WO2019120107A1

WO2019120107A1 - Refrigerator

Info

Publication number: WO2019120107A1
Application number: PCT/CN2018/120335
Authority: WO
Inventors: 黄凯; 付伟健; 李兴伟; 张珩
Original assignee: 青岛海尔股份有限公司
Priority date: 2017-12-22
Filing date: 2018-12-11
Publication date: 2019-06-27
Also published as: CN108253690A

Abstract

Disclosed is a refrigerator (100), comprising a cabinet (110) defining a refrigeration chamber (120); a refrigeration chamber door (150) comprising a door body (150a), a door liner (150b) and a foaming layer; and a door side air-inlet duct (151) and a door side air-return duct (152). The top of the cabinet (110) is provided with an accommodation box (170), with an ice-making cooling chamber (171) being formed therein, and an ice-making evaporator (180) and a fan (190) are arranged in the ice-making cooling chamber (171). The ice-making chamber (153) having an ice maker (200) arranged therein is formed within the door liner (150b). A top air supply chamber (172) is further formed in the accommodation box (170), and a top air-inlet duct (172a) and a top air-return duct (172b) are formed in the top air supply chamber (172). The door side air-inlet duct (151) is provided in the refrigeration chamber door (150), and is configured to be connected to and in communication with the top air-inlet duct (172a) when the refrigeration chamber door (150) is closed. The door side air-return duct (152) is provided in the refrigeration chamber door (150) and is configured to be connected to and in communication with the top air-return duct (172b) when the refrigeration chamber door (150) is closed.

Description

refrigerator

Technical field

The invention relates to the field of home appliance technology, and in particular to a refrigerator.

Background technique

At present, an ice making device is generally provided on a refrigerator used in people's daily life, and the ice making device may be disposed in a freezing chamber of the refrigerator or may be disposed on a door body of the refrigerator. In order to save space in the freezer compartment, the prior art refrigerator usually has an ice making device disposed on the door body, and the ice making device usually introduces cold air in the freezer compartment of the refrigerator into the ice making device through the air duct to make ice. .

The cooling capacity of the ice making device in the above-mentioned refrigerator is extracted from the freezing evaporator, and the freezing evaporator mainly supplies the freezing chamber, and the distance from the freezing evaporator to the ice making chamber is long, and the cooling amount is lost on the way. Larger, the final cooling capacity of the ice making room is limited, resulting in a small amount of ice making.

Summary of the invention

In view of the above problems, it is an object of the present invention to provide a refrigerator that overcomes the above problems or at least partially solves the above problems.

A further object of the invention is to improve the ice making efficiency of a refrigerator.

The invention provides a refrigerator comprising:

The box body defines a refrigerator compartment with an open front side, a top of the box body is provided with a receiving box, an ice making and cooling chamber is formed in the receiving box, and an ice making evaporator is arranged in the ice making and cooling chamber. a fan that blows a cold airflow around the ice making evaporator;

a refrigerator compartment door connected to the front side of the refrigerating compartment to close the refrigerating compartment, the refrigerating compartment door body comprising a door body, a door lining on the inner side of the door body and a foam layer between the door body and the door biliary An ice making chamber is recessed in an inner side thereof toward the door body, and an ice making machine is arranged in the ice making chamber;

A top air supply chamber is also formed in the accommodating box, and the top air supply chamber is formed or provided with a top air inlet duct for receiving the cold airflow blown by the fan and for guiding the airflow after heat exchange with the ice machine The top return air duct at the ice evaporator;

The door side inlet air duct is disposed in the refrigerator compartment door, and is configured to be connected and communicated with the top inlet air duct when the refrigerator compartment door is closed to guide the cold airflow to the ice maker;

The door side return air duct is disposed in the refrigerator compartment door, and is configured to be connected and communicated with the top return air duct when the refrigerator compartment door is closed to guide the airflow after heat exchange with the ice maker to the top back. Windy winds.

Optionally, the top air supply chamber is located at a front side of the ice making and cooling chamber;

The top inlet air duct and the top return air duct are arranged in the order of the width direction of the box body, and the top inlet air duct and the top return air duct are extended from the rear side of the accommodating box to the accommodating box toward the refrigerating chamber door body. One side.

Optionally, the receiving box faces the side of the refrigerating chamber door body respectively forming a receiving box outlet communicating with the top inlet air duct and a receiving box inlet communicating with the top return air duct;

A door body side inlet is formed at a position of the door body facing the box body opposite to the housing box outlet. When the refrigerator compartment door body is closed, the door body side inlet is docked with the receiving box outlet to connect the door body side inlet air duct with The top inlet air duct is connected;

a door body side outlet is formed at a position of the door body facing the box body opposite to the housing box inlet. When the refrigerator compartment door body is closed, the door body side outlet is docked with the receiving box inlet to connect the door body side return air duct with The top return air duct is connected.

