CN209840496U - Refrigerator with novel air duct structure - Google Patents

Abstract

The utility model provides a refrigerator with a novel air channel structure, the return air channel includes a return air channel on the refrigerating side and a return air channel on the variable temperature side; Aisle, variable temperature room air outlet, variable temperature return air port; refrigerated air duct is set in the refrigerated interior, and there are two-channel dampers inside, including the main air duct of the refrigerated room, the variable room channel, the air inlet of the refrigerated air duct, and the damper of the refrigerated air duct ;The outlet of the freezing air duct is connected to the refrigerating air inlet channel, the air inlet of the refrigerating air duct, and the double-channel damper. The air duct on one side of the dual-channel damper leads to the main air duct of the refrigerating room and enters the refrigerating room, and then leads to the return air duct on the refrigerating side; The other side of the dual-channel damper leads to the channel of the variable temperature room and enters the variable temperature air channel module; then leads to the air outlet of the variable room, the damper of the refrigerated air channel, the variable temperature return air port, the return air channel of the variable temperature side; the return air channel of the refrigerated side Together with the return air duct on the temperature-changing side, they are brought together to the bottom of the freezer.

Description

A refrigerator with a new air duct structure

technical field

The utility model relates to the technical field of household appliances, in particular to a refrigerator with a novel air duct structure.

Background technique

The current common air-cooled refrigerator has a cold room, a variable temperature room, and a freezer room. The refrigerator compartment is at the top, the freezer compartment is at the bottom, and the variable room is in the middle. For refrigerators with a single evaporator refrigeration system, the refrigerating room and variable temperature room control the air intake through the damper to achieve temperature control, and the damper is usually placed in the variable temperature room. Such as the air-cooled refrigerator disclosed in the Chinese patent application, application publication number: CN0105042990 A, application number: 201510560960.8. For products with a relatively small volume in the variable room, or products with a relatively short height, installing air duct dampers in the variable room is inconvenient for production and operation, which affects production efficiency and is difficult to operate.

In addition, for products with dampers placed in the cooling room, when the cooling function is set in the cooling room, condensation and icing will occur at the air outlet on the side of the damper leading to the refrigerator room, causing the damper to freeze. In order to prevent the air door from being condensed and frozen in the temperature-changing room, the air door is usually equipped with a heating wire function, which not only increases energy consumption, but also increases costs.

Utility model content

Aiming at the above-mentioned problems in the prior art, the utility model provides a refrigerator with a new air duct structure, which enables a wide range of temperature adjustment from cold storage to freezing in the double-door variable room, and uses a single evaporator, and the evaporator is located in the freezing room. It saves more space and improves the volume utilization rate. At the same time, the temperature of the variable room will not be affected by the temperature of the freezer, avoiding the risk of condensation and freezing.

The utility model adopts the following technical solutions:

A refrigerator with a novel air duct structure, comprising a box shell, a refrigerating chamber liner, a variable temperature chamber liner, a freezing chamber liner, a refrigerating air duct, a variable temperature air duct module, a freezing room air duct, a fan and an evaporator,

The refrigerating room liner, variable temperature room liner and freezing room liner are located in the box shell, and the refrigerating room liner, variable temperature room liner and freezing room liner respectively form a refrigerating room, a variable temperature room liner and a freezing room;

The fan and the evaporator are installed in the freezer. The air duct in the freezer includes the outlet of the freezing air duct and the return air duct. The return air duct includes the return air duct on the refrigerating side and the return air duct on the variable temperature side;

The variable temperature air duct module is installed outside the inner tank of the variable temperature room. The variable temperature air channel module includes the refrigerated air inlet channel, the air outlet of the variable room and the variable temperature return air port;

The refrigerating air duct is set in the inner liner of the refrigerating room, and the refrigerating air duct is equipped with double-channel dampers. The refrigerating air duct includes the main air duct of the refrigerating room, the channel of the variable room, the air inlet of the refrigerating air duct and the damper of the refrigerating air duct;

The outlet of the refrigerating air duct is connected to the refrigerating air inlet channel, the refrigerating air inlet channel leads to the air inlet of the refrigerating air duct, the air inlet of the refrigerating air duct leads to the double-channel damper, and the air duct on one side of the dual-channel damper leads to the main air duct of the refrigerating room and enters the refrigerating room. room, and then from the refrigerator room to the return air duct on the refrigeration side; the other side of the double-channel damper leads to the channel of the variable temperature room and enters the variable temperature air duct module;

The channel of the variable temperature room is connected to the air outlet of the variable temperature room, the air outlet of the variable temperature room is connected to the air door of the refrigerated air duct to the variable temperature return air port, and the variable temperature return air port is connected to the return air channel on the variable temperature side;

The air return duct on the refrigerated side and the air return duct on the variable temperature side are jointly collected at the bottom of the freezer.

Further, the air outlet of the temperature-changing room is located between the inner liner of the refrigerating room and the inner liner of the temperature-changing room.

Furthermore, the temperature-variable air channel module is assembled by splicing multiple foams or by injection molded parts.

