CN110375477A - Cool room is located at the refrigerator of freezing compartment bottom - Google Patents

Abstract

The invention provides a refrigerating chamber located at the bottom of a freezing compartment, which comprises: a box body, the lower part of which defines a refrigerating compartment, and a refrigerating chamber is formed at the bottom of the freezing compartment; In the refrigeration room; the front baffle plate of the evaporator, which is used as the front wall of the refrigeration chamber, and is spaced apart from the front end of the evaporator; Connected and arranged on the upper cover part above the evaporator; and the freezing compartment forms a frozen storage cavity above the upper cover part, and the refrigerated air return port connecting the frozen storage cavity and the refrigeration room is opened on the inclined part. The refrigerator of the present invention optimizes the installation mode of the evaporator, improves the space utilization efficiency of the refrigerator, is convenient for users to pick and place, and ensures the smooth return air of the refrigeration chamber.

Description

Refrigerators with the refrigeration compartment at the bottom of the freezer compartment

technical field

The invention relates to the field of household electrical appliances, in particular to a refrigerator with a refrigerating chamber located at the bottom of a freezing compartment.

Background technique

Refrigerator is one of indispensable household appliances in people's daily life.

Existing refrigerators are generally provided with multiple storage compartments, which can be configured as refrigerated compartments, variable temperature compartments, fresh-keeping compartments, and freezer compartments according to different purposes. These compartments are generally arranged from top to bottom. In order to save space, the freezer at the bottom is close to the ground, which makes it very inconvenient for users to use the freezer, and often needs to squat down to operate, which affects the user's experience.

In addition, when the freezer is a drawer-type compartment, since the bottom of the refrigerator is often provided with a press compartment, the press compartment needs to occupy a part of the drawer space, so that the drawer needs to be constructed in a special shape, resulting in the space at the bottom of the refrigerator cannot be fully utilized. Moreover, the drawer at the bottom of the refrigerator also needs to be set very deep, and the stored items need to be stacked during use, and the user needs to spend too much time searching for the items when picking them up, which brings inconvenience to use.

Contents of the invention

An object of the present invention is to provide a method for increasing the height of the storage space at the bottom of the refrigerator from the ground to improve user experience.

A further object of the present invention is to improve the utilization efficiency of the storage space of the refrigerator.

Another further object of the present invention is to prevent the return air passage of the refrigerating chamber from being frozen to cause return air compensation.

In particular, the present invention provides a refrigerator, which includes: a box body, the lower part of which defines a freezing compartment, and a refrigeration compartment is formed at the bottom of the freezing compartment; the evaporator, which is in the shape of a flat cuboid as a whole, is installed in the refrigeration compartment; The front baffle of the evaporator, which serves as the front wall of the refrigeration chamber, is spaced apart from the front end of the evaporator; and the evaporator cover, which includes an inclined portion extending obliquely upward from the top of the front plate of the evaporator and connected to the inclined portion and arranged The upper cover part above the evaporator; and the freezer compartment forms a freezer storage chamber above the upper cover part, and the refrigerated air return port communicating with the freezer storage chamber and the refrigerating chamber is opened on the inclined part.

Optionally, there is a gap between the upper cover and the top of the evaporator, and an air induction plate is arranged in the interval, and the air induction plate includes: a rear section, which is attached to the rear of the top of the evaporator; an inclined section, from which The front end of the rear section extends obliquely upwards; the front section extends from the front end of the inclined section parallel to the top of the evaporator, and defines an air induction channel with the top of the evaporator to form an air induction channel, so that the air from the refrigeration The refrigerated return air flow from the air return port is introduced into the front end of the evaporator and/or the front of the top of the evaporator through the air induction channel.

Optionally, the front end of the front section is tilted upwards to enlarge the opening area of the air-inducing channel.

Optionally, the above-mentioned refrigerator further includes: a filling part arranged between the air induction plate and the upper cover, so that the upper cover presses against the evaporator.

Optionally, the refrigerating air return port includes a plurality of return air grilles arranged at intervals in the longitudinal direction, and the upper edge of each return air grill is provided with a shielding plate protruding from the outer surface of the inclined part, so as to prevent foreign matter from falling into the refrigerating return air outlet from above. tuyere.

Optionally, the above-mentioned refrigerator also includes: an air supply duct, which is arranged at the rear of the freezing compartment, and has an air supply opening leading to the rear of the freezing compartment at its lower end, and uses the freezing air inlet leading to the freezing compartment to blow air into the freezing compartment. room air supply; and the evaporator fan, which is arranged at the air supply port to send the air in the refrigeration room into the air supply duct, and the evaporator fan is configured to be at a set inclination angle relative to the evaporator.

