JPH07313430A - Tableware washing machine - Google Patents

Abstract

PURPOSE:To prevent drops of water sticking on the constituent wall of an air discharge passage from dripping out of the air discharge port at the downstream end by providing a drooping wall on the ceiling surface nearby the downstream end of the air discharge passage over the entire area in the width direction and forming a slanting surface whose slant becomes gentle toward the upstream side as the bottom surface of the air discharge passage on the upstream side of the drooping wall. CONSTITUTION:Tableware, etc., put in a washing chamber 2 is washed with the water jetted from nozzle, and when the tableware is dried, the wet air in the washing chamber 2 is discharged to the outside from the air discharge passage 5 of a fan 80. The drooping wall which is formed over the entire area in the width direction of the ceiling surface nearby the downstream end of the air discharge passage 5 is provided on the ceiling surface, and the bottom surface of the air discharge passage 5 positioned on the upstream side of the drooping wall is slanted so as to gradually decrease slant toward the upstream side. A group of drops of water sticking on the ceiling surface of the air discharge passage 5 is blown gradually to the downstream side through the air blowing operation of the fan 80, stopped by the drooping wall, and guided downward by the drooping wall to drip on the bottom surface of the air discharge passage 5. The dripping drops of water flows to the downstream side and is put back to the washing chamber 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher of the type having an exhaust passage.

[0002]

2. Description of the Related Art As a dishwasher, there is a type in which dishware (M) stored in a washing room (2) is washed with water jetted from a nozzle as shown in FIG. Is a washing chamber formed in the casing (1) with an open front.
Nozzles (60) and (60) for jetting washing water are provided in (2), and the front opening of this washing chamber (2) is closed by a door (3). And, a storage part (23) for storing cleaning water is formed at the bottom of the cleaning chamber (2). Further, a heater (20) for raising the cleaning power by raising the temperature of the cleaning water in the storage section (23) to a predetermined temperature is additionally provided on the back surface of the bottom wall of the cleaning chamber (2). Furthermore, when the dishes are dried after the washing operation, wet air is supplied to the washing room.
An exhaust passage (5) for discharging from (2) to the outside is provided between the ceiling wall (2b) and the top plate (1a) of the casing (1), and is provided in the washing room (2) when the dishes are dried. An air supply passageway (83) having a fan (80) for supplying dry air is provided.

In this type of washing machine, when the dishes (M) are housed in the washing room (2) and the washing operation is executed, the storing section (2
The hot water stored in 3) and heated to a predetermined temperature by the heater (20) is ejected from the nozzles (60) (60) to wash the dishes (M). However, this has a problem that water droplets adhering to the constituent wall of the exhaust passage (5) easily drip from the exhaust port at the downstream end and wet the floor surface.

Since this washing machine carries out the washing operation with hot water jetted from the nozzles (60) (60), the washing chamber generated during the washing operation
(2) When the steam in the exhaust passage (5) flows, water vapor is generated by contact and dew condensation on the passage wall. Then, the exhaust passage
Water droplets adhering to the ceiling surface, etc. of (5) will be discharged through the exhaust passage during the drying operation (executed after the cleaning operation) in which the fan (80) operates.
(5) It is blown by the exhaust flow inside and gradually moves to the downstream side. Then, the moving water drops finally drop on the floor surface from the exhaust port (52) at the downstream end of the exhaust passage (5).

Since the steam has a high temperature, the steam tends to rise, and when flowing through the exhaust passage (5), a large amount flows along the ceiling surface. According to the present invention, such "the dishes housed in the washing chamber (2) are washed with the water jetted from the nozzle, and the wet air in the washing chamber (2) is dried by the fan (80) when the dishes are dried. Prevents the inconvenience of water droplets adhering to the constituent walls of the exhaust passage (5) dripping outside from the exhaust port (52) at the downstream end of the dishwasher designed to be discharged to the outside through the exhaust passage (5). That is the subject.

