CN219199661U - Variable-temperature air duct assembly for refrigerator and refrigerator - Google Patents

Abstract

The utility model relates to a variable temperature air duct assembly for a refrigerator and the refrigerator, wherein a small variable temperature chamber and a full variable temperature chamber for storing articles are at least limited in the refrigerator, and the set temperature interval of the full variable temperature chamber is wider than the set temperature interval of the small variable temperature chamber. The temperature-changing air duct assembly comprises a temperature-changing air duct front cover, a temperature-changing air duct rear cover connected to the rear side of the temperature-changing air duct front cover, and a heat-insulating assembly arranged between the temperature-changing air duct front cover and the temperature-changing air duct rear cover; the interior of the heat preservation assembly is at least provided with a small temperature-changing air duct used for conveying cooling air flow to the small temperature-changing compartment and a full temperature-changing air duct used for conveying cooling air flow to the full temperature-changing compartment. The small temperature-changing air duct is defined by the heat-insulating foam and the heat-insulating PE film which are oppositely arranged, and the full temperature-changing air duct is defined by the heat-insulating foam which is oppositely arranged, so that different cold energy requirements of different compartments can be met, part of the heat-insulating foam can be replaced by the heat-insulating PE film, the consumption of the heat-insulating foam is saved, and the cost is reduced.

Description

Variable-temperature air duct assembly for refrigerator and refrigerator

Technical Field

The utility model relates to a refrigeration technology, in particular to a variable-temperature air duct assembly for a refrigerator and the refrigerator.

Background

In daily life, people mainly use refrigerators to store and keep articles fresh. The refrigerators commonly found in the prior art mainly include a conventional two-door refrigerator, a T-type refrigerator, a french refrigerator, a side-by-side refrigerator, and the like. In order to increase the storage space and improve the convenience of users in taking and placing articles, some refrigerators have a cooling chamber for accommodating an evaporator at the bottom of the refrigerator. Most of these refrigerators have a temperature change compartment that can be selectively provided with a refrigerating storage environment to serve as a refrigerating compartment or a freezing storage indirectly to serve as a freezing compartment, and the temperature range is relatively large because the temperature range of the temperature change compartment is set between refrigerating and freezing, and therefore the thickness design of the temperature change air duct is relatively complex. In the prior art, the variable-temperature air duct is either thinner or thicker, and is unreasonable in design, so that the control of cost is not facilitated.

Disclosure of Invention

It is an object of a first aspect of the present utility model to overcome at least one of the drawbacks of the prior art by providing a temperature swing air duct assembly for a refrigerator that is of reasonable design and low cost.

It is a further object of the first aspect of the present utility model to improve the sealing performance of a temperature swing air duct assembly.

The second aspect of the utility model aims to provide a refrigerator with the temperature changing air duct assembly.

According to a first aspect of the present utility model, there is provided a variable temperature air duct assembly for a refrigerator having at least a small variable temperature compartment and a full variable temperature compartment for storing articles defined therein, the full variable temperature compartment having a set temperature interval wider than a set temperature interval of the small variable temperature compartment; it is characterized in that the method comprises the steps of,

the temperature-changing air duct assembly comprises a temperature-changing air duct front cover, a temperature-changing air duct rear cover connected to the rear side of the temperature-changing air duct front cover, and a heat-insulating assembly arranged between the temperature-changing air duct front cover and the temperature-changing air duct rear cover; the inside of the heat preservation assembly is at least provided with a small temperature change air duct used for conveying cooling air flow to the small temperature change compartment and a full temperature change air duct used for conveying cooling air flow to the full temperature change compartment; wherein the method comprises the steps of

The small temperature-changing air duct is defined by heat-insulating foam and heat-insulating PE films which are oppositely arranged, and the full temperature-changing air duct is defined by heat-insulating foam which is oppositely arranged.

Optionally, the heat insulation component comprises front air duct foam, rear air duct foam connected to the rear side of the front air duct foam, and a heat insulation PE film attached to the front air duct foam and the rear air duct foam; wherein the method comprises the steps of

The rear air duct foam and the heat-insulating PE film cover different areas of the front air duct foam respectively to form the full-temperature-change air duct and the small-temperature-change air duct respectively.

Optionally, the front air duct foam and the rear air duct foam are connected in a buckling manner; and is also provided with

The buckling part between the front air duct foam and the rear air duct foam is in pressure connection through a stepped staggered structure.

