Dual Throttle Body Wiring Layout With Shared Gear Case Mounting
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Solution Overview
Problem
Conventional throttle devices require separate installation space for wiring base members and bolts, increasing device size and weight due to the need for dedicated fixing members.
Innovation Solution
A throttle device design where the wiring base member is fixed between two throttle bodies' gear cases, eliminating the need for dedicated bolts by using bolts to fasten the gear cases together, and incorporating metal collars for positioning and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate wiring base members are fixed to each throttle body with dedicated bolts, then reliable electrical connection is achieved, but device size and weight increase
Solution Approach 1:
The patent combines two separate wiring base members into a single shared wiring base member that serves both throttle bodies. This single wiring base member is fixed to the common housing, eliminating the need for separate fixing members for each throttle body. The wiring base member includes integrated lead frames that connect to both motors, achieving reliable electrical connection while reducing the number of bolts and installation space required.
2Reliability
If separate wiring base members are fixed to each throttle body with dedicated bolts, then secure mounting is achieved, but device complexity increases
Solution Approach 1:
The patent merges the mounting function for both wiring base members into a single fixing operation. The single wiring base member is secured to the common housing with a reduced number of bolts, eliminating the complexity of managing separate wiring base members and their dedicated fastening systems for each throttle body.
3Reliability
If dedicated bolts are used to fix wiring base members to each throttle body, then secure electrical connection is achieved, but installation space increases
Solution Approach 1:
The patent consolidates the electrical connection system by using a single wiring base member that serves both throttle bodies. This reduces the installation space required for wiring base members and their fastening components, as the single wiring base member is positioned in the common housing rather than requiring separate mounting space on each throttle body.
4Adaptability or versatility
If separate wiring base members are used for each throttle body, then independent wiring is achieved, but cost increases
Solution Approach 1:
The patent merges the wiring base members into a single unit that provides electrical connections for both motors. This reduces manufacturing costs by eliminating redundant components and assembly steps, while the wiring base member is designed with integrated lead frames that maintain independent wiring capability for each motor through its structural design.
Data Source
AI summary
Provided is a throttle device including two throttle bodies having motors that face to each other, in which the wiring base member is compactly placed. A throttle device 1 includes first and second throttle bodies 2 and 3. The first and second throttle bodies 2 and 3 each include a gear case 10 that houses a deceleration mechanism 