Optionally, an opening is formed on a side of the door body toward the door body, and the ice making chamber is recessed into the foam layer through the opening;

The door side inlet air duct is disposed in the foam layer, and includes a first air inlet straight section, an air inlet curved section and a second air inlet straight section which are sequentially connected in the refrigerant flow direction;

The leading end of the first inlet straight section passes through the door body side inlet to communicate with the top inlet air duct when the refrigerating compartment door body is closed, and the first inlet straight section is directed from the front end thereof toward the front side of the door body extend;

The inlet end of the inlet section is connected and communicated with the outlet end of the first inlet straight section, and the outlet end of the inlet section extends downwardly to transition to the second inlet straight section;

The forward end of the second inlet straight section is connected to the outlet end of the inlet section, and the outlet end of the second inlet section extends down to the ice maker to direct the cold airflow to the ice maker.

Optionally, the door side return air duct is disposed in the foam layer, and includes a first return air straight section, a return air curved section and a second return air straight section which are sequentially connected in a direction opposite to a flow direction of the refrigerant. ;

The outlet end of the first return air straight section passes through the door body side outlet to communicate with the top return air duct when the refrigerating compartment door body is closed, and the first return air straight section extends from the outlet end thereof toward the front side of the door body ;

The exit end of the return air section is connected and communicated with the forward end of the first return air straight section, and the forward end of the return air curved section is bent downward to transition to the second return air straight section;

The outlet end of the second return air straight section is connected and communicated with the forward end of the return air section, and the feed end of the second return air straight section extends downward to the ice maker.

Optionally, the refrigerator further includes:

a first elastic sealing ring disposed at an outer circumference of the door body side inlet or an outer circumference of the housing box outlet to seal the connection between the door body side inlet air duct and the top inlet air duct when the refrigerating chamber door body is closed;

The second elastic sealing ring is disposed on the outer circumference of the door body side outlet or the outer circumference of the receiving box inlet to seal the connection between the door body side return air duct and the top return air duct when the refrigerating chamber door body is closed.

Optionally, the ice making and cooling chamber is insulated from the external environment, and the top air supply chamber is insulated from the external environment;

The top inlet air duct is insulated from the top return air duct.

Optionally, the ice making evaporator is a coil type evaporator, and the ice making evaporator is vertically arranged in the ice making and cooling chamber; the fan is an axial flow fan.

Optionally, the refrigerator further includes:

The compressor and the condenser, the compressor, the condenser and the ice making evaporator are sequentially connected through the refrigerant pipeline, and constitute a refrigerant circulation loop;

A mechanical chamber is also formed in the accommodating box, and a compressor and a condenser are arranged in the mechanical chamber, and the mechanical chamber is insulated from the ice making and cooling chamber, and is insulated from the top air supply chamber.

Optionally, the top air supply chamber, the ice making and cooling chamber, and the mechanical chamber are sequentially distributed from front to back along the thickness direction of the box.

The refrigerator of the present invention is provided with a receiving box at the top of the box body, and an ice making and cooling chamber and a top air blowing chamber are formed in the receiving box, which fully utilizes the head space of the box body, and does not have to be arranged for ice evaporation. The space occupied by the refrigerator and the air duct does not need to change the structure of the refrigerator compartment, and has little influence on the structure of the refrigerator itself, and can provide sufficient ice capacity for the ice maker to improve the ice making efficiency of the ice maker.

Further, in the refrigerator of the present invention, the top inlet air duct, the door side air inlet duct and the specially designed top return air duct and the door side return air duct are specially designed, and the top inlet wind is shortened. The length of the track and the length of the inlet air duct on the side of the door shorten the length of the top return air duct and the door side return air duct, simplifying the arrangement of the air duct, greatly shortening the path length of the air flow, and reducing the air flow. The resistance increases the amount of air delivered to the ice machine and can effectively reduce the loss of cooling capacity.

Further, in the refrigerator of the present invention, a mechanical chamber is further formed in the accommodating box, and the compressor and the condenser are arranged in the mechanical chamber, which facilitates the pipeline connection between the compressor, the condenser and the ice making evaporator. It simplifies the piping layout and facilitates the transportation of refrigerant.

The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the <

DRAWINGS

Some specific embodiments of the present invention are described in detail below by way of example, and not limitation. The same reference numbers in the drawings identify the same or similar parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the figure:

1 is a schematic structural view of a refrigerator in accordance with one embodiment of the present invention;

2 is a cross-sectional view of a refrigerator in accordance with one embodiment of the present invention;

3 is a schematic structural view of a refrigerator in which a refrigerator compartment door is opened, according to an embodiment of the present invention;

Fig. 4 is an enlarged view of a portion A in Fig. 1.

Detailed ways

The present embodiment first provides a refrigerator 100, FIG. 1 is a schematic structural view of a refrigerator 100 according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the refrigerator 100 according to an embodiment of the present invention.

