Air duct joint structure and refrigerator thereof

Abstract

The utility model discloses an air duct joint structure and a refrigerator thereof, and relates to the technical field of refrigerators, the air duct joint structure comprises an air duct joint, the air duct joint comprises an air door cover and an air guide cover, and the air guide cover is fixedly connected to the lower end of the air door cover and is provided with a through air guide hole; a foam fixing seat is fixedly mounted on the upper portion of the wind scooper, a plurality of vent holes are formed in the upper portion of the foam fixing seat, a plurality of mounting grooves are formed in the lower portion of the foam fixing seat and communicated with the vent holes, and electric air doors are mounted at the mounting grooves and mounted on the air door cover through air door supports. The inner wall of the air door cover is provided with a supporting step used for installing an air door support. The protruding supporting step is arranged on the inner circumference of the plastic part air duct connector to support the electric air door, the electric air door cannot sink due to gravity, pressing and the like in the assembling process, and therefore the problem that a gap is generated between the electric air door and the foam fixing base is solved, and air leakage at the bottom of the refrigeration air duct after installation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to an air duct joint structure and a refrigerator thereof. Background Art

[0002] As one of the important household appliances in modern life, the upright refrigerator stands out with its unique upright design. This type of refrigerator maximizes the saving of floor area through vertically arranged storage space, while providing ample storage space for users to organize and store various foods and drinks. The upright refrigerator is generally designed with a refrigerator and a freezer. An air duct is usually arranged at the back of the refrigerator and the freezer for communication. The existing air duct joint assembly is assembled by a plastic air duct joint, an electric damper and a foam fixing seat. The foam fixing seat and the electric damper are sealed by a sponge strip, and the foam fixing seat and the injection molded air duct joint are also sealed by a sponge strip. Since there is no support between the electric damper and the plastic air duct joint, the electric damper sinks due to gravity pressure during the assembly process, and a gap is generated between the electric damper and the foam fixing seat, resulting in air leakage at the bottom after the refrigeration air duct is installed. Utility Model Content

[0003] The utility model aims to provide an air duct joint structure and a refrigerator thereof, so as to solve the technical problem that the air duct structure of the existing refrigerator has bottom air leakage after installation.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A duct joint structure comprises an duct joint, wherein the duct joint comprises a damper cover and an air guide cover, wherein the air guide cover is fixedly connected to the lower end of the damper cover and is provided with a through air guide hole; a foam fixing seat is fixedly installed on the upper part of the damper cover, a plurality of ventilation holes are provided on the upper part of the foam fixing seat, a plurality of mounting grooves are provided on the lower part of the foam fixing seat, the mounting grooves are connected with the ventilation holes, an electric damper is installed at the mounting groove, the electric damper is installed on the damper cover through a damper bracket, and a supporting step for mounting the damper bracket is provided on the inner wall of the damper cover.

[0006] As a further solution of the utility model: sealing rings are arranged between the damper bracket and the bottom of the mounting groove, and between the damper cover and the foam fixing seat.

[0007] As a further solution of the utility model: an upper connecting plate and an upper arc plate for installing an air duct joint are arranged on the upper end of the air door cover.

[0008] As a further solution of the utility model: a lower connecting plate and a lower arc plate for installing an air duct joint are arranged at the lower end of the air guide cover.

[0009] As a further solution of the utility model: a refrigerator comprises the above-mentioned air duct joint structure and a refrigerator frame, wherein a refrigerating chamber liner and a freezing chamber liner are arranged in the refrigerator frame, a refrigerating air duct is arranged on the rear side of the refrigerating chamber liner, a freezing air duct is arranged on the rear side of the freezing chamber liner, and the air duct joint structure is located between the refrigerating air duct and the freezing air duct, and is used to connect the refrigerating air duct and the freezing air duct.

