JPH06133913A - Tableware washing and drying machine - Google Patents

Abstract

PURPOSE:To provide a tableware washing and drying machine which does not take a time till washing and which ensures a low running cost. CONSTITUTION:A water at appropriate temp. is supplied from a hot water supply device 39 to a buffer part 31 in a chamber 30, and a detergent is mixed therewith to prepare a washing water, and after the rinse, the washed tableware, etc., are dried with the heat of the tableware, etc., accumulated at the rinse and the action of the convection generated by an exhaust fan 36.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher having a dishwashing function and a subsequent drying function.

[0002]

2. Description of the Related Art A conventional dishwasher / dryer is shown in FIG. This conventional dishwasher / dryer includes a buffer unit 2 in a cabinet 1, a dish basket 3 for placing dirty dishes, a water supply valve 4 for supplying water to the buffer unit 2, a washing pump 5 for circulating washing water, A washing nozzle 6 for evenly spraying the washing water sent out by the washing pump 5 on the dishes in the dish basket 3, a drainage pump 7 for discharging the washing water after washing to the outside of the cabinet 1, and a washing effect temperature (50 A heater 8 for heating up to 60 ° C.), a temperature sensor 9 for detecting a heating temperature, an exhaust fan 10 for discharging moisture during drying,
It is composed of an inlet 11, a filter 12, and a control unit 13, and its function is to open the water supply valve 4, supply water or hot water from the water supply path, store an appropriate amount of water in the buffer section 2, and then close the water supply valve 4. Detergent is mixed with this water to prepare washing water, and this washing water is heated to a proper temperature by the heater 8, the washing pump 5 is driven, and the washing water is sprayed from the washing nozzle 6 to wash dishes. After cleaning, the cleaning water in the buffer section 2 is drained to the outside of the cabinet 1 by the drainage pump 7, and after the completion of draining, the water supply valve 4 is opened to store water or hot water in the buffer section 2, the water supply valve 4 is closed, and the cleaning pump 5 is restarted. To perform circulation rinse. This kind of pool rinsing is repeated several times, and after rinsing hot water is drained, the heater 8 is driven to heat the inside of the cabinet 1 to dry the tableware and the moisture is discharged by the exhaust fan 10. is there.

[0003]

However, the above conventional example has the following drawbacks. a. It takes time to heat the water supplied into the buffer unit 2 with the heater 8 to produce cleaning water. b. Since the heater 8 is driven during drying, running costs are high.

The object of the present invention is in a dishwasher,
The object is to eliminate the above disadvantages a and b.

[0005]

The constitution of the present invention is as follows. A buffer part is formed at the bottom of the refrigerator and a cleaning nozzle with a cleaning pump and a dish basket are arranged above the buffer part, a hot water supply device that connects the hot water supply line to the buffer part is provided, and The drainage line was branched via a three-way valve, an exhaust port was provided at the top of the cabinet, and an exhaust fan was attached to this exhaust port, and a buffer drainage line with a drainage pump for draining from the buffer section was provided. That is, a hot water supply temperature sensor is attached to the hot water supply line, and if the water temperature detected by this hot water supply temperature sensor is below the set temperature, the three-way valve is switched to the drain line side, and if it is above the set temperature, it is placed on the buffer side. By switching and supplying hot water, the hot water is stored in the buffer section to create wash water and rinse water, and the wash pump is driven to wash and rinse. Controls washing After performing drainage from the buffer unit drives the drain pump in the drying operation, dishwasher, characterized in that, provided with a control circuit for driving the exhaust fan.

[0006]

[Function] First, at the start of hot water supply, the three-way valve is opened on the drain line side to prevent cold water at the rising from flowing into the buffer section, and when the hot water temperature sensor detects the set temperature, the three-way valve is switched to the inside Supply hot water to the buffer section. When an appropriate amount of hot water is collected, close the three-way valve, mix the hot water in the buffer with a detergent to make wash water, and drive the wash pump. As a result, washing water is vigorously sprayed from the washing nozzle toward the dish basket to wash the dishes. After washing, drain the wash water in the buffer to the outside of the storage by the drainage pump, open the three-way valve on the drain line side after drainage, and raise the temperature of the hot water supplied to a temperature with a high rinsing effect (50-60 ° C). When is detected by the hot water temperature sensor, the three-way valve is switched to the inside of the refrigerator again to supply hot water to the buffer section. When an appropriate amount of hot water is collected, the three-way valve is closed, the washing pump is driven again to perform rinsing, and after this rinsing, the drainage pump is driven to drain water. By repeatedly performing such circulation pool rinsing and washing, the dishes are dried by the heat accumulated in the dishes and the convection inside the cabinet by the exhaust fan.

