CN209893737U - Refrigerator with temperature-changing chamber for returning air on side wall of cooling chamber - Google Patents

Abstract

The utility model provides a refrigerator with a temperature-changing chamber for returning air on the side wall of a cooling chamber, which comprises a freezing inner container positioned below and a temperature-changing inner container positioned above the freezing inner container, wherein the cooling chamber positioned at the bottom and a freezing chamber positioned above the cooling chamber are limited in the freezing inner container, and the temperature-changing chamber is limited in the temperature-changing inner container; the front side of cooling chamber is formed with at least one preceding return air entry with the freezer intercommunication to make the return air current of freezer get into the cooling chamber through at least one preceding return air entry and cool off, at least one lateral wall is formed with side return air entry in two horizontal lateral walls of cooling chamber, and the refrigerator still includes the temperature-changing room return air wind channel with the inner space of alternating temperature inner bag and side return air entry intercommunication, cools off in order to carry the return air current of temperature-changing room to the cooling chamber. The utility model discloses an in the refrigerator, the front side of cooling chamber and horizontal lateral part all have the return air current to get into the cooling chamber in, have increased the heat exchange efficiency of return air current and evaporimeter to can guarantee the refrigeration effect of refrigerator.

Description

Refrigerator with temperature-changing chamber for returning air on side wall of cooling chamber

Technical Field

The utility model relates to a household electrical appliances technical field especially relates to a refrigerator of alternating temperature room at the lateral wall return air of cooling chamber.

Background

In the existing refrigerator, a freezing chamber is generally positioned at the lower part of the refrigerator, a cooling chamber is positioned at the rear part of the outer side of the freezing chamber, a press chamber is positioned at the rear part of the freezing chamber, and the freezing chamber needs to give way for the press chamber, so that the freezing chamber has special shape and the depth of the freezing chamber is limited.

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 refrigerator comprises a box body, a refrigerating chamber and a freezing chamber, wherein the box body comprises a refrigerating liner positioned below and a variable temperature liner positioned above the refrigerating liner;

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

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;

at least one of the two transverse side walls of the cooling chamber is provided with a side return air inlet, and the refrigerator also comprises a variable temperature chamber return air duct which communicates the inner space of the variable temperature inner container with the side return air inlet so as to convey the return air flow of the variable temperature chamber into the cooling chamber for cooling.

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-variable inner containers is two, and the two temperature-variable inner containers are distributed along the transverse direction;

the two temperature-variable chamber return air ducts correspond to the two temperature-variable inner containers one by one;

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

the two temperature-changing inner containers respectively convey return air flow of the temperature-changing inner containers to the cooling chamber through corresponding side return air inlets through corresponding temperature-changing chamber return air channels.

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, two front return air inlets are formed in the front side of each front cover group, and the two front return air inlets are respectively marked as a first front return air inlet and a second front return air inlet;

the front cover group includes:

a front trim cover, the front end of which is positioned in front of the front end of the evaporator and is spaced from the front end of the evaporator, the front wall of the front end of which is formed with a first opening, and the rear side of the front end of which is open;

and the front end part of the front air channel cover is positioned at the front end of the evaporator, and the front end part of the front air channel cover is inserted into the front decorative cover forwards from the rear side opening part of the front end part of the front decorative cover so as to divide the first opening into a first front return air inlet positioned below and a second front return air inlet positioned above.

Optionally, a first return air channel communicated with the first front return air inlet is defined by the bottom wall of the front end part of the front air channel cover and the bottom wall of the front end part of the front decorative cover, and the first return air channel is located in front of the evaporator, so that at least part of return air flow entering the first return air channel through the first front return air inlet enters the evaporator from the front of the evaporator and is cooled by the evaporator.

Optionally, a section of the front end of the front air duct cover located above is formed with a second opening communicated with the second front return air inlet, and the second opening is located above and in front of the evaporator;

the lower surface of the top cover and the upper surface of the evaporator are distributed at intervals, the front end of the top cover is positioned at the rear upper part of the front end of the evaporator, and a wind shielding material is filled between the lower surface of the top cover and the upper surface of the evaporator;

preceding wind channel lid is including the first portion of shielding that is located second opening back upper place, the rear end of the first portion of shielding and the front end butt of top cap to form the second return air passageway that link up with the second opening between the upper surface of first portion of shielding and evaporimeter, thereby make the at least partial return air current that gets into the second return air passageway through the second before the second get into the evaporimeter in by the evaporimeter cool off.

