Test apparatus for simulating whole-vehicle working state of heating ventilation case
A technology for testing devices and working conditions, which is applied in vehicle testing, measuring devices, testing of mechanical components, etc., can solve problems such as the difficulty in evaluating HVAC vibration and noise levels, and achieve vibration and noise optimization, simple structure, and low cost Effect
Inactive Publication Date: 2016-03-16
BRILLIANCE AUTO
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Problems solved by technology
[0004] The purpose of the present invention is to provide a test device for simulating the working state of the whole vehicle of the HVAC box, which fundamentally solves the problem that it is difficult to evaluate the vibration and noise level of the HVAC in the early stage of automobile development, and controls the vibration and noise by simulating the working conditions of the real vehicle
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[0024] The following combination Figure 1~4 , the content of the present invention will be described in detail through specific embodiments. The test device for simulating the working state of the whole vehicle of the HVAC box includes a horizontally arranged workbench 13 , an air intake regulator box 2 , an outlet air regulator box 3 , and an air distribution box 8 arranged on the workbench. The inlet and outlet regulator boxes can be an integrated structure spliced by 25mm thick wooden boards, and each board should be fixed with right-angle connectors, and the seams should be sealed with sealant to prevent air leakage through the gaps. The wooden board on the side of the air outlet is detachably installed on the air outlet stabilizing box through the clamp 14. The inlet stabilizing box and the outlet stabilizing box are connected through the orifice plate 5. The orifice plate has three layers, and a number of ventilation holes are evenly distributed on the orifice plate. ...
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The invention discloses a test apparatus for simulating the whole-vehicle working state of a heating ventilation case. The test apparatus comprises a horizontally arranged workbench, and an air inlet voltage stabilization box, an air outlet voltage stabilization box and an airflow distribution box which are arranged on the workbench, and is mainly technically characterized in that the air inlet voltage stabilization box and the air outlet voltage stabilization box are connected through an orifice plate, the air inlet voltage stabilization box is provided with a trumpet-shaped air inlet, the air outlet voltage stabilization box is provided with an air outlet and a pressure gauge which is connected through a connecting pipe for monitoring air pressure in the air outlet voltage stabilization box, the air outlet is connected with the air inlet end of a blower through an air outlet pipe, the air outlet voltage stabilization box is internally provided with a vibration sensor, the airflow distribution box is provided with a microphone I, and a microphone II is arranged on the surface of the volute of the blower; and the air outlet end of the blower is linked to the airflow distribution box, and the airflow distribution box is provided with an air exit. The test apparatus provided by the invention fundamentally solves the problem of difficult evaluation of heating ventilation vibration noise level at the early stage of automobile development and controls vibration noise through simulating a real-vehicle working condition.
Description
technical field [0001] The present invention relates to the field of automobile manufacturing, specifically one A test device for simulating the working state of a HVAC box in a vehicle is mainly suitable for simulating the working state of a HVAC box in a real vehicle, so as to better control the vibration and noise level of the HVAC box in the early stage. Background technique [0002] With the development of society, customers have more and more stringent requirements on driving comfort. Reasonable reduction of vibration and noise in the car is an effective means to improve driving comfort. The HVAC box is located under the main structure of the instrument panel in the cab, and is an important device to control the temperature in the car and improve ride comfort; since the HVAC box and passengers are located inside the cab, controlling the vibration and noise level of the HVAC box is the key to improving driving comfort. effective means. [0003] In the whole vehicle de...
Claims
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Login to view more IPC IPC(8): G01H17/00G01M13/00G01M17/007
CPCG01H17/00G01M13/00G01M17/007
Inventor 刘令波宋鲁涛
Owner BRILLIANCE AUTO
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