CN209893725U - Refrigerator with side wall air return of temperature-variable chamber - Google Patents

Abstract

The utility model provides a refrigerator of alternating temperature room lateral wall return air, the power distribution box comprises a box body, evaporimeter and alternating temperature room return air wind channel, the cooling chamber has been injectd to the bottom in the box, and the box is including the alternating temperature inner bag that is located the cooling chamber top, and it has the alternating temperature room to injectd in the alternating temperature inner bag, and at least one lateral wall is formed with the export of side return air in two horizontal lateral walls of alternating temperature inner bag, and alternating temperature room return air wind channel sets up to export side return air and cooling chamber intercommunication to carry the return air current with the alternating temperature room to cool off in. The utility model discloses a refrigerator, through the cooling chamber of bottom limited at the box, will originally replace the space that is occupied by the freezer by the cooling chamber occupies, the usable cooling chamber offers the abdication for the press cabin at rear, and the freezer need not give way for the press cabin again to increase the depth of freezer, increase the storage volume of freezer; in addition, a lateral return air outlet is formed on the lateral side wall of the variable temperature inner container, so that return air flow of the variable temperature chamber can be conveniently conveyed into the cooling chamber.

Description

Refrigerator with side wall air return of temperature-variable chamber

Technical Field

The utility model relates to a household electrical appliances technical field especially relates to a refrigerator of variable temperature chamber lateral wall return air.

Background

In the existing refrigerator, a freezing inner container is generally limited to a freezing chamber positioned at the bottom and a temperature-variable chamber positioned above the freezing chamber, and the temperature-variable chamber occupies partial space of the freezing inner container, so that the storage volume of the freezing chamber is reduced; in addition, in the existing refrigerator, the freezing chamber is positioned at the lowest part of the refrigerator, and the press chamber is positioned behind the freezing chamber, so that the freezing chamber needs to be abducted for the press chamber, and the freezing chamber is deformed to limit the depth of the freezing chamber.

Disclosure of Invention

In view of the above, it is an object of the present invention to provide a refrigerator that overcomes or at least partially solves the above problems.

The utility model discloses a further purpose promotes the refrigeration effect of refrigerator.

The utility model provides a refrigerator, include:

the cooling chamber is defined at the inner bottom of the box body, the box body comprises a variable temperature liner positioned above the cooling chamber, a variable temperature chamber is defined in the variable temperature liner, and a side return air outlet is formed in at least one of two transverse side walls of the variable temperature liner;

an evaporator disposed in the cooling chamber and configured to cool an air flow entering the cooling chamber;

and the variable-temperature chamber return air duct is arranged to communicate the side return air outlet with the cooling chamber so as to convey the return air flow of the variable-temperature chamber to the cooling chamber for cooling.

Optionally, the side return air outlet is adjacent the front end of the side wall in which it is located.

Optionally, at least one of the two lateral side walls of the cooling chamber is provided with a side return air inlet, the side return air inlet corresponds to the side return air outlet one by one, and the side return air inlet is communicated with the side return air outlet through a temperature-variable chamber return air duct.

Optionally, the side return air inlet is adjacent the front end of the side wall in which it is located.

Optionally, the number of the temperature-changing inner containers is two, the two temperature-changing inner containers are distributed along the transverse direction, a side return air outlet is formed in the transverse left side wall of the temperature-changing inner container positioned on the transverse left side, and a side return air outlet is formed in the transverse right side wall of the temperature-changing inner container positioned on the transverse right side;

the two temperature-variable chamber return air ducts correspond to the two temperature-variable inner containers one by one; the two side air return inlets are formed on two transverse side walls of the cooling chamber respectively;

the side return air outlets of the two variable temperature inner containers are respectively communicated with the corresponding side return air inlets through the corresponding variable temperature chamber return air ducts.

Optionally, the box further comprises:

the freezing inner container is positioned below the temperature-changing inner container, and a cooling chamber positioned at the bottom and a freezing chamber positioned above the cooling chamber are limited in the freezing inner container.

