Inverter Partition Fixation Without Screws
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Solution Overview
Problem
Inverter devices with partitions require a large number of components and assembly steps due to the use of screws for fixing the partition and side walls, leading to increased complexity and cost.
Innovation Solution
An inverter device design where the partition is fixed to the side walls without fastening members like screws, using a configuration where the side walls are inclined and the partition's outer edge is pressed by the side walls, with engagement portions and protrusions to ensure secure fixation and reduce component count and assembly steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to fix the partition to the side walls, then the partition is securely fixed, but the number of components and assembly steps increases
Solution Approach 1:
The partition and side walls are integrated into a single unified structure where the partition forms an integral part of the housing. The partition board is positioned between the side walls and fixed by pressing the outer edge against the inner surfaces, eliminating the need for separate fastening members and reducing component count while maintaining structural integrity.
Solution Approach 2:
The fastening function is extracted from the design by eliminating screws and other fastening members entirely. The partition is secured through the geometric configuration and pressing force of the side walls against the partition's outer edge, removing the need for separate fixation components.
2Reliability
If screws are used to fix the partition to the side walls, then the partition is securely fixed, but the number of assembly steps increases
Solution Approach 1:
The positioning and fixation functions are combined into a single operation. The partition is placed between the side walls and fixed simultaneously by pressing its outer edge against the inner surfaces, eliminating separate positioning and fastening steps that would be required with screw-based systems.
Solution Approach 2:
The fastening operation is extracted from the assembly process by eliminating the need for screw installation, hole alignment, and fastener tightening steps. The partition is secured through the pressing action of the side walls during the basic assembly operation, significantly reducing assembly steps.
3Device complexity
If the partition is pressed by the side walls without fastening members, then the number of components is reduced, but the fixation strength may be compromised
Solution Approach 1:
The side walls are pre-configured with pressing surfaces that apply continuous force to the partition's outer edge. This preliminary positioning and pressing arrangement ensures that the partition is securely held in place before any operational forces are applied, compensating for the absence of mechanical fasteners.
Solution Approach 2:
The partition's outer edge is formed with a bent portion that protrudes perpendicular to the partition body, creating a geometric interlock with the pressing surfaces of the side walls. This curved or angled geometry enhances the mechanical engagement and fixation strength without requiring additional fastening members.
4Reliability
If engagement portions are added to the side walls, then the partition fixation is improved, but the manufacturing complexity increases
Solution Approach 1:
The engagement portions are integrated into the side walls as integral features rather than separate components. The pressing surfaces and geometric engagement elements are formed directly during the side wall manufacturing process, combining the functions of structural support and partition fixation into a single manufacturing operation.
Data Source
AI summary
An inverter device includes a housing that houses a heat generator and a cooler, and a partition. In a state where a pair of side walls are disposed substantially perpendicular to a connection wall, an outer edge of the partition is pressed by the pair of side walls.