CN115682556A - Refrigerating and freezing device - Google Patents

Abstract

The present invention relates to a refrigerating and freezing device, comprising: the refrigerator comprises a box body, a door body and a door body, wherein at least one storage chamber and a cooling chamber positioned below the at least one storage chamber are defined in the box body; and two evaporators arranged in the cooling chamber side by side and at intervals in a lateral direction of the case, each of the evaporators being configured to cool an air flow passing therethrough. The bottom wall of the cooling chamber is arranged to extend obliquely downwards from two sides to the middle in the transverse direction of the box body and extend obliquely downwards from front to back in the depth direction of the box body; the outlet has been seted up at the rear side middle part of cooling chamber, and outlet department is connected with the drain pipe, and the drain pipe extends to the outside of cooling chamber to through the comdenstion water that outlet and drain pipe discharge two evaporimeters produced. Two evaporators share one water outlet, so that the number of water discharge pipes is reduced, and the structure is simpler. Because the water outlet is arranged at the rearmost end of the cooling chamber, the extension path of the water outlet pipe is shortened, and the structural stability of the water outlet pipe is improved.

Description

Refrigerating and freezing device

Technical Field

The invention relates to the field of household appliances, in particular to a refrigerating and freezing device.

Background

The cooling chamber of a common cold storage and freezing device is usually positioned at the rear of the freezing chamber, the compressor bin is positioned at the lower rear part of the freezing chamber, and the freezing chamber needs to give way for the compressor bin, so that the abnormal shape is presented, and the depth of the freezing chamber is limited.

In order to solve the problems, the refrigerator with the whole bottom of the cooling chamber is provided in the prior art, the freezing chamber is arranged below the freezing chamber, the occupation of the rear space of the freezing chamber is changed into the occupation of the lower space of the freezing chamber, so that the special-shaped space of the freezing chamber is relieved, and the operation of taking and placing articles by a user is facilitated. In such a refrigerator, an evaporator is horizontally or obliquely disposed in a cooling chamber, and a blower fan is disposed at a rear side of the evaporator. The compressor bin is located behind and below the whole box body, so that the rear part of the cooling chamber is inclined upwards, and condensed water cannot flow to the rear part of the cooling chamber. Therefore, the cooling chamber water outlet of such a refrigerator is usually disposed in the middle of the cooling chamber, and the water outlet extends from the water outlet to the compressor compartment, and the extension path is long, and is easily deformed during foaming.

Disclosure of Invention

It is an object of the present invention to overcome at least one of the disadvantages of the prior art and to provide a refrigeration and freezing apparatus having two bottom mounted evaporators and a very simple water drain structure.

A further object of the present invention is to improve the user experience by the structural layout of the fan and the two evaporators.

A further object of the invention is to avoid that the fan influences the flow of the condensation.

In order to achieve the above object, the present invention provides a refrigerating and freezing apparatus comprising:

the refrigerator comprises a box body, a door body and a door body, wherein at least one storage chamber and a cooling chamber positioned below the at least one storage chamber are defined in the box body; and

two evaporators arranged in the cooling chamber side by side and at intervals in a transverse direction of the case, each of the evaporators being configured to cool an air flow passing therethrough; wherein

The bottom wall of the cooling chamber is arranged to extend obliquely downwards from two sides to the middle in the transverse direction of the box body and extend obliquely downwards from front to back in the depth direction of the box body; the middle part of the rear side of the cooling chamber is provided with a water outlet, the water outlet is connected with a water drain pipe, and the water drain pipe extends to the outside of the cooling chamber so as to discharge condensed water generated by the two evaporators through the water outlet and the water drain pipe.

Optionally, the drain pipe extends obliquely downward from front to rear in the depth direction of the tank body.

Optionally, a compressor bin is limited at the bottom of the rear side of the box body, an evaporation pan is arranged in the compressor bin, and the drain pipe extends to the evaporation pan so as to guide condensed water generated in the cooling chamber to the evaporation pan.

