JP5281387B2 - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dishwasher for shortening a time required for drying an object to be washed, and reducing the temperature of air discharged outward when drying the object to be washed. <P>SOLUTION: The dishwasher includes: a washing tub D having a square shape in a plane view; a blowing port 21 for supplying air from blowing means to the washing tub and a discharge port 22 for discharging the air of the washing tub, which are arranged on the side peripheral wall of the washing tub D; and heating means 9 for heating the air supplied from the blowing port 21, which is arranged on the bottom of the washing tub D. The blowing port 21 and the discharge port 22 are separately formed in the lower parts on both right and left sides of one side wall among the four side walls in the washing tub D. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

The present invention includes a washing tank having a square shape in plan view,
The side peripheral wall portion of the cleaning tank is formed with an air outlet for supplying air from the blowing means into the cleaning tank, and an exhaust port for discharging the air in the cleaning tank,
The present invention relates to a dishwasher provided with heating means for heating the air supplied from the blower opening at the bottom of the washing tank.

Such a dishwasher is configured to perform a process of cleaning and drying an object to be cleaned housed in a cleaning tank.
And when drying a washing thing, air is made to flow in the form which supplies the air from a ventilation means in a washing tub through a blower outlet, and discharges the air in a washing tub from an exhaust outlet, and is supplied from a blower outlet. The heated air is heated by the heating means.

As a conventional example of such a dishwasher, the front side wall portion of the four side wall portions in the washing tank is formed with a blower port at a position corresponding to the lower side and the right side, and the exhaust port at the upper side. In addition, there is one formed at a position corresponding to the left side (for example, see Patent Document 1).
Incidentally, the air exhausted from the exhaust port is exhausted to the outside of the dishwasher. In the above Patent Document 1, the external exhaust port that exhausts the air exhausted from the exhaust port to the outside is the front side of the machine body. In addition, it is formed on the upper side so as to communicate with the exhaust port, and the air exhausted from the exhaust port is exhausted to the outside through the external exhaust port.
In the tableware washing machine of the above-mentioned patent document 1, the washing tank is provided in a drawer part that can be pulled out and housed with respect to the main body part. In the state where the drawer is housed in the main body, the washing object stored in the washing tank is washed and dried. ing.

Japanese Patent No. 3129316

In a dishwasher, it is desired to shorten the time required to dry the object to be washed after washing, and the temperature of the air discharged from the exhaust port, that is, the dishwasher It is desired to lower the temperature of the air discharged to the outside.
In addition, if the time required for drying can be shortened, there is an advantage that the time for operating the air blowing means and the heating means is shortened and the running cost is reduced, and it is desirable to shorten the time required for drying. It will be.
In addition, if the temperature discharged to the outside during drying can be lowered, even if the air discharged to the outside hits the user, it can avoid giving the user discomfort and is discharged to the outside. It would be desirable to lower the temperature of the air.

However, in the tableware washing machine of the above-mentioned patent document 1, it is difficult to shorten the time required for drying the washing object after washing, and it is difficult to reduce the temperature of the air discharged to the outside. .
That is, as shown in FIG. 7, the air blowing port 30 is formed in a position corresponding to the lower side and the right side in one of the four side walls in the cleaning tank D, and the exhaust port 32 is arranged upward. In the case where it is formed at a position corresponding to the left side and the left side, and the air supplied from the blower opening 30 into the washing tank is heated by the heating means 31, The air supplied to the inside and heated by the heating means 31 is a side wall portion (hereinafter referred to as an opposing side wall) facing a side wall portion (hereinafter referred to as a mouth forming side wall portion) where the blower port 30 and the exhaust port 32 are formed. Toward the upper side), the fluid flows while moving upward, then reflects off the opposing side wall and flows toward the side where the mouth forming side wall is present. And the air flowing toward the mouth forming side wall portion flows to the left side and the upper side of the mouth forming side wall portion because the exhaust port 32 is located on the left side and the upper side of the mouth forming side wall portion. It is discharged from the exhaust port 32.

In this way, the main flow of air supplied from the blower port 30 to the inside of the cleaning tank D flows toward the opposite side wall part while rising, and then, at the exhaust port formation place formed in the mouth forming side wall part. Since the air flows toward and is discharged from the exhaust port, the portion X (shaded portion in the figure) on the lower side of the cleaning tank D where the exhaust port 32 is located is difficult for air to flow. It becomes.
For this reason, it becomes difficult to shorten the time required for drying because the object to be cleaned located in the lower portion X is difficult to dry efficiently.