The beneficial effect that the utility model has is:

(1) It avoids the risk of condensation and freezing of the damper when it is placed in the temperature-changing room;

(2) Cancel the air door heating function, reduce energy consumption and cost;

(3) Improve production efficiency and production convenience;

(4) The designed air duct has compact structure, high space utilization rate and increased product volume.

Description of drawings

Fig. 1 is a schematic diagram of the front structure of a refrigerator with a novel air duct structure;

Fig. 2 is an exploded schematic diagram of an air duct of a refrigerator with a novel air duct structure;

Figure 3 is a schematic diagram of the direction of the air duct;

Fig. 4 is the A-A direction sectional view of Fig. 3;

Fig. 5 is the B-B direction sectional view of Fig. 3;

FIG. 6 is a cross-sectional view along C-C direction of FIG. 4 .

Among them, 1 is the cold room, 2 is the variable room, and 3 is the freezer; 4 is the outer shell of the box, 5 is the inner liner of the cold room, 6 is the inner liner of the variable room, 7 is the inner liner of the freezing room, and 8 is a double-channel damper. 9 is the refrigerated air duct, 10 is the variable temperature air duct module, 11 is the return air duct, and 12 is the fan; 9-1 is the main air duct of the refrigerated room, 9-2 is the channel of the variable greenhouse, and 9-3 is the air inlet of the refrigerated air duct ; 10-1 is the refrigerated air inlet passage, 10-2 is the variable temperature greenhouse air outlet, 10-3 is the variable temperature return air outlet;

Detailed ways

It should be noted:

1) The actual application form of the variable temperature air duct module can be foam, plastic parts or other materials.

2) There are no restrictions on the product form with the refrigerator on the top, the variable room on the middle, and the freezer on the bottom. If the setting changes temperature again, the product form in the freezer can also use the structure of this patent. Or the changing room is located in another location, which should also be used as an alternative.

3) The exchange of the direction of the variable greenhouse and the cold room on both sides of the damper should also be used as an alternative, and the exchange of the placement direction of the return air duct should also be used as an alternative.

4) The definition of the temperature intervals of the freezing room, cold storage room and variable temperature room mentioned in the utility model is a conventional division. , such as variable greenhouses, zero-star rooms, etc., should also be used as an alternative.

Below in conjunction with accompanying drawing, the utility model is specifically described:

Referring to Figures 1 to 2, a refrigerator with a new air duct structure includes a box shell 4, a refrigerating chamber liner 5, a variable temperature chamber liner 6, a freezing chamber liner 7, a refrigerating air duct 9, and a variable temperature air duct module 10. Freezing chamber air duct, blower fan 12 and evaporator, refrigerating chamber 7, variable temperature chamber liner 6 and freezing chamber 7 are located in the box shell 4, refrigerating chamber 5, variable temperature chamber liner 6 and refrigerating chamber A refrigerating chamber 1, a temperature-changing chamber 2 and a freezing chamber 3 are respectively formed in the indoor liner 7.

Referring to Fig. 3 to Fig. 6, the fan 12 and the evaporator are arranged in the freezing chamber 3, the air duct of the freezing chamber includes the outlet of the freezing air duct and the return air duct 11, and the return air duct 11 includes the return air duct 11-1 on the refrigeration side and the variable temperature One side air return duct 11-2.

The variable temperature air channel module 10 is installed outside the variable temperature room inner tank 6, and the variable temperature air channel module 10 includes a refrigerated air inlet channel 10-1, a variable temperature room air outlet 10-2 and a variable temperature return air port 10-3.

The refrigerating air duct 9 is arranged in the refrigerating chamber 5, and the refrigerating air duct 9 is provided with a double-channel damper 8. The refrigerating air duct 9 includes the main air duct 9-1 of the refrigerating room, the variable room channel 9-2, and the inlet of the refrigerating air duct. Tuyere 9-3 and refrigerating air duct damper.

The outlet of the refrigerated air duct is connected to the refrigerated air inlet channel 10-1, the refrigerated air duct 10-1 leads to the refrigerated air duct inlet 9-3, the refrigerated air duct air inlet 9-3 leads to the dual-channel damper 8, and the dual-channel damper 8 One side of the air duct leads to the main air duct 9-1 of the refrigerating room and enters the refrigerating room 1, and then the refrigerating room 1 leads to the return air duct 11-1 on the refrigerating side; the other side of the double-channel damper 8 leads to the channel of the variable room 9-2, enter the variable temperature air duct module 10.

The channel 9-2 of the variable greenhouse is connected with the air outlet 10-2 of the variable greenhouse. 2. Connect the damper of the refrigerating air duct to the variable temperature return air outlet 10-3, and the variable temperature return air outlet 10-3 is connected to the variable temperature side return air duct 11-2.

The air return duct 11-1 on the refrigerating side and the air return duct 11-2 on the variable temperature side are jointly collected at the bottom of the freezing chamber.

Working process: the fan 12 blows cold air into the refrigerated air inlet channel 10-1, the refrigerated air inlet channel 10-1 crosses the back of the variable room 2, enters the refrigerated air channel air inlet 9-3, and is divided into two after passing through the double channel damper 8. One side enters the cold room main air duct 9-1, and the other side enters and leads to the variable room passage 9-2.

