CN219889895U - Refrigerator with a refrigerator body - Google Patents

Abstract

The utility model discloses a refrigerator, which relates to the technical field of refrigeration equipment, and comprises: the air conditioner comprises a box body, an air supply assembly, an evaporator and a fan, wherein a middle beam is arranged in the box body, and a first compartment and a second compartment are formed in the box body; the air supply assembly comprises an air duct shell, a first air duct piece and a third air duct piece, wherein the air duct shell is provided with a heat exchange cavity, the air duct shell is respectively communicated with the first air duct piece and the third air duct piece, the air supply assembly is provided with a first return air duct and a second return air duct which are communicated with the heat exchange cavity, the air duct shell, the first return air duct and the second return air duct are positioned in the middle beam, the first return air duct is communicated with the first compartment, and the second return air duct is communicated with the second compartment; wherein, be equipped with the baffle in the wind channel casing, the baffle is located between first return air wind channel and the second return air wind channel. By adding a baffle between the tail ends of the first return air duct and the second return air duct, the two air ducts are separated by the baffle, and the back flow of the air in the two air ducts is prevented.

Description

Refrigerator with a refrigerator body

Technical Field

The utility model relates to the technical field of refrigeration equipment, in particular to a refrigerator.

Background

In the related art, an evaporator is generally arranged at the rear part of a box body of an air-cooled refrigerator, cold air is conveyed to a freezing chamber and a refrigerating chamber through a freezing air duct component and a refrigerating air duct component, however, the structure occupies the back space of the box body to affect the depth of a drawer, and the cold air is blown to the front end from the rear part of a compartment, and a ventilation path occupies the front and rear space of the box body to affect the depth of the drawer. The back of the evaporator is changed into a middle position, namely the evaporator is arranged at a middle beam of the side-by-side refrigerator, and the air duct is arranged inside the middle beam so as to increase the volume and the volume rate of the refrigerator body, but the problem of opposite blowing caused by the intersection of return air of different compartments can exist, and the negative influence is generated on the nearby area and the compartment temperature.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the refrigerator which can avoid the problem of opposite blowing at the return air junction.

According to an embodiment of the utility model, a refrigerator includes: the box body is internally provided with a middle beam, a first compartment and a second compartment are formed in the box body, and the first compartment and the second compartment are respectively positioned at the left side and the right side of the middle beam; the air supply assembly comprises an air duct shell, a first air duct piece and a third air duct piece, wherein the air duct shell is provided with a heat exchange cavity, the air duct shell is respectively communicated with the first air duct piece and the third air duct piece, the first air duct piece is used for supplying air to the first compartment, the third air duct piece is used for supplying air to the second compartment, the air supply assembly is provided with a first return air duct and a second return air duct which are communicated with the heat exchange cavity, the air duct shell, the first return air duct and the second return air duct are positioned in the middle beam, the first return air duct is communicated with the first compartment, and the second return air duct is communicated with the second compartment; the first return air duct and the second return air duct are oppositely arranged, a partition plate is arranged in the air duct shell, and the partition plate is positioned between the first return air duct and the second return air duct.

The refrigerator provided by the embodiment of the utility model has at least the following beneficial effects: by adding a baffle between the tail ends of the first return air duct and the second return air duct, the two air ducts are separated by the baffle, and the back flow of the air in the two air ducts is prevented.

According to some embodiments of the utility model, the first return air duct comprises a first return air section, the second return air duct comprises a second return air section and a third return air section, the first return air section, the second return air section and the third return air section are all arranged along the front-back direction, the second return air section and the first return air section are arranged side by side along the left-right direction, the third return air section and the first return air section are arranged in a collinear manner, and the partition plate is positioned between the third return air section and the first return air section.

According to some embodiments of the utility model, a thermal insulation material is arranged between the second return air section and the first return air section.

According to some embodiments of the utility model, the thermal insulation material is a vacuum insulation panel.