  Further, in the case of the configuration as shown in FIG. 7, since the exhaust port 32 is formed above the mouth forming side wall, it is heated by the heating means 31 and above the internal space of the cleaning tank D. Since the high-temperature air located on the side tends to be discharged through the exhaust port 32, the air discharged from the exhaust port 32 tends to become high temperature. As a result, the air discharged to the outside of the dishwasher It was difficult to reduce the temperature.

  The present invention has been made in view of the above circumstances, and its purpose is to shorten the time required for drying the object to be cleaned, and to discharge the object to the outside when drying the object to be cleaned. It is in the point which provides the dishwasher which can aim at low temperature of the air to do.

The dishwasher of the present invention is provided with a washing tank having a square shape in plan view,
The side peripheral wall portion of the cleaning tank is formed with an air outlet for supplying air from the blowing means into the cleaning tank, and an exhaust port for discharging the air in the cleaning tank,
The bottom of the washing tank is a dishwasher provided with a heating means for heating the air supplied from the blower port,
Wherein the one side wall portion of the four side wall portions in the cleaning tank, the blower port and the exhaust port is formed at a position spaced and both left and right sides at the lower side,
The said heating means is provided in the location facing the said ventilation port in the bottom part of the said washing tank, It is characterized by the above-mentioned.

That is, since the blower port and the exhaust port are formed on one side wall part of the four side wall parts in the cleaning tank at a position on the lower side and on the left and right sides, from the blower port to the inside of the cleaning tank. Although the supplied air varies in various ways depending on the presence of the object to be cleaned, the following flow can be considered as the main flow.
If it demonstrates based on FIG. 5, the air supplied into the washing tank from the ventilation port 21 and heated with the heating means 9 will be the side wall part (henceforth an opening formation side wall part) in which the ventilation port 21 and the exhaust port 22 are formed. Toward the side wall part (hereinafter abbreviated as "opposite side wall part"), and flows while moving upward, and then reflects off the opposite side wall part to exist on the side where the mouth forming side wall part is present. It will flow toward. The air flowing toward the mouth forming side wall portion is located on the lower side of the mouth forming side wall portion and at a position away from the air blowing port 21 in the left-right direction. It flows toward the away side and downward, and is discharged from the exhaust port 22.

Thus, the main flow of the air supplied from the air blowing port to the inside of the washing tank flows toward the opposite side wall portion while rising, and then, on the lower side of the mouth forming side wall portion and in the left-right direction with respect to the air blowing port. In the cleaning tank, it flows while moving downward toward the exhaust port formed at a position away from the exhaust port, and is discharged from the exhaust port. Therefore, the lower portion X (see FIG. The air also tends to flow in the middle hatched portion.
Therefore, it is possible to shorten the drying time by allowing air to flow through the entire cleaning object in the cleaning tank and drying the cleaning object efficiently.

In addition, since the blower port and the exhaust port are formed on one side wall part of the four side wall parts in the cleaning tank at a position on the lower side and on the left and right sides, from the blower port to the inside of the cleaning tank. As the main flow of the supplied air, although the above-mentioned flow can be considered, in addition, a flow that is short-circuited from the blower port to the exhaust port can be considered.
When a description is added based on FIG. 5, a part of the air supplied from the blower port 21 to the inside of the cleaning tank flows toward the opposite side wall part side because the existence side of the exhaust port 22 is a low pressure part. Without being heated by the heating means 9, it can be considered that a short-circuited flow that flows short-circuiting toward the exhaust port 22 can be considered.

Since the air flowing in a short circuit from the blower port to the exhaust port in this way has a low temperature, it is effective for mixing with the main flow of air and lowering the temperature of the air discharged from the exhaust port. Become. Moreover, the main flow of air that flows toward the exhaust port is air that has been deprived of vaporization heat to dry the object to be cleaned, and is cooler than the air located at the top of the cleaning tank. The temperature of the air mixed with the flowing air and the air flowing in a short circuit is sufficiently low.
By the way, in the state where the object to be cleaned in the cleaning tank has been dried, the temperature of the air in the main flow becomes high, but since the air thus heated has a low specific gravity, it stays in the upper part of the cleaning tank. As a result, the amount of air in the flow that flows in a short circuit tends to increase.Therefore, even when the object to be cleaned in the cleaning tank has been dried, the air flows in a short circuit with the air in the main flow. The temperature of the air mixed with the air is sufficiently low.
Therefore, the temperature of the air discharged from the discharge port, that is, the air discharged to the outside can be lowered.