Optionally, a convex rib positioned in the small temperature-changing air duct is arranged on the inner side of the front air duct foam, and the convex rib protrudes backwards from the inner side surface of the front air duct foam and extends along the airflow flowing direction in the small temperature-changing air duct; and is also provided with

The heat preservation PE film is adhered to the backward surface of the convex rib.

Optionally, a refrigerating compartment with a refrigerating storage environment is further defined in the refrigerator, and the refrigerating compartment is positioned above the small temperature changing compartment and the full temperature changing compartment; and is also provided with

The interior of the thermal insulation assembly also defines a refrigeration auxiliary air duct for delivering cooling air flow to the refrigeration compartment, the refrigeration auxiliary air duct being formed between the front air duct foam and the rear air duct foam.

Optionally, a total air flow inlet for cooling air to flow into is formed at the bottom of the temperature changing air duct assembly, and is directly or indirectly communicated with the small temperature changing air duct, the full temperature changing air duct and the refrigeration auxiliary air duct; and is also provided with

The total air flow inlet is a strip-shaped air port extending along the transverse direction of the temperature changing air duct assembly, and the width of the total air flow inlet in the transverse direction accounts for more than three fifths of the total width of the temperature changing air duct assembly in the transverse direction.

Optionally, a refrigerating air flow outlet for cooling air flow in the temperature changing air duct assembly to flow into the refrigerating compartment is formed at the top of the temperature changing air duct assembly; and is also provided with

The refrigerating air flow outlet is a strip-shaped air port extending along the transverse direction of the temperature changing air duct assembly, and the width of the refrigerating air flow outlet in the transverse direction is more than three-tenth of the total width of the temperature changing air duct assembly in the transverse direction.

Optionally, at least one limiting rib protruding inwards transversely is arranged on two lateral side walls of the temperature-changing air duct rear cover, and the limiting rib is in fit and pressure connection with the lateral side part of the heat-preserving component so as to limit the heat-preserving component to move relative to the temperature-changing air duct rear cover.

Optionally, a plurality of screw fixing seats protruding forwards are arranged on the front surface of the temperature-changing air duct rear cover at intervals;

the screw fixing seat penetrates through the whole heat preservation assembly, and the temperature-changing air duct rear cover is fixedly connected with the heat preservation assembly through screws penetrating through the screw fixing seat.

According to an object of the second aspect of the present utility model, there is also provided a refrigerator including:

the box body is internally provided with at least a small temperature changing chamber and a full temperature changing chamber for storing articles, and the set temperature interval of the full temperature changing chamber is wider than the set temperature interval of the small temperature changing chamber; and

the variable temperature air duct assembly according to any one of the above schemes, which is used for conveying cooling air flow to at least the small variable temperature chamber and the full variable temperature chamber.

The temperature-changing air duct assembly for the refrigerator comprises a temperature-changing air duct front cover, a temperature-changing air duct rear cover and a heat preservation assembly, wherein a small temperature-changing air duct used for conveying cooling air flow to a small temperature-changing compartment and a full temperature-changing air duct used for conveying cooling air flow to a full temperature-changing compartment are limited in the heat preservation assembly, and the set temperature interval of the full temperature-changing compartment is wider than the temperature set interval of the small temperature-changing compartment. That is, the full temperature changing chamber can realize a lower temperature environment than the small temperature changing chamber, and the cold quantity required by the small temperature changing chamber is less than that required by the full temperature changing chamber, so the heat preservation performance requirement of the small temperature changing air duct is lower than that of the full temperature changing air duct. Therefore, the small variable temperature air duct is arranged in a mode that the heat insulation property is slightly low and the full variable temperature air duct is arranged in a mode that the heat insulation property is high and the heat insulation property is limited by the heat insulation foam, namely, the structure and the material of the corresponding variable temperature air duct are designed according to the difference of the cold quantity required by different variable temperature compartments, so that the different cold quantity requirements of the full variable temperature compartments and the small variable temperature compartments can be met, part of the heat insulation foam can be replaced by the heat insulation PE film, the consumption of the heat insulation foam is saved, and the cost is reduced.

