CN220771503U - Refrigerator with a refrigerator body - Google Patents

Abstract

The utility model belongs to the field of refrigeration equipment, and particularly provides a refrigerator. The utility model aims to solve the problem that the depth of a storage compartment corresponding to a side-by-side combination door body of the existing refrigerator is smaller. The refrigerator comprises a refrigerator body, an evaporator, an axial flow fan, a first air door, a second air door, a left return air door and a right return air door. The box body is provided with a left storage room, an intermediate refrigeration room and a right storage room which are distributed in sequence along the transverse direction, wherein the intermediate refrigeration room comprises a refrigeration cavity provided with an evaporator, a fan cavity provided with an axial flow fan, and a first communication port and a second communication port which are used for communicating the refrigeration cavity with the fan cavity and are respectively arranged at two sides of the axial flow fan in the axial direction. The first air door and the second air door respectively control the opening and the closing of the first communication port and the second communication port. The left air return air door is arranged between the left storage room and the middle refrigeration room, and the right air return air door is arranged between the right storage room and the middle refrigeration room. The present utility model overcomes the above-mentioned technical problems.

Description

Refrigerator with a refrigerator body

Technical Field

The utility model belongs to the field of refrigeration equipment, and particularly provides a refrigerator.

Background

Some conventional side-by-side refrigerators have a door body at the left and right sides corresponding to a storage compartment (e.g., a freezing compartment, a temperature-changing compartment, or a refrigerating compartment). The left storage room and the right storage room are not communicated with each other, and a vertical beam is arranged between the left storage room and the right storage room to ensure that doors on the left side and the right side can seal the corresponding storage rooms.

For example, the refrigerator is provided with a refrigerating compartment at an upper portion thereof and a freezing compartment and a temperature changing compartment which are laterally distributed at a lower portion thereof. The upper part adopts an independent door body to seal the refrigerating compartment, and the lower part adopts two door bodies which are opened in opposite directions to seal the freezing compartment and the variable-temperature compartment respectively.

The conventional side-by-side refrigerator having a freezing compartment at a lower portion thereof generally has an evaporator corresponding to the freezing compartment disposed at a rear side of the freezing compartment, resulting in a smaller depth of the freezing compartment and a smaller capacity of the refrigerator.

Disclosure of Invention

The utility model aims to solve the problem that the depth of a storage compartment corresponding to a side-by-side combination door body of the conventional refrigerator is small.

A further object of the utility model is how to control the temperature of the left and right compartments, respectively.

In order to achieve the above object, the present utility model provides a refrigerator, including a case, an evaporator, an axial fan, a first air door, a second air door, a left return air door and a right return air door, wherein the case is defined with:

the intermediate refrigeration compartment comprises a refrigeration cavity provided with the evaporator, a fan cavity provided with the axial flow fan, and a first communication port and a second communication port which are communicated with the fan cavity and are respectively arranged at two sides of the axial flow fan in the axial direction; the first air door is configured to open or shield the first communication port, and the second air door is configured to open or shield the second communication port;

a left storage compartment positioned at the left side of the intermediate refrigeration compartment and provided with at least one left air outlet communicated with the fan cavity and at least one left air return port communicated with the refrigeration cavity; the left return air door is configured to open or shield the left return air opening;

a right storage compartment located on the right side of the intermediate refrigeration compartment, and provided with at least one right air outlet communicated with the fan cavity and at least one right air return communicated with the refrigeration cavity; the right return air door is configured to open or conceal the right return air opening.

Optionally, the left air outlet is disposed on a right side wall of the left storage compartment, and the right air outlet is disposed on a left side wall of the right storage compartment.

Optionally, a left air supply channel is arranged on the side wall between the left storage compartment and the fan cavity, and the left air supply channel is respectively communicated with each left air outlet and the fan cavity; the side wall between the right storage compartment and the fan cavity is provided with a right air supply channel, and the right air supply channel is respectively communicated with each right air outlet and the fan cavity.

Optionally, the at least one left return air inlet is arranged on a side wall between the left storage compartment and the refrigeration cavity; the at least one right return air inlet is arranged on the side wall between the right storage compartment and the refrigerating cavity.

