CN113915909B

CN113915909B - A kind of refrigerator

Info

Publication number: CN113915909B
Application number: CN202111133287.1A
Authority: CN
Inventors: 张德强; 王小倩; 李涛; 李中国; 张乾勇
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2023-04-11
Anticipated expiration: 2041-09-29
Also published as: CN113915909A

Abstract

The invention relates to the technical field of refrigeration equipment, and discloses a refrigerator which comprises a refrigerator body, an air duct assembly, an evaporator and a fan, wherein the refrigerator body is provided with a refrigerator body; a refrigerating chamber, a functional chamber and a freezing chamber are limited in the box body, and a temperature-changing drawer is arranged in the refrigerating chamber; the air duct assembly is arranged in the box body and forms a freezing cavity channel, a refrigerating cavity channel, a first air return cavity channel and a second air return cavity channel; the freezing chamber is communicated with the freezing cavity channel and the first air return cavity channel; the temperature-changing drawer is communicated with the refrigerating cavity and the refrigerating chamber; the refrigerating chamber is communicated with the refrigerating chamber channel, the functional chamber and the second return air channel, one part of return air of the refrigerating chamber enters the functional chamber, and the other part of return air enters the second return air channel; the function chamber is also communicated with a second air return cavity channel; the freezing cavity channel is communicated with the refrigerating cavity channel through an air door component; the fan drives a part of cold air to enter the freezing chamber, and the other part of cold air passes through the air door assembly. The invention only uses part of the return air of the refrigerating chamber to carry out the refrigeration cycle in the functional chamber, thereby solving the problem of large temperature fluctuation and inaccurate temperature control of the functional chamber.

Description

A kind of refrigerator

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to a refrigerator.

Background

For the user, the more the compartment temperature zone of the refrigerator is divided, the more convenient it is to use, and the user can store different kinds of foods. However, in the case of the refrigerator having the same outer size, the more the compartment temperature sections are divided, the higher the cost is, the smaller the volume available to the user is, and it is difficult to precisely control the temperature of each section.

Some air-cooled three-door products on the market at present generally have the following layout: the upper part is a refrigerating chamber, the middle part is a functional chamber (such as a temperature changing chamber), and the lower part is a freezing chamber. Most of the products are single-cycle refrigeration systems, and each compartment is controlled by air circulation.

The product of above-mentioned mode, function room is less, and function room temperature fluctuation is big, and the accuse temperature is not accurate, is difficult to satisfy customer's demand.

Thus, improvements in the prior art are needed.

Disclosure of Invention

The purpose of the invention is: the utility model provides a refrigerator to solve prior art's refrigerator function room less, and function room temperature fluctuation is big, and the accuse temperature is not accurate, is difficult to satisfy the technical problem of customer's demand.

In order to achieve the above object, the present invention provides a refrigerator including:

the refrigerator comprises a box body, a refrigerating chamber, a functional chamber and a freezing chamber, wherein a variable temperature drawer is further arranged in the refrigerating chamber;

the air duct assembly is arranged in the box body and forms a freezing cavity channel, a refrigerating cavity channel, a first air return cavity channel and a second air return cavity channel;

the freezing chamber is provided with a freezing air inlet communicated with the freezing cavity channel and a freezing air return inlet communicated with the first air return cavity channel;

the temperature-changing drawer is provided with a temperature-changing air inlet communicated with the refrigerating cavity channel and a temperature-changing air return inlet communicated with the refrigerating chamber;

the refrigerating chamber is provided with a refrigerating air inlet communicated with the refrigerating cavity channel, a first refrigerating return air inlet communicated with the air inlet of the functional chamber and a second refrigerating return air inlet communicated with the second return air cavity channel, so that part of return air of the refrigerating chamber enters the functional chamber and the other part of return air enters the second return air cavity channel; the function chamber is also provided with a chamber return air inlet communicated with the second return air cavity channel;

the second air return cavity channel is communicated with the first air return cavity channel, and the first air return cavity channel is communicated with the freezing cavity channel; the freezing cavity channel is communicated with the cold storage cavity channel through an air door assembly, and the air door assembly is used for adjusting air volume entering the cold storage chamber and the variable temperature drawer;

the evaporator and the fan are arranged in the freezing cavity channel, the fan drives a part of cold air to enter the freezing chamber, and the other part of cold air passes through the air door assembly.

