Linear Actuator Sealed Housing Segmentation
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Solution Overview
Problem
Existing linear actuators face challenges in achieving a favorable balance between manufacturing costs and durability, especially under extreme environmental conditions, and lack effective protection and sealing to prevent damage from weather and debris.
Innovation Solution
A linear actuator design featuring a column-shaped housing with integral construction, subdivided into sealed electrical and mechanical chambers, where the electric motor and sensor components are separated by a continuous housing wall, ensuring weather-tight protection and allowing for easy assembly and maintenance, with a sliding bearing arrangement for the tubular connecting rod and a dynamic seal to manage pressure differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the housing is designed with integral construction to reduce the number of parts, then manufacturing cost is reduced, but assembly complexity increases
Solution Approach 1:
The housing is segmented into multiple modular components including a first housing part, a second housing part, and end closures. These segments are designed to be assembled together through standardized connection interfaces, allowing the housing to be manufactured separately in parts and then assembled into a complete structure, thereby reducing manufacturing complexity while maintaining structural integrity
2Reliability
If the conducting components and mechanical components are separated by seals into two spaces, then protection against weather and debris is improved, but device complexity increases
Solution Approach 1:
The internal space of the housing is segmented into a first space for conducting components and a second space for mechanical components, separated by a partition wall with integrated sealing elements. This segmentation provides environmental protection while maintaining a relatively simple overall structure through the use of integrated seal elements rather than multiple separate sealing components
Solution Approach 2:
A partition wall with integrated sealing elements acts as an intermediary structure between the conducting components and mechanical components. This partition provides both structural separation and environmental sealing functions, protecting components from weather and debris while maintaining a manageable device complexity through integration
3Ease of operation
If the electric motor and sensor components are inserted from one or both ends of the housing, then ease of assembly is improved, but the housing design becomes more complex
Solution Approach 1:
The housing is divided into modular segments with open ends or removable end closures that allow components to be inserted from the ends during assembly. After assembly, the end closures are installed to complete the housing structure, providing ease of assembly while maintaining a relatively simple housing design through the use of standardized modular components
Data Source
AI summary
A linear actuator is disclosed having a housing and a plurality of components arranged in the housing. The actuator may includeat least one conducting component,a group of mechanical, non-conducting components including components of a spindle mechanism, andat least one bearing arrangement designed to support components of the spindle mechanism in the housing.The at least one conducting component may be separated from the group of mechanical, non-conducting components by at least one seal in such a way that two mutually separate spaces sealed off from one another are formed within the housing.