CN219433582U - Refrigerator return air duct interface assembly and refrigerator - Google Patents

Abstract

The refrigerator return air duct interface assembly comprises an upper duct interface, a connecting pipeline and a lower duct interface; one end of the connecting pipeline is connected with the upper air channel interface, and the other end of the connecting pipeline is connected with the lower air channel interface; the upper air duct interface is movably connected to the inner container of the refrigerator through the refrigerating air port; double faced adhesive tape sponges are adhered to the edges of the inner side walls of the upper air duct interface and the lower air duct interface; the lower air duct interface comprises a first interface and a second interface, the first interface is connected with the connecting pipeline, and the second interface comprises an air duct interface attaching panel, a positioning boss and a sealing adhesive layer; the positioning boss is sleeved in the air duct interface attaching panel; the sealant layer is arranged on the air duct interface attaching panel; the second interface is stuck on the inner container of the refrigerator through the sealant layer. The sealing effect of the air duct can be improved through the air duct interface laminating panel, the positioning boss sleeved in the air duct interface laminating panel and the sealing adhesive layer.

Description

Refrigerator return air duct interface assembly and refrigerator

Technical Field

The application relates to the technical field of refrigeration, in particular to a refrigerator return air duct interface assembly and a refrigerator.

Background

In order to meet the diversified demands of users, different kinds of refrigerators provide various volumes and various cooling modes. The large-volume air-cooled refrigerator has the advantages of large volume, multiple functions and the like.

The single-system two-compartment air-cooled refrigerator is characterized in that an evaporator and a freezing air supply duct are arranged in a freezing compartment, and a refrigerating fan is arranged in the freezing air supply duct. And a refrigerating air supply duct and a refrigerating return air duct are arranged in the refrigerating and freezing compartment foaming layer. The refrigerating air supply channel, the air supply channel and the return air channel in the bubble layer form a refrigerating air channel system for supplying cold source to the refrigerating compartment and the freezing compartment. The cold air is transmitted in the air duct to provide cold energy for the refrigerator storage chamber, and if the air duct is not tightly sealed, cold air leakage can occur, so that the refrigerating performance of the refrigerator is affected, and the use experience of a user is also affected.

The air return connector can be arranged at the preset position of the box liner under the condition of loose sealing of the air duct, and the adhesive tape is used for being stuck to the periphery of the flanging of the air return connector and the box liner, but when the air return connector is arranged by the adhesive tape, the adhesive tape on the air return connector cannot be firmly stuck to the box liner due to poor adhesive property of the adhesive tape and foaming materials, so that the sealing effect of the air duct is reduced.

Disclosure of Invention

The application provides a refrigerator return air wind channel interface assembly and refrigerator to solve the problem that wind channel sealing effect is poor.

In a first aspect, the present application provides a refrigerator return air duct interface assembly, including an upper duct interface, a connecting duct, and a lower duct interface; one end of the connecting pipeline is connected with the upper air channel interface, and the other end of the connecting pipeline is connected with the lower air channel interface; the upper air duct interface is movably connected to the inner container of the refrigerator through a refrigerating air port; the edges of the inner side walls of the upper air channel interface and the lower air channel interface are adhered with double-sided adhesive sponge; the lower air duct interface comprises a first interface and a second interface, the first interface is connected with the connecting pipeline, and the second interface comprises an air duct interface attaching panel, a positioning boss and a sealant layer; the positioning boss is sleeved in the air duct interface attaching panel; the sealant layer is arranged on the air duct interface attaching panel; the second interface is adhered to the inner container of the refrigerator through the sealant layer.

With reference to the first aspect, in a possible implementation manner of the first aspect, the second interface is an interface with a rectangular cross section.

With reference to the first aspect, in a possible implementation manner of the first aspect, the air duct interface is attached to the panel with a wall thickness of 1.5-3.2mm.

With reference to the first aspect, in one possible implementation manner of the first aspect, positioning holes are symmetrically formed at two ends of the air duct interface attaching panel, and the positioning holes are in a circular hole structure; the aperture of the positioning hole is larger than or equal to the diameter of the positioning column on the liner of the refrigerator.

