CN217686155U - Refrigerator with a door - Google Patents

Abstract

The utility model belongs to the technical field of the refrigerator refrigeration, a refrigerator is specifically provided. The utility model discloses aim at solving current refrigerator and have the problem of eating the material cluster flavor. Therefore, the utility model discloses a refrigerator is including the box of injecing the incasement compartment, injecing refrigerator door and the refrigerating system who has the door compartment, refrigerating system includes compressor, condenser, first throttle step-down component and the first evaporimeter of time end to end, establishes ties in proper order the export of condenser with door body throttle step-down component and door body evaporimeter, control valve between the import of compressor. The first evaporator is used for refrigerating the inner chamber of the refrigerator, the door body evaporator is mounted on the refrigerator door and used for refrigerating the inner chamber of the door, and the control valve is used for controlling the refrigerant flowing out of the condenser to flow to the first throttling depressurization member and/or the door body throttling depressurization member. The utility model overcomes there is the problem of eating the material cluster flavor in current refrigerator.

Description

Refrigerator

Technical Field

The utility model belongs to the technical field of the refrigerator refrigeration, a refrigerator is specifically provided.

Background

A refrigerator is a refrigerating apparatus capable of freezing and refrigerating food materials. Various types of existing frozen food materials include raw food materials such as chicken, duck, fish and shrimp, cooked food materials such as steamed bread, steamed rolls and steamed stuffed buns, and cold drink materials such as ice cream and ice cream. Raw foods are mostly stored for a long time, cooked foods are mostly stored for a short time, and cold drinks are mostly stored intermittently.

In life, the eating frequency of food materials stored for a short time is high, for example, pasta is eaten at every meal basically, and frequent opening of a freezing chamber door of a refrigerator can cause large temperature fluctuation in a freezing chamber, so that raw food materials such as chicken, ducks, fishes and shrimps are repeatedly thawed and frozen, and the quality of the raw food materials during long-time storage is influenced.

In order to overcome the above problems, some refrigerators have a refrigerator door (e.g., a freezing chamber door) as a door-in-door. Specifically, the refrigerator door includes a main door defining a door inner chamber and a vent for communicating the door inner chamber with the freezer compartment, and a sub door installed at an outer side of the main door and for closing the door inner chamber. Food materials (such as pasta) requiring a short time of freezing are placed in the door inner compartment, and food materials requiring a long time of freezing are placed in the freezing compartment. When the user need take out the frozen edible material of short time, only need open the vice door on the refrigerator door can to it is more to lead to freezing room to lose cold when having avoided opening whole refrigerator door, has guaranteed the quality when raw food material class stores for a long time.

However, there are still some problems with the current refrigerator having a door-in-door. For example, the food material is likely to be tainted by the intercommunication between the door inner chamber and the freezing chamber. Particularly, seafood, fish and other food materials with large fishy smell are usually stored in the freezing chamber, steamed wheaten foods such as steamed buns, steamed twisted rolls and steamed stuffed buns are usually placed in the door inner chamber, and the wheaten foods are particularly easy to absorb peculiar smell, so that the wheaten foods in the freezing chamber are easy to taint of smell, and the use experience of a user is influenced. In addition, the existing door inner chamber needs to be refrigerated by depending on the refrigerating capacity of the refrigerating chamber, so that the refrigerating efficiency of the refrigerating chamber is greatly influenced. Because the existing door inner chamber needs to be refrigerated by depending on the cold energy of the freezing chamber, the refrigeration efficiency of the door inner chamber is lower, and the temperature of the door inner chamber cannot be lower than that of the freezing chamber.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the problem that current refrigerator has edible material cluster flavor.

The utility model discloses a further an aim at is the independent door body evaporimeter of refrigerator door configuration to refrigerate fast to the door inner room through this independent door body evaporimeter.

In order to achieve the above object, the utility model provides a refrigerator, including the box of injecing the incasement compartment, injecing refrigerator door and the refrigerating system that has the door compartment, refrigerating system includes:

the first evaporator is used for refrigerating the inner chamber of the box;

the door body throttling and pressure reducing component and the door body evaporator are sequentially connected in series between the outlet of the condenser and the inlet of the compressor, and the door body evaporator is installed on the refrigerator door and used for refrigerating the inner chamber of the door;

and the control valve is used for controlling the refrigerant flowing out of the condenser to flow to the first throttling and pressure reducing component and/or the door body throttling and pressure reducing component.

Optionally, the refrigeration system further includes a second throttling and depressurizing component and a second evaporator connected in series between the outlet of the condenser and the inlet of the first evaporator in sequence, and the control valve is further configured to control whether the refrigerant flowing out of the condenser flows to the second throttling and depressurizing component.

