DEFROST MANAGEMENT SYSTEM FOR REFRIGERATORS AND FREEZERS

Abstract

The invention relates to a defrost management system used in freezers and refrigerators that defrost with hot gas, which prevents the air temperature inside the cabinet from rising during the hot gas defrosting process and protects the products displayed inside from the effects of temperature differences.

Description

1 TARIFF DEFROST MANAGEMENT SYSTEM FOR REFRIGERATORS AND FREEZERS Technical Area 5 The invention is used in freezers and refrigerators that defrost using hot gas. It is related to the defrost management system. The invention specifically addresses the issue of refrigerator interior air pressure (10°C) during defrosting with hot gas. the rise in temperature and the temperature difference between the products displayed inside the cabinet It is related to a defrost management system that prevents it from being affected. State of the Art Cold consumer goods and foods are sold to the consumer at the appropriate temperature and freshness. stored at specific temperatures in refrigerators and freezers for serving. It is displayed by being exhibited. In display type freezers and refrigerators, the cooling process takes place at -20°C. The refrigerant sent to the evaporator at certain temperatures, after a while, the evaporator this leads to the formation of frost or ice on the surface and negatively affects heat transfer. This causes it to be affected. In current applications, display type coolers and To prevent this situation in freezers, they should be checked at certain intervals. Defrosting is being performed. 25 The defrosting applied in display-type refrigerator and freezer cabinets in the current technology One of the methods is defrosting with hot gas. Defrosting with hot gas (removing ice) During the defrosting process, the air temperature inside the cabinet increases. However, the cabinet Due to the temperature difference between the products inside and the air temperature, the products will be 30% It is possible for products stored in freezer mode to be affected. risk of melting on the surface and condensation on glass-like surfaces of the visible parts of the cabinet. This is observed. Therefore, in the current state of the technology, refrigerators and freezers... The problems experienced during the defrosting process in refrigerators need to be eliminated. It has been heard. 35 2 In conclusion, the existence of the above problems and the inadequacy of the current solutions, This has made it necessary to make improvements in the technical field. Purpose of the Invention The present invention eliminates the aforementioned disadvantages and the related technical A defrost management system for refrigerators and freezers that brings new advantages to the field. It is related to. The main purpose of the invention is to reduce the air pressure inside the refrigerator to 10°C during defrosting with hot gas. the rise in temperature and the temperature difference between the products displayed inside the cabinet The goal is to create a defrost management system that prevents it from being affected. The purpose of the invention is to separate the indoor and outdoor environments in the compartment where the evaporator is located. The flaps placed to separate the evaporator open during defrosting, releasing the contents inside the evaporator. minimizing heat transfer between the products inside the cabinet and the environment It helps maintain the cold temperature and also defrosts. During this process, the fan remains active, drawing air from below and directing it to the top. a system that allows the defrosting process to be carried out very efficiently by pressing the exit button The goal is to develop a defrost management system. 20 Another aim of the invention is a defrost management system that shortens the defrosting time. The goal is to establish the system. To fulfill all the purposes stated above and those that can be derived from the detailed explanation, 25 An invention to enable the creation of a freezer and refrigerator that defrosts using hot gas. refrigerant used in refrigerators and freezers, which is stored in liquid phase. The cooling cycle involves transferring heat absorbed from the environment to the fluid, causing it to evaporate. It is a defrost management system that includes a bottom evaporator and a top evaporator. - a switch that opens and closes in the section where the bottom evaporator is located, and in the bottom evaporator and 30 This is done to prevent frost and ice formation in the upper evaporator. During the defrosting process, it opens to control the cooling and the direction of airflow. reversing the situation in the direction of airflow and between the bottom evaporator and the top evaporator The first flap reduces heat transfer between the cabinet interior and the surrounding environment. - a mechanism that opens and closes in the upper evaporator section and in the lower evaporator and 35 This is done to prevent frost and ice formation in the upper evaporator. 3 During the defrosting process, it opens to control the cooling and the direction of airflow. reversing the situation in the direction of airflow and between the bottom evaporator and the top evaporator This is related to the fact that the cabinet contains a second flap that reduces heat transfer between the interior and exterior of the cabinet. The structural and characteristic features and all the advantages of the invention are given in Figure 5 below. And thanks to the detailed explanation written with references to these figures, it becomes clearer. This will be understood as such. Therefore, the evaluation should also include these forms and detailed explanations. This should be done taking that into consideration. Figures to Help Understand the Invention 10 Figure 1: Defrost management system for refrigerator and freezer cabinets, which is the subject of the invention. a cross-section showing the first valve and the second valve in their closed state. It is the appearance. Figure 2: The subject of the invention is a defrost management system for refrigerator and freezer cabinets. 15 a cross-section showing the first valve and the second valve in their closed state. It is the appearance. Explanation of Part References 10. Bottom evaporator 20. Top evaporator 30. First valve 40. Second valve 50. Fan 25 S1-S2. Cooling status, airflow direction. D1-D2. Defrost status, airflow direction. Detailed Description of the Invention 30 In this detailed description, the subject of the invention is the preferred defrost management system. The alternatives are presented solely for the purpose of better understanding the subject and in no way. It is explained in a way that will not create a limiting effect. 35 4 Figures 1 and 2 show the defrost management system of the refrigerator and freezer compartments, which is the subject of the invention. Cross-sectional views are provided. Accordingly, the most basic defrost management system is shown. in this state; in the refrigerator and freezer cabinets, it absorbs refrigerant in liquid phase. A sub-base that performs a cooling cycle by transferring the heat it draws from the environment and allowing it to evaporate. evaporator (10) and top evaporator (20), bottom evaporator (10) and top evaporator 5 (20) Defrost process carried out to prevent the formation of frost and ice. During this process, the cooling status is activated, indicating the airflow direction (S1-S2), and the defrost status. turning the air flow direction (D1-D2) and the bottom evaporator (10) and the top evaporator (20) The first flap (30) and the second flap (40) reduce heat transfer with the cabinet interior environment, To provide airflow between the bottom evaporator (10) and the top evaporator (20), the bottom 10 It contains a fan (50) that sucks in air from the side and pushes it to the top outlet. In the defrost management system that is the subject of this invention, the liquid phase in the refrigerator and freezer cabinets by transferring the heat it has absorbed from the environment to the refrigerant it receives, it causes it to evaporate. A first valve 15 is installed in the part where the bottom evaporator (10) that performs the cooling cycle is located. (30) and a second flap (40) in the part where the upper evaporator (20) is located. The first valve (30) and the second valve (40) are installed. The freezer compartment is opened to separate the interior from the exterior. It is closing. The refrigerator and freezer cabinets are in normal cooling mode as shown in Figure 1. Meanwhile, the cooling mode is in the direction of airflow (S1-S2). Frost and ice formation in the lower evaporator (10) and upper evaporator (20) To prevent this, the defrosting process is initiated. During the defrosting process, 25... Hot gas comes to the bottom evaporator (10) and the top evaporator (20) and defrosts The procedure is performed. During this time, the first valve (30) and the second valve (40) are opened and the first Cooling condition with opening of the first flap (30) and the second flap (40) air flow direction (S1-S2), as shown in Figure 2, the defrost condition is reversed to the airflow direction (D1-D2). By opening the first flap (30) and the second flap (40), the products inside the cabinet are 30 Heat transfer between the part where it is located and the bottom evaporator (10) and the top evaporator (20) is minimized. It is lowered. At the same time, between the bottom evaporator (10) and the top evaporator (20). The positioned fan (50) operates and pushes the air it sucks in from the bottom to the top outlet. It ensures proper airflow and makes the defrosting process more efficient. 35 The defrosting process is complete when the specified temperature or time is reached, and the first one... The first valve (30) and the second valve (40) close. The first valve (30) and the second Air flow in the refrigerator with closing of the flap (40), cooling status air flow The bottom evaporator (10) and the top evaporator (20) turn in the direction (S1-S2) and cool down. Thanks to the air passing through it, the cooling process actively begins in the refrigerator. 5

