CN117168062A - Refrigerator door and refrigerator with same - Google Patents

Abstract

The invention provides a refrigerator door and a refrigerator with the same, wherein the refrigerator door comprises a first door body, a second door body, an evaporator and a fan, wherein an inner door chamber and an air duct are defined in the first door body; a second door body is mounted on the first door body and is used for closing the door inner chamber; the evaporator is arranged on the first door body, and at least one part of the evaporator is exposed in the air duct; the fan is used for driving air to circulate in the door inner chamber and the air duct so as to enable the evaporator to cool the air. The invention not only avoids the problem of the smell of food materials in the door inner room and the food materials in the storage room, but also avoids the influence of the door inner room on the refrigeration of the storage room.

Description

Refrigerator door and refrigerator with same

Technical Field

The invention belongs to the technical field of refrigerators, and particularly provides a refrigerator door and a refrigerator with the same.

Background

A refrigerator is a refrigerating apparatus capable of freezing and refrigerating food materials. The existing frozen food materials are various, such as raw food materials of chickens, ducks, fishes, shrimps and the like, cooked foods of steamed bread, steamed rolls, steamed stuffed buns and the like, and cold drinks of ice cream, ice cream and the like. Raw food materials are often stored for a long time, cooked food materials are often stored for a short time, and cold drink materials are often stored intermittently.

In life, the edible materials stored in a short time are frequently eaten, for example, the cooked wheaten food is eaten basically every meal, and the freezing chamber door of the refrigerator is frequently opened, so that the temperature fluctuation in the freezing chamber is large, and further raw edible materials such as chickens, ducks, fishes and shrimps are repeatedly thawed and frozen, and the quality of the raw edible materials in long-time storage is affected.

To overcome the above problems, some refrigerators provide a refrigerator door (e.g., a freezer door) as a door-in-door. Specifically, the refrigerator door includes a main door defining an inner door compartment and a vent for communicating the inner door compartment with the freezing compartment, and a sub door installed at an outer side of the main door and for closing the inner door compartment. Food materials (e.g., pasta) that require short-time freezing are placed in the door compartment, and food materials that require long-time freezing are placed in the freezer compartment. When a user needs to take out food materials frozen in a short time, the user only needs to open the auxiliary door on the refrigerator door, so that the phenomenon that the freezing compartment is more in loss of cooling when the whole refrigerator door is opened is avoided, and the quality of raw food materials stored for a long time is ensured.

However, there are still some problems with the current refrigerators having a door-in-door. For example, since the door inner compartment and the freezing compartment communicate with each other, the food material is liable to be tainted. Especially, food materials with large fishy smell such as seafood and fish can be stored in the freezing room, steamed wheaten food such as steamed bread, steamed rolls and steamed stuffed buns can be put in the door room, and the wheaten food is easy to absorb peculiar smell, so that the wheaten food in the freezing room is easy to taint smell, and the use experience of users is affected. In addition, the existing door inner compartments need to be refrigerated by means of the refrigerating capacity of the refrigerating compartments, so that the refrigerating efficiency of the refrigerating compartments is greatly affected.

Disclosure of Invention

The invention aims to solve the problem of food material smell mixing in the existing refrigerator.

It is a further object of the present invention to provide a refrigerator door with an independent evaporator so as not to affect the refrigeration of the freezer compartment or the refrigerator compartment within the refrigerator while ensuring a low temperature and refrigeration efficiency of the compartment within the door.

It is still a further object of the present invention to provide a refrigerator door in which cold air in the door compartment is formed into an air curtain to reduce the loss of cold in the door compartment when the door compartment is opened.

To achieve the above object, the present invention provides in a first aspect a refrigerator door comprising:

a first door body defining a door inner compartment and an air duct therein;

a second door body installed on the first door body and closing the door inner compartment;

the evaporator is arranged on the first door body, and at least one part of the evaporator is exposed in the air duct;

and the fan is used for driving air to circulate in the door inner chamber and the air duct so as to cool the air by the evaporator.

Optionally, the cold air outlet of the air duct is arranged above the indoor compartment, and the hot air inlet of the air duct is arranged at the bottom of the indoor compartment, so that cold air blown out from the cold air outlet forms an air curtain in the indoor compartment.