Optionally, the refrigeration system further includes a third throttling and depressurizing component and a third evaporator connected in series between the outlet of the condenser and the inlet of the first evaporator in sequence, and the control valve is further configured to control whether the refrigerant flowing out of the condenser flows to the third throttling and depressurizing component.

Optionally, the first evaporator is a freezing evaporator, the second evaporator is a refrigerating evaporator, and the third evaporator is a variable temperature evaporator.

Optionally, the control valve includes an inlet fluidly connected to the outlet of the condenser, a first outlet fluidly connected to the inlet of the first pressure reducing throttling member, a second outlet fluidly connected to the inlet of the second pressure reducing throttling member, a third outlet fluidly connected to the inlet of the third pressure reducing throttling member, and a door outlet fluidly connected to the inlet of the door throttling pressure reducing throttling member.

Optionally, the refrigeration system further includes a door fan mounted on the refrigerator door, the door fan being configured to drive air in the door inner chamber to flow through the door evaporator; and/or, the refrigeration system further comprises a liquid storage pack connected in series between an outlet of the first evaporator and an inlet of the compressor.

Optionally, the door throttle depressurize member is a capillary tube installed on the refrigerator door.

Optionally, the refrigeration system further comprises a high-pressure connecting hose connected in series between the inlet of the door-throttling depressurization member and the condenser, wherein the high-pressure connecting hose comprises a part mounted on the refrigerator body and a part mounted on the refrigerator door; and/or the refrigerating system further comprises a low-pressure connecting hose connected between the outlet of the door body throttling and pressure reducing member and the compressor in series, wherein the low-pressure connecting hose comprises a part mounted on the refrigerator body and a part mounted on the refrigerator door.

Optionally, the refrigeration system further comprises a high-pressure pipeline connected in series between the high-pressure connecting hose and the condenser, and a heating device for heating the high-pressure pipeline.

Optionally, the refrigerator door includes a first door body mounted on the refrigerator body and a second door body mounted on the first door body, the door inner chamber is formed on the first door body, and the door body evaporator is also mounted on the first door body.

Optionally, the average cross-sectional area of the pipeline between the control valve and the throttle body pressure reducing member is 0.2 to 0.8 of the average cross-sectional area of the pipeline between the condenser and the control valve; the average cross-sectional area of the pipeline between the door evaporator and the inlet of the compressor is 0.2-0.8 of the average cross-sectional area of the pipeline between the liquid storage bag and the inlet of the compressor.

Optionally, an average cross-sectional area of a pipeline between the control valve and the gate body throttling and pressure reducing member is 0.2 to 0.5 of an average cross-sectional area of a pipeline between the condenser and the control valve; and/or the average cross-sectional area of the pipeline between the door body evaporator and the inlet of the compressor is 0.3 to 0.6 of the average cross-sectional area of the pipeline between the liquid storage bag and the inlet of the compressor.

Based on the foregoing description, it can be understood by those skilled in the art that in the foregoing technical solution of the present invention, the door inner chamber is defined by the refrigerator door, and an independent door body evaporator is configured for the door inner chamber, so that the door inner chamber can be refrigerated by the door body evaporator, and the problem that the food material in the door inner chamber and the food material in the door inner chamber are tainted with the smell when the door inner chamber is refrigerated by the refrigerator inner chamber (freezing chamber or cold storage chamber) is overcome. Meanwhile, the door body evaporator also improves the refrigeration efficiency of the door inner chamber, enables the door inner chamber to achieve lower temperature than the cabinet inner chamber, and improves the use experience of users.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solution of the present invention, some embodiments of the present invention will be described hereinafter with reference to the accompanying drawings. Those skilled in the art will appreciate that elements or portions of the same reference number identified in different figures are the same or similar; the drawings of the present invention are not necessarily to scale relative to each other. In the drawings:

fig. 1 is a schematic view of a refrigerator according to some embodiments of the present invention;

fig. 2 is an isometric view of a refrigerator door according to some embodiments of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view of the refrigerator door of FIG. 2 taken along the line A-A;

fig. 4 is an exploded view of a duct assembly and its mounting components according to some embodiments of the present invention;

fig. 5 is a rear isometric view of an air duct assembly and its upper mounting member according to some embodiments of the present invention;

fig. 6 is a front, upper isometric view of an air duct assembly and its upper mounting member in accordance with some embodiments of the present invention;

fig. 7 is a schematic view of the air flow in the interior of the door according to some embodiments of the present invention;

fig. 8 is a schematic diagram of a refrigeration system of a refrigerator according to some embodiments of the present invention;

fig. 9 is a schematic view of a refrigeration system of a refrigerator according to still another embodiment of the present invention;

fig. 10 is a schematic diagram of a refrigeration system of a refrigerator according to another embodiment of the present invention.

