WO2019120104A1

WO2019120104A1 - Refrigerator

Info

Publication number: WO2019120104A1
Application number: PCT/CN2018/120332
Authority: WO
Inventors: 黄凯; 王宁; 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: CN108286855A

Abstract

A refrigerator, comprising a refrigerator body (110), a door body (150a), a door liner (150b), and a refrigerating chamber door (150). A containing box (170) having an ice making and cooling chamber (171) is provided at the top of the refrigerator body (110); an ice making evaporator (180) and a fan (190) are provided in the ice making and cooling chamber (171); a top air supply chamber (172) is provided in the containing box (170); the top air supply chamber (172) is provided with a top air inlet chamber (172a) and a top air return chamber (172b); a top air outlet (172-1) and a top air return port (172-2) penetrating through the top of the refrigerator body (110) are separately provided at the bottom of the top air inlet chamber (172a); the upper part of the door liner (110) is provided with an ice making chamber air inlet (150b-1) and an ice making chamber air return port (150b-2) communicated with the ice making chamber (153). When the refrigerating chamber door (150) is closed, the ice making chamber air inlet (150b-1) is communicated with the top air outlet (172-1); the ice making chamber air return port (150b-2) is communicated with the top air return port (172-2). Thus, the amount of cooling air supplied to an ice maker (101) is increased and the ice making efficiency of the ice maker is improved.

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.

According to an aspect of the invention, 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 for blowing a cold air flow around the ice making evaporator, and the ice making evaporator is provided with a heating member for heating and defrosting 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 further formed in the accommodating box, and the top air supply chamber is formed with a top air inlet chamber for receiving the cold airflow blown by the fan and for guiding the airflow after heat exchange with the ice machine to the ice making evaporator At the top of the return air chamber; and

The bottom of the top inlet chamber is formed with a top air outlet extending through the top of the tank;

The bottom of the top return air chamber is formed with a top return air outlet penetrating the top of the tank;

The upper part of the door bristles and the top air outlet are formed with an air inlet of the ice making chamber penetrating the ice making chamber, and the upper part of the door bristles and the top air returning port are formed with an ice making room that passes through the ice making chamber. tuyere;

When the door of the refrigerating compartment is closed, the air inlet of the ice making compartment is connected with the top air outlet, and the air returning mouth of the ice making compartment is connected with the top return air outlet.

Optionally, the refrigerator further includes:

The electric damper is disposed in the top air inlet chamber, and the electric damper is configured to controlly close the top air inlet chamber when the heating component heats the ice making evaporator to prevent the hot air flow around the ice making evaporator from entering the top The wind chamber enters the ice making chamber.

Optionally, the top air supply chamber is formed with a partition extending from a front side to a rear side of the top air supply chamber to partition the top air supply chamber into a top air inlet chamber and a top air return chamber;

The top inlet chamber and the top return chamber are arranged in sequence along the width direction of the tank.

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

The top air outlet and the top air return port are arranged in the order of the width direction of the box body;

The air inlet of the ice making compartment and the return air outlet of the ice making compartment are arranged in the order of the width direction of the door biliary.

Optionally, the partition is filled with a heat insulating material to insulate the top air inlet chamber from the top air return chamber;

The area corresponding to the side wall of the accommodating box and the area corresponding to the top air supply chamber and the area corresponding to the ice making and cooling chamber are filled with the heat insulating material to insulate the top air supply chamber, the ice making and cooling chamber from the external environment.

Optionally, a fan mounting bracket is formed between the top air inlet chamber and the ice making and cooling chamber for installing the fan;

The fan mount is formed with an air outlet that communicates with the top air inlet chamber to introduce a cold air flow into the top air inlet chamber.

Optionally, the refrigerator further includes:

a first elastic sealing ring disposed at an outer circumference of the top air outlet or an outer circumference of the air inlet of the ice making chamber to seal a connection between the top air outlet and the air inlet of the ice making chamber when the refrigerator door body is closed;

The second elastic sealing ring is disposed on the outer circumference of the top air return opening or the outer circumference of the air returning chamber of the ice making chamber to seal the connection between the top return air outlet and the air returning chamber return air outlet when the refrigerating chamber door body is closed.

