CN102564007A - Refrigerator - Google Patents

Abstract

The invention discloses a refrigerator, comprising: a box body, in which a temperature-changing room, a refrigerating room located above the temperature-changing room and a freezing room located below the temperature-changing room are formed, and a rear part of the refrigerating room is formed A refrigerating air passage communicated with the refrigerating chamber, a temperature-varying air passage communicating with the variable chamber is formed at the rear of the variable chamber, and a freezing air passage communicating with the freezing chamber is formed at the rear of the freezing chamber ; refrigerated evaporator and refrigerated evaporator; first to fourth air ducts; and first to fourth dampers. According to the refrigerator according to the embodiment of the present invention, according to the difference in the temperature setting value of the variable room, the variable room can form an air circulation with the refrigerating room or the freezing room, and realize a double-cycle refrigeration system, so that the temperature range of the variable room is wide, and the temperature control is precise. The utility model is beneficial to food storage and preservation, has a simple structure, is convenient to produce, and is convenient for users to use. Improve the performance of the refrigerator.

Description

refrigerator

technical field

The invention relates to the field of household appliance manufacturing, in particular to a refrigerator.

Background technique

For the variable temperature room installed on the existing refrigerator, the cooling method is direct cooling, the main problem is that the temperature range is not large, it cannot span multiple temperature zones, and users cannot choose according to their actual needs; for the frost-free cooling method Variable temperature room, because the variable temperature room and the freezing room are used as an air duct circulation system, and are greatly affected by the freezing room. When the variable temperature room is set at a higher temperature, the temperature control of the room is not very precise; When storing foods with high water content such as fruits and vegetables at a high temperature, the humidity in the greenhouse is low, which is not conducive to food preservation and storage.

Contents of the invention

The present invention aims to solve at least one of the above-mentioned technical problems.

Therefore, an object of the present invention is to provide a refrigerator, which adopts a double circulation system, has a large temperature range and precise temperature control.

The refrigerator according to the embodiment of the present invention includes: a box body, a temperature-changing room, a refrigerating room above the temperature-changing room, and a freezing room below the temperature-changing room are formed in the box, and a rear part of the refrigerating room is formed A refrigerating air passage communicated with the refrigerating chamber, a temperature-varying air passage communicating with the variable chamber is formed at the rear of the variable chamber, and a freezing air passage communicating with the freezing chamber is formed at the rear of the freezing chamber a refrigerating evaporator and a freezing evaporator, the refrigerating evaporator is located behind the refrigerating chamber in the refrigerating air duct and the freezing evaporator is located behind the freezing chamber in the refrigerating air duct; the first to The fourth air channel; and the first to fourth dampers; wherein, the refrigerating room communicates with the first air channel, the first air channel is connected with the variable room through the first damper, and the The first air duct is connected to the second air duct, the third air duct is connected to the variable temperature chamber through the third damper, and the third air duct is connected to the fourth air duct, and the third air duct is connected to the fourth air duct. The second air channel is connected to the refrigerating air channel through the refrigerating evaporator and the fourth air channel is connected to the freezing air channel through the freezing evaporator, and the refrigerating air channel is connected to the refrigerating air channel through the second damper. The variable temperature air passage is connected and the freezing air passage is connected with the variable temperature air passage through the fourth damper; when the temperature setting value of the variable temperature chamber is higher than the temperature of the refrigerator compartment, the first and second dampers open and the third and fourth dampers are closed; when the set temperature value of the variable room is lower than the temperature of the refrigerating compartment, the third and fourth dampers are opened and the first and second dampers are closed.

According to the refrigerator of the embodiment of the present invention, a temperature-changing room, a refrigerating room and a freezing room are formed in the box, and the changing room can be communicated with the refrigerating room or the freezing room through an air duct to realize circulation, and an air port is arranged in the air duct. Therefore, according to the different temperature setting values of the variable room, the variable room can form an air circulation with the refrigerator or freezer to realize a double cycle refrigeration system, so that the temperature range of the variable room is wide, the temperature control is precise, and it is beneficial to the storage and preservation of food. , simple in structure, convenient in production and convenient for users to use. Improve the performance of the refrigerator.

In addition, the refrigerator according to the above-mentioned embodiments of the present invention may also have the following additional technical features:

The refrigerator according to an embodiment of the present invention further includes: a refrigerating fan and a freezing fan, and the refrigerating fan and the freezing fan are respectively located in the refrigerating air duct and the freezing air duct.