Optionally, the refrigeration cavity is disposed below the fan cavity.

Optionally, the left air return port and the right air return port are both located at the bottom of the refrigerating cavity.

Alternatively, the axial direction of the axial flow fan is parallel to the left-right direction of the refrigerator; the first communication port and the second communication port are both arranged on the side wall between the refrigerating cavity and the fan cavity.

Optionally, the case includes a vertical beam located between the left side storage compartment and the right side storage compartment in a lateral direction, the vertical beam being located at a front side of the intermediate refrigeration compartment.

Optionally, the left storage compartment is a freezer compartment, a variable temperature compartment, or a refrigerator compartment; the right storage compartment is a freezing compartment, a temperature changing compartment or a refrigerating compartment.

Optionally, the left side storage compartment, the right side storage compartment and the intermediate refrigeration compartment are all located at a lower portion of the cabinet.

Based on the foregoing, it will be appreciated by those skilled in the art that in the foregoing aspects of the utility model, by providing an intermediate refrigeration compartment between the left and right storage compartments and disposing the evaporator within the refrigeration compartment such that the evaporator is located on the rear side of the vertical beam between the left and right storage compartments, the depth of the storage compartment is increased as compared to the prior art arrangement of the evaporator on the rear side of the storage compartment.

Further, by arranging the axial flow fan in the fan cavity, the air supply capacity of the axial flow fan is increased under the condition that the dimension of the axial flow fan in the left-right direction is ensured not to be too large.

Further, a first communication port and a second communication port which are used for communicating the refrigerating cavity with the fan cavity are arranged, and the first communication port and the second communication port are respectively arranged at two sides of the axial flow fan in the axial direction; the refrigerator disclosed by the utility model can enable the axial flow fan to convey cold air in the refrigerating cavity into the left storage room or the right storage room by opening only one of the first air door and the second air door and opening only one of the left air door and the right air door, so that the temperature of the left storage room and the right storage room can be controlled respectively.

Further, by arranging the left air outlet on the right side wall of the left storage compartment, the right air outlet on the left side wall of the right storage compartment, the left return air inlet on the side wall between the left storage compartment and the refrigerating cavity, and the right return air inlet on the side wall between the right storage compartment and the refrigerating cavity, the air paths between the left storage compartment and the right storage compartment and the intermediate refrigerating compartment are shortened, and the air loss is reduced.

Other advantages of the present utility model will be described in detail hereinafter with reference to the drawings so that those skilled in the art can more clearly understand the improvements object, features and advantages of the present utility model.

Drawings

In order to more clearly illustrate the technical solution of the present utility model, some embodiments of the present utility model will be described hereinafter with reference to the accompanying drawings. It will be understood by those skilled in the art that components or portions thereof identified in different drawings by the same reference numerals are identical or similar; the drawings of the utility model are not necessarily to scale relative to each other. In the accompanying drawings:

fig. 1 is a schematic view showing the effect of a refrigerator body of a refrigerator according to the present utility model;

fig. 2 is a schematic diagram of a refrigerator according to some embodiments of the present utility model;

FIG. 3 is a schematic view of the refrigerator of FIG. 2 when the left storage compartment is being refrigerated;

fig. 4 is a schematic view of the refrigerator of fig. 2 when cooling the right storage compartment.

Detailed Description

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

It should be noted that, in the description of the present utility model, terms such as "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships, which are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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

In addition, it should be noted that, in the description of the present utility model, the terms "cooling capacity" and "heating capacity" are two descriptions of the same physical state. That is, the higher the "cooling capacity" of a certain object (for example, evaporator, air, condenser, etc.), the lower the "heat" of the object, and the lower the "cooling capacity" of the object, the higher the "heat" of the object. Some object absorbs the cold and releases the heat, and the object releases the cold and absorbs the heat. A target maintains "cold" or "heat" to maintain the target at a current temperature. "refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon, i.e., a target (e.g., an evaporator) absorbs heat while it is refrigerating.

