CN206989555U - A new type of air-cooled refrigerator - Google Patents

Abstract

The utility model discloses a kind of novel air-cooled refrigerator, and in particular to technical field of refrigeration equipment.The novel air-cooled refrigerator, including casing, refrigeration air channel, freezing air channel and refrigeration system, refrigeration air channel and freezing air channel are arranged at the foaming layer of casing, the top of casing is provided with refrigerating chamber, bottom is provided with refrigerating chamber, the evaporator of the refrigeration system is located in refrigerating chamber, evaporator is finned evaporator, evaporator is provided with defrost heater strip, freezing is provided with evaporation fan in air channel, freezing air channel is provided with the air door being connected with refrigeration air channel, and controller, controller control evaporation fan and air door are provided with casing.

Description

A new type of air-cooled refrigerator

technical field

The utility model relates to the technical field of refrigeration equipment, in particular to a novel air-cooled refrigerator.

Background technique

At present, air-cooled refrigerators only allow the freezer to defrost and pre-cool before the evaporator defrosts. When the room temperature exceeds 30°C, the temperature rise caused by the defrosting heating wire and the user opening the refrigerator to take food will be relatively large, which will easily cause irreversible damage to the freshness of the food.

Utility model content

The purpose of this utility model is to solve the defrosting and pre-cooling of the freezer in the defrosting pre-defrost of the existing air-cooled refrigerator, the temperature of the freezer will rise relatively large, and it is easy to cause damage to the food in the freezer. A new type of air-cooled refrigerator capable of defrosting and precooling the freezer and defrosting the refrigerator.

The utility model specifically adopts the following technical solutions:

A new type of air-cooled refrigerator, including a box body, a refrigerating air duct, a freezing air duct and a refrigeration system. The refrigerating air duct and the freezing air duct are arranged on the foam layer of the box body. The evaporator of the refrigerating system is located in the refrigerating chamber, the evaporator is a finned evaporator, the evaporator is provided with a defrosting heating wire, the evaporating fan is provided in the refrigerating air channel, and the refrigerating air channel is provided with a cooling fan. The air door connected with the channel is provided with a controller in the box, and the controller controls the evaporation fan and the air door.

Preferably, a room temperature sensor is provided on the casing of the box, a first temperature sensor is provided in the refrigerating chamber, a second temperature sensor is provided in the freezing chamber, and the room temperature sensor, the first temperature sensor and the second temperature sensor are electrically connected to control When the new air-cooled refrigerator reaches the defrosting condition, if the room temperature sensor detects that the room temperature exceeds 30°C, the controller controls the refrigerating room and the freezing room to enter the pre-cooling operation mode before defrosting; The precooling operation mode is,

A certain temperature between 6°C and 14°C is set by the controller as the shutdown point temperature of the refrigerating room, and 2°C or 0°C below the shutdown point temperature is used as the pre-cooling temperature of the refrigerating room until the first temperature sensor detects When the temperature in the refrigerating room reaches the pre-cooling temperature of the refrigerating room, the controller controls the damper to close, and the refrigerating room stops pre-cooling; the pre-cooling operation mode of the freezing room before defrosting is,

A certain temperature between -26°C and -18°C is set by the controller as the shutdown point temperature of the freezer, and 2°C below the shutdown point temperature is used as the pre-cooling temperature of the freezer until the second temperature sensor detects that the freezer is frozen. When the indoor temperature reaches the pre-cooling temperature of the freezer, the controller controls the compressor and evaporating fan of the refrigeration system to turn off, and the freezer stops pre-cooling; at the same time, the defrosting heating wire is activated to enter the defrosting operation mode.

The utility model has the following beneficial effects:

When the room temperature exceeds 30°C, pre-cool both the freezer and the refrigerator before defrosting, so that the temperature of the two chambers is pre-cooled to 2°C below the shutdown point of each chamber, but the refrigerator It will not be lower than 0°C, which greatly protects the freshness of food;

Defrost and pre-cool both the refrigerator and freezer to prevent the temperature inside the cabinet from exceeding the starting point due to defrosting heating;

The pre-cooling of the refrigerating room will not be lower than 0°C to prevent the refrigerating room from freezing; when the room temperature exceeds 30°C, the defrosting pre-cooling of the refrigerating room can prevent the food from being damaged by the temperature rise during defrosting.

Description of drawings

Fig. 1 is a schematic structural diagram of a novel air-cooled refrigerator;

Figure 2 is a block diagram of the working principle of the new air-cooled refrigerator.

Wherein, 1 is a cabinet, 2 is a refrigeration air duct, 3 is a compressor, 4 is a refrigerator, 5 is a freezer, 6 is an evaporator, and 7 is an evaporation fan.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the specific embodiment of the utility model is further described:

As shown in Figure 1, a new type of air-cooled refrigerator includes a cabinet 1, a refrigeration air duct 2, a freezing air duct and a refrigeration system, the refrigeration air duct 2 and the freezing air duct are arranged on the foam layer of the cabinet 1, and the cabinet The upper part of 1 is provided with a refrigerating chamber 4, and the lower part is provided with a freezing chamber 5. The evaporator 6 of the refrigeration system is located in the freezing chamber 5. The evaporator 6 is a finned evaporator, and the evaporator 6 is provided with a defrosting heating wire. An evaporating fan 7 is arranged in the freezing air duct, and an air door connected with the refrigerating air duct is provided on the freezing air duct, and a controller is arranged in the cabinet, and the controller controls the evaporating fan and the air door.