According to an embodiment of the present invention, the first air duct is formed between the refrigerating room and the temperature changing room along the front-to-back direction, and the third air duct is formed between the temperature changing room and the temperature changing room along the front-to-back direction. between the freezer compartments.

In the refrigerator according to an embodiment of the present invention, the refrigerating fan is located above the refrigerating evaporator and the freezing fan is located above the refrigerating evaporator.

According to an embodiment of the refrigerator of the present invention, the refrigerating evaporator is formed with a refrigerating drainage pipe extending downwards to the outside of the box, and the bottom of the freezing evaporator is formed with a freezing drainage pipe extending downwards to the outside of the box.

In the refrigerator according to an embodiment of the present invention, the refrigerating drain pipe and the freezing drain pipe are located in the foam layer of the box body.

In the refrigerator according to an embodiment of the present invention, the lower end of the refrigerating drain pipe communicates with the freezing drain pipe.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

FIG. 1 is a schematic diagram of a refrigerator according to an embodiment of the present invention;

Fig. 2 is a partial schematic view of a refrigerating chamber and a temperature-changing chamber of a refrigerator according to an embodiment of the present invention; and

Fig. 3 is a partial schematic diagram of a freezing chamber and a temperature changing chamber of a refrigerator according to an embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate in a specific orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it can be a fixed connection, an integral connection, or It can be a detachable connection; it can be a mechanical connection or an electrical connection, and it can also be the internal communication of two components; it can be directly connected or indirectly connected through an intermediary. understanding of the specific meaning of the above terms.

A refrigerator according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figures 1-3, the refrigerator according to the embodiment of the present invention includes: a box body 100, a refrigeration evaporator 210 and a freezing evaporator 220, a first air duct 310, a second air duct 320, and a third air duct 330, The fourth air channel 340 , the first damper 410 , the second damper 420 , the third damper 430 and the fourth damper 440 .

Specifically, a refrigerating room 110 , a freezing room 120 and a temperature-changing room 130 are formed in the box body 100 , wherein the refrigerating room 110 is located above the temperature-changing room 130 , and the freezing room 120 is located below the temperature-changing room 130 . The rear portion of the refrigerating chamber 110 is formed with a refrigerating air passage 111 communicating with the refrigerating chamber 110, the rear portion of the freezing chamber 120 is formed with a freezing air passage 121 communicating with the freezing chamber 120, and the rear portion of the changing chamber 130 is formed with a cooling air passage communicating with the changing chamber 130. The variable temperature air duct 131.

The refrigerating evaporator 210 is in the refrigerating air duct 111 , and the refrigerating evaporator 210 is located behind the refrigerating room 110 . The freezing evaporator 220 is in the freezing air duct 121 , and the freezing evaporator 220 is located behind the freezing chamber 120 .

Wherein, the refrigerating room 110 communicates with the first air channel 310 , the first air channel 310 is connected with the variable room through the first damper 410 , and the first air channel 310 is connected with the second air channel 320 . The third air duct 330 is connected to the variable room 130 through the third air door 430 , and the third air duct 330 is connected to the fourth air duct 340 . The second air duct 320 is connected to the refrigeration air duct 111 through the refrigeration evaporator 210, the fourth air duct 340 is connected to the freezing air duct 121 through the freezing evaporator 220, and the refrigeration air duct 111 is connected to the variable temperature air duct 131 through the second damper 420. The freezing air duct 121 is connected to the temperature-variable air duct 121 through the fourth damper 440 .

When the temperature set point temperature of the variable room 130 is higher than the temperature of the refrigerating room 110 , the first damper 410 and the second damper 420 are opened and the third damper 430 and the fourth damper 440 are closed. When the set temperature of the variable room 130 is lower than the temperature of the refrigerating room 110 , the third damper 430 and the fourth damper 440 are opened and the first damper 410 and the second damper 420 are closed.