Optionally, the refrigeration and freezing apparatus further comprises:

the fan is arranged between the two evaporators and is configured to controllably drive airflow to circularly flow between the cooling chamber and at least one storage chamber; and is

At least the rear part of the fan is arranged at a distance from the bottom wall of the cooling chamber to form a gap for allowing the condensed water to flow through.

Optionally, the fan includes the spiral case and sets up in impeller in the spiral case, the inlet scoop has been seted up to the bottom of spiral case, the inlet scoop with the interval sets up between the diapire in the cooling chamber to allow two the air current of evaporimeter of flowing through the inlet scoop with the clearance between the diapire gets into the inlet scoop.

Optionally, the bottom of the volute is higher than the bottom wall of the cooling chamber at any position, and the volute is supported above the bottom wall of the cooling chamber by a support column at the bottom of the front side of the volute.

Optionally, the fan includes a volute and an impeller disposed in the volute, an air suction opening is disposed at the top of the volute, and the air suction opening and the top wall in the cooling chamber are spaced apart from each other to allow air flowing through the two evaporators to enter the air suction opening through a gap between the air suction opening and the top wall.

Optionally, the bottom of the rear side of the volute is higher than the bottom wall of the rear side of the cooling chamber, and the bottom of the front side of the volute abuts against the bottom wall of the front side of the cooling chamber.

Optionally, each of the evaporators is placed horizontally or obliquely in the cooling chamber; and/or

The fan is horizontally arranged in the cooling chamber, and an impeller of the fan rotates around a rotating shaft which extends vertically.

Optionally, each evaporator comprises a heat exchange tube for circulating a refrigerant and a plurality of heat exchange fins penetrating through the heat exchange tube, the plurality of heat exchange fins are arranged at intervals along the depth direction of the box body, and each heat exchange fin extends along the transverse direction of the box body; and is provided with

The evaporator has a foremost heat exchange fin at a foremost side in a depth direction of the box body and a rearmost heat exchange fin at a rearmost side in the depth direction of the box body; the fan comprises a volute and an impeller arranged in the volute, an air suction opening is formed in the top or the bottom of the volute, and the air suction opening is located between the foremost heat exchange fin and the rearmost heat exchange fin in the depth direction of the box body.

The refrigerating and freezing device is provided with a cooling chamber positioned below at least one storage compartment, namely the cooling chamber is positioned below the whole storage area, and two evaporators are arranged in the cooling chamber and are arranged side by side and at intervals along the transverse direction. And, the bottom wall of the cooling chamber extends obliquely downward from both sides to the middle in the lateral direction and obliquely downward from the front to the rear in the depth direction, whereby the lowest point can be formed in the lateral middle of the rearmost end of the cooling chamber. The middle part of the rear side of the cooling chamber is provided with a water outlet, namely the water outlet is positioned at the lowest point of the cooling chamber. Condensed water generated by the two evaporators falls on the bottom wall of the cooling chamber and flows to the middle rear part of the cooling chamber, finally is collected at the drain outlet at the lowest point, and is discharged through the drain pipe connected with the drain outlet. Because two evaporators share one water outlet, the number of water outlet pipes is reduced, and the structure is simpler. Since the drain port is located at the rearmost end of the cooling chamber, the extension path of the drain pipe is shortened, and the structural stability thereof is improved.

Further, cold-stored refrigerating plant is still including setting up the fan between two evaporimeters, and according to this structural configuration mode, the fan can not occupy the rear portion space of cooling chamber, and the rear portion that cooling chamber and the wind channel apron that borders on between the storing room of cooling chamber top need not set up great inclination because of dodging the inlet scoop of fan from this for this storing space's bottom is more level and more smooth, has avoided indoor formation special-shaped space between this storing, has improved user's use and has experienced.

