Coaxial Damper Support Layout for Accurate Air-Conditioning Modules
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Solution Overview
Problem
Existing air-conditioning modules in automobiles suffer from low movement accuracy of dampers due to their coaxial arrangement, leading to interference and noise during rotation.
Innovation Solution
The air-conditioning module design features a housing with separate support portions for each damper, allowing them to rotate independently without interference, and includes a radial gap and anti-misalignment teeth to enhance accuracy and prevent incorrect installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If multiple dampers are arranged coaxially in the housing, then the structure is compact, but the movement accuracy of the dampers is low due to rotation interference
Solution Approach 1:
The housing is segmented into multiple independent support portions (first support portion, second support portion, etc.), each supporting a specific damper. This segmentation allows each damper to rotate independently around the common axis without interfering with others, while still maintaining the coaxial compact structure. The support portions are positioned at different angular locations around the axis, creating spatial separation that prevents rotation interference.
2Device complexity
If dampers are supported by a common rotating mechanism, then the structure is simplified, but noise is generated due to rotation interference between dampers
Solution Approach 1:
The support mechanism is segmented into multiple independent support portions rather than using a single common support. Each support portion independently supports one or more dampers, allowing them to rotate without mechanical interference. This segmentation eliminates the noise generated by dampers colliding or interfering with each other during rotation, while still maintaining a relatively simple overall structure.
3Volume of stationary object
If dampers are arranged coaxially to save space, then the housing volume is reduced, but the dampers interfere with each other during rotation
Solution Approach 1:
The housing internal space is segmented into multiple support portions arranged at different angular positions around the rotation axis. Each support portion provides an independent mounting location for dampers, allowing coaxial arrangement while preventing rotational interference. This segmentation enables reliable damper operation within a compact housing volume.
Solution Approach 2:
The problem of radial interference between coaxial dampers is solved by utilizing the angular dimension. Support portions are positioned at different angular locations around the axis, creating spatial separation in the tangential direction. This dimensional approach allows dampers to share the same radial space without interfering with each other's rotation, maintaining compactness while ensuring reliable operation.
Data Source
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AI summary
An air-conditioning module, comprising: a housing (1), and a first damper (2) and a second damper (3), which are arranged in the housing (1), wherein the first damper (2) and the second damper (3) are arranged sharing an axis of rotation (X-X); the housing (1) has a first support portion (11) and a second support portion (12); the first support portion (11) is used for supporting the first damper (2) to rotate around the axis of rotation (X-X); and the second support portion (12) is used for supporting the second damper (3) to rotate around the axis of rotation (X-X). By means of the device, the precision of movement of the first damper and the second damper is improved.