With reference to the first aspect, in one possible implementation manner of the first aspect, the sealant layer includes a double-sided adhesive and release paper, and the release paper is adhered to two sides of the double-sided adhesive.

With reference to the first aspect, in a possible implementation manner of the first aspect, a thickness of the double-sided adhesive tape of the sealant layer is 0.2-1mm.

With reference to the first aspect, in a possible implementation manner of the first aspect, the wall thickness of the positioning boss is 0.5-1.2mm, and the height of the positioning boss is 3-8mm.

With reference to the first aspect, in one possible implementation manner of the first aspect, a through hole is disposed at the center of the sealant layer, the through hole is of a rectangular hole structure, the cross section length of the through hole is equal to the length of an air outlet of the refrigerator, and the cross section width of the through hole is equal to the width of the air outlet of the refrigerator.

With reference to the first aspect, in one possible implementation manner of the first aspect, the second interface inner wall is provided with a plurality of reinforcing ribs, and a plurality of reinforcing ribs are parallel and have equal spacing distances.

In a second aspect, the present application provides a refrigerator, including the above-mentioned refrigerator return air duct interface assembly.

According to the technical scheme, the refrigerator return air duct interface assembly and the refrigerator comprise an upper duct interface, a connecting pipeline and a lower duct interface; one end of the connecting pipeline is connected with the upper air channel interface, and the other end of the connecting pipeline is connected with the lower air channel interface; the upper air duct interface is movably connected to the inner container of the refrigerator through a refrigerating air port; the edges of the inner side walls of the upper air channel interface and the lower air channel interface are adhered with double-sided adhesive sponge; the lower air duct interface comprises a first interface and a second interface, the first interface is connected with the connecting pipeline, and the second interface comprises an air duct interface attaching panel, a positioning boss and a sealant layer; the positioning boss is sleeved in the air duct interface attaching panel; the sealant layer is arranged on the air duct interface attaching panel; the second interface is adhered to the inner container of the refrigerator through the sealant layer. The sealing effect of the air duct can be improved through the air duct interface laminating panel, the positioning boss sleeved in the air duct interface laminating panel and the sealing adhesive layer arranged on the air duct interface laminating panel.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic structural view of a refrigerator return air duct interface assembly according to one embodiment of the present application;

FIG. 2 is a schematic structural diagram of a lower duct interface according to an embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of a lower duct interface according to one embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of an air outlet in a refrigerator according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram illustrating a butt-joint sealing between a lower duct interface and an air outlet according to an embodiment of the present disclosure;

illustration of:

the device comprises a panel, an upper air channel interface, a connecting pipeline, a lower air channel interface, a first interface, a second interface and a connecting panel, wherein the upper air channel interface, the connecting pipeline and the connecting pipeline are arranged at the 1-end, the lower air channel interface, the first interface and the second interface are arranged at the 31-end, the 321-end is attached to the panel, the positioning boss is arranged at the 322-end, the sealant layer is arranged at the 323-end, the positioning hole is arranged at the 324-end, and the release paper is arranged at the 4-end; a-reference column, B-air outlet, C-butt joint department.

Detailed Description

Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the examples below do not represent all embodiments consistent with the present application. Merely as examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

The refrigerator is a refrigerating device which keeps constant low temperature, provides fresh keeping for food and prolongs the decay time of the food. Taking a single-system double-compartment cold air refrigerator as an example, an evaporator and a freezing air supply duct are arranged in a freezing compartment of the single-system double-compartment air cooling refrigerator, and a refrigerating fan is arranged in the freezing air supply duct. And a refrigerating air supply duct and a refrigerating return air duct are arranged in the refrigerating room and the refrigerating room foaming layer. The refrigerating air supply channel, the air supply channel and the return air channel in the bubble layer form a refrigerating air channel system for supplying cold source to the refrigerating compartment and the freezing compartment.