[0006]

[Technical Means] The technical means of the present invention taken in order to solve the above-mentioned problem is that "a hanging wall formed on the ceiling surface near the downstream end of the exhaust passage (5) over the entire width direction thereof. Is provided, and the bottom surface of the exhaust passage (5) located on the upstream side of the hanging wall is an inclined surface that decreases toward the upstream side. ”

[0007]

The above technical means of the present invention operates as follows. When the water droplets adhering to the ceiling surface of the exhaust passage (5) during dishwashing are gradually blown down to the downstream side by the blowing action of the fan (80) during the drying of the dishes, these water droplets will eventually be exhausted.
It reaches the hanging wall provided on the ceiling near the downstream end of (5). Then, the water droplet group is blocked by the hanging wall and cannot move to the downstream side thereof, and the water droplet is guided downward by the hanging wall to exhaust from the lower end thereof to the exhaust passage.
Drop on the bottom of (5). Then, the bottom surface of the exhaust passage (5) is an inclined surface in which the upstream side portion becomes lower toward the upstream side than the portion facing the hanging wall, and thus the dropped water droplet group propagates down the bottom surface. Flow toward the upstream side,
It is returned to the washing room (2) side.

Further, since the water droplet group attached to both side walls of the exhaust passage (5) flows down through the wall toward the inclined bottom surface of the exhaust passage (5), the water droplets also drip from the ceiling surface. It is returned to the washing room (2) side like the water drops.

[0009]

[Effect] The present invention has the following unique effects. Exhaust passage
Water droplets adhering to the wall surface of (5) are returned to the cleaning chamber (2) side, so this is the exhaust port (5) formed at the downstream end of the exhaust passage (5).
The inconvenience of dripping outside from 2) can be prevented.

[0010]

Embodiments of the present invention described above will now be described in detail with reference to the drawings. The embodiment shown in FIGS. 1 to 6 is one in which the present invention is applied to a dishwasher of a type installed in a space below a counter (K) of a system kitchen. A cleaning chamber (2) that opens to the front is formed in the front, and the front opening is closed by a door (3) that swings up and down to open and close. The racks (4) and (4) supported by the rails (R) and (R) so as to be freely drawn are housed above and below the cleaning chamber (2). Nozzle arms (6) and (6) for ejecting cleaning water are separately provided in the. Also, to supply drying air,
The air supply device (8) is housed in the space behind the cleaning chamber (2), and the exhaust passage (5) is arranged in the space above the cleaning chamber (2).
Furthermore, in the space below the bottom of the washing chamber (2), the filtration container (7)
A cleaning pump (62) for sucking the cleaning water, a drainage pump (75) for discharging the dirty cleaning water after cleaning, and the like are accommodated.

The details will be described below. The cleaning room (2) is shown in Figure 1.
As shown in Fig. 4, the storage unit is configured into a box body having a substantially square cross section open to the front and having a heater (20) at its lower part.
(23) is formed. Multiple nozzles (60) in the wash room (2)
Nozzle arms (6) and (6) equipped with (60) are arranged in upper and lower two stages. Further, the discharge port of the washing pump (62) penetrating the bottom wall (21) is connected to the lower nozzle arm (6), and the tip of the communication circuit (63) connected to this connection portion has the upper nozzle arm (6). 6) is connected to.

The filtration container (7) for filtering the washing water is formed by deeply denting the bottom wall (21) of the washing chamber (2), and the filtering device (70) is arranged at the upper edge of the bottom. To be done. The side trunk of the filtration container (7) and the suction port of the cleaning pump (62) are connected to each other. A drain pipe (74) having a drain pump (75) is connected to the bottom of the filtration container (7).

A space between the washing chamber (2) and the casing (1) is shown in FIG.
Further, as shown in FIG. 2, an air supply passage (83) having an air supply device (8) and an exhaust passage (5) are provided. The air supply device (8) is an air supply port provided at the upper end of the front surface of the casing (1).
Opening (81) in the lower part of the rear wall (27) that forms the cleaning chamber (2) from (10)
The air supply fan (80) is built in the inverted L-shaped air supply passage (83) leading to the air supply device (8), and the air supplied by the air supply device (8) is heated by the heater (20) during the drying process. Then, the temperature is set to a predetermined temperature.

