Novel noise-reduction breathable rear air duct of auxiliary instrument panel

Abstract

The utility model aims to provide the novel noise-reducing and ventilating rear air duct of the auxiliary instrument panel, so that the noise-reducing function is met, certain water absorption and air permeability can be kept, and the problem that the air circulation is influenced due to residual condensate water in the original air duct of an air conditioner is solved. Wherein the PE-HD air duct body is connected with the PES noise reduction upper sealing piece through the ultrasonic welding technology, the PE-HD air duct body is connected with the PES noise reduction lower sealing piece through the ultrasonic welding technology, the PE-HD air duct body is connected with the PE-HD front air duct in a clamped mode, and a connector is sealed through the rubber sealing ring. The air duct has the advantages that the PE-HD material is used as the main body raw material, then the PES sealing pieces are used for secondary assembly to form the complete air duct, the advantages of air permeability, water absorption and light weight of the PES material can be played, the price of the PES material is reduced compared with that of the PE-HD material, and therefore light weight and noise reduction can be guaranteed, and meanwhile the air duct is convenient to assemble. And the proper strength requirement can be ensured, so that the water absorption and ventilation effects are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile fittings, in particular to a novel noise-reducing and ventilating rear air duct of a secondary instrument panel. Background Art

[0002] Currently, most automotive interior sub-dashboard air ducts are made of a single, one-piece blow-molded PE-HD material. These materials lack water absorption and ventilation capabilities. When the car's air conditioner is operating for extended periods, the air inside and outside the vehicle circulates for extended periods, and condensation accumulates within the ducts, leaving them vulnerable to poor ventilation and excessive load on the air conditioner's cooling and heating systems, indirectly impacting fuel efficiency and other environmental issues. Therefore, it is necessary to develop a lightweight, vibration-free air duct that absorbs wind noise while also improving air permeability and absorbing condensation. Utility Model Content

[0003] The purpose of the utility model is to provide a new type of noise-reducing and breathable rear air duct of the auxiliary instrument panel, which meets the noise reduction function while maintaining a certain water absorption and air permeability, and solves the problem of residual condensed water in the original air-conditioning duct affecting air circulation.

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] A novel noise-reducing and breathable rear air duct for a sub-instrument panel comprises: a PE-HD air duct body 1, a PES noise-reducing upper sealing sheet 2, a PES noise-reducing lower sealing sheet 3, a PE-HD front air duct 4, and a rubber sealing ring 5. The PE-HD air duct body 1 is connected to the PES noise-reducing upper sealing sheet 2 by an ultrasonic welding process, the PE-HD air duct body 1 is connected to the PES noise-reducing lower sealing sheet 3 by an ultrasonic welding process, the PE-HD air duct body 1 and the PE-HD front air duct 4 are snap-connected, and the interface is sealed with a rubber sealing ring 5.

[0006] The PE-HD of the PE-HD air duct body 1 is a blow-molded air duct body as the main body of the noise reduction material;

[0007] The PES noise reduction upper sealing sheet 2 and the PES noise reduction lower sealing sheet are made of PES material, wherein the PES material properties must be guaranteed to be 600g / m 2 Only in this way can the noise reduction function be achieved while ensuring sufficient quality and strength;

[0008] The PE-HD of the PE-HD front air duct 4 is an integrated air duct assembly processed by injection molding equipment using a blow molding process;

[0009] The rubber sealing ring 5 is a sealing ring made of a tough rubber material mold;

[0010] The PE-HD air duct body 1, the PES noise reduction upper sealing sheet 2, and the PES noise reduction lower sealing sheet 3 constitute the rear air duct;

[0011] The noise-reducing and breathable rear air duct of the auxiliary instrument panel is welded into one piece by a PES noise-reducing upper sealing piece 2, a PES noise-reducing lower sealing piece 3 and a PE-HD air duct body 1 to achieve a sealing effect and avoid the risk of air leakage caused by other processes, such as self-adhesive reinforcement methods. Finally, it is connected to the PE-HD front air duct 4 interface and sealed with a rubber sealing ring 5 to ensure that energy loss and air leakage noise are avoided during the overlapping and transmission process at the front and rear lane interfaces.

[0012] The advantages and positive effects of the utility model are:

[0013] Compared with the general air duct made of a single material of PE-HD that is injection-molded in one piece, the structure of the utility model divides an originally long air duct into two. The PE-HD air duct body that is farther away from the human body maintains the original design and manufacturing method, maintaining strength while saving costs. In the air duct area close to the human body, PE-HD material is used as the main body raw material, and then a PES sealing sheet is used for secondary assembly to form a complete air duct, which can give full play to the advantages of the PES material's inherent properties of breathability, water absorption and light weight. In addition, the price of PES material will also be lower than that of PE-HD material, thereby ensuring light weight and noise reduction while meeting appropriate strength requirements and further ensuring the water absorption and breathability functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a new type of noise-reducing and ventilated rear air duct on the auxiliary instrument panel;

