CN105371576A - Refrigerator door component and refrigerator having same - Google Patents

Abstract

The invention provides a refrigerator door component. The refrigerator door component comprises a door, a water tank and a water taking assembly, wherein the water taking assembly comprises a water inlet part, a hollow valve core, a water outlet part and a water taking handle; the water inlet part includes a water inlet part shell; a first sealing wall is projected on the inner wall of the water inlet part shell; an accommodating space is formed in the first sealing wall; the water outlet part comprises a control rod, and a water outlet part shell connected with the control rod; the control rod is inserted in the hollow valve core; the inner wall of the water outlet part shell is projected with a second sealing wall; the first sealing wall and the second sealing wall are embedded and capable of relatively moving in the axial direction; and the water taking handle is connected with the control rod, and controls the control rod to drive the hollow valve core to switch between a first position and a second position. Compared with the prior art, the door component is few in parts and simple in assembly process, reduces the operation complexity of assemblers, improves the assembly efficiency, and reduces the production cost.

Description

Door assembly for refrigerator and refrigerator having same

technical field

The invention belongs to the technical field of household electrical appliances, and in particular relates to a refrigerator door assembly and a refrigerator with the same.

Background technique

A refrigerator is a device that preserves food and beverages at low temperatures. When the user opens the refrigerator door to take the water or beverage therein, the cold air in the refrigerator will be lost. In order to reduce the energy consumption of the refrigerator, the refrigerator door should be opened as little as possible. At present, most of the high-end refrigerators on the market are equipped with a water dispenser, and a cold water outlet is provided on the door panel to realize the function of taking cold water without opening the refrigerator door.

In the prior art, the door body of the refrigerator with the water dispenser has many components, the assembly relationship is complicated, and the production and processing are very inconvenient, therefore, the production cost is increased. Because the fixing method of the water valve and the water tank is relatively complicated, it is difficult to disassemble, which affects the user's use.

Contents of the invention

The object of the present invention is to provide a refrigerator door assembly capable of solving the above technical problems.

To achieve the purpose of the above invention, the present invention provides a refrigerator door assembly.

The object of the present invention is also to provide a refrigerator.

Among them, the refrigerator door assembly includes:

A door body, the outer side of the door body is provided with a receiving part;

A water tank, which is detachably fixed on the inner side of the door and above the receiving portion, the water tank includes a water tank body and a water tank cover, and the water tank body is provided with a first water outlet;

The water intake assembly is arranged in the housing, and the water intake assembly includes:

The water inlet part includes a water inlet part housing, a first sealing wall protrudes from the inner wall of the water inlet part housing, and an accommodating space is formed in the first sealing wall, and one end of the water inlet part housing is connected to The first water outlet of the water tank body is connected;

The hollow spool is arranged in the accommodating space, the spool includes a first spool part and a second spool part, the first spool part is provided with several fins, and two adjacent A water flow channel is formed between the fins; the second valve core part includes an annular part connected with the first valve core part and a ring extending from the annular part in a direction away from the first valve core part The extension wall is further provided with fixing parts on the outer surface of the extension wall;

The water outlet part includes a control rod and a water outlet part housing connected with the control rod, the control rod is passed through the hollow valve core; the inner wall of the water outlet part housing is provided with a second sealing wall, The first sealing wall and the second sealing wall are nested with each other and can move relative to each other along the axial direction;

The water intake handle is connected with the control rod, and the control rod is controlled by the water intake handle to drive the hollow valve core to switch between the first position and the second position.

As a further improvement of the present invention, one end of the water outlet component housing is provided with a second water outlet, and the water outlet component is arranged such that the end of the second sealing wall close to the second water outlet reaches the second outlet. The distance of the nozzle is 5-9.5 mm, and the movement distance of the control rod along its axis when switching between the first position and the second position is 3.5-5.5 mm.

As a further improvement of the present invention, a stopper portion protrudes from the inner wall of the first sealing wall, and a first sealing member is sleeved on the annular member of the second valve core component. When the first sealing member When in conflict with the stopper, the hollow valve core is located at the first position.

