JPH04364825A - Dish washer - Google Patents

Abstract

PURPOSE:To prevent generation of putrid smell in a dish washer by a method wherein and ultraviolet rays light is installed to sterilize bacteria remaining on dishes and to delay decomposition of remaining food. CONSTITUTION:An ultraviolet rays light 7 is installed in a washing tank 1 to irradiate the inside of the cleansing tank 1, and further, a rack 6 is provided on which dishes are so arranged that ultraviolet rays of the ultraviolet rays light 7 can irradiate directly food remaining on a bottom part 4 of the washing tank 1.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher equipped with an ultraviolet lamp.

0002

BACKGROUND OF THE INVENTION In recent years, there has been an increasing demand for dishwashers to remove rotten odors from leftover food.

The structure of a conventional dishwasher will be explained with reference to FIG. As shown in the figure, there is a washing tank 1 that stores and washes dishes, a water supply mechanism 2 that connects to the washing tank 1 and supplies water into the washing tank 1, and a washing machine that sprays water into the washing tank 1 to wash the dishes. It is comprised of a mechanism 3, a drainage mechanism 5 for discharging water from the bottom 4 of the washing tank 1 to the outside of the machine, and a rack 6 for arranging dishes in the washing tank.

[0004] To explain the operation of the above structure, first, dishes to be washed are placed in the washing tank 1 using the rack 6. When the dishwasher starts operating, water is supplied from the water supply mechanism 2 to the washing tank 1, and the water accumulates in the bottom 4 of the washing tank 1. Next, the washing mechanism 3 sprinkles water accumulated in the bottom 4 of the washing tank 1 into the washing tank 1 to wash the dishes. After the cleaning is completed, the drainage mechanism 5 is operated to perform a drainage process in which water in the cleaning tank 1 is discharged to the outside of the machine. At this time, food remains remain in the cleaning tank 1.

[0005]

Problems to be Solved by the Invention In a dishwasher having such a conventional structure, bacteria remain on the dishes after washing them. In addition, bacteria propagate on the food scraps remaining in the cleaning tank after cleaning, causing the food scraps to rot and produce a putrid odor, which is unpleasant for the user and is a hygiene problem.

[0006] The present invention solves the above-mentioned problems and aims to provide a dishwasher that prevents the generation of putrid odor.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a washing tank for storing and washing tableware, a water supply mechanism connected to the washing tank and sending water into the washing tank, and a washing tank for storing and washing tableware. a washing mechanism for spraying water in a tank to wash dishes; and a drainage mechanism for discharging water in the washing tank to the outside of the machine; the washing tank is provided with an ultraviolet lamp for irradiating the inside of the washing tank; A rack is provided on which tableware is placed so that the ultraviolet rays of the food remaining in the washing tank are directly irradiated with the food scraps.

[0008]

[Operation] With the above-described structure, the present invention can sterilize bacteria remaining on dishes after washing by irradiating the inside of the washing tank with ultraviolet rays. In addition, by irradiating bacteria on food scraps with ultraviolet rays, the induction period during bacterial growth is extended, and by delaying bacterial growth on food scraps, it is possible to prevent the occurrence of putrid odors.

[0009]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIG. Note that the same components as in the conventional example are designated by the same reference numerals, and explanations thereof will be omitted.

As shown in the figure, an ultraviolet lamp 7 for irradiating ultraviolet rays is provided in the cleaning tank 1, and a cutout 8 is provided in the rack 6 so that the bottom 4 of the cleaning tank 1 can be irradiated with ultraviolet rays.

The operation of the above configuration will be explained. When the dishwasher starts operating, water is supplied from the water supply mechanism 2 to the washing tank 1, and the water accumulates in the bottom 4 of the washing tank 1. Next, the cleaning mechanism 3 drains the water accumulated at the bottom 4 of the cleaning tank 1 into the cleaning tank 1.
Sprinkle water inside and wash dishes. After the cleaning process is completed, the drainage mechanism 5 is operated to perform a drainage process in which water in the cleaning tank 1 is discharged to the outside of the machine. When the operation is finished, the ultraviolet light from the ultraviolet lamp 7 provided in the washing tank irradiates the dishes placed on the rack 6 to sterilize bacteria on the dishes. Further, the food waste on the bottom 4 of the cleaning tank 1 is also irradiated through the cutout 8 of the rack 6 to delay spoilage of the food waste.

As described above, according to the embodiment of the present invention, by providing an ultraviolet lamp in the washing tank, bacteria remaining on the tableware are sterilized by ultraviolet rays. In addition, the food scraps remaining at the bottom of the cleaning tank are directly irradiated with ultraviolet rays, which extends the induction period for bacterial growth and delays bacterial growth on the food scraps, producing a putrid odor, as shown in Figure 3. We can provide a sanitary dishwasher that prevents.

[0013]

As is clear from the above embodiments, according to the present invention, ultraviolet rays can be irradiated into the washing tank by installing an ultraviolet lamp, and dishes can be adjusted so that the ultraviolet rays are directly irradiated onto the leftover food at the bottom of the washing tank. By installing a rack to place the dishes, any remaining bacteria on the dishes after washing can be sterilized evenly, and since the leftover food remaining at the bottom of the washing tank is directly irradiated with ultraviolet rays, the induction period for bacterial growth can be extended. To provide a sanitary dishwasher that does not generate rotten odor by delaying bacterial growth on leftover food.

[Brief explanation of drawings]

FIG. 1: (a) A cross-sectional view of a dishwasher according to an embodiment of the present invention. (b) A top view of the same rack.

[Figure 2] Chart of spoilage delay characteristics of leftover food caused by ultraviolet irradiation

[Figure 3] (a) Cross-sectional view of a conventional dishwasher (b) Top view of the same rack

[Explanation of symbols]

1　Cleaning tank 2 Water supply mechanism 3. Cleaning mechanism 4 Bottom 5 Drainage mechanism 6 Rack 7 Ultraviolet lamp

Claims (1)

[Claims] 1. A washing tank for storing and washing tableware, a water supply mechanism connected to the washing tank and sending water into the washing tank, a washing mechanism for sprinkling water on the washing tank to wash the tableware, and the washing tank. The washing tank is equipped with a drainage mechanism for discharging the water inside the machine to the outside, and the washing tank is provided with an ultraviolet lamp that irradiates the inside of the washing tank, and the dishes are placed so that the leftover food in the washing tank is directly irradiated with the ultraviolet rays of the ultraviolet lamp. Dishwasher with racks for placement.