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.

Optionally, the refrigerator further comprises:

the refrigerating inner container is positioned above the temperature changing inner container, and a refrigerating chamber is limited in the refrigerating inner container.

The utility model discloses a refrigerator is 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. In addition, return air flows enter the cooling chamber from the front side and the transverse side of the cooling chamber, so that the heat exchange efficiency of the return air flows and the evaporator is improved, and the refrigeration effect of the refrigerator can be ensured.

Further, the utility model discloses an in the refrigerator, carry out special design through the structure to top cap, preceding trim cover and preceding wind channel lid, guaranteed the return air current of freezer and the heat exchange efficiency of evaporimeter, promoted the refrigeration effect of refrigerator, in addition, when the preceding terminal surface of evaporimeter frosts, still can guarantee that the return air current cools off by the evaporimeter in can getting into the evaporimeter, solved current refrigerator and led to the problem that refrigeration effect reduces because of the evaporimeter frosts, promoted the wholeness ability 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, in which a refrigerating chamber door body, a variable temperature chamber door body, and a freezing chamber door body are hidden;

fig. 2 is a schematic perspective view of a refrigerator according to an embodiment of the present invention, in which portions of a refrigerating chamber door body, a temperature changing chamber door body, a freezing chamber door body, and a cover plate are hidden;

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;

FIG. 5 is an exploded view of FIG. 4;

fig. 6 is a third partially exploded schematic view of a refrigerator according to an embodiment of the present invention; and

fig. 7 is a fourth partial schematic view of a refrigerator according to an embodiment of the present invention.

Detailed Description

The present embodiment provides a refrigerator 10, and the refrigerator 10 according to the embodiment of the present invention is described below with reference to fig. 1 to 7. In the following description, the orientation or positional relationship indicated by "front", "rear", "upper", "lower", "left", "right", etc. is an orientation based on the refrigerator 10 itself as a reference, the "front", "rear" is a direction indicated in fig. 6 and 7, as shown in fig. 1, the "lateral" refers to a direction parallel to the width direction of the refrigerator 10, the "left" is a lateral left of the refrigerator with reference to the refrigerator 10, and the "right" is a lateral right of the refrigerator with reference to the refrigerator 10.

Fig. 1 is a front view of a refrigerator 10 according to an embodiment of the present invention, and fig. 2 is a schematic perspective view of the refrigerator 10 according to an embodiment of the present invention. In fig. 1 and 2, a refrigerating chamber door, a temperature changing chamber door, and a freezing chamber door are hidden to show the internal structure of the refrigerator 10.

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 compartment, and the door body is hidden in fig. 1 and 2 to show the internal structure of the refrigerator 10.

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 104, a condenser 105, a throttling element (not shown), and the like. The evaporator 101 is connected to the compressor 104, the condenser 105, and the throttle element via refrigerant lines to constitute a refrigeration cycle, and is cooled when the compressor 104 is started to cool air flowing therethrough.

In particular, in the present embodiment, as shown in fig. 1 and 2, the freezing liner 130 is located at the lower portion of the cabinet 100, in which a cooling chamber at the bottom is defined, the evaporator 101 is disposed in the cooling chamber to cool the airflow entering the cooling chamber, and the freezing chamber 132 defined by the freezing liner 130 is located above the cooling chamber such that the cooling chamber is at the lowermost portion of the cabinet 100.

The evaporator 101 may be disposed in the cooling chamber in a flat cubic shape, i.e., the long and wide sides of the evaporator 101 are parallel to the horizontal plane, the thickness side is 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 capacity of the freezing chamber 132 in the upper portion of the cooling chamber is ensured.

