Coaxial Multi-Contact Relay Layout for Compact Circuit Control
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Solution Overview
Problem
Multiple relays are required to control multiple control circuits, leading to increased space occupation and production costs in distribution modules.
Innovation Solution
A relay design with multiple contact modules and drive shafts arranged coaxially, allowing independent control of different circuits using separate drive units, reducing the overall space and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple relays are arranged to control multiple control circuits, then the control capability is improved, but the space occupied and production costs increase
Solution Approach 1:
The patent combines multiple independent relay units into a single integrated relay device. Each relay unit includes its own contact module with movable contact plate, terminal assembly, and drive assembly, but all are housed together in one common housing with shared accommodation space. This merging approach enables multiple control circuits to be controlled by one relay device rather than requiring separate relay devices, thereby reducing the overall space occupied while maintaining full control capability.
Solution Approach 2:
The relay device is designed as a multi-functional unit where a single housing accommodates multiple contact modules that can independently control different control circuits. The universal design allows the same basic relay structure to be replicated and integrated, providing the ability to control multiple circuits (charging circuit, precharging circuit, etc.) through a single device, thus achieving versatility without proportionally increasing space occupation.
2Adaptability or versatility
If multiple relays are arranged to control multiple control circuits, then the control capability is improved, but the production costs increase
Solution Approach 1:
By merging multiple relay units into a single integrated device with a common housing and shared components, the patent reduces the total number of separate parts that need to be manufactured, assembled, and managed. This consolidation lowers production costs through economies of scale, reduced assembly complexity, and minimized material usage compared to producing and installing multiple separate relay devices.
3Area of stationary object
If multiple contact modules are integrated in a single housing, then the space occupied is reduced, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the integrated relay device into distinct, modular relay units. Each unit contains its own contact module with movable contact plate, terminal assembly, and drive assembly, allowing independent operation. This modular segmentation manages device complexity by creating clear functional boundaries and independent subsystems that can be designed, manufactured, and maintained as separate modules while being integrated in a compact arrangement within the common housing.
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 independent control of multiple control circuits within a single relay housing, minimizing space and cost, while maintaining stable operation and safety.
Implementation Method 1
the drive unit includes an iron core and a drive coil, the iron core is disposed at an end of the drive shaft away from the movable contact plate, and the drive coil is configured to drive the iron core to move in the axial direction
Data Source
AI summary
A relay, includes a housing and multiple contact modules. An interior of the housing has an accommodation space, and each contact module includes a terminal assembly, a movable contact plate, and a drive assembly. The terminal assembly includes two terminals spaced apart and disposed on the housing. The terminal at least partially extends into the accommodation space to form a static contact. The movable contact plate is movably disposed in the accommodation space, and is configured to contact two static contacts to conduct the two terminals. The drive assembly includes a drive shaft and a drive unit that drives the drive shaft. The drive shaft is connected to the movable contact plate, and the drive unit is configured to drive the movable contact plate via the drive shaft. Multiple drive shafts corresponding to the multiple contact modules are disposed coaxially, and are relatively movable in their axial direction.