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 of the refrigerator compartment is occupied by the air conditioner and the air duct, and the structure of the refrigerator compartment is not changed, and the structure of the refrigerator itself is less affected. In addition, by forming a top air outlet and a top air return port at the bottom of the top air inlet chamber, an air inlet of the ice making chamber and a return air outlet of the ice making chamber are formed at corresponding positions on the upper portion of the door biliary, thereby avoiding the arrangement of the air duct in the door of the refrigerating chamber The complexity greatly shortens the stroke of cooling capacity, reduces the airflow resistance and the loss of cooling capacity, thereby greatly improving the air supply volume and the ice making capacity and ice making efficiency of the ice machine. Furthermore, by providing a heating component on the ice making evaporator, the ice making evaporator can be heated and defrosted periodically to prevent the ice making evaporator from affecting the heat transfer performance of the ice making evaporator after a period of operation. .

Further, in the refrigerator of the present invention, by providing an electric damper in the top air inlet chamber, when the heating member heats the ice making evaporator, the electric damper is controlled to close the top air inlet chamber to avoid the ice making evaporator. The surrounding hot air flows through the top air inlet chamber into the ice making chamber, thereby avoiding the problem that some ice in the ice making chamber melts and causes the ice block to be detached from the ice machine.

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 refrigerant conveying pipe between the compressor, the condenser and the ice making evaporator. The road connection simplifies the arrangement of the refrigerant conveying pipeline and facilitates the transportation of the refrigerant. Moreover, the top air supply room, the ice making and cooling room and the mechanical room are distributed in the thickness direction of the box from front to back, and the positions of the top air supply room, the ice making and cooling room and the mechanical room are reasonably distributed, which is convenient for the top sending. The heat insulation design of the air chamber and the ice making and cooling chamber and the heat dissipation design of the mechanical chamber, and the air circulation of the top air supply chamber and the ice making chamber are facilitated.

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;

Figure 3 is a partial structural view of a refrigerator in accordance with one embodiment of the present invention;

4 is a schematic structural view of an ice making evaporator, a heating member, and a drain pipe of a refrigerator according to an embodiment of the present invention.

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 compressor 140, a condenser 160, a throttling device (not shown), and an evaporator (not A refrigeration cycle system consisting of the display). 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.

As shown in FIG. 1, the refrigerating compartment door body 150 generally includes a door body 150a, a door rib 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 101 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.

FIG. 3 is a partial structural view of a refrigerator 100 in accordance with one embodiment of the present invention.

Specifically, as shown in FIGS. 1 to 3, a housing 170 is disposed at the top of the housing 110, and an ice making and cooling chamber 171 and a top air blowing chamber 172 are formed in the housing box 170. 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 formed with a top air inlet chamber 172a for receiving the cold airflow blown by the fan 190 and a top air return chamber 172b for guiding the airflow after heat exchange with the ice maker 101 to the ice making evaporator 180. .

A bottom air outlet 172-1 is formed through the top of the top air inlet chamber 172a, and a top air outlet 172-2 is formed at the bottom of the top air return chamber 172b.

An upper portion of the door rib 150b is formed at a position corresponding to the top air outlet 172-1, and an ice making chamber air inlet 150b-1 penetrating the ice making chamber 153 is formed. The upper portion of the door rib 150b is formed at a position corresponding to the top air return port 172-2. There is an ice making chamber return air port 150b-2 that penetrates the ice making chamber 153. When the refrigerator compartment door 150 is closed, the ice compartment air inlet 150b-1 is in communication with the top air outlet 172-1, and the ice compartment air outlet 150b-2 is connected to the top air return 172-2 to communicate with each other. An air inlet duct 102 is formed between the ice chamber air inlet 150b-1 and the top air outlet 172-1, and a return air duct is formed between the ice chamber return air inlet 150b-2 and the top air return port 172-2. This simplifies the arrangement of the air duct, avoids the complexity of arranging the air duct in the door of the refrigerating compartment, greatly shortens the path length of the air flow, reduces the airflow resistance, greatly improves the air supply volume, and can effectively reduce the cooling capacity. Loss and improve the efficiency of ice making.

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 chamber 172a, thereby effectively reducing the energy. Loss of power.