The front side of the cooling compartment is formed with at least one front return air inlet communicating with the freezing compartment 132, so that the return air flow of the freezing compartment 132 is introduced into the cooling compartment through the at least one front return air inlet to be cooled by the evaporator 101, thereby forming an air flow circulation between the cooling compartment and the freezing compartment 132.

In the conventional refrigerator 10 in which the freezing chamber 132 is located at the lowermost portion of the refrigerator 10 and the compressor compartment is located at the rear portion of the freezing chamber 132, the freezing chamber 132 is inevitably made as a special-shaped space giving way to the compressor compartment, reducing the storage capacity of the freezing chamber 132, and also causing the following problems. On one hand, the position of the freezing chamber 132 is low, so that a user needs to bend down or crouch down greatly to carry out the operation of taking and placing articles in the freezing chamber 132, which is inconvenient for the user to use, especially for the old; on the other hand, 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; furthermore, since the freezing chamber 132 is shaped and not a rectangular space, it is inconvenient to place some large and difficult-to-divide objects in the freezing chamber 132.

And the refrigerator 10 of this embodiment is through injecing the cooling chamber in freezing inner bag 130's bottom space to injecing freezer 132 in the top of cooling chamber, make the cooling chamber occupy the lower part space in freezing inner bag 130, raised freezer 132, reduce the degree of bowing that the user got when putting article operation to freezer 132, promote user's use experience. Meanwhile, the press cabin can be positioned at the rear lower part of the cooling chamber, and the freezing chamber 132 does not need to give way for the press cabin any more, so that the freezing chamber 132 is a rectangular space, the stacked storage of the articles can be changed into the flat-spread storage, the articles can be conveniently searched by a user, and the time and the energy of the user are saved; 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.

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

More particularly, as shown in fig. 1 to 3, the refrigerator 10 of the present embodiment further includes a temperature-changing liner 131 located above the freezing liner 130, 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 cooling compartment is formed with a side return air inlet 130a, and the refrigerator 10 further includes a variable temperature compartment return air duct 1312 for communicating the internal space of the variable temperature inner container 131 with the side return air inlet 130a, so that the return air flow of the variable temperature compartment 1311 is delivered into the cooling compartment to be cooled by the evaporator 101, thereby forming an air flow circulation between the variable temperature compartment 1311 and the cooling compartment.

In the refrigerator 10 of the embodiment, the temperature-changing liner 131 is located above the freezing liner 130 and is independently arranged from the freezing liner 130, so that the temperature-changing chamber 1311 does not occupy the space of the freezing liner 130 any more, and the storage volume of the freezing chamber 132 is increased; in addition, at least one front return air inlet communicated with the freezing chamber 132 is formed at the front side of the cooling chamber, and a side return air inlet 130a for the return air flow of the temperature change chamber 1311 to enter the cooling chamber is formed at the transverse side wall of the cooling chamber, so that the return air flow enters the cooling chamber at the front side and the transverse side of the cooling chamber, the heat exchange efficiency of the return air flow and the evaporator 101 is increased, and the refrigeration effect of the refrigerator 10 can be improved.

In some embodiments, as shown in fig. 3, the side return air inlet 130a is located adjacent to the front end of the side wall of the cooling compartment in which it is located to direct the return air flow from the temperature change chamber 1311 into the cooling compartment from the front of the side of the cooling compartment to extend the path of the return air flow entering the cooling compartment during its passage through the evaporator 101 to ensure that the evaporator 101 can adequately cool the return air flow to ensure the cooling effect of the refrigerator 10.

As shown in fig. 3, at least one of the two lateral side walls of the temperature change liner 131 is formed with a side return air outlet (not numbered), and the temperature change chamber return air duct is configured to communicate the side return air outlet with the side return air inlet 130a so as to convey the return air flow of the temperature change chamber 1311 to the cooling chamber for cooling.

