JPH04187137A - Electric dish washer - Google Patents

Abstract

PURPOSE:To reduce temperature and humidity of exhaust air without decrease of drying capacity for table-wares to bring a pleasant living environment in a kitchen or the like by providing a fan and an exhaust air path to discharge the air in the washing tank and arranging in the exhaust air path a heat- exchanger, in which a heat accumulator is contained. CONSTITUTION:An exhaust air path 16 having a discharge water pass 23 to discharge the steam in the washing tank 2 to the outside and circulate the dew to the washing tank 2 is arranged between the upper part of the front face of the body 1 and the washing tank 2. A heat-exchanger 21 is arranged at the rear part in the body 1. In this way, as the heat-exchanger 21 condensing the steam in the exhaust air is arranged at the rear part of the body 2 in the exhaust path 16, the moisture and temperature in the exhaust can be reduced, and as the heat-exchanger 21 is provided also with the faculty of balance weight, it supplies a pleasant living environment in a kitchen or others and further, it prevents the dish washer from tumbling.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a dishwasher for washing and drying dishes.

2. Description of the Related Art A conventional dishwasher has a structure as shown in FIG.

The configuration will be explained below with reference to FIG.

A washing tank 2 is installed inside the main body 1 of the dishwasher. A water level detection switch 3 is disposed above a drainage level detection chamber 5 communicating with the cleaning tank 2, and detects the water level in the cleaning tank 2 by raising the float 4.

A cleaning pump 6 rotationally driven by a cleaning pump motor 7 is disposed below the cleaning tank 2 . Washing pump 6
The cleaning water and rinse water filtered by the waste filter 8 disposed at the bottom of the cleaning tank 2 are sucked in and pressurized, and the nozzle 9
A and 9b are ejected to wash the dishes 11 placed in the dish baskets 10a and 10b. At this time, the cleaning water is heated to heater 1.
2.

In the above configuration, after the cleaning process is completed, a rinsing process is started, and after repeating water rinsing several times, heated rinsing is performed with hot water at about 70°C. The heating rinsing is to sterilize the tableware and to accelerate drying. When the heated rinse is completed, the rinse water is drained by a drain pump (not shown). After that, the drying process begins, and the fan 15 is driven by the fan motor 14 provided in the air supply path 13 to supply outside air into the washing tank 2, and the heater 12 is used to clean the dishes.
1 and the air temperature in the cleaning tank 2 are raised to evaporate water droplets adhering to the members in the cleaning tank 2 and the tableware 11. The air containing water vapor is then exhausted from the exhaust port 17 on the front surface of the main body 1 via the exhaust path 16.

Auxiliary legs 18 are disposed on the lower front surface of the main body 1 so as to be freely retractable. The auxiliary legs 18 are linked to the opening and closing of the door 19 and protrude toward the floor when the door is opened, so that when the weight of the dish baskets 10a and 10b loaded with dishes is applied to the open door 19, the rear of the dishwasher is This is to prevent floating and falling. Note that the figure shows the auxiliary leg 18 in a protruding state.

In addition, as another means for preventing falls, a balance lieet 2 made of concrete, for example, is installed at the rear of the main body 1.
Some have 0 (female) attached.

Problems to be Solved by the Invention In these conventional dishwashers, high-temperature water vapor is directly discharged outside the machine during drying, which increases indoor humidity and temperature, making the environment in the kitchen or other installation location unpleasant. I was doing it.

In addition, devices that discharge water vapor forward may cause discomfort as the exhaust air hits the body, and built-in or floor-mounted dishwashers may have the exhaust port close to the child's eye level. However, there was a risk of burns if a large amount of air was exhausted at once. This problem was solved by reducing the exhaust air volume, but this took a long time to dry and was one of the reasons why it took a long time to wash the dishes.

Additionally, in devices that discharge water vapor backwards or upwards, there is a problem in that the water vapor condenses on the rear wall or the bottom surface of the cabinet, causing wood to rot or become deformed by heat.

Furthermore, in large dishwashers, such as those for 12 people,
The combined weight of tableware 11 and tableware baskets 10a and 10b is approximately 2
It reached 0 kg and the tableware basket was 10a.

When the dishwasher 10b is pulled out onto the open door 19, the weight of the dishwasher causes the dishwasher to fall forward. This problem has been addressed by attaching auxiliary legs 18 that protrude toward the floor when the door is opened, and a balance weight 20 made of concrete.

As a result, the structure becomes complicated, which is one of the causes of increased costs.

The present invention solves the above problems by reducing the temperature and humidity of the exhaust gas discharged from the machine without impairing the drying performance of tableware, making the living environment such as the kitchen more comfortable, and The aim is to provide a dish dryer that eliminates the danger of

Means for Solving the Problems In order to achieve the above object, the dishwasher of the present invention includes an air supply path for supplying outside air into the washing tank, and an air supply means disposed in the air supply path. and an exhaust path for exhausting the air in the cleaning tank, and a heat exchanger in which a heat storage body is enclosed is disposed in the exhaust path.