Optionally, the box body defines at least one refrigerated compartment above the refrigerated compartment, and the air supply duct extends upwards to the rear of the refrigerated compartment, and uses the refrigerated air inlet leading to the refrigerated compartment to flow to the refrigerated compartment. and the refrigerator also includes: a return air duct, which is arranged on at least one side of the box body, its upper end communicates with the refrigerated compartment, and its lower end communicates with the front of the refrigerated compartment, thereby leading the return air from the refrigerated compartment back refrigeration room.

Optionally, the opening through which the refrigeration chamber communicates with the lower end of the return air duct is arranged on the side wall of the space between the front baffle plate of the evaporator and the front end of the evaporator.

Optionally, the box body is also formed with a compressor compartment at the rear of the freezer compartment, the top wall of the compressor compartment is located below the air supply duct and lower than the top of the evaporator, and the bottom wall of the compressor compartment is lower than the refrigerating chamber The lowest point of the bottom wall; and the refrigerator also includes: a compressor, a condenser, and a cooling fan arranged horizontally and spaced inside the compressor chamber.

Optionally, the bottom wall of the refrigerating chamber has a shape that is gradually concave from all sides to the center, and has a drain hole at the lowest point; and the refrigerator also includes: an evaporating dish arranged in the compressor compartment, and a drain pipe connected to the drain hole , the drain pipe extends obliquely downward from the drain hole to the evaporating dish to drain the condensed water from the evaporator to the evaporating dish.

In order to solve the problem of inconvenient operation for users due to the low position of the refrigerator whose refrigeration chamber is located at the bottom of the freezer compartment in the present invention, the position of the evaporator in the refrigeration system is changed from the rear of the freezer compartment to the lower part of the freezer compartment. The vertical installation of the evaporator is changed to a horizontal installation, which can increase the height of the freezer drawer and facilitate user operation, and because the evaporator is no longer arranged on the back, the distance between the front and back of the refrigerator can be reduced, and the storage space of the refrigerator can be improved. usage efficiency.

Furthermore, the refrigerator of the present invention also avoids occupying the bottom storage space by adjusting the positional relationship between the refrigeration chamber and the compressor compartment, and solves the inconvenience caused by the existing bottom storage drawer having too large depth and small unfolded area.

Furthermore, the refrigerator of the present invention optimizes the air flow channel of the refrigeration chamber, and uses the air induction plate to form a return air bypass channel above the evaporator, so as to prevent the front part of the evaporator from being frozen and affecting the air flow circulation.

Furthermore, the refrigerator of the present invention has an optimized air duct and heat dissipation structure, and is especially suitable for built-in refrigerators, expanding the usage scenarios.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

FIG. 1 is a schematic diagram of a refrigerator according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of a cabinet of a refrigerator according to an embodiment of the present invention;

Fig. 3 is an exploded view of components of a box part of a refrigerator according to an embodiment of the present invention;

Fig. 4 is an exploded view of the structure of the bottom part of the refrigerator according to an embodiment of the present invention;

Fig. 5 is a front view of a cabinet of a refrigerator according to an embodiment of the present invention;

Figure 6 is a schematic cross-sectional view taken along line A-A in Figure 5; and

Fig. 7 is a schematic structural view of a press chamber in a refrigerator according to an embodiment of the present invention.

Detailed ways

This embodiment mainly provides a refrigerating chamber located at the bottom 10 of the freezing compartment. The refrigerator 10 is especially suitable as a built-in refrigerator, which further saves space and has a more unified appearance with the surrounding environment.

Fig. 1 is a schematic diagram of a refrigerator 10 according to an embodiment of the present invention, and Fig. 2 is a schematic diagram of a cabinet 100 of a refrigerator 10 according to an embodiment of the present invention (in order to illustrate the internal structure of the cabinet 100, the cabinet 100 is hidden shell), and FIG. 3 is an exploded view of parts of the cabinet 100 of the refrigerator 10 according to an embodiment of the present invention.

The refrigerator 10 of this embodiment may include: a box body 100 , a door body (not shown in the figure), a refrigeration system, and the like. The box 100 includes: a box shell, a box liner, a heat insulation layer and other accessories. The box shell is the outer structure of the refrigerator 10 and protects the entire refrigerator 10 . In order to isolate the heat conduction from the outside, there is a heat insulation layer between the box shell and the box inner liner, and the heat insulation layer can be processed by foaming process (in order not to block other parts, the heat insulation layer is not shown in the drawings. Shows).