Further, the heat preservation subassembly includes the preceding wind channel foam of mutual lock and back wind channel foam, and the buckling department of two passes through the crimping of cascaded staggered structure, has increased the contact surface area of preceding wind channel foam and back wind channel foam buckling department, has prolonged the flow path of gas leakage air current to the cooperation mode of ladder still makes the flow direction of gas leakage air current take place multiple variation, has further avoided the possibility of gas leakage, has improved the sealing performance of alternating temperature wind channel subassembly.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present utility model;

FIG. 2 is a schematic block diagram of a temperature swing air duct assembly for a refrigerator according to one embodiment of the present utility model;

FIG. 3 is a schematic structural exploded view of a temperature swing air duct assembly for a refrigerator according to one embodiment of the present utility model;

fig. 4 is a schematic structural exploded view of a thermal insulation assembly according to one embodiment of the present utility model.

Detailed Description

The present utility model first provides a temperature change air duct assembly for a refrigerator, fig. 1 is a schematic structural diagram of a refrigerator according to one embodiment of the present utility model, and the refrigerator 1 is defined therein with at least a small temperature change compartment 111 and a full temperature change compartment 112 for storing articles. That is, the small variable temperature chamber 111 and the full variable temperature chamber 112 are so-called variable temperature chambers, and the temperature inside the chambers can be set to be between-25 ℃ and 8 ℃ in general, that is, the small variable temperature chamber 111 and the full variable temperature chamber 112 can be set to be in a refrigerating state or a freezing state. Further, the set temperature interval of the full temperature change chamber 112 is wider than the set temperature interval of the small temperature change chamber 111, that is, the amount of cooling required for the full temperature change chamber 112 may be more than the amount of cooling required for the small temperature change chamber 111. Specifically, the temperature of the total temperature change compartment 112 can be set, for example, between-25 and 8 ℃, and the total temperature change compartment 112 can be switched between a normal frozen state and a refrigerated state. The temperature of the small temperature change compartment 111 can be set, for example, between-5 and 8 ℃, i.e., the small temperature change compartment 111 can be switched between a soft freeze state and a refrigerated state.

Fig. 2 is a schematic structural view of a temperature varying duct assembly for a refrigerator according to an embodiment of the present utility model, fig. 3 is a schematic structural exploded view of the temperature varying duct assembly for a refrigerator according to an embodiment of the present utility model, and fig. 4 is a schematic structural exploded view of a heat insulation assembly according to an embodiment of the present utility model. Referring to fig. 2 to 4, the temperature change air duct assembly 20 includes a temperature change air duct front cover 21, a temperature change air duct rear cover 22 connected to the rear side of the temperature change air duct front cover 21, and a heat insulation assembly 23 disposed between the temperature change air duct front cover 21 and the temperature change air duct rear cover 22. The heat-insulating member 23 has at least a small temperature-changing air duct 25 for supplying cooling air to the small temperature-changing compartment 111 and a full temperature-changing air duct 26 for supplying cooling air to the full temperature-changing compartment 112 formed therein.

In particular, the small temperature change air duct 25 is defined by the opposed thermal insulation foam and thermal insulation PE film, and the full temperature change air duct 26 is defined by the opposed thermal insulation foam.

Because the full temperature change chamber 112 can achieve a lower temperature environment than the small temperature change chamber 111, the small temperature change chamber 111 requires less cold than the full temperature change chamber 112, and therefore the thermal insulation performance requirements of the small temperature change air duct 25 are lower than those of the full temperature change air duct 26. Therefore, the small variable temperature air duct 25 is arranged in a mode that the heat insulation property defined by the heat insulation foam and the heat insulation PE film is slightly low, and the full variable temperature air duct 26 is arranged in a mode that the heat insulation property defined by the heat insulation foam is high, namely, the structure and the material of the corresponding variable temperature air duct are designed according to the difference of the cold quantity required by different variable temperature compartments, so that the different cold quantity requirements of the full variable temperature compartment 112 and the small variable temperature compartment 111 can be met, the heat insulation PE film can be utilized to replace part of the heat insulation foam, the consumption of the heat insulation foam is saved, and the cost is reduced.