According to some embodiments of the utility model, the first return air duct is provided with a first inlet, the second return air duct is provided with a second inlet, air in the first compartment and the second compartment respectively enters the middle beam through the first inlet and the second inlet, and the first inlet and the second inlet are arranged in a staggered manner in the vertical direction.

According to some embodiments of the utility model, the minimum distance between the first inlet and the second inlet is greater than or equal to 30mm.

According to some embodiments of the utility model, the refrigerator comprises a first door body connected to the refrigerator body, the first door body is used for opening or closing the first compartment, a second ventilation pipe is arranged in the first door body, and the first return air duct is communicated with the first compartment through the second ventilation pipe.

According to some embodiments of the utility model, the first return air duct is provided with a first air guide section which is in butt joint with the second ventilation duct, and the end face of the first air guide section, which faces the first door body, is flush with the side face of the middle beam.

According to some embodiments of the utility model, the refrigerator comprises a second door body connected to the refrigerator body, the second door body is used for opening or closing the second compartment, a sixth ventilation pipe is arranged in the second door body, and the second return air duct is communicated with the second compartment through the sixth ventilation pipe.

According to some embodiments of the utility model, the second return air duct is provided with a second air guide section which is in butt joint with the sixth ventilating pipe, and the end face of the second air guide section facing the second door body is flush with the side face of the middle beam.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic view of a refrigerator according to an embodiment of the present utility model;

fig. 2 is a schematic view of the refrigerator shown in fig. 1 in one direction with the first door and the second door omitted;

fig. 3 is a schematic view of the refrigerator shown in fig. 1 in another direction with the first door and the second door omitted;

FIG. 4 is a schematic diagram of an assembled blower assembly, evaporator, fan according to an embodiment of the utility model;

FIG. 5 is a schematic view of one direction of the first door and the second door shown in FIG. 1;

FIG. 6 is a schematic view of the first door and the second door of FIG. 1 in another orientation;

fig. 7 is a vertical sectional view of the refrigerator shown in fig. 1;

fig. 8 is a horizontal sectional view of the refrigerator shown in fig. 1;

FIG. 9 is a schematic view of one embodiment of a first inlet and second inlet arrangement;

fig. 10 is a schematic view of another embodiment of a first inlet arrangement position.

Reference numerals:

101. a case; 102. a first door body; 103. a second door body;

201. a center sill; 202. a freezing chamber; 203. a refrigerating chamber; 204. a temperature changing chamber; 205. a first vent; 206. a second vent; 207. a fourth air port; 208. a fifth vent; 209. a sixth vent; 210. a cross beam;

401. an air duct housing; 402. a first air duct member; 403. a second air duct member; 404. a heat exchange cavity; 405. a blower; 406. an evaporator;

601. a first air outlet; 602. a first connection port; 603. a second connection port; 604. a first return air inlet; 605. a second air outlet; 606. a third air outlet; 607. a third connection port; 608. a fourth connection port; 609. a fifth connection port; 610. a sixth connection port; 611. a second return air inlet; 612. a third return air inlet;

701. a third air duct member; 702. a third vent; 703. a third air vent pipe; 704. a fourth air duct;

801. a second ventilation pipe; 802. a sixth ventilation pipe; 803. the first return air duct; 804. the second return air duct; 805. a partition plate; 806. a first return air section; 807. a second return air section; 808. a third return air section; 809. a first air guiding section; 810. the second air guide section;

901. a first inlet; 902. a second inlet.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 3, it can be understood that the side-by-side refrigerator includes a cabinet 101, a first door 102 and a second door 103, wherein the cabinet 101 has a refrigerating compartment therein, the first door 102 and the second door 103 are respectively pivotably provided on the cabinet 101 to open and close the refrigerating compartment together, and the first door 102 and the second door 103 are provided side-by-side. Specifically, the refrigeration compartment includes a first compartment and a second compartment, which are separated by a middle beam 201, i.e., the middle beam 201 is disposed between the first compartment and the second compartment to separate the first compartment from the second compartment, so as to ensure the refrigeration effect corresponding to the first compartment and the second compartment. The first door body 102 is pivotally connected to the case 101 and closes the first compartment, the second door body 103 is pivotally connected to the case 101 and closes the second compartment, and the second door body 103 and the first door body 102 are disposed opposite to each other in the left-right direction.