Optionally, the front side of the cooling compartment is formed with at least one front return air inlet in communication with the freezer compartment such that the flow of return air from the freezer compartment enters the cooling compartment through the at least one front return air inlet for cooling.

Optionally, the refrigerator further comprises:

the top cover is positioned above the evaporator;

at least one front cover group, wherein at least one front return air inlet is formed at the front side of each front cover group;

the top cover, the at least one front cover group and the rear wall, the bottom wall and the two transverse side walls of the freezing inner container jointly define a cooling chamber;

the lateral side walls of the freezing inner container form the lateral side walls of the cooling chamber.

Optionally, there are two front cover groups, and the two front cover groups are distributed in the transverse direction.

Optionally, the refrigerator further comprises:

a blower fan disposed in the cooling chamber, configured to suck the return air flow into the cooling chamber, to be cooled by the evaporator, and to cause the cooled air flow to the freezing chamber and the temperature-changing chamber;

the freezing chamber air supply duct is communicated with the air outlet end of the air supply fan and is configured to convey part of the airflow cooled by the evaporator into the freezing chamber;

and the variable-temperature chamber air supply duct is configured to be controllably communicated with the freezing chamber air supply duct so as to convey part of the air flow in the freezing chamber air supply duct into the variable-temperature chamber.

The utility model discloses a refrigerator, the temperature-changing chamber is limited by the temperature-changing inner bag independent of other inner bags, no longer occupies the space of freezing inner bag, can increase the storage volume of the freezing chamber limited by freezing inner bag; in addition, the cooling chamber is limited at the bottom of the box body, the space occupied by the freezing chamber is replaced by the space occupied by the cooling chamber, the cooling chamber is used for offering abdications for the rear press cabin, the freezing chamber does not need to offer abdications for the press cabin, the depth of the freezing chamber is increased, and therefore the storage volume of the freezing chamber is further increased.

Further, the utility model discloses an in the refrigerator, through injecing the cooling chamber in the bottom space of freezing inner bag to injecing the freezer in the top of cooling chamber, making the cooling chamber occupy the lower part space in the freezing inner bag, raised the freezer, reduce the user and get the degree of bowing when putting article operation to the freezer, promote user's use and experience.

Further, the utility model discloses an in the refrigerator, the front side of cooling chamber is formed with the at least one preceding return air entry with the freezer intercommunication, and the horizontal lateral wall of cooling chamber is formed with the side return air entry that supplies the return air current entering cooling chamber in the temperature-changing room for in the front side of cooling chamber and horizontal lateral part all had the return air current to get into the cooling chamber, increased the heat exchange efficiency of return air current and evaporimeter, promoted the refrigeration effect of refrigerator.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a front view of a refrigerator according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a refrigerator according to an embodiment of the present invention;

fig. 3 is a first partially exploded view of a refrigerator according to an embodiment of the present invention;

fig. 4 is a second partial schematic view of a refrigerator according to an embodiment of the present invention; and

fig. 5 is an exploded view of fig. 4.

Detailed Description

The present embodiment first provides a refrigerator, and the refrigerator according to the embodiment of the present invention is described below with reference to fig. 1 to 5. In the following description, the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", and the like are directions based on the refrigerator itself as a reference, and in addition, "lateral" means a direction parallel to the width direction of the refrigerator, "left" means a lateral left direction, and "right" means a lateral right direction, as shown in fig. 1.

Fig. 1 is a front view of a refrigerator 10 according to one embodiment of the present invention, and fig. 2 is a perspective view of the refrigerator 10 according to one embodiment of the present invention.

The refrigerator 10 may generally include a cabinet 100, the cabinet 100 including a housing 110 and a storage liner disposed inside the housing 110, a space between the housing 110 and the storage liner being filled with a thermal insulation material (forming a foaming layer), the storage liner defining therein a storage compartment, which may generally include a freezing liner 130, a refrigerating liner 120, and the like, the storage compartment including a freezing chamber 132 defined within the freezing liner 130 and a refrigerating chamber 121 defined within the refrigerating liner 120. The front side of the storage inner container is also provided with a door body to open or close the storage chamber, and the door body is hidden in both figures 1 and 2.