As shown in fig. 1, in the present utility model, the refrigerator includes a cabinet 100, and the cabinet 100 may be divided into an upper portion (a portion above the dash-dot line of fig. 1) and a lower portion (a portion below the dash-dot line of fig. 1) as a whole. Wherein the upper portion defines a storage compartment, which may be a freezer compartment, a refrigerator compartment, or a variable temperature compartment, and which is provided with a separate evaporator 300 to cool it.

With continued reference to fig. 1, the lower portion of the case 100 includes a vertical beam 101, and the case 100 defines a left side storage compartment 110 and a right side storage compartment 120. Wherein the left storage compartment 110 is located at the left side of the vertical beam 101 and the right storage compartment 120 is located at the right side of the vertical beam 101.

It should be noted that, the case 100 shown in fig. 1 of the present utility model is intended to help those skilled in the art understand the technical solution of the present utility model, and does not indicate that the case 100 of the present utility model can only have the structure shown in fig. 1. In addition to the case 100 shown in fig. 1, the person skilled in the art may arrange the case 100 of the present utility model in any other possible form as desired. For example, at least one of the left and right storage compartments 110 and 120 is extended from the lower portion to the upper portion of the case 100, or both the left and right storage compartments 110 and 120 are provided at the upper portion of the case 100.

As shown in fig. 2, in some embodiments of the present utility model, at least one of the left and right storage compartments 110 and 120 may house a plurality of drawers 200. Preferably, a plurality of drawers 200 are respectively disposed in the left storage compartment 110 and the right storage compartment 120.

With continued reference to fig. 2, in some embodiments of the utility model, the refrigerator further includes an evaporator 300, an axial flow fan 400, a first damper 510, a second damper 520, a left return air damper 610, and a right return air damper 620. Wherein the evaporator 300 is used for cooling air around the evaporator, the axial flow fan 400 is used for delivering cold air around the evaporator 300 to the left storage compartment 110 and the right storage compartment 120, and the combination of the first air door 510, the second air door 520, the left return air door 610 and the right return air door 620 is used for controlling the left storage compartment 110 or the right storage compartment 120 to receive the cold air delivered by the axial flow fan 400.

As shown in fig. 1 and 2, in some embodiments of the present utility model, the cabinet 100 further defines an intermediate refrigerating compartment 130, and the intermediate refrigerating compartment 130 is located at the rear side of the vertical beam 101 to make full use of the space of the refrigerator.

It should be noted that, although the intermediate refrigeration compartment 130 is shown in fig. 2 as having a larger lateral dimension, its actual lateral dimension may be less than or equal to the lateral dimension of the vertical beam 101. The lateral dimensions of the intermediate refrigeration compartment 130 shown in fig. 2 of the present utility model are relatively large in order to facilitate understanding of the solution of the present utility model by those skilled in the art.

As shown in fig. 2, in some embodiments of the present utility model, the intermediate refrigeration compartment 130 includes a refrigeration cavity 131 and a fan cavity 132 in communication with each other, the refrigeration cavity 131 being provided with an evaporator 300, and an axial flow fan 400 for driving air in the refrigeration cavity 131 to flow toward the fan cavity 132.

As can be seen in fig. 2, the refrigeration cavity 131 is located below the blower cavity 132. Of course, one skilled in the art may also place the refrigeration cavity 131 above the blower cavity 132 as desired.

With continued reference to fig. 2, a first communication port 133 and a second communication port 134 are provided between the cooling chamber 131 and the blower chamber 132 to communicate the cooling chamber 131 with the blower chamber 132 through the first communication port 133 and the second communication port 134.

Further, the first communication port 133 and the second communication port 134 are disposed at both sides of the axial flow fan 400 in the axial direction.

As shown in fig. 2, in some embodiments of the present utility model, an axial direction of the axial flow fan 400 is parallel to a left-right direction of the refrigerator. And the first communication port 133 and the second communication port 134 are provided on the side wall between the cooling chamber 131 and the blower chamber 132.

In addition, the axial direction of the axial flow fan 400 may have a certain angle with the horizontal direction, for example, 3 °, 5 °, 7 °, 15 °, or the like, as required by those skilled in the art.