[0010] The beneficial effects of the utility model are as follows: a raised supporting step is provided on the inner periphery of the plastic air duct joint to support the electric air door. Gravity and pressing during assembly will not cause the electric air door to sink, thereby solving the gap between the electric air door and the foam fixing seat and avoiding air leakage at the bottom after the refrigeration air duct is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings.

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the air duct joint structure of the utility model;

[0013] Figure 2 It is a cross-sectional structural schematic diagram of the air duct joint structure of the utility model;

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the refrigerator of the utility model;

[0015] Figure 4 It is a cross-sectional structural schematic diagram of the refrigerator of the utility model.

[0016] In the figure: 1. foam fixing seat; 11. ventilation hole; 12. mounting slot; 2. air duct joint; 21. air door cover; 22. upper connecting plate; 23. upper arc plate; 24. supporting step; 25. air guide cover; 26. lower connecting plate; 27. lower arc plate; 3. electric air door; 31. air door bracket; 4. sealing ring; 5. refrigerator liner; 6. freezer liner; 7. refrigeration air duct; 8. freezing air duct; 100. refrigerator frame. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-Figure 4As shown, the first embodiment of the utility model is a duct joint structure, including an air duct joint 2, wherein the air duct joint 2 includes a damper cover 21 and an air guide cover 25, wherein the air guide cover 25 is fixedly connected to the lower end of the damper cover 21 and is provided with a through air guide hole; a foam fixing seat 1 is fixedly installed on the upper part of the air guide cover 25, a plurality of ventilation holes 11 are provided on the upper part of the foam fixing seat 1, a plurality of mounting grooves 12 are provided on the lower part of the foam fixing seat 1, the mounting grooves 12 are communicated with the ventilation holes 11, an electric damper 3 is installed at the mounting grooves 12, and the electric damper 3 is installed on the damper cover 21 through a damper bracket 31, and the inner wall of the damper cover 21 is provided with a supporting step 24 for mounting the damper bracket 31.

[0019] The supporting step 24 is provided to support the installation of the electric damper 3, thereby effectively avoiding the problem in the prior art that the electric damper 3 has no support and its installation position sinks due to interference from factors such as gravity, thereby causing a gap in the installed seal and air leakage.

[0020] In this solution, a raised supporting step 24 is made on the inner circumference of the plastic air duct joint 2 to support the electric damper 3. During the assembly process, gravity and pressing will not cause the electric damper 3 to sink, thereby solving the gap between the electric damper 3 and the foam fixing seat 1 and avoiding air leakage at the bottom after the refrigeration air duct is installed.

[0021] A sealing ring 4 is provided between the damper bracket 31 and the bottom of the mounting groove 12, and between the damper cover 21 and the foam fixing seat 1. The provision of the sealing ring 4 improves the tightness of the connection between the foam fixing seat 1, the air duct joint 2 and the electric damper 3, effectively preventing leakage from gaps in the connection parts, improving the sealing of the air duct joint and preventing leakage.

[0022] The upper end of the damper cover 21 is provided with an upper connecting plate 22 and an upper arc plate 23 for installing the air duct joint 2. The upper connecting plate 22 is provided on one side of the damper cover 21, and is connected to the outside of the refrigerator liner 5 of the refrigerator frame 100 to achieve the installation of the air duct joint 2, and the arc structure of the upper arc plate 23 matches the surface of the refrigerator liner 5, so that the air duct joint 2 is closely attached to the outside of the refrigerator liner 5, improving the tightness of the installation connection between the air duct joint 2 and the refrigerator liner 5, and can effectively prevent air leakage during the installation of the air duct joint 2.

[0023] The lower end of the air guide cover 25 is provided with a lower connecting plate 26 and a lower arc plate 27 for installing the air duct joint 2. The lower connecting plate 26 is provided on one side of the air guide cover 25, and is connected to the outside of the freezer liner 6 of the refrigerator frame 100 to achieve the installation of the air duct joint 2, and the arc structure of the lower arc plate 27 matches the surface of the freezer liner 6, so that the air duct joint 2 is closely attached to the outside of the freezer liner 6, improving the tightness of the installation connection between the air duct joint 2 and the freezer liner 6, and can effectively prevent air leakage during the installation of the air duct joint 2.