  In short, according to the first characteristic configuration, the time required for drying the object to be cleaned can be shortened, and the temperature of the air discharged to the outside when the object to be cleaned is dried can be reduced. A washing machine can be provided.

In addition to the first feature configuration, the second feature configuration of the present invention includes:
The side wall part in which the said ventilation port and exhaust port are formed is a point which is a front side wall part corresponded to the body front side among the four side wall parts in the said washing tank, It is characterized by the above-mentioned.

That is, the air outlet and the exhaust port are formed in the front side wall portion corresponding to the front side of the body among the four side walls in the cleaning tank, and the air exhausted from the exhaust port is discharged to the front side of the body. Such a configuration is easy to perform.
That is, in general, in the dishwasher, when the air discharged from the exhaust port is discharged to the outside, it is discharged to the front side of the machine body. Therefore, the structure for discharging the air discharged from the exhaust port to the front side of the body can be simplified.

  Therefore, in addition to the effect by the 1st characteristic structure, it came to provide the dishwasher which can aim at the simplification of a structure.

In addition to the first feature configuration or the second feature configuration, the third feature configuration of the present invention includes:
The washing tank is provided in a drawer portion provided so as to be movable and retractable with respect to the main body,
The blowing means is provided in the drawer portion in a state located below the cleaning tank,
An air supply duct for guiding the air supplied from the air blowing means to the air outlet is provided.

That is, since the cleaning tank is provided in the drawer part that can be moved and retracted with respect to the main body part, the operation of storing the object to be cleaned in the cleaning tank in the state where the drawer part is pulled out from the main body part. In the state where the drawer portion is stored in the main body portion, the cleaning object stored in the cleaning tank is cleaned and dried.
And in the state which pulled out the drawer | drawing-out part from the main-body part, since the upper part of a washing tank will be in the state exposed largely, the operation | work which accommodates a washing | cleaning target object with respect to a washing tank, and the operation | work taken out can be performed favorably. .
In addition, the drawer unit is provided with a blowing unit in a state of being positioned below the cleaning tank, and air supplied from the blowing unit is supplied to the blowing port through the air supply duct and supplied into the cleaning tank. Become.
And since the blowing means is provided below the washing tank, compared to providing the blowing means on the front wall portion of the drawer portion, the front and rear length of the drawer portion is suppressed, and the drawer portion is In a state where the drawer is pulled out from the main body, it is possible to avoid the drawer from protruding greatly from the main body, and it is easy to use.

  Accordingly, in addition to the operational effects of the first characteristic configuration or the second characteristic configuration, a dishwasher is provided that can prevent the drawer portion from protruding greatly from the main body portion when the drawer portion is pulled out from the main body portion. It came to do.

The fourth feature configuration of the present invention is in addition to the third feature configuration,
The air blowing means is provided on the back side in the depth direction of the drawer portion.

  That is, when the drawer portion is pulled out from the main body portion, it is supported in a cantilevered manner with respect to the main body portion. In such a state, the blowing means is provided on the back side in the depth direction of the drawer portion. Therefore, the moment to move the drawer part downward due to the gravity of the blower means is smaller than when the blower means is located on the front side in the depth direction of the drawer part (front side of the drawer part). Thus, the drawer portion can be favorably supported while simplifying the configuration for supporting the drawer portion with respect to the main body portion.

  Accordingly, in addition to the operational effects of the third characteristic configuration, a dishwasher that can favorably support the drawer portion while simplifying the configuration for supporting the drawer portion with respect to the main body portion is provided. It came.

In addition to any of the first to fourth feature configurations described above, the fifth feature configuration of the present invention includes:
An exhaust duct is provided for guiding the exhaust from the exhaust port to the external exhaust port on the front side of the machine body and on the upper side of the machine body.

That is, the air discharged from the exhaust port is guided by the exhaust duct, and is discharged to the outside from the external discharge port on the front side of the body and on the upper side of the body.
In other words, generally, a dishwasher is often installed in a state where it is incorporated in a kitchen unit equipped with a sink and a cooking table. When installed in this way, the external outlet is on the front side of the aircraft. In addition, because it is located on the upper side of the fuselage, even if the air discharged from the external discharge part falls on the user, it will fall on the waist or abdomen, so that it can avoid giving the user a discomfort It becomes.
In other words, if the external discharge port is positioned on the front side of the fuselage and on the lower side of the fuselage, the air exhausted from the external discharge part falls on parts such as the user's shin and ankle that are not covered with clothing. This may cause discomfort to the user, but this can be avoided.