Detailed Description

It is to be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments of the present invention, and the part of the embodiments are intended to explain the technical principle of the present invention and not to limit the scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by a person skilled in the art without any inventive work should still fall within the scope of the present invention.

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

Further, it should be noted that, unless otherwise explicitly stated or limited in the description of the present invention, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, it should be noted that in the description of the present invention, the terms "cold" and "heat" are two descriptions of the same physical state. That is, the higher the "cold" a certain object (e.g., evaporator, air, condenser, etc.) has, the lower the "heat" it has, and the lower the "cold" it has, the higher the "heat" it has. A certain target object can release heat while absorbing cold, and can absorb heat while releasing cold. Some object stores "cold" or "heat" in order to keep the object at its current temperature. "refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon, i.e., a target (e.g., an evaporator) absorbs heat while refrigerating.

As shown in fig. 1, in some embodiments of the present invention, a refrigerator includes a cabinet 100 and a refrigerator door 200. In which a cabinet 100 defines a cabinet interior chamber 110, and a refrigerator door 200 closes the cabinet interior chamber 110. Further, the cabinet interior 110 includes a refrigerating compartment 111 and a freezing compartment 112.

Optionally, in some embodiments of the present invention, the refrigerating compartment 111 and the freezing compartment 112 are respectively configured with two refrigerator doors 200. Further, two refrigerator doors 200 corresponding to the refrigerating compartment 111 and the freezing compartment 112 are split. Alternatively, one skilled in the art may arrange only one refrigerator door 200 in the refrigerating compartment 111 and/or the freezing compartment 112 as needed. Alternatively, one skilled in the art may also arrange three or more refrigerator doors 200 in the refrigerating compartment 111 and/or the freezing compartment 112, as needed.

Further, in some embodiments of the present invention, the refrigerator door with which at least one of the refrigerating compartment 111 and the freezing compartment 112 is configured is a refrigerator door 200 with a door inner compartment 215 (shown in fig. 3) described later in the present invention.

If only one of the refrigerator doors of the refrigerating compartment 111 and the freezing compartment 112 is the refrigerator door 200 having the door inner compartment 215 (shown in fig. 3) described later in the present invention, the other of the refrigerator doors of the refrigerating compartment 111 and the freezing compartment 112 may be a conventional refrigerator door.

In addition, one skilled in the art may also configure only the refrigerating compartment 111 or the freezing compartment 112 for the box 100, and configure the refrigerator door 200 having a door inner compartment 215 (shown in fig. 3) described later in the present invention for the refrigerating compartment 111 or the freezing compartment 112, as needed.

As shown in fig. 1 to 3, in some embodiments of the present invention, the refrigerator door 200 includes a first door body 210 and a second door body 220. The first door body 210 is mounted on the cabinet 100, and preferably, the first door body 210 is pivotally mounted on the cabinet 100. The second door 220 is mounted on the first door 210, and preferably, the second door 220 is pivotally mounted on the first door 210.

In addition, a person skilled in the art may also mount the second door 220 on the first door 210 in any other feasible manner according to the needs. For example, the second door 220 is slidably attached to the first door 210.

As shown in fig. 3 to 5, the refrigerator door 200 is provided with a door fan 240 mounted on the first door 210, a defrosting device 250, a water receiving container 260, and a U-shaped cover 270. The door fan 240 is configured to drive air to flow through the door evaporator 230, so that the door evaporator 230 cools the air. The defrosting device 250 is used for heating the door body evaporator 230 to melt the frost on the door body evaporator 230. The water receiving container 260 is used for receiving the defrosting water falling from the door evaporator 230. The U-shaped cover 270 is used to assist the water container 260 to wrap the defrosting device 250, so that the heat generated by the defrosting device 250 is gathered at the lower side of the door evaporator 230, and the door evaporator 230 is heated, thereby preventing the heat generated by the defrosting device 250 from escaping to other places. In other words, the U-shaped cover 270 can improve the utilization of heat of the defrosting device 250.

As shown in fig. 4, the door fan 240 is preferably a centrifugal fan. Of course, the skilled person can also set the door fan 240 as another type of fan, such as an axial flow fan, as required. The defrosting device 250 is preferably an electric heating device, and one skilled in the art may omit the defrosting device 250 and use the door evaporator 230 as a condenser during defrosting, if necessary.