Referring to FIG. 1 and FIG. 2, the refrigerator 100 generally includes a case 110. The case 110 defines at least one front open storage compartment, and the outer periphery of the storage compartment is covered with a case outer casing. An insulating material, such as a blowing agent, is filled between the storage compartment to avoid loss of cooling. There are usually a plurality of storage compartments, such as a refrigerating compartment 120, a freezing compartment 130, a greenhouse, and the like. The number and function of the specific storage compartments can be configured according to prior requirements. In some embodiments, the storage temperature of the refrigerating compartment 120 may be 2 to 9 ° C, or may be 4 to 7 ° C; the storage temperature of the freezing compartment 130 may be -22 to -14 ° C, or may be -20 to 16 ° C . The freezing compartment 130 is disposed below the refrigerating compartment 120, and the variable greenhouse is disposed between the freezing compartment 130 and the refrigerating compartment 120. The temperature within the freezer compartment 130 typically ranges from -14 °C to -22 °C. The greenhouse can be adjusted to suit the needs of the food or as a storage room.

The refrigerator 100 may be a direct-cooling refrigerator or an air-cooled refrigerator, which may use a compression refrigeration cycle as a cooling source, and the refrigeration system may be a refrigeration cycle system composed of a compressor 140, a condenser 160, a throttle device, and an evaporator. . The evaporator is configured to provide cooling directly or indirectly to the storage compartment. For example, when the refrigerator 100 is a domestic compression type direct cooling refrigerator, the evaporator may be disposed outside or inside the rear wall surface of the inner liner of the refrigerator 100. When the refrigerator 100 is a domestic compression air-cooled refrigerator, the tank 110 further has an evaporator chamber therein, and the evaporator chamber communicates with the storage compartment through the air passage system, and an evaporator is arranged in the evaporator chamber, and a fan is arranged at the outlet. To cycle cooling to the storage compartment. Since the refrigeration system and the refrigeration principle of the refrigerator 100 are well known and readily realized by those skilled in the art, in order not to obscure and obscure the inventive aspects of the present application, the refrigeration system itself will not be described later.

The storage compartment may be closed by a door body for opening and closing the storage compartment. For example, the refrigerating compartment door body 150, the freezing compartment door body, and the greenhouse door may be provided in the refrigerating compartment 120, the freezing compartment 130, and the changing greenhouse, respectively. The door body can include a pivot type as well as a drawer type. The pivoting door body can be pivotally opened by being hinged on one side of the front portion of the casing 110.

The refrigerating compartment door body 150 generally includes a door body 150a, a door sill 150b located inside the door body 150a, and a foamed layer between the door body 150a and the door sill 150b.

Specifically, the door sill 150b is recessed from its inner side toward the door body 150a with an ice making chamber 153, and an ice making machine 200 is disposed in the ice making chamber 153.

In the refrigerator 100 of the present embodiment, the upper portion of the casing 110 is the refrigerating chamber 120, and the lower portion is the freezing chamber 130. The front side of the refrigerating compartment 120 has two refrigerating compartment door bodies 150, and the door sill 150b of one of the refrigerating compartment door bodies 150 is formed with an ice making chamber 153.

3 is a schematic structural view of a refrigerator 100 in which one refrigerating chamber door 150 is opened, and FIG. 4 is an enlarged view of a portion A in FIG. 1 according to an embodiment of the present invention.

In particular, the top of the casing 110 is provided with a receiving box 170 in which an ice making and cooling chamber 171 and a top air blowing chamber 172 are formed. An ice making evaporator 180 and a fan 190 for blowing a cold air flow around the ice making evaporator 180 are disposed in the ice making compartment 171. The top air supply chamber 172 is provided with a top air inlet duct 172a for receiving the cold airflow blown by the fan 190 and a top return air for guiding the airflow exchanged with the ice maker 200 to the ice making evaporator 180. Road 172b.

As shown in FIG. 1, FIG. 3 and FIG. 4, in order to facilitate the display of the structure inside the accommodating case 170, the accommodating case 170 shown in FIGS. 1 and 3 conceals the top plate of the accommodating case 170. In one embodiment of the present embodiment, the top air supply chamber 172 may be formed with a top air inlet duct 172a and a top return air duct 172b. It is also understood that the top air supply chamber 172 is formed with a top air supply. A partition extending from the front side to the rear side of the chamber 172 partitions the top air supply chamber 172 into a top air inlet duct 172a and a top return air duct 172b, and the partition plate is filled with a heat insulating material to feed the top portion into the air. The air duct 172a and the top return air duct 172b are insulated.

In the present embodiment, the top air supply chamber 172 is insulated from the external environment. Specifically, a position corresponding to the top air supply chamber 172 in the tank wall of the receiving box 170 is filled with a heat insulating material, such as a foaming agent, to thermally isolate the top air blowing chamber 172 from the external environment, avoiding the top air blowing chamber 172. Loss of cooling capacity.