It is understood that the first compartment and the second compartment may be one of the freezing compartment 202, the refrigerating compartment 203, and the variable temperature compartment 204. It should be noted that, only two temperature areas of the freezing chamber 202 and the temperature changing chamber 204, or two temperature areas of the freezing chamber 202 and the refrigerating chamber 203, or more than four temperature areas may be provided in the case 101. A refrigerator having a first compartment as a freezing compartment 202, a second compartment as a refrigerating compartment 203, and a temperature changing compartment 204 will be described below as an example.

Referring to fig. 2 and 3, it can be understood that the freezing chamber 202, the refrigerating chamber 203, and the temperature changing chamber 204 are provided in the case 101, the freezing chamber 202 is located at the left side of the center sill 201, the refrigerating chamber 203 and the temperature changing chamber 204 are located at the right side of the center sill 201, and the refrigerating chamber 203 is located above the temperature changing chamber 204.

In the related art, a freezing air duct component and a refrigerating air duct component are disposed in the case 101, the freezing air duct component and the refrigerating air duct component are disposed at the rear of the case 101, and the evaporator 406 assembly is correspondingly disposed at the rear of the case 101. The freezing air outlet of the freezing air duct member is located at an upper side of the rear portion of the freezing chamber 202, and the freezing air return outlet of the freezing air duct member is located at a lower side of the rear portion of the freezing chamber 202. The refrigerating air outlet of the refrigerating air duct part is located at the upper side of the rear portion of the refrigerating chamber 203, and the refrigerating air return outlet of the refrigerating air duct part is located at the lower side of the rear portion of the refrigerating chamber 203. The freezing air duct part and the refrigerating air duct part are located in the back space of the cabinet 101, affecting the depth of the drawer. And the wind cooled by the evaporator 406 is blown from the rear of the cabinet 101 to the front of the cabinet 101, and when the food is stored more, the air quantity of the front of the cabinet 101 is smaller, resulting in an increase in the temperature of the food in the front of the cabinet 101.

Referring to fig. 4 and 7, it can be appreciated that the refrigerator according to the embodiment of the present utility model is provided with the air blowing assembly, and a portion of the air blowing assembly is installed inside the center sill 201, and the center sill 201 has a certain thickness capable of accommodating a portion of the air blowing assembly and the heat insulation layer. The air supply assemblies are also arranged vertically, depending on the shape of the center sill 201. The air supply assembly comprises an air duct shell 401, a first air duct piece 402, a second air duct piece 403 and a third air duct piece 701, a heat exchange cavity 404 is formed in the air duct shell 401, a fan 405 and an evaporator 406 are arranged in the heat exchange cavity 404, the first air duct piece 402 and the second air duct piece 403 are connected to the top of the air duct shell 401, and the third air duct piece 701 is connected to the side face of the air duct shell 401.

Referring to fig. 2, 3 and 7, it can be appreciated that the side of the first air channel member 402 adjacent to the freezing chamber 202 is provided with the first ventilation opening 205, and the first ventilation opening 205 is disposed toward the first door 102. The second air duct member 403 is provided with a second air opening 206 at a side surface thereof adjacent to the refrigerating chamber 203, and the second air opening 206 is provided toward the second door 103. The side surface of the third air duct member 701, which is close to the temperature changing chamber 204, is provided with a third air port 702, and the third air port 702 is provided toward the second door 103. The air duct housing 401 is provided with a fourth air opening 207, a fifth air opening 208 and a sixth air opening 209, the fourth air opening 207 is positioned on one side of the air duct housing 401 close to the freezing chamber 202, the fifth air opening 208 is positioned on one side of the air duct housing 401 close to the refrigerating chamber 203, the sixth air opening 209 is positioned on one side of the air duct housing 401 close to the temperature-changing chamber 204, the fourth air opening 207 is arranged towards the first door 102, and the fifth air opening 208 and the sixth air opening 209 are arranged towards the second door 103.