As a further improvement of the present invention, the fixing part is a clamping part extending outward from the outer surface of the extension wall, and the clamping part is arranged at the end of the extension wall. When the clamping part and the stop When the blocking portion interferes, the hollow valve core is located at the second position.

As a further improvement of the present invention, the control rod is provided with a limit rib, and the inner wall of the hollow valve core is provided with a chute cooperating with the limit rib, and the limit rib is inserted into the chute so that The control rod is limited in the radial direction.

As a further improvement of the present invention, the water intake assembly further includes: an elastic member, the elastic member is arranged in the gap between the water inlet component housing and the first sealing wall and between the water outlet component housing and the In the gap between the second sealing wall.

As a further improvement of the present invention, one end of the housing of the water inlet component is screwed to the water outlet of the water tank body, and a second sealing member is provided between the water outlet of the water tank body and the first sealing wall.

As a further improvement of the present invention, a third sealing member is provided between an end of the control rod close to the water inlet component and the hollow valve core.

As a further improvement of the present invention, the inner diameter of the housing of the water inlet component is greater than or equal to the outer diameter of the housing of the water outlet component.

As a further improvement of the present invention, the first sealing wall is divided into the upper part of the first sealing wall and the lower part of the first sealing wall from the stop part, and the diameter of the upper part of the first sealing wall is larger than that of the lower part of the first sealing wall. The outer diameter of the lower part of the first sealing wall is less than or equal to the inner diameter of the second sealing wall.

Correspondingly, a refrigerator comprises the door body assembly according to any one of the above claims.

The beneficial effects of the present invention are: the door body assembly in the present invention has few parts, and the assembly process is simple, thereby reducing the operation complexity of assemblers, improving assembly efficiency, and reducing production costs.

Description of drawings

Fig. 1 is a structural schematic diagram of a refrigerator door body in a specific embodiment of the present invention;

Fig. 2 is a schematic structural view of a refrigerator water box in a specific embodiment of the present invention;

Fig. 3 is a structural schematic diagram of a refrigerator water box at another angle in a specific embodiment of the present invention;

Fig. 4 is a schematic structural view of a refrigerator water box cover in a specific embodiment of the present invention;

Fig. 5 is a schematic structural view of a refrigerator water box without a water filling flip cover in a specific embodiment of the present invention;

6 is a schematic structural view of the second surface of the refrigerator water box cover in a specific embodiment of the present invention;

Fig. 7 is a schematic structural view of the refrigerator water box body in a specific embodiment of the present invention;

Fig. 8 is an exploded view of a refrigerator water intake assembly in a specific embodiment of the present invention;

Fig. 9 is a schematic structural view of the water-intake parts in the water intake assembly of the refrigerator in a specific embodiment of the present invention;

Fig. 10 is a schematic structural view of the hollow valve core in the water intake assembly of the refrigerator in a specific embodiment of the present invention;

Fig. 11 is a schematic structural view of the water outlet component in the water intake assembly of the refrigerator in a specific embodiment of the present invention;

Fig. 12 is a cross-sectional view of the hollow valve core in the first position of the refrigerator water intake assembly in a specific embodiment of the present invention;

Fig. 13 is a cross-sectional view of the hollow valve core of the refrigerator water intake assembly in a second position in a specific embodiment of the present invention.

detailed description

The present invention will be described in detail below in conjunction with various embodiments shown in the drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

The terms used herein to denote relative spatial positions such as "upper", "above", "under", "under", etc. are for convenience of description to describe the relative position of one element or feature relative to another as shown in the drawings. Relationships of units or features. The terms of spatial relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

And, it should be understood that although the terms first, second, etc. may be used herein to describe various elements or structures, these described objects should not be limited by these terms. These terms are only used to distinguish these described objects from one another. For example, a first side wall may be called a second side wall, and similarly, a second side wall may also be called a first side wall, which does not depart from the scope of protection of the present application.

Referring to Fig. 1-Fig. 13, a preferred embodiment of the refrigerator door assembly of the present invention is shown. The refrigerator door assembly of the present invention includes a door body 10 , a water tank 20 and a water intake assembly 40 . A receiving portion (not shown) is provided on the outside of the door body 10, and the receiving portion (not shown in the figure) is a recessed area formed on the outside of the door body for accommodating the water intake assembly.

