Structured Light Module Fastening Element for Positioning Stability
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Solution Overview
Problem
The existing structured light modules, particularly those with laser diodes in mobile electronic devices, face issues with positioning stability due to mechanical shocks and increased assembling complexity, which affects heat dissipation and lighting efficacy.
Innovation Solution
Incorporating a fastening element connected to the housing and circuit board, which engages with a frame to maintain positional stability and includes a heat-dissipating plate for efficient thermal management, reducing assembly complexity and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the circuit board is used to position the laser diode, then the laser diode can be electrically connected and positioned, but the positioning stability deteriorates after mechanical shocks and drops
Solution Approach 1:
The patent introduces a separate fastening element that is independent from the circuit board, dividing the positioning function from the electrical connection function. The fastening element specifically handles mechanical positioning and shock absorption, while the circuit board maintains electrical connections, resolving the contradiction between electrical connectivity and mechanical stability.
Solution Approach 2:
The fastening element acts as an intermediary component between the structured light module and the frame. It absorbs mechanical shocks and maintains the relative position, protecting the circuit board and laser diode from direct mechanical stress while ensuring stable positioning.
2Temperature
If the circuit board positions the laser diode, then electrical connection is achieved, but the heat dissipating efficacy deteriorates when the circuit board shifts
Solution Approach 1:
The patent separates the heat dissipation function from the circuit board by introducing a dedicated heat dissipation component attached to the fastening element. This ensures that heat dissipation remains effective even when the circuit board position changes, as the heat dissipation path is independently maintained by the fastening element.
3Ease of manufacture
If the laser diode is installed and aligned with the lens unit separately, then the structured light pattern can be generated, but the assembling complexity and time increase
Solution Approach 1:
The patent combines the laser diode, lens unit, and fastening element into an integrated structured light module assembly. This pre-assembly approach allows the entire module to be installed as a single unit, eliminating the need for separate alignment operations and significantly reducing assembly complexity and time.
Solution Approach 2:
The lens unit and fastening element are pre-assembled with the laser diode in the correct relative positions before installation into the device. This preliminary assembly ensures proper alignment is maintained during final installation, eliminating time-consuming on-site alignment procedures.
4Reliability
If the circuit board is fixed on the mobile electronic device, then electrical connection is established, but the positioning stability deteriorates under impact and shock
Solution Approach 1:
The fastening element is designed with shock-absorbing characteristics and is installed beforehand to protect the circuit board and laser diode from mechanical impacts. It provides a cushioning effect that maintains positioning stability even when the device is dropped or subjected to external forces.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution ensures stable positioning and enhanced heat dissipation, reducing assembly time and labor costs while maintaining lighting efficacy even after exposure to mechanical stress.
Implementation Method 1
The light-emitting unit is disposed on the circuit board and emits plural light beams. After the plural light beams pass through the lens unit, a structured light is generated and outputted.
Implementation Method 2
the heat dissipating mechanism or the heat dissipating path of the laser diode structured light module is possibly deviated
Data Source
AI summary
A structured light module is combinable with a frame. The structured light module includes a housing, a light-emitting unit, at least one corresponding optical element, a circuit board, and at least one fastening element. The light-emitting unit is disposed on the circuit board and accommodated within the housing. The at least one fastening element is connected with one of the housing and the circuit board. When the at least one fastening element is combined with a frame, the structured light module is positioned on the frame.