HVAC Housing Alignment Structure for Single-Screw Assembly
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Solution Overview
Problem
Existing HVAC units for vehicles face challenges in efficiently assembling and securing the various housing components, leading to potential misalignment and increased assembly time.
Innovation Solution
A housing design for HVAC units that includes a first and second housing part with fixation components, a divider wall with an aligning component, and a collar and locator pin configuration, allowing for direct alignment and secure fixation of the components using a single screw.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple housing components are assembled together using conventional fixation methods, then the housing structure can be formed, but misalignment and increased assembly time occur
Solution Approach 1:
The aligning component is integrated into the divider wall before assembly, pre-establishing the alignment reference. The locator pin on the first housing part is designed to fit into the aligning component, ensuring automatic alignment before the final fixation step, thus eliminating the need for separate alignment operations during assembly
Solution Approach 2:
The aligning component acts as an intermediary element between the divider wall and the first housing part. It provides a mechanical interface that guides the locator pin into the correct position, mediating the alignment between two components that would otherwise be difficult to align precisely
2Strength
If multiple screws are used to fix housing components, then secure connection is achieved, but assembly complexity and time increase
Solution Approach 1:
The aligning component and fixation component are merged into a single integrated structure on the divider wall. The collar that receives the locator pin also serves as the fixation point for the single screw, combining alignment and fixation functions into one element, thus reducing the number of separate fixation operations needed
Solution Approach 2:
The aligning component on the divider wall serves multiple functions: it aligns the first housing part with the divider wall, provides a reference for the locator pin, and acts as the fixation point for the single screw. This multi-functionality reduces the overall complexity of the fixation system
Data Source
AI summary
A housing for an HVAC unit, including: a first housing part with a first fixation component, a second housing part with a second fixation component, a divider wall arranged between the first housing part and the second housing part, configured to at least partly divide the housing into a first side and a second side, so that the first housing part, the divider wall and the second housing part are stacked in a stacking direction. The first housing part is fixed directly to the second housing part. The divider wall includes an aligning component configured to align the first fixation component so that the first housing part is aligned with the divider wall before the first fixation component is connected with the second fixation component.