Electronic Cargo Door Lock Actuator Mechanism

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Solution Overview

Problem

Existing door closing systems for trucks and cargo vehicles are uncomfortable and require the use of a key for locking and unlocking, which is inefficient and lacks safety features for remote operation.

Innovation Solution

An electronic lock system for cargo vehicle doors that includes a base with an integrated electronic system, a motor, and a handle, allowing remote operation via RF or RFID for secure, comfortable, and efficient opening and closing of doors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional deadbolt locking mechanisms are used, then the door can be locked securely, but the operation becomes uncomfortable and requires physical keys

Engineering Contradiction:

Improvelocking securityVSAvoidoperation comfort

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces the conventional mechanical deadbolt system with an electronic locking mechanism controlled by a microprocessor and actuator. The electronic lock uses an electric motor-driven actuator to move the locking element, eliminating the need for manual key insertion and mechanical deadbolts, thereby improving operational comfort while maintaining security

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The electronic locking system automatically locks the door upon closing without requiring manual intervention. The microprocessor controls the actuator to engage the locking mechanism automatically, and can also automatically unlock when authorized, reducing the need for human operation of keys or manual locking mechanisms

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If electronic locking systems are implemented, then remote operation capability is improved, but device complexity increases

Engineering Contradiction:

Improveremote operation capabilityVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The electronic locking system integrates multiple functions into a single device: automatic locking upon door closing, remote unlocking via RF/RFID signals, emergency mechanical key operation, and integration with vehicle access control systems. This multi-functionality approach allows the system to provide diverse capabilities while using a unified structural platform

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent introduces an intermediary actuator mechanism that translates electronic control signals into mechanical locking/unlocking actions. This actuator serves as a mediator between the electronic control system and the physical locking mechanism, enabling remote operation while managing the complexity through modular design

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If traditional key-based locking mechanisms are used, then the structure remains simple, but safety features for remote operation are insufficient

Engineering Contradiction:

Improvestructural simplicityVSAvoidsafety features

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The locking system is segmented into distinct functional modules: an electronic control unit with microprocessor, a separate actuator mechanism, a locking element, and an emergency mechanical key interface. This segmentation allows the system to incorporate advanced safety and remote operation features while maintaining structural simplicity through modular architecture, where each module performs a specific function

Inventive Principle:

Principle #1Segmentation

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 electronic lock system provides automatic locking and remote unlocking capabilities, enhancing safety and convenience by eliminating the need for physical keys and reducing wiring requirements.

Implementation Method 1

with a motor, the electronic system being in charge of governing the closing and opening of the electronic lock

Methodology Applied

Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 2

the complementary locking element can have elastic means such as springs or platforms, configured to rotate the complementary locking element and move from the opening position to the locking position of the electronic lock

Methodology Applied

Scientific EffectElastic potential energy storage and release: Elasticity

Data Source

PatentEP4332332B1Electronic lock for cargo vehicle doors

Publication Date: 2025.01.29 MECANIZADOS RODRIGUEZ FERNANDEZ SL

Figure 1~2
Figure 3~4a
Figure 4b~4c

AI summary

Electronic lock for cargo vehicle doors, with an electronic system (3) and a motor (7), a slider (5) with linear displacement, and locking means (6). The locking means (6) have an actuating lever (8) connected to the motor (7), an intermediate link (9) connected to the slider (5) and to the actuating lever (8), with a locking stop (10), and a complementary locking element (11). The electronic lock (1) has a locking position in which the locking stop (10) contacts against the complementary locking element (11) locking the slider (5), an unlocking position in which the locking stop (10) is separated from the complementary locking element (11), and an opening position in which the actuation of the slider (5) has caused the opening of the door.