前风挡除霜口设计

  • 格式:pdf
  • 大小:193.72 KB
  • 文档页数:15

Group 1-4 Defroster Nozzle Design & AttachmentPage 1 of 15http://hub.visteon.com/ccs_quality/ccodpm/airhandling/1-4.html2003-9-30DPM Group 1-4 Defroster Nozzle Design & Attachment (Rev. 9/96) 

Engineering Specification Browser 

1-4-1 INTRODUCTIONl1-4-1.1 Section Overview 1-4-2 APPLICATIONS

1-4-3 DESIGN GUIDELINESl1-4-3.1 Performance l1-4-3.2 Standard for Conventional Nozzle 

¡Figure 1 - Defroster Pattern Clearance Zones 

¡Figure 2a - Defroster Nozzle Design and Attachment (Lateral) 

¡Figure 2b - Defroster Nozzle Design and Attachment (Longitudinal)

l1-4-3.3 Defroster Nozzle Assembly 

¡Figure 3 - Defroster Nozzle Design and Attachment 

¡Figure 4 - Pencil Picks and Vanes 

l1-4-3.4 Nozzle Opening Protection 

l1-4-3.5 Defroster Environmental Test 

¡Figure 5 - Tongue and Groove/Tongue and Groove With Heat Stakes 

¡Figure 6 - Tongue and Groove/Tongue and Groove With Heat Stakes(Cont.) 

¡Figure 7 - Tongue and Groove With Snap Tabs/Tongue and Groove WithRetention Rib 

¡Figure 8 - Tongue and Groove With Snap Tabs/Tongue and Groove WithRetention Rib (Cont.) 

¡Figure 9 - Flange With Heat Stake Pins 

¡Figure 10 - Tongue and Groove With Alignment Rib 

Return to Design/Process Manual Menu 

1-4-1 INTRODUCTION1-4-1.1 Section OverviewThese guidelines establish requirements for defroster nozzles. They are to be used during the engineering, design and packaging of defrost nozzles. 

Back to 1-4 Defroster Nozzle Design and Attachment Outline Group 1-4 Defroster Nozzle Design & AttachmentPage 2 of 15http://hub.visteon.com/ccs_quality/ccodpm/airhandling/1-4.html2003-9-30Return to Design/Process Manual Menu 1-4-2 APPLICATIONSThe guidelines are applicable to all car and truck vehicles equipped with heating and/or A/C systems. 

Back to 1-4 Defroster Nozzle Design and Attachment Outline Return to Design/Process Manual Menu 

1-4-3 DESIGN GUIDELINESAll vehicles equipped with heating and/or A/C systems shall have defroster nozzle assemblies designed to the following requirements. 

Back to 1-4 Defroster Nozzle Design and Attachment Outline Return to Design/Process Manual Menu 

1-4-3.1 PerformanceDefroster nozzle design and attachment must meet Worldwide Product Acceptance Specifications (WPAS) 12.02-C and WPAS 12.02-C-EAO, Federal Motor Vehicle Safety Standards (FMVSS)103, and conform to Society of Automotive Engineers (SAE) J902 (Car) and SAE J382 (Truck). See figure 1. 

Back to 1-4 Defroster Nozzle Design and Attachment Outline Return to Design/Process Manual Menu 

1-4-3.2 Standard for Conventional NozzleA. Nozzle Location - Lateral (See figure 2a.) For two nozzle openings, the inboard end of each nozzle opening shall be located as close to the centerline of the vehicle as possible. 

If three nozzle openings are used, one opening shall be centered at about the centerline of the vehicle. The inboard end of each of the other two openings shall be at a 50 to 75 mm range from the outboard ends of the center opening. 

If five nozzle openings are required, one opening shall be centered at about Group 1-4 Defroster Nozzle Design & AttachmentPage 3 of 15http://hub.visteon.com/ccs_quality/ccodpm/airhandling/1-4.html2003-9-30the centerline of the vehicle. The inboard end of each of the openings shall be at a 50 to 75 mm range from the outboard edge of the nearest nozzle opening. 

Figure 1 (des1370a.gif) - Defroster Pattern Clearance Zones Group 1-4 Defroster Nozzle Design & AttachmentPage 4 of 15

http://hub.visteon.com/ccs_quality/ccodpm/airhandling/1-4.html2003-9-30Figure 2a (des1371a.gif) - Defroster Nozzle Design and Attachment (Lateral) Group 1-4 Defroster Nozzle Design & AttachmentPage 5 of 15

http://hub.visteon.com/ccs_quality/ccodpm/airhandling/1-4.html2003-9-30Figure 2b (des1510a.gif) - Defroster Nozzle Design and Attachment (Longitudinal) 

B. Nozzle Location and Orientation - Longitudinal (figure 2a and 2b) The location and orientation can be determined by the following procedure: 1. Set up the rearmost manikin H-point using the two-dimensional manikin reference in Worldwide Design Requirements REF-D02 and D03 (1989 Oct. 31). 

2. Set up the 95th percentile tangential cutoff two-dimensional eyellipse using the passenger car driver's eye range reference in Worldwide Requirements REF-D07 (1989 Oct. 31). 

3. Establish a plane which is tangent to the lower side of the eye range contour and down angle (alpha) to horizontal. Define the defroster air jet intersection point with windshield by intersecting the above down angle plane with the windshield vertical section at the plan view reference line (ref. SAE J902). The down angle (alpha) can be determined by the following table: