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Air conditioner air port noise reduction structure

A technology for tuyere and air conditioning, which is applied in noise suppression, air handling equipment, heating/cooling equipment, etc. It can solve problems such as increased return air resistance at the return air outlet, and achieve the effect of reducing radiation

Pending Publication Date: 2019-05-07
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a noise-reducing structure for the air-conditioning outlet, which solves the problem that the return air grille of the air-conditioning in the prior art will increase the return air resistance at the return air outlet

Method used

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  • Air conditioner air port noise reduction structure
  • Air conditioner air port noise reduction structure
  • Air conditioner air port noise reduction structure

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Experimental program
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Effect test

Embodiment 8

[0049] Embodiment 8 of the noise reduction structure of the air conditioner air outlet of the present invention differs from Embodiment 1 in that there is no interval between the top of the car body and the fan assembly, installation grooves are provided at the air outlet and return air outlet, and the closed frame is installed in the mounting slot.

Embodiment 9

[0050] Embodiment 9 of the air-conditioning outlet noise reduction structure of the present invention differs from Embodiment 1 in that the closed frame extends downwards into the air return port and the air outlet of the vehicle body.

[0051] Embodiment 10 of the air-conditioning outlet noise reduction structure of the present invention is different from Embodiment 1 in that the vibration isolation layer is a rubber gasket arranged between the connecting pipeline and the pipeline perforation.

[0052] Embodiment 11 of the air-conditioning outlet noise reduction structure of the present invention differs from Embodiment 1 in that the partition is made of sound-insulating material.

[0053] In other embodiments, the muffler may also be other forms of muffler, for example, a resistive muffler or a composite muffler.

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Abstract

The invention relates to an air conditioner air port noise reduction structure. The air conditioner air port noise reduction structure comprises a vehicle body and a draught fan assembly arranged on the outer side of the top of the vehicle body, the vehicle body is provided with an air return port, an air outlet, and a closed frame body between the draught fan assembly and the corresponding air outlet and / or between the draught fan assembly and the corresponding air return port, the closed frame body is made of a sound absorption material, and the closed frame body forms an airflow channel. The closed frame body is arranged between the draught fan assembly and the air outlet and / or between the fan assembly and the air return port of the air conditioner air port noise reduction structure, so that not only is the sealing effect achieved, but also the influence on airflow resistance at the air outlet and / or the air return port is small. The closed frame body is made of the sound absorption material, the sound absorption material can absorb noise generated by the draught fan assembly, and radiation of the noise generated by the draught fan assembly to the interior of a compartment is reduced.

Description

technical field [0001] The invention relates to a noise-reducing structure for an air-conditioning outlet. Background technique [0002] The air-conditioning system of a passenger car mainly includes a compressor, a high-pressure medium pipe, an air-conditioning pan, and an air-conditioning duct. The air-conditioning pan is equipped with a fan assembly, which includes a condenser fan and an evaporator fan. After the air-conditioning system on the bus is turned on, the air-conditioning compressor and the fan assembly will generate a lot of vibration and noise during operation, resulting in uncomfortable rides in the compartment and complaints from passengers. [0003] The Chinese utility model patent whose announcement number is CN204880604U and whose announcement date is December 16, 2015 discloses a noise-reducing air return grille of a passenger car air conditioner. The bottom frame 29 is fixed on the frame of the bus body, and the bottom frame 29 is movably connected wit...

Claims

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Application Information

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IPC IPC(8): B60H1/34F24F13/24
Inventor 穆浩谢富科李有哲郜盼盼郑灏
Owner ZHENGZHOU YUTONG BUS CO LTD
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