2-7, the water tank 20 is detachably fixed on the inner side of the door body 10, and is located above the receiving part (not shown in the figure). When the door body 10 is in the closed state, the water tank 20 is located in the refrigerator cooling compartment (not shown).

Specifically, the water tank 20 includes: a water tank body 21 and a water tank cover 22, wherein the water tank body 21 includes a side wall and a bottom wall 214, and the side wall and the bottom wall 214 jointly define a water storage space, wherein the side wall includes a front wall 213 , a rear wall 216 , and two opposite side walls 212 . Preferably, the water tank body is made of PP material, and the water tank cover is made of PE material. The upper end of the water tank body 21 has an opening 215 , and the water tank cover 22 covers the opening 215 to close the opening 215 . In particular, a sealing ring (not shown) is provided between the water tank body 21 and the water tank cover 22 to enhance the airtightness between the water tank body 21 and the water tank cover 22 . It can be understood that the sealing method between the water tank body 21 and the water tank cover 22 is not limited thereto, as long as it can meet the sealing requirements of the water tank 20 .

In order to facilitate the user to replenish water in the water tank 20, the water tank cover 22 is provided with a water inlet 223 and a water injection flip 23 pivotally connected to the water tank cover 22 that can open and close the water inlet 223, and the user can open the water injection flip 23 Water is injected into the water tank 20 from the water inlet 223, and the water injection flip cover 23 is closed after the water injection is completed.

The first water outlet 211 is arranged at the junction of the front wall 213 and the bottom wall 214 of the water tank body 21 , and the first water outlet 211 communicates with the water intake assembly 40 so as to lead out the water in the water tank 20 . Preferably, threads are provided on the first water outlet 211 for connecting with the water intake assembly 40 . In particular, the bottom wall 214 of the water tank body 21 is also provided with a recessed portion 2141 communicating with the water outlet, the recessed portion 2141 is recessed toward the direction away from the water tank cover 22, and the recessed portion 2141 is connected to the inclined surface of the side wall of the water tank body 21, Define the connection between the side wall and the bottom wall of the water tank body 21 as end A, and the connection between the recessed part 2141 and the bottom wall 214 as end B. After the water tank body 21 is installed on the door body 10, the vertical distance from end A to the top 14 of the door body L1, the vertical distance from the B end to the top 14 of the door body is L2, wherein L1 is less than L2, the bottom wall 214 of the water tank body 21 is designed to be non-flat, that is, the bottom wall 214 forms a certain angle with the horizontal line, and the water due to gravity The effect is easy to collect into the depression and flow into the water outlet, so that the bottom of the whole water tank 20 is not easy to accumulate water, and it is clean and hygienic.

As shown in FIG. 1 and FIG. 2 , the water tank 20 can be detachably engaged with the door body 10 through the water tank body 21 . Specifically, the inner side of the door body 10 is provided with a door liner 11 and a first side wall 12 and a second side wall 13 protruding from the door liner 11, and a base 15 is provided between the first side wall 12 and the second side wall 13. , a channel 112 communicating with the receiving portion (not shown) is provided on the base 15 . A first positioning block 121 and a second positioning block 122 are all provided on the first side wall 12 and the second side wall 13, the first positioning block 121 is farther away from the door liner than the second positioning block 122, and the first positioning block 121 is provided with There is a first protrusion 1211 .

The two opposite side walls 212 of the water tank body all have a stepped first wall 2121, a second wall 2122 and a third wall 2123, the second wall 2122 is located between the first wall 2121 and the third wall 2123, and the first wall 2121 is closer to the first water outlet 211 than the second wall 2122 and the third wall 2123, a chute 30 is provided on the first wall 2121, a first notch 31 is provided in the chute 30, the first protrusion 1211 and the first The notch 31 corresponds, and when the water tank body 21 is installed on the first side wall 12 and the second side wall 13 protruding out of the door liner 11, it is only necessary to align the slide groove 30 with the first positioning block 121, so that the first positioning block 121 slides into the chute 30, and the first protrusion 1211 engages with the first notch 31, so that the water tank 20 can be fixed on the door body 10 and is easy to disassemble.