In some embodiments, insulation assembly 23 includes a front tunnel foam 231, a rear tunnel foam 232 attached to a rear side of front tunnel foam 231, and an insulation PE film 233 attached to front tunnel foam 231 and rear tunnel foam 232. The rear air duct foam 232 and the thermal insulation PE film 233 cover different areas of the front air duct foam 231, respectively, to form the full temperature change air duct 26 and the small temperature change air duct 25, respectively. That is, the full temperature-changing air duct 26 is defined by the front air duct foam 231 and the rear air duct foam 232, has good heat insulation performance, and can meet the air supply requirement of the full temperature-changing chamber 112; the small temperature-changing air duct 25 is defined by the front air duct foam 231 and the heat-insulating PE film 233, has slightly poor heat-insulating performance, and reduces the cost on the basis of meeting the air supply requirement of the small temperature-changing chamber 111.

In some embodiments, the front air channel foam 231 and the rear air channel foam 232 are connected by snap fit. And, the buckling part between the front air duct foam 231 and the rear air duct foam 232 is crimped by a stepped staggered structure. Therefore, the contact surface area of the buckling part of the front air duct foam 231 and the rear air duct foam 232 is increased, the flow path of the air leakage air flow is prolonged, the flow direction of the air leakage air flow is changed for a plurality of times in a stepped matching mode, the possibility of air leakage is further avoided, and the sealing performance of the variable-temperature air duct assembly 20 is improved.

In some embodiments, the inner side of the front air channel foam 231 is provided with a convex rib 251 located inside the small temperature changing air channel 25, and the convex rib 251 protrudes backward from the inner side surface of the front air channel foam 231 and extends along the airflow flowing direction in the small temperature changing air channel 25, so as to increase the length of the convex rib 251 in the airflow flowing direction of the small temperature changing air channel 25 as much as possible.

Further, the thermal insulation PE film 233 is attached to the rear surface of the rib 251. That is, the thermal insulation PE film 233 is bonded not only with the front air duct foam 231 and the rear air duct foam 232, but also with the ribs 251, so that the bonding area of the thermal insulation PE film 233 is increased, the connection stability between the thermal insulation PE film 233 and the front air duct foam 231 is improved, and the sealing effect between the two is improved.

Specifically, the edge portion of the thermal insulation PE film 233 may be adhered to the rear side of the front air duct foam 231, and the thermal insulation PE film 233 may extend outward beyond the abutting position between the front air duct foam 231 and the rear air duct foam 232 to cover the assembly gap between the front air duct foam 231 and the rear air duct foam 232, thereby being adhered to the rear air duct foam 232, further improving the assembly stability of the thermal insulation PE film 233 and the sealing performance of the temperature changing air duct assembly 20.

In some embodiments, a refrigerated compartment 113 having a refrigerated storage environment is also defined within the refrigerator 1. Specifically, the temperature in the refrigerating compartment 113 may be generally set between 0 to 8 ℃. The refrigerated compartment 113 is located above the small temperature change compartment 111 and the full temperature change compartment 112. In general, a cooling chamber for providing cooling capacity to the storage compartment is located at the lower part or bottom of the refrigerator 1, and thus, the refrigerating compartment 113 is farthest from the cooling chamber, and the cooling air flow is longest in its transfer path, so that the thermal insulation performance of the air duct for transferring the cooling air flow is required to be high.

Further, the interior of the thermal insulation assembly 23 also defines a refrigeration auxiliary air duct 27 for delivering cooling air flow to the refrigerated compartment 113, i.e., the refrigerated compartment 113 also delivers cooling air flow through the variable temperature air duct assembly 20. The auxiliary refrigerating duct 27 is formed between the front duct foam 231 and the rear duct foam 232, that is, the auxiliary refrigerating duct 27 is defined by the heat-insulating foam, so that the heat-insulating performance is better, the cold loss of the cooling air flow in the cooling air flow sent to the refrigerating compartment 113 in the conveying process is effectively prevented, and the defect of longer conveying path of the cooling air flow in the refrigerating compartment 113 is overcome.

In some embodiments, the bottom of the variable temperature air duct assembly 20 forms a total air flow inlet 20a for the flow of cooling air therein, the total air flow inlet 20a being in direct or indirect communication with the small variable temperature air duct 25, the full variable temperature air duct 26, and the refrigeration auxiliary air duct 27 to allow the flow of cooling air generated within the cooling compartment to flow through the bottom of the variable temperature air duct assembly 20 into and through the total air flow inlet 20a directly or indirectly to the small variable temperature air duct 25, the full variable temperature air duct 26, and the refrigeration auxiliary air duct 27, and thus to the small variable temperature compartment 111, the full variable temperature compartment 112, and the refrigeration compartment 113.