As shown in fig. 3, the first door 210 includes a housing 211, an inner container 212, an air duct assembly 213, and a foam layer 214. The outer shell 211, the inner container 212 and the air duct assembly 213 are sequentially arranged from outside to inside, and the foaming layer 214 is filled between the outer shell 211 and the inner container 212.

With continued reference to fig. 3, the first door body 210 defines therein a door inner chamber 215 and an air duct 216 that communicate with each other. The opening of the door inner 215 is located at a front side of the door inner 215 and can be selectively closed by the second door body 220. Further, both the door evaporator 230 and the door fan 240 are disposed in the air duct 216, and the door fan 240 can drive air to circularly flow between the door inner chamber 215 and the air duct 216 when working.

As shown in fig. 3-6, the door inner chamber 215 is located on a front side of the air duct assembly 213, and the air duct assembly 213 and the inner bladder 212 together define an air duct 216.

Preferably, the cool air outlet 2161 of the air duct 216 is disposed above the door inner 215, and the warm air inlet 2162 of the air duct 216 is disposed at the bottom of the door inner 215, so that the cool air blown out from the cool air outlet 2161 forms an air curtain within the door inner 215.

Further, the air duct 216 includes a vertical portion (not labeled) located on a side of the door inner chamber 215 away from the second door body 220, and a lateral portion (not labeled) located above the door inner chamber 215. A cold air outlet 2161 is formed at the lateral portion, and a hot air inlet 2162 is formed at the vertical portion.

As shown in FIG. 4, the air duct assembly 213 includes an air duct cover plate 2131, a fan mounting plate 2132, and a fan cover plate 2133.

As shown in fig. 3 to 5, the air duct cover plate 2131, the fan mounting plate 2132 and the fan cover plate 2133 are distributed in sequence in a direction away from the second door 220. Moreover, the air duct cover plate 2131 is fixedly connected with the inner container 212, the fan mounting plate 2132 is fixedly connected with the air duct cover plate 2131, and the fan cover plate 2133 is fixedly connected with the air duct cover plate 2131. The air duct cover plate 2131, the fan mounting plate 2132 and the fan cover plate 2133 are connected in any two ways, and the adopted fixed connection mode can be any feasible connection mode such as clamping, screw connection, riveting and the like.

In addition, a person skilled in the art can also fixedly connect the air duct cover plate 2131 to the fan mounting plate 2132 or fixedly connect the air duct cover plate 2131 to the air duct cover plate 2131 and the fan mounting plate 2132 at the same time as required.

As shown in fig. 4 to 6, the duct cover 2131 is in an inverted L shape as a whole. The lateral portion of the air duct cover 2131 corresponds to the lateral portion of the air duct 216, and the vertical portion of the air duct cover 2131 corresponds to the vertical portion of the air duct 216. Further, a lateral portion of the duct cover 2131 is fixedly attached to a top wall of the inner bladder 212, thereby defining at least a portion of a lateral portion of the air outlet duct 216. The vertical portion of the air duct cover 2131 is fixedly connected to the rear wall of the inner container 212 to define at least a portion of the vertical portion of the air outlet duct 216.

As shown in fig. 3 to 5, the fan mounting plate 2132 is provided with a fan mounting position (not marked in the drawings) for mounting the door fan 240, so that the door fan 240 is mounted on the fan mounting plate 2132.

As shown in fig. 4, a notch (not shown) is provided at the top of the fan mounting plate 2132 so that air driven by the door fan 240 can flow out of the notch.

As shown in fig. 4 to 6, a blower inlet 21331 is provided on the blower cover plate 2133 at a position aligned with the door body blower 240, and a grill 21332 for allowing air to flow through is provided on the bottom of the blower cover plate 2133. The top of the fan cover 2133 cooperates with the duct cover 2131 to define a fan outlet 2134 for allowing air flowing from the door fan 240 to flow toward the cold air outlet 2161.

In addition, on the premise of ensuring that air can be driven by the door fan 240 and circularly flows between the door inner chamber 215 and the air duct 216, a person skilled in the art may also shorten the length of the top of the fan cover 2133 as needed, and make the top of the fan cover 2133 shield one side of the top notch of the fan mounting plate 2132, which is close to the fan cover 2133, so that the fan outlet 2134 is defined by the fan cover 2133 and the fan mounting plate 2132. In addition, one skilled in the art can also separately define the blower outlet 2134 by the blower cover plate 2133 or the blower mounting plate 2132, as desired.