In another embodiment of the present embodiment, the top air supply chamber 172 may be additionally provided with a top inlet air duct 172a and a top return air duct 172b, an inner air chamber 172 and a top air inlet duct 172a. The top return air duct 172b may be filled with an insulating material to insulate the top inlet air duct 172a and the top return air duct 172b, and the top inlet air duct 172a and the top return air duct 172b and the external environment. Insulation.

The door body side inlet air duct 151 and the door body side return air duct 152 are disposed in the refrigerator compartment door body 150, and the door body side inlet air duct 151 is configured to be closed with the top inlet air duct when the refrigerating compartment door body 150 is closed. The 172a is in communication to direct the cold air flow to the ice maker 200, and the door side return air duct 152 is configured to communicate with the top return air duct 172b when the refrigerating compartment door 150 is closed to be associated with the ice maker 200. The air flow after heat exchange is directed to the top return air duct 172b.

When the refrigerating compartment door body 150 is opened, the refrigerant conveying pipeline between the compressor 140 and the ice making evaporator 180 is controlled to be disconnected, and the fan 190 is controlled to stop working to stop the airflow to the top inlet air duct 172a, thereby effectively reducing the airflow. Loss of energy consumption.

In this embodiment, by providing the receiving box 170 at the top of the box 110, the ice making and cooling chamber 171 and the top air blowing chamber 172 are formed in the receiving box 170, so that the top of the originally vacant box 110 is fully utilized. The space for occupying the refrigerating chamber 120 by arranging the ice making evaporator 180 and the air passage is avoided, and the original structure of the refrigerating chamber 120 is not damaged, and the original structure and storage space of the refrigerating chamber 120 are maintained. At the same time, the ice making machine 200 is provided with a cooling capacity through the independent ice making evaporator 180, which improves the ice making efficiency of the ice making machine 200, and avoids the serious frosting problem caused by the evaporator shared with the refrigerating compartment and the freezing compartment, and The cooling timing of the ice making and cooling chamber 171 can be independently controlled without being affected by the cooling of the freezing compartment and the refrigerating compartment, thereby facilitating energy saving and consumption reduction. Moreover, due to the arrangement position and structural design of the inlet air duct and the return air duct, the path length of the air flow is greatly shortened, the air flow resistance is reduced, the air volume delivered to the ice machine is increased, and the air flow can be effectively Reduce the loss of cooling capacity.

The ice making chamber 153 is disposed with a heat insulating cover plate toward the end surface of the refrigerating chamber 120 to prevent the cold air flow of the ice making chamber 153 from affecting the temperature of the refrigerating chamber 120, and to keep the temperature of the refrigerating chamber 120 uniform.

As shown in FIG. 3, the ice making chamber 153 may be located in an area near the upper portion of the inner tank 150b, the ice making machine 200 may be located in an area near the upper portion of the ice making chamber 153, and the ice making chamber 153 is located in the lower portion of the ice making machine 200. The area forms an ice storage area, and the ice formed in the ice maker 200 is turned down by the ice maker 200 and dropped into the ice storage area for storage.

As shown in FIG. 2, a distributor 154 is disposed under the ice making chamber 153 in the inner tank 150b. The distributor 154 communicates with the ice storage area through the connecting pipe, and the ice in the ice storage area enters the distributor 154 through the connecting pipe. In the middle, the ice cubes produced by the ice maker 200 are discharged. To facilitate ice removal by the user, a cavity 155 that communicates with the dispenser 154 is formed on the outside of the door body 150a. The cavity 155 is in communication with the dispenser 154, and the user receives the falling ice cubes dispensed by the dispenser 154 directly at the cavity 155. An auxiliary door may be disposed on the front side of the cavity 155 to close the cavity. When the user takes the ice block, the auxiliary door is opened to take the ice, and after the ice is taken, the auxiliary door is closed to keep the cavity 155 clean and increase. The overall aesthetics of the refrigerator 100.

In the present embodiment, the ice making evaporator 180 may be a coil type evaporator, and the ice making evaporator 180 is vertically disposed in the ice making and cooling chamber 171. The fan 190 may be an axial fan. The refrigerant in the ice making evaporator 180 absorbs heat around the ice making evaporator 180, so that a cold air flow is formed in the ice making and cooling chamber 171, and the cold air is blown through the fan 190 to the top air inlet duct. 172a, and through the flow of the door side inlet air duct 151 to the ice making chamber 153 for heat exchange with the water in the ice maker 200, the heat exchanged air flow passes through the door side return air duct 152 in turn. The top return air duct 172b is guided to the ice making evaporator 180, once again cooled by the refrigerant in the ice making evaporator 180, and continuously supplied to the ice making machine 200 for cooling.