The side return air outlets and the side return air inlets 130a should be in one-to-one correspondence, and for convenience of arrangement of the variable temperature compartment return air duct 1312, the side return air outlets and the corresponding side return air inlets 130a should be located on the same lateral side, for example, if the side return air outlets and the side return air inlets 130a are both one, and if the side return air outlets are formed on the lateral left side wall of the variable temperature inner container 131, the side return air inlets 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 cooling inner container 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 variable temperature chamber air supply duct is located above the freezing liner 130 and in the foaming layer behind the variable temperature liner 131, the rear wall of the variable temperature liner 131 is formed with an air supply inlet 131a communicated with the air outlet end of the variable temperature chamber air supply duct, the air inlet end of the variable temperature 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 liner 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 variable temperature chamber air supply duct with the freezing chamber air supply duct 141, and therefore partial air flow of the freezing chamber air supply duct 141 is conveyed into the variable temperature chamber 1311 through the variable temperature chamber air supply duct.

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.

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, and accordingly, there are two temperature change room return air ducts 1312, two temperature change room return air ducts 1312 correspond to the two temperature change liners 131 one to one, two side return air inlets 130a are provided, the two side return air inlets 130a are respectively formed on two transverse side walls of the cooling compartment, the two side return air inlets 130a correspond to the two temperature change room return air ducts 1312 one to one, and the two temperature change liners 131 respectively transmit their return air flows to the cooling compartment through the corresponding side return air inlets 130a through the corresponding temperature change room return air ducts 1312.

One of the two lateral side walls of each temperature change liner 131 is formed with a side return air outlet, as shown in fig. 3, the lateral left side wall of the temperature change liner 131 located on the lateral left side is formed with a side return air outlet, and the lateral right side wall of the temperature change liner 131 located on the lateral right side is formed with a side return air outlet.

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, the refrigerator 10 further includes a cover plate 102, the cover plate 102 includes a top cover 1021 positioned above the evaporator and at least one front cover set, a 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 a rear wall, a bottom wall and 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 constitute 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 right 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 front cover groups are along horizontal direction interval distribution, vertical division board is including extending to the preceding shielding part that just is located the evaporimeter 101 front side between two front cover groups, in order to shelter from the clearance between two front cover groups, thereby keep apart the air current in two refrigerated spaces of freezer 132 completely, make the preceding return air entry entering cooling chamber through the front return air entry that is located the front cover group on horizontal right side of the return air that is located the refrigerated space on horizontal right side, make the preceding return air entry entering cooling chamber through the front return air entry that is located the front cover group on horizontal left side of the return air that is located the refrigerated space on horizontal left side.

Fig. 4 is a second partial schematic view of the refrigerator 10 according to an 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 duct cover 1023, a front end portion 10221 of the front escutcheon 1022 is located in front of a front end of the evaporator 101, the front end portion 10221 is spaced from the 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 air duct cover 1023 is located at the front end of the evaporator 101, and the front end portion 10231 of the front air duct cover 1023 is inserted forward into the front trim cover 1022 from the rear side opening of the front end portion 10221 of the front trim cover 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.

Two front return air inlets which are vertically distributed are formed at the front side of the front cover group, so that the visual appearance is attractive, and fingers or foreign matters of children can be effectively prevented from entering the cooling chamber; moreover, the two air return areas distributed up and down can enable the air return to flow through the evaporator 101 more uniformly after entering the cooling chamber, so that the problem that the front end face of the evaporator 101 is easy to frost can be avoided to a certain extent, the heat exchange efficiency can be improved, the defrosting period can be prolonged, and the energy conservation and the high efficiency are realized.

Specifically, the bottom wall of the front end portion 10231 of the front air duct cover 1023 and the bottom wall of the front end portion 10221 of the front decorative cover 1022 define a first return air passage penetrating the first front return air inlet 102a, and the first return air passage is located in front of the evaporator 101, that is, the front end portion 10231 of the front air duct cover 1023 is inserted into the front decorative cover 1022 from the rear side opening of the front end portion 10221 of the front decorative cover 1022 at a position such that the bottom wall of the front end portion 10231 of the front air duct cover 1023 and the bottom wall of the front end portion 10221 of the front decorative cover 1022 are spaced apart from each other to form a first return air passage penetrating 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 air duct cover 1023 at the front end 10231, 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 air duct cover 1023 includes a first shielding portion 10232 located at the rear upper side of the second opening 1023a, 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 to be 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.