As those skilled in the art can appreciate, the refrigerator 10 of the present embodiment may further include an evaporator 101, a blower fan (not shown), a compressor (not numbered), a condenser (not shown), a throttling element (not shown), and the like. The evaporator 101 is connected to a compressor, a condenser, and a throttle element via refrigerant lines to form a refrigeration cycle, and is cooled when the compressor is started to cool air flowing therethrough.

Fig. 3 is a first partially exploded view of the refrigerator 10 according to one embodiment of the present invention.

In particular, in the present embodiment, as shown in fig. 1 to 3, a cooling chamber is defined in a bottom portion in the case 100, and the evaporator 101 is disposed in the cooling chamber and configured to cool the airflow entering the cooling chamber. The box body 100 comprises a temperature-changing liner 131 positioned above the cooling chamber, and a temperature-changing chamber 1311 is defined in the temperature-changing liner 131. At least one of the two lateral side walls of the temperature changing liner 131 is formed with a side return air outlet (not numbered), and the refrigerator 10 further includes a temperature changing chamber return air duct 1312 communicating the side return air outlet with the cooling chamber, so that the return air flow of the temperature changing chamber 1311 is delivered into the cooling chamber to be cooled by the evaporator 101, thereby forming an air flow circulation between the temperature changing chamber 1311 and the cooling chamber.

In the refrigerator 10 of the present embodiment, the variable temperature chamber 1311 is defined by the variable temperature liner 131 independent of other liners, and does not occupy the space of the freezing liner 130 any longer, so that the storage volume of the freezing chamber 132 defined by the freezing liner 130 can be increased; in addition, by limiting the cooling chamber at the bottom of the box body 100, the space originally occupied by the freezing chamber 132 is replaced by the space occupied by the cooling chamber, the cooling chamber is used for giving way to the lower-back press cabin 1100, the freezing chamber 132 does not need to give way to the press cabin 1100 any more, the shape rule of the freezing chamber 132 is guaranteed, the depth of the freezing chamber 132 is increased, and the storage volume of the freezing chamber 132 is further increased.

In this embodiment, the freezing inner container 130 may be located below the temperature-changing inner container 131, and the freezing inner container 130 defines therein the cooling chamber located at the bottom and a freezing chamber 132 located above the cooling chamber. That is, the cooling chamber is located at the bottom of the freezing inner container 130, and the freezing chamber 132 is located in the freezing inner container and directly above the cooling chamber.

In the conventional refrigerator 10, since the freezing chamber 132 is located at the lowest part of the refrigerator 10, and the position of the freezing chamber 132 is low, a user needs to bend down or crouch down greatly to perform an operation of taking and placing articles in the freezing chamber 132, which is inconvenient for the user to use, especially for the elderly; moreover, since the depth of the freezing chamber 132 is reduced, in order to ensure the storage volume of the freezing chamber 132, the space in the height direction of the freezing chamber 132 needs to be increased, and when a user stores articles in the freezing chamber 132, the articles need to be stacked in the height direction, which is inconvenient for the user to find the articles, and the articles at the bottom of the freezing chamber 132 are easily shielded, so that the user is not easy to find the articles and forgets the articles, which causes deterioration and waste of the articles; moreover, because the freezing chamber is special-shaped and is not a rectangular space, some articles which have larger volume and are difficult to be cut are inconvenient to place in the freezing chamber.

The refrigerator 10 of this embodiment is through injecing the cooling chamber in the bottom space of freezing inner bag 130 to inject freezing chamber 132 in the top of cooling chamber, make the cooling chamber occupy the lower part space in the freezing inner bag, raised freezing chamber 132, reduce the degree of bowing that the user got when putting article operation to freezing chamber 132, promote user's use and experience. Meanwhile, as described above, the press cabin 1100 may be located at the rear lower part of the cooling chamber, and the freezing chamber 132 does not need to give way to the press cabin 1100 any more, so that the freezing chamber 132 is a rectangular space, and thus, the stacked storage of the articles may be changed into the flat-open storage, which is convenient for the user to search for the articles and saves the time and energy of the user; meanwhile, the storage device is convenient for storing large and difficult-to-divide articles, and the problem that pain spots of large articles cannot be stored in the freezing chamber 132 is solved.