The air supply duct can be arranged from the top of the freezing chamber to the bottom of the refrigerating chamber, has shorter air supply distance and is assembled by one to two parts; the return air duct is arranged at the bottom of the refrigerating chamber to the bottom of the freezing chamber, has a longer return air distance, and is generally composed of a refrigerating return air joint, a freezing return air joint and an extrusion molding piece, wherein the refrigerating return air joint and the freezing return air joint are respectively arranged at the bottom of the refrigerating chamber liner and the bottom of the freezing chamber liner.

The cold air is transmitted in the air duct to provide cold energy for the refrigerator storage chamber, and if the air duct is not tightly sealed, cold air leakage can occur, so that the refrigerating performance of the refrigerator is affected, and the use experience of a user is also affected.

Aiming at the condition that the air duct is not tightly sealed, sealing tapes can be adopted to seal the front, back, left and right sides of the air duct connector for multiple times. In some embodiments, in order to improve the sealing effect of the air duct connector, the air return connector can be installed at a preset position of the box liner, and sealing adhesive tapes are used for adhering the periphery of the flanging of the air return connector and the box liner. In the process of using the sealing adhesive tape to install the return air connector, as the sealing adhesive tape is made of PP (Polypropylene) polypropylene materials, the bonding performance of the polypropylene materials and foaming materials is poor, the adhesive tape on the return air connector cannot be firmly adhered to the box liner, and the sealing effect of the air duct is reduced. Therefore, how to improve the sealing effect of the air duct is a problem to be solved.

In order to solve the technical problem, some embodiments of the present application provide a refrigerator return air duct interface assembly.

As shown in fig. 1, the refrigerator return air duct interface assembly provided in an embodiment of the present application includes an upper duct interface 1, a connecting pipe 2, and a lower duct interface 3; one end of the connecting pipeline 2 is connected with the upper air channel interface 1, and the other end of the connecting pipeline 2 is connected with the lower air channel interface 3; the upper air duct interface 1 is movably connected to the inner container of the refrigerator through a refrigerating air port.

The refrigerator return air duct interface assembly comprises an upper duct interface 1, a connecting pipeline 2 and a lower duct interface 3, and compared with a duct formed by buckling two duct plates together, the overall thickness of the duct plate assembly can be greatly reduced, so that the thickness of the whole return air cavity is reduced, and the space requirements of the duct plate assembly and the return air cavity are reduced.

Double faced adhesive tape sponge is adhered to the edges of the inner side walls of the upper air duct interface 1 and the lower air duct interface 3; the lower air duct interface 3 and the inner container of the refrigerator are fixed together through double faced adhesive tape sponge, so that the tightness is improved. The upper air duct interface 1 is movably connected with the inner container of the refrigerator through a refrigerating air port of the refrigerator, and the lower air duct interface 3 is movably connected with the inner container of the refrigerator through an air outlet of the refrigerator.

As shown in fig. 2 and fig. 3, which are a schematic structural diagram of a lower air duct interface provided in an embodiment of the present application and a schematic cross-sectional diagram of a lower air duct interface provided in an embodiment of the present application, the lower air duct interface 3 includes a first interface 31 and a second interface 32, and the first interface 31 is connected with the connection pipe 2; the second interface 32 is an interface with a rectangular cross section; the second interface 32 includes an air duct interface attaching panel 321, a positioning boss 322, and a sealant layer 323; the positioning boss 322 is sleeved and embedded in the air duct interface attaching panel 321; the sealant layer 323 is arranged on the air duct interface attaching panel 321; the second interface 32 is adhered to the inner container of the refrigerator through a sealant layer 323. Through setting up the location boss 322 in the inside of wind channel interface laminating panel 321, let lower wind channel interface 3 more firmly fix on the refrigerator inner bag, fix a position firmly accurately, promote the seal.

Because the sealant layer 323 is adhered to the air duct interface attaching panel 321, in order to ensure that the sealant layer 323 can be firmly adhered to the liner of the refrigerator, and further consider the space requirements of other components of the air duct and the return air cavity, the thickness of the air duct interface attaching panel 321 needs to be controlled within a certain range, and in one possible implementation manner, the wall thickness of the air duct interface attaching panel 321 is 1.5-3.2mm.