In some embodiments of the present application, the temperature change drawer is disposed at a bottom of the refrigerating compartment.

In some embodiments of the present application, the box body includes an outer shell and an inner container;

the inner bag is located in the shell, be equipped with first baffle in the inner bag and will the inner bag cuts off to be last cavity and lower cavity, it has to be injectd in the last cavity the walk-in room, it has to be injectd in the lower cavity the function room reaches the freezer.

In some embodiments of the present application, the duct assembly includes a refrigerated duct panel and a frozen duct panel;

the refrigerating air duct plate is arranged in the upper chamber to form a refrigerating cavity channel positioned on the back and a refrigerating chamber positioned on the front;

the freezing air duct plate is arranged in the lower cavity to form a freezing cavity channel, a first air return cavity channel and a second air return cavity channel which are positioned on the back, a second partition plate is further arranged in the lower cavity to separate the front part of the lower cavity from the functional chamber and the freezing chamber below the functional chamber.

In some embodiments of the present application, the second air returning cavity channel and the freezing cavity channel are transversely arranged, and the bottom end of the second air returning cavity channel is communicated with the first air returning cavity channel.

In some embodiments of the present application, the damper assembly is a dual-channel damper disposed at a top of the freezing chamber;

the rear portion of the first partition plate is provided with a first air port and a second air port which are communicated with the two air outlets of the double-channel air door respectively, the first air port is communicated with the variable-temperature air inlet, and the second air port is communicated with the refrigerating air inlet.

In some embodiments of the present application, the damper assembly is a dual-channel damper disposed at the bottom of the refrigeration cavity;

the rear portion of first baffle is equipped with the third wind gap, its with the air intake intercommunication of binary channels air door, one in two air outlets of binary channels air door with the alternating temperature air intake intercommunication, another with cold-stored air intake intercommunication.

In some embodiments of the present application, at least one through hole is formed in the first partition plate, and the through hole is used as the first refrigerating return air inlet and the chamber air inlet of the functional chamber, so that the refrigerating chamber is communicated with the functional chamber.

In some embodiments of the present application, at least one through hole is formed in the first partition plate, and the through hole is used as the second refrigerated return air inlet and is communicated with the second return air channel.

In some embodiments of the present application, the second refrigerated return air opening may be provided at a bottom or lower back portion of the refrigerated compartment.

Compared with the prior art, the refrigerator provided by the embodiment of the invention has the beneficial effects that:

the refrigerator provided by the embodiment of the invention is provided with the refrigerating chamber, the variable temperature drawer, the functional chamber and the functional chamber of the freezing chamber, so that the problem of too few functional chambers is solved. And, the scheme that only the return air of a part of the refrigerating chamber is utilized to carry out the refrigeration cycle in the functional chamber is provided, so that the cooling and heating time of the functional chamber is longer, the obvious fluctuation caused by the temperature change of the refrigerating chamber (or the variable temperature drawer) is avoided, the temperature in the functional chamber is relatively stable, the problem of over-low temperature of the functional chamber can be effectively prevented, the problems of large temperature fluctuation and inaccurate temperature control of the functional chamber are solved on the premise of not obviously increasing the cost of products and not obviously reducing the effective volume of the products, the seasonal change can be adapted, the competitiveness of the products is ensured, and the sales area of the products is effectively expanded.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an internal structure and an air circulation schematic view of a refrigerator according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the inner container and the air duct assembly;

FIG. 3 is a schematic back view of the air duct assembly;