Optionally, the air duct includes a vertical portion and a lateral portion, the vertical portion is located at a side of the door inner compartment away from the second door body, and the lateral portion is located above the door inner compartment; the cold air outlet is formed on the transverse portion, and the hot air inlet is formed on the vertical portion.

Optionally, the first door body includes shell, inner bag and wind channel subassembly that arranges in proper order from outside to inside, the inner bag with wind channel subassembly jointly defines the wind channel.

Optionally, the air duct assembly comprises an air duct cover plate fixedly connected with the inner container, a fan mounting plate arranged between the air duct cover plate and the inner container, and a fan cover plate arranged between the fan mounting plate and the inner container, wherein the fan mounting plate is fixedly connected with the air duct cover plate and is used for mounting the fan; the fan cover plate is fixedly connected with the air duct cover plate and/or the fan mounting plate, a fan air inlet for supplying air to the fan is formed in the fan cover plate, and a fan air outlet for enabling air flowing out of the fan to flow to the cold air outlet is formed in the fan cover plate and/or the fan mounting plate; the evaporator is arranged on one side of the fan cover plate, which is far away from the air duct cover plate.

Optionally, a grid is arranged at the bottom of the fan cover plate, and at least one part of the grid is positioned below the fan mounting plate; the refrigerator door further comprises a water receiving container for containing defrosting water of the evaporator, and the water receiving container is arranged at the grid of the fan cover plate.

Optionally, the refrigerator door further comprises a heating device arranged between the evaporator and the water receiving container and a U-shaped cover arranged on the outer side of the heating device, wherein the U-shaped cover is fixedly connected with the water receiving container or integrally made, and the U-shaped cover is abutted with the grille so that the grille, the water receiving container and the U-shaped cover surround the heating device.

Optionally, the first door body is provided with a water outlet communicated with the water receiving container, the refrigerator door further comprises a water storage box detachably mounted on the first door body, and the water storage box is communicated with the water outlet when mounted on the first door body.

The present invention provides in a second aspect a refrigerator comprising:

a case;

the refrigerator door of any one of the first aspects, the refrigerator door being mounted on the cabinet through the first door body or the second door body;

the compressor, the condenser, the throttling and depressurization component and the evaporator are connected end to end in sequence.

Optionally, the refrigerator is configured to control the fan to rotate at a set maximum rotation speed when the second door is detected to be opened.

Based on the foregoing, it can be appreciated by those skilled in the art that in the foregoing technical solution of the present invention, by defining the door inner compartment by the first door body and closing the door inner compartment by the second door body, the door inner compartment in the refrigerator door is prevented from communicating with the storage compartment (the freezing compartment and/or the refrigerating compartment) of the refrigerator, and thus the problem of food material in the door inner compartment and food material in the storage compartment from tainting. Further, the inner compartment of the door is cooled through the evaporator, so that the inner compartment of the door can obtain higher refrigeration efficiency and temperature different from that of the storage compartment, particularly, temperature lower than that of the storage compartment can be obtained, and the use experience of a user on the refrigerator is improved. Meanwhile, the influence of the inner chamber of the door on the refrigeration of the storage chamber is avoided.

Further, the cold air outlet of the air duct is arranged above the indoor compartment, and the hot air inlet of the air duct is arranged at the bottom of the indoor compartment, so that cold air blown out from the cold air outlet forms an air curtain in the indoor compartment. When the door inner chamber is opened, most of air current blown out of the air curtain type air outlet in the door inner chamber can still flow back to the air duct from the hot air inlet, so that the loss of cold energy when the door inner chamber is opened is reduced. Meanwhile, when the indoor room in the door is opened, the air curtain can also separate food stored in the indoor room in the door from the external environment, so that the temperature rise of the food in the indoor room in the door is avoided.

Still further, through making the refrigerator when detecting that the second door body is opened, control the fan and rotate with the highest rotational speed of settlement for cold wind has high enough velocity of flow and inertia when blowing out from cold wind export, is difficult for receiving the convection current influence that produces when the second door body opens the door, has avoided or has reduced the loss of cold volume in the door inner compartment effectively.