The evaporator 101 is disposed in the cooling chamber in a flat cubic shape as a whole, that is, the long and wide faces of the evaporator 101 are parallel to the horizontal plane, the thickness face is disposed perpendicular to the horizontal plane, and the thickness dimension is significantly smaller than the length dimension of the evaporator 101. By placing the evaporator 101 horizontally in the cooling chamber, the evaporator 101 is prevented from occupying more space, and the storage volume of the freezing chamber 132 above the cooling chamber is ensured.

At least one of two lateral side walls of the cooling chamber is provided with a side return air inlet 130a, the side return air inlets 130a correspond to the side return air outlets one by one, and the side return air inlets 130a are communicated with the side return air outlets through a variable temperature chamber return air duct 1312.

To facilitate the arrangement of the variable temperature compartment return air duct 1312, the side return air outlet and the side return air inlet 130a corresponding thereto should be located on the same lateral side, for example, if the side return air outlet and the side return air inlet 130a are both one, and if the side return air outlet is formed on the lateral left side wall of the variable temperature compartment liner 131, accordingly, the side return air inlet 130a should be formed on the lateral left side wall of the cooling compartment, and the variable temperature compartment return air duct 1312 should be located outside the lateral left side of the freezing liner 130.

In some embodiments, the blower fan in the refrigerator 10 is disposed in the cooling compartment, configured to draw the return air flow into the cooling compartment to be cooled by the evaporator 101, and to cause the cooled air flow to flow toward the freezing compartment 132 and the temperature-changing compartment 1311. The refrigerator 10 of the present embodiment further includes a freezing chamber air supply duct 141 and a variable temperature chamber air supply duct (not shown), the freezing chamber air supply duct 141 is communicated with an air outlet end of the air supply fan, and is configured to deliver a part of the air flow cooled by the evaporator 101 to the freezing chamber 132, as shown in fig. 1, the freezing chamber air supply duct 141 is disposed inside a rear wall of the freezing liner 130, and has a plurality of air supply outlets 141a communicated with the freezing chamber 132.

The variable-temperature-chamber air supply duct is configured to be controllably communicated with the freezing-chamber air supply duct 141 to deliver a part of the airflow in the freezing-chamber air supply duct 141 into the variable-temperature chamber 1311. The temperature-variable chamber air supply duct is located above the freezing inner container 130 and behind the temperature-variable inner container 131, an air supply inlet 131a communicated with an air outlet end of the temperature-variable chamber air supply duct is formed in the rear wall of the temperature-variable chamber inner container 131, an air inlet end of the temperature-variable chamber air supply duct is communicated with the freezing chamber air supply duct 141 through a through hole 130b formed in the top wall of the freezing inner container 130, an electric control air door (not shown) can be arranged at the through hole 130b, the electric control air door is controlled to conduct the air inlet end of the temperature-variable chamber air supply duct and the freezing chamber air supply duct 141, and therefore partial air flow of the freezing chamber air supply duct 141 is conveyed into the temperature-.

In some embodiments, as shown in fig. 3, the side return air outlet may be adjacent the front end of the side wall in which it is located. Since the supply air inlet 131a of the temperature-varying liner 131 is formed in the rear wall of the temperature-varying liner 131, the cooling air flow delivered through the temperature-varying chamber supply air duct enters the temperature-varying chamber 1311 from the supply air inlet 131a, and the side return air outlet of the temperature-varying liner 131 is formed at a position near the front end of the side wall thereof, so that the flow path of the cooling air flow in the temperature-varying chamber 1311 can be extended, and the temperature of the temperature-varying chamber 1311 can be sufficiently reduced.