[0024] See also Figure 3-Figure 4 As shown, the second embodiment of the utility model provides a refrigerator, which includes a refrigerator frame 100 and the air duct joint structure described in the first embodiment, wherein a refrigerating box liner 5 and a freezing box liner 6 are arranged in the refrigerator frame 100, a refrigerating air duct 7 is arranged on the rear side of the refrigerating box liner 5, and a freezing air duct 8 is arranged on the rear side of the freezing box liner 6, and the air duct joint structure is located between the refrigerating air duct 7 and the freezing air duct 8, and is used to connect the refrigerating air duct 7 and the freezing air duct 8.

[0025] The working principle of the utility model is as follows: the electric damper 3, the foam fixing seat 1 and the air duct joint 2 are assembled, wherein a sealing ring 4 is arranged between the damper bracket 31 and the bottom of the mounting groove 12 and between the damper cover 21 and the foam fixing seat 1. The arrangement of the sealing ring 4 makes the connection tightness between the foam fixing seat 1, the air duct joint 2 and the electric damper 3 better, effectively preventing leakage from gaps in the connection parts, improving the sealing of the air duct joint, and preventing leakage. A raised supporting step 24 is provided on the inner periphery of the air duct joint 2 to support the electric damper 3. During the assembly process, gravity and pressing will not cause the electric damper 3 to sink, thereby solving the gap between the electric damper 3 and the foam fixing seat 1, avoiding air leakage at the bottom after the refrigeration air duct is installed, and the air duct joint is installed between the refrigeration air duct 7 and the freezing air duct 8 to complete the connection between the refrigeration air duct 7 and the freezing air duct 8.

[0026] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An air duct joint structure, characterized in that: The air duct joint (2) comprises an air door cover (21) and an air guide cover (25), wherein the air guide cover (25) is fixedly connected to the lower end of the air door cover (21) and is provided with a through air guide hole; a foam fixing seat (1) is fixedly installed on the upper part of the air guide cover (25), a plurality of ventilation holes (11) are provided on the upper part of the foam fixing seat (1), a plurality of mounting grooves (12) are provided on the lower part of the foam fixing seat (1), the mounting grooves (12) are connected to the ventilation holes (11), an electric air door (3) is installed at the mounting grooves (12), the electric air door (3) is installed on the air door cover (21) through an air door bracket (31), and a supporting step (24) for mounting the air door bracket (31) is provided on the inner wall of the air door cover (21).

2. The air duct joint structure according to claim 1, characterized in that: Sealing rings (4) are provided between the damper bracket (31) and the bottom of the mounting groove (12), and between the damper cover (21) and the foam fixing seat (1).

3. The air duct joint structure according to claim 1, characterized in that: An upper connecting plate (22) and an upper arc plate (23) for mounting an air duct joint (2) are provided at the upper end of the air door cover (21).

4. The air duct joint structure according to claim 1, characterized in that: The lower end of the air guide cover (25) is provided with a lower connecting plate (26) and a lower arc plate (27) for mounting the air duct joint (2).

5. A refrigerator, characterized in that: The invention comprises an air duct joint structure as claimed in any one of claims 1 to 4 and a refrigerator frame (100), wherein a refrigerator liner (5) and a freezer liner (6) are arranged in the refrigerator frame (100), a refrigerating air duct (7) is arranged at the rear side of the refrigerating air duct (5), and a freezing air duct (8) is arranged at the rear side of the freezing air duct (6), and the air duct joint structure is located between the refrigerating air duct (7) and the freezing air duct (8), and is used to connect the refrigerating air duct (7) and the freezing air duct (8).

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