JPH02185224A - Dish washer - Google Patents

Abstract

PURPOSE:To easily simplify a structure to execute washing and drying and reduce a cost by conducting a pressurized wind with the no-load rotation of a feeding pumpt from a fountain blade into a washing room and drying a dish. CONSTITUTION:A hallow conduit shaft 21 is fixedly provided on the approximate center of the bottom part of a washing tank 1 of a washing room 6, a fountain blade 23 is attached to the conduct shaft 21 upper edge, and a feeding pump 25 is connected to the conduit shaft 21 lower edge. An suction pipe 62 is connected through an inlet valve 61 having a drying solenoid 60 to a water suction pipe 32, the water in a reservoir 14 is drained, thereafter, the suction valve 61 is opened, an air is fed through the suction pipe 62 and water suction pipe 32 to the feeding pump 25, the pressurized wind from the feeding pump 25 is fed into the washing room 6, and the dish is dried. Consequently, the simplification of a blowing mechanism, the cost reduction, etc., can be easily realized, and since the drying wind is blown off from the fountain blade, a drying unevenness can be eliminated, and even a drying time can be shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a dishwasher that sprays warm water mixed with detergent onto dishes to remove stains, and also dries them with warm air after rinsing.

``Conventional technology'' Conventionally, there was a technology in which a fountain blade was rotatably installed at the bottom of the washing chamber where dishes were placed, a water storage tank was formed at the bottom of the washing chamber, and the water in the tank was blown up from the fountain blade to wash the dishes. .

"Problems to be Solved by the Invention" In the prior art, when drying washed dishes in a washing chamber in which fountain blades are arranged, it was necessary to provide a special blower mechanism to send air into the washing chamber. In addition, there have been problems in that it is not easy to simplify the structure for drying and reduce costs.

``Means for Solving the Problems'' However, the present invention provides a dishwasher in which a fountain blade is installed inside a washing chamber in which dishes are placed, in which pressurized air is guided from the fountain blade into the washing chamber by idling a water pump. The apparatus is characterized in that it is configured to dry the tableware by drying the tableware.

``Function'' Therefore, since the air for drying the dishes is sent from the water pump into the washing chamber, it is possible to simplify the air blowing mechanism and reduce costs, and at the same time, the drying air is blown into the washing chamber from the fountain blade. Therefore, it is possible to easily improve drying efficiency and shorten the time required for drying by eliminating drying unevenness.

"Example" Hereinafter, an example of the present invention will be described in detail based on the drawings. 1st
The figure is a cross-sectional side view, showing a main body case (2) made of synthetic resin that forms the cleaning tank (1), and side covers (3) that are fixed to the rear and left and right sides of the main case (2). , a lid cover (5) which is an upper lid forming a door with a single plate-shaped body having lattice-shaped protrusions (4) on the inner surface of the upper surface, and a lid cover (5) on the upper surface and the front surface. by extending the washing tank (1
) and each cover (31f51 creates a square box-shaped cleaning chamber (
6), the lid cover (5) can be opened and closed freely around the support shaft (7) on the rear edge of the upper surface, and a shelf for storing dishes is formed through the guide rails (8) on both sides of the washing tank (1). shaped body (9
) should be installed so that they can be freely accessed and removed.

In addition, a water supply port (10) is opened at the bottom of the cleaning tank (1),
A water supply valve (12) having a water supply solenoid (11) is provided at the water supply port (lO), and the water supply port (lO) is connected via the valve (12) to a water supply hose (13) that communicates with the water supply. The valve (12) is opened and closed to supply an appropriate amount of water into the cleaning tank (11).

In addition, a water storage tank (14) is formed at the bottom of the cleaning tank (1), a water intake case (15) is fixedly installed at the bottom of the tank (14), and the tank (14) and water intake case (15) are connected to each other to prevent swirling. The tank (16) communicates with the tank (
14) is equipped with a heater (17), and a spring (1
Attach the drawer stand (19) to be removed by step 8), place the removable dust case (20) on the drawer stand (19), and attach the dust case (20) to the upper surface of the tank (14) so that it can be taken out and put in freely. It is configured to collect dust by

In addition, a hollow water guide shaft (21
), a fountain blade (23) having a plurality of injection nozzles (22)... is rotatably attached to the upper end of the water guiding shaft (21), and a water pump (25) has a built-in water blade (24). is installed on the lower surface side of the bottom of the cleaning tank (1), the forward rotation discharge port (26) of the pump (25) is connected in communication with the lower end of the water guide shaft (21), and the reverse rotation discharge port (27) of the pump (25) is connected in communication with the lower end of the water guiding shaft (21). ) and a check valve body (30) to the drain hose (29) connected to the sewer.
and one that connects the drainage vibrator (28) via a secondary side drainage pipe (31), and connects a water suction pipe (32) communicating with the water intake case (15) to the water suction side of the water pump (25). The forward rotation of the water pump (25) sends the water in the tank (14) from the normal rotation discharge port (26) into the cleaning chamber (6), while the reverse rotation of the water pump (25) causes the water in the tank (14) to flow out of the tank (14). Water reversing outlet (27)
It is configured so that it is discharged from the water to the sewer.