With continued reference to fig. 2, the left storage compartment 110 is configured with at least one left air outlet 111 in communication with the blower chamber 132 and at least one left return air inlet 112 in communication with the refrigeration chamber 131. The left return air door 610 is configured to open or block the left return air inlet 112.

Further, the left air outlet 111 is provided on the right side wall of the left storage compartment 110, and the right air outlet 121 is provided on the left side wall of the right storage compartment 120 to reduce the air supply path of the left storage compartment 110 and thus reduce the air supply resistance of the left storage compartment 110.

Still further, a left air supply passage 141 is provided on a sidewall between the left storage compartment 110 and the blower chamber 132, and the left air supply passage 141 communicates with each of the left air outlet 111 and the blower chamber 132, respectively.

With continued reference to fig. 2, the right storage compartment 120 is configured with at least one right air outlet 121 in communication with the blower chamber 132 and at least one right return air inlet 122 in communication with the refrigeration chamber 131. The right return air door 620 is configured to open or conceal the right return air opening 122.

Further, the right air outlet 121 is provided on the right side wall of the right storage compartment 120, and the right air outlet 121 is provided on the right side wall of the right storage compartment 120 to reduce the air supply path of the right storage compartment 120 and thus reduce the air supply resistance of the right storage compartment 120.

Still further, a right air supply passage 142 is provided on a sidewall between the right storage compartment 120 and the blower chamber 132, and the right air supply passage 142 communicates with each of the right air outlet 121 and the blower chamber 132, respectively.

With continued reference to fig. 2, the left return air inlet 112 is disposed on a sidewall between the left storage compartment 110 and the refrigeration cavity 131, and the right return air inlet 122 is disposed on a sidewall between the right storage compartment 120 and the refrigeration cavity 131. Specifically, the left return air inlet 112 penetrates the sidewall between the left storage compartment 110 and the refrigerating chamber 131, and the right return air inlet 122 penetrates the sidewall between the right storage compartment 120 and the refrigerating chamber 131.

Further, the left return air inlet 112 and the right return air inlet 122 are located at the bottom of the refrigerating chamber 131, so that the cold air flowing into the left storage compartment 110 and the right storage compartment 120 can flow through more areas of the left storage compartment 110 and the right storage compartment 120 as much as possible, and the temperatures of the left storage compartment 110 and the right storage compartment 120 are more uniform.

Optionally, the left return air inlet 112 is located at the bottom end of the right side wall of the left storage compartment 110, and the right return air inlet 122 is located at the bottom end of the right side wall of the right storage compartment 120.

With continued reference to fig. 2, in some embodiments of the utility model, the first communication port 133 is located on the right side of the axial flow fan 400 and the second communication port 134 is located on the left side of the axial flow fan 400. The first damper 510 is disposed at the first communication port 133, the second damper 520 is disposed at the second communication port 134, the left return air damper 610 is disposed at the left return air port 112, and the right return air damper 620 is disposed at the right return air port 122.

Wherein the first damper 510 and the left return air damper 610 are synchronously opened and closed to cool the left storage compartment 110 with cool air. The second damper 520 and the right return air damper 620 are synchronously opened and closed to cool the right storage compartment 120 with cool air.

Further, in the present utility model, at least one of the first damper 510, the second damper 520, the left return air damper 610, and the right return air damper 620 may be an electronically controlled damper.

The technical means for controlling the on-off of the air passage through the air door is conventional in the art, so that the detailed description is omitted here.

The cooling principle of the left and right storage compartments 110 and 120 in the present utility model will be described in detail with reference to fig. 3 and 4.

As shown in fig. 3, when only the left side storage compartment 110 of the left and right side storage compartments 110 and 120 needs to be cooled, the first damper 510 is opened, the second damper 520 is closed, the left side return air damper 610 is opened, and the right side return air damper 620 is closed. The axial flow fan 400 is controlled to rotate forward to drive air to flow along the following paths: the refrigerating chamber 131, the first communication port 133, the fan chamber 132, the left air supply channel 141, the left air outlet 111, the left storage room 110, the left air return 112 and the refrigerating chamber 131.