In some embodiments, the second interface 32 is provided with an outward flange and an inward flange, the outward flange and the inward flange are perpendicular to the outer wall of the second interface 32, the outward flange surrounds the outer wall of the second interface 32 for a circle, the outward flange is also adhered with a double-sided adhesive sponge, the double-sided adhesive sponge fixes the outward flange and the inner container of the refrigerator together, a gap between the outward flange and the inner container of the refrigerator is sealed, the possibility that foaming liquid enters the inner container of the refrigerator through the gap is reduced, and the rejection rate in the foaming process is reduced; meanwhile, the lower air duct interface 3 is further helped to be firmly fixed on the inner container of the refrigerator, and the positioning is firm and accurate.

The lower air duct interface 3 is movably connected with the inner container of the refrigerator through the freezing air opening, and foaming liquid is likely to leak into the refrigerator from a gap between the air outlet and the lower air duct interface 3 when the refrigerator body is foamed, so that the foaming refrigerator body is scrapped. The outer flanging is arranged on the lower air duct interface 3, and when the lower air duct interface 3 is movably connected with the inner container of the refrigerator through the air outlet, the inner flanging and the outer flanging are arranged on two sides of the edge of the air outlet, and the inner flanging structure is stuck inside the inner container of the refrigerator, so that the lower air duct interface 3 is prevented from being separated from the inner container of the refrigerator, and foaming liquid can be effectively prevented from penetrating into the inner container from the gap; the outward flange is outside the inner bag of refrigerator, and the outward flange pastes in the inner bag outer wall of refrigerator, and the foaming liquid is difficult for leaking to the inside of case courage from the gap.

In the above embodiment, the foaming liquid is isolated outside the tank body by the outward flange, and even if the foaming liquid passes through the gap between the outward flange and the inner container of the refrigerator, the foaming liquid can be blocked by the inward flange on the other side of the inner container of the refrigerator, so that the foaming liquid cannot easily enter the tank body, and the rejection of the tank body caused by liquid leakage in the foaming process is reduced.

In one possible implementation manner, the distance between the inner flange and the outer flange is equal to the thickness of the edge of the air outlet, so that a gap between the outer flange and the inner container of the refrigerator and a gap between the inner flange and the inner container of the refrigerator become smaller, the possibility that foaming liquid enters the refrigerator from the gap is reduced, and the rejection rate is reduced. In some embodiments, an adhesive tape is arranged on one side of the outward flange, which is close to the lower air duct interface 3, and the adhesive tape plays a role in sealing and positioning and fixing at the same time as the double-sided adhesive sponge arranged between the outward flange and the lower air duct interface 3. In one possible implementation, a double sided adhesive sponge and an adhesive tape may be provided on both sides of the flange at the same time, ensuring the stability of the lower duct interface 3 and the seal between the flange and the inner container of the refrigerator.

In some embodiments, the positioning holes 324 are symmetrically disposed at two ends of the air duct interface attaching panel 321, as shown in fig. 4, which is a schematic structural diagram of an air outlet in the refrigerator according to an embodiment of the present application, wherein a is a positioning column, and B is an air outlet; the aperture of the positioning hole 324 is larger than or equal to the diameter of the positioning column on the inner container of the refrigerator; as shown in fig. 5, in the embodiment of the application, the lower air duct interface and the air outlet are in butt joint and seal schematic, wherein the position C is a butt joint position, and in the air duct sealing process, positioning holes 324 are symmetrically formed at two ends of the air duct interface attaching panel 321 and are assembled with positioning columns arranged on the refrigerator liner, so that the positioning boss 322 arranged on the lower air duct interface 3 can be accurately placed into the air outlet, and the sealing effect of the air duct interface is improved. In order to better enhance the fixing effect, in a possible implementation manner, the positioning hole 324 is a circular hole structure. In one possible implementation, the positioning boss 322 has a wall thickness of 0.5-1.2mm and the positioning boss 322 has a height of 3-8mm.