  Therefore, in addition to the effect by any one of the said 1st-4th characteristic structure, it came to provide the dishwasher which can avoid giving a user discomfort.

In addition to the fifth feature configuration, the sixth feature configuration of the present invention includes:
In the exhaust duct, a resistor that provides resistance to the air flow in order to make the air flow turbulent is arranged.

That is, the air that is discharged from the exhaust port and flows toward the external exhaust port through the exhaust duct is in a high humidity state in order to evaporate water when the object to be cleaned is dried. Turbulent flow due to resistance by the resistor, a low-pressure vortex section is generated and condensation tends to occur, and as a result, the humidity of the air discharged from the external discharge port can be reduced. It will be.
In this way, the humidity of the air discharged from the external discharge port can be reduced, so that it is possible to suppress inconvenience that a large amount of condensation occurs due to the air discharged from the external discharge part contacting the kitchen unit etc. It becomes.

  Therefore, in addition to the effect by the said 5th characteristic structure, it came to provide the dishwasher which can suppress that the air discharged | emitted from an external discharge part dew condensation.

Embodiment
A dishwasher according to the present invention will be described with reference to the drawings.
As shown in FIG. 1 to FIG. 3, a main body portion 1 having an open front portion is provided, and a drawer portion 2 provided with 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.

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, and an external discharge port G for discharging the air discharged from the cleaning tank D to the outside is on the front side of the body and the body. It is formed in the upper side part of the door body A in the drawer part 2 as an upper side.

As shown in FIGS. 2 to 4, 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.
Also, below the bottom of the washing tank D in the drawer 2 is a forward pump 6 that functions as a cleaning pump and a reverse rotation that functions as a drainage pump, and a drying unit that blows air for drying. For example, a cleaning nozzle 8 and an electric heater 9 as a heating means are disposed inside the cleaning tank D, and tableware and the like. A cleaning basket 10 for storing and placing the object to be cleaned is detachably mounted in 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 the dual-purpose pump 6 is connected to a drain pipe 12.
In the figure, F is an air filter installed in the suction port of the drying fan 7, and J is a water level sensor J connected to the water storage recess S by a guide tube 13.

As shown in FIGS. 2 to 5, the air from the drying fan 7 is washed into the front side wall portion Df corresponding to the front side of the machine body, that is, the front side of the drawer, among the four side walls in the cleaning bath D. A blower port 21 to be supplied inside and an exhaust port 22 for discharging the air in the cleaning tank are formed at positions separated on the left and right sides on the lower side. Specifically, the blower port 21 and the exhaust port 22 are formed so as to be positioned below the cleaning basket 10, and in the present embodiment, the blower port 21 is on the right side and the exhaust port 21 is exhausted. The mouth 22 is located on the left side.
The drying fan 7 is disposed on the back side in the depth direction of the drawer portion 2, and an air supply duct 23 that guides the air supplied from the drying fan 7 to the blower port 21 is provided at the bottom of the cleaning tank D. The exhaust duct 24 is provided along the front side wall Df of the cleaning tank D and is provided along the front side wall Df of the cleaning tank D. The exhaust duct 24 guides the exhaust from the exhaust port 22 to the external outlet G. Yes.
Note that the standing posture portion 23A provided along the front side wall portion Df of the cleaning tank D in the air supply duct 23 is an inverted U-shape to prevent water in the cleaning tank from flowing into the air supply duct. Is formed.

  Inside the exhaust duct 24, there is provided a resistor 25 that gives resistance to the air flow in order to make the air flow turbulent. Specifically, the resistor 25 is configured by providing, on the left and right side walls of the exhaust duct 24, resistance plates 25a in an inclined posture that are positioned downward on the inner side in a state of being arranged vertically.