Further, the rear part of the fan or the whole fan is arranged at a distance from the bottom wall of the cooling chamber, and a gap allowing the condensed water to flow through is formed below the fan. Therefore, the condensate water can not contact the fan to cause potential safety hazard to the fan, and the fan can not generate any resistance effect on the condensate water flowing along the bottom wall of the cooling chamber, so that the influence on the flow of the condensate water is avoided.

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 invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers 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 schematic structural view of a refrigeration freezer according to one embodiment of the invention;

figures 2 and 3 are schematic cross-sectional views, taken along different cross-sectional planes, of a refrigerated refrigeration unit according to one embodiment of the invention;

fig. 4 is an enlarged view of a portion of the refrigerating and freezing apparatus shown in fig. 3;

fig. 5 is a schematic cross-sectional view of a refrigeration freezer according to another embodiment of the invention;

fig. 6 is a schematic block diagram of a refrigeration freezer according to one embodiment of the present invention with the duct cover removed.

Detailed Description

Fig. 1 is a schematic configuration view of a refrigerating and freezing apparatus according to an embodiment of the present invention, and fig. 2 and 3 are schematic sectional views of the refrigerating and freezing apparatus according to an embodiment of the present invention, taken along different sectional planes, respectively. Referring to fig. 1 to 3, the refrigerating and freezing device 1 of the present invention includes a box body 10, and at least one storage compartment 11 and a cooling chamber 12 located below the at least one storage compartment 11 are defined in the box body 10. That is, the cooling chamber 12 is located at the lowermost portion of the casing 10 below the entire storage area.

In particular, the refrigerating and freezing device 1 further comprises two evaporators 20, the two evaporators 20 being disposed in the cooling chamber 12 side by side and spaced apart in a transverse direction of the box 10, each of the evaporators 20 being configured to cool an air flow passing therethrough to generate a cooled air flow. It is understood that the two evaporators 20 may be two evaporation sections of a single heat exchange device, which are distributed on two lateral sides in the cooling chamber 12; the two evaporators 20 may be two complete heat exchangers independent of each other, and in this case, the two evaporators 20 may be connected in series in the refrigerant flow path or may be connected in parallel in the refrigerant flow path. The two evaporators 20 are of comparable size.

Fig. 4 is an enlarged view of a part of the refrigerating and freezing apparatus shown in fig. 3. Further, the bottom wall 121 of the cooling chamber 12 is provided to extend obliquely downward in the lateral direction of the case 10 from both sides toward the middle and obliquely downward in the depth direction of the case 10 from the front to the rear, whereby the lowest point can be formed at the lateral middle of the rearmost end of the cooling chamber 12. A water outlet 122 is opened at the middle of the rear side of the cooling chamber 12, a water drain pipe 123 is connected to the water outlet 122, and the water drain pipe 123 extends to the outside of the cooling chamber 12 to drain the condensed water generated by the two evaporators 20 through the water outlet 122 and the water drain pipe 123. Since the drain port 122 is located at the rear middle portion of the cooling compartment 12, the drain port 122 is located at the lowest point of the cooling compartment 12. The condensed water generated by the two evaporators 20 falls on the bottom wall 121 of the cooling chamber 12, flows toward the middle rear of the cooling chamber 12, finally collects in the drain port 122 at the lowest point, and is discharged through the drain pipe 123 connected to the drain port 122. Since the two evaporators 20 share the water discharge port 122, the number of the water discharge ports and the number of the water discharge pipes 123 are reduced, and the structure is simple. The drain port 122 is located at the rearmost end of the cooling chamber 12, and the extension path of the drain pipe 123 is shortened, thereby improving the structural stability.

In some embodiments, the drain pipe 123 extends obliquely downward from front to rear in the depth direction of the cabinet 10, so as to guide the condensed water in the cooling compartment 12 to the outside of the cooling compartment 12 as soon as possible, and avoid the condensed water from being retained in the drain pipe 123 and even flowing back into the cooling compartment 12.