The outer periphery of the top air outlet 172-1 or the outer circumference of the ice making chamber 150b-1 is provided with a first elastic sealing ring 150c-1 to seal the top air outlet 172-1 and the ice making when the refrigerating chamber door 150 is closed. The junction of the chamber air inlet 150b-1 avoids the loss of cold air. The outer circumference of the top return air outlet 172-2 or the outer circumference of the ice making chamber return air inlet 150b-2 is provided with a second elastic sealing ring 150c-2 to seal the top return air outlet 172-2 and the ice making compartment when the refrigerating compartment door body is closed At the junction of the return air port 150b-2, cold air loss is avoided.

The top air supply chamber 172 and the ice making and cooling chamber 171 may be sequentially distributed from front to back in the thickness direction of the casing 110. The top inlet plenum 172a and the top return plenum 172b are sequentially arranged in the width direction of the casing 110. Correspondingly, the top air outlet 172-1 and the top air return port 172-2 are sequentially arranged along the width direction of the box body 110, and the ice making chamber air inlet 150b-1 and the ice making chamber air return port 150b-2 are along the width direction of the door sill 150b. Arrange in order. By arranging the top air supply chamber 172 on the front side of the ice making and cooling chamber 171, the top air supply chamber 172 is close to the refrigerating chamber door body 150, facilitating the circulation of the airflow in the top air supply chamber 172 and the ice making chamber 153, which is convenient. The position design of the top air outlet 172-1 and the top air return port 172-2 and the position design of the ice making compartment air inlet 150b-1 and the ice making compartment air return port 150b-2.

The top air supply chamber 172 is formed with a partition plate 172c extending from the front side to the rear side of the top air supply chamber 172 to partition the top air supply chamber 172 into a top air inlet chamber 172a and a top air return chamber 172b. The partition 172c is filled with a heat insulating material to insulate the top air inlet chamber 172a and the top return air chamber 172b.

A fan mounting bracket 174 is formed between the top air inlet chamber 172a and the ice making and cooling chamber 173. The fan 190 is mounted on the fan mounting bracket 174, and the fan mounting bracket 174 is formed with an air outlet communicating with the top air inlet chamber 172a. The cold air flow is introduced into the top air inlet chamber 172a.

The top return air chamber 172b penetrates with the ice making and cooling chamber 173. As shown in FIG. 3, the top return air chamber 172b extends directly in the thickness direction of the housing 110 to the ice making and cooling chamber 171 to divert the return air to The ice making room is 171.

In the present embodiment, the top air supply chamber 172 is insulated from the external environment. Specifically, a region corresponding to the top air supply chamber 172 and a region corresponding to the ice making and cooling chamber 171 in the side wall of the accommodating case 170 are filled with a heat insulating material such as a foaming agent to pass the top air blowing chamber 172, The ice making compartment 171 is thermally isolated from the external environment.

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 due to the arrangement of 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 101 is provided with a cooling amount through the independent ice making evaporator 180, the ice making efficiency of the ice making machine 101 is improved, and the serious frosting problem caused by the evaporator shared with the refrigerating room and the freezing room is avoided, 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.

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 101 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 101. The area forms an ice storage area, and the ice formed in the ice maker 101 is turned down by the ice maker 101 and dropped into the ice storage area for storage.

A distributor 154 is disposed below the ice making chamber 153 in the inner tank 150b. The distributor 154 communicates with the ice storage area through a connecting pipe, and the ice in the ice storage area enters the distributor 154 through the connecting pipe to make ice. The ice produced by the machine 101 is 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. Fan 190 can be an axial fan. When the refrigerating compartment door 150 is closed, the ice making compartment air inlet 150b-1 is in communication with the top air outlet 172-1, and the ice making compartment return air inlet 150b-2 is connected to the top return air outlet 172-2 to connect the ice. The low temperature refrigerant in the evaporator 180 absorbs the 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 current is blown to the top air inlet chamber 172a via the fan 190, and sequentially passes through the top air outlet 172- 1 and the ice chamber air inlet 150b-1 flows into the ice making chamber 153 to exchange heat with the water in the ice making machine 101, and the air flow after the heat exchange passes through the ice chamber return air inlet 150b-2 and the top air return port in turn. The 172-2 flows into the top return air chamber 172b, and flows to the ice making evaporator 180 in the ice making and cooling chamber 173 via the top return air chamber 172b, and is once again cooled by the refrigerant in the ice making evaporator 180 to form The airflow circulates to continue cooling the ice maker 101.