In some embodiments, the center of the sealant layer 323 is provided with a through hole, and the sealant layer 323 is convenient to adhere to the refrigerator liner by using the through hole at the center of the sealant layer 323; the outer side walls of the upper air channel interface 1 and the lower air channel interface 3 can be respectively and hermetically fixed by using double-sided adhesive sponges adhered to the edges of the inner side walls of the upper air channel interface 1 and the lower air channel interface 3; double-layer sealing of the interface and the refrigerator liner can be realized through the sealing adhesive layer 323, so that the sealing effect of the air duct interface connection is improved, the overflow condition of the foaming adhesive is further reduced, the production efficiency of the refrigerator is ensured, and the scrapping number of refrigerator parts in production is reduced. In one possible implementation, the sealant layer 323 includes a double sided adhesive and release papers 4 adhered on both sides of the double sided adhesive. Considering the space requirements of other components of the air duct and the return air cavity, the thickness of the sealant layer 323 needs to be controlled while the sealant layer 323 can be firmly adhered to the inner container of the refrigerator, and in one possible implementation, the thickness of the double-sided adhesive of the sealant layer 323 is 0.2-1mm. In one possible implementation manner, the through hole is in a rectangular hole structure, the section length of the through hole is equal to the length of the air outlet of the refrigerator, and the section width of the through hole is equal to the width of the air outlet of the refrigerator.

In some embodiments, in order to avoid the situation that the return air duct interface assembly deforms or even breaks due to low strength, the inner wall of the second interface 32 is provided with a plurality of reinforcing ribs, and a plurality of reinforcing ribs are parallel and spaced apart from each other by equal distances, so as to improve the structural strength of the return air duct interface assembly, thereby prolonging the service life of the return air duct interface assembly. In one possible implementation manner, the reinforcing ribs, the positioning boss 322 and the air duct interface attaching panel 321 are integrally injection molded, so as to reduce the processing procedure of the air duct and improve the processing efficiency.

In some embodiments, a refrigerator is further provided, where the refrigerator includes the refrigerator return air duct interface assembly mentioned in the foregoing embodiments.

In some embodiments, positioning boss 322 is integrally molded during injection molding with a wall thickness of 0.5mm, a boss height of 5mm, a length of 120mm, and a width of 40mm of positioning boss 322. The air duct interface laminating panel 321 is integrally formed during injection molding, the wall thickness of the air duct interface laminating panel 321 is 1.5mm, and the distances from the positioning boss 322 to the vertical direction and the horizontal direction of the edge of the air duct interface laminating panel 321 are 50mm. The sealing glue layer 323 is matched with the air duct interface laminating panel 321, the thickness of the sealing glue layer 323 is 0.5mm, a through hole is formed in the middle of the sealing glue layer 323, the through hole is of a rectangular hole structure, the section length of the through hole is equal to the length of an air outlet of the refrigerator, and the section width of the through hole is equal to the width of the air outlet of the refrigerator.

The following provides a mounting process of the refrigerator return air duct interface assembly provided by the above embodiment.

Firstly, the release paper 4 on one side of the sealant layer 323 is torn off, and the sealant layer 323 is adhered to the air duct interface attaching panel 321 by passing through the positioning boss 322 along the middle through hole of the sealant layer 323. Then, the release paper 4 on the other side of the sealant layer 323 is torn off, and the positioning boss 322 is accurately placed into the air outlet through the positioning hole 324 arranged on the air channel interface attaching panel 321 and the positioning column assembly on the inner container of the refrigerator. Finally, the lower air duct interface 3 and the air outlet are tightly fixed together by forced extrusion under the action of the sealant layer 323.