Further, the bottom wall 121 of the cooling chamber 12 is inclined to such an extent that the condensed water can naturally flow into the drain port 122. The inclination angles of the bottom wall 121 at different positions may be different, and the inclination angles of the bottom wall 121 at different positions may be substantially the same. Preferably, the inclination angle of the bottom wall 121 at any position is greater than or equal to 5 ° to ensure that the condensed water is efficiently collected to the drain opening 122. Accordingly, the drain pipe 123 is inclined at an angle corresponding to the inclination of the gas-adjoining cooling chamber bottom wall 121, and is also preferably inclined at an angle of 5 ° or more, to ensure effective drainage of the condensed water.

In some embodiments, the bottom of the rear side of the box 10 defines a compressor compartment 19, an evaporation pan 40 is disposed in the compressor compartment 19, and a drain pipe 123 extends to the evaporation pan 40 to guide the condensed water generated in the cooling chamber 12 to the evaporation pan 40. Specifically, a compressor and a condenser are also disposed in the compressor compartment 19, and the evaporating dish 40 may be disposed adjacent to the compressor and/or the condenser to evaporate the condensed water collected in the evaporating dish 40 by using heat of the compressor and/or the condenser.

Further, the evaporating dish 40 can be arranged in the middle of the compressor chamber 19 in the transverse direction of the box body so as to be adapted to the position of the drain pipe 123, so that the evaporating dish 40 does not need to have a larger size in the transverse direction, the occupied space is reduced, devices such as a compressor, a condenser and the like can be reasonably arranged in the compressor chamber 19, and the structure is more compact.

In some embodiments, the refrigerator-freezer 1 further comprises a fan 30, the fan 30 being disposed between the two evaporators 20 and configured to controllably drive an airflow to circulate between the cooling compartment 12 and the at least one storage compartment 11. That is, the fan 30 can drive the airflow passing through the two evaporators 20 to flow to the storage compartment 11.

In a specific embodiment, the number of the storage compartments 11 may be one, the storage compartment 11 is adjacent to the upper side of the cooling compartment 12, two evaporators 20 arranged in the cooling compartment 12 are used for providing cooling energy to the storage compartment 11, and the fan 30 can promote the airflow to circulate between the storage compartment 11 and the cooling compartment 12. Specifically, the storage compartment 11 may be a refrigerating compartment, a freezing compartment, or a temperature-changing compartment.

In another embodiment, the number of storage compartments 11 may be two or more. If the overall volume of the refrigerating and freezing device 1 is not large, the plurality of storage compartments 11 may each be provided with cooling capacity by two evaporators 20 arranged in the cooling compartment 12, and at this time, the fan 30 can promote the air flow to circulate between the plurality of storage compartments 11 and the cooling compartment 12. When the entire volume of the refrigerating and freezing apparatus 1 is large and the required cooling capacity is large, only the storage compartment 11 adjacent to the upper side of the cooling chamber 12 is cooled by the two evaporators 20 provided in the cooling chamber 11, and the other storage compartments 11 are cooled by the evaporators provided at other positions. At this time, the fan 30 drives only the air flow to circulate between the cooling chamber 11 and the storage compartment 11 adjacent above the cooling chamber 12. In particular, the storage compartment 11 adjacent to the cooling compartment 12 may be a freezing compartment, and the other storage compartments may include a refrigerating compartment and/or a temperature-changing compartment.

According to the invention, one evaporator with a larger volume in the existing cooling chamber is replaced by two evaporators with a relatively smaller volume, on the premise of ensuring that the whole refrigerating capacity is not reduced, a middle space is formed between the two evaporators 20, the fan 30 is placed by utilizing the middle space, and the fan 30 is prevented from occupying the rear space of the cooling chamber 12, so that the rear part of the air duct cover plate 14 between the cooling chamber 12 and the storage chamber 11 adjacent to the upper part of the cooling chamber 12 does not need to be provided with a larger inclination angle due to avoiding an air suction opening of the fan 30, the bottom of the storage chamber 11 adjacent to the upper part of the cooling chamber 12 is smoother, and the influence of a special-shaped space formed in the storage chamber 11 on the use experience of a user is avoided. When the drawer 13 is arranged in the storage compartment 11, the rear part of the drawer 13 is relatively flat, the storage space is larger, and the sensory experience of a user is not influenced.

