Defroster for vehicle

Abstract

A defroster for a vehicle comprises a defrosting duct and a defrosting grid. The defrosting duct has a defrosting auxiliary hole having a diffuser shape, and the defrosting auxiliary hole guides air treated by an air conditioner to discharge towards a lower side of a windshield; and the defrosting grid is disposed over the defrosting duct to form a moving flow path of the air treated by the air conditioner. Besides the defrosting auxiliary hole, discharged flow quantity of the air treated by the air conditioner is ensured via a main hole and a side defrosting hole so as to satisfy relevant regulations of defrosting performance, so that frost on the windshield of the vehicle can be effectively eliminated.

Description

technical field [0001] The present invention relates to a defroster for a vehicle, in particular to a defroster for a vehicle which has a defrosting auxiliary hole in a diffuser shape to effectively remove frost and mist formed on a windshield of a vehicle. Background technique [0002] In order to remove the frost and fog on the front windshield or side front door glass of the vehicle caused by the temperature difference between indoor and outdoor, the vehicle generally has a defrosting device. [0003] For example, if there is fog or moisture on the windshield of the vehicle before the engine is warm-up in winter, start the heater at this time, and use the defrosting duct to release high-temperature air from the main hole to achieve the defrosting effect. [0004] Such as figure 1 As shown, the existing vehicle comprises the anti-vibration pad 2 arranged along the length direction left and right in the front direction of the driver's seat in the car, and the underside of ...

AI Technical Summary

Problems solved by technology

[0007] but if figure 2 As shown, the air flowing in through the defrosting conduit flow path 6 is spouted from the defrosting conduit flow path 6 with a large width through the defrosting auxiliary hole 12 with a small width, so the air flow is not smooth enough.

[0008] and, just figure 2 In the discharge structure shown in which the air is discharged through the defrosting auxiliary hole 12, the air flowing in through the defrosting duct flow path 6 does not flow smoothly to the direction of the main hole 11 and the side defrosting hole 13, but is guided Discharge from the defrost auxiliary hole 12, so it is difficult to meet the regulations related to defrost performance

[0009] Especially, the condition that the air discharged through the defrosting auxiliary hole 12 satisfies the basic performance is to account for 5-10% of the total defrosting air volume, and the defrosting auxiliary hole 12 is formed for this reason, but as figure 2 and Figure 4 As shown, the setting size of the defrosting auxiliary hole 12 is small, so the function of the defrosting auxiliary hole 12 cannot be ensured.

[0010] In addition, there may be quality problems such as whistle and noise at the discharge port of the externally exposed defrosting auxiliary hole 12.

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