Since the temperature difference between the ambient temperature of the front end surface of the evaporator 101 and the temperature of the return air flow is large, the front end surface of the evaporator 101 is likely to be frosted.

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 wind channel lid 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 cool 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.

Fig. 6 is a third partial exploded view of the refrigerator 10 according to an embodiment of the present invention, and fig. 7 is a fourth partial schematic view of the refrigerator 10 according to an embodiment of the present invention.

The bottom of the box body 100 is limited with a press cabin which is arranged at the rear lower part of the cooling chamber, as mentioned above, the freezing chamber 132 does not need to give way for the press cabin, the depth of the freezing chamber 132 is ensured, and the large-size and difficult-to-cut articles can be placed conveniently.

As shown in fig. 6, the refrigerator 10 further includes a heat dissipation fan 106, the heat dissipation fan 106 may be an axial flow fan, and the compressor 104, the heat dissipation fan 106, and the condenser 105 are sequentially arranged in the press compartment at intervals along the transverse direction.

In some embodiments, a section 1162 of the rear wall of the press compartment corresponding to the compressor 104 is formed with at least one rear air outlet hole 1162 a.

In fact, before the present invention, the general design idea of those skilled in the art is to provide a rear air inlet hole facing the condenser 105 and a rear air outlet hole 1162a facing the compressor 104 on the rear wall of the compressor compartment, and to complete the circulation of the heat dissipation airflow at the rear part of the compressor compartment; or the front wall and the rear wall of the press cabin are respectively provided with a vent hole to form a heat dissipation circulation air path in the front-back direction. In the face of the problem of increasing the heat dissipation effect of the compressor compartment, it is common for those skilled in the art to increase the number of the rear air inlet hole and the rear air outlet hole 1162a on the rear wall of the compressor compartment to enlarge the ventilation area, or to increase the heat exchange area of the condenser 105, for example, to use a U-shaped condenser with a larger heat exchange area.

While the applicant of the present invention has creatively recognized that the heat exchange area of the condenser 105 and the ventilation area of the compressor compartment are not as large as possible, in the conventional design scheme of increasing the heat exchange area of the condenser 105 and the ventilation area of the compressor compartment, the problem of uneven heat dissipation of the condenser 105 is brought about, which adversely affects the refrigeration system of the refrigerator 10. Therefore, the utility model discloses the applicant jumps out conventional design thinking, creatively proposes a new scheme that is different from conventional design, as shown in fig. 7, the diapire of box is injectd the bottom air intake 110a that closes on condenser 105 that transversely arranges and is closed on the bottom air outlet 110b of compressor 104, refrigerator 10 accomplishes the circulation of heat dissipation air current in its bottom, make full use of this space between refrigerator 10 and the holding surface, need not to increase the distance of the back wall and the cupboard of refrigerator 10, when having reduced the shared space of refrigerator 10, guarantee the good heat dissipation of press cabin, fundamentally has solved the heat dissipation of press cabin of embedded refrigerator 10 and the pain point that can't obtain the balance between the space occupies, have especially important meaning.

The heat dissipation fan 106 is configured to force ambient air around the bottom intake vent 110a to enter the compressor compartment from the bottom intake vent 110a, and to sequentially pass through the condenser 105, the compressor 104, and then to flow from the bottom intake vent 110b to the external environment to dissipate heat from the compressor 104 and the condenser 105.

In the vapor compression refrigeration cycle, the surface temperature of the condenser 105 is generally lower than the surface temperature of the compressor 104, so in the above process, the outside air is first made to cool the condenser 105 and then the compressor 104.

Further in particular, in a preferred embodiment of the invention, the plate section 1161 of the back plate 116 (of the rear wall of the nacelle) facing the condenser 105 is a continuous plate surface, that is to say the plate section 1161 of the back plate 116 facing the condenser 105 is free of louvers.

The applicant of the present invention has creatively recognized that even on the premise of not increasing the heat exchange area of the condenser 105, the ventilation area of the reduced compressor compartment in the abnormal state can form a better heat dissipation airflow path, and a better heat dissipation effect can still be achieved.