Because the bottom wall of the rear part of the cooling chamber 12 is lower, the bottom wall of the middle part of the rear side of the cooling chamber 12 is the lowest, and the fan 30 is positioned between the two evaporators 20, in order to avoid the fan 30 blocking the flow of the condensed water and avoiding the influence of the condensed water on the fan 30, in some embodiments, at least the rear part of the fan 30 is arranged at an interval with the bottom wall of the cooling chamber 12 to form a gap allowing the condensed water to flow, so that the rear part of the fan 30 is prevented from being contacted during the flow of the condensed water. The bottom wall of the front part of the cooling chamber 12 is relatively high, and the condensed water generated by the two evaporators 20 does not flow to the middle part of the front side of the cooling chamber 12 in the transverse direction, so that the front part of the fan 30 can directly contact the bottom wall of the cooling chamber 12, and the possibility of mutual influence between the condensed water and the fan 30 is very small.

In some embodiments, the blower 30 includes a volute 31 and an impeller 32 disposed in the volute 31, a suction opening 311 is opened at a bottom of the volute 31, and the suction opening 311 is spaced from the bottom wall 121 in the cooling chamber 12 to allow air flowing through the two evaporators 20 to enter the suction opening 311 through a gap between the suction opening 311 and the bottom wall 121. That is, the air flow flowing space is formed between the air suction opening 311 and the bottom wall 121 in the cooling chamber 12, ensuring that the fan 30 can smoothly suck air. The suction opening 311 opened at the bottom of the fan 30 is located between the two evaporators 20 and is opened downward, and the path between the suction opening 311 and the two evaporators 20 is substantially the same, so that the air flow from the two evaporators 20 can be uniformly received, thereby promoting the air flow to uniformly flow through the two evaporators 20. More importantly, the fan 30 can also produce a small amount of condensed water in the operation process, the suction opening 311 is arranged at the bottom of the volute 31, so that the condensed water generated by the fan 30 can directly drop on the bottom wall 121 of the cooling chamber 12 through the suction opening 311, and is discharged in time through the water discharge opening 122, the condensed water cannot be accumulated in the fan 30, and the possibility of frosting of the fan 30 is reduced to a great extent.

Further, the bottom of the volute 31 is higher than the bottom wall 121 at any position of the cooling chamber 12, that is, the whole fan 30 is located at the upper portion in the cooling chamber 12, and the volute 31 is not in contact with the bottom wall 121 of the cooling chamber 12. On one hand, the height of the air suction opening 311 can be raised, so that a sufficiently large space is formed between the air suction opening and the bottom wall 121 of the cooling chamber 12 for the air flow to flow, and the smoothness of the air flow is further improved; on the other hand, the potential safety hazard of the fan 30 or abnormal frosting of the fan 30 caused by the fact that the condensed water contacts the fan 30 can be fundamentally avoided.

Specifically, the volute 31 is supported above the bottom wall 121 of the cooling chamber 12 by a support structure 124 at the bottom of its front side. The support structure 124 may extend vertically upward perpendicular to the bottom wall 121 of the cooling chamber 12.

Fig. 5 is a schematic cross-sectional view of a refrigerated freezer according to another embodiment of the invention. In other embodiments, referring to fig. 5, an air suction opening 311 may also be formed at the top of the volute 31, and the air suction opening 311 is spaced from the top wall of the cooling chamber 12 to allow the air flowing through the two evaporators 20 to enter the air suction opening 311 through the gap between the air suction opening 311 and the top wall of the cooling chamber. That is, the air flow flowing space is formed between the air suction opening 311 and the top wall of the cooling chamber 12, ensuring smooth air suction by the fan 30. The suction opening 311 opened at the top of the fan 30 is located between the two evaporators 20 and is opened downward, and the path between the suction opening 311 and the two evaporators 20 is substantially the same, so that the air flow from the two evaporators 20 can be uniformly received, thereby promoting the air flow to uniformly flow through the two evaporators 20.