FIG. 4 is a schematic structural view of the first partition, the second partition and the freezing duct plate;

in the figure, 100, a box body; 110. a refrigerating chamber; 111. refrigerating an air inlet; 112. a first refrigerated return air inlet; 113. a second refrigerated return air inlet; 120. a functional room; 121. an air inlet of the chamber; 122. a chamber air outlet; 130. a freezing chamber; 131. freezing an air inlet; 132. a freezing air return port; 140. a variable temperature drawer; 141. a variable-temperature air inlet; 150. an inner container; 160. a first separator; 161. a first tuyere; 162. a second tuyere; 170. a second separator;

200. an air duct assembly; 201. freezing the cavity; 202. refrigerating the cavity; 203. a first air return cavity channel; 204. a second air return cavity channel; 210. a refrigerated air duct plate; 220. freezing the air duct plate;

300. a damper assembly; 400. a fan.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying that the number of indicated technical features is indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

As shown in fig. 1, a refrigerator according to a preferred embodiment of the present invention mainly includes a cabinet 100, an air duct assembly 200, an evaporator, and a blower fan 400.

The refrigerator body 100 is defined therein with a refrigerating chamber 110, a functional chamber 120 and a freezing chamber 130, and the refrigerating chamber 110 is further provided therein with a temperature-changing drawer 140.

The air duct assembly 200 is disposed in the box body and forms a freezing chamber 201, a refrigerating chamber 202, a first return air chamber 203 and a second return air chamber 204.

The freezing chamber 130 is provided with a freezing air inlet 131 communicated with the freezing chamber channel 201, and a freezing air return opening 132 communicated with the first air return chamber channel 203. The variable temperature drawer 140 is provided with a variable temperature air inlet 141 communicated with the refrigerating chamber 202, and a variable temperature air return inlet (not shown) communicated with the refrigerating chamber 110. The refrigerating chamber 110 is provided with a refrigerating air inlet 111 communicated with the refrigerating chamber channel 202, a first refrigerating return air inlet 112 communicated with the chamber air inlet 121 of the functional chamber 120, and a second refrigerating return air inlet 113 communicated with the second return air channel 204, so that part of return air of the refrigerating chamber 110 enters the functional chamber 120 and the other part of return air enters the second return air channel 204. The functional compartment 120 is further provided with a compartment return air inlet 122 in communication with a second return air channel 204.

The second return air channel 204 is communicated with the first return air channel 203, and the first return air channel 203 is communicated with the freezing channel 201. The freezing chamber 201 is communicated with the refrigerating chamber 202 through a damper assembly 300, and the damper assembly 300 is used for adjusting the air volume entering the refrigerating chamber 110 and the variable temperature drawer 140.

The evaporator is arranged in the freezing cavity 201, the evaporator is a part of a refrigerator refrigerating system, the refrigerator refrigerating circulating system comprises a compressor, a condenser, a drying filter, a capillary tube and the evaporator which are communicated through a refrigerant tube, the connection of the specific parts of the refrigerator refrigerating circulating system and the working principle are common knowledge, and the details are not repeated in the application, wherein the refrigerant absorbs heat when passing through the evaporator, cools the surrounding air, and forms cold air in the cavity. The fan 400 is arranged in the freezing cavity channel 201, a part of cold air is driven by the fan 400 to enter the freezing chamber 130, and the other part of cold air passes through the air door assembly 300.