The box body 100 defines at least one storage compartment with an open front side, usually a plurality of them, such as a refrigerated compartment 112, a freezer compartment 111, a variable temperature compartment 113, and the like. The number and functions of the specific storage compartments can be configured according to the advance requirements. As shown in FIG. The compartments 111) are only illustrative, and in this embodiment, the number, structure, and function of each storage compartment can be configured according to specific conditions.

The number of door bodies can be matched with the number of storage compartments, so that the storage compartments can be opened individually one by one. For example, a refrigerator door 142 , a freezer door 141 , and a temperature-variable door 143 may be provided for the refrigerator compartment 112 , the freezer compartment 111 , and the variable-temperature compartment 113 , respectively. In some optional embodiments, the door body may also be in the form of a side-hung door, a side-hung door, a side-sliding door, a drawing door, and the like. For example, the refrigerated compartment 112 can adopt side-by-side doors, and the temperature-changing compartment 113 and the freezer compartment 111 can adopt a drawer-type structure.

The refrigeration system may be a refrigeration cycle system composed of a compressor 200, a condenser 500, a throttling device, an evaporator 300, and the like. The evaporator 300 is configured to provide cold energy to the storage compartment, and the cold energy transfer can be realized through the air duct system, and the air circulation can be realized through the fan. Since the refrigeration system itself is well-known and easy to implement by those skilled in the art, the working principle of the refrigeration system will not be described in detail below in order not to obscure and obscure the invention points of the present application. In this embodiment, the compressor 200, the condenser 500, and the evaporator 300 may form an assembly with their respective accessories. The refrigerator 10 has an air duct system, and a fan is used to generate a circulating air flow from the compartment to the evaporator 300 to realize air cooling.

In the refrigerator 10 of this embodiment, the compartment at the bottom of the cabinet 100 is preferably configured as a freezer compartment 111 , and the bottom of the freezer compartment 111 is formed with a refrigerating chamber 151 for arranging the refrigerator evaporator 300 . The refrigerating compartment 151 is located at the bottom front area of the freezing compartment 111 to provide space for the air supply duct 410 and the evaporator fan 220 at the rear thereof.

Since the evaporator 300 will vibrate due to temperature changes during normal operation, in the existing refrigerator, since the evaporator 300 is located at the rear of the refrigerator and is blocked by the heat insulation layer, the noise generated by the vibration will be greatly reduced. However, in the refrigerator 10 of this embodiment, the evaporator 300 is arranged at the front part of the bottom of the refrigerator 10. If it is fixed with the inner liner of the box, noise will appear when the evaporator 300 vibrates, thereby affecting the normal use of the user. In the refrigerator 10 of the example, the fixed structure of the evaporator 300 is improved to reduce the influence of noise.

Fig. 4 is an exploded view of the structure of the bottom part of the refrigerator 10 according to an embodiment of the present invention, and Fig. 6 is a schematic cross-sectional view taken along the section line A-A in Fig. 5, which only shows the cooling at the bottom of the refrigerator 10 The cross-sectional structure of the chamber 151.

The evaporator 300 is in the shape of a flat cuboid as a whole, wherein the length direction of the evaporator 300 is the horizontal direction of the refrigerator 10, the width direction of the evaporator 300 is the front and rear depth direction of the refrigerator 10, and the thickness of the evaporator 300 is the vertical direction of the refrigerator 10. . The thickness of the evaporator 300 is smaller than the length and width of the evaporator 300 . The evaporator 300 is installed in the cooling chamber 151 . The fins of the evaporator 300 are arranged parallel to the front and back direction of the refrigerator 10 , so that the airflow can flow along the direction of the fins and fully perform heat exchange.

The front of the refrigeration compartment 151 has an evaporator front baffle 212 . The evaporator front baffle 212 is used as the front wall of the refrigeration chamber 151, and is spaced from the front end of the evaporator 300. The return airflow of the compartment 112, the variable temperature compartment 113, and the freezing compartment 111 is discharged into. For example, the return air duct 420 can guide the return air from the refrigerated compartment 112 back to the partition area.

The humidity of the return air increases, so the area where the front end of the evaporator 300 is in contact with the return air is prone to frosting, which may lead to poor return air. road channel.