Still further, through the water storage box that disposes detachable for the refrigerator door for when the user is in the defrosting water in the water storage box more, can take off the water storage box from the refrigerator door, and empty out the defrosting water in the water storage box.

The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read 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. It will be understood by those skilled in the art that components or portions thereof identified in different drawings by the same reference numerals are identical or similar; the drawings of the invention are not necessarily to scale relative to each other.

In the accompanying drawings:

fig. 1 is a schematic configuration view of a refrigerator in some embodiments of the present invention;

FIG. 2 is an isometric view of a refrigerator door in some embodiments of the invention;

FIG. 3 is a cross-sectional view of the refrigerator door of FIG. 2 taken along the direction A-A;

FIG. 4 is an exploded view of the components of the track assembly and mounted thereon in some embodiments of the invention;

FIG. 5 is a rear, upper isometric view of a duct assembly and components mounted thereon in accordance with some embodiments of the present invention;

FIG. 6 is a front upper isometric view of a duct assembly and components mounted thereon in accordance with some embodiments of the present invention;

FIG. 7 is a schematic illustration of the effect of indoor air flow in a door (door closing) according to some embodiments of the invention;

FIG. 8 is a schematic view of the effect of indoor air flow in a door (door opening) according to some embodiments of the invention;

fig. 9 is a partial construction schematic view of a refrigerating part of a refrigerator in some embodiments of the present invention.

Detailed Description

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

It should be noted that, in the description of the present invention, terms such as "center", "upper", "lower", "above", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships, which are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present 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 also be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.

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

As shown in fig. 1, in some embodiments of the present invention, a refrigerator includes a cabinet 100 and a refrigerator door 200. The refrigerator door 200 serves to close the storage compartment 110, wherein the case 100 defines the storage compartment 110. Further, the storage compartment 110 includes a refrigerating compartment 111 and a freezing compartment 112.

Alternatively, in some embodiments of the present invention, the refrigerating compartment 111 and the freezing compartment 112 are respectively provided 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 configure only one refrigerator door 200 for the refrigerator compartment 111 and/or the freezer compartment 112 as desired. Alternatively, one skilled in the art may also configure the refrigerating compartment 111 and/or the freezing compartment 112 with three or more refrigerator doors 200 as desired.

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

If only one of the refrigerator doors configured in 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 refrigerator door configured in the other of the refrigerating compartment 111 and the freezing compartment 112 may be a conventional refrigerator door.

Further, it is also possible for those skilled in the art to provide only the refrigerating compartment 111 or the freezing compartment 112 for the cabinet 100 and provide the refrigerator door 200 having the door inner compartment 215 (shown in fig. 3) described later for the refrigerating compartment 111 or the freezing compartment 112 according to necessity.

As shown in fig. 1 to 3, in some embodiments of the present invention, a refrigerator door 200 includes a first door 210 and a second door 220. The first door 210 is mounted on the case 100, and preferably, the first door 210 is pivotally mounted on the case 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, one skilled in the art may also mount the second door 220 on the first door 210 in any other feasible manner, as desired. For example, the second door 220 is slidably mounted on the first door 210.

As shown in fig. 3 to 5, the refrigerator door 200 further includes a blower fan 240, a heating device 250, a water receiving container 260, and a U-shaped cover 270 mounted on the first door body 210. Wherein the blower 240 is used to drive air through the evaporator 230 to cool the air by the evaporator 230. The heating device 250 is used to heat the evaporator 230 to melt frost on the evaporator 230. The water receiving container 260 serves to receive the defrost water falling from the evaporator 230. The U-shaped cover 270 is used to assist the water receiving container 260 to wrap the heating device 250, so that heat generated by the heating device 250 gathers at the lower side of the evaporator 230 and heats the evaporator 230, preventing heat generated by the heating device 250 from escaping to other places. In other words, the U-shaped cover 270 can enhance the heat utilization rate of the heating device 250.

As shown in fig. 4, the fan 240 is preferably a centrifugal fan. Of course, one skilled in the art may also set the blower 240 as other forms of blowers, such as axial flow blowers, as desired. The heating device 250 is preferably an electric heating device, and furthermore, a person skilled in the art may omit the provision of the heating device 250 and use the evaporator 230 as a condenser when defrosting, as required.