As shown in fig. 3, the side return air inlet 130a may be located near the front end of the side wall of the cooling compartment in which it is located to introduce the return air flow of the temperature-varying chamber 1311 into the cooling compartment from the front of the side of the cooling compartment, so as to extend the path of the return air flow entering the cooling compartment during its passage through the evaporator 101, thereby ensuring that the evaporator 101 can sufficiently cool the return air flow and ensuring the cooling effect of the refrigerator 10.

In some embodiments, as shown in fig. 1 to 3, there are two temperature change liners 131, two temperature change liners 131 are distributed along the transverse direction, one of the two transverse sidewalls of each temperature change liner 131 is formed with a side return air outlet, as shown in fig. 3, the transverse left sidewall of the temperature change liner 131 on the transverse left side is formed with a side return air outlet, and the transverse right sidewall of the temperature change liner 131 on the transverse right side is formed with a side return air outlet.

Correspondingly, there are two temperature-variable room return air ducts 1312, two temperature-variable room return air ducts 1312 correspond to the two temperature-variable inner containers 131 one by one, two side return air inlets 130a are provided, the two side return air inlets 130a are formed on two lateral side walls of the cooling chamber respectively, the two side return air inlets 130a correspond to the two temperature-variable room return air ducts 1312 one by one, and the two temperature-variable inner containers 131 convey return air flows thereof into the cooling chamber through the corresponding side return air inlets 130a through the corresponding temperature-variable room return air ducts 1312 respectively.

One of the variable temperature room return air ducts 1312 is located outside the lateral left side of the freezing inner container 130, the other variable temperature room return air duct 1312 is located outside the lateral right side of the freezing inner container 130, the variable temperature room return air duct 1312 located on the lateral left side connects and communicates the side return air outlet located on the lateral left side with the side return air inlet 130a located on the lateral left side, and the variable temperature room return air duct 1312 located on the lateral right side connects and communicates the side return air outlet located on the lateral right side with the side return air inlet 130a located on the lateral right side.

In some embodiments, at least one front return air inlet communicated with the freezing compartment 132 is formed at the front side of the cooling compartment, and the side return air inlet 130a for the return air flow of the temperature changing compartment 1311 to enter the cooling compartment is formed at the lateral side wall of the cooling compartment, so that the return air flow enters the cooling compartment at both the front side and the lateral side of the cooling compartment, the heat exchange efficiency of the return air flow and the evaporator 101 is increased, the temperatures of the freezing compartment 132 and the temperature changing compartment 1311 can be ensured, and the refrigeration effect of the refrigerator 10 is improved.

In some embodiments, the refrigerator 10 further includes a cover plate 102, the cover plate 102 includes a top cover 1021 above the evaporator and at least one front cover set, the front side of each front cover set is formed with the aforementioned at least one front return air inlet, the top cover 1021, the at least one front cover set and the rear wall, the bottom wall and the two lateral side walls of the freezing inner container 130 together define a cooling chamber, and accordingly, the lateral side walls of the freezing inner container 130 form the lateral side walls of the cooling chamber.

As shown in fig. 1, in the present embodiment, there are two front cover groups, and the two front cover groups are distributed in the transverse direction. While only one front cover group is shown on the lateral left side in fig. 2 to 5, the front side of each front cover group is formed with the aforementioned at least one front return air inlet.

In this embodiment, the refrigerator 10 further includes a vertical partition (not shown) extending from the top wall of the freezing chamber 130 to the upper surface of the top cover 1021 to divide the freezing chamber 132 into two freezing spaces distributed laterally. As shown in fig. 1, an air duct front cover plate of the freezing compartment air supply duct 141 is formed with a mounting groove 141c fitted with the vertical partition plate.

In this embodiment, two protecgulum groups are along horizontal direction interval distribution, vertical division board is including extending to the preceding shielding part that just is located evaporimeter 101 front side between two protecgulum groups, in order to shelter from the clearance between two protecgulum groups, thereby keep apart the air current in two refrigerated spaces of freezer completely, make the preceding return air entry entering cooling chamber of the refrigerated space that is located horizontal right side through the protecgulum group that is located horizontal right side, make the preceding return air entry entering cooling chamber of the refrigerated space that is located horizontal left side through the protecgulum group that is located horizontal left side.

