Infrared-Transmitting Housing With Integrated Light Shielding
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Solution Overview
Problem
Existing infrared positioning handles suffer from light interference issues due to the lack of precise positioning and stability of light-shielding components, limiting their use in environments with strong light and affecting user experience.
Innovation Solution
An infrared-transmitting housing with a light-shielding member integrally formed by two-shot injection molding, featuring anti-collision bumps and a positioning structure, ensuring precise alignment and stability against external light interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a light-shielding cover is directly sleeved outside the infrared-transmitting plastic material, then light shielding capability is improved, but positioning precision deteriorates causing the cover to move during use
Solution Approach 1:
The patent merges the light-shielding cover and infrared-transmitting housing into a single integrated component formed by two-shot injection molding. This combining eliminates the positioning errors and movement issues that occur with separate assembled parts, while maintaining both light shielding and infrared transmission functions through different material zones within the unified structure.
Solution Approach 2:
The patent employs composite materials by using two-shot injection molding to create a housing with distinct material zones: an outer light-shielding material (first shot) and an inner infrared-transmitting material (second shot). This composite structure enables simultaneous light blocking and infrared transmission without requiring separate components, resolving the positioning precision issue.
2Object-affected harmful factors
If separate light-shielding cover and infrared-transmitting housing are used, then light shielding function is achieved, but assembly complexity and stability deteriorate
Solution Approach 1:
The patent combines multiple functional components (light-shielding cover and infrared-transmitting housing) into a single integrated part through two-shot injection molding. This eliminates the need for separate assembly steps, reduces part count, and improves manufacturing efficiency while maintaining all required functions.
Solution Approach 2:
The integrated housing serves multiple functions simultaneously: light shielding, infrared transmission, and structural support. By combining these functions into one component formed by two-shot injection molding, the patent reduces assembly complexity while achieving all necessary performance requirements.
3Ease of manufacture
If no positioning structure is provided, then manufacturing simplicity is maintained, but positioning accuracy of infrared lamp deteriorates
Solution Approach 1:
The patent incorporates positioning structures (such as positioning protrusions and grooves) directly into the molded housing during the two-shot injection process. This preliminary formation of positioning features ensures accurate infrared lamp placement is built into the manufacturing process itself, eliminating the need for separate positioning adjustments while maintaining manufacturing efficiency.
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 provides stable, precise positioning and effective light shielding, preventing displacement and device damage, enhancing user experience and assembly convenience.
Implementation Method 1
the first housing and the second housing are integrally formed by a two-shot injection
Data Source
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Figure 3
AI summary
Some embodiments of the present disclosure provide an infrared-transmitting housing for preventing light interference and an infrared positioning handle. The infrared-transmitting housing for preventing light interference includes a first housing and a second housing disposed on an outer side of the first housing, wherein the first housing is an infrared-transmitting member and the second housing is a light-shielding member; the second housing is provided with a via corresponding to a position of an infrared lamp of an external device; and the first housing and the second housing are integrally formed by a two-shot injection molding. A use of the above some embodiments can ensure a precise position of the through hole and prevent the housing from moving to affect the user experience.