As shown in fig. 3, the first door 210 includes a housing 211, a liner 212, an air duct assembly 213, and a foaming 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 210 defines an interior compartment 215 and an air duct 216 therein that communicate with one another. The opening of the door inner compartment 215 is located at the front side of the door inner compartment 215 and can be selectively closed by the second door 220. Further, both the evaporator 230 and the blower 240 are disposed within the air duct 216, and the blower 240 is operable to drive air to circulate between the door compartment 215 and the air duct 216.

As shown in fig. 3 to 6, the door compartment 215 is located at the front side of the air duct assembly 213, and the air duct assembly 213 and the liner 212 together define an air duct 216.

Preferably, the cool air outlet 2161 of the air duct 216 is disposed above the inter-door compartment 215, and the hot air inlet 2162 of the air duct 216 is disposed at the bottom of the inter-door compartment 215, so that the cool air blown out from the cool air outlet 2161 forms an air curtain in the inter-door compartment 215.

Further, the air duct 216 includes a vertical portion (not shown) located on a side of the door inner compartment 215 away from the second door 220, and a lateral portion (not shown) located above the door inner compartment 215. The cool air outlet 2161 is formed on the lateral part, and the hot air inlet 2162 is formed on the vertical part.

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

As shown in fig. 3 to 5, the duct cover 2131, the fan mounting plate 2132 and the fan cover 2133 are sequentially distributed in a direction away from the second door 220. And, wind channel apron 2131 and inner bag 212 fixed connection, fan mounting panel 2132 and wind channel apron 2131 fixed connection, fan apron 2133 and wind channel apron 2131 fixed connection. Any two of the air duct cover plate 2131, the fan mounting plate 2132 and the fan cover plate 2133 have a connection relationship, and the adopted fixed connection mode can be any feasible connection mode such as clamping connection, screw connection, riveting and the like.

In addition, those skilled in the art may also fixedly connect the air duct cover 2131 with the fan mounting plate 2132, or fixedly connect the air duct cover 2131 with both the air duct cover 2131 and the fan mounting plate 2132, as desired.

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

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

As shown in fig. 4, the top of the fan mounting plate 2132 is provided with a notch (not labeled in the figures) to enable air driven by the fan 240 to flow out of the notch.

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

In addition, under the premise of ensuring that air can be driven by the blower 240 and circulated between the door inner compartment 215 and the air duct 216, a person skilled in the art can shorten the length of the top of the blower cover plate 2133 and shield the top of the blower cover plate 2133 from the notch of the top of the blower mounting plate 2132 near one side of the blower cover plate 2133 as required, so that the blower outlet 2134 is defined by the blower cover plate 2133 and the blower mounting plate 2132. In addition, one skilled in the art can also have the fan outlet 2134 defined solely by the fan cover plate 2133 or the fan mounting plate 2132 as desired.

As shown in fig. 3 to 5, the evaporator 230 is fixedly installed at a side of the fan cover 2133 remote from the duct cover 2131, and the evaporator 230 is located above the grill 21332. The heating device 250 is located below the evaporator 230, and the heating device 250 preferably abuts the evaporator 230 to enhance heat transfer efficiency between the heating device 250 and the evaporator 230. The water receiving container 260 is positioned below the heating device 250, and the U-shaped cover 270 is fixedly connected with or integrally formed with the water receiving container 260. Further, the U-shaped cover 270 is fixedly connected to the grille 21332, and the U-shaped cover 270 encloses the vents in the grille 21332. Based on this, it will be understood by those skilled in the art that the U-shaped cover 270, the grill 21332 and the water receiving container 260 collectively surround the heating device 250, thereby gathering heat generated by the heating device 250 at the lower side of the evaporator 230 and heating the evaporator 230, preventing heat generated by the heating device 250 from escaping to other places.

Further, an intake pipe and an air return pipe of the evaporator 230 are disposed between the housing 211 and the liner 212. Preferably, the air intake and return pipes of the evaporator 230 are surrounded by the foaming agent in the foaming layer 214.

Further, although not shown, in some embodiments of the present invention, a water outlet communicating with the water receiving container 260 is provided on the first door 210. The refrigerator door 200 further includes a water storage box detachably mounted on the first door body 210, and the water storage box communicates with the water outlet when mounted on the first door body 210. When the water storage box has more defrosting water, a user can take the water storage box off the refrigerator door 200 and pour out the defrosting water in the water storage box.