As shown in fig. 3 to 5, the door evaporator 230 is fixedly installed on a side of the fan cover 2133 away from the duct cover 2131, and the door evaporator 230 is located above the grill 21332. The defrosting device 250 is located below the door body evaporator 230, and the defrosting device 250 preferably abuts against the door body evaporator 230 to improve heat transfer efficiency between the defrosting device 250 and the door body evaporator 230. The water container 260 is located below the defrosting device 250, and the U-shaped cover 270 is fixedly connected with or integrally formed with the water container 260. Further, U-shaped cover 270 is fixedly attached to grill 21332, and U-shaped cover 270 encloses the vents in grill 21332. Based on this, as can be understood by those skilled in the art, the U-shaped cover 270, the grille 21332 and the water container 260 together surround the defrosting device 250, so that heat generated by the defrosting device 250 is gathered at the lower side of the door body evaporator 230, and the door body evaporator 230 is heated, and the heat generated by the defrosting device 250 is prevented from being dissipated to other places.

Further, the intake duct and the return duct of the door evaporator 230 are disposed between the outer case 211 and the inner bag 212. Preferably, the air inlet pipe and the air return pipe of the door evaporator 230 are wrapped by the foaming agent in the foaming layer 214.

The refrigeration principle of the refrigerator door 200 of the present invention will be described in detail with reference to fig. 7. Wherein the arrows in fig. 7 indicate the paths of the air flow.

As shown in fig. 7, when the second door body 220 closes the door inner chamber 215, the door body fan 240 drives air to flow along the following path as shown by the arrows in fig. 7: the door inner chamber 215 → the hot air inlet 2162 → the air duct 216 (grille 21332 → door evaporator 230 → blower inlet 21331 → door blower 240 → blower outlet 2134) → cool air outlet 2161 → the door inner chamber 215. The air is cooled when passing through the door evaporator 230, and flows into the door inner chamber 215 from above the door inner chamber 215 by the door fan 240, thereby cooling the food in the door inner chamber 215. Then, the air flows into the air duct 216 from the bottom of the door inner 215, and again flows through the door evaporator 230.

As can be seen from fig. 7, since the cool air outlet 2161 is located above the door inner compartment 215 and the warm air inlet 2162 is located at the bottom (preferably, the lowermost end) of the door inner compartment 215, the air in the door inner compartment 215 flows from top to bottom, and thus the air curtain can be formed.

As shown in fig. 8, a refrigeration system 300 of the refrigerator includes a compressor 301, a condenser 302, an optional dew-proof pipe 303, an optional dry filter 304, a control valve 305, a first throttling and depressurizing member 306, a first evaporator 307, a liquid storage bag 308, a first air return pipe 309, a high-pressure pipeline 310, a first joint 311, a high-pressure connecting hose 312, a second joint 313, a door throttling and depressurizing member 314, a second air return pipe 315, a third joint 316, a low-pressure connecting hose 317, a fourth joint 318, an optional heating device 319, a condensing fan 320, a first evaporation fan 321, a door evaporator 230, and a door fan 240.

Specifically, the compressor 301, the condenser 302, the dew-proof pipe 303, the drying filter 304, the control valve 305, the first throttling and depressurizing device 306, the first evaporator 307, the liquid storage bag 308 and the first air return pipe 309 are connected end to end in sequence, so that the refrigerant can circularly flow along the following paths: compressor 301 → condenser 302 → anti-dew tube 303 → dry filter 304 → control valve 305 → first throttling pressure reducing member 306 → first evaporator 307 → reservoir bag 308 → first return air tube 309 → compressor 301. For convenience of the following description, this circulation path will be referred to herein as a first refrigeration path.

Further, the compressor 301, the condenser 302, the dew condensation preventing pipe 303, the drying filter 304, the control valve 305, the high-pressure pipeline 310, the first joint 311, the high-pressure connecting hose 312, the second joint 313, the door throttling and pressure reducing member 314, the second air return pipe 315, the third joint 316, the low-pressure connecting hose 317 and the fourth joint 318 are connected end to end in sequence, so that the refrigerant can circularly flow along the following paths: compressor 301 → condenser 302 → anti-dew tube 303 → dry filter 304 → control valve 305 → high pressure pipe 310 → first joint 311 → high pressure connecting hose 312 → second joint 313 → door body throttling and depressurizing member 314 → second muffler 315 → third joint 316 → low pressure connecting hose 317 → fourth joint 318 → compressor 301. For the convenience of the following description, this circulation path will be referred to herein as a door cooling path.

The control valve 305 includes an inlet 3051, a door outlet 3052, and a first outlet 3053, the control valve 305 is fluidly connected to the outlet of the filter-drier 304 through the inlet 3051, the control valve 305 is fluidly connected to the high-pressure pipe 310 through the door outlet 3052, and the control valve 305 is fluidly connected to the first throttling and depressurizing member 306 through the first outlet 3053.