Fig. 4 is a second partial schematic view of the refrigerator 10 according to one embodiment of the present invention, and fig. 5 is an exploded view of fig. 4.

In some embodiments, as shown in fig. 2-5, two front return air inlets, respectively designated as first front return air inlet 102a and second front return air inlet 102b, are formed in the front side of each front cover group.

As shown in fig. 5, each front cover group includes a front escutcheon 1022 and a front windshield cover 1023, a front end portion 10221 of the front escutcheon 1022 is located in front of and spaced from a front end of the evaporator 101, a front wall of the front end portion 10221 of the front escutcheon 1022 is formed with a first opening 1022a, and a rear side of the front end portion 10221 of the front escutcheon 1022 is open; the front end portion 10231 of the front windshield 1023 is located at the front end of the evaporator 101, and the front end portion 10231 of the front windshield 1023 is inserted forward into the front escutcheon 1022 from the rear side opening of the front end portion 10221 of the front escutcheon 1022 to divide the first opening 1022a into a first front return air inlet 102a located below and a second front return air inlet 102b located above.

The front trim cover 1022 and the front windshield 1023 are configured such that the return air flow of the freezer compartment 132 enters the cooling compartment through the first and second front return air inlets 102a and 102b and is cooled by the evaporator 101.

Specifically, the bottom wall of the front end portion 10231 of the front windshield cover 1023 and the bottom wall of the front end portion 10221 of the front trim cover 1022 define a first return air passage that is in communication with the first front return air inlet 102a and is located in front of the evaporator 101, that is, the front end portion 1023 of the front windshield cover 1023 is inserted into the front trim cover 1022 from a position where the rear side of the front end portion 10221 of the front trim cover 1022 is open, so that the bottom wall of the front end portion 10231 of the front windshield cover 1023 and the bottom wall of the front end portion 10221 of the front trim cover 1022 are spaced apart to form a first return air passage that is in communication with the first front return air inlet 102a, so that at least a part of the return air flow entering the first return air passage through the first front return air inlet 102a enters the evaporator 101 from the front of the evaporator 101 to be cooled by the evaporator 101.

A second opening 1023a penetrating the second front return air inlet 102b is formed in an upper section of the front end 10231 of the front windshield 1023, and the second opening 1023a is located above and in front of the evaporator 101. The lower surface of the top cover 1021 is spaced apart from the upper surface of the evaporator 101, and the front end of the top cover 1021 is located above and behind the front end of the evaporator 101, that is, the top cover 1021 does not completely shield the upper surface of the evaporator 101. And, a wind shielding material (not shown) is filled between the lower surface of the top cover 1021 and the upper surface of the evaporator 101, as shown in fig. 5, the top cover 1021 and the upper surface of the evaporator 101 are distributed at an interval to form a space 102c, and the space 102c is filled with a wind shielding material (the filled wind shielding material is hidden in fig. 2), which may be a wind shielding foam.

The front windshield 1023 includes a first shielding portion 10232 located at the rear upper side of the second opening 1023a, and the rear end of the first shielding portion 10232 abuts against the front end of the top cover 1021 to seal the portion of the upper surface of the evaporator 101 not shielded by the top cover 1021, so that a second return air passage penetrating the second opening 1023a and the second front return air inlet 102b is formed between the first shielding portion 10232 and the upper surface of the evaporator 101, and at least a part of the return air flow entering the second return air passage through the second front return air inlet 102b enters the evaporator 101 from above the evaporator 101 and is cooled by the evaporator.

Since the space 102c between the top cover 1021 and the top surface of the evaporator 101 is filled with a wind shielding material, the return air flow entering the second return air passage is prevented from flowing directly backward without passing through the evaporator 101, so that the return air flow entering the second return air passage flows downward from the top surface of the evaporator 101 into the evaporator 101.

