HUD Angle-Adjusting Mechanism Using Nested Transmission Rod

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional head-up display (HUD) systems require additional space for adjusting the tilt angle of the reflecting plate, which increases the overall volume of the device.

Innovation Solution

An angle-adjusting mechanism is introduced, comprising a reflecting assembly, a transmission assembly, and a driving unit, where the transmission assembly includes a transmission rod and a connecting element, allowing the reflecting assembly to be moved within the existing space of the HUD without adding extra volume, utilizing a driving unit to adjust the tilt angle of the reflecting plate.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If an adjusting mechanism is employed to adjust the tilt angle of the reflecting plate, then the tilt angle can be adjusted according to user need, but the volume of the HUD increases

Engineering Contradiction:
Improveadjustability of tilt angleVSAvoidvolume of HUD
Core Design Contradiction:
Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The adjusting mechanism is nested within the existing internal space of the HUD device. The transmission rod and connecting element are integrated into the housing structure, with the transmission rod positioned within the housing and the connecting element coupling the transmission rod to the reflecting plate assembly, allowing the mechanism to fit within the existing volume without adding external size

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The adjusting mechanism utilizes the internal three-dimensional space of the HUD housing by positioning the transmission rod along the optical path direction and the connecting element in a lateral position, effectively using space in multiple dimensions within the housing rather than adding volume in a single direction

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS10684473B2Angle-adjusting mechanism of head-up display
Publication Date: 2020.06.16 LITE ON ELECTRONICS (GUANGZHOU) LTD
  • US10684473B2 patent drawing
  • US10684473B2 patent drawing
  • US10684473B2 patent drawing

AI summary

An angle-adjusting mechanism is provided. The angle-adjusting mechanism includes a reflecting assembly, a transmission assembly and a driving unit. The reflecting assembly includes a reflecting plate. The transmission assembly includes a transmission rod and a connecting element disposed on the transmission rod. The transmission assembly is connected to the reflecting assembly via the connecting element. The driving unit is configured to drive the transmission rod to move the reflecting assembly.