Referring to fig. 5 and 6, it can be understood that the first door 102 is provided with a first air outlet 601, a first connection port 602, a second connection port 603, and a first air return port 604. The second door 103 is provided with a second air outlet 605, a third air outlet 606, a third connection port 607, a fourth connection port 608, a fifth connection port 609, a sixth connection port 610, a second air return 611 and a third air return 612.

Referring to fig. 7 and 8, it may be understood that a first ventilation pipe and a second ventilation pipe 801 are disposed in the first door body 102, a first air outlet 601 and a first connection port 602 are disposed at two ends of the first ventilation pipe, and a second connection port 603 and a first air return port 604 are disposed at two ends of the second ventilation pipe 801. A first air duct is arranged in the first ventilation pipe, a second air duct is arranged in the second ventilation pipe 801, the first air duct is communicated with the first air outlet 601 and the first connecting port 602, the second air duct is communicated with the second connecting port 603 and the first air return port 604, and the first air outlet 601 and the first air return port 604 are arranged towards the freezing chamber 202.

The second door body 103 is internally provided with a third air duct 703, a fourth air duct 704, a fifth air duct and a sixth air duct 802, the second air outlet 605 and the third connecting port 607 are arranged at two ends of the third air duct 703, a third air duct is arranged in the third air duct 703, and the third air duct is communicated with the second air outlet 605 and the third connecting port 607. The third air outlet 606 and the fourth connection port 608 are arranged at two ends of the fourth air duct 704, a fourth air duct is arranged in the fourth air duct 704, and the fourth air duct is communicated with the third air outlet 606 and the fourth connection port 608. The fifth connection port 609 and the second air return port 611 are arranged at two ends of the fifth ventilation pipe, a fifth air channel is arranged in the fifth ventilation pipe, and the fifth air channel is communicated with the fifth connection port 609 and the second air return port 611. The sixth connection port 610 and the third air return port 612 are disposed at two ends of the sixth ventilation pipe 802, and a sixth air duct is disposed in the sixth ventilation pipe 802 and is communicated with the sixth connection port 610 and the third air return port 612. The second air outlet 605 and the second air return 611 are disposed toward the refrigerating chamber 203, and the third air outlet 606 and the third air return 612 are disposed toward the temperature changing chamber 204.

Referring to fig. 7 and 8, it will be appreciated that the first connection port 602 interfaces with the first vent 205 such that the first vent tube communicates with the first air channel member 402. The third connection port 607 interfaces with the second ventilation port 206 such that the third ventilation duct 703 communicates with the second duct member 403. The fourth connection port 608 interfaces with the third air port 702 such that the fourth air duct 704 communicates with the third air duct member 701.

Similarly, the second connection port 603 and the fourth air port 207 are in butt joint, so that the second air ventilation pipe 801 is communicated with the air duct housing 401. The fifth connection port 609 interfaces with the fifth vent 208 such that the fifth vent tube communicates with the air chute housing 401. The sixth connection port 610 and the sixth vent 209 are docked such that the sixth vent tube 802 communicates with the air duct housing 401.

Therefore, when the refrigerator is operated, the fan 405 drives air to flow, the air flows through the evaporator 406, and the refrigerant in the evaporator 406 is evaporated to absorb heat, so as to prepare cold air.

Cold air flows out of the first air duct member 402, enters the first ventilation pipe through the first ventilation opening 205 and the first connection port 602, flows out of the first air outlet 601 and enters the freezing chamber 202, and cools the articles in the freezing chamber 202. The air flow after heat exchange enters the second ventilation pipe 801 from the first air return port 604, then enters the air duct shell 401 from the second connecting port 603 and the fourth air return port 207, and flows back to the heat exchange cavity 404, so that the refrigeration cycle of the freezing chamber 202 is formed.