The refrigerating principle of the refrigerator door 200 of the present invention will be described in detail with reference to fig. 7 and 8. Wherein arrows in fig. 7 and 8 represent paths of air flow.

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

As can be seen from fig. 7, since the cool air outlet 2161 is located above the indoor compartment 215, the hot air inlet 2162 is located at the bottom (preferably, the bottommost end) of the indoor compartment 215, so that the air in the indoor compartment 215 flows from top to bottom and thus an air curtain can be formed.

As shown in fig. 8, when the second door 220 opens the inter-door compartment 215, the blower 240 continues to rotate, so that the cool air continues to flow from top to bottom in the inter-door compartment 215, forming an air curtain.

As will be appreciated by those skilled in the art, due to the presence of the air curtain, when the door inner compartment 215 is opened, a substantial portion of the air flow within the door inner compartment 215 that is blown out of the air curtain from the cold air outlet 2161 is still able to flow back into the air duct 216 from the hot air inlet 2162, thereby reducing the loss of cold when the door inner compartment 215 is opened. Meanwhile, when the air curtain is opened in the door inner chamber 215, food materials stored in the door inner chamber 215 can be separated from the external environment, and temperature rise of the food materials in the door inner chamber 215 is avoided.

Preferably, the refrigerator door 200 is provided with a door opening detector for detecting whether the second door 220 is opened, which can be any viable detector. For example, a micro switch mounted on the first door 210 and capable of being triggered by the second door 220 when the door is closed. The micro switch may be switched from an off state to an on state or from an on state to an off state when triggered by the second door 220.

Further, the refrigerator is configured such that when the second door 220 is opened, as detected by the door opening detector, the blower 240 is controlled to rotate at a set maximum rotation speed so that the cool air is blown out from the cool air outlet 2161 with a sufficiently high flow rate and inertia, which is not easily affected by convection generated when the second door 220 is opened, thereby avoiding or effectively reducing the loss of cool air in the door compartment 215.

Wherein the set maximum rotational speed is not lower than the normal rotational speed of the fan 240 when operating, preferably the maximum rotational speed that can be reached by the fan 240. The maximum rotational speed may be set by the manufacturer of the blower 240.

As shown in fig. 9, in some embodiments of the present invention, the refrigerator further includes a compressor 300, a condenser 400, and a throttle reducing member 500. Further, an outlet of the compressor 300 is fluidly connected to an inlet of the condenser 400, an outlet of the condenser 400 is fluidly connected to an inlet of the throttle reducing member 500, an outlet of the throttle reducing member 500 is fluidly connected to an inlet of the evaporator 230, and an outlet of the evaporator 230 is fluidly connected to an inlet of the compressor 300. The evaporator 230 receives the low-temperature refrigerant flowing out of the throttle reducing member 500, cools the inter-door chamber 215, and then the compressor 300 receives the refrigerant after the temperature in the evaporator 230 has been raised.

In some embodiments of the invention, the orifice reducing member 500 may be a capillary tube or an expansion valve.

Although not shown in the drawings, in some embodiments of the present invention, the refrigerator further includes an evaporator for providing cold to the storage compartment 110, which is referred to herein as a case evaporator for convenience of explanation. Further, the case evaporator may share one throttle reducing member 500 with the evaporator 230, or one throttle reducing member 500 may be used separately with the evaporator 230. Since means for connecting the compressor 300, the condenser 400, the throttle reducing member 500 and the tank evaporator together are common knowledge in the art, a detailed description thereof will not be provided herein.

It will be understood by those skilled in the art that when the tank evaporator and the evaporator 230 share one throttle reducing member 500, a flow dividing valve (e.g., a three-way control valve) may be further provided for the tank evaporator and the evaporator 230 so that the refrigerant flowing out of the throttle reducing member 500 alternatively flows to the tank evaporator and the evaporator 230, or so that a part of the refrigerant flowing out of the throttle reducing member 500 flows to the tank evaporator and another part flows to the evaporator 230.