[0015] Figure 2 This is a schematic diagram of the structure of the PE-HD front air duct 4;

[0016] Figure 3 This is a top view of the PE-HD air duct body 1 and the PES noise reduction upper sealing sheet 2;

[0017] Figure 4 This is a schematic diagram of the structure of the PE-HD air duct body 1 and the PES noise reduction upper sealing sheet 2;

[0018] Figure 5 This is an exploded view of the rear air duct;

[0019] Figure 6 It is a structural diagram of the rubber sealing ring 5;

[0020] Among them, 1-PE-HD air duct body, 2-PES noise reduction upper sealing piece, 3-PES noise reduction lower sealing piece, 4-PE-HD front air duct, 5-rubber sealing ring. DETAILED DESCRIPTION

[0021] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0022] 1. See Figure 1-Figure 5 In this specific embodiment, a new type of noise-reducing and breathable rear air duct of the auxiliary instrument panel is composed of: a PE-HD air duct body 1, a PES noise-reducing upper sealing sheet 2, a PES noise-reducing lower sealing sheet 3, a PE-HD front air duct 4, and a rubber sealing ring 5. The PE-HD air duct body 1 is connected to the PES noise-reducing upper sealing sheet 2 by an ultrasonic welding process, the PE-HD air duct body 1 is connected to the PES noise-reducing lower sealing sheet 3 by an ultrasonic welding process, the PE-HD air duct body 1 and the PE-HD front air duct 4 are snap-connected, and the interface is sealed with a rubber sealing ring 5.

[0023] The PE-HD of the PE-HD air duct body 1 is a blow-molded air duct body as the main body of the noise reduction material;

[0024] The PES noise reduction upper sealing sheet 2 and the PES noise reduction lower sealing sheet are made of PES material, wherein the PES material properties must be guaranteed to be 600g / m 2 Only in this way can the noise reduction function be achieved while ensuring sufficient quality and strength;

[0025] The PE-HD of the PE-HD front air duct 4 is an integrated air duct assembly processed by injection molding equipment using a blow molding process;

[0026] The rubber sealing ring 5 is a sealing ring made of a tough rubber material mold;

[0027] The PE-HD air duct body 1, the PES noise reduction upper sealing sheet 2, and the PES noise reduction lower sealing sheet 3 constitute the rear air duct;

[0028] The noise-reducing and breathable rear air duct of the auxiliary instrument panel is welded into one piece by a PES noise-reducing upper sealing piece 2, a PES noise-reducing lower sealing piece 3 and a PE-HD air duct body 1 to achieve a sealing effect and avoid the risk of air leakage caused by other processes, such as self-adhesive reinforcement methods. Finally, it is connected to the PE-HD front air duct 4 interface and sealed with a rubber sealing ring 5 to ensure that energy loss and air leakage noise are avoided during the overlapping and transmission process at the front and rear lane interfaces.

[0029] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation methods. Any other implementation methods derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A new type of noise-reducing and breathable rear air duct for the auxiliary instrument panel, characterized by It consists of a PE-HD air duct body (1), a PES noise reduction upper sealing sheet (2), a PES noise reduction lower sealing sheet (3), a PE-HD front air duct (4), and a rubber sealing ring (5). The PE-HD air duct body (1) and the PES noise reduction upper sealing sheet (2) are connected by an ultrasonic welding process, the PE-HD air duct body (1) and the PES noise reduction lower sealing sheet (3) are connected by an ultrasonic welding process, the PE-HD air duct body (1) and the PE-HD front air duct (4) are connected by snap-fitting, and the interface is sealed with a rubber sealing ring (5).

2. A novel noise-reducing and breathable rear air duct for a sub-instrument panel according to claim 1, characterized in that The PE-HD of the PE-HD air duct body (1) is a body of the noise reduction material, and the air duct is formed by a blow molding process.

3. The novel noise-reducing and breathable rear air duct of the auxiliary instrument panel according to claim 1 is characterized in that The PES noise reduction upper sealing sheet (2) and the PES noise reduction lower sealing sheet are made of PES material, wherein the PES material properties must be guaranteed to be 600g / m 2 Only in this way can the noise reduction function be achieved while ensuring sufficient quality and strength.

4. The novel noise-reducing and breathable rear air duct of the auxiliary instrument panel according to claim 1 is characterized in that The PE-HD of the PE-HD front air duct (4) is an integrated air duct assembly processed by injection molding equipment using a blow molding process.

5. The novel noise-reducing and breathable rear air duct of the auxiliary instrument panel according to claim 1 is characterized in that The rubber sealing ring (5) is a sealing ring made by processing a tough rubber material mold.

6. The novel noise-reducing and breathable rear air duct of the auxiliary instrument panel according to claim 1 is characterized in that The PE-HD air duct body (1), the PES noise reduction upper sealing sheet (2), and the PES noise reduction lower sealing sheet (3) constitute the rear air duct.

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