The cold air flows out of the second air duct member 403, enters the third air duct 703 through the second air vent 206 and the third connection port 607, flows out of the second air outlet 605 and enters the refrigerating chamber 203, and cools the articles in the refrigerating chamber 203. The air flow after heat exchange enters the fifth ventilation pipe from the second air return port 611, then enters the air duct housing 401 from the fifth connection port 609 and the fifth ventilation port 208, and flows back to the heat exchange cavity 404, so that the refrigeration cycle of the refrigerating chamber 203 is formed.

Cold air flows out of the third air duct member 701, enters the fourth air duct 704 through the third air port 702 and the fourth connecting port 608, flows out of the third air outlet 606 and enters the temperature changing chamber 204, and cools the articles in the temperature changing chamber 204. The air flow after heat exchange enters the sixth ventilation pipe 802 from the third air return port 612, then enters the air duct housing 401 from the sixth connection port 610 and the sixth air vent 209, and flows back to the heat exchange cavity 404, so that the refrigeration cycle of the temperature changing chamber 204 is formed.

According to the refrigerator disclosed by the embodiment of the utility model, the first air duct piece 402, the second air duct piece 403, the fan 405 and the evaporator 406 are arranged in the middle beam 201, so that the depth space of the refrigerator is not occupied, the depth dimensions of the refrigerating chamber 203, the freezing chamber 202 and the temperature changing chamber 204 are increased, the storage space is increased, more objects can be accommodated, and the refrigerator is convenient to use. The fan 405 of the air supply assembly drives air to flow, cold air is produced through the evaporator 406, the cold air is split and enters the first air duct piece 402, the second air duct piece 403 and the third air duct piece 701, and then enters the freezing chamber 202, the refrigerating chamber 203 and the temperature changing chamber 204 through the first ventilating pipe, the third ventilating pipe 703 and the fourth ventilating pipe 704 on the first door body 102 and the second door body 103, so that the temperature of the freezing chamber 203, the refrigerating chamber 202 and the temperature changing chamber 204 is reduced, and a low-temperature environment is maintained. By utilizing the ventilation inside the first door body 102 and the second door body 103, the depth space of the refrigerator is not occupied, the drawer depth is increased, and the use volume is increased.

The first ventilation pipe, the second ventilation pipe 801, the third ventilation pipe 703, the fourth ventilation pipe 704, the fifth ventilation pipe and the sixth ventilation pipe 802 may be separate pipes or may be a space with an air duct formed inside the first door 102 and the second door 103.

Referring to fig. 2, 3 and 7, it can be understood that the cross beam 210 is disposed between the refrigerating chamber 203 and the temperature changing chamber 204, the cross beam 210 plays a role in supporting and heat insulation, the third air duct member 701 can be installed inside the cross beam 210, and the third air port 702 is opened at one side of the cross beam 210 close to the second door body 103 and is communicated with the fourth connection port 608, so that cold air can be delivered.

It will be appreciated that the third air duct member 701 may also be provided on the center sill 201, that is, the third air duct member 701 may serve as part of the inner wall of the temperature changing chamber 204, and the third air port 702 may be provided on the side of the center sill 201 adjacent to the temperature changing chamber 204.

Referring to fig. 8, it will be appreciated that the air supply assembly is provided with a first return air duct 803 and a second return air duct 804, the first return air duct 803 and the second return air duct 804 being located within the center sill 201, the first return air duct 803 being in communication with the freezer compartment 202 and the heat exchange cavity 404, and the second return air duct 804 being in communication with the temperature change compartment 204 and the heat exchange cavity 404. That is, the air in the freezing chamber 202 flows back into the heat exchange cavity 404 through the first return air duct 803, continues to exchange heat with the evaporator 406, and then continues to flow into the freezing chamber 202 under the action of the fan 405. The air in the temperature changing chamber 204 flows back into the heat exchange cavity 404 through the second return air duct 804, continues to exchange heat with the evaporator 406, and then continues to flow into the temperature changing chamber 204 under the action of the fan 405.