The upper part of the evaporator 300 also has an evaporator cover 210 , and the evaporator cover 210 serves as the top wall of the refrigeration compartment 151 , thereby separating the storage area of the freezer compartment 111 from the refrigeration compartment 151 . The evaporator cover 210 includes an inclined portion 214 extending obliquely upward from the top of the evaporator front baffle 212 and an upper cover portion 215 connected to the inclined baffle and arranged above the evaporator 300; A refrigerated storage chamber is formed above 215 , and a refrigerated air return port 217 communicating with the refrigerated storage chamber and the refrigerating chamber 151 is opened on the inclined portion 214 . The airflow entering from the refrigerated air return port 217 can enter the space between the front baffle plate 212 of the evaporator and the front end of the evaporator 300, enter from the front of the evaporator 300, or enter the heat exchange area of the evaporator 300 from the upper part of the evaporator 300 , avoiding the increase of return wind resistance due to frost, avoiding frequent defrosting, and improving heat exchange efficiency.

The freezing air return port 217 includes a plurality of return air grilles arranged at intervals in the longitudinal direction, and the upper edge of each return air grill is provided with a baffle plate 218 protruding from the outer surface of the inclined part 214 (similar to the structure of the convex eaves), so as to avoid Foreign matter falls into the freezing return air outlet 217 from above.

There is a gap between the upper cover portion 215 and the top of the evaporator 300, and an air induction plate 232 is arranged in the interval. The rear portion of the air induction plate 232 is attached to the rear portion of the top of the evaporator 300, and the front portion is raised upwards to meet the evaporator. The front portion between the evaporators defines an air induction channel, so that the refrigerated return air flow from the refrigerated air return port 217 is introduced into the front end of the evaporator 300 through the air induction channel.

There is a space between the upper cover part 215 of the evaporator cover 210 and the top of the evaporator 300, and the air-inducing plate 232 is arranged in the space, and the air-introducing plate 232 includes: a rear area attached to the rear of the top of the evaporator 300 section, an inclined section extending obliquely upward from the front end of the rear section, and a front section extending parallel to the top of the evaporator 300 from the front end of the inclined section, the front section and the top of the evaporator 300 define a lead The air channel forms an air induction channel, so that the refrigerated return air flow from the refrigerated air return port 217 is introduced into the front end of the evaporator 300 and/or the front of the top of the evaporator 300 through the air induction channel. The front end of the front section is tilted upwards to enlarge the opening area of the air-inducing channel.

A filling portion 231 is arranged between the air-introducing plate 232 and the upper cover portion 215 , so that the upper cover portion 215 presses against the evaporator 300 . The air-inducing plate 232 is preferably made of aluminum plate and other materials with good thermal conductivity and certain structural strength. Utilizing the windward channel formed by the air-introducing plate 232, when the front of the evaporator 300 is frosted and cannot enter the air due to the abnormal operation of the evaporator 300 or the high-temperature and high-humidity environment, the return air can enter the air from the top air-introducing air channel to ensure that the evaporator 300 for normal cooling. The filling part 231 can cooperate with the air induction plate 232 to form an air induction channel, and can support the evaporator cover 210, so that the fixing of the evaporator 300 is more reliable.

In the refrigerator 10 of this embodiment, the position of the evaporator 300 in the refrigeration system is changed from the rear of the compartment to the bottom of the freezing compartment 111, and the traditional vertical installation of the evaporator 300 is changed to a horizontal placement, thereby improving The height of the storage compartment is convenient for users to operate. And since the evaporator 300 is no longer arranged on the back, the distance in the front and rear directions of the refrigerator 10 can be reduced, and the utilization efficiency of the storage space of the refrigerator 10 can be improved. In addition, the refrigerator 10 of this embodiment can also arrange the compressor 200 and the condenser 500 behind the evaporator 300, so that the freezer compartment 111 is flat, and the space utilization rate of the storage space of the refrigerator 10 is improved.

The air supply duct 410 of the refrigerator 10 of this embodiment can be arranged at the rear of the freezing compartment 111, and its lower end has an air supply opening leading to the rear of the refrigeration compartment 151, and utilizes the freezing air inlet 411 leading to the freezing compartment 111 Air is supplied to the freezer compartment 111 . The evaporator fan 220 (that is, the cooling fan) is arranged at the air outlet of the air supply duct 410 to send the air in the refrigeration chamber 151 into the air supply duct 410, and the evaporator fan 220 is configured to be opposite to the evaporator. 300 is at a set inclination angle, which saves space on the one hand, and facilitates sending cold air into the air supply duct 410 on the other hand.