Further, the total air inlet 20a is a strip-shaped air port extending along the transverse direction of the variable temperature air duct assembly 20, so that the size of the strip-shaped air port is increased as much as possible by fully utilizing the characteristic of wider width of the variable temperature air duct assembly 20, thereby facilitating the cooling air flow to smoothly flow into the variable temperature air duct assembly 20 and reducing the air flow resistance.

Further, the width of the total air flow inlet 20a in the transverse direction is more than three-fifths of the total width of the variable temperature air channel assembly 20 in the transverse direction. Specifically, a certain space needs to be reserved on the lateral outer side of one bottom of the temperature-changing air duct assembly 20 to give way to the terminal box, and other areas except for the giving way space and the two bottom lateral edges of the temperature-changing air duct assembly 20 can form a total air flow inlet 20a, so that the width of the total air flow inlet 20a is increased as much as possible.

In some embodiments, the top of the variable temperature air duct assembly 20 is formed with a refrigerated air flow outlet 20b for cooling air flow therein into the refrigerated compartment. The refrigerated air outlet 20b is a strip-shaped air port extending along the transverse direction of the variable temperature air duct assembly 20, so that the size of the refrigerated air outlet 20b is increased as much as possible by fully utilizing the characteristic that the variable temperature air duct assembly 20 is wide, thereby facilitating the smooth outflow of the cooling air and reducing the air flow resistance.

Further, the width of the refrigerating air flow outlet 20b in the transverse direction accounts for more than three tenths of the total width of the temperature change air duct assembly 20 in the transverse direction, that is, the width of the refrigerating air flow outlet 20b is close to half of the total width of the temperature change air duct assembly 20 in the transverse direction, so that the size of the refrigerating air flow outlet 20b is increased as much as possible, and sufficient space is reserved for air flow outlets of other air ducts.

In some embodiments, the variable temperature air duct assembly 20 further includes a small variable temperature damper 281, a refrigeration damper 282, and a full variable temperature damper 283. The small variable temperature air door 281 is used for controllably conducting the small variable temperature air duct 25 to allow cooling air flow to flow into the small variable temperature chamber 111 and/or blocking the small variable temperature air duct 25 to prevent cooling air flow into the small variable temperature chamber 111, i.e. the small variable temperature air door 281 is used for controlling cooling air flow input quantity of the small variable temperature chamber 111. The refrigeration damper 282 is used to controllably communicate the refrigeration auxiliary air duct 27 to allow cooling air flow into the refrigerated compartment 113 and/or to block the refrigeration auxiliary air duct 27 to block cooling air flow into the refrigerated compartment 113, i.e., the refrigeration damper 282 is used to control the cooling air flow input to the refrigerated compartment 113. The full variable temperature damper 283 is used to controllably turn on the full variable temperature wind channel 26 to allow cooling airflow into the full variable temperature compartment 112 and/or to block the full variable temperature wind channel 26 to block cooling airflow from flowing into the full variable temperature compartment 112, i.e., the full variable temperature wind 283 is used to control cooling airflow input to the full variable temperature compartment 112.

In some embodiments, at least one limiting rib 221 protruding inwards transversely is arranged on two lateral side walls of the temperature-changing air duct rear cover 22, and the limiting rib 221 is in fit and press connection with the lateral side part of the heat-insulating assembly 23 so as to limit the heat-insulating assembly 23 to move relative to the temperature-changing air duct rear cover 22. That is, the heat preservation assembly 23 can be limited by the limiting ribs 221, so that the movement of the heat preservation assembly 23 is limited, and the assembly stability of the heat preservation assembly 23 is improved.

Further, a plurality of limit grooves 234 corresponding to the limit ribs 221 one by one are arranged on the lateral side of the heat preservation component 23, the limit grooves 234 extend along the front-back direction, and the limit ribs 221 are inserted into the limit grooves 234 from front to back, so that the heat preservation component 23 is limited to move relative to the temperature-changing air duct rear cover 22 at least in the up-down direction.

Specifically, each lateral side of the thermal insulation assembly 23 is provided with two spacing ribs 221, and the two spacing ribs 221 are respectively adjacent to the top and bottom of the thermal insulation assembly 23.