In the related art, the first return air duct 803 and the second return air duct 804 are located at the lower portion of the middle beam 201, and the first return air duct 803 and the second return air duct 804 are located at opposite sides of the middle beam 201, that is, the first return air duct 803 is close to the freezing chamber 202, and the second return air duct 804 is close to the temperature changing chamber 204. The first return air duct 803 and the second return air duct 804 are both communicated with the heat exchange cavity 404, and because the temperature-changing return air and the freezing return air are both returned from the bottom of the evaporator 406, the first return air duct 803 and the second return air duct 804 are finally converged together, and the temperatures of the freezing chamber 202 and the temperature-changing chamber 204 are different, the return air converged positions are opposite-blowing, have a reflux risk, and the temperatures are more or less mutually interfered. Based on this, the embodiment of the present utility model designs a separation structure to separate the return air ducts of the freezing chamber 202 and the temperature changing chamber 204.

Referring to fig. 8, it can be appreciated that the first return air duct 803 includes a first return air section 806, the first return air section 806 being located at a side of the center sill 201 near the freezing compartment 202, the first return air section 806 being disposed in a front-rear direction. The second return air duct 804 includes a second return air section 807 and a third return air section 808, where the second return air section 807 and the third return air section 808 are both disposed along the front-rear direction, the second return air section 807 is located on one side of the middle beam 201 near the variable temperature chamber 204, and the second return air section 807 and the first return air section 806 are disposed side by side along the left-right direction, that is, the second return air section 807 and the first return air section 806 are disposed in parallel, and the second return air section 807 and the first return air section 806 are disposed at intervals in the left-right direction. The third air return section 808 is located on a side of the center sill 201 near the freezing chamber 202, and the third air return section 808 is arranged in line with the first air return section 806, i.e. the third air return section 808 and the first air return section 806 are arranged at intervals in the front-rear direction.

The air flow direction of the first return air duct 803 is from the front end of the first return air section 806 to the rear end of the first return air section 806 and up into the heat exchange cavity 404 to the bottom of the evaporator 406. The air flow direction of the second return air duct 804 is from the front end of the second return air section 807 to the rear end of the second return air section 807, into the rear end of the third return air section 808, toward the front end of the third return air section 808, and upward into the heat exchange chamber 404 to the bottom of the evaporator 406. That is, the air flow in the third air return section 808 and the air flow in the first air return section 806 flow in opposite directions, and the partition 805 is arranged between the third air return section 808 and the first air return section 806 in the embodiment of the utility model, so that the air return intersection of the freezing chamber 202 and the temperature changing chamber 204 is prevented from being blown in opposite directions. If the locations are not separated, the air in the first return air duct 803 and the second return air duct 804 may directly blow, and there is a risk of backflow, for example, the return air in the freezing chamber 202 enters the temperature changing chamber 204, and affects the temperature of the temperature changing chamber 204.

Referring to fig. 8, it may be understood that the first return air duct 803 is provided with a first air guiding section 809, one end of the first air guiding section 809 is in butt joint with the second air guiding section 801, the other end of the first air guiding section 809 is connected with the first return air section 806, and air in the freezing chamber 202 enters the first air guiding section 809 through the second air guiding section 801 and returns to the heat exchanging cavity 404 through the first air guiding section 809. The first return air section 806 is disposed obliquely, the first return air section 806 passes through the insulation of the intermediate partition 805 and one end enters the freezer compartment 202. The end face of the first air guiding section 809 facing the first door body 102 is flush with the side face of the middle beam 201, so that the extending length of the second air guiding pipe 801 is small, and the inner side face of the first door body 102 is smoother.