In this embodiment, the throttle device of the refrigerator 100 may be multiple, and the compressor 140 and the condenser 160 in the refrigeration system of the refrigerator 100, one of the throttle devices and the ice-making evaporator 180 are sequentially connected through the refrigerant pipeline, and constitute Refrigerant circulation loop. Further, the compressor 140, the condenser 160, other throttling devices, and an evaporator that supplies cooling to the storage compartment of the refrigerator are sequentially connected to each other to constitute a refrigeration cycle system of the refrigerator itself.

Specifically, as shown in FIG. 4, a mechanical chamber 173 is formed in the accommodating case 170, and a compressor 140, a condenser 160, a throttling device connected to the ice making evaporator 180, and the like may be disposed in the machine room 173. Since the mechanical chamber 173 and the ice making and cooling chamber 171 are both located in the accommodating case 170, the pipeline connection between the compressor 140, the condenser 160, the ice making evaporator 180 and the throttling device is facilitated, and the piping arrangement is simplified. And convenient for the delivery of refrigerant. Moreover, the bottom space of the cabinet 110 is saved, whereby the space of the storage compartment can be increased, and the storage amount of the refrigerator 100 can be increased.

The mechanical chamber 173 is insulated from the ice making and cooling chamber 171, and is insulated from the top air supply chamber 172 to prevent heat dissipation of the compressor 140 in the mechanical chamber 173 and heat dissipation of the condenser 160 to the ice making and cooling chamber 171 and the top air supply chamber. The impact of 172. Specifically, a panel of the mechanical chamber 173 facing the ice making and cooling chamber 171 may include two plates, and the two plates are filled with a heat insulating material to form a foam layer between the two plates.

A heat dissipation zone should be formed on the wall of the tank corresponding to the machinery compartment 173 to facilitate heat dissipation of the compressor 140 and the condenser 160. Specifically, the accommodating case 170 is formed with a heat dissipation hole on the wall corresponding to the machine room 173 to increase heat dissipation of the compressor 140 and the condenser 160.

In the present embodiment, the top air supply chamber 172, the ice making and cooling chamber 171, and the machine room 173 may be sequentially distributed from front to back in the thickness direction of the casing 110. Therefore, the positions of the top air supply chamber 172, the ice making and cooling chamber 171, and the mechanical chamber 173 are reasonably distributed, and the heat insulation design of the top air supply chamber 172 and the ice making and cooling chamber 171 and the heat dissipation design of the mechanical chamber 173 are facilitated. The air circulation of the top air supply chamber 172 and the ice making chamber 153 is facilitated.

The ice making and cooling chamber 171 is insulated from the external environment. Specifically, the tank wall of the accommodating box 170 is filled with a heat insulating material, such as a foaming agent, to thermally isolate the ice making and cooling chamber 171 from the external environment to avoid the ice making and cooling chamber. Loss of cooling in 171.

In the description of the present embodiment, "front" refers to a direction in which the refrigerator 100 is closer to the refrigerating chamber door 150 in the thickness direction, and "rear" refers to a direction away from the refrigerating chamber door 150 in the thickness direction of the refrigerator 100.

In this embodiment, the top air supply chamber 172 is located at the front side of the ice making and cooling chamber 171, and the top air inlet duct 172a and the top return air duct 172b are sequentially arranged along the width direction of the box body 110, and the top air inlet duct 172a The top return air duct 172b extends from the rear side of the receiving box 170 to the side of the receiving box 170 facing the refrigerating chamber door body 150. It can also be understood that the top inlet air duct 172a and the top return air duct 172b are arranged side by side in the width direction of the casing 110, and the top inlet air duct 172a extends from the rear to the front to the front side of the accommodation box 170, the top The return air duct 172b extends from the rear to the front to the front side of the accommodation box 170. Thereby, the lengths of the top inlet air duct 172a and the top return air duct 172b are greatly shortened, the arrangement of the air duct is simplified, the path length of the air flow is greatly shortened, the air flow resistance is reduced, and the cooling loss is reduced.

Referring to FIG. 4, a receiving box 170 facing the refrigerating chamber door body 150 is formed with a receiving box outlet 172-1 communicating with the top inlet air duct 172a and a receiving box inlet 172 communicating with the top return air duct 172b. -2. The accommodating case outlet 172-1 and the accommodating case inlet 172-2 may be spaced apart in the lateral direction of the accommodating case 170. The lateral direction of the housing box 170 is parallel to the width direction of the housing 110.

The door body 150a is formed with a door body side inlet 150a-1 at a position opposite to the housing box outlet 172-1, and the door body side inlet 150a-1 and the receiving box are closed when the refrigerating chamber door body 150 is closed. The outlet 172-1 is butted to communicate the door side inlet air duct 151 with the top inlet duct 172a.

The door body 150a is formed with a door body side outlet 150a-2 at a position opposite to the housing box inlet 172-2, and the door body side outlet 150a-2 and the receiving box are closed when the refrigerating chamber door body 150 is closed. The inlet 172-2 is docked to communicate the door side return air duct 152 with the top return air duct 172b.

