Vehicle Steering Driving Device Integrated Connector Assembly
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Solution Overview
Problem
Conventional steering device assembly for vehicles involves complex processes like welding and soldering, leading to increased power loss and assembly time, as well as compromised sealing due to the need for drawing out and reinserting terminals.
Innovation Solution
A driving device design that incorporates a housing cover with integrated connectors and a fork fin structure, allowing components to be connected without additional processes like welding or soldering, using a connecting connector and power supply connectors arranged perpendicular to the motor driving module, and a heat sink for improved sealing and reduced power loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding and soldering processes are used to connect components, then connection strength is improved, but assembly complexity and assembly time increase
Solution Approach 1:
The patent combines the connector and terminal structures into an integrated assembly where the connector is pre-assembled with terminals before insertion into the housing. This merging of components eliminates the need for separate welding and soldering operations during final assembly, reducing assembly complexity while maintaining connection strength through the integrated design
Solution Approach 2:
The connector and terminals are assembled and connected in advance before being inserted into the housing cover. This preliminary assembly action allows connections to be established prior to final installation, eliminating the need for complex welding or soldering processes during the main assembly operation and significantly reducing assembly time and complexity
2Reliability
If welding and soldering processes are used to connect components, then connection reliability is improved, but power loss increases
Solution Approach 1:
The patent extracts and eliminates the welding and soldering processes from the assembly method. By using a mechanical insertion and pressing connection system instead of thermal joining processes, the design removes the sources of power loss associated with welding and soldering while maintaining connection reliability through the pressing pieces that secure electrical contacts
3Ease of operation
If drawing grooves are formed in housing cover for terminal insertion, then connectivity is achieved, but sealing performance deteriorates
Solution Approach 1:
Instead of forming grooves in the housing cover to receive terminals (which compromises sealing), the patent inverts the approach by having the connector with integrated terminals inserted into the housing and then pressed into place by pressing pieces formed on the inner surface of the housing cover. This reversal maintains sealing integrity while achieving connectivity
4Strength
If additional fastening processes like welding or soldering are used, then component fastening is secured, but process steps increase
Solution Approach 1:
The pressing pieces on the inner surface of the housing cover automatically secure the connector when it is inserted. The connector is held in place by the mechanical action of the pressing pieces without requiring additional fastening processes. This self-service fastening mechanism eliminates the need for welding or soldering steps while maintaining secure component fastening, thereby improving assembly efficiency
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 simplifies the assembly process, minimizes power loss, and enhances sealing by eliminating the need for welding and drawing grooves, while maintaining operational reliability and stability.
Implementation Method 1
a heat sink is further included to contact the inverter circuit portion and the relay circuit portion
Implementation Method 2
the first power supply connecting portion includes a pair of the first pressing pieces which are arranged in parallel so that the connecting connector may be inserted to press the connecting connector
Data Source
AI summary
A driving device for steering a vehicle includes a housing cover formed with a power supply connector; an insert mold installed in the housing cover and formed with a connecting connector; a printed circuit board disposed on one side of the insert mold; a motor driving module disposed on one side of the printed circuit board, formed with a first power connecting portion which is connected to the connecting connector by being installed in the housing cover, having a relay circuit portion which is connected to the first power connecting portion to switch power and three inverter circuit portions which are connected to the relay circuit portion, and formed with a second power connecting portion which is connected to the respective inverter circuit portions; and a motor portion disposed on one side of the motor driving module, and having a motor connector connected to the second power connecting portion.