Further, the control valve 305 is an electrically controlled direction valve, and the control valve 305 controls the refrigerant flowing out of the condenser 302 to flow to the first throttle depressurizing member 306 and/or the door throttle depressurizing member 314. Specifically, when the control valve 305 is switched to communicate with the inlet 3051 and the door outlet 3052, the refrigerant flows in the door cooling path so that the refrigerant flowing out of the condenser 302 flows toward the door throttle depressing member 314. When the control valve 305 is switched to communicate the inlet 3051 with the first outlet 3053, the refrigerant flows in the first cooling path such that the refrigerant flowing out of the condenser 302 flows toward the first throttling and depressurizing member 306. When the control valve 305 is switched to communicate with the inlet 3051, the door body outlet 3052 and the first outlet 3053 at the same time, the refrigerant flowing out of the condenser 302 is split at the control valve 305, one path flows to the door body throttling and depressurizing member 314, and the other path flows to the first throttling and depressurizing member 306.

As shown in fig. 8, in some embodiments of the present invention, the first throttling pressure reducing member 306 and the door body throttling pressure reducing member 314 are both capillary tubes. In addition, in other embodiments of the present invention, the first throttle pressure reducing member 306 and/or the door-body throttle pressure reducing member 314 may be configured as an expansion valve as required by those skilled in the art.

With continued reference to fig. 8, a condensing fan 320 is used to cool the condenser 302. The first evaporator fan 321 is for sending the cool air around the first evaporator 307 into the cabinet interior 110.

In some embodiments of the present invention, the refrigerator is an air-cooled refrigerator, and the first evaporator 307 cools the refrigerating compartment 111 and the freezing compartment 112 simultaneously by the first evaporation fan 321.

Furthermore, as can be understood by those skilled in the art, when the cabinet 100 defines only the refrigerating compartment 111, the first evaporator 307 is a refrigerating evaporator; when the cabinet 100 defines only the freezing compartment 112, the first evaporator 307 is a freezing evaporator.

Further, although not shown in the drawings, in some embodiments of the present invention, the high pressure connection hose 312 includes a portion mounted on the case 100 and a portion mounted on the refrigerator door 200. The low pressure connection hose 317 includes a portion mounted on the cabinet 100 and a portion mounted on the refrigerator door 200. Preferably, the portions of the high-pressure connection hose 312 and the low-pressure connection hose 317 where the cabinet 100 is joined to the refrigerator door 200 are located at the hinge of the refrigerator door 200. It is further preferable that the portions of the high-pressure connection hose 312 and the low-pressure connection hose 317 located at the refrigerator door 200 are located within the foaming layer 214.

With continued reference to fig. 8, the door-body throttling pressure-reducing member 314 is thermally connected to the second air-returning pipe 315, so that the door-body throttling pressure-reducing member 314 heats the second air-returning pipe 315.

Referring to fig. 8, the heating device 319 is used for heating the high-pressure pipeline 310 to raise the temperature of the refrigerant entering the door evaporator 230, so as to prevent condensation due to the low-pressure connecting hose 317. For this purpose, one skilled in the art may also configure a temperature sensor for the low pressure connection hose 317 as needed to detect the temperature of the low pressure connection hose 317 through the temperature sensor, and then turn on the heating device 319 when the temperature of the low pressure connection hose 317 is low.

Based on the foregoing description, it can be understood by those skilled in the art that, in some embodiments of the present invention, by defining the door inner chamber 215 by the refrigerator door 200 and configuring the door body evaporator 230 for the door inner chamber 215, the door inner chamber 215 can be refrigerated by the door body evaporator 230, and the problem that the food material in the door inner chamber 215 and the food material in the cabinet inner chamber 110 have mixed flavors when the door inner chamber 215 is refrigerated by the cabinet inner chamber 110 is overcome. Meanwhile, the door body evaporator 230 also improves the refrigeration efficiency of the door inner chamber 215, and enables the door inner chamber 215 to achieve a lower temperature than the cabinet inner chamber 110, thereby improving the user experience.

As will be appreciated by those skilled in the art, the door inner compartment 215 typically requires less cooling than the cabinet inner compartment 110, since the volume of the door inner compartment 215 is less than the volume of the cabinet inner compartment 110. Therefore, in order to improve the cooling efficiency of the cooling system 300, in some embodiments of the present invention, the flow capacity of the door cooling path section (the high-pressure pipeline 310 → the first joint 311 → the high-pressure connecting hose 312 → the second joint 313 → the door throttle pressure reducing member 314 → the second air return pipe 315 → the third joint 316 → the low-pressure connecting hose 317 → the fourth joint 318 → the compressor 301) is 0.2-0.8 of the flow capacity of the entire cooling system 300. The average cross-sectional area of the pipe line between the control valve 305 and the gate-body-throttling pressure-reducing member 314 is 0.2 to 0.8 of the average cross-sectional area of the pipe line between the condenser 302 and the control valve 305; the average cross-sectional area of the piping between the door evaporator 230 and the inlet of the compressor 301 is 0.2 to 0.8 of the average cross-sectional area of the piping between the reservoir 308 and the inlet of the compressor 301.