For the embodiment in which the top inlet duct 172a and the top return duct 172b are formed in the top blower chamber 172, the pod exit 172-1 is the exit end of the top inlet duct 172a. An embodiment in which the top inlet air duct 172a and the top return air duct 172b are additionally provided for the top air supply chamber 172, the outlet end of the top air inlet duct 172a should extend into the receiving box outlet 172-1 or with the receiving box The outlet 172-1 is connected.

For the embodiment in which the top inlet air duct 172a and the top return air duct 172b are formed in the top air supply chamber 172, the receiving box inlet 172-2 is the leading end of the top return air duct 172b. An embodiment in which the top inlet air duct 172a and the top return air duct 172b are additionally provided for the top air supply duct 172, the leading end of the top return air duct 172b should extend into the receiving box inlet 172-2 or with the receiving box Import 172-2 is connected.

The top inlet air duct 172a may be a straight section extending from the rear side of the receiving box 170 to the side of the receiving box 170 facing the refrigerating chamber door 150. It can also be understood that the top inlet duct 172a is sent at the top. The inside of the air chamber 172 extends straight from the rear to the front to the receiving box outlet 172-1. The top return air duct 172b can be a straight section extending from the rear side of the receiving box 170 to the side of the receiving box 170 facing the refrigerating chamber door 150. It can also be understood that the top return air duct 172b is sent at the top. The inside of the air chamber 172 extends straight from the rear to the front to the receiving box inlet 172-2.

The entry end of the door side inlet air duct 151 passes through the door side inlet 150a-1 to communicate with the top inlet duct 172a when the refrigerating compartment door 150 is closed, and the outlet end of the door side return duct 152 is worn. The door side outlet 150a-2 is passed to communicate with the top return air duct 172a when the refrigerating compartment door 150 is closed.

The accommodating case outlet 172-1 is adapted to the door body side inlet 150a-1, and the accommodating case inlet 172-2 is fitted to the door body side outlet 150a-2. The outer circumference of the door side inlet 150a-1 or the outer circumference of the receiving box outlet 172-1 may be provided with a first elastic sealing ring 150c-1 for sealing the door side side inlet duct 151 and the top when the refrigerating compartment door 150 is closed. At the junction of the inlet duct 172a, cold air loss is avoided.

The outer circumference of the door side outlet 150a-2 or the outer circumference of the receiving box inlet 172-2 may be provided with a second elastic sealing ring 150c-2 for sealing the door side return air duct 152 and the top when the refrigerating chamber door 150 is closed. At the junction of the inlet air duct 172a, the cold air is prevented from leaking out.

Referring to FIGS. 1 to 4, the ice making chamber 153 may be located near the upper portion of the door sill 150b, and the ice making machine 200 is located in the upper space in the ice making chamber 153, whereby the position of the ice making machine 200 is known. Lower than the position of the top of the cabinet 110.

In one of the embodiments of the present embodiment, the ice making chamber 153 may be recessed from the inner side of the door 150b toward the door body 150a, and the ice making chamber 153 is a cavity formed on the door 150b. In order to introduce the cold amount into the ice making chamber 153, the exit end of the door side inlet air duct 151 is passed through the ice making chamber 153 to deliver the cold air flow into the ice making chamber 153. The leading end of the door side return air duct 152 is passed through the ice making chamber 153 to convey the airflow after exchange with the ice maker 200 to the tank side return air duct 172b.

In another embodiment of the embodiment, the door 150b is formed with an opening toward one side of the door body 150a, and the ice making chamber 153 is recessed into the foamed layer through the opening. It is also understood that the ice making chamber 153 extends from the door rib 150b into the foam layer, a portion of the space of the ice making chamber 153 is located in the door sill 150b, and a portion is located in the foam layer.

In this embodiment, referring to FIG. 4, the door side inlet air duct 151 is disposed in the foam layer, and includes a first air inlet straight section 151a, an air inlet section, and a second inlet which are sequentially connected in the refrigerant flow direction. Wind straight section 151b.

The first inlet straight section 151a is advanced through the door side inlet 150a-1 to be connected and communicated with the top inlet duct 172a when the refrigerating compartment door 150 is closed, and the first inlet straight section 151a is advanced therefrom The end extends toward the front side of the door body 150a. It is also understood that the first intake straight section 151a is provided at a position opposite to the top inlet duct 172a in the foam layer, and extends from the inner side to the outer side of the refrigerating compartment door body 150. The inner side (or the rear side) of the refrigerating compartment door body 150 refers to the side facing the cabinet 110, and the outer side (or the front side) of the refrigerating compartment door body 150 refers to the side away from the cabinet 110. The first inlet straight section 151a may be disposed substantially parallel to the horizontal plane to further shorten the length of the first inlet straight section 151a.

When the refrigerating compartment door 150 is closed, the first inlet straight section 151a communicates with the top inlet duct 172a to sequentially pass the cold airflow through the top inlet duct 172a, the first inlet straight section 151a, the intake section and The second intake straight section 151b is delivered to the ice maker 200.