[0007]

EXAMPLE FIG. 1 shows an example of the present invention. 30 is a cabinet for cleaning and drying, 31 is a buffer section formed on the bottom of the cabinet 30, 32
Is a cleaning nozzle, 33 is a cleaning pump for spraying the cleaning water in the buffer section 31 from the cleaning nozzle 32, 34 is a dish basket, 35
Is an exhaust port provided in the upper part of the inside of the refrigerator 30, 36 is an exhaust fan, 37 is a buffer drain line for draining the washing water in the buffer section 31, 38 is a drain pump, 39 is a water heater, and 40 is a hot water outlet line. The line 40 is connected to the buffer unit 31. 41 is a drain line branched from the hot water outlet line 40 via a three-way valve 42, 43 is a hot water supply temperature sensor for detecting the temperature of the water flowing in the hot water outlet line 40, 44 is a supply port, 45 is a filter, 46 is a water supply line , 47 are control units to perform the following control.

First, when hot water supply is started, the three-way valve 42 is opened to the drain line 41 side to prevent cold water at the rising time from flowing into the buffer section. When the hot water supply temperature sensor 43 detects the set temperature, the three-way valve 42 is turned on. The inside of the refrigerator 30 is switched to, and hot water is supplied to the buffer unit 31. When an appropriate amount of hot water is collected, the three-way valve 42 is closed, detergent is mixed with the hot water in the buffer section 31 to make wash water, and the wash pump 33 is driven to drive the wash nozzle 3
Wash the dishes while spraying wash water from 2. After the washing, the washing water of the buffer part 31 is drained to the outside of the refrigerator 30 by the drainage pump 38, and after the drainage is completed, the three-way valve 42 is opened to the drainage line 41 side, and the water heater 39 is driven to obtain a temperature (50- 60 ° C)
Until the temperature reaches, the hot water is drained, and when the hot water supply temperature sensor 43 detects the set temperature, the three-way valve 42 is switched to the inside of the refrigerator 30 again to supply hot water to the buffer unit 31. When an appropriate amount of hot water is collected, the three-way valve 42 is closed, the washing pump 33 is driven again to perform rinsing and washing, and drainage is performed in the same manner as for washing. By performing such a circulation pool rinsing several times, the tableware is dried by the heat accumulated in the tableware and the convection in the refrigerator 30 by the exhaust fan 36.

[0009]

The effects of the present invention are as follows. a. Since appropriate temperature water is supplied from the water heater to the buffer portion and stored therein, it takes less time to move to the cleaning step as compared with the conventional heating method using a heater. b. Running costs can be reduced by eliminating the heater heating method. c. Since the auxiliary heating time by the heater is not required, the cleaning and rinsing time can be shortened. d. During rinsing, the water temperature is adjusted so that the rinsing effect is high, so it is efficient. e. During the washing and rinsing, the heat accumulated in the dishes and the convection action evaporates the moisture from the surface of the dishes and the exhaust fan discharges this moisture to the outside of the refrigerator. , There is no heat deterioration of the tableware.

[Brief description of drawings]

FIG. 1 is an explanatory view of a dishwasher / dryer according to the present invention.

FIG. 2 is an explanatory view of a conventional dishwasher / dryer.

[Explanation of symbols]

 30 Storage 31 Buffer part 32 Washing nozzle 33 Washing pump 34 Dish basket 35 Exhaust port 36 Exhaust fan 37 Buffer drain line 38 Drain pump 39 Water heater 40 Hot water line 41 Drain line 42 Three-way valve 43 Hot water temperature sensor 44 Inlet port 45 Filter 46 Water supply Line 47 control unit

Claims (1)

[Claims] 1. A buffer part is formed at the bottom of the refrigerator, a cleaning nozzle with a cleaning pump and a dish basket are arranged above the buffer part, and a water heater having a hot water line connected to the buffer part is provided. , A drain line was branched from the hot water line via a three-way valve, an exhaust port was provided at the top of the cabinet, and an exhaust fan was attached to this exhaust port, with a drain pump for draining from the buffer section. A buffer drainage line was provided, a hot water supply temperature sensor was attached to the hot water supply line, and if the water temperature detected by this hot water supply temperature sensor was below the set temperature, the three-way valve was switched to the drain line side and above the set temperature. Switches to the buffer side to supply hot water, and collects hot water in the buffer section to generate wash water and rinse water, and drives the wash pump. Washing and rinsing controls Te After performing drainage from the buffer unit drives the drain pump in the drying operation, dishwasher, characterized in that, provided with a control circuit for driving the exhaust fan.