Similarly, referring to fig. 8, it may be understood that the second return air duct 804 is provided with a second air guiding section 810 that is abutted with the sixth ventilating duct 802, and an end surface of the second air guiding section 810 facing the second door 103 is flush with a side surface of the center sill 201.

It will be appreciated that if the air temperature is reduced by maintaining the humidity of the air, the partial pressure of the water vapour reaches a saturation pressure corresponding to the current air temperature when the temperature is reduced to a certain value, and the water vapour in the air under this condition is saturated. If the air temperature is reduced even further, water vapor condenses out of the air to form "dew droplets". This phenomenon is called "condensation".

The thickness of the middle beam 201 of this scheme is enough big, and the distance of the left and right sides of middle beam 201 is enough big promptly to make the distance of first return air section 806 and second return air section 807 interval big enough, and then make there is sufficient space between first return air section 806 and the second return air section 807 to place sufficient insulation material, insulation material can reduce the heat exchange between first return air section 806 and the second return air section 807, reduces the lift temperature rate in first return air wind channel 803 and the second return air wind channel 804. By reducing the temperature rise and fall rates of the first return air duct 803 and the second return air duct 804, the effect of reducing condensation is achieved.

However, the thickness of the middle beam 201 is not generally set to be very thick in consideration of other factors such as cost and capacity of the refrigerator, so in order to avoid condensation inside the air duct, two solutions are provided in the embodiments of the present utility model.

One of the solutions is to provide VIP insulation material, i.e. vacuum insulation panels, between the center sills 201. VIP is one of the abbreviations of english Vacuum Insulation Panel and vacuum insulation materials. The vacuum heat insulation plate is formed by compounding a filling core material and a vacuum protection surface layer, and can effectively avoid heat transfer caused by air convection, so that the heat conductivity coefficient can be greatly reduced. That is, by using a vacuum insulation panel, the thickness requirement of the center sill 201 can be reduced.

Alternatively, the first return air duct 803 is provided with a first inlet 901, and the first inlet 901 is located at a position where the first return air duct 803 meets the center sill 201. For example, when the first return air duct 803 protrudes from the center sill 201, the first inlet 901 is located at a position where one protruding end of the first return air duct 803 intersects with the outer surface of the center sill 201. When the first return air duct 803 does not protrude from the center sill 201, as shown in fig. 9, the first inlet 901 is located at the surface of the center sill 201.

Similarly, the second return air duct 804 is provided with a second inlet 902, and the second inlet 902 is located at a position where the second return air duct 804 meets the center sill 201. As shown in fig. 9, the first inlet 901 and the second inlet 902 are arranged in a staggered manner in the vertical direction, specifically, the height of the first inlet 901 is lower than the height of the second inlet 902. By the dislocation arrangement, the heat exchange distance between the return air of the freezing chamber 202 and the return air of the temperature changing chamber 204 is longer, which is beneficial to reducing the temperature rising and falling speed, thereby reducing the condensation.

It should be noted that the first inlet 901 and the second inlet 902 are arranged in a staggered manner in the vertical direction, and a scheme in which the height of the first inlet 901 is higher than that of the second inlet 902 is also included.

It is understood that the minimum distance L between the first inlet 901 and the second inlet 902 is 30mm or more. Through multiple verification, the first inlet 901 and the second inlet 902 have a height difference in the vertical direction, and the minimum value of the distance between the first inlet 901 and the outer edge of the second inlet 902 is greater than or equal to 30mm, so that condensation can be obviously reduced, and the thickness of the middle beam 201 in the left-right direction does not need to be increased.

It will be appreciated that the first inlet 901 and the second inlet 902 may be located at other positions than the left and right sides of the center sill 201 as shown in fig. 2 and near the front side of the center sill 201. Referring to fig. 9, it is to be understood that the first inlet 901 and the second inlet 902 may be located at the front side of the center sill 201. Referring to fig. 10, it will be appreciated that the first inlet 901 may be located on the left side of the center sill 201 and near the center sill 201, i.e., the freezing compartment 202 does not return air through the second door 103, but rather enters the center sill 201 directly from the freezing compartment 202. Similarly, the second inlet 902 may also be located on the right side of the center sill 201 and near the center sill 201.

