Cable Gland Kit for Sealed Lighting Housing
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Solution Overview
Problem
Cable glands in existing systems can complicate assembly and may leave openings that allow dust, humid air, or water to enter the device, compromising the integrity of the electrical connection and housing.
Innovation Solution
A kit of parts including a cable gland and a support plug, where the cable gland has a sealing nut and a body with a thread, and the support plug can be used to facilitate the transport and sealing of electrical wire-to-wire connectors through the gland, ensuring a secure and watertight connection when assembled.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a cable gland is used to seal the housing opening, then protection against dust and water ingress is improved, but the complexity of assembling and disconnecting electrical cables increases
Solution Approach 1:
The cable gland assembly is divided into separate functional components: a stationary gland body integrated into the housing, a movable sealing element, and a cable management component. This segmentation allows the sealing function to be maintained while simplifying cable assembly and disconnection operations.
Solution Approach 2:
The cable gland incorporates a movable sealing element that can dynamically adjust its position. During cable assembly, the sealing element moves to accommodate cable insertion; during operation, it maintains a sealed position; and during disassembly, it moves to allow cable removal. This dynamic behavior resolves the contradiction between sealing effectiveness and operational simplicity.
2Reliability
If a traditional cable gland assembly is used, then electrical cable protection is improved, but the time required for assembly and disassembly increases
Solution Approach 1:
The cable gland is pre-configured with the sealing element in a ready-to-seal position during housing assembly. Cable glands are pre-assembled as modules before final installation. This preliminary preparation eliminates time-consuming adjustments during cable installation and disconnection operations while maintaining reliable cable protection.
Solution Approach 2:
A movable sealing element acts as an intermediary between the stationary gland body and the cable. This intermediary component handles the time-consuming sealing action automatically during cable insertion and removal, reducing the time required for assembly and disassembly while maintaining reliable cable protection throughout the process.
3Object-affected harmful factors
If the cable gland is always sealed, then protection against material ingress is improved, but accessibility for electrical connections is worsened
Solution Approach 1:
The sealing element is designed to be dynamic rather than static. It automatically transitions between open and sealed states based on cable presence: remaining open to allow cable insertion and removal, then closing to provide protection against material ingress during operation. This dynamic behavior resolves the contradiction between continuous protection and operational accessibility.
Solution Approach 2:
The cable gland system is self-regulating regarding its sealing state. The presence or absence of a cable automatically triggers the appropriate sealing configuration without requiring manual intervention. When a cable is inserted, the sealing element opens to allow access; when removed, it automatically closes to maintain protection, eliminating the need for manual sealing operations.
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
The solution allows for easy assembly and disassembly of electrical connections while maintaining a sealed environment, preventing ingress of dust and water, and ensuring reliable electrical coupling within the housing.
Implementation Method 1
a sealing nut (120) for the cable gland body (110)
Implementation Method 2
a cable gland body (110) with a thread (153)
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
The invention provides a kit of parts, especially for a lighting system with a light generated device hosted in a housing, the kit of parts comprising (i) a cable gland (100) comprising a cable gland body (110) and a sealing nut (120) for the cable gland body (110), wherein the cable gland (100) is configured for hosting an electrical cable (10) over at least part of a cable length (L) of the electrical cable (10), wherein the electrical cable (10) comprises an electrically conductive wire (11), wherein the cable gland (100) has a cable gland length (L2), and (ii) a wire transport element (2000) comprising a wire transport connector facility (2220) for hosting a part of a functional device electrically conductive wire (311), wherein the shape of the wire transport element (2000) is such that the wire transport element (2000) can be transported through the cable gland (100) over at least part of the cable gland length (L2).