When the refrigerator works, referring to fig. 1 (the arrow in fig. 1 indicates the air flow direction), the output air volume after the fan 400 rotates is set to be Q (Q = Q1+ Q2), the fan 400 drives a part of cold air Q1 to enter the freezing chamber 130 from the freezing air inlet 131 along the freezing chamber channel 201, and the other part of cold air Q2 enters the cold storage chamber channel 202 through the air door assembly 300 along the freezing chamber channel 201. The cool air Q1 entering the freezing chamber 130 returns to the first air return duct 203 from the freezing air return opening 132, and the refrigeration cycle of the freezing chamber 130 is completed. The cold air Q2 (Q2 = Q21+ Q22) is adjusted by the damper assembly 300, the distribution Q21 enters the refrigerating chamber 110 from the refrigerating air inlet 111 along the refrigerating channel 202, the distribution Q22 enters the temperature-changing drawer 140 from the temperature-changing air inlet 141 along the refrigerating channel 202, and returns to the refrigerating chamber 110 from the temperature-changing air return inlet, and the distribution Q20 is merged into the return air Q20 of the refrigerating chamber 110. The return air Q20 (Q20 = Q210+ Q220) of the refrigerating chamber 110, wherein a part of the air Q210 enters the functional compartment 120 through the first refrigerating return air inlet 112 and the compartment air inlet 121, and the air Q210 entering the functional compartment 120 enters the second return air channel 204 from the compartment return air inlet 122 and finally returns to the first return air channel 203, thereby completing the refrigeration cycle of the functional compartment 120. Another part of the air Q220 enters the second return air channel 204 and finally returns to the first return air channel 203, thereby completing the refrigeration cycle of the refrigerating compartment 110 and the temperature change drawer 140.

In the above embodiment, the refrigerator of the present application is provided with the functional compartments having four temperature ranges, namely, the refrigerating compartment 110, the variable temperature drawer 140, the functional compartment 120, and the freezing compartment 130, so that the requirement of a customer for multiple compartments can be effectively met, and the problem of too few functional compartments is solved. In addition, the scheme of performing the refrigeration cycle in the functional compartment 120 by using only a part of the return air of the refrigerating compartment 110 provided by the present application makes the cooling and heating time of the functional compartment 120 longer, and does not generate obvious fluctuation along with the temperature change of the refrigerating compartment 110 (or the variable temperature drawer 140), so that the temperature in the functional compartment 120 is relatively stable, and the problem of too low temperature in the functional compartment 120 can be effectively prevented.

The functional compartment 120 is preferably used to store foods such as vegetables which are not resistant to low temperature and have high humidity requirements, and is relatively difficult to air dry, so that the foods can be kept fresh for a longer time.

The refrigerator provided by the application solves the problems of too few compartments, large temperature fluctuation of the functional compartments and inaccurate temperature control on the premise of not obviously increasing the cost of products and not obviously reducing the effective volume of the products, thereby ensuring the competitiveness of the products.

Existing refrigerator products generally have an adaptive ambient temperature (climate type), and are generally required to be used under an N/ST (ambient temperature 16-32 ℃) climate type. The refrigerator provided by the application adopts a smart air circulation scheme, so that the stability of the compartment temperature can be effectively ensured, the product can meet the SN/N/ST/T (corresponding to the ambient temperature of 10-43 ℃) all-weather type, and the sales area of the product can be effectively expanded due to the characteristic of adapting to seasonal variation.

In some embodiments of the present application, referring to FIGS. 2-4, the enclosure 100 includes an outer shell (not shown) and an inner container 150. The air duct assembly 200 includes a refrigerated air duct panel 210 and a refrigerated air duct panel 220.

The inner container 150 is disposed in the housing, and a first partition 160 is disposed in the inner container 150 to partition the inner container 150 into an upper chamber and a lower chamber. The refrigerating duct plate 210 is disposed in the upper chamber to form a refrigerating duct 202 at the back and a refrigerating chamber 110 at the front, and the variable temperature drawer 140 is disposed at the bottom of the refrigerating chamber 110. The freezing air duct plate 220 is arranged in the lower chamber to form a freezing cavity 201, a first return air cavity 203 and a second return air cavity 204 which are arranged on the back.

The second return air channel 204 is transversely arranged with the freezing channel 201, and the bottom end of the second return air channel 204 is communicated with the first return air channel 203.

A second partition 170 is further provided in the lower chamber to partition the front of the lower chamber into the functional chamber 120 located above and the freezing chamber 130 located below. The first partition 160 may be specifically assembled with the wall of the inner container 150, the bottom of the refrigerating air duct plate 210, and the top of the freezing air duct plate 220, and the second partition 170 may be specifically assembled with the wall of the inner container 150 and the middle of the freezing air duct plate 220.