Referring to fig. 10, it will be appreciated that the first ventilation opening 205 may be located on the left side of the center sill 201 and near the center of the center sill 201, i.e., the first air duct member 402 may blow air directly into the freezing compartment 202 through the first ventilation opening 205, rather than through the second door 103. Similarly, the refrigerator 203 and the freezer 202 may not be supplied with air through the first door 102.

It should be noted that, the machine type shown in the above embodiment is a machine type with a temperature changing space, that is, the bottom space of the right side compartment is the temperature changing chamber 204, and the technical scheme that the right side compartment is single refrigeration is also applicable to the above-mentioned refrigerator except for the type of side-by-side refrigerator, that is, the two sides of the middle beam 201 are the freezing chamber 202 and the refrigerating chamber 203 respectively.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. A refrigerator, comprising:

the box body is internally provided with a middle beam, a first compartment and a second compartment are formed in the box body, and the first compartment and the second compartment are respectively positioned at the left side and the right side of the middle beam;

the air supply assembly comprises an air duct shell, a first air duct piece and a third air duct piece, wherein the air duct shell is provided with a heat exchange cavity, the air duct shell is respectively communicated with the first air duct piece and the third air duct piece, the first air duct piece is used for supplying air to the first compartment, the third air duct piece is used for supplying air to the second compartment, the air supply assembly is provided with a first return air duct and a second return air duct which are communicated with the heat exchange cavity, the air duct shell, the first return air duct and the second return air duct are positioned in the middle beam, the first return air duct is communicated with the first compartment, and the second return air duct is communicated with the second compartment;

the evaporator is positioned in the heat exchange cavity;

the fan supplies air to the first air duct piece and the third air duct piece;

the first return air duct and the second return air duct are oppositely arranged, a partition plate is arranged in the air duct shell, and the partition plate is positioned between the first return air duct and the second return air duct.

2. The refrigerator of claim 1, wherein the first return air duct comprises a first return air section, the second return air duct comprises a second return air section and a third return air section, the first return air section, the second return air section and the third return air section are all arranged in a front-rear direction, the second return air section and the first return air section are arranged side by side in a left-right direction, the third return air section and the first return air section are arranged in a line, and the partition is positioned between the third return air section and the first return air section.

3. The refrigerator of claim 2, wherein a thermal insulation material is disposed between the second return air section and the first return air section.

4. A refrigerator according to claim 3, wherein the thermal insulation material is a vacuum insulation panel.

5. The refrigerator of claim 1, wherein the first return air duct is provided with a first inlet, the second return air duct is provided with a second inlet, air in the first compartment and the second compartment respectively passes through the first inlet and the second inlet to enter the middle beam, and the first inlet and the second inlet are arranged in a staggered manner in a vertical direction.

6. The refrigerator of claim 5, wherein a minimum distance between the first inlet and the second inlet is 30mm or more.

7. The refrigerator of claim 1, comprising a first door connected to the cabinet, the first door being configured to open or close the first compartment, a second ventilation duct being provided in the first door, the first return air duct being in communication with the first compartment through the second ventilation duct.

8. The refrigerator of claim 7, wherein the first return air duct is provided with a first air guide section in butt joint with the second ventilation duct, and an end face of the first air guide section facing the first door body is flush with a side face of the middle beam.

9. The refrigerator of claim 1, wherein the refrigerator includes a second door connected to the cabinet for opening or closing the second compartment, a sixth ventilation duct is provided in the second door, and the second return air duct communicates with the second compartment through the sixth ventilation duct.

10. The refrigerator of claim 9, wherein the second return air duct is provided with a second air guide section which is in butt joint with the sixth ventilating duct, and an end face of the second air guide section, which faces the second door body, is flush with a side face of the middle beam.