As shown in fig. 5 and fig. 4, the front cover 1022 includes a second shielding portion 10222 bent and extended from the upper end rear edge of the front end portion 10221 to the rear and upward direction, the second shielding portion 10222 is located above the first shielding portion 10232 and extends to overlap with the upper surface of the top cover 1021 to completely shield the upper side of the first shielding portion 10232, and the shape of the second shielding portion 10222 is matched with the shape of the first shielding portion 10232, so that the second shielding portion 10222 is tightly matched with the first shielding portion 10232 to avoid air leakage.

Because the temperature difference between the front end surface of the evaporator 101 and the return air flow is large, the front end surface of the evaporator 101 is likely to frost.

If the front end face of the evaporator 101 is not frosted or the frosting amount is small, so that the front end face of the evaporator 101 can still pass through the airflow, a part of the return air flow of the freezing chamber 132 enters the first return air channel through the first front return air inlet 102a, a part of the return air flow of the freezing chamber enters the second return air channel through the second front return air inlet 102b, a part of the airflow entering the first return air channel enters the evaporator 101 from the front side of the evaporator 101 (i.e. from the front end face of the evaporator 101), is cooled by the evaporator 101, another part of the airflow entering the first return air channel further flows upwards to the second return air channel, and then flows downwards to the evaporator 101 from the second return air channel, so that a part of the return air flow enters the evaporator 101 from the front side of the evaporator 101, and a part of the return air flow enters the evaporator 101 from the upper side of the evaporator 101, thereby ensuring sufficient heat exchange between the return air flow and the evaporator 101, the refrigerating effect of the refrigerator 10 is improved.

If the front end of the evaporator 101 is frosted more heavily and the airflow cannot enter the evaporator 101, the return air flow of the freezing chamber 132 can enter the second return air channel through the second front return air inlet 102b located above, and then flow downward from the second return air channel and enter the evaporator 101 through the upper surface of the evaporator 101 for cooling, so that the refrigeration effect of the refrigerator 10 can still be ensured.

The refrigerator 10 of this embodiment, carry out special design through the structure to top cover 1021, preceding trim 1022 and preceding windshield 1023, the return air current of freezer 132 and the heat exchange efficiency of evaporimeter 101 have been guaranteed, the refrigeration effect of refrigerator 10 has been promoted, in addition, when the preceding terminal surface of evaporimeter 101 frosts, still can guarantee that the return air current can get into and be cooled off by evaporimeter 101 in evaporimeter 101, the problem of current refrigerator 10 because of evaporimeter 101 frosting leads to the refrigeration effect to reduce has been solved, the wholeness ability of refrigerator 10 has been promoted.

In the refrigerator 10 of the present embodiment, the refrigerating inner container 120 is located above the variable temperature inner container 131, and the refrigerating chamber 121 is defined in the refrigerating inner container 120. The refrigerator 10 of the present embodiment further includes a refrigerating evaporator (not shown) defined below an inner side of the rear wall of the refrigerating inner container 120, a refrigerating blower (not shown) and a refrigerating air supply duct (not shown) provided in the refrigerating evaporator chamber, the refrigerating air supply duct being provided inside the rear wall of the refrigerating inner container 120, having a refrigerating air supply inlet communicating with an air outlet end of the refrigerating blower and a refrigerating air supply outlet communicating with the refrigerating chamber 121, the refrigerating blower being configured to cause an air flow cooled by the refrigerating evaporator to flow into the refrigerating chamber 121 through the refrigerating air supply duct to adjust the temperature of the refrigerating chamber 121.

The front side of the refrigerated evaporator compartment is formed with at least one refrigerated return air inlet to direct the return air flow from the refrigerated compartment 121 through the refrigerated return air inlet into the refrigerated evaporator compartment for cooling by the refrigerated evaporator to create an air flow circulation between the refrigerated compartment 121 and the refrigerated evaporator compartment.