4 is a schematic structural view of an ice making evaporator 180, a heating member 181, and a drain pipe 182 of the refrigerator 100 according to an embodiment of the present invention.

As shown in FIG. 4, the ice making evaporator 180 is further provided with a heating member 181. The heating unit periodically heats and defrosses the ice making evaporator 180. Specifically, the heating member 181 may be a heating wire or a heating sheet, and the heating member 181 may be disposed at a lower portion of the ice making evaporator 180 and extended upward from one side of the ice making evaporator 180. The heating member 181 can also be coiled on the surface of the ice making evaporator 180 to increase the contact area with the ice making evaporator 180 and accelerate the defrosting of the ice making evaporator 180. This prevents the ice making evaporator 180 from affecting the heat exchange performance of the ice making evaporator 180 due to frost formation after a period of use.

A drain hole is formed in a bottom portion of the ice making and cooling chamber 171, and a drain pipe 182 communicating with the drain hole is disposed in the foam layer of the tank 110, and the drain pipe 182 extends from a position communicating with the drain hole to a bottom portion of the tank 110. In the water tray, the defrosting water of the ice making evaporator 180 flows through the drain pipe 182 to the water receiving tray.

An electric damper 175 is disposed in the top air inlet chamber 172a, and the electric damper 175 is configured to controlly close the top air inlet chamber 172a when the heating member 181 heats and defrosses the ice making evaporator 180 to avoid surrounding the ice making evaporator 180 The hot airflow enters the ice making chamber 153 through the top air inlet chamber 172a, thereby preventing the ice cubes in the ice maker 101 from melting and sticking, making it difficult for the ice cubes to be detached from the ice maker 101, and avoiding the lower portion of the ice maker 101. Some of the ice in the ice storage zone melts and sticks, making it difficult for ice in the ice storage area to fall into the dispenser 154.

During the ice making process, the electric damper 175 is always open to ensure that cold air flows into the ice making chamber 153 through the top air inlet chamber 172a.

The electric damper 175 can generally include a damper body and a motor having an output shaft. The output shaft of the motor may be parallel to the bottom of the top air inlet chamber 172a. When the heating component 181 heats and defrosses the ice making evaporator 180, the motor is controlled to operate, and the damper body is driven by the motor to rotate around the output shaft of the motor to be substantially vertical. The state is to close the top inlet plenum 172a to prevent hot gas flow from flowing into the ice making chamber 153 from the top inlet plenum 172a. During the ice making process, the damper body is rotated by the motor to rotate the output shaft of the motor to a substantially horizontal state to open the top air inlet chamber 172a, and the cold air flow is sent to the ice making chamber 153 via the top air inlet chamber 172a.

The height of the damper body is substantially the same as the height of the top inlet plenum 172a, and the width of the damper body is substantially the same as the width of the top inlet plenum 172a to ensure that the damper body can completely close the top inlet plenum 172a.

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 constitute a refrigeration cycle system of the refrigerator itself.

In particular, a mechanical chamber 173 is further 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 mechanical chamber 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 machine room 173 facing the ice making and cooling chamber 171 includes 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. Thereby, the positions of the top air supply chamber 172, the ice making and cooling chamber 171, and the machine room 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. At the same time, the air circulation of the top air supply chamber 172 and the ice making chamber 171 is facilitated.

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 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 it is not necessary to change the structure of the refrigerating compartment, and the structure of the refrigerator 100 itself is less affected. Further, by forming a top air outlet 172-1 and a top air return port 172-2 at the bottom of the top air inlet chamber 172a, an ice making chamber air inlet 150b-1 and an ice making chamber air inlet 150b are formed at corresponding positions on the upper portion of the door liner. -2, avoiding the complexity of setting the air duct in the refrigerator door body 150, greatly shortening the stroke of the cooling capacity delivery, reducing the airflow resistance and the loss of the cooling capacity, thereby greatly improving the air supply volume and the ice making machine. The amount of ice produced by 101 and the efficiency of ice making. Furthermore, by providing the heating member 181 on the ice making evaporator 180, the ice making evaporator 180 can be heated and defrosted periodically to prevent the ice making evaporator 180 from affecting the ice making evaporator due to frosting after working for a period of time. Heat exchange performance of 180.