The inlet end of the inlet section is connected and communicated with the outlet end of the first inlet straight section 151a, and the outlet end of the inlet section extends downwardly to transition to the second inlet straight section 151b. The leading end of the second inlet straight section 151b is connected to the outlet end of the inlet section, and the outlet end of the second inlet straight section 151b extends downward to the ice maker 200. It can also be understood that the outlet end of the second inlet straight section 151b extends downward into the ice making chamber 153, the ice maker 200 is located in the ice making chamber 153 near the upper portion, and the second inlet straight section 151b will The cold air flow is directed to the ice maker 200. The first intake straight section 151a transitions through the intake section to the second inlet straight section 151b to guide the cold airflow to the ice maker 200.

The second inlet straight section 151b may extend vertically downward to further shorten the length of the second inlet straight section 151b.

Corresponding to the top inlet air duct 172a and the top return air duct 172b, the door side inlet air duct 151 and the door side return air duct 152 are spaced apart in the width direction of the refrigerating chamber door.

Specifically, the door side return air duct 152 is disposed in the foam layer, and includes a first return air straight section 152a, a return air curved section, and a second return air straight line which are sequentially connected in a direction opposite to the flow direction of the refrigerant. Segment 152b.

The outlet end of the first return air straight section 152a passes through the door body side outlet 150a-2 to communicate with the top return air 172b when the refrigerating compartment door body 150 is closed, and the first return air straight section 152a is directed from the outlet end thereof The front body direction of the door body 150a extends. It can also be understood that the first return air straight section 152a is disposed at a position opposite to the top return air duct 172b in the foam layer, and extends from the inner side to the outer side of the refrigerating chamber door body 150. The first return air straight section 152a may be disposed in parallel with the horizontal plane to shorten the length of the first return air straight section 152a.

When the refrigerating compartment door body 150 is closed, the first return air straight section 152a is connected to the top return air duct 172b to sequentially pass the airflow after the heat exchange with the ice maker 200 through the second return air straight section 152b and the first return air. The straight section 152a and the top return air duct 172b are delivered to the ice making evaporator 180.

The exit end of the return air section is connected and communicated with the forward end of the first return air straight section 152a, and the forward end of the return air curved section is bent downward to transition to the second return air straight section 152b.

The exit end of the second return air straight section 152b is connected and communicated with the forward end of the return air curved section, and the leading end of the second return air straight section 152b extends downward to the ice maker 200. It can also be understood that the front end of the second return air straight section 151b extends downward into the ice making chamber 153, the ice making machine 200 is located in the ice making chamber 153 near the upper portion, and the second return air straight section 151b will The cold air flow is directed to the ice maker 200.

The second return air straight section 152b may extend vertically downward to further shorten the length of the second return air straight section 152b.

In the refrigerator 100 of the embodiment, a receiving box 170 is disposed at the top of the box 110, and an ice making and cooling chamber 171 and a top air blowing chamber 172 are formed in the receiving box 170, and the top of the box 110 is fully utilized. The space does not have to occupy the space of the refrigerating compartment for arranging the ice making evaporator 180 and the air duct, and does not need to change the structure of the refrigerating compartment, has less influence on the structure of the refrigerator 100 itself, and can provide sufficient cooling capacity for the ice making machine 200, thereby improving The ice making efficiency of the ice maker 200.

Further, in the refrigerator 100 of the present embodiment, a specially designed top inlet air duct 172a, a door side inlet air duct 151, and a specially designed top return air duct 172b and a door side return air duct 152 are used. The length of the top inlet air duct 172a and the length of the door side inlet air duct 151 are shortened, and the lengths of the top return air duct 172b and the door side return air duct 152 are shortened, which simplifies the arrangement of the air duct. The path length of the air flow is shortened, the air flow resistance is reduced, the air volume delivered to the ice maker 200 is increased, and the loss of the cooling capacity is effectively reduced.

Further, in the refrigerator 100 of the embodiment, a mechanical chamber 173 is further formed in the accommodating tank 170, and the compressor 140 and the condenser 160 are both disposed in the mechanical chamber 173, facilitating the compressor 140, the condenser 160, and the system. The piping connection between the ice evaporators 180 simplifies the piping arrangement and facilitates the delivery of refrigerant.

In this regard, it will be appreciated by those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Therefore, the scope of the invention should be understood and construed as covering all such other modifications or modifications.