Furthermore, an arched recess 111 is provided on the door liner 11 close to the channel 112 to prevent the water tank 20 from not fitting the door liner 11 due to the first water outlet 211. When the water tank body 21 is installed on the door liner 11, At least part of the first water outlet 211 is located in the arched recess 111 .

In addition, as shown in Fig. 4 and Fig. 6, there is a gap communicating with the external space on the water filling flip 23 of the water tank cover 22, so that the interior of the water tank and the external space are connected to the atmosphere, and the air in the external space can enter the interior of the water tank 20. Thereby, the water in the water tank 20 can be discharged smoothly. Specifically, the water tank cover 22 is provided with a water inlet 223 and a water filling flip 23 that is pivotally connected with the water tank cover 22 and can open and close the water inlet 223. The water tank cover 22 includes a first surface 221 and a surface facing away from the first surface. The second surface 222 of the water injection flip cover 23 is pivotally arranged on the first surface 221. The water injection flip cover 23 is provided with a first protrusion 231 adapted to the water inlet 223. After the water injection flip cover 23 and the water tank cover 22 are fastened , There is a gap 2231 between the first protrusion 231 and the water inlet 223 . The water inlet 223 is connected to other parts of the water tank cover 22 by an inclined plane, and the water inlet 223 protrudes from the second surface 222 in a direction away from the water filling flip cover 23 . A handle part 232 is also provided on the water filling flip cover 23, and the handle part is recessed toward the direction 232 away from the water inlet 223 to form a second protrusion 2321, and the second protrusion 2321 is used to communicate with the gap 2231 and the external space. The water injection flip 23 is also provided with a water injection flip flange 233 protruding toward the water inlet 223 direction. This flange 233 surrounds the water injection flip 23 for a week. 2321 runs through the flange 233 close to the handle portion 232, so that outside air enters the slope around the water inlet 223 from the second protruding portion 2321, and then enters the water tank 20 through the gap 2231, so that the water in the water tank 20 can be discharged smoothly.

Continuing to refer to Figures 8-13, the water intake assembly 40 is arranged on the housing part (not shown) outside the door body 10, through the channel 112 on the base 15 of the door liner 11 that communicates with the housing part and the inside of the door body 10. The water tank 20 is connected to realize taking water from the outside of the refrigerator door without opening the refrigerator door to avoid leakage of cold air. The water intake assembly 40 includes a water inlet part 41, a hollow valve core 42, a water outlet part 43, and a water intake handle (not shown in the figure). The user drives the hollow valve core 42 to move in the axial direction by pulling the water intake handle (not shown in the figure) to realize the hollow valve. Switching of the core 42 between the first position and the second position.

Specifically, the water inlet part 41 includes a water inlet part housing 411, the water inlet part housing 411 is cylindrical, and a first sealing wall 413 protrudes from the inner wall of the water inlet part housing 411, and a container is formed in the first sealing wall 413. Setting space 414. The water inlet 412 is defined as the space from the first sealing wall 413 to the end of the water inlet part near the door body. Looking down from the direction of the water inlet 412, the first sealing wall 413 is placed on the inner wall of the water inlet component housing 411 in a stepped shape. There is a second sealing member 60 , specifically, the second sealing member 60 is arranged on the step surface 4131 of the first sealing wall 413 to prevent water leakage at the joint between the water inlet component 41 and the first water outlet 211 of the water tank body 21 .

The hollow spool 42 is located in the accommodating space 414. The hollow spool 42 includes a first spool part 421 and a second spool part 422. The first spool part 421 is provided with several fins 4211 and several fins. The fins 4211 are equidistantly distributed on the first valve core part 421, and a water flow channel is formed between two adjacent fins 4211. The second valve core part 422 includes an annular part 4221 connected to the first valve core part 421 and an extension wall 4222 extending from the annular part 4221 in a direction away from the first valve core part 421. A fixing piece 4223 is provided. Preferably, the fixing piece 4223 is a clamping portion extending outward from the outer surface of the extension wall. The clamping portion is arranged at the end of the extension wall 4222. The clamping portion also includes a The end face 4224 of the stepped face.

