JPS60168428A - Tablewear washer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a dishwasher for general household or commercial use.

BACKGROUND ART Conventional examples and their problems Traditionally, dishwashers used for home or commercial use spray warm water from a jet nozzle onto tableware to wash them. In particular, washing oil stains from tableware requires hot water at a certain temperature of 2 degrees or higher (for example, 60C or higher), and for this reason, dishwashers have traditionally been equipped with a water boiling function. Although it used to be common, recently, with the spread of hot water supply equipment, dishwashers without a water boiling function are also being sold. However, when hot water is supplied from a water heater to a dishwasher, the temperature of the hot water that collects in the pipes drops, and low-temperature hot water is supplied to the dishwasher, which may not provide sufficient cleaning performance. was there.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a dishwasher with stable performance by improving the problems in the prior art.

Structure of the Invention The present invention detects the temperature of hot water supplied from a water heater via a water supply solenoid valve using a temperature sensor, and when hot water lower than a certain temperature is supplied, the process of water supply, child washing, and drainage is repeated. The operation is controlled so that the main washing step is started when hot water at a temperature higher than a certain temperature is supplied.

Explanation of real sister example 3,,,-.

The present invention will be explained below.

Hot water is supplied from a water supply solenoid valve 2 installed above the cleaning tank 1, and when a certain amount of water is supplied, the water supply level is detected by a pressure sensitive switch 3 and the water supply is stopped, and at the same time the cleaning pump 4 is started and the cleaning water is supplied. Washing water is sprayed from the nozzle 6 under pressure and circulation to pre-wash the tableware 7 placed in the tableware basket 6. After the pre-washing is completed, the washing pump 4 stops and the drain pump 8 starts operating to drain the washing water to the outside of the machine. After draining,
Water is supplied again and the main washing is performed in the same manner as the pre-washing process.

In addition, general detergent is automatically added during the main washing process. After the main washing step is completed, rinsing is performed in the same manner as the pre-wash single washing, and the series of steps is completed. The dishwasher's electric water supply valve 2 and the water heater are connected to the water pipe 9. Since the pipe is connected to the faucet 10, etc., when the dishwasher is not operated and the temperature of the hot water stagnant in the pipe drops and low-temperature hot water is supplied, the pipe is installed at the bottom 11 of the washing tank 1. The water temperature is detected by the acoustic sensor 12,
When the water temperature is low, the pre-washing process, that is, water supply, sub-washing and drainage, is repeated until hot water above a certain temperature is supplied into the washing tank 1, and when hot water above a certain temperature is supplied. Upon detection by the temperature sensor 12, the process proceeds to the next step, that is, the main washing step, and the series of cycle operations described above are performed.

Effects of the Invention As described above, the dishwasher of the present invention can always carry out the main washing action with hot water above a certain temperature, so stable performance can be obtained, and at the same time it has great practical effects, and at the same time When the water is low, pre-washing is repeated, which improves cleaning performance.

[Brief explanation of drawings]

The drawing is a side sectional view of a dishwasher according to an embodiment of the present invention. 4...Washing pump, 5...Nozzle, 7
...Tableware, 12...Temperature sensor.

Claims (1)

[Claims] Water supply - Water supply - One wash, one drain, one water supply, one rinse and one drain, and when the temperature of the hot water supplied via the water supply solenoid valve is below a certain temperature history, the above water supply - A dishwasher equipped with a temperature sensor that repeatedly performs the process of washing and draining, and controls the process to proceed to the next process when hot water above a certain temperature is supplied.