The cold air enters the cold room 1 through the main air duct 9-1 of the cold room, and then returns to the bottom of the cold room 3 through the return air duct 11-1 on the side of the cold room after entering the cold room.

The cold air enters the variable room 2 through the channel 9-2 of the variable room, and after entering the variable room 2, the cold air returns to the bottom of the freezing chamber through the variable temperature return air outlet 10-3 and the variable temperature side return air channel 11-2.

The return air duct 11-1 on the refrigerating side and the air return duct 11-2 on the variable temperature side on both sides are combined and then blown by the fan 12 to the refrigerating air inlet channel 10-1 to form a cold air circulation. The schematic diagram of the direction of the air duct is shown in Figure 3.

Referring to Fig. 4, the refrigerated air inlet channel 10-1 is located outside the variable temperature chamber liner 6, does not occupy the internal space of the variable temperature chamber 2, and the product volume increases. The air outlet 10-2 of the variable room is located between the refrigerating chamber 5 and the variable room liner 6, and the air duct is supplied from the top of the variable room liner 6, which can ensure temperature uniformity and does not occupy the storage space at the bottom of the variable room 2 , to increase the effective volume of the product. The double-channel damper 8 is located at the lower part of the refrigerating chamber 1 and is far away from the variable chamber 2. Even when the variable chamber 2 is set to freeze, the temperature at the position of the damper can still be kept above zero, and condensation and icing will not occur on the damper. It is not necessary to equip the damper with a heating wire.

As shown in Fig. 5, the air channel 9-2 on the variable temperature side is connected to the variable temperature air outlet 10-2, and its spatial position does not occupy the volume of the refrigerating room 1 or the variable room 2, and the structure of the air channel is more compact. The temperature-variable return air outlet 10-3 is connected with the return air passage 11-2 on the variable-temperature side to form the return air passage of the variable-temperature chamber. So far, the refrigerated air inlet channel 10-1, the variable temperature air outlet 10-2, and the variable temperature return air outlet 10-3 are integrated on a module. The module can be assembled by combining multiple foams, or can be combined by injection molding parts. . Its purpose is to improve the space utilization rate of the air duct without occupying the extra volume of the cold storage room 1 or variable temperature room 2, which can be pre-installed in advance during production, and the overall assembly production efficiency of the production line is higher.

Referring to Fig. 6, the wind of the refrigerated air inlet channel 10-1 enters the main air channel 9-1 of the refrigerating room through the dual-channel damper 8, and enters the variable room channel 9-2 on the other side. The double-channel damper 8 can control the air volume entering both sides according to the cooling capacity requirements of the refrigerating chamber 1 and the temperature-changing chamber 2.

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 present utility model.

Claims (3)

1. A refrigerator with a novel air duct structure, characterized in that it comprises a box shell, a refrigerating chamber liner, a variable room liner, a freezing room liner, a refrigerating air duct, a variable temperature air duct module, a freezing room air duct, fans and evaporators, The refrigerating room liner, variable temperature room liner and freezing room liner are located in the box shell, and the refrigerating room liner, variable temperature room liner and freezing room liner respectively form a refrigerating room, a variable temperature room liner and a freezing room; The fan and the evaporator are installed in the freezer. The air duct in the freezer includes the outlet of the freezing air duct and the return air duct. The return air duct includes the return air duct on the refrigerating side and the return air duct on the variable temperature side; The variable temperature air duct module is installed outside the inner tank of the variable temperature room. The variable temperature air channel module includes the refrigerated air inlet channel, the air outlet of the variable room and the variable temperature return air port; The refrigerating air duct is set in the inner liner of the refrigerating room, and the refrigerating air duct is equipped with double-channel dampers. The refrigerating air duct includes the main air duct of the refrigerating room, the channel of the variable room, the air inlet of the refrigerating air duct and the damper of the refrigerating air duct; The outlet of the refrigerating air duct is connected to the refrigerating air inlet channel, the refrigerating air inlet channel leads to the air inlet of the refrigerating air duct, the air inlet of the refrigerating air duct leads to the double-channel damper, and the air duct on one side of the dual-channel damper leads to the main air duct of the refrigerating room and enters the refrigerating room. room, and then from the refrigerator room to the return air duct on the refrigeration side; the other side of the double-channel damper leads to the channel of the variable temperature room and enters the variable temperature air duct module; The channel of the variable temperature room is connected to the air outlet of the variable temperature room, the air outlet of the variable temperature room is connected to the air door of the refrigerated air duct to the variable temperature return air port, and the variable temperature return air port is connected to the return air channel on the variable temperature side; The air return duct on the refrigerated side and the air return duct on the variable temperature side are jointly collected at the bottom of the freezer. 2. A refrigerator with a novel air duct structure according to claim 1, characterized in that the air outlet of the variable temperature chamber is located between the inner container of the refrigerating chamber and the inner container of the variable temperature chamber. 3. A refrigerator with a novel air duct structure according to claim 1, characterized in that the temperature-variable air duct module is assembled by combining multiple foams or by injection molded parts.