In addition, a control box (
33), and a start switch (34), stop switch (35), door open switch (36), etc. are installed.

Furthermore, as is clear from Figure 2, a drainage vibrator (28
) is provided on the check valve body (30) with a check valve (38) that closes the outlet side of the water supply blade (
A drain valve (39) that closes when rotated in the forward direction and opens when rotated in the reverse direction is provided at the reverse discharge outlet (27), and the drain valve (28) intermediate and the water suction vibe (32) intermediate are connected to these pipes f281 f32. ] is connected by a return flow vibrator (40) with a diameter smaller than that of the fountain blade (23
), and a drain vibrator (28) is connected to the reverse discharge port (27) of the water pump (25) via a drain valve (39).
), a check valve body (30) is provided on the drain vibrator (28), and the drain vibrator (28) between the drain valve (39) and the reverse valve body (30) is connected to the water pump (
25) is connected to the water absorption side.

Furthermore, as is clear from FIG. 3, the dust case (2
A plurality of water leak holes (41)... are opened in the head holder of the dust case (20), and the dust case (20) is inserted into the notch (42) of the dust case (20) against the spring (18). a lock arm (43) that supports the device in the mounting position; and the notch (42).
A dust removal mechanism (45) having a dust removal ratio solenoid (44) for escaping the lock arm (43) from the water pump (25) is provided.
), a dust case (20) for receiving washed-off dust is installed in and out of the washing chamber (6), and the dust case (20) is cleaned after the washing operation and before the rinsing operation is finished. The chamber (6) is configured to be automatically moved outward.

Further, a magnet (46) is embedded and fixed in the dust case (20), and the lock arm (43) is attached to the notch (4).
A head sensor (47) such as a reed switch operated by a magnet (46) is fixedly supported by the main body case (2) at the mounting position where the sensor (47) is inserted into the dust case (20). When the attachment is detected, the water supply valve (12) and water pump (25) are operated based on the detection result of this sensor (47), and a dust case ( A sensor (47) is provided to perform the water supply cleaning operation only when the cleaning tank (20) is attached, and the sensor (47) is attached to the main body case (2) side away from the cleaning tank (11).

The hook (48)... is integrally formed, and the part (49) is rotatably fitted and supported on the outer periphery of the six shafts (21), and the part (49) is rotatably fitted and supported on the upper surface side of the fountain blade (23) facing the boss part (49). A removable injection nozzle is provided at approximately the center of the fountain blade (23), which forms a thin ring groove (50) and faces the boss portion (49).
22), and when removing the fountain blade (23), the ring groove (
50) to form an opening, or remove the central nozzle (22) to form an opening, insert a jig through the opening, and remove the hook (48).
Fountain blades (23) communicated with the discharge port (26) of 25)
is rotatably attached by a hook (48) which is an engaging means.

Furthermore, as is clear from FIGS. 4 and 5, a cleaning motor (51) rotates the water pump (25) in forward and reverse directions.
and a wing portion (24a) which is adhesively fixed in one direction.
) and a disc portion (24b), a shaft hole (53) is formed in the detail (52) of the water supply blade (24), and a protrusion ring (54) for preventing removal and a key (55) are inserted into the shaft hole ( 53) It is provided inside.

Further, the motor (51) is provided with a rotating shaft (56) that is inserted into the shaft hole (53), and the key (55) is engaged with the ring groove (57) into which the protruding ring (54) is inserted. keyway (
58) is formed on the rotating shaft (56), and the shaft portion (
52) A spring (59) is elastically wound around the outer periphery, and the shaft part (
52) Wrap a spring (59) around the outer circumference, elastically fix the shaft (52) of the water supply blade (24) to the rotation shaft (56) to be inserted, and attach the water supply blade (24) to the rotation shaft (56). Provide fixed support.

Furthermore, as is clear from Fig. 4, the dry solenoid (
The intake vibrator (62) is connected to the water intake pipe (32) through the intake valve (61) having Vibrator (62) and water absorption pipe (32)
It sucks air into the water pump (25) through the water pump (25), and sends pressurized air from the water pump (25) into the cleaning chamber (6) through the normal rotation discharge port (26) and the fountain blade (23). When the water pump (25) is idle, pressure air is introduced from the fountain blade (23) into the washing chamber (6) to dry the dishes.

Further, an air blowing fan (63) is provided on the other end side of the rotating shaft (56) of the motor (51), and the fan (63) sends outside air to the intake vibe (62).
) is configured to assist the ventilation action.