In this process, the right side of the axial flow fan 400 is the suction side, and the left side of the axial flow fan 400 is the supply side.

As shown in fig. 4, when only the right side compartment 120 of the left and right side compartments 110 and 120 requires cooling, the first damper 510 is closed, the second damper 520 is opened, the left side return air damper 610 is closed, and the right side return air damper 620 is opened. The axial flow fan 400 is controlled to reverse to drive the air to flow along the following paths: the refrigerating chamber 131, the second communication port 134, the fan chamber 132, the right air supply channel 142, the right air outlet 121, the right storage compartment 120, the right air return port 122 and the refrigerating chamber 131.

In this process, the left side of the axial flow fan 400 is the suction side, and the right side of the axial flow fan 400 is the supply side.

Based on the foregoing description, it can be appreciated by those skilled in the art that in some embodiments of the present utility model, by providing an intermediate refrigeration compartment 130 between the left and right storage compartments 110 and 120 and disposing the evaporator 300 within the refrigeration compartment such that the evaporator 300 is located on the rear side of the vertical beam 101 between the left and right storage compartments 110 and 120, the depth of the storage compartment is increased as compared to the prior art arrangement of the evaporator 300 on the rear side of the storage compartment.

Further, by disposing the axial flow fan 400 within the fan chamber 132, the air blowing capability of the axial flow fan 400 is also increased while ensuring that the axial flow fan 400 is not oversized in the left-right direction.

Further, by providing the first communication port 133 and the second communication port 134 that communicate the cooling chamber 131 with the fan chamber 132, the first communication port 133 and the second communication port 134 are disposed separately on both sides in the axial direction of the axial flow fan 400; the refrigerator of the present utility model can enable the axial flow fan 400 to deliver the cool air in the refrigerating chamber 131 into the left storage compartment 110 or the right storage compartment 120 in a forward or reverse rotation manner by opening only one of the first air door 510 and the second air door 520 and opening only one of the left air door 610 and the right air door 620, by configuring the first air door 510 to open or shield the first communication port 133, configuring the second air door 520 to open or shield the second communication port 134, configuring the left air door 610 to open or shield the left air return 112, configuring the left air door 610 to open or shield the right air return door 620 of the left air return 112, and configuring the right air door 620 to open or shield the right air return 122.

Further, by providing the left air outlet 111 on the right side wall of the left storage compartment 110, the right air outlet 121 on the left side wall of the right storage compartment 120, the left air return 112 on the side wall between the left storage compartment 110 and the refrigerating chamber 131, and the right air return 122 on the side wall between the right storage compartment 120 and the refrigerating chamber 131, the air path between each of the left storage compartment 110 and the right storage compartment 120 and the intermediate refrigerating compartment 130 is shortened, and the air loss is reduced.

Furthermore, in other embodiments of the present utility model, the location of the evaporator 300 and/or the blower may be adjusted as desired by one skilled in the art, such as by positioning the evaporator 300 in the blower cavity 132 and, for example, by positioning the blower below the evaporator 300.

Although not shown in the drawings, the refrigerator of the present utility model necessarily includes a refrigerating system including the evaporator 300 to supply cold to the evaporator 300 through the refrigerating system. Wherein, the refrigeration system comprises a compressor, a condenser, a depressurization member and an evaporator 300 which are connected end to end in sequence, so that the refrigerant circularly flows along the following paths: compressor→condenser→depressurization member→evaporator 300→compressor.

Specifically, when the refrigerant flows through the compressor, the refrigerant is compressed by the compressor into a high-temperature and high-pressure state (liquid state or gas-liquid mixed state). When the refrigerant flows through the condenser, the heat is radiated through the condenser, and the temperature is reduced to a low-temperature high-pressure state (liquid state or gas-liquid mixed state). When the refrigerant flows through the pressure reducing member, the refrigerant is throttled and reduced by the pressure reducing member to a low-temperature and low-pressure state (liquid state or gas-liquid mixed state). When the refrigerant flows through the evaporator 300, the evaporator 300 absorbs heat in the external environment, and the refrigerant is warmed up to a high-temperature low-pressure state (gaseous state).