In some embodiments, the forward facing surface of the temperature swing tunnel rear cover 22 is provided with a plurality of forwardly projecting screw mounts 222 at intervals. The screw fixing seat 222 penetrates through the whole heat preservation assembly 23, and the temperature-changing air duct rear cover 22 is fixedly connected with the heat preservation assembly 23 through screws penetrating through the screw fixing seat. That is, the screw fixing seat 222 on the temperature changing air duct rear cover 22 is lengthened, so that the whole heat insulation assembly 23 can be fastened on the temperature changing air duct rear cover 22, and the connection stability between the heat insulation assembly 23 and the temperature changing air duct rear cover 22 is improved.

Specifically, the positions of the plurality of screw fixing bases 222 may be reasonably selected so as to avoid the air duct inside the heat insulation assembly 23, and may be uniformly distributed or non-uniformly distributed.

The utility model also provides a refrigerator 1, the refrigerator 1 comprises a refrigerator body 10, at least a small temperature changing chamber 111 and a full temperature changing chamber 112 for storing articles are limited in the refrigerator body 10, and the set temperature interval of the full temperature changing chamber 112 is wider than the set temperature interval of the small temperature changing chamber 111.

In particular, refrigerator 1 further includes a variable temperature air duct assembly 20 as described in any of the above embodiments, with variable temperature air duct assembly 20 being configured to deliver cooling air flow to at least small variable temperature compartment 111 and full variable temperature compartment 112.

The small variable temperature air duct 25 in the variable temperature air duct assembly 20 is arranged in a mode that the heat preservation property is slightly low and the full variable temperature air duct 26 is arranged in a mode that the heat preservation property is high and the mode that the full variable temperature air duct 26 is defined by the heat preservation foam is arranged, namely, the structure and the materials of the corresponding variable temperature air duct are designed according to the difference of cold energy required by different variable temperature compartments, so that the different cold energy requirements of the full variable temperature compartment 112 and the small variable temperature compartment 111 can be met, part of the heat preservation foam can be replaced by the heat preservation PE film, the consumption of the heat preservation foam is saved, and the cost of the whole refrigerator 1 is reduced.

In some embodiments, the cabinet 10 further defines a refrigerated compartment 113 having a refrigerated storage environment therein, and the variable temperature air duct assembly 20 is further configured to deliver a cooling air flow to the refrigerated compartment 113.

Specifically, the refrigerated compartment 113 may be located above the small temperature change compartment 111 and the full temperature change compartment 112. Further, the small temperature change compartment 111 is located above the full temperature change compartment 112.

In some embodiments, the housing 10 also defines a refrigerated compartment 114 having a refrigerated storage environment therein, the refrigerated compartment 114 delivering a cooling air flow through a refrigerated air duct assembly located on a rear side thereof.

Further, the freezer compartment 114 may be located on a first side in the lateral direction of the cabinet 10, and the refrigerator compartment 113, the light variable temperature compartment 111, and the full variable temperature compartment 112 may be located on a second side in the lateral direction of the cabinet 10 from top to bottom.

Further, the freezing compartment 114 provides cold through the freezing cooling compartment located at the bottom thereof, and the refrigerating compartment 113, the small variable temperature compartment 111 and the full variable temperature compartment 112 each provide cold through the variable temperature cooling compartment located at the bottom of the full variable temperature compartment 112. The freezing cooling chamber and the variable-temperature cooling chamber are both arranged in the box body 10 at the bottom, so that the rear storage space is not occupied, and the volume ratio of the refrigerator 1 is improved.

It should be understood by those skilled in the art that the above-described embodiments are only a part of embodiments of the present utility model, and not all embodiments of the present utility model, and the part of embodiments is intended to explain the technical principles of the present utility model and not to limit the scope of the present utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive effort, based on the embodiments provided by the present utility model, shall still fall within the scope of protection of the present utility model.

It should be noted that in the description of the present utility model, terms such as "center", "upper", "lower", "top", "bottom", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like, which indicate directional or positional relationships, are based on actual use states of the refrigerator 1 and the variable temperature air duct assembly 20, are merely for convenience of description, and do not indicate or imply that the devices or elements must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.