The air supply duct 410 further extends upwards to the rear of the refrigerated compartment 112, and utilizes the refrigerated air inlet 412 leading to the refrigerated compartment 112 to supply air to the refrigerated compartment 112; The air duct 410 can also supply wind to the variable temperature compartment 113 through the variable temperature air inlet 413 leading to the variable temperature compartment 113 . The refrigerating airflow is distributed by the air supply duct 410 so that each storage compartment can reach its respective set temperature.

The return air duct 420 of the refrigerator 10 of this embodiment can be arranged on at least one side of the box body, and its upper end communicates with the refrigerated compartment 112, and its lower end communicates with the front part of the refrigerated compartment 151, so as to guide the return air of the refrigerated compartment Back to the refrigeration room 151. For example, return air ducts 420 may be respectively arranged on both sides of the cabinet to return air through the two sides. The return air duct 420 may communicate with both sides of the gap between the front baffle 212 of the evaporator and the front end of the evaporator 300 , so that the refrigerated return air can enter from the front of the evaporator 300 .

A drain slope and a heating wire are provided at the connection between the return air duct 420 and the refrigeration chamber 151 . The drainage slope and the heating wire work together to prevent condensation and frost at the connected part, and prevent frost from blocking the return air duct 420 .

Fig. 7 is a schematic structural view of the compressor compartment 122 in the refrigerator 10 according to an embodiment of the present invention. The cabinet 100 also forms a press compartment 122 behind the freezer compartment 111, and the top wall of the press compartment 122 is located in the air supply duct. 410 and lower than the top of the evaporator 300, the bottom wall of the compressor chamber 122 is lower than the lowest point of the bottom wall of the refrigeration chamber 151; The compressor 200 , the condenser 500 and the cooling fan 600 inside the compressor compartment 122 .

The part of the bottom wall of the freezing compartment 111 at the rear of the refrigerating chamber 151 may extend upwards obliquely to reserve a space for the compressor compartment 122 . The height of the evaporator can be set such that the distance from the top surface of the evaporator 300 to the ground where the refrigerator 10 is located is 250 mm to 310 mm. The height from the ground of the freezing compartment 111 at the bottom of the refrigerator 10 can meet the convenience for the user to pick and place items.

The bottom wall of the refrigerating chamber 151 is in a shape that is gradually concave around the center, and has a drainage hole 225 at the lowest point; and the refrigerator 10 can also be provided with an evaporating dish 700 in the compressor compartment 122, and the evaporating dish 700 can be adjacent to the condenser. 500 settings. The drain pipe 227 can connect the drain hole 225 to the evaporating dish 700 . For example, the drain pipe 227 can extend obliquely downward from the drain hole 225 to the evaporating dish 700 to drain the condensed water of the evaporator 300 to the evaporating dish 700 .

The inclination angle of the above-mentioned bottom wall needs to satisfy that the condensation can flow into the drainage hole 225 naturally. Alternatively, the bottom wall can also be in the shape of an inverted quadrangular pyramid, and the included angles between the four slopes and the horizontal plane are all greater than or equal to 5°, so as to ensure that the condensed water collects automatically. The drain pipe 227 is placed obliquely, and the end of the drain pipe 227 connected to the drain hole 225 is higher than the end leading to the evaporating dish 700 . The inclined angle of the drain pipe 227 is matched with the inclined angle of the bottom of the refrigeration chamber 151 , so that the condensed water generated by the evaporator 300 is automatically discharged. The water in the evaporating dish 700 is evaporated by using the heat of the condenser 500 .

The refrigerator 10 of this embodiment can be a built-in refrigerator. In order to ensure the overall aesthetics, the reserved distance between the built-in refrigerator and the surrounding walls or cabinets is relatively small, and heat dissipation is carried out by means of bottom air inlet and bottom air outlet. The left and right sides of the bottom of the box body 100 may be respectively provided with a heat dissipation air inlet (disposed on the side of the condenser 500 ) and a heat dissipation air outlet (disposed on the side of the compressor 200 ). The heat dissipation fan 600 is disposed between the condenser 500 and the compressor 200 for forming a heat dissipation airflow for the condenser 500 and the compressor 200 to dissipate heat.

The lower part of the box body 100 forms a heat dissipation airflow duct, and the heat dissipation airflow duct is configured so that the heat dissipation airflow enters from the front part of the condenser 500 side (radiation air inlet), flows through the condenser 500 and the compressor 200 in sequence, and passes through the compressor. The front part (heat dissipation air outlet) on one side of the machine 200 is discharged. There is a thermal insulation layer between the compressor compartment 122 and the refrigeration chamber 151 to avoid loss of cooling capacity. In order to realize the above heat dissipation structure, a windshield strip 800 may also be provided at the bottom of the box body 100 to ensure the flow direction of the heat dissipation airflow.