Furthermore, as is clear from FIG. 6, there is also a lock body (67) that slides in and out of the notch (66) of the lid cover (5) through the bottle (64) and the elongated hole (65), and the output gear. (68a) and an auto-lock motor (68) that slides the lock body (67) back and forth via the rack gear (68bl).
) and an advance/exit switch +691 (70) for controlling the motor (68) in forward and reverse directions, and the lock body (67) is inserted into the notch (66).
) to fix and support the lid cover (5) in the closed position, and the lid cover (5) is a door for loading and unloading tableware.
The lock body (
67), and the lock body (67) is configured to be released by operating the door open switch (36) or turning off the power.

Furthermore, as is clear from FIG. 7, a cleaning circuit (72) configured with a microcomputer is provided, and each of the switches (34) to (361+691 +701) and the head sensor (47) are connected to the circuit (72). With,
Each of the solenoids (11) (441 ('60) is output connected to the circuit (72).
The sensor (47) can also be installed at a position to detect the operation of 4).

The heater (17) is output-connected to the circuit (72), and AC output and half-wave rectified output are selectively used as power sources for the heater (17) internally located in the cleaning chamber (6). The cleaning motor (51) is connected via the forward and reverse circuit (751 (76)), and the forward and reverse circuit (77
The auto-lock motor (68) is output connected to the circuit (72) through the circuit 1 (781), so that the washing, rinsing and drying of dishes can be continuously and automatically performed.

(6), attach the dust case (17) to the specified position of the main body case (2), and press the start switch (34).
The water supply cleaning operation is started by operating the water supply circuit (73
) The water in the tank (14) is heated by a heater (17) which is continuously operated via a heater (17).

Then, by forward rotation of the water pump (25), the tank (
14) is sent to the fountain blade (23), and the water from the injection nozzle (
Water is jetted upwards from the washing chamber (6) from the washing chamber (6), and the jetting force of the water rotates the blades (23), and the jetted water hits the dishes and washes away the dirt.
The water that has splashed up to the ceiling in step 6) falls almost directly below from the surface of the protrusion (4), washing away the dirt on the tableware from the top side as well.

In addition, the sewage that has fallen to the bottom of the cleaning tank (1) is removed from the dust case (2).
0) and returns to the tank (I4), where the dust is collected and only water is circulated, washing the dishes for a certain period of time.

Furthermore, when the cleaning time has elapsed, the water pump (25)
is rotated in the reverse direction to discharge the dirty water from the tank (14), the water supply valve (12) is opened to supply new water, and the water supply pump (25) is rotated in the forward direction to perform the first rinsing. Further, when the first rinsing operation is completed after a certain period of time, the dust removal solenoid (44) is activated and the dust case (20) is moved to the outside of the washing water circulation path by the spring (18) as shown in Fig. 3. While waiting, the water in the tank 4) is replaced in the same manner as the first rinsing operation, and the second rinsing operation and the third rinsing operation are performed.

When the rinsing operation is completed, all the water in the tank (14) is drained, the heater (17) is intermittently operated via the half-wave rectifier circuit (74), and the drying solenoid (
60) opens the intake valve (61), runs the water pump (25) idly, and sends pressurized air into the cleaning chamber (6) through the normal rotation discharge port (26) and the fountain blade (23). , the dishes are dried by air heated by a heater (17).

Furthermore, as shown in the flowchart of FIG. 9, when the stop switch [35] is operated or the power is turned off,
Similar to operating the door open switch (36), the exit switch (
Auto lock motor (68) so that 70) is turned on
The lock body (67) is released from the notch (66) of the lid cover (5), and the start switch (
34) When the above cleaning operation is performed by operation, the auto-lock motor (68) is operated so that the advance switch (69) is turned on, and the notch (66) of the lid cover (5) is turned on.
) to fix and support the lid cover 15) in the closed position, thereby preventing the lid cover (5) from opening during cleaning.

"Effects of the Invention" As is clear from the above embodiments, the present invention provides a dishwasher in which a fountain blade (23) is installed inside a washing chamber (6) in which dishes are placed, and the water pump (25) is operated idly to generate pressure. The structure is such that air is directed from the fountain blade (23) into the washing chamber (6) to dry the dishes, and the air for drying the dishes is directed from the water pump (25) into the washing room (6).
Since the drying air is blown into the washing chamber (6) from the fountain blades (23), it is possible to simplify the air blowing mechanism and reduce costs. This has practical effects such as improving efficiency and shortening the time required for drying.

[Brief explanation of the drawing]

Fig. 1 is a sectional side view showing an embodiment of the present invention, Fig. 2 is an explanatory diagram of a water pump, Fig. 3 is an explanatory diagram of a dust case, and Fig. 4 is an explanatory diagram of a fountain blade and a water pump. Figure 5 is an exploded view of the water supply blade, Figure 6 is an explanatory diagram of the interlock mechanism,
FIG. 7 is a control circuit diagram, and FIGS. 8 and 9 are flowcharts. (6)... Washing room (23
)... Fountain carrier plate (25)... Water pump

Claims (1)

[Claims] A dishwasher in which a fountain blade is installed inside a washing chamber in which dishes are placed, characterized in that the tableware is dried by directing pressurized air from the fountain blade into the washing chamber by idling a water pump. washing machine.