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A carpet assembly with a load-carrying air duct and a production method for an air duct under the carpet

A production method and air duct technology, applied in the field of automotive parts, to achieve the effects of light weight, good shape fit, and improved rigidity and bearing capacity

Active Publication Date: 2017-03-08
湖北三环汽车工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires the air duct to have good adhesion to the carpet, better rigidity, shape fit and dimensional stability. It is obviously difficult for parts manufactured by blow molding to meet such requirements, and new structural types and molding process to manufacture such air ducts

Method used

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  • A carpet assembly with a load-carrying air duct and a production method for an air duct under the carpet
  • A carpet assembly with a load-carrying air duct and a production method for an air duct under the carpet
  • A carpet assembly with a load-carrying air duct and a production method for an air duct under the carpet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Produces a certain model of Dongfeng Infiniti car carpet down duct, the overall dimensions of the duct: length * width * thickness: 732mm*654mm*545mm.

[0034] 1. Raw material preparation: According to the consumption quota requirements of the product, the raw materials are cut into raw material sheets of a predetermined size. The surface weight of PET non-woven fabric layer per unit area is 80g / m 2 , The inner polypropylene layer has a unit area weight of 1000g / m 2 . The total thickness of the material is 1.1mm. Tensile elongation at break is 180%.

[0035] 2. Raw material baking: The raw materials are baked simultaneously by double-sided radiant heating. The PET non-woven fabric layer is radiantly heated by the upper heating plate. The heating temperature: 180℃, the heating time is 40s; the polypropylene layer is radiantly heated by the lower heating plate. , Heating temperature: 220℃, heating time 20s. The polypropylene layer is placed on the Teflon conveyor belt.

[00...

Embodiment 2

[0046] Produces a certain model of Dongfeng passenger car carpet down duct, the overall dimensions of the duct: length * width * thickness: 712mm*422mm*380mm.

[0047] 1. Raw material preparation: According to the consumption quota requirements of the product, the raw materials are cut into raw material sheets of a predetermined size. The surface weight of PET non-woven fabric layer per unit area is 200g / m 2 , The inner polypropylene layer has a unit area weight of 2000g / m 2 , The total thickness of the material is 2.0mm. Tensile elongation at break is 196%.

[0048] 2. Raw material baking: The raw materials are baked simultaneously by double-sided radiant heating. The PET non-woven fabric layer is radiantly heated by the upper heating plate. The heating temperature: 260℃, the heating time is 20s; the polypropylene layer is radiantly heated by the lower heating plate. , Heating temperature: 140℃, heating time 40s.

[0049] 3. Hot pressing and cutting: The heated sheet is placed on ...

Embodiment 3

[0059] Such as figure 1 , image 3 As shown, a carpet assembly with a load-bearing duct includes a carpet layer 1 and a duct sub-assembly 2. There are two air duct sub-assemblies 2, which are located in the lower part of carpet layer 1, and are symmetrically distributed on both sides of the center line of carpet layer 1. The carpet layer 1 is composed of three layers of materials. The carpet surface layer 1.1 is a PET needle-punched carpet layer for decoration and wear resistance; the middle layer of the carpet 1.2 is a polyurethane foam layer for shaping and anti-permeability; the carpet bottom layer 1.3 It is a polypropylene layer, which is adhesive after heating. The back of the carpet layer 1 is designed with a groove matching the upper part 2.1 of the air pipe, which is bonded to the surface layer 2.8 of the air pipe material of the upper part 2.1 of the air pipe by hot pressing. The air inlet 2.5 of the air duct sub-assembly 2 is clampedly connected to the air outlet pi...

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Abstract

The invention discloses a floor mat assembly with a carrying air pipe. The floor mat assembly comprises a floor mat layer and an air pipe sub-assembly, wherein the air pipe sub-assembly comprises an air pipe upper part and an air pipe lower part; the air pipe lower part and the air pipe lower part comprise PET (Polyethylene Terephthalate) non-woven fabric layers and polypropylene layers; the polypropylene layers of the air pipe upper part and the air pipe lower part are connected towards each other and construct an air passage; the PET non-woven fabric layer on the air pipe upper part is connected with the bottom of the floor mat layer. The invention further discloses a production method for an air pipe in the floor mat assembly. The method comprises the following steps: preparing raw materials, baking the raw materials; performing hot pressing and cutting; welding with ultrasonic waves. A hot-press process is adopted for pressing, and the air pipe under the floor mat is subjected to splice welding in two layers, so that a complex structure can be designed, the manufacturability is high, the weight is light, the size stability is high, a reinforcing support bump can be designed conveniently, and the rigidity and carrying force of integral parts are enhanced. The surface layer of the air pipe and the floor mat can be molded by integrally by hot pressing. The inner layer of the air pipe can be used for lowering the air current resistance, and the noise is low.

Description

Technical field [0001] The invention relates to the field of vehicle parts, in particular to a carpet assembly with a load-bearing air duct, and also relates to a production method of a carpet under-air duct. Suitable for air conditioning and ventilation in cars. Background technique [0002] As consumers demand higher and higher car comfort, more and more cars are equipped with rear exhaust vents. In order to guide the air from the front row of air conditioners to the rear row, the air duct is an indispensable part. [0003] The air duct can pass through the auxiliary instrument panel area in the middle of the passenger compartment. However, due to special technical requirements such as thermal management, fluid noise, etc., there are restrictions on the shape of the air duct, the amount of air output, and the direction of the air flow. The sub-instrument panel has a compact area and many electronic components, which cannot provide a satisfactory installation environment. It is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60N3/04B32B27/36B32B27/32B32B27/06B32B27/08
CPCB32B27/06B32B27/08B32B27/32B32B27/36B60N3/042
Inventor 龙踏青张志龙田光胜司旭仓
Owner 湖北三环汽车工程塑料有限公司
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