The refrigerator 10 with the optimized installation structure of the evaporator 300 in this embodiment has completely changed the structure of the existing refrigerator. The vertical installation mode of the freezer is changed to a horizontal placement, which improves the height of the freezer compartment 111 and is convenient for users to operate. And since the evaporator 300 is no longer arranged on the back, the distance in the front and rear directions of the refrigerator 10 can be reduced, the utilization efficiency of the storage space of the refrigerator 10 can be improved, and the storage space of the freezer compartment 111 can be optimized.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. a kind of refrigerator, comprising:

Cabinet, its underpart limit freezing compartment, and the bottom of the freezing compartment is formed with cool room；

Evaporator, entirety are in flat rectangular body shape, are installed in the cool room；

Evaporator front apron is arranged as the cool room antetheca, and with the front interval of the evaporator；And

Evaporator the cover comprising the rake that is upwardly extended from the evaporator foreboard top droop and with the rake Connect and is set to the upper cover part above the evaporator；And the freezing compartment forms freezing in the top of the upper cover part Storage chamber offers the freezing return air inlet for being connected to the freezing storage chamber and the cool room on the rake.

2. refrigerator according to claim 1, wherein

The upper cover part to the top of the evaporator has an interval, is provided with induced draft plate in the interval, and described draws Aerofoil includes:

Back section is bonded with the rear portion at the top of the evaporator；

Angled section tilts extension from the front end of the back section upwards；

Front section, from the front end of the angled section be parallel to the evaporator top extend, and with the evaporator Top limits air-inducing passage and forms air-inducing passage, to draw passing through from the freezing return air stream of the freezing return air inlet Wind channel introduces the front of the front end of the evaporator and/or the top of the evaporator.

3. refrigerator according to claim 1, wherein

The front end of the front section is upturned, to expand the opening area of the air-inducing passage.

4. refrigerator according to claim 3, further includes:

Filling part is arranged between the induced draft plate and the upper cover part, so that the upper cover part compresses the evaporator.

5. refrigerator according to claim 1, wherein

The freezing return air inlet includes the return air grid of a plurality of longitudinal gap setting, and the upper limb of the every return air grid is provided with The shutter of the rake outer surface is protruded from, falls into the freezing return air inlet from top to avoid foreign matter.

6. refrigerator according to claim 1, further includes:

Supply air duct is set to the rear portion of the freezing compartment, and lower end has the air outlet for leading to the cool room rear portion, and Using leading to the freezing air inlet of the freezing compartment to freezing compartment's air feed；And the evaporator fan, it is set to At the air outlet, the indoor air of refrigeration is sent into the supply air duct, and the evaporator fan is configured to Relative to the evaporator in setting tilt angle.

7. refrigerator according to claim 6, wherein

The cabinet also at least limits a refrigerator room in the top of the freezing compartment, and the supply air duct is upward The rear portion of the refrigerator room is extended to, and is supplied using the refrigeration air inlet for leading to the refrigerator room to the refrigerator room Wind；And the refrigerator further include:

Return airway is set at least side of the cabinet, and the upper end is connected to the refrigerator room, and lower end is connected to described The front of cool room, so that the return air of the refrigerator room is led back the cool room.

8. refrigerator according to claim 6, wherein

The opening that the cool room is connected to the lower end of the return airway is set to the evaporator front apron and the evaporator Front end between interval side wall on.

9. refrigerator according to claim 6, wherein

The cabinet is also formed with press storehouse at the rear of the freezing compartment, and the roof in the press storehouse is located at the air-supply wind The lower section in road and the top for being lower than the evaporator, the bottom wall in the press storehouse are lower than the minimum point of the bottom wall of the cool room； And

The refrigerator further include: compressor, condenser and the cooling fan being arranged laterally at a spacing inside the press storehouse.

10. refrigerator according to claim 9, wherein

The bottom wall of the cool room is provided with drainage hole in minimum point in four circumferential centers gradually recessed shape；And it is described Refrigerator further include:

The evaporating dish being set in the press storehouse, and the drainpipe of the connection drainage hole, the drainpipe is from the row Water hole is extended obliquely downward to the evaporating dish, and the condensed water of the evaporator is arranged to the evaporating dish.