CN207487221U - A kind of horizontal frostless two-temperature freezer - Google Patents

Abstract

The utility model provides a horizontal frost-free dual-temperature freezer, which is provided with a first room and a second room in the body of the freezer, and also provided with a refrigeration system for refrigeration and a cooling system for delivering cooling capacity to each room. In the air duct system, the upper and lower ends of the evaporator room facing the first room are respectively provided with the first air inlet air duct and the first return air duct connected with the first room, and the upper and lower ends of the second room are connected with the first air duct. The upper and lower ends of the evaporator chamber are respectively connected to the second return air passage through the second air inlet duct. A damper for controlling the air volume is arranged in the second air inlet duct. The evaporator chamber is located above the evaporator. Fan; the first room and the second room are respectively provided with a first temperature sensor and a second temperature sensor for detecting the temperature of the room, and a controller is also provided in the cabinet. The utility model makes up for the deficiencies of serious frosting and difficulty in controlling the room temperature zone of the existing refrigerators by optimizing and improving the structure of the refrigerators.

Description

A horizontal frost-free dual-temperature freezer

technical field

The utility model relates to the technical field of refrigerators, in particular to a horizontal frost-free double-temperature refrigerator.

Background technique

As a convenient refrigeration tool, the horizontal dual-temperature freezer is widely used in commercial and household fields. Considering the cost and manufacturing process, the horizontal dual-temperature freezers on the market all adopt the direct cooling method, that is, the evaporator pipe is wrapped around the inner liner of the refrigerating room and the inner liner of the freezing room to foam, and the temperature is usually controlled mechanically. The method causes the following common problems in the horizontal dual-temperature freezer:

1. Severe frosting and cumbersome defrosting;

2. Due to the use of direct cooling and mechanical temperature control, it is difficult to control the temperature of the refrigerated compartment and the freezer compartment accurately, and it is difficult to change the room temperature range.

Utility model content

The utility model provides a horizontal frost-free dual-temperature refrigerator for avoiding the disadvantages of the above-mentioned prior art. By optimizing and improving the structure of the refrigerator, it makes up for the shortcomings of the existing refrigerators such as serious frosting and difficulty in controlling the room temperature area.

In order to achieve the above object, the utility model adopts the following technical solutions:

A horizontal frost-free dual-temperature refrigerator, in which a first room and a second room are arranged in the refrigerator cabinet, and a refrigeration system for cooling and an air duct system for delivering cold energy to each room are also provided. , its structural characteristics are:

The evaporator room is placed in the first room and is adjacent to the second room, and the first air inlet duct and the first return air channel connected with the first room are respectively provided at the upper and lower ends facing the first room. Air duct, the upper and lower ends of the second chamber and the upper and lower ends of the evaporator chamber communicate with the second return air duct through the second air intake duct respectively, and a control device is provided in the second air intake duct. The damper of the air volume, the evaporator room is located above the evaporator with a blower fan, the evaporator room, the blower fan, the first air inlet duct, the first return air duct, the second air inlet The air duct, the second return air duct and the damper constitute the air duct system;

The refrigeration system includes a compressor, a condenser, a capillary tube and an evaporator;

The first room and the second room are respectively provided with a first temperature sensor and a second temperature sensor for detecting the temperature of the room, and a controller is also arranged in the cabinet, and the compressor, the air blower, and the damper , the first temperature sensor and the second temperature sensor are respectively connected to the controller and controlled by the controller.

Structural features of the present utility model also are:

An air outlet mask is arranged on the inner wall of the second room adjacent to the evaporator room, and the air outlet mask is a shell with a cavity inside, and the shell is covered with a layer of thermal insulation material. On the side of the body facing the evaporator chamber, an air inlet is provided at a position corresponding to the air outlet of the second air inlet channel, and a plurality of air outlets are arranged on the side facing the second chamber, so as to take advantage of the space inside the housing. The cavity forms a cold input buffer.

The material of the thermal insulation material layer is thermal insulation sponge or thermal insulation foam.

An interlayer is set between the first compartment and the second compartment, the second air inlet duct and the second return air duct are located in the interlayer, and the second return air duct is provided It extends obliquely downward from the lower end of the second chamber to communicate with the lower end of the evaporator chamber.