Specifically, the average sectional area of the high-pressure piping 310 is set to 0.2 to 0.8, preferably 0.2 to 0.5 of the average sectional area of the piping between the condenser 302 and the filter-drier 304. The average sectional area of the pipe between the fourth connector 318 and the compressor 301 is set to 0.2-0.8, preferably 0.3-0.6 of the average sectional area of the pipe between the reservoir 308 and the compressor 301.

Furthermore, the utility model discloses still provide still some embodiments. For convenience of description and to enable a person skilled in the art to quickly understand the technical solutions of the present invention, only the differences between some embodiments of the present invention and some embodiments described above are described in detail with reference to fig. 9. To the extent that further embodiments of the present invention are identical to some of the embodiments described above, those skilled in the art may refer to some of the embodiments described above.

As shown in fig. 9, in further embodiments of the present invention, the control valve 305 further comprises a second outlet 3054, and the refrigeration system 300 further comprises a second throttling depressurization member 322 and a second evaporator 323 connected in series between the second outlet 3054 and the inlet of the first evaporator 307, so that the control valve 305 controls whether the refrigerant flowing out of the condenser 302 flows to the second throttling depressurization member 322. The refrigerant can circulate along the following paths: compressor 301 → condenser 302 → dew condensation preventing pipe 303 → dry filter 304 → control valve 305 → second throttling decompression member 322 → second evaporator 323 → first evaporator 307 → reservoir 308 → first air return pipe 309 → compressor 301. For the convenience of the following description, this circulation path will be referred to herein as the second cooling path.

Further, the second evaporator 323 is also provided with a second evaporation fan 324.

Wherein the second throttling pressure reducing member 322 is a capillary tube. In addition, in other embodiments of the present invention, the second throttling and depressurizing device 322 can be set as an expansion valve by those skilled in the art according to the requirement.

In still other embodiments of the present invention, the first evaporator 307 is a freezing evaporator for refrigerating the freezing compartment 112, and the second evaporator 323 is a refrigerating evaporator for refrigerating the refrigerating compartment 111.

Further, the present invention provides still other embodiments. For convenience of description and to enable a person skilled in the art to quickly understand the technical solutions of the present invention, only the differences between other embodiments of the present invention and the other embodiments described above will be described in detail with reference to fig. 10. To the extent that other embodiments of the present invention are identical to other previously described embodiments, those skilled in the art can refer to still other previously described embodiments.

As shown in fig. 10, in other embodiments of the present invention, the control valve 305 further includes a third outlet 3055, and the refrigeration system 300 further includes a third throttling pressure reducing member 325 and a third evaporator 326 which are serially connected between the third outlet 3055 and the inlet of the first evaporator 307, so that the control valve 305 controls whether the refrigerant flowing out of the condenser 302 flows to the third throttling pressure reducing member 325. The refrigerant can circulate along the following paths: the compressor 301 → the condenser 302 → the dew prevention pipe 303 → the dry filter 304 → the control valve 305 → the third throttling pressure reducing member 325 → the third evaporator 326 → the first evaporator 307 → the reservoir bag 308 → the first air return pipe 309 → the compressor 301. For the convenience of the following description, this circulation path will be referred to herein as a third refrigeration path.

Further, the third evaporator 326 is also provided with a third evaporation fan 327.

Wherein the third throttling voltage lowering means 325 is a capillary tube. In addition, in other embodiments of the present invention, the third throttling depressurization member 325 can be set as an expansion valve as required by those skilled in the art.

In other embodiments of the present invention, the box 100 further defines a temperature-changing chamber, and the third evaporator 326 is a temperature-changing evaporator for refrigerating the temperature-changing chamber.

Although not shown, in other embodiments of the present invention, unlike any of the embodiments described above, a person skilled in the art may form the opening of the door inner chamber 215 on the inner surface of the first door body 210 and install the second door body 220 on the inner side of the first door body 210, as needed. Alternatively, the structure of the refrigerator door 200 can be appropriately adjusted by those skilled in the art according to the needs, so that the refrigerator door 200 is fixed to the refrigerator body 100 through the second door 220.

Further, one skilled in the art may replace the control valve 305 described in any of the above embodiments with a shut-off valve and configure one shut-off valve for each refrigerant branch, as desired.