Claims

A refrigerator comprising:

a refrigerator having a front side open refrigerator compartment, a top of the cabinet is provided with a receiving box, and an ice making and cooling chamber is formed in the receiving box, and the ice making and cooling chamber is arranged An ice making evaporator and a fan for blowing a cold air flow around the ice making evaporator;

a refrigerator compartment door connected to a front side of the refrigerating compartment to close the refrigerating compartment, the refrigerating compartment door body including a door body, a door rim located inside the door body, and the door body and the a foaming layer between the door ribs, wherein the door sill is recessed from an inner side thereof toward the door body with an ice making chamber, and an ice making machine is disposed in the ice making chamber;

Forming a top air supply chamber in the accommodating box, the top air supply chamber is formed or provided with a top air inlet duct for receiving the cold airflow blown by the fan and for replacing the ice machine with the ice machine The hot air flow is directed to the top return air duct at the ice making evaporator;

a door side inlet air duct disposed in the refrigerating chamber door, configured to be connected and communicated with the top inlet duct when the refrigerating chamber door is closed to guide the cold airflow to the Describe the ice machine;

a door side return air duct disposed in the refrigerator compartment door, configured to be connected and communicated with the top return air duct when the refrigerator compartment door is closed to exchange heat with the ice maker The subsequent airflow is directed to the top return air duct.
The refrigerator according to claim 1, wherein

The top air supply chamber is located at a front side of the ice making and cooling chamber;

The top inlet air duct and the top return air duct are sequentially arranged along a width direction of the box, and the top inlet air duct and the top return air duct are both by the receiving box The rear side extends to a side of the receiving box facing the door of the refrigerating compartment.
The refrigerator according to claim 2, wherein

The receiving box is formed with a receiving box outlet communicating with the top inlet air duct and a receiving box inlet communicating with the top return air duct, respectively, toward a side of the refrigerating chamber door body;

a door body side inlet is formed at a position of the door body facing the box body opposite to the housing box outlet, and the door body side inlet and the receiving box are closed when the refrigerator compartment door body is closed An outlet docking to connect the door side inlet air duct with the top inlet air duct;

a door body side outlet is formed at a position of the door body facing the housing opposite to the housing box inlet, and the door body side outlet and the receiving box are closed when the refrigerator compartment door body is closed The inlet is docked to connect the door side return air duct with the top return air duct.
A refrigerator according to claim 3, wherein

An opening is formed on a side of the door body toward the door body, and the ice making chamber is recessed into the foam layer through the opening;

The door body side inlet air duct is disposed in the foam layer, and includes a first air inlet straight section, an air inlet curved section and a second air inlet straight section which are sequentially connected in a refrigerant flow direction;

The leading end of the first inlet straight section passes through the door body side inlet to communicate with the top inlet air duct when the refrigerating compartment door body is closed, and the first inlet straight section Extending from the front end thereof toward the front side of the door body;

The inlet end of the air inlet segment is connected to and communicates with the outlet end of the first air inlet straight segment, and the outlet end of the air inlet segment extends downwardly to transition to the second air inlet straight segment ;

The inlet end of the second inlet straight section is connected to the outlet end of the inlet section, and the outlet end of the second inlet section extends downward to the ice maker to guide the cold airflow Lead to the ice machine.
A refrigerator according to claim 4, wherein

The door body side return air duct is disposed in the foam layer, and includes a first return air straight section, a return air curved section and a second return air straight section which are sequentially connected in a direction opposite to a flow direction of the refrigerant. ;

An exit end of the first return air straight section passes through the door body side outlet to communicate with the top return air duct when the refrigerating compartment door body is closed, and the first return air straight section is The outlet end thereof extends toward the front side of the door body;

An exit end of the return air segment is connected to and communicates with an advanced end of the first return air straight section, and an advanced end of the return air curved section is bent downward to transition to the second return air straight section ;

An exit end of the second return air straight section is connected to and communicates with an incoming end of the return air curved section, and an advanced end of the second return air straight section extends downward to the ice maker.
The refrigerator according to claim 3, further comprising:

a first elastic sealing ring disposed at an outer circumference of the door body side inlet or an outer circumference of the receiving box outlet to seal the door body side inlet air duct and the The junction of the top inlet air duct;

a second elastic sealing ring disposed at an outer circumference of the door body side outlet or an outer circumference of the receiving box inlet to seal the door body side return air duct and the The junction of the top return air duct.
The refrigerator according to claim 1, wherein

The ice making and cooling chamber is insulated from the external environment, and the top air blowing chamber is insulated from the external environment;

The top inlet air duct is insulated from the top return air duct.
The refrigerator according to claim 1, wherein

The ice making evaporator is a coil type evaporator, and the ice making evaporator is vertically arranged in the ice making and cooling chamber;

The fan is an axial fan.
The refrigerator of claim 1, further comprising:

a compressor and a condenser, the compressor, the condenser and the ice making evaporator are sequentially connected by a refrigerant pipeline, and constitute a refrigerant circulation loop;

a mechanical chamber is further formed in the accommodating box, wherein the compressor and the condenser are arranged in the mechanical chamber, and the mechanical chamber is insulated from the ice making and cooling chamber, and is sent to the top The wind chamber is insulated.
A refrigerator according to claim 9, wherein

The top air supply chamber, the ice making and cooling chamber, and the machine room are sequentially distributed from front to back along the thickness direction of the box.