Compared with the prior art, the beneficial effects of the utility model are reflected in:

1. The horizontal frost-free dual-temperature freezer of the present utility model uses the air duct system to cooperate with the refrigeration system to operate. Through air-cooled refrigeration, frosting and defrosting are all carried out in the evaporator room, which avoids serious frosting and defrosting of existing freezers. Frost is difficult, the door is laborious to open, etc. At the same time, the damper is used to control the cooling input of the second room, so as to realize the wide range temperature change of the second room, which is practical and greatly facilitates the user's operation;

2. The utility model is equipped with an air outlet mask with an air inlet and a plurality of air outlets in the second room. The air outlet mask is provided with a layer of thermal insulation material. On the one hand, the cold wind passing through the air outlet mask can be blown more evenly. In the second room, on the other hand, setting a layer of thermal insulation material can reduce condensation and improve user experience;

3. In this utility model, the second return air duct is designed to be inclined downward from the lower end of the second chamber toward the lower end of the evaporator, which can effectively avoid the internal icing of the second return air duct and ensure the smooth progress of the refrigeration work .

Description of drawings

Fig. 1 is the top view structure schematic diagram of the utility model horizontal frost-free dual-temperature freezer (excluding the door body);

Fig. 2 is a cross-sectional structural schematic diagram of a horizontal frost-free dual-temperature refrigerator of the present invention (excluding the door body);

Fig. 3 is a schematic diagram of the explosion structure of the air duct system in the utility model;

Fig. 4 is a schematic structural view of the wind outlet mask of the present invention.

In the figure, 1 cabinet body; 2 first room; 3 second room; 4 evaporator room; 5 first air inlet duct; 6 first return air duct; 7 second air inlet duct; 8th air duct Second return air duct; 9 air door; 10 air supply fan; 11 compressor; 12 evaporator; 13 air outlet mask; 14 compartment; 15 air inlet; 16 air outlet.

Detailed ways

Referring to Fig. 1 to Fig. 4, the horizontal frost-free dual-temperature refrigerator of the present embodiment is provided with a first chamber 2 and a second chamber 3 in the refrigerator cabinet body 1, and is also provided with a refrigeration system for refrigeration and for An air duct system that delivers cooling to each room, where:

The evaporator chamber 4 is placed in the first chamber 2 and is adjacent to the second chamber 3, and a first air inlet communicating with the first chamber 2 is provided at the upper and lower ends facing the first chamber 2, respectively. Road 5 communicates with the first return air duct 6, the upper and lower ends of the second chamber 3 and the upper and lower ends of the evaporator chamber 4 respectively through the second air inlet duct 7 and the second return air duct 8, in the second The air inlet duct 7 is provided with a damper 9 for controlling the air volume, and an air blower 10 is arranged above the evaporator 12 in the evaporator chamber 4, and the evaporator chamber 4, the air blower 10, the first air inlet duct 5. The first air return duct 6, the second air intake duct 7, the second return air duct 8 and the damper 9 form an air duct system;

Refrigeration system includes compressor 11, condenser, capillary and evaporator 12;

The first room 2 and the second room 3 are respectively provided with a first temperature sensor and a second temperature sensor for detecting the temperature of the room. The cabinet 1 is also provided with a controller, a compressor 11, a blower fan 10, The damper 9, the first temperature sensor and the second temperature sensor are respectively connected to and controlled by the controller.

Optionally, the damper 9 may be an electric damper 9 or a mechanical damper 9, and the blower fan 10 may be a centrifugal fan or an axial flow fan.

In specific implementation, the corresponding structural settings also include:

An air outlet mask 13 is arranged on the side inner wall of the second chamber 3 adjacent to the evaporator chamber 4. The air outlet mask 13 is a shell with a cavity inside. The shell is covered with a layer of thermal insulation material, and the shell faces One side of the evaporator chamber 4 is provided with an air inlet 15 at a position corresponding to the air outlet of the second air inlet duct 7, and a plurality of air outlets 16 are arranged on the side facing the second chamber, so that the space inside the housing The cavity forms a cold input buffer.

Optionally, the thermal insulation material layer is made of thermal insulation sponge or thermal insulation foam; the plurality of air outlets 16 are arranged on both sides of the casing, as shown in FIG. 4 .

By arranging the air outlet mask 13 and covering it with a layer of thermal insulation material, on the one hand, the above-mentioned cold input buffer zone can be used to play a certain role in the cold input to the second compartment 3 through the second air inlet duct 7. The buffering effect also makes the cooling energy in the cooling input buffer zone more evenly blown to the inside of the second chamber 3 through the air outlet mask 13. Another convenience is that setting the insulation material layer can reduce condensation and improve user experience.