Further, the bottom of the rear side of the volute casing 31 is higher than the bottom wall of the rear side of the cooling chamber 12, and the bottom of the front side of the volute casing 31 abuts against the bottom wall of the front side of the cooling chamber 12. That is, only the rear side of the volute 31 is higher than the bottom wall 121 of the cooling chamber 12, and the bottom of the front side of the volute 31 can directly rest on the bottom wall 121 of the front side of the cooling chamber 12, so that the installation and support stability of the fan 30 is improved. Since the bottom wall 121 of the cooling chamber 12 is inclined downward from front to back, the bottom wall of the front part of the cooling chamber 12 is located relatively high, and the condensed water generated by the two evaporators 20 does not flow to the middle part of the front side of the cooling chamber 12 in the lateral direction, so that even if the front part of the fan 30 directly contacts the bottom wall of the cooling chamber 12, the condensed water and the fan 30 do not affect each other. At this time, when the fan 30 is horizontally disposed, a gap sufficient to allow the condensed water to flow through is formed between the rear bottom of the scroll casing 31 and the rear bottom wall of the cooling chamber 12. Moreover, since the air suction opening 311 is formed at the top of the volute casing 31, and an air flow flowing space must be formed between the air suction opening 311 and the top wall of the cooling chamber 12, the front bottom of the volute casing 31 directly abuts against the front bottom wall of the cooling chamber 12, so that the position of the fan 30 can be reduced as much as possible on the premise that the condensed water and the fan 30 are not affected by each other, a sufficiently large air flow flowing space is formed between the air suction opening 311 and the top wall of the cooling chamber 12, and the air flow can flow more smoothly.

Fig. 6 is a schematic block diagram of a refrigeration freezer according to one embodiment of the present invention with the duct cover removed. In some embodiments, each of the evaporators 20 includes a heat exchange tube 21 for circulating a refrigerant therethrough and a plurality of heat exchange fins 22 provided across the heat exchange tube 21. The plurality of heat exchange fins 22 are arranged at intervals along the depth direction of the tank 10, and each heat exchange fin 22 extends in the transverse direction of the tank 10. Therefore, the gaps between two adjacent heat exchange fins 22 extend along the transverse direction, so that the return air flow flows to the fan 30 along the gaps between the heat exchange fins 22, the flow resistance of the air flow is reduced, and the heat exchange effect between the air flow and the heat exchange fins 22 is improved.

Further, the evaporator 20 has a frontmost heat exchange fin at the frontmost side in the depth direction of the tank 10 and a rearmost heat exchange fin at the rearmost side in the depth direction of the tank 10. The fan 30 includes a volute 31 and an impeller 32 disposed in the volute 31, an air suction opening 311 is disposed at the top or bottom of the volute 31, and the air suction opening 311 is located between the foremost heat exchange fin and the rearmost heat exchange fin in the depth direction of the box 10. Therefore, negative pressure generated when the fan 30 operates can act on the front areas and the rear areas of the two evaporators 20 relatively uniformly, so that return air flows through the heat exchange fins at the front parts of the two evaporators and the heat exchange fins at the rear parts of the two evaporators uniformly, and the uniformity of return air heat exchange is improved.

Preferably, the air suction opening 311 is located in the middle of the evaporator 20 in the depth direction of the box 10, so that the return air flows more uniformly through the heat exchange fins at the front parts of the two evaporators and the heat exchange fins at the rear parts of the two evaporators, and the heat exchange effect between the return air and the evaporator 20 is optimal.

In some embodiments, each evaporator 20 is horizontally disposed in the cooling chamber 12, so that the air duct cover 14 between the cooling chamber 12 and the storage compartment 11 adjacent to the cooling chamber 12 is in a horizontal state, thereby enlarging the storage space of the storage compartment 11 as much as possible and improving the visual aesthetic effect.

