Actuating Device Housing Integrated Fastening
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Solution Overview
Problem
The manufacturing of actuating devices for machines, such as exhaust gas turbochargers, faces challenges in reducing manufacturing effort and cost due to the need for multiple fastening points and components, which increases space requirements and assembly complexity, especially when dealing with high-temperature environments that affect the service life of electrical components.
Innovation Solution
The actuating device features a housing with primary and secondary attachment points, where the secondary points are used for initial assembly and functional testing, and the primary points take over for long-term operation, allowing for a simpler design that eliminates the need for redundant secondary fastening mechanisms and reduces thermal stress, using integrated screw connections and snap-in connections for efficient attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate fastening points (primary and secondary) are provided for attaching housing parts and machine, then the attachment reliability is improved, but the device complexity and manufacturing effort increase
Solution Approach 1:
The patent combines primary and secondary fastening functions into a single integrated fastening point. The fastening point includes both a first fastening element for attaching housing parts to each other and a second fastening element for attaching the housing to the machine, thereby merging multiple fastening functions into one structure and reducing overall device complexity while maintaining attachment reliability
Solution Approach 2:
The fastening point is designed with multi-functionality, serving both as a secondary fastening point for housing assembly and as a primary fastening point for machine attachment. This universal design allows the same structural element to fulfill multiple fastening purposes, eliminating the need for separate fastening mechanisms
2Reliability
If multiple separate fastening points are provided, then the attachment reliability is improved, but the manufacturing cost and assembly steps increase
Solution Approach 1:
By merging primary and secondary fastening functions into a single fastening point, the patent reduces the number of components that need to be manufactured and assembled. This integration eliminates redundant manufacturing steps and reduces the overall manufacturing effort while maintaining the reliability benefits of multiple fastening functions
Solution Approach 2:
The multi-functional fastening point design allows a single component to serve multiple purposes, reducing the total number of parts that need to be manufactured. This universality simplifies the manufacturing process and reduces costs while ensuring reliable attachment through both housing-to-housing and housing-to-machine connections
3Adaptability or versatility
If separate primary and secondary fastening points are provided, then the functional testing capability is improved, but the space requirements increase
Solution Approach 1:
The patent merges primary and secondary fastening points into a single integrated structure, allowing functional testing to be performed at the same location where final machine attachment occurs. This spatial consolidation eliminates the need for separate testing and installation locations, reducing overall space requirements while maintaining testing capability
Solution Approach 2:
The fastening point's multi-functional design enables it to serve both as a testing fixture during functional testing and as a permanent attachment point during machine installation. This dual-purpose capability allows the same space to be used for both testing and final assembly operations
Data Source
Figure 1
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AI summary
The present invention relates to an actuating device (1) for mechanically actuating a component of a machine, comprising a housing (3) having a first housing part (4) and a second housing part (5), an electric motor (6) arranged in the housing (3) for driving an actuator (7) arranged on the outside of the housing (3) for coupling with the component to be actuated, several primary mounting points (12) for attaching the housing (3) to the machine, and at least one secondary mounting point (14) for attaching the first housing part (4) to the second housing part (5). Cost-effective manufacturing is achieved if the primary mounting points (12), when the housing (3) is attached to the machine, also secure the first housing part (4) to the second housing part (5) in addition to the at least one secondary mounting point (14).