In addition, in this embodiment, a partition 14 is set between the first compartment 2 and the second compartment 3, the second air inlet duct 7 and the second return air duct 8 are located in the compartment 14, and the second compartment 14 is set. The second return air duct 8 extends obliquely downward from the lower end of the second chamber 3 to communicate with the lower end of the evaporator chamber 4. This design can prevent the inside of the second return air duct 8 from icing and ensure the refrigerating work. went well.

The specific working principle of the horizontal frost-free dual-temperature refrigerator of the present embodiment is as follows:

The room temperature in the first room 2 and the second room 3 are respectively detected by the first temperature sensor and the second temperature sensor. When the first room 2 meets the refrigeration conditions, the controller controls the compressor 11 of the refrigeration system to start, and the refrigeration The working process of the system is as follows: the refrigerant is pressed to the condenser, so that the pressure of the condenser increases and the pressure of the evaporator 12 decreases. The refrigerant dissipates heat in the condenser and changes from gas phase to liquid phase. Entering the evaporator 12, the heat in the absorption cabinet 1 is converted into gas and sucked into the compressor 11, so that the cycle realizes refrigeration; at the same time, the controller starts the air blower 10, such as the second room 3 also meets the refrigeration requirements. Conditions, then open the damper 9 at the same time, as shown by the arrows in Figure 1, the cold energy enters the first room and the second room through the first air inlet channel and the second air inlet channel respectively, and then passes through the second room respectively. The first return air channel and the second return air channel are input into the evaporator room to realize air cooling for the first room 2 and the second room 3 .

The horizontal frost-free dual-temperature refrigerator of this embodiment utilizes air-cooled refrigeration, so that both frosting and defrosting are carried out in the evaporator chamber 4, so as to avoid problems such as severe frosting, difficult defrosting, and laborious opening of the door in the existing refrigerators; , the control of the cold input into the second room 3 can also be realized by controlling the damper 9, so that the second room 3 can carry out a wide range of temperature changes. In this embodiment, the temperature adjustment range of the second room 3 is 8- 24°C.

Claims (4)

1. a kind of horizontal frostless two-temperature freezer, the first compartment and second compartment are equipped in the refrigerator cabinet, is additionally provided with and is used for The refrigeration system of refrigeration and the ducting system for conveying cold to each compartment, it is characterized in that：

Evaporator room is placed in first indoor and close to second compartment, and is set respectively in the upper and lower end towards the first compartment side Put the first wind inlet channel and the first return airway being connected with the first compartment, the upper and lower side of the second compartment and evaporator room Upper and lower side be connected respectively by the second wind inlet channel with the second return airway, in second wind inlet channel be equipped be used for Control the air door of air quantity, positioned at the top of the evaporator equipped with breeze fan in the evaporator room, with the evaporator room, Breeze fan, the first wind inlet channel, the first return airway, the second wind inlet channel, the second return airway and air door form the wind Road system；

The refrigeration system includes compressor, condenser, capillary and evaporator；

The first temperature sensor and the second temperature of detection compartment temperature are respectively provided in first compartment and second compartment Sensor is spent, controller, the compressor, breeze fan, air door, the first temperature sensor and second are additionally provided in the cabinet Temperature sensor connect with controller and is controlled by the controller respectively.

2. horizontal frostless two-temperature freezer according to claim 1, it is characterized in that：The evaporation is closed in the second compartment One air outlet face cover is set on the side inner wall of device room, and the air outlet face cover has the housing of cavity for an inside, pasted on housing There is adiabator layer, housing is entered the wind towards the side of evaporator room, corresponding at the position in the second wind inlet channel air port equipped with one Mouthful, and multiple air outlets are being set towards the side of second compartment, cold input buffering is formed with the cavity of the enclosure interior Area.

3. horizontal frostless two-temperature freezer according to claim 2, it is characterized in that：The material of the adiabator layer is heat preservation Sponge or insulating foam.

4. horizontal frostless two-temperature freezer according to claim 1, it is characterized in that：First compartment and second compartment it Between an interlayer is set, second wind inlet channel, the second return airway are located in the interlayer, set second return airway It is to extend obliquely downward to the lower end with the evaporator room to be connected from the lower end of second compartment.