  As shown in FIG. 4, the drawer 2 is equipped with a control unit H that controls the operation. The control unit H is configured to supply the water supply valve 4 a and the dual-purpose pump 6 on the basis of a command input from the operation unit SS. The operation of the drying fan 7 and the heater 9 is controlled to clean the object to be cleaned in the internal space of the cleaning tank D with hot water as a cleaning liquid, and stored in the water storage recess S of the cleaning tank D and In the rinsing operation in which the object to be cleaned is rinsed with the rinsing water heated by the heater 9, the drain operation in which the rinsing water stored in the water storage recess S of the cleaning tank D is drained, and the heater 9 is heated. The drying fan 7 supplies drying air to the internal space of the cleaning tank D and performs various operations such as a drying operation in which the gas in the internal space of the cleaning tank D is discharged outside the apparatus. The operation performed by the part H will be described.

  That is, the user can select various operation courses such as a continuous operation course in which the operation section SS is operated in the order of the cleaning operation, the rinsing operation, the drainage operation, and the drying operation, and the drying only course in which only the drying operation is performed. Furthermore, as a continuous operation course, a standard operation course, a careful operation course, a speedy operation course, and a rapid operation course are provided. In this embodiment, only the standard operation 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) are executed sequentially.

  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 is performed until the time has elapsed, and then the combined drainage 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 and the heater 9 are operated. Rinsing operation in which the object to be cleaned is rinsed with the rinse water heated until the set time elapses, and the draining operation in which the dual-purpose pump 7 is operated in reverse to drain the rinse water stored in the bottom of the cleaning tank D The rinsing operation for sequentially performing the above 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, and the amount of gas discharged from the internal space of the cleaning tank D is the dry operation discharge amount. The ventilation operation for operating the drying fan 7 is performed until the rinse water stored at the bottom of the cleaning tank D is discharged so that the discharge amount for the preceding operation is smaller than that.

In the drying operation, the heater 9 is operated, and a heating and drying operation for operating the drying fan 7 is performed so that the amount of gas discharged from the internal space of the cleaning tank D becomes the amount for discharging the drying operation. The operation is continued until a set time for heating and drying (for example, 25 minutes) elapses.
When the set time for heating and drying elapses, the heater 9 is stopped, and the drying fan 10 is operated so that the amount of gas discharged from the internal space of the cleaning tank D becomes the amount of discharge for drying operation. The operation is performed until the set time for air drying has elapsed.

As shown in FIG. 5, the dishwasher described above is configured such that the main flow of air supplied to the inside of the washing tank D from the blower port 21 formed in the front wall part Df of the washing tank D rises while the rear side wall part. And then flows while moving downward toward an exhaust port 22 formed on the lower side of the front side wall portion Df and at a position separated from the blower port 21 in the left-right direction. Therefore, the air easily flows also to the lower portion X (shaded portion in the figure) on the side where the exhaust port 22 is located in the cleaning tank.
Therefore, it is possible to shorten the drying time by allowing air to flow through the entire cleaning object in the cleaning tank and drying the cleaning object efficiently.

  In addition, since a part of the air supplied from the blower port 21 to the inside of the cleaning tank D does not flow toward the rear side wall portion side because the exhaust port 22 side is a low pressure portion, the heater 9 It can be considered that the flow becomes a short-circuit flow that flows short-circuiting toward the exhaust port 22 without being heated, and thus short-circuits and flows from the blower port 21 toward the exhaust port 22. Since the temperature of the air is low, it is effective for mixing with the main flow of air and lowering the temperature of the air discharged from the exhaust port 22. Moreover, the main flow of air that flows toward the exhaust port 22 is air that has been deprived of vaporization heat for drying of the object to be cleaned, and is cooler than the air located above the cleaning tank D. The temperature of the air in which the main flow of air and the air flowing in a short circuit are mixed is sufficiently low.

And in the state which the drying of the washing | cleaning target object in a washing tank advanced, the temperature of the air of the main flow becomes high temperature, but since the air which became high temperature in this way is light specific gravity, it is in the upper part of the washing tank D. It tends to stay, and the amount of air in the short-flowing flow tends to increase.Therefore, even when the object to be cleaned in the cleaning tank has been dried, it is short-circuited with the main flow of air. The temperature of the air mixed with the flowing air is sufficiently low.
Therefore, the temperature of the air discharged from the discharge port, that is, the air discharged to the outside can be lowered.