As is well known to those skilled in the art, the temperature within the refrigerated compartment 121 is generally between 2 ℃ and 10 ℃, preferably between 4 ℃ and 7 ℃. The temperature in the freezer compartment 132 is typically in the range of-22 c to-14 c. The temperature-changing chamber 1311 can be adjusted to-18 ℃ to 8 ℃ at will. The optimum storage temperatures for different kinds of articles are different and the suitable storage locations are different, for example, fruit and vegetable foods are suitable for storage in the refrigerating compartment 121 and meat foods are suitable for storage in the freezing compartment 132.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. The utility model provides a refrigerator of variable-temperature chamber lateral wall return air which characterized in that includes:

the cooling box comprises a temperature-changing liner positioned above the cooling chamber, a temperature-changing chamber is defined in the temperature-changing liner, and a side return air outlet is formed in at least one of two transverse side walls of the temperature-changing liner;

an evaporator disposed in the cooling chamber and configured to cool an airflow entering the cooling chamber;

and the variable-temperature chamber return air duct is arranged to communicate the side return air outlet with the cooling chamber so as to convey the return air flow of the variable-temperature chamber to the cooling chamber for cooling.

2. The refrigerator as claimed in claim 1, wherein the refrigerator further comprises a cover for covering the opening of the door

The side return air outlet is adjacent the front end of the side wall in which it is located.

3. The refrigerator as claimed in claim 1, wherein the refrigerator further comprises a cover for covering the opening of the door

At least one of the two transverse side walls of the cooling chamber is provided with a side return air inlet, the side return air inlets correspond to the side return air outlets one to one, and the side return air inlets are communicated with the side return air outlets through the variable temperature chamber return air duct.

4. The refrigerator as claimed in claim 3, wherein the refrigerator further comprises a cover for covering the opening of the door

The side return air inlet is adjacent the front end of the side wall in which it is located.

5. The refrigerator as claimed in claim 3, wherein the refrigerator further comprises a cover for covering the opening of the door

The two temperature-changing inner containers are distributed along the transverse direction, the transverse left side wall of the temperature-changing inner container positioned on the transverse left side is provided with the side return air outlet, and the transverse right side wall of the temperature-changing inner container positioned on the transverse right side is provided with the side return air outlet;

the two temperature-variable chamber return air ducts correspond to the two temperature-variable inner containers one by one; the number of the side air return inlets is two, and the two side air return inlets are formed in two transverse side walls of the cooling chamber respectively;

the side return air outlets of the two variable temperature inner containers are respectively communicated with the corresponding side return air inlets through the corresponding variable temperature chamber return air ducts.

6. The refrigerator of claim 1, wherein the cabinet further comprises:

the freezing inner container is positioned below the temperature changing inner container, and the freezing inner container is internally limited with the cooling chamber positioned at the bottom and the freezing chamber positioned above the cooling chamber.

7. The refrigerator as claimed in claim 6, wherein the refrigerator further comprises a cover for covering the opening of the door

At least one front return air inlet communicated with the freezing chamber is formed in the front side of the cooling chamber, so that return air flow of the freezing chamber enters the cooling chamber through the at least one front return air inlet to be cooled.

8. The refrigerator according to claim 7, further comprising:

a top cover positioned above the evaporator;

at least one front cover group, wherein the front side of each front cover group is provided with at least one front return air inlet;

the top cover, the at least one front cover group and the rear wall, the bottom wall and the two transverse side walls of the freezing inner container jointly define the cooling chamber;

the lateral side wall of the freezing inner container forms the lateral side wall of the cooling chamber.

9. The refrigerator as claimed in claim 8, wherein the refrigerator further comprises a cover for covering the opening of the door

The front cover group is two, and the two front cover groups are distributed along the transverse direction.

10. The refrigerator according to claim 6, further comprising:

a blower fan provided in the cooling compartment, configured to draw a return air flow into the cooling compartment to be cooled by the evaporator, and to cause the cooled air flow to the freezing compartment and the temperature-changing compartment;

the freezing chamber air supply duct is communicated with the air outlet end of the air supply fan and is configured to convey part of the airflow cooled by the evaporator into the freezing chamber;

and the variable-temperature chamber air supply duct is configured to be in controllable communication with the freezing chamber air supply duct so as to convey part of air flow in the freezing chamber air supply duct into the variable-temperature chamber.

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