Further, in the refrigerator 100 of the present embodiment, by providing the electric damper 175 in the top air inlet chamber 172a, when the heating member 181 heats the ice making evaporator 180, the electric damper 175 is controlled to close the top air inlet chamber. 172a, to prevent the hot air flow around the ice making evaporator 180 from entering the ice making chamber 153 through the top air inlet chamber 172a, thereby preventing some ice in the ice making chamber 153 from melting and causing adhesion, which makes the ice block difficult to make from ice making. The problem of detachment in machine 101.

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. Further, the top air blowing chamber 172, the ice making and cooling chamber 171, and the machine room 173 are sequentially distributed from the front to the rear in the thickness direction of the casing 110, and the top air blowing chamber 172, the ice making and cooling chamber 171, and the machine room are reasonably distributed. The position of 173 facilitates the thermal 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 while facilitating circulation of airflow between the top air supply chamber 172 and the ice making chamber 153.

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, wherein the ice making evaporator is provided with a heating member for heating and defrosting 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 receiving box, the top air supply chamber is formed with a top air inlet chamber for receiving the cold air flow blown by the fan and for heat exchange with the ice machine Airflow is directed to a top return air chamber at the ice making evaporator;

The bottom of the top air inlet chamber is formed with a top air outlet extending through the top of the box;

The bottom of the top return air chamber is formed with a top air return opening penetrating the top of the box body;

An upper portion of the door bristles and a top air outlet are formed with an air inlet of an ice making chamber that penetrates the ice making chamber, and an upper portion of the door bristles is formed at a position corresponding to the top air return opening. a return air outlet of the ice making chamber through which the ice making chamber passes;

When the refrigerating chamber door is closed, the air inlet of the ice making chamber is in communication with the top air outlet, and the air return port of the ice making chamber is in communication with the top air return port.
The refrigerator of claim 1, further comprising:

An electric damper disposed in the top air inlet chamber, the electric damper being configured to controlly close the top air inlet chamber when the heating member heats the ice making evaporator to avoid A flow of hot air around the ice evaporator enters the ice making chamber through the top inlet plenum.
The refrigerator according to claim 1, wherein

The top air supply chamber is formed with a partition extending from a front side to a rear side of the top air supply chamber to partition the top air supply chamber into the top air inlet chamber and the top air return chamber;

The top air inlet chamber and the top air return chamber are sequentially arranged along a width direction of the box.
A refrigerator according to claim 3, wherein

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

The top air outlet and the top air return are arranged in sequence along the width direction of the box;

The air inlet of the ice making chamber and the air return opening of the ice making chamber are sequentially arranged along the width direction of the door sill.
A refrigerator according to claim 3, wherein

The partition is filled with a heat insulating material to insulate the top air inlet chamber from the top air return chamber; a side wall of the receiving box corresponding to the top air supply chamber, and the The area corresponding to the ice making and cooling chamber is filled with a heat insulating material to insulate the top air supply chamber and the ice making and cooling chamber from the external environment.
A refrigerator according to claim 3, wherein

Forming a fan mounting frame between the top air inlet chamber and the ice making and cooling chamber for mounting the fan;

The fan mount is formed with an air outlet that communicates with the top air inlet chamber to introduce a cold air flow into the top air inlet chamber.
The refrigerator according to claim 3, further comprising:

a first elastic sealing ring disposed at an outer circumference of the top air outlet or an outer circumference of the air inlet of the ice making chamber to seal the top air outlet and the ice making chamber when the refrigerator door body is closed The junction of the tuyere;

a second elastic sealing ring disposed at an outer circumference of the top air return opening or an outer circumference of the air returning chamber of the ice making chamber to seal the top air return opening and the ice making room when the refrigerating chamber door body is closed The junction of the tuyere.
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 flow 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.