In some embodiments, the central space formed between the two evaporators 20 is sufficient to accommodate the fan 30, and therefore, the fan 30 may be disposed horizontally in the cooling compartment 12, with the impeller of the fan 30 rotating about a vertically extending axis of rotation, facilitating the support and fixation of the fan 30.

In other embodiments, each evaporator 20 is disposed in the cooling chamber 12 in an inclined state with a predetermined angle with the horizontal plane, the angle of the predetermined angle is small, and the evaporator 20 is slightly inclined, which neither greatly increases the height of the cooling chamber 12, nor facilitates the flow of the condensed water on the evaporator 20.

In some embodiments, the cooling compartment 12 and the storage compartment 11 adjacent to and above the cooling compartment 12 are separated by a duct cover 14 extending in the transverse direction of the cabinet 10, and the top of the duct cover 14 is opened with a return air inlet 141 vertically penetrating the duct cover 14 to communicate the storage compartment 11 and the cooling compartment 12, so as to allow the return air in the storage compartment 11 to flow to the two evaporators 20 through the return air inlet 141. That is, the return air opening 141 is oriented upward, not frontward. Since the storage compartment 11 is located above the cooling compartment 12, the return air in the storage compartment 11 can directly flow to the cooling compartment 12 through the return air inlet 141 which is open upward, and even if the door body corresponding to the storage compartment 11 is opened, the hot and humid air in the environment can enter the return air inlet 141 a little because the path is far away from the return air inlet 141 or the direction needs to be changed, thereby effectively avoiding abnormal frosting in the cooling compartment 12 through very simple structural changes.

In some embodiments, the number of the return air inlets 141 is two, and the two return air inlets 141 are respectively located at two lateral edges of the duct cover 14 to allow the return air of the storage compartment 11 to flow to the two evaporators 20 through the two return air inlets 141, respectively. This application is located the structure basis between two evaporimeters 20 at fan 30, and further sets the quantity of return air inlet 141 to two, and two return air inlets 141 are located two horizontal edge portions of wind channel apron 14 respectively to return air is carried out to two evaporimeters 20 respectively, has made the return air in the storing room 11 evenly to flow to two evaporimeters 20, has improved the refrigeration efficiency of two evaporimeters 20's heat exchange efficiency and storing room 11. And intersect and set up the return air inlet in the front side of cooling chamber 12, this application open-ended return air inlet can make the return air current more directly flow to cooling chamber 12, avoids the air current to have the influence air current velocity of flow through supplementary wind channel.

In some embodiments, the projection of each air return opening 141 in the horizontal plane is located laterally outside the projection of its adjacent evaporator 20 in the horizontal plane. Thus, the return air flowing into the cooling compartment 12 through each of the return air inlets 141 passes through the entire evaporator 20 and flows from one lateral side of the corresponding evaporator 20 to the other lateral side of the corresponding evaporator 20, and the contact area and the contact time between the return air flowing in through any position of the return air inlet 141 and the evaporator 20 are substantially the same, so that the heat exchange effect between the return air and the evaporator 20 is very uniform.

Specifically, each of the air return ports 141 is a strip-shaped air port region extending in the depth direction of the case 10.

In some embodiments, the cabinet 10 further defines an air supply duct 18, and an air outlet of the fan 30 is connected to the air supply duct 18 to deliver a cooling air flow to the storage compartment 11 through the air supply duct 18. Specifically, the air supply duct 18 may be located at a rear portion of the cabinet, so as to uniformly supply air to the storage compartment 11.

It will be understood by those skilled in the art that the refrigerated and frozen device 1 of the present invention includes but is not limited to a refrigerator, but may also include a freezer, a refrigerator, a freezer, and other devices having a function similar to that of refrigerating or freezing storage.