So far, the technical solution of the present invention has been described in connection with the foregoing embodiments, but it is easily understood by those skilled in the art that the scope of the present invention is not limited to these specific embodiments. Without deviating from the technical principle of the present invention, those skilled in the art can split and combine the technical solutions in the above embodiments, and also can make equivalent changes or substitutions for related technical features, and any changes, equivalent substitutions, improvements, etc. made within the technical concept and/or technical principle of the present invention will fall within the protection scope of the present invention.

Claims (12)

1. A refrigerator including a cabinet defining an interior compartment, a refrigerator door defining an interior compartment, and a refrigeration system, the refrigeration system comprising:

the first evaporator is used for refrigerating the inner chamber of the box;

the door body throttling and pressure reducing component and the door body evaporator are sequentially connected in series between the outlet of the condenser and the inlet of the compressor, and the door body evaporator is installed on the refrigerator door and used for refrigerating the inner chamber of the refrigerator door;

and the control valve is used for controlling the refrigerant flowing out of the condenser to flow to the first throttling and depressurizing member and/or the door body throttling and depressurizing member.

2. The refrigerator according to claim 1,

the refrigeration system further comprises a second throttling depressurization member and a second evaporator connected in series in sequence between the outlet of the condenser and the inlet of the first evaporator,

the control valve is also used for controlling whether the refrigerant flowing out of the condenser flows to the second throttling depressurization component or not.

3. The refrigerator according to claim 2,

the refrigeration system further comprises a third throttling depressurization member and a third evaporator connected in series in sequence between the outlet of the condenser and the inlet of the first evaporator,

the control valve is also used for controlling whether the refrigerant flowing out of the condenser flows to the third throttling and depressurizing component or not.

4. The refrigerator according to claim 3,

the first evaporator is a freezing evaporator, the second evaporator is a refrigerating evaporator, and the third evaporator is a variable temperature evaporator.

5. The refrigerator according to claim 3,

the control valve comprises an inlet in fluid connection with the outlet of the condenser, a first outlet in fluid connection with the inlet of the first throttling and depressurizing member, a second outlet in fluid connection with the inlet of the second throttling and depressurizing member, a third outlet in fluid connection with the inlet of the third throttling and depressurizing member, and a door body outlet in fluid connection with the inlet of the door body throttling and depressurizing member.

6. The refrigerator according to any one of claims 1 to 5,

the refrigerating system also comprises a door body fan arranged on the refrigerator door, and the door body fan is used for driving the air in the door inner chamber to flow through the door body evaporator; and/or the like and/or,

the refrigeration system further includes a liquid storage bag connected in series between the outlet of the first evaporator and the inlet of the compressor.

7. The refrigerator according to any one of claims 1 to 5,

the door throttling and pressure reducing component is a capillary tube arranged on the refrigerator door.

8. The refrigerator according to claim 7,

the refrigerating system also comprises a high-pressure connecting hose which is connected in series between an inlet of the door body throttling and pressure reducing component and the condenser, and the high-pressure connecting hose comprises a part which is arranged on the refrigerator body and a part which is arranged on the refrigerator door; and/or the like, and/or,

the refrigerating system also comprises a low-pressure connecting hose connected in series between the outlet of the door body throttling and pressure reducing component and the compressor, and the low-pressure connecting hose comprises a part installed on the refrigerator body and a part installed on the refrigerator door.

9. The refrigerator according to claim 8,

the refrigerating system also comprises a high-pressure pipeline connected in series between the high-pressure connecting hose and the condenser and a heating device used for heating the high-pressure pipeline.

10. The refrigerator according to claim 9,

the refrigerator door comprises a first door body arranged on the refrigerator body and a second door body arranged on the first door body,

the door inner chamber is formed on the first door body, and the door body evaporator is also mounted on the first door body.

11. The refrigerator according to claim 6,

the average cross-sectional area of a pipeline between the control valve and the throttle body pressure reducing component is 0.2-0.8 of the average cross-sectional area of a pipeline between the condenser and the control valve;

the average cross-sectional area of the pipeline between the door evaporator and the inlet of the compressor is 0.2-0.8 of the average cross-sectional area of the pipeline between the liquid storage bag and the inlet of the compressor.

12. The refrigerator according to claim 11,

the average cross-sectional area of a pipeline between the control valve and the throttle body pressure reducing component is 0.2-0.5 of the average cross-sectional area of a pipeline between the condenser and the control valve; and/or the like and/or,

the average sectional area of the pipeline between the door evaporator and the inlet of the compressor is 0.3 to 0.6 of the average sectional area of the pipeline between the liquid storage bag and the inlet of the compressor.

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