Further, it should also be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A temperature change air duct assembly for a refrigerator, wherein at least a small temperature change chamber and a full temperature change chamber for storing articles are limited in the refrigerator, and the set temperature interval of the full temperature change chamber is wider than the set temperature interval of the small temperature change chamber; it is characterized in that the method comprises the steps of,

the temperature-changing air duct assembly comprises a temperature-changing air duct front cover, a temperature-changing air duct rear cover connected to the rear side of the temperature-changing air duct front cover, and a heat-insulating assembly arranged between the temperature-changing air duct front cover and the temperature-changing air duct rear cover; the inside of the heat preservation assembly is at least provided with a small temperature change air duct used for conveying cooling air flow to the small temperature change compartment and a full temperature change air duct used for conveying cooling air flow to the full temperature change compartment; wherein the method comprises the steps of

The small temperature-changing air duct is defined by heat-insulating foam and heat-insulating PE films which are oppositely arranged, and the full temperature-changing air duct is defined by heat-insulating foam which is oppositely arranged.

2. The temperature swing tunnel assembly of claim 1 wherein,

the heat preservation component comprises front air duct foam, rear air duct foam connected to the rear side of the front air duct foam and a heat preservation PE film attached to the front air duct foam and the rear air duct foam; wherein the method comprises the steps of

The rear air duct foam and the heat-insulating PE film cover different areas of the front air duct foam respectively to form the full-temperature-change air duct and the small-temperature-change air duct respectively.

3. The temperature swing tunnel assembly of claim 2 wherein,

the front air duct foam and the rear air duct foam are connected in a buckling manner; and is also provided with

The buckling part between the front air duct foam and the rear air duct foam is in pressure connection through a stepped staggered structure.

4. The temperature swing tunnel assembly of claim 2 wherein,

the inner side of the front air duct foam is provided with a convex rib positioned in the small temperature-changing air duct, and the convex rib protrudes backwards from the inner side surface of the front air duct foam and extends along the airflow flowing direction in the small temperature-changing air duct; and is also provided with

The heat preservation PE film is adhered to the backward surface of the convex rib.

5. The temperature swing tunnel assembly of claim 2 wherein,

a refrigerating compartment with a refrigerating storage environment is further defined in the refrigerator, and the refrigerating compartment is positioned above the small temperature changing compartment and the full temperature changing compartment; and is also provided with

The interior of the thermal insulation assembly also defines a refrigeration auxiliary air duct for delivering cooling air flow to the refrigeration compartment, the refrigeration auxiliary air duct being formed between the front air duct foam and the rear air duct foam.

6. The temperature swing tunnel assembly of claim 5 wherein,

the bottom of the temperature-changing air duct assembly is provided with a total air flow inlet for cooling air to flow into, and the total air flow inlet is directly or indirectly communicated with the small temperature-changing air duct, the full temperature-changing air duct and the refrigeration auxiliary air duct; and is also provided with

The total air flow inlet is a strip-shaped air port extending along the transverse direction of the temperature changing air duct assembly, and the width of the total air flow inlet in the transverse direction accounts for more than three fifths of the total width of the temperature changing air duct assembly in the transverse direction.

7. The temperature swing tunnel assembly of claim 5 wherein,

a refrigerating air flow outlet for allowing cooling air flow in the temperature changing air duct assembly to flow into the refrigerating compartment is formed at the top of the temperature changing air duct assembly; and is also provided with

The refrigerating air flow outlet is a strip-shaped air port extending along the transverse direction of the temperature changing air duct assembly, and the width of the refrigerating air flow outlet in the transverse direction is more than three-tenth of the total width of the temperature changing air duct assembly in the transverse direction.

8. The temperature swing tunnel assembly of claim 1 wherein,

and at least one limiting rib protruding inwards transversely is arranged on the two transverse side walls of the temperature-changing air duct rear cover, and the limiting ribs are in fit and pressure connection with the transverse side parts of the heat-preserving component so as to limit the heat-preserving component to move relative to the temperature-changing air duct rear cover.

9. The temperature swing tunnel assembly of claim 1 wherein,

a plurality of screw fixing seats protruding forwards are arranged on the front surface of the temperature-changing air duct rear cover at intervals;

the screw fixing seat penetrates through the whole heat preservation assembly, and the temperature-changing air duct rear cover is fixedly connected with the heat preservation assembly through screws penetrating through the screw fixing seat.

10. A refrigerator, comprising:

the box body is internally provided with at least a small temperature changing chamber and a full temperature changing chamber for storing articles, and the set temperature interval of the full temperature changing chamber is wider than the set temperature interval of the small temperature changing chamber; and

the variable temperature air duct assembly of any of claims 1-9 for delivering cooling air flow to at least the small variable temperature compartment and the full variable temperature compartment.

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