The water outlet part 43 includes a control rod 431 and a water outlet part housing 432 connected with the control rod 431 , and the control rod 431 passes through the hollow valve core 42 . Preferably, the water outlet component housing 432 is in the shape of a hollow circular table, the end of the water outlet component housing 432 away from the water inlet component 41 is a second water outlet 4321, and the inner wall of the water outlet component housing 432 is provided with a second sealing wall 4322, the first The sealing wall 413 and the second sealing wall 4322 are nested with each other and can move relative to each other along the axial direction. Furthermore, the second sealing wall 4322 is sleeved on the outer periphery of the first sealing wall 413 . Preferably, a third sealing member 70 is provided between the end of the control rod 431 close to the water inlet part 41 and the hollow valve core 42 to prevent water from entering the cavity of the hollow valve core.

The elastic member 44 , preferably a spring, is disposed in the gap 4132 between the water inlet component housing 411 and the first sealing wall 413 and the gap 4323 between the water outlet component housing 432 and the second sealing wall 4322 .

On the inner wall of the first sealing wall 413, a stopper 4133 is protruded, and the first sealing wall 413 is divided into a first sealing wall upper part 4133 and a first sealing wall lower part 4134 from the stopper part 4133, and the first sealing wall upper part 4133 The caliber of the lower part of the first sealing wall 4134 is larger than the caliber of the lower part of the first sealing wall 4134, and the outer diameter of the lower part of the first sealing wall 4134 is smaller than or equal to the inner diameter of the second sealing wall 4322.

The ring 4221 of the second spool part 422 is sheathed with a first seal 50. When the first seal 50 collides with the stopper 4133, the hollow spool 42 is at the first position; when the end surface of the clamping part When 4224 conflicts with the stopper 4133, the hollow valve core 42 is located at the second position.

Further, the inner diameter of the water inlet component housing 411 is greater than or equal to the outer diameter of the water outlet component housing 432 , and the water inlet component housing 411 is sheathed on the outer periphery of the water outlet component housing 432 .

It is worth mentioning here that the control rod 431 is provided with a limit rib 4311, and the inner wall of the hollow valve core 42 is provided with a chute (not shown) that cooperates with the limit rib 4311, and the limit rib 4311 is inserted into the chute The control rod 431 is limited in the radial direction. The advantage of this design is that when the control rod 431 moves along its axial direction, it will not move in its radial direction, and the hollow valve core 42 will not shake left and right.

The water intake handle (not shown in the figure) is connected with the control rod 431, and the control rod 431 is controlled by the water intake handle to drive the hollow valve core 42 to switch between the first position and the second position.

When there is an external force to push the water intake handle, the water intake handle drives the control rod 431 to move close to the door body 10 in the axial direction, and the hollow valve core 42 moves close to the door body synchronously with the control rod 431 until the second valve core part 422 of the hollow valve core 42 The end surface 4224 of the clamping part on the top is in conflict with the stopper part 4133, the hollow valve core 42 is located in the second position, there is a gap between the first sealing member 50 and the stopper part 4133, water flows out from the gap, and finally passes through the water outlet part The second water outlet 4321 of 43 flows out. In the above state, since the hollow valve core 42 and the control rod 431 move close to the door body 10 synchronously, the elastic member 44 is compressed. The rod 431 and the hollow spool 42 move away from the door body 10 until the first seal 50 on the second spool part 422 of the hollow spool 42 collides with the stopper 4133 , and the hollow spool 42 is positioned at the first position. location, the flow of water is blocked.