The utility model discloses in the preferred scheme, the applicant breaks through conventional design, the back wall (backplate 116) of pressing the cabin and the plate section 1161 that condenser 105 corresponds design for continuous face, the heat dissipation air current that will get into in the pressing machine cabin seals in condenser 105 department for the ambient air who gets into by end air intake 110a concentrates on condenser 105 department more, the heat transfer homogeneity of each condensation zone of condenser 105 has been guaranteed, and be favorable to forming better heat dissipation airflow path, can reach better radiating effect equally.

Moreover, because the plate section 1161 of the back plate 116 facing the condenser 105 is a continuous plate surface and has no air inlet hole, it is avoided that in the conventional design, the hot air blown out from the press cabin is not cooled by the ambient air in time and enters the press cabin again due to the concentration of the outlet air and the inlet air at the rear part of the press cabin, and the heat exchange of the condenser 105 is adversely affected, thereby ensuring the heat exchange efficiency of the condenser 105.

In some embodiments, both lateral side walls of the nacelle are formed with one side vent 119a, the side vent 119a may be covered with a vent flap 108, the vent flap 108 is formed with a grill-like vent aperture; the outer case of the refrigerator 10 includes two case side plates 111 in a lateral direction, the two case side plates 111 extend vertically to constitute two side walls of the refrigerator 10, and the two case side plates 111 respectively form one side opening 111a communicating with a corresponding side vent hole 119a so that the heat radiation airflow flows to the outside of the refrigerator 10. Therefore, the heat dissipation path is further increased, and the heat dissipation effect of the compressor cabin is ensured.

More particularly, the condenser 105 includes a first straight section 1051 extending laterally, a second straight section 1052 extending fore and aft, and a transition curve (not numbered) connecting the first straight section 1051 and the second straight section 1052, thereby forming an L-shaped condenser 105 with an appropriate heat exchange area. The plate segment 1161 of the rear wall (back plate 116) of the aforementioned nacelle corresponding to the condenser 105 is the plate segment 1161 of the back plate 116 facing the first straight segment 1051.

The ambient air flow entering from the side vent 119a directly exchanges heat with the second straight section 1052, and the ambient air entering from the bottom air inlet 110a directly exchanges heat with the first straight section 1051, so that the ambient air entering the cabin of the press is further concentrated at the condenser 105, and the uniformity of the overall heat dissipation of the condenser 105 is ensured.

Further in particular, as shown in fig. 6 and 7, the box 100 comprises a bottom plate, a supporting plate 112, two side plates 119 and a vertically extending back plate 116, the supporting plate 112 forming the bottom wall of the press cabin for carrying the compressor 104, the radiator fan 106 and the condenser 105, the two side plates 119 respectively forming the two lateral side walls of the press cabin, and the vertically extending back plate 116 forming the rear wall of the press cabin.

Further specifically, the bottom plate includes a bottom horizontal section 113 located at the front side of the bottom and a bent section extending from the rear end of the bottom horizontal section 113 to the rear and upward, the bent section extends to the upper side of the supporting plate 112, and the compressor 104, the heat dissipation fan 106 and the condenser 105 are arranged on the supporting plate 112 at intervals in the transverse direction, and are located in the space defined by the supporting plate 112, the two side plates, the back plate 116 and the bent section.

The supporting plate 112 and the bottom horizontal section 113 together form a bottom wall of the box 100, and the supporting plate 112 and the bottom horizontal section 113 are spaced apart from each other to define a bottom opening by using a rear end of the bottom horizontal section 113 and a front end of the supporting plate 112, wherein the bent section has an inclined section 114 located above the bottom air inlet 110a and the bottom air outlet 110 b. The two side plates respectively extend upwards from two sides of the supporting plate 112 in the transverse direction to two sides of the bending section in the transverse direction so as to seal two sides of the press cabin in the transverse direction; the back plate 116 extends upward from the rear end of the support plate 112 to the rear end of the bent section.