According to the technical scheme, the refrigerator return air duct interface assembly and the refrigerator comprise an upper duct interface, a connecting pipeline and a lower duct interface; one end of the connecting pipeline is connected with the upper air channel interface, and the other end of the connecting pipeline is connected with the lower air channel interface; the upper air duct interface is movably connected to the inner container of the refrigerator through a refrigerating air port; the edges of the inner side walls of the upper air channel interface and the lower air channel interface are adhered with double-sided adhesive sponge; the lower air duct interface comprises a first interface and a second interface, the first interface is connected with the connecting pipeline, and the second interface comprises an air duct interface attaching panel, a positioning boss and a sealant layer; the positioning boss is sleeved in the air duct interface attaching panel; the sealant layer is arranged on the air duct interface attaching panel; the second interface is adhered to the inner container of the refrigerator through the sealant layer. The sealing effect of the air duct can be improved through the air duct interface laminating panel, the positioning boss sleeved in the air duct interface laminating panel and the sealing adhesive layer arranged on the air duct interface laminating panel.

According to the utility model, through improving the structure of the refrigerator return air duct interface assembly body, the sealing glue layer is synchronously stuck at the duct interface, so that the sealing effect of the duct interface is improved.

The foregoing detailed description of the embodiments is merely illustrative of the general principles of the present application and should not be taken in any way as limiting the scope of the utility model. Any other embodiments developed in accordance with the present application without inventive effort are within the scope of the present application for those skilled in the art.

Claims (10)

1. The refrigerator return air duct interface assembly is characterized by comprising an upper duct interface (1), a connecting pipeline (2) and a lower duct interface (3); one end of the connecting pipeline (2) is connected with the upper air duct interface (1), and the other end of the connecting pipeline (2) is connected with the lower air duct interface (3); the upper air duct interface (1) is movably connected to the inner container of the refrigerator through a refrigerating air port;

the edges of the inner side walls of the upper air duct interface (1) and the lower air duct interface (3) are adhered with double faced adhesive tape sponge;

the lower air duct interface (3) comprises a first interface (31) and a second interface (32), the first interface (31) is connected with the connecting pipeline (2), and the second interface comprises an air duct interface attaching panel (321), a positioning boss (322) and a sealing adhesive layer (323); the positioning boss (322) is sleeved in the air duct interface attaching panel (321);

the sealant layer (323) is arranged on the air channel interface attaching panel (321); the second interface (32) is adhered to the inner container of the refrigerator through a sealant layer (323).

2. A refrigerator return air duct interface assembly according to claim 1, wherein the second interface (32) is a rectangular cross-section interface.

3. A refrigerator return air duct interface assembly according to claim 1, wherein the duct interface conforming panel (321) has a wall thickness of 1.5-3.2mm.

4. A refrigerator return air duct interface assembly according to claim 3, wherein positioning holes (324) are symmetrically formed at two ends of the duct interface attaching panel (321), and the positioning holes (324) are of a round hole structure; the aperture of the positioning hole (324) is larger than or equal to the diameter of a positioning column on the liner of the refrigerator.

5. The refrigerator return air duct interface assembly according to claim 1, wherein the sealant layer (323) comprises a double sided adhesive and release paper (4), and the release paper (4) is adhered to two sides of the double sided adhesive.

6. A refrigerator return air duct interface assembly according to claim 5, wherein the sealant layer (323) has a double sided adhesive thickness of 0.2-1mm.

7. A refrigerator return air duct interface assembly according to claim 1, wherein the wall thickness of the positioning boss (322) is 0.5-1.2mm, and the height of the positioning boss (322) is 3-8mm.

8. The refrigerator return air duct interface assembly according to claim 1, wherein the sealing glue layer (323) is provided with a through hole at the center, the through hole is of a rectangular hole structure, the cross-sectional length of the through hole is equal to the length of an air outlet of the refrigerator, and the cross-sectional width of the through hole is equal to the width of the air outlet of the refrigerator.

9. The refrigerator return air duct interface assembly according to claim 1, wherein a plurality of reinforcing ribs are provided on an inner wall of the second interface (32), and the plurality of reinforcing ribs are parallel and spaced apart by equal distances.

10. A refrigerator comprising a refrigerator return air duct interface assembly as claimed in any one of claims 1 to 9.