Electronic Control Device Connector Press-Fit Positioning
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Solution Overview
Problem
The existing electronic control devices face challenges in achieving high positioning accuracy for the connector's pin header and connector housing portions, which affects assembly and water-proof properties, as they are formed as independent structures requiring precise alignment.
Innovation Solution
The electronic control device employs a press-fit positioning structure using crush ribs and boss holes between the case members, ensuring accurate alignment and assembly of the pin header and connector housing portions, thereby enhancing the water-proof properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the pin header portion and connector housing portion are formed as independent structures, then the connector can be assembled separately, but the positioning accuracy between the pin header and connector housing becomes insufficient
Solution Approach 1:
The patent merges the pin header portion and connector housing portion into a single integrated structure. The pin header is formed as an integral part of the connector housing, eliminating the need for separate assembly. This integration ensures precise positioning of the pin header relative to the connector housing while maintaining ease of manufacture through single-step molding processes.
2Reliability
If the connector components are positioned with high accuracy, then the water-proof property is improved, but the assembly process becomes more difficult
Solution Approach 1:
By integrating the pin header and connector housing into a single component, the patent eliminates positioning errors that would compromise water-proofing. The integrated structure ensures automatic alignment and eliminates gaps between components, providing reliable water-proof performance while simplifying the assembly process to a single installation step.
3Adaptability or versatility
If the pin header and connector housing are assembled separately, then flexibility in assembly is improved, but the fitting accuracy and water-proof contact become insufficient
Solution Approach 1:
The patent resolves the contradiction by combining the pin header and connector housing into one integrated component. This eliminates the need for separate assembly operations while ensuring precise fitting accuracy. The integrated design maintains assembly flexibility through modular connector placement in the case, while guaranteeing accurate positioning of the pin header relative to the housing for proper water-proof contact.
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 approach simplifies and improves the assembly process while ensuring high accuracy in positioning, resulting in enhanced ease of assembly and improved water-proof properties for the connectors.
Implementation Method 1
the first case member including the connector housing portion and the pin header mounted on the electronic circuit board have a first positioning structure using press-fit
Data Source
AI summary
Provided is an electronic control device, in which positioning of a case including a connector housing portion and a pin header portion of a connector mounted on an electronic circuit board may be carried out easily with high accuracy so that ease of assembly and a water-proof property of the connector are improved. The electronic control device includes: an electronic circuit board (1) on which a pin header (30) used for electric connection to an external device is mounted together with an electronic component (11); and a case (2) for receiving the electronic circuit board therein, the case including a connector housing portion (31) provided as an opening portion (310) at a position corresponding to the pin header. A cover (20) of the case including the connector housing portion and the pin header mounted on the electronic circuit board have a first positioning structure using press-fit.