Preferably, the water outlet component 43 is set such that the distance from the end of the second sealing wall 4322 close to the second water outlet 4321 to the second water outlet 4321 is 5-9.5mm, and the control lever 431 is switched between the first position and the second position The movement distance along its axial direction is 3.5~5.5mm. The advantage of this design is that when the empty valve core 42 is in the first position, the water flow is blocked and remains at the end of the second sealing wall 4322 close to the second water outlet 4321 to the The water between the second water outlets 4321 is sealed by external atmospheric pressure, and the second water outlets 4321 no longer drip.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (11)

1. A door body assembly for a refrigerator, characterized in that it comprises: A door body, the outer side of the door body is provided with a receiving part; A water tank, which is detachably fixed on the inner side of the door and above the receiving portion, the water tank includes a water tank body and a water tank cover, and the water tank body is provided with a first water outlet; The water intake assembly is arranged in the housing, and the water intake assembly includes: The water inlet part includes a water inlet part housing, a first sealing wall protrudes from the inner wall of the water inlet part housing, and an accommodating space is formed in the first sealing wall, and one end of the water inlet part housing is connected to The first water outlet of the water tank body is connected; The hollow spool is arranged in the accommodating space, the spool includes a first spool part and a second spool part, the first spool part is provided with several fins, and two adjacent A water flow channel is formed between the fins; the second valve core part includes an annular part connected with the first valve core part and a ring extending from the annular part in a direction away from the first valve core part The extension wall is further provided with fixing parts on the outer surface of the extension wall; The water outlet part includes a control rod and a water outlet part housing connected with the control rod, the control rod is passed through the hollow valve core; the inner wall of the water outlet part housing is provided with a second sealing wall, The first sealing wall and the second sealing wall are nested with each other and can move relative to each other along the axial direction; The water intake handle is connected with the control rod, and the control rod is controlled by the water intake handle to drive the hollow valve core to switch between the first position and the second position. 2. The door assembly for a refrigerator according to claim 1, wherein a second water outlet is provided at one end of the casing of the water outlet component, and the water outlet component is arranged so that the second sealing wall is close to the The distance from one end of the second water outlet to the second water outlet is 5-9.5 mm, and the movement distance of the control rod along its axial direction when switching between the first position and the second position is 3.5 mm. ~5.5mm. 3. The door assembly for a refrigerator according to claim 1, wherein a stopper portion protrudes from the inner wall of the first sealing wall, and a stopper portion is sheathed on the ring-shaped part of the second valve core component. The first sealing member, when the first sealing member interferes with the stopper portion, the hollow valve core is located at the first position. 4. The door assembly for a refrigerator according to claim 3, wherein the fixing member is a clamping portion extending outward from the outer surface of the extension wall, and the clamping portion is arranged on the extension wall At the end, when the clamping portion interferes with the stopper portion, the hollow valve core is located at the second position. 5. The door body assembly for a refrigerator according to claim 1, wherein a limiting rib is provided on the control rod, and a chute cooperating with the limiting rib is provided on the inner wall of the hollow valve core, The limiting rib is inserted into the chute so that the control rod is limited in the radial direction. 6. The refrigerator door assembly according to claim 1, wherein the water intake assembly further comprises: an elastic member, the elastic member is arranged between the water inlet component housing and the first sealing wall and the gap between the water outlet component casing and the second sealing wall. 7. The door assembly for a refrigerator according to claim 1, wherein one end of the water inlet component housing is screwed to the water outlet of the water tank body, and the water outlet of the water tank body is connected to the second water outlet. A second seal is arranged between a seal wall. 8 . The door assembly for a refrigerator according to claim 1 , wherein a third sealing member is provided between an end of the control rod close to the water inlet component and the hollow valve core. 9 . The door assembly for a refrigerator according to claim 1 , wherein an inner diameter of the housing of the water inlet component is greater than or equal to an outer diameter of the housing of the water outlet component. 10. The door assembly for a refrigerator according to claim 1, wherein the first sealing wall is divided into an upper part of the first sealing wall and a lower part of the first sealing wall from the stop part, and the first sealing wall The diameter of the upper part is larger than the diameter of the lower part of the first sealing wall, and the outer diameter of the lower part of the first sealing wall is smaller than or equal to the inner diameter of the second sealing wall. 11. A refrigerator, characterized by comprising the refrigerator door assembly according to any one of the preceding claims.