Straight Tube Lamp Socket Movable Mount for Thermal Expansion
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Solution Overview
Problem
Straight tube type lamps with different electrical characteristics from the JEL801 standard can cause compatibility issues and expansion/contraction problems when mounted on sockets designed for JEL801 lamps, leading to inconsistencies in electrical characteristics and mechanical stress.
Innovation Solution
A lamp system with a straight tube type lamp and socket where the socket's mount part can move in the lamp's longitudinal direction to accommodate the expansion and contraction of the lamp, featuring a protrusion on the lamp cap and a recess in the socket to ensure proper alignment and prevent erroneous mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a straight tube type lamp different in electrical characteristic from the JEL801 standard is mounted on a socket based on JEL801, then the lamp can be physically installed, but electrical inconsistency occurs between the lamp side and equipment side
Solution Approach 1:
The patent applies asymmetry by providing a protrusion on one end cap of the lamp and a corresponding recess on the socket, creating an asymmetric mounting configuration. This asymmetric design enables directional identification and prevents erroneous mounting of lamps with incompatible electrical characteristics, thereby ensuring electrical characteristic consistency while maintaining adaptability.
Solution Approach 2:
The protrusion and recess act as intermediary mechanical features that mediate between the lamp and socket. These intermediaries provide physical guidance and constraint, ensuring that only lamps with compatible electrical characteristics can be properly mounted, thus resolving the contradiction between adaptability and electrical consistency.
2Reliability
If the lamp is fixed rigidly in the socket, then stable electrical connection is achieved, but the lamp cannot accommodate expansion and contraction due to temperature changes
Solution Approach 1:
The patent applies dynamics by making the mount part movable along the lamp longitudinal direction. This dynamic design allows the mount part to adjust its position automatically in response to thermal expansion and contraction of the lamp, maintaining stable electrical connection through the terminal while accommodating temperature-induced dimensional changes.
Solution Approach 2:
The patent utilizes parameter changes by allowing the mount part to change its position parameter along the longitudinal axis. This positional adjustment accommodates changes in lamp length due to temperature variations, ensuring that the electrical connection remains stable across different operating conditions.
3Adaptability or versatility
If a non-feeding side pin is provided on one end cap to absorb expansion and contraction, then thermal adaptability is improved, but the pin may move relative to the terminal causing connection issues
Solution Approach 1:
The patent transforms the static pin connection into a dynamic system where the entire mount part moves along the longitudinal direction. This dynamic approach allows the pin to maintain proper alignment with the terminal while accommodating thermal expansion and contraction, preventing connection issues that would arise from relative movement.
Solution Approach 2:
The patent segments the mounting function into two independent parts: the protrusion-recess mechanism for directional identification and compatibility verification, and the movable mount part for thermal expansion accommodation. This segmentation allows each component to perform its specific function effectively without interfering with the other.
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
This design allows for the effective handling of the lamp's expansion and contraction, preventing compatibility issues and ensuring stable electrical connections while preventing erroneous mounting on unsuitable sockets.
Implementation Method 1
the straight tube type lamp expands and contracts in the lamp longitudinal direction according to the temperature
Data Source
AI summary
A lamp system (10) includes a straight tube type lamp (13) and a socket (14). The straight tube type lamp (13) includes a straight tube type cover (20) containing a light-emitting element, and caps (23) arranged at both ends of the cover (20). A pair of lamp pins (30) whose tips respectively protrude in directions intersecting a lamp longitudinal direction are protrudingly provided on end faces of the caps (23) at both the ends. The socket (14) includes a socket body (41), a rotor (42) which is arranged in the socket body (41) and on which the pair of lamp pins (30) of the straight tube type lamp (13) are mounted, and a pair of terminals to which the pair of lamp pins (30) mounted on the rotor (42) are connected. At least the rotor (42) can move in the lamp longitudinal direction.