FIG. 8 shows a case where an object to be cleaned is dried using the dishwasher of the present embodiment (hereinafter, abbreviated as drying in the present embodiment) and an object to be cleaned by the conventional dishwasher shown in FIG. The experimental results are shown in the case of drying (hereinafter abbreviated as drying in the conventional form).
The first and second test numbers are the results in the case of drying in the conventional form shown in FIG. 7, and the third and fourth test numbers are the results in the case of drying in the present embodiment.
This experiment was performed based on “Japan Electric Manufacturers Association (JEMA) voluntary standards”. In the case of drying in this embodiment, the drying rate in the third test and the fourth rate The average value of the drying rate of the test is 67.1, whereas in the case of drying in the conventional form, the average value of the drying rate of the first test and the drying rate of the second test is 58. .3, and the drying rate in this embodiment is superior to the drying rate in the conventional mode.
The drying rate% is obtained by the following equation, and A determination and B determination in the equation are determined according to the determination criteria shown in FIG.
Drying rate% = (A judgment tableware score × 2 + B judgment tableware score) ÷ Previous tableware score × 2 × 100

Further, as shown in FIG. 8, the temperature of the gas discharged from the washing tank D to the outside of the apparatus during the drying operation, that is, the exhaust temperature, is the conventional drying in this embodiment. Less than drying in form.
Incidentally, the reason that the exhaust temperature after 1 minute immediately after the start of drying is higher than the exhaust temperature 15 minutes after the start of drying is that the temperature of the object to be cleaned is high due to the above-mentioned heating rinse. It is.

[Another embodiment]
(1) In the above embodiment, the case where the air blowing means 7 is provided below the cleaning tank D and on the back side in the depth direction of the drawer portion 2 is illustrated, but the depth direction of the drawer portion 2 below the cleaning tank D is illustrated. It can be provided at various positions, for example, on the side, and between the front wall portion Df of the cleaning tank D and the door body A.

(2) In the above embodiment, in addition to the air blowing means 7, the dual-purpose pump 6 is also provided below the cleaning tank D and on the back side in the depth direction of the drawer portion 2. You may make it provide in the near side of the depth direction of the drawer | drawing-out part 2 under the washing tank D. FIG.

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

(4) In the first and second embodiments, the example in which the dishwasher according to the present invention is applied to a slide type dishwasher is shown, but the present invention can be applied to a dishwasher other than the slide type. For example, the washing tub is stored in the main body of the dishwasher, and the front wall of the main body is configured to be openable and closable with respect to the main body, and the front side wall of the cleaning tub is opened and closed with respect to the cleaning tub. You may apply this invention with respect to the dishwasher of the form formed freely and equipped with the front wall part of a main-body part.

Whole perspective view of dishwasher Notched side view of a dishwasher with the washing tub stored in the storage position The perspective view which shows the bottom part of a drawer | drawing-out part Schematic diagram of dishwasher Perspective view showing air flow in dry operation Flow chart showing the control operation of the control unit The perspective view which shows the flow of the air in the dry operation state in a prior art example Diagram showing experimental results of drying operation Figure showing judgment criteria

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main-body part 2 Drawer part 7 Blower means 21 Blower port 22 Exhaust port 23 Air supply duct 24 Exhaust duct 25 Resistor D Washing tank

Claims (6)

A washing tank having a square shape in plan view is provided,
The side peripheral wall portion of the cleaning tank is formed with an air outlet for supplying air from the blowing means into the cleaning tank, and an exhaust port for discharging the air in the cleaning tank,
The bottom of the washing tank is a dishwasher provided with a heating means for heating the air supplied from the blower port,
Wherein the one side wall portion of the four side wall portions in the cleaning tank, the blower port and the exhaust port is formed at a position spaced and both left and right sides at the lower side,
The dishwasher provided with the said heating means in the location facing the said ventilation port in the bottom part of the said washing tank .   The dishwasher according to claim 1, wherein the side wall portion in which the blower port and the exhaust port are formed is a front side wall portion corresponding to the front side of the machine body among the four side wall portions in the cleaning tank. The washing tank is provided in a drawer part that is movable and retracted with respect to the main body part,
The blowing means is provided in the drawer portion in a state located below the cleaning tank,
The dishwasher of Claim 1 or 2 provided with the air supply duct which guides the air supplied from the said ventilation means to the said ventilation opening.   The dishwasher of Claim 3 with which the said ventilation means is provided in the back | inner side of the depth direction of the said drawer | drawing-out part. The dishwasher as described in any one of Claims 1-4 with which the exhaust duct which guides the exhaust_gas | exhaustion from the said exhaust port to the external discharge port of the body front side and the body upper part side is provided.   The dishwasher according to claim 5, wherein a resistor that provides resistance to the air flow is disposed in the exhaust duct to turbulent air flow.

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