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Air inlet housing for heating ventilation air conditioning (HVAC) unit

A technology of air inlet and housing, applied in the field of inlet housing, can solve the problem of not being able to completely reduce noise

Active Publication Date: 2021-06-29
VALEO AUTOMOTIVE AIR CONDITIONING HUBEI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a solution cannot completely reduce the noise generated due to the blower blades

Method used

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  • Air inlet housing for heating ventilation air conditioning (HVAC) unit
  • Air inlet housing for heating ventilation air conditioning (HVAC) unit
  • Air inlet housing for heating ventilation air conditioning (HVAC) unit

Examples

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Embodiment Construction

[0026] It should be noted that the accompanying drawings disclose the invention in sufficient detail to carry it out and, if necessary, help to better define the invention. However, the present invention should not be limited to the embodiments disclosed in the specification.

[0027] The present invention relates to an air inlet housing of a heating ventilation air conditioning (HVAC) unit (hereinafter referred to as HVAC unit) having at least one resonator to mitigate blade passing frequency noise, hereinafter referred to as blade passing frequency (BPF) noise. At least one resonator is disposed on a space defined in the air inlet passage, the space being adapted to accommodate a blower. Typically, the blower is adapted to draw airflow from the air inlet channel through an air filter. When the airflow hits the blades of the blower, an unwanted noise is produced, commonly referred to as BPF noise. In order to avoid / reduce BPF noise, at least one resonator is arranged at the...

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PUM

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Abstract

The invention provides a heating ventilation air-conditioning air inlet housing which is provided with a space for accommodating a blower. The HVAC air inlet housing includes at least one resonator formed on an inner periphery of a space provided in the air inlet housing to reduce noise generated by the blower. Further, at least one resonator is arranged upstream of the space in which the blower is housed.

Description

technical field [0001] The present invention relates generally to an inlet housing and, more particularly, to an air inlet housing having a resonator for use in a heating ventilation air conditioning (HVAC) unit to reduce resonance noise. Background technique [0002] Typically, a Heating Ventilation Air Conditioning (HVAC) unit is provided in a vehicle to provide a comfortable driving experience for passengers. An HVAC unit may include a number of components, such as evaporators, heater cores, blowers, and the like. These components are housed in the HVAC enclosure / casing. The blower allows airflow through the evaporator and heater core to provide hot or cool air to the cabin. A blower may be provided in the entryway to receive air from outside the vehicle and blow it over the evaporator and heater core as needed. Air flow may be introduced from the air inlet duct and pass through an air filter disposed in the channel. As the airflow enters the housing, unwanted noise i...

Claims

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Application Information

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IPC IPC(8): B60H1/00
CPCB60H1/00514B60H1/00507B60H2001/006F04D29/4213F04D29/665B60H1/00021B60H2001/00085B60H1/00471
Inventor 周明刘林波邹显扬
Owner VALEO AUTOMOTIVE AIR CONDITIONING HUBEI CO LTD