The refrigerating air inlet 111 is preferably disposed at the upper back of the refrigerating chamber 110, and may be disposed in a plurality of spaced positions, and the refrigerating air inlet 111 is specifically disposed by providing a through hole on the refrigerating air duct plate 210. The variable temperature drawer 140 is disposed at the bottom of the refrigerating compartment 110, and the variable temperature air inlet 141 is disposed at the upper back of the variable temperature drawer 140 (in the figure, the variable temperature air inlet 141 is represented by an air duct disposed on the refrigerating air duct plate 210). The first partition 160 has at least one through hole (three holes in the illustrated embodiment) for the first refrigerating return air inlet 112 and the chamber inlet 121 of the functional chamber 120, so that the refrigerating chamber 110 is communicated with the functional chamber 120. The first partition 160 is provided with at least one through hole (in the embodiment shown, a honeycomb through hole) as the second refrigerated return air inlet 113, and is communicated with the second return air channel 204. In the above embodiments, the second refrigerating return air opening 113 can be considered as being disposed at the bottom of the refrigerating compartment 110, and in other embodiments, the second refrigerating return air opening 113 can be disposed at the lower back portion of the refrigerating compartment 110.

The room return air inlet 122 of the function room 120 is arranged at the lower back of the function room 120 and communicated with the middle part of the second return air channel 204, and the specific arrangement mode of the room return air inlet 122 is that a through hole is arranged on the freezing air channel plate 220.

The freezing air inlet 131 is disposed at the upper back of the freezing chamber 130, the freezing air return 132 is disposed at the lower back of the freezing chamber 130, and the specific arrangement manner of the freezing air inlet 131 and the freezing air return 132 is to provide through holes on the freezing air duct plate 220.

The damper assembly 300 may be provided in a variety of arrangements.

The first method is as follows: referring to fig. 2-4, the damper assembly 300 is a dual path damper that is disposed at the top of the freezing chamber 201, i.e., below the first partition 160. The rear portion of the first partition plate 160 is provided with a first air opening 161 and a second air opening 162 which are respectively communicated with two air outlets of the two-channel air door, the first air opening 161 is communicated with the variable-temperature air inlet 141, the second air opening 162 is communicated with the refrigerating air inlet 111, and specifically, the communication can be realized by adopting an air pipe. In the above arrangement, the cool air is firstly divided by the two-channel air door, and then enters the refrigerating compartment 110 through the first air opening 161 and enters the temperature-changing drawer 140 through the second air opening 162.

The second method is as follows: the damper assembly 300 is a dual-channel damper that is disposed at the bottom of the refrigerating chamber 202, i.e., above the first partition 160. The rear portion of the first partition 160 is provided with a third air opening, which is communicated with the air inlet of the dual-channel air door, one of the two air outlets of the dual-channel air door is communicated with the variable-temperature air inlet 141, and the other air outlet is communicated with the refrigerating air inlet 111, and particularly, the communication can be realized by using an air pipe. In the above arrangement, the cold air firstly passes through the third air opening and then passes through the dual-channel air door to be divided into the refrigerating chamber 110 and the temperature-changing drawer 140.

The third is: the damper assembly 300 includes a single channel damper and a manual diverter switch. The single-pass damper may be provided at the top of the freezing chamber 201 or at the bottom of the refrigerating chamber 202. A fourth air port is arranged at the rear part of the first partition plate 160, and when the single-channel air door is arranged at the top of the freezing cavity channel 201, the fourth air port is communicated with an air outlet of the single-channel air door; when the single-channel air door is arranged at the bottom of the refrigerating cavity 202, the fourth air opening is communicated with the air inlet of the single-channel air door. The manual air distribution switch is arranged in the refrigerating cavity and can be a manual mechanical knob or a manual shifting piece switch, and air distribution is completed by manually rotating the knob or the shifting piece by a user so as to adjust the air volume entering the refrigerating chamber 110 and the temperature-changing drawer 140.