The casing of the box is provided with a room temperature sensor, a first temperature sensor is provided in the refrigerating chamber, a second temperature sensor is provided in the freezing chamber, the room temperature sensor, the first temperature sensor and the second temperature sensor are electrically connected to the controller; When the new air-cooled refrigerator reaches the defrosting condition, if the room temperature sensor detects that the room temperature exceeds 30°C, the controller controls the refrigerating room and the freezing room to enter the pre-cooling operation mode before defrosting; The pattern is,

A certain temperature between 6°C and 14°C is set by the controller as the shutdown point temperature of the refrigerating room, and 2°C or 0°C below the shutdown point temperature is used as the pre-cooling temperature of the refrigerating room until the first temperature sensor detects When the temperature in the refrigerating room reaches the pre-cooling temperature of the refrigerating room, the controller controls the damper to close, and the refrigerating room stops pre-cooling; the pre-cooling operation mode of the freezing room before defrosting is,

A certain temperature between -26°C and -18°C is set by the controller as the shutdown point temperature of the freezer, and 2°C below the shutdown point temperature is used as the pre-cooling temperature of the freezer until the second temperature sensor detects that the freezer is frozen. When the indoor temperature reaches the pre-cooling temperature of the freezer, the controller controls the compressor 3 and the evaporating fan of the refrigeration system to turn off, and the freezer stops pre-cooling; at the same time, the defrosting heating wire is activated to enter the defrosting operation mode.

As shown in Figure 2, the working principle of this new type of air-cooled refrigerator is that when the new type of air-cooled refrigerator reaches the defrosting condition, if the room temperature sensor detects that the room temperature exceeds 30°C, the controller controls the refrigerator and freezer to enter the pre-defrosting stage together. Pre-cooling operation mode; among them, the pre-cooling operation mode before defrosting in the refrigerator is,

A certain temperature between 6°C and 14°C is set by the controller as the shutdown point temperature of the refrigerating room, and 2°C or 0°C below the shutdown point temperature is used as the pre-cooling temperature of the refrigerating room until the first temperature sensor detects When the temperature in the refrigerating room reaches the pre-cooling temperature of the refrigerating room, the controller controls the damper to close, and the refrigerating room stops pre-cooling; the pre-cooling operation mode of the freezing room before defrosting is,

A certain temperature between -26°C and -18°C is set by the controller as the shutdown point temperature of the freezer, and 2°C below the shutdown point temperature is used as the pre-cooling temperature of the freezer until the second temperature sensor detects that the freezer is frozen. When the indoor temperature reaches the pre-cooling temperature of the freezer, the controller controls the compressor and evaporating fan of the refrigeration system to turn off, and the freezer stops pre-cooling; at the same time, the defrosting heating wire is activated to enter the defrosting operation mode.

Of course, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above-mentioned examples, and changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the present utility model are also acceptable. Should belong to the protection scope of the utility model.

Claims (2)

1. a kind of novel air-cooled refrigerator, including casing, refrigeration air channel, freezing air channel and refrigeration system, refrigeration air channel and freezing wind Road is arranged at the foaming layer of casing, and the top of casing is provided with refrigerating chamber, and bottom is provided with refrigerating chamber, it is characterised in that the refrigeration The evaporator of system is located in refrigerating chamber, and evaporator is finned evaporator, and evaporator is provided with defrost heater strip, freezes air channel Interior to be provided with evaporation fan, freezing air channel is provided with the air door being connected with refrigeration air channel, controller, controller control is provided with casing Evaporation fan and air door processed.

2. a kind of novel air-cooled refrigerator as claimed in claim 1, it is characterised in that the shell of the casing passes provided with room temperature Sensor, the first temperature sensor is provided with refrigerating chamber, second temperature sensor, temperature sensor, are provided with refrigerating chamber One temperature sensor electrically connects controller with second temperature sensor；When the novel air-cooled refrigerator reaches defrosting condition, if Temperature sensor detects room temperature more than 30 DEG C, controls refrigerating chamber and refrigerating chamber together into pre- cold operation mould before defrost by controller Formula；Precooling operational mode is before refrigerating chamber defrost therein,

Burnout temperature of a certain temperature value between 6 DEG C~14 DEG C as refrigerating chamber is set by controller, with the Burnout temperature 2 DEG C or 0 DEG C are refrigerating chamber precooling temperature below, until the first temperature sensor detects that the temperature in refrigerating chamber reaches refrigerating chamber During precooling temperature, closed by controller control air door, refrigerating chamber stops precooling；Precooling operational mode before refrigerating chamber defrost therein It is,

Burnout temperature of a certain temperature value between -26 DEG C~-18 DEG C as refrigerating chamber is set by controller, with the Burnout temperature 2 DEG C are refrigerating chamber precooling temperature below degree, until second temperature sensor detects that freezing indoor temperature reaches refrigerating chamber precooling During temperature, the compressor of refrigeration system and evaporation fan is controlled to close by controller, refrigerating chamber stops precooling；And startup simultaneously White heater strip enters defrost operational mode.