It should also be understood by those skilled in the art that the terms "upper", "lower", "front", "back", "top", "bottom", and the like used in the embodiments of the present invention are used with reference to the actual usage of the refrigeration and freezing apparatus 1, and these terms are only used for convenience of describing and understanding the technical solution of the present invention, and do not indicate or imply that the apparatus referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

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

Claims (10)

1. A refrigeration freezer apparatus, comprising:

the refrigerator comprises a box body, a door body and a door body, wherein at least one storage chamber and a cooling chamber positioned below the at least one storage chamber are defined in the box body; and

two evaporators arranged in the cooling chamber side by side and at intervals in a transverse direction of the case, each of the evaporators being configured to cool an air flow passing therethrough; wherein

The bottom wall of the cooling chamber is arranged to extend obliquely downwards from two sides to the middle in the transverse direction of the box body and extend obliquely downwards from front to back in the depth direction of the box body; the middle part of the rear side of the cooling chamber is provided with a water outlet, the water outlet is connected with a water drain pipe, and the water drain pipe extends to the outside of the cooling chamber so as to drain condensed water generated by the two evaporators through the water outlet and the water drain pipe.

2. A refrigerator-freezer according to claim 1,

the drain pipe extends obliquely downwards from front to back in the depth direction of the box body.

3. A refrigerator-freezer according to claim 1,

the compressor bin is limited to the rear side bottom of box, be equipped with the evaporating dish in the compressor bin, the drain pipe extends to the evaporating dish to with the comdenstion water conservancy diversion that produces in the cooling chamber extremely the evaporating dish.

4. A refrigerator-freezer as claimed in claim 1, further comprising:

the fan is arranged between the two evaporators and is configured to controllably drive airflow to circularly flow between the cooling chamber and at least one storage chamber; and is

At least the rear part of the fan is arranged at a distance from the bottom wall of the cooling chamber to form a gap for allowing the condensed water to flow through.

5. A refrigerator-freezer according to claim 4,

the fan includes the spiral case and sets up in impeller in the spiral case, the inlet scoop has been seted up to the bottom of spiral case, the inlet scoop with the interval sets up between the diapire in the cooling chamber to allow two to flow through the air current of evaporimeter warp the inlet scoop with clearance between the diapire gets into the inlet scoop.

6. A refrigerator-freezer according to claim 5,

the bottom of the volute is higher than the bottom wall of the cooling chamber at any position, and the volute is supported above the bottom wall of the cooling chamber through a support column at the bottom of the front side of the volute.

7. A refrigerator-freezer according to claim 4,

the fan comprises a volute and an impeller arranged in the volute, an air suction opening is formed in the top of the volute, and the air suction opening and the top wall in the cooling chamber are arranged at intervals to allow air flow flowing through the two evaporators to enter the air suction opening through a gap between the air suction opening and the top wall.

8. A refrigerator-freezer according to claim 7,

the bottom of the rear side of the volute is higher than the bottom wall of the rear side of the cooling chamber, and the bottom of the front side of the volute abuts against the bottom wall of the front side of the cooling chamber.

9. A refrigerator-freezer according to claim 4,

each of the evaporators is placed in the cooling chamber horizontally or obliquely; and/or

The fan is horizontally arranged in the cooling chamber, and an impeller of the fan rotates around a rotating shaft which vertically extends.

10. A refrigerator-freezer according to claim 4,

each evaporator comprises a heat exchange tube for circulating a refrigerant and a plurality of heat exchange fins arranged on the heat exchange tube in a penetrating mode, the heat exchange fins are arranged at intervals along the depth direction of the box body, and each heat exchange fin extends along the transverse direction of the box body; and is

The evaporator has a foremost heat exchange fin at the foremost side in the depth direction of the tank body and a rearmost heat exchange fin at the rearmost side in the depth direction of the tank body; the fan includes the spiral case and sets up in impeller in the spiral case, the inlet scoop has been seted up to the top or the bottom of spiral case, the inlet scoop is in the depth direction of box be in foremost end heat transfer fin with between the rearmost end heat transfer fin.

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