Moreover, the heat exchanger is arranged at the rear part of the main body.

Function: The dishwasher of the present invention has the above-described configuration, and by disposing a heat exchanger containing a heat storage body in the exhaust path from the cleaning tank, water vapor in the exhaust gas discharged from the cleaning tank during the drying process can be removed. Since dew condenses on the surface of the heat exchanger and at the same time lowers the temperature of the exhaust gas, the temperature and humidity in the exhaust gas can be lowered.

Further, by disposing the heat exchanger containing the heat storage body in the rear part of the main body, the heat exchanger can also have the function of a running weight.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIG.

Incidentally, the same parts as those shown in the conventional example are given the same reference numerals, and the description thereof will be omitted.

An air supply path 13 for introducing outside air is provided between the rear surface of the main body 1 and the cleaning tank 2, and a fan 15 driven by a motor 14 for sucking outside air is provided inside the air supply path 13.

A space between the front upper part of the main body 1 and the cleaning tank 2 is provided to discharge water vapor in the cleaning tank 2 to the outside of the machine and to drain condensed water to the cleaning tank 2.
An exhaust passage 16 having a drainage passage 23 for refluxing water to
1 is arranged. There is a heat storage body 2 inside the heat exchanger 21.
2 is included. The heat storage body 22 is, for example, water to which an appropriate amount of salt as an antifreeze agent is added. Its weight varies depending on the amount of tableware as the rated value, but it is several kg.
To some extent.

In addition, although the exhaust port 17 is opened at the upper part of the front surface of the aircraft body in this embodiment, it may be opened at the rear surface or the upper surface.

In the above configuration, after finishing the cleaning process, rinsing process, and heating rinsing process and draining the rinse water, when the air containing water vapor in the cleaning tank 2 is exhausted by the fan 15, the temperature of the exhaust air is almost equal to room temperature. Heat is exchanged on the surface of the heat exchanger 21 , and the water vapor is condensed and returned to the cleaning tank 2 through the drain port 23 . Further, the exhaust gas that has undergone heat exchange and has become low temperature is discharged from the exhaust port 17.

Furthermore, the heat exchanger 21 weighs several kilograms and has the function of a balance weight by being disposed at the rear of the main body 1. Even if 10a and 10b are pulled out, the dishwasher will not fall over.

As described above, according to the dishwasher of the embodiment of the present invention, the heat exchanger 21 that condenses water vapor in the exhaust gas is connected to the exhaust path 16.
By placing the heat exchanger 21 at the rear of the main body 1, it is possible to reduce the moisture and temperature in the exhaust gas, and the heat exchanger 21 also functions as a balance weight, making living environments such as the kitchen more comfortable. This has the effect of eliminating the risk of the dishwasher tipping over.

In addition, since the configuration is extremely simple, it can be easily incorporated into a part of the exhaust path 16 of a conventional dishwasher, which has the effect of improving performance and safety at a low cost.

Effects of the Invention As is clear from the description of the embodiments above, according to the present invention, by disposing a heat exchanger containing a heat storage body in the exhaust path from the cleaning tank, the air is removed from the cleaning tank during the drying process. The water vapor in the exhaust gas is condensed on the surface of the heat exchanger, and at the same time the temperature of the exhaust gas is lowered, making it possible to lower the temperature and humidity of the exhaust gas, making living environments such as kitchens more comfortable. At the same time, the risk of burns can be eliminated, and since the exhaust air volume can be increased, the drying time can also be shortened. Moreover, since the configuration is extremely simple, an increase in the number of parts and costs can be kept to a minimum.Furthermore, by placing the heat exchanger at the rear of the main body,
Since the heat exchanger also has the function of a balance weight, it is possible to eliminate the risk of the dishwasher tipping over.

In this way, it is possible to provide a dishwasher that is less expensive and has excellent performance and safety.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a dishwasher according to an embodiment of the present invention, and FIG. 2 is a side sectional view of a conventional dishwasher. 1... Dishwasher main body (body), 2...
・Cleaning tank, 13...Air supply route, ]4...
・Motor (air supply means), 15...Fan (air supply means), 16...Exhaust route, 21...Heat exchanger, 22...Heat storage body.

Claims (2)

[Claims] (1) An air supply path for supplying outside air into the cleaning tank, an air supply means disposed in the air supply path, and an exhaust path for exhausting the air in the cleaning tank, and the exhaust path A dishwasher equipped with a heat exchanger with a heating element enclosed inside. (2) Claim 1 in which the heat exchanger is disposed at the rear part of the main body.
Dishwasher as listed.