Specifically, the bending section may include a vertical section 1131, the aforementioned inclined section 114, and a top horizontal section 115, wherein the vertical section 1131 extends upward from the rear end of the bottom horizontal section 113, the inclined section 114 extends upward from the upper end of the vertical section 1131 to the top of the supporting plate 112, and the top horizontal section 115 extends rearward from the rear end of the inclined section 114 to the back plate to shield the top of the compressor 104, the heat dissipation fan 106, and the condenser 105.

The box 100 further includes a partition 117, the partition 117 is disposed at the rear of the bending section, the front portion of the partition 117 is connected to the rear end of the bottom horizontal section 113, the rear portion of the partition is connected to the front end of the supporting plate 112, and the partition is configured to divide the bottom opening into a bottom air inlet 110a and a bottom air outlet 110b which are transversely arranged.

As can be seen from the foregoing, the bottom air inlet 110a and the bottom air outlet 110b of the present embodiment are defined by the partition 117, the supporting plate 112, and the bottom horizontal section 113, so as to form the groove-shaped bottom air inlet 110a and the bottom air outlet 110b with larger opening sizes, increase the air inlet area and the air outlet area, reduce the air inlet resistance, make the airflow flow more smooth, and make the manufacturing process simpler, and make the overall stability of the cabin pressing chamber stronger.

In particular, the applicant of the present invention has innovatively recognized that the slope structure of the inclined section 114 can guide and rectify the intake airflow, so that the airflow entering from the bottom air inlet 110a flows to the condenser 105 more intensively, and the airflow is prevented from being too dispersed to pass through the condenser 105 more, thereby further ensuring the heat dissipation effect of the condenser 105; meanwhile, the slope of the inclined section 114 guides the outlet airflow of the bottom outlet 110b to the front side of the ground outlet, so that the outlet airflow flows out of the cabin more smoothly, thereby further improving the smoothness of airflow circulation.

More particularly, in the preferred embodiment, the angle of the angled section 114 is less than 45 ° from horizontal, and in this embodiment, the angled section 114 is more effective in directing and rectifying the airflow.

Further, unexpectedly, the inventors of the present application have innovatively recognized that the slope of the sloped section 114 provides a better suppression of airflow noise, and in prototype testing, the cabin noise of a press having the specially designed sloped section 114 was reduced by more than 0.65 db.

In addition, in the conventional refrigerator 10, the bottom of the cabinet 100 generally has a plate-shaped bearing plate, the compressor 104 is disposed inside the plate-shaped bearing plate, and vibration generated during operation of the compressor 104 has a large influence on the bottom of the cabinet 100. In the embodiment, as mentioned above, the bottom of the box 100 is constructed into a three-dimensional structure by the bottom plate and the supporting plate 112 with special structures, so as to provide an independent three-dimensional space for the arrangement of the compressor 104, and the supporting plate 112 is used for carrying the compressor 104, thereby reducing the influence of the vibration of the compressor 104 on other parts of the bottom of the box 100. In addition, by designing the box body 100 into the above-mentioned ingenious special structure, the structure of the bottom of the refrigerator 10 is compact and reasonable in layout, the whole volume of the refrigerator 10 is reduced, meanwhile, the space at the bottom of the refrigerator 10 is fully utilized, and the heat dissipation efficiency of the compressor 104 and the condenser 105 is ensured.

Further, particularly, the upper end of the condenser 105 is provided with a wind shielding member 1056, the wind shielding member 1056 may be a wind shielding sponge, which fills the space between the upper end of the condenser 105 and the bent section, that is, the wind shielding member 1056 covers the upper ends of the first straight section 1051, the second straight section 1052 and the transition curved section, and the upper end of the wind shielding member 1056 should abut against the bent section to seal the upper end of the condenser 105, so that part of the air entering the compressor compartment passes through the space between the upper end of the condenser 105 and the bent section without passing through the condenser 105, and thus the air entering the compressor compartment passes through the condenser 105 for heat exchange as much as possible, and further improving the heat dissipation effect of the condenser 105.