According to the refrigerator of the embodiment of the present invention, a refrigerating room 110, a freezing room 120 and a variable room 130 are formed in the box body 100. The variable room 130 can communicate with the refrigerating room 110 or the freezing room 120 through an air duct to realize circulation. tuyere. Thus, according to the different temperature setting values of the variable temperature room 130 , the variable temperature room 130 can form an air circulation with the refrigerating room 110 or the freezing room 120 , thereby realizing a dual-cycle refrigeration system. When the set temperature of the temperature changing room 130 is higher than the temperature of the refrigerating room 110 , the air circulation between the changing room 130 and the refrigerating room 110 is realized. When the set temperature of the variable room 130 is lower than the temperature of the refrigerating room 110 , the air circulation between the variable room 130 and the freezing room 120 is realized. The variable temperature room 130 has a wide temperature range and precise temperature control, which is beneficial to food storage and preservation. It has a simple structure, is convenient to produce, and is convenient for users to use. Improve the performance of the refrigerator.

According to an embodiment of the present invention, the box body 100 further includes: a refrigerating fan 510 and a freezing fan 520 . The refrigerating fan 510 is located in the refrigerating air duct 111 , and the refrigerating fan 520 is located in the refrigerating air duct 121 . Thus, the refrigerating fan 510 and the freezing fan 520 can accelerate the air circulation in the refrigerator, balance the temperature in the refrigerator, and make the temperature in the temperature changing chamber 130 accurate. Wherein, the refrigerating fan 510 and the freezing fan 520 may be fans.

According to some embodiments of the present invention, the first air passage 310 is formed between the refrigerating chamber 110 and the temperature changing chamber 130 along the front and rear directions, and the third air passage 330 is formed between the temperature changing chamber 130 and the freezing chamber 120 along the front and rear directions. Thus, the air duct is arranged on the beam in the refrigerator, which improves the space utilization rate. The length of the air duct is shortened, the refrigerator is refrigerated quickly, the production and use are convenient, and the utilization rate of the refrigerator is improved. At the same time, the first air duct 310 and the third air duct 330 can be arranged in other positions in the refrigerator according to actual needs, for example, distributed in the box along the side wall of the refrigerator, etc., all belong to the protection scope of this patent, which is very important to the field. It is understandable to those of ordinary skill.

According to an example of the present invention, the refrigerating fan 510 is located above the refrigerating evaporator 210 , and the freezing fan 520 is located above the refrigerating evaporator 220 . Thus, the refrigerating fan 510 can quickly bring the cold air produced by the refrigerating evaporator 210 into the refrigerating compartment 110 and the variable room 130, and the freezing fan 520 can quickly bring the cold air produced by the refrigerating evaporator into the freezing compartment 120 and the cooling room. Variable temperature room 130. Make the refrigerator cool quickly and facilitate food preservation. At the same time, the temperature in the temperature changing chamber 130 is further made accurate, so that it is convenient to adjust the temperature, which is convenient for users and improves the performance of the refrigerator.

According to some examples of the present invention, the refrigerating evaporator 210 is formed with a refrigerating drain pipe 101 extending downwards outside the box body 100 , and the freezing evaporator 220 is formed under the freezing evaporator 220 with a freezing drain pipe 102 extending downwards outside the box body 100 . In this way, the condensed water in the refrigerator is discharged, and the condensation of moisture in the refrigerator is avoided.

According to an embodiment of the present invention, the refrigerating drain pipe 101 and the freezing drain pipe 102 are located in the foam layer of the box. Advantageously, according to an embodiment of the present invention, the lower end of the refrigerating drain pipe 101 communicates with the freezing drain pipe 102 . Thus, the space utilization rate is improved. At the same time, the loss of cold air in the cabinet is reduced, and the insulation performance of the refrigerator is improved.

The working process of the refrigerator according to the embodiment of the present invention will be briefly described below with reference to the accompanying drawings.

As shown in FIG. 1 , three compartments are formed in the box body 100 , including a refrigerating compartment 110 , a freezing compartment 120 and a variable temperature compartment 130 . The air circulation of the refrigerating room 110 is as follows: under the action of the refrigerating fan 510, the cooled air enters the refrigerating room 110 through the refrigerating air channel 111, then enters the first air channel 310, and enters the bottom of the refrigerating evaporator 210 through the second air channel. After exchanging heat with the refrigerating evaporator 210, the air enters the refrigerating room 110 through the refrigerating fan 510 to form a circulation. The air circulation of the freezer 120 is as follows: the cooled air enters the freezer 120 through the freezer air channel 121 under the action of the freezer fan 520, and then enters the third air channel 330 and enters the bottom of the freezer evaporator 220, and the air and the freezer evaporator 220 After exchanging heat, it enters into the freezing chamber 120 through the action of the freezing fan 520 to form a circulation. The refrigerating drain pipe 101 can drain the defrosted water of the refrigerating evaporator 210 to the outside of the box body 100 , and the freezing drain pipe 102 can drain the defrosted water of the freezing evaporator 220 to the outside of the box body 100 . Wherein, the refrigerating drain pipe 101 is integrally connected with the freezing drain pipe 102 at the outlet of the box body 100, and discharges the defrosting water out of the box body.