To sum up, compared with the prior art, the refrigerator provided by the invention at least comprises the following components

Has the advantages that:

firstly, the functional compartments having four temperature ranges of the refrigerating compartment 110, the variable temperature drawer 140, the functional compartment 120 and the freezing compartment 130 can more effectively meet the requirement of customers for multiple compartments, and the problem of too few compartments is solved.

Secondly, the scheme of the present application that only a part of the return air of the refrigerating chamber 110 is used for performing the refrigeration cycle in the functional chamber 120 makes the cooling and heating time of the functional chamber 120 longer, and does not generate obvious fluctuation along with the temperature change of the refrigerating chamber 110 (or the temperature-changing drawer 140), so that the temperature in the functional chamber 120 is relatively stable, and the problem of too low temperature in the functional chamber 120 can be effectively prevented, thereby solving the problems of large temperature fluctuation and inaccurate temperature control of the functional chamber 120, making the functional chamber 120 more suitable for storing foods which are not resistant to low temperature and have higher requirements on humidity, such as vegetables, and the like, and being relatively difficult to air dry, and keeping the food fresh for a longer time.

Thirdly, the refrigerator of the application can effectively ensure the stability of the compartment temperature due to the adoption of a smart air circulation scheme, so that the product can meet the SN/N/ST/T (corresponding to the ambient temperature of 10-43 ℃) all-weather type, the sales area of the product can be effectively expanded due to the characteristic of being adaptive to seasonal changes, and the competitiveness of the product is ensured.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A refrigerator, characterized by comprising:

the refrigerating chamber is provided with a refrigerating air inlet communicated with the refrigerating cavity channel, a first refrigerating return air inlet communicated with the chamber air inlet of the functional chamber and a second refrigerating return air inlet communicated with the second return air cavity channel, so that part of return air of the refrigerating chamber enters the functional chamber and the other part of return air enters the second return air cavity channel; the function chamber is also provided with a chamber return air inlet communicated with the second return air cavity channel;

the evaporator and the fan are arranged in the freezing cavity channel, the fan drives a part of cold air to enter the freezing chamber, and the other part of cold air passes through the air door assembly;

the temperature-changing drawer is arranged at the bottom of the refrigerating chamber.

2. The refrigerator of claim 1, wherein the cabinet includes an outer case and an inner container;

3. The refrigerator of claim 2, wherein the air duct assembly comprises a refrigerated air duct panel and a refrigerated air duct panel;

4. The refrigerator as claimed in claim 3, wherein the second return air duct is arranged in a lateral direction with respect to the freezing duct, and a bottom end of the second return air duct communicates with the first return air duct.

5. The refrigerator of claim 3, wherein the damper assembly is a dual-channel damper disposed at a top of the freezing chamber;

the rear portion of the first partition plate is provided with a first air port and a second air port which are respectively communicated with the two air outlets of the double-channel air door, the first air port is communicated with the variable-temperature air inlet, and the second air port is communicated with the refrigerating air inlet.

6. The refrigerator of claim 3, wherein the damper assembly is a dual-channel damper disposed at a bottom of the refrigerating chamber;

the rear portion of first baffle is equipped with the third wind gap, its with the air intake intercommunication of binary channels air door, one of two air outlets of binary channels air door with the alternating temperature air intake intercommunication, another with cold-stored air intake intercommunication.

7. The refrigerator as claimed in claim 3, wherein the first partition plate is provided with at least one through hole for the first refrigerating return air inlet and the chamber air inlet of the functional chamber, so that the refrigerating chamber is communicated with the functional chamber.

8. The refrigerator as claimed in claim 3, wherein the first partition is provided with at least one through hole for use as the second cool storage return air inlet, communicating with the second return air channel.

9. The refrigerator as claimed in claim 1, wherein the second cool-storage return air opening is provided at a bottom or a lower back portion of the cool compartment.