Vehicle Door Lock Switch Plate Wiring Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The complexity of wiring in vehicle door locking devices has increased due to the integration of multiple electronic components, leading to reduced yields, larger size, and higher costs.
Innovation Solution
A vehicle door locking device with a casing that includes a connection part, a latch mechanism, a locking-unlocking mechanism, a first switch for detecting the lever lock's position, a second switch for controlling the room lamp, and a harness plate to manage wiring, which simplifies the internal wiring configuration and improves component yields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple electronic components are integrated inside the casing, then the functionality and versatility of the door locking device are improved, but the wiring complexity increases and manufacturing yield decreases
Solution Approach 1:
The patent combines multiple wiring functions into a single integrated switch plate structure. The switch plate integrates conducting plates for power supply, ground, and signal transmission, along with resin base members that provide structural support and insulation. This merging of multiple wiring functions into one component reduces wiring complexity while supporting multiple electronic components including motors, switches, and sensors.
Solution Approach 2:
The switch plate serves multiple functions simultaneously: it provides electrical connection through conducting plates, structural support through the resin base member, insulation, and mounting surfaces for electronic components. This multi-functionality allows the door locking device to support various electronic components (motor, switch, sensor) without proportionally increasing wiring complexity.
2Adaptability or versatility
If complex wiring is embedded in the casing, then more electronic components can be connected, but the manufacturing yield of wiring components decreases
Solution Approach 1:
The conducting plates are integrated with the resin base member to form a single switch plate component. This integration means that even if some wiring paths are not used in certain configurations, the entire switch plate can be used, reducing waste and improving manufacturing yield compared to using separate wiring components for each function.
Solution Approach 2:
The patent allows the switch plate to be configured with different conducting plate arrangements and resin base member structures depending on the specific application requirements. This flexibility in configuration parameters enables optimization for manufacturing yield while maintaining the ability to support multiple electronic components.
3Adaptability or versatility
If wiring components are made more complex to support additional components, then the functionality is improved, but the size and cost of the device increase
Solution Approach 1:
Multiple wiring functions are merged into the switch plate structure, eliminating the need for separate wiring harnesses and connectors for each electronic component. This integration reduces the overall device size by consolidating what would otherwise be multiple separate components into one unified structure.
Solution Approach 2:
The switch plate's multi-functional design allows it to support multiple electronic components simultaneously without requiring proportional increases in device size. The conducting plates and resin base member provide versatile electrical and structural support that accommodates various component configurations within a compact form factor.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A vehicle door locking device (1) provided as one aspect of the present invention includes: a casing; a connection part to which a connector for connection to an external device is connected; a latch mechanism (4) including a latch (43) and a ratchet (44); a locking-unlocking mechanism (6) including a lever lock (63) and a motor (68); a first switch (13) that detects the rotational position of the lever lock (63); a second switch (14) that switches a room lamp of a vehicle on and off in accordance with the rotational position of the latch (43); a switch plate (7) that electrically connects the connection part to the motor (68) and the first switch (13) that are arranged in a front portion of the inside of the casing in a front-to-rear direction of the vehicle; and a harness plate that electrically connects the second switch (14) and the connection part to each other through a plurality of harnesses and the switch plate (7).