Claims

6 REQUESTS 1. Used in freezers and refrigerators that defrost using hot gas, and to the refrigerant it receives in liquid phase in the refrigerator and freezer Cooling cycle 5: It absorbs heat from the environment, transfers it, and allows it to evaporate. Defrost management system including bottom evaporator (10) and top evaporator (20) It is a system, and its feature is; - opens and closes in the part where the bottom evaporator (10) is located and bottom Frosting that occurs in the evaporator (10) and the upper evaporator (20) and During the defrosting process, which is done to prevent icing, 10 Cooling status by opening, air flow direction (S1-S2), defrost status turning the air flow direction (D1-D2) and the bottom evaporator (10) and top The first evaporator (20) reduces heat transfer with the cabinet interior environment. valve (30), - opens and closes in the part where the upper evaporator (20) is located and the lower 15 Frosting that occurs in the evaporator (10) and the upper evaporator (20) and during the defrosting process to prevent icing Cooling status by opening, air flow direction (S1-S2), defrost status turning the air flow direction (D1-D2) and the bottom evaporator (10) and top The second evaporator (20) reduces heat transfer between the cabinet interior environment and the evaporator (20). It contains a flap (40).

2. A defrost management system that complies with Claim 1, and whose feature is; the aforementioned sub-system positioned between the evaporator (10) and the upper evaporator (20) and the bottom To provide air flow between the evaporator (10) and the upper evaporator (20) 25 It contains a fan (50) that sucks in air from the bottom and pushes it to the top outlet.

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