The above-mentioned states of the refrigerant in the compressor, the condenser, the pressure reducing member, and the evaporator 300, that is, the high temperature, the low temperature, the high pressure, and the low pressure of the refrigerant are states of the refrigerant after entering the corresponding parts or before flowing out of the corresponding parts, as compared with states before flowing into the corresponding parts.

Thus far, the technical solution of the present utility model has been described in connection with the foregoing embodiments, but it will be readily understood by those skilled in the art that the scope of the present utility model is not limited to only these specific embodiments. The technical solutions in the above embodiments can be split and combined by those skilled in the art without departing from the technical principles of the present utility model, and equivalent changes or substitutions can be made to related technical features, so any changes, equivalent substitutions, improvements, etc. made within the technical principles and/or technical concepts of the present utility model will fall within the protection scope of the present utility model.

Finally, the refrigerator according to the present utility model is a refrigerator in a broad sense, and includes not only a refrigerator in a so-called narrow sense, but also a fresh-keeping apparatus having a refrigerating and/or freezing function, such as a refrigerator, a freezer, etc.

Claims (10)

1. The utility model provides a refrigerator, its characterized in that includes box, evaporimeter, axial fan, first air door, second air door, left side return air door and right side return air door, the box is limited with:

the intermediate refrigeration compartment comprises a refrigeration cavity provided with the evaporator, a fan cavity provided with the axial flow fan, and a first communication port and a second communication port which are communicated with the fan cavity and are respectively arranged at two sides of the axial flow fan in the axial direction; the first air door is configured to open or shield the first communication port, and the second air door is configured to open or shield the second communication port;

a left storage compartment positioned at the left side of the intermediate refrigeration compartment and provided with at least one left air outlet communicated with the fan cavity and at least one left air return port communicated with the refrigeration cavity; the left return air door is configured to open or shield the left return air opening;

a right storage compartment located on the right side of the intermediate refrigeration compartment, and provided with at least one right air outlet communicated with the fan cavity and at least one right air return communicated with the refrigeration cavity; the right return air door is configured to open or conceal the right return air opening.

2. The refrigerator according to claim 1, wherein,

the left air outlet is arranged on the right side wall of the left storage room, and the right air outlet is arranged on the left side wall of the right storage room.

3. The refrigerator according to claim 2, wherein,

a left air supply channel is arranged on the side wall between the left storage compartment and the fan cavity, and the left air supply channel is respectively communicated with each left air outlet and the fan cavity;

the side wall between the right storage compartment and the fan cavity is provided with a right air supply channel, and the right air supply channel is respectively communicated with each right air outlet and the fan cavity.

4. The refrigerator according to claim 1, wherein,

the at least one left return air inlet is arranged on the side wall between the left storage compartment and the refrigerating cavity;

the at least one right return air inlet is arranged on the side wall between the right storage compartment and the refrigerating cavity.

5. The refrigerator according to claim 4, wherein,

the refrigerating cavity is arranged below the fan cavity.

6. The refrigerator according to claim 5, wherein,

the left air return port and the right air return port are both positioned at the bottom of the refrigerating cavity.

7. The refrigerator according to claim 1, wherein,

the axial direction of the axial flow fan is parallel to the left-right direction of the refrigerator;

the first communication port and the second communication port are both arranged on the side wall between the refrigerating cavity and the fan cavity.

8. The refrigerator according to any one of claims 1 to 7, wherein,

the cabinet includes a vertical beam located between the left storage compartment and the right storage compartment in a lateral direction, the vertical beam being located at a front side of the intermediate cooling compartment.

9. The refrigerator according to any one of claims 1 to 7, wherein,

the left storage compartment is a freezing compartment, a temperature changing compartment or a refrigerating compartment;

the right storage compartment is a freezing compartment, a temperature changing compartment or a refrigerating compartment.

10. The refrigerator according to any one of claims 1 to 7, wherein,

the left side storage room, the right side storage room and the middle refrigeration room are all positioned at the lower part of the box body.