Although not shown, the present invention provides still other embodiments. For convenience of description, and to enable one skilled in the art to quickly understand the technical solutions of the present invention, only the differences between the other embodiments of the present invention and those described above will be described in detail. For further embodiments of the invention, those skilled in the art may refer to some of the embodiments described hereinbefore, as are the same as some of the embodiments described hereinbefore.

In still other embodiments of the present invention, unlike some of the embodiments described above, the opening of the door inner compartment 215 is formed on the inner surface of the first door body 210, and the second door body 220 is installed at the inner side of the first door body 210.

Further, although not shown, the present invention provides other embodiments. For convenience of description, and to enable one 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 some or further embodiments described above will be described in detail. For some embodiments of the invention, the person skilled in the art may refer to some of the embodiments described above, in common with some or all of the embodiments described above.

In other embodiments of the present invention, the structure of the refrigerator door 200 may be appropriately modified as required by those skilled in the art to fix the refrigerator door 200 to the cabinet 100 through the second door 220, unlike some or still other embodiments described above.

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

Claims (10)

1. A refrigerator door comprising:

a first door body defining a door inner compartment and an air duct therein;

a second door body installed on the first door body and closing the door inner compartment;

the evaporator is arranged on the first door body, and at least one part of the evaporator is exposed in the air duct;

and the fan is used for driving air to circulate in the door inner chamber and the air duct so as to cool the air by the evaporator.

2. The refrigerator door of claim 1, wherein,

the cold air outlet of the air duct is arranged above the indoor compartment, and the hot air inlet of the air duct is arranged at the bottom of the indoor compartment, so that cold air blown out from the cold air outlet forms an air curtain in the indoor compartment.

3. The refrigerator door of claim 2, wherein,

the air duct comprises a vertical part and a transverse part,

the vertical part is positioned at one side of the door inner chamber away from the second door body, and the transverse part is positioned above the door inner chamber;

the cold air outlet is formed on the transverse portion, and the hot air inlet is formed on the vertical portion.

4. The refrigerator door according to claim 2 or 3, wherein,

the first door body comprises a shell, an inner container and a wind channel component which are sequentially arranged from outside to inside,

the liner and the air duct assembly together define the air duct.

5. The refrigerator door of claim 4, wherein,

the air duct component comprises an air duct cover plate fixedly connected with the inner container, a fan mounting plate arranged between the air duct cover plate and the inner container and a fan cover plate arranged between the fan mounting plate and the inner container,

the fan mounting plate is fixedly connected with the air duct cover plate and used for mounting the fan;

the fan cover plate is fixedly connected with the air duct cover plate and/or the fan mounting plate, a fan air inlet for supplying air to the fan is formed in the fan cover plate, and a fan air outlet for enabling air flowing out of the fan to flow to the cold air outlet is formed in the fan cover plate and/or the fan mounting plate;

the evaporator is arranged on one side of the fan cover plate, which is far away from the air duct cover plate.

6. The refrigerator door of claim 5, wherein,

a grid is arranged at the bottom of the fan cover plate, and at least one part of the grid is positioned below the fan mounting plate;

the refrigerator door further comprises a water receiving container for containing defrosting water of the evaporator, and the water receiving container is arranged at the grid of the fan cover plate.

7. The refrigerator door of claim 6, wherein,

the refrigerator door also comprises a heating device arranged between the evaporator and the water receiving container and a U-shaped cover arranged outside the heating device,

the U-shaped cover is fixedly connected with the water receiving container or integrally manufactured, and is abutted against the grille, so that the grille, the water receiving container and the U-shaped cover surround the heating device.

8. The refrigerator door of claim 6, wherein,

the first door body is provided with a water outlet communicated with the water receiving container,

the refrigerator door further comprises a water storage box detachably mounted on the first door body, and the water storage box is communicated with the water outlet when mounted on the first door body.

9. A refrigerator, comprising:

a case;

the refrigerator door of any one of claims 1 to 8, the refrigerator door being mounted on the door body through the first door body or the second door body;

the compressor, the condenser, the throttling and depressurization component and the evaporator are connected end to end in sequence.

10. The refrigerator of claim 9, wherein,

the refrigerator is configured to control the blower to rotate at a set maximum rotation speed when the second door is detected to be opened.