The other exhaust passage (5) is an inlet formed in the central portion of the ceiling wall (26) that constitutes the exhaust port (52) provided in the upper front end of the casing (1) and the cleaning chamber (2). (51) is communicated and connected, and is inclined so that it becomes higher toward the front of the instrument body. That is, as shown in FIG. 3, the exhaust passage (5) includes a first cylinder (58) extending from the cleaning chamber (2),
The second cylinder (59) is composed of a second cylinder (59) connected to the downstream end of the first cylinder (58) and connected to the front surface of the instrument body.
Is integrally formed in a decorative box (H) attached to the upper front surface of the casing (1) as shown in FIG. And
The downstream end of the second cylinder (59) is an inclined passage (520) which is lowered toward the upstream side. The inclined passage (520)
The ceiling plate (529) located at the upstream end of the
Is provided. Then, the hanging plate (521) projects downward in a manner of traveling over the entire width of the exhaust passage (5), and the passage bottom wall (523) of the portion facing the lower side of the hanging plate (521). ) Is an inclined surface that becomes lower toward the upstream side. Therefore, the bottom surface of the exhaust passage (5) composed of the first and second cylinders (58) and (59) has a slope that gradually decreases toward the upstream side. Further, at the boundary between the downstream end of the inclined passage bottom wall (523) in the second cylinder (59) and the inclined passage (520) continuing to this downstream side, the step (524) where the downstream side becomes higher. )
Is formed and folded, whereby the condensed water is surely prevented from flowing to the downstream side. The standing surface (526) of the step (524) is located in the same vertical plane as the downstream surface (521a) of the hanging plate (521) protruding from the ceiling wall (529) of the exhaust passage (5). Is configured to. Therefore, the standing surface (526) is located downstream from the upstream surface (521b) of the hanging plate (521) by the thickness of the hanging plate (521). Further, in this embodiment, the upstream surface (521b) of the hanging plate (521) corresponds to the hanging wall described in the above-mentioned technical means. In the exhaust passage (5), the rectifying plate (525) (52) (52)
5) are arranged side by side in the horizontal direction, and the current plate (525) (525)
Downstream end face (525a) and the downstream surface (5a) of the hanging plate (521).
21a) are formed to match. Therefore, it is advantageous in molding.

In this embodiment, as shown in FIG. 2, a rectangular tubular extension duct (95) can be connected to the exhaust port (52) as required, and the extension duct (95). On opposite sides of the mounting flange (96) (9
6) is protruding. And, on the outer peripheral wall of the extension duct (95), a notch (97) is provided at a portion corresponding to the central portion of the mounting flanges (96) (96) located at the front and rear, and the notch (97) Part of that (upstream side) can be broken off by using. That is, as shown in FIG. 1, when the tip of the counter (K) projects forward from the exhaust port (52), the extension duct
(95) or an extension duct (95) partially folded by the notch (97) and connected to the exhaust port (52) in a high inclination state on the downstream side, whereby a counter for the exhaust port (52) is formed.
The length of the extension duct (95) is adjusted according to the protruding length of (K) so that it can be used. In addition, extension duct
Since (95) is inserted into the inclined passage (520) when it is connected to the exhaust port (52), the downstream side becomes a high inclined state. And
When connecting the extension duct (95) to the exhaust port (52), screw holes (528) (5) formed on both sides of the exhaust port (52)
The mounting flanges (96) and (96) are screwed to 28), but in this case, when the extension duct (95) is used in a long state without breaking at the notch (97), it is installed at the front and rear. Mounting flange (96)
Of the (96), fold off the front mounting flanges (96) (96). For this reason, a notch (96a) is provided at the base end portion of the front side mounting flanges (96) (96) to facilitate breakage. And
When the extension duct (95) is connected to the exhaust port (52) and the tip of the extension duct (95) is projected obliquely forward toward the upper side of the counter (K),
The moist air contacts the lower surface of the counter (K) and prevents condensation water from adhering to this part.