In some embodiments, the refrigerator 10 further includes a wind shielding strip 107 extending forward and backward, the wind shielding strip 107 is located between the bottom wind inlet 110a and the bottom wind outlet 110b, extends from the lower surface of the bottom horizontal section 113 to the lower surface of the supporting plate 112, and is connected to the lower end of the partition 117, so as to completely separate the bottom wind inlet 110a from the bottom wind outlet 110b by the wind shielding strip 107 and the partition 117, when the refrigerator 10 is placed on a supporting surface, the space between the bottom wall of the box 100 and the supporting surface is laterally divided, so as to allow the external air to enter the compressor compartment through the bottom wind inlet 110a located on one lateral side of the wind shielding strip 107 and to sequentially flow through the condenser 105 and the compressor 104, and finally flow out from the bottom wind outlet 110b located on the other lateral side of the wind shielding strip 107, so as to completely separate the bottom wind inlet 110a from the bottom wind outlet 110b, and ensure that the external air entering the condenser 105, further ensuring the heat dissipation efficiency.

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. A refrigerator with a temperature-variable chamber for returning air on the side wall of a cooling chamber is characterized by comprising:

the refrigerator comprises a box body, a refrigerating chamber and a freezing chamber, wherein the box body comprises a refrigerating liner positioned below and a variable temperature liner positioned above the refrigerating liner, a cooling chamber positioned at the bottom and a freezing chamber positioned above the cooling chamber are defined in the refrigerating liner, and a variable temperature chamber is defined in the variable temperature liner;

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

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;

at least one of the two transverse side walls of the cooling chamber is provided with a side return air inlet, and the refrigerator further comprises a variable temperature chamber return air duct which communicates the inner space of the variable temperature liner with the side return air inlet so as to convey the return air flow of the variable temperature chamber into 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 inlet 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

The two temperature-changing inner containers are distributed along the transverse direction;

the two temperature-variable chamber return air ducts correspond to the two temperature-variable inner containers one by one;

the two side return air inlets are formed in the two transverse side walls of the cooling chamber respectively and correspond to the two temperature-variable chamber return air channels one by one;

and the two temperature-changing inner containers respectively convey return air flow of the temperature-changing inner containers to the cooling chamber through the corresponding side return air inlets through the corresponding temperature-changing chamber return air channels.

4. The refrigerator according to claim 1, 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.

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

Two front return air inlets are formed in the front side of each front cover group, and are respectively marked as a first front return air inlet and a second front return air inlet;

the front cover group includes:

a front trim cover having a front end portion positioned in front of the front end of the evaporator and spaced apart from the front end of the evaporator, a front wall of the front end portion having a first opening formed therein, and a rear side of the front end portion being open;

and the front end part of the front air channel cover is positioned at the front end of the evaporator, and the front end part of the front air channel cover is inserted into the front decorative cover forwards from the rear side opening part of the front end part of the front decorative cover so as to divide the first opening into the first front return air inlet positioned below and the second front return air inlet positioned above.

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

A first return air channel communicated with the first front return air inlet is defined by the bottom wall of the front end part of the front air channel cover and the bottom wall of the front end part of the front decorative cover, and the first return air channel is positioned in front of the evaporator, so that at least part of return air flow entering the first return air channel through the first front return air inlet enters the evaporator from the front of the evaporator and is cooled by the evaporator.

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

A second opening communicated with the second front return air inlet is formed in the section, positioned above the front end part of the front air channel cover, and the second opening is positioned in front of and above the evaporator;

the lower surface of the top cover and the upper surface of the evaporator are distributed at intervals, the front end of the top cover is positioned at the rear upper part of the front end of the evaporator, and a wind shielding material is filled between the lower surface of the top cover and the upper surface of the evaporator;

the front air duct cover comprises a first shielding part located above and behind the second opening, the rear end of the first shielding part is abutted to the front end of the top cover, a second air return channel communicated with the second opening is formed between the first shielding part and the upper surface of the evaporator, and therefore at least part of air return airflow entering the second air return channel through the second front air return inlet is cooled by the evaporator when entering the evaporator.

8. The refrigerator as claimed in claim 4, 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.

9. The refrigerator according to claim 1, 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

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.

10. The refrigerator according to claim 1, further comprising:

and the refrigerating liner is positioned above the temperature changing liner, and a refrigerating chamber is limited in the refrigerating liner.

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