TR2022015787A2 - A DISHWASHER - Google Patents

Abstract

The invention relates to a dishwasher containing a flap system that allows the moisture in the washing chamber to be discharged out of the machine in a controlled manner.

Description

DESCRIPTION A DISHWASHER Technical Field The invention relates to a dishwasher that incorporates a flap system that allows moisture in the wash chamber to be released outside the machine in a controlled manner. State of the Art In dishwashers used today, a wash cycle is completed by successively completing the cold wash, main wash, rinsing, and drying steps. The drying step, one of the main steps in a dishwasher, aims to remove water droplets and debris remaining on the washed and cleaned loads through filtration and evaporation. At the beginning of the drying step, there is a high amount of moisture inside the machine, and the water evaporating from the loads during the drying step continually increases the moisture content inside. This high relative humidity air must be dehumidified in a controlled manner to retain evaporating water and prevent condensation in unwanted areas of the machine or on loads. A drying system based on the principle of exhausting high relative humidity air from a control volume is currently underway (Natural Dry). This system utilizes a chimney to exhaust the moist air. This chimney also removes the moisture generated during the cleaning process, resulting in energy loss. Furthermore, when the exhausted moisture encounters a cold surface, it condenses, causing deformation in undesirable areas of the machine or kitchen. The moist air exhausted through the chimney will condense on the user's countertops, walls, and furniture, eventually causing deformation. Explanation of Figures Figure 1: Representation of the inventive valve system in open position Figure 2: Representation of the inventive valve system in half-open position Figure 3: Representation of the inventive valve system in open position 7.3475 ( Figure 4a: Valve system water discharge opening: hole form Figure 4b: Valve system water discharge opening: slit form Element Numbers in the Figures 1. Dishwasher 2. Chimney opening 3. Valve box 4. Valve plate. Water inlet opening 6. Water discharge opening Brief Description of the Invention The valve system in question has been developed to carry the amount of moisture in the washing chamber out in a controlled manner. Thanks to this valve system, less moisture will be released from the cabin and there will be no wetness and humidity in the machine body. This will prevent possible insulation deformations and component failures. The continuous release of heat and moisture through the chimney opening on the machine will be prevented, thus reducing energy loss. Detailed Description of the Invention: The invention describes a system that consumes both low energy and is low-cost during the drying phase of a dishwasher that includes a chimney drying system. The invention provides air supply and controlled humid air discharge through a controlled air infiltration opening. In this system, hot and humid air inside the machine is discharged outside the machine through the chimney opening, and fresh air is supplied into the machine through the air infiltration opening. Heated air inside the machine rises and is exhausted through the chimney opening above, while fresh air is supplied through the infiltration opening, reducing the relative humidity inside the machine. and better drying performance is achieved. 7.3475 (The dishwasher in question includes a body, a washing drum in which the washing process takes place, located on the body, at least one spray element that provides water to the kitchenware, located on the washing drum, a heater that provides heating of the water sent to the dishes, and at least one chimney located near or on the ceiling of the washing drum, which ensures that the humid air provided by the hot water is removed from the kitchenware during the drying step. In the system and method in question, a flap system has been developed to partially or completely close the chimney for the controlled discharge of humid air. The purpose of this flap system is to keep the chimney open continuously in a full cycle (cold wash, main wash, rinsing and drying). The aim is to prevent the exit of humid air by completely or partially closing the opening during the main wash and rinse steps. This will prevent energy loss. The flap system was developed based on the principle of water buoyancy and does not require energy. The flap system consists of a box (3) placed under the chimney opening (2) (fan pocket hole), a plate (4) made of a material with a density less than water and placed inside the box, a water inlet opening (5) that allows water to enter the box and at the same time allows the plate (4) to rise, and a water discharge opening (6) located under the box that allows water to drain from the box. The flap plate (4) is made of a material that is not affected by detergent and temperature, preferably foam (styrofoam), more preferably polystyrene foam or polyurethane foam. The opening located under the box (6) allows water to drain from the box (3) during the drying phase. The opening (6) can have one or more holes, preferably in the form of a cone (Figure 4a), or one or more slits, preferably in the form of a wing (Figure 4b). When the cycle starts, water circulation begins inside the machine (1) and this circulation continues until the drying phase. During the circulation inside, water begins to fill the box (3), which we have placed under the chimney opening (2), through the water inlet opening (5), and the flap plate (4), located in its first position inside the box, begins to rise upwards with the buoyancy force of the water. When the box (3) is completely filled with water, the flap plate (4) comes to its second position to completely or partially close the front of the chimney opening (2). In this step, the humid air inside the machine is prevented from escaping through the chimney opening (2). The first position of the flap plate (4) is the position before water starts filling the box (3). The second position of the flap plate (4) is the position it reaches when the water filling process into the box (3) stops or when the plate (4) is prevented from rising further by a stopper. The stopper may be a tab located on at least one side parallel to the rising direction of the plate (4) and prevents the plate (4) from rising by means of a slot or hump structure in the box (3), or it may have a different configuration. When the drying step begins, the water inside the box is drained through the water discharge opening (6) located at the bottom of the box (3), the styrofoam goes down again and the front of the chimney opening (2) is opened. The water flow rate filling the box is equal to the flow rate discharged from the box. The valve box (3) is filled with wash water, but in another preferred application, the box can be continuously fed with mains water by a water line drawn directly from the water connection line into the box (3). If the box (3) is fed directly by a water line drawn from the water connection line, the flow problem is eliminated and the number of water discharge openings (6) can be increased accordingly, and by enlarging the opening, blockage due to dirt that may enter the box is prevented. The valve system can be used not only in machines with chimney drying systems, but also in machines with fans. Energy loss can be prevented in machines with fans by placing the valve system in front of the fan pocket opening. In a preferred application of the invention, the valve To prevent the plate (4) from coming out of the box (3), two stoppers are placed on the sides of the plate (4). 7.3475 ( The edge areas of the pool can be expanded in the form of an umbrella structure, thus allowing more water to fill the pool. TR TR TR TR TR TR TR TR TR TR TR TR TR TR