If there is no inconvenience that the extension duct (95) is firmly inserted in the inclined passage (520) and comes off, the mounting flange (9
6) (96) is unnecessary, and the hanging plate (521) serves as a stopper for the extension duct (95) at this time. As shown in FIG. 2, an air supply port (10) located at the upstream end of the air supply passage (83) for sucking the drying air is formed on the side of the exhaust port (52). There is.

Next, the actual use of the dishwasher will be described. When tableware (M) (M) is stored in the rack (4) (4) and this rack (4) (4) is inserted into the washing chamber (2) and the washing operation is executed in this state, The cleaning water in the storage tank (23) supplied from the water supply pipe (25) and warmed by the heater (20) is sucked by the cleaning pump (62) and passes through the filtering device (70), and the nozzle arm (6 ) (6) and is sprayed from the nozzles (60) (60) to the dishes (M) (M) to wash them.

At the time of the cleaning, the vapor in the cleaning chamber (2) comes into contact with the wall surface of the exhaust passage (5) to cause dew condensation, and water droplets are attached. When the cleaning operation is completed, the drainage pump (75) operates and the stored water in the storage section (23) is discharged from the drainage pipe (74). After that, the drying process is executed, the air supply device (8) is activated, and the air intake sucked from the air supply port (10) by the air supply fan (80) is discharged from the opening (81) to the cleaning chamber (2).
The heater (20) is kept heated while being supplied to the inside.

Then, the moist air in the cleaning chamber (2) is exhausted through the exhaust passage (5) by the action of the air supply fan (80).
However, at this time, during the above-mentioned cleaning operation and drying process, the water droplets that have condensed on the ceiling wall (529) of the exhaust passage (5) due to dew condensation of steam or moist air. Shows that the moist air tends to rise at high temperatures and the ceiling wall (52
Since it flows along 9), it is blown away by the air blown from the fan (80) and gradually moved to the downstream side. Then, as shown in FIG. 4, when the water droplet (Y) moves to the hanging plate (521) portion, it is guided downward by the upstream surface (521b) of the hanging plate (521) and from the lower end thereof to the passage bottom wall (523). Drop on. At this time, since the step portion (524) is formed in the portion that is displaced from the lower side of the hanging plate (521) to the downstream side, the drop water droplet (Y) is reliably prevented from moving to the downstream side. It Then, the water droplets dropped on the passage bottom wall (523) flow through the passage bottom wall (523), which has become lower toward the upstream side, and are returned to the cleaning chamber (2) side, so that the exhaust passage (5) Water drops adhering to the wall surface will not drop outside from the exhaust port (52) at the downstream end.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is an explanatory view of the air supply port (10) and the exhaust port (52).

[Fig. 3] Illustration of the exhaust passage (5)

FIG. 4 is an enlarged sectional view near the exhaust port (52).

FIG. 5 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 (2) ・ ・ ・ ・ Washing room (80) ・ ・ ・ ・ Fan (5) ・ ・ ・ ・ Exhaust passage

Claims (2)

[Claims] 1. The dishes housed in the washing chamber (2) are washed with water jetted from a nozzle, and when the dishes are dried, the humid air in the washing chamber (2) is exhausted by a fan (80) to an exhaust passage (5). ), A hanging wall formed over the entire width direction is provided on the ceiling surface in the vicinity of the downstream end of the exhaust passage (5) on the upstream side of the hanging wall. Dishwasher with a bottom surface of the exhaust passage (5) that is gradually inclined toward the upstream side. 2. An erecting wall formed over the entire width direction of the bottom surface of the exhaust passage (5), and the erecting wall is located on the downstream side of the hanging wall of the ceiling surface of the exhaust passage.
Dishwasher.