As shown in Figure 2, when the temperature set in the temperature changing room 130 is higher than the temperature of the refrigerating room 110, the first damper 410 and the second damper 420 are opened and the third damper 430 and the fourth damper 440 are closed, and the cold air passes through the refrigerating fan 510 along the Going downward through the refrigerating air duct 110 , it enters the variable chamber 130 through the second damper 420 and the temperature-varying air duct 131 . Then enter the first air duct 310 through the first air door 410 at the top of the variable room 130, and then enter the bottom of the refrigeration evaporator 210 through the second air duct 320. Road 111 forms a loop;

As shown in FIG. 3 , when the temperature set in the variable room 130 is lower than the temperature of the refrigerating room 110 , the third damper 430 and the fourth damper 440 are opened and the first damper 410 and the second damper 420 are closed. The cold air enters the variable temperature air passage 131 through the refrigeration fan 520 and the fourth air outlet 440, then enters the variable temperature chamber 130 through the variable temperature air passage 131, and then enters the freezing evaporator 220 through the third air outlet 430, the third air passage 330 and the fourth air passage 340 At the bottom, after the air exchanges heat with the refrigerating evaporator 220 , it passes through the refrigerating fan 520 to form a circulation.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (7)

1. A refrigerator, characterized in that, comprising: A box body, the box is formed with a temperature-changing room, a refrigerating room above the temperature-changing room, and a freezing room below the temperature-changing room, and a refrigerating air duct communicating with the refrigerating room is formed at the rear of the refrigerating room , the rear of the temperature-changing chamber is formed with a temperature-variable air passage communicated with the variable chamber and the rear of the freezing chamber is formed with a freezing air passage communicating with the freezing chamber; a refrigerating evaporator and a freezing evaporator, the refrigerating evaporator is located behind the refrigerating compartment in the refrigerating air duct and the freezing evaporator is located behind the freezing compartment in the refrigerating air duct; first to fourth ducts; and 1st to 4th damper; Wherein, the refrigerating room communicates with the first air channel, the first air channel is connected with the temperature-changing room through the first damper, and the first air channel is connected with the second air channel, so The third air duct is connected to the variable room through the third damper and the third air duct is connected to the fourth air duct, and the second air duct is connected to the refrigeration air duct through the refrigeration evaporator. The fourth air duct is connected to the freezing air duct through the freezing evaporator, the refrigerating air duct is connected to the variable temperature air duct through the second damper, and the freezing air duct passes through the The fourth damper is connected with the variable temperature air duct; When the temperature setting value of the temperature changing room is higher than the temperature of the refrigerating room, the first and second dampers are opened and the third and fourth dampers are closed; temperature, the third and fourth dampers are opened and the first and second dampers are closed. 2 . The refrigerator according to claim 1 , further comprising: a refrigerating fan and a freezing fan, the refrigerating fan and the freezing fan being respectively located in the refrigerating air duct and the freezing air duct. 3. The refrigerator according to claim 2, wherein the first air passage is formed between the refrigerating chamber and the temperature changing chamber along the front-to-rear direction, and the third air passage is formed along the front-to-rear direction between the refrigerator compartment and the variable temperature chamber. Between the variable room and the freezer. 4. The refrigerator according to claim 2, wherein the refrigerating fan is located above the refrigerating evaporator and the freezing fan is located above the refrigerating evaporator. 5. The refrigerator according to claim 1, characterized in that, a refrigerating drain pipe extending downwards to the outside of the box is formed under the refrigerating evaporator, and a refrigerating drain pipe extending downwards to the box is formed under the refrigerating evaporator Field freezer drain. 6. The refrigerator according to claim 5, characterized in that, the refrigerating drain pipe and the freezing drain pipe are located in the foam layer of the box body. 7. The refrigerator according to claim 6, wherein the lower end of the refrigerating drain pipe communicates with the freezing drain pipe.

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