Gas Compression Spring Sensor Layout for Simple Radio Transmission
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Solution Overview
Problem
Existing gas springs face challenges in transmitting data from sensors to antennas within complex constructions, particularly when installed in machines or tools, requiring intricate designs to enable radio communication.
Innovation Solution
The system integrates a sensor and radio module in the base part of the gas spring, with the antenna positioned close to the outer wall, preferably less than 3 mm away, and utilizes a secondary antenna formed by the gap between the gas spring and its receiving space to facilitate simple radio signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the antenna is arranged in the cover part or housing wall adjacent to the cover part, then the antenna can be exposed for radio signal transmission, but the data transmission from the sensor in the base part becomes complex
Solution Approach 1:
Instead of placing the antenna in the cover part as conventionally done, the patent inverts the arrangement by placing both the sensor and antenna in the base part. This reversal allows direct local communication between components while the gas compression chamber and housing wall serve as the transmission medium, simplifying the overall construction.
Solution Approach 2:
The housing wall and gas compression chamber are utilized to serve dual functions: maintaining the gas spring's mechanical functionality while simultaneously acting as the transmission medium for radio signals. This eliminates the need for separate dedicated transmission pathways.
2Reliability
If the antenna is arranged close to the outer wall of the base part, then signal interference is minimized, but the space for component arrangement is reduced
Solution Approach 1:
The antenna is positioned specifically close to the outer wall of the base part, creating a localized optimal arrangement where signal transmission quality is prioritized in the critical transmission zone, while other areas of the base part maintain their functional space requirements.
3Device complexity
If the sensor and radio module are integrated in the base part, then data transmission is simplified, but the antenna arrangement becomes more constrained
Solution Approach 1:
The antenna is configured as a meandering monopole antenna in a single plane, utilizing two-dimensional space efficiently. This planar configuration allows the antenna to achieve its electrical length while accommodating the constrained three-dimensional space within the base part.
Solution Approach 2:
The antenna design allows for different configurations (meandering monopole or coil-shaped) depending on the specific spatial constraints, providing adaptability within the constrained base part environment while maintaining effective radio communication.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and uncomplicated radio communication of data from the gas spring, even when installed in machines or tools, by minimizing signal interference and simplifying the construction.
Implementation Method 1
a radio module with an antenna, wherein the radio module and the antenna are also arranged in the base part
Data Source
Figure 1
Figure 2
Figure 3~6
AI summary
Gas spring (10) with a cylindrical housing (20) which has a wall (22), a base part (24) and a cover part (26) having an opening (28) and a longitudinal axis (1), and with a piston (30) which is displaceable in the housing (20) along the longitudinal axis (1) and has an outer surface (32), an end face and an actuating element (36) which is guided through the opening (28), wherein a gas compression chamber (40) is formed between the piston (30) and the housing (20) and wherein the gas spring (10) has at least one sensor (50) for detecting a physical quantity which is arranged in the base part (24) and a radio module (70) with an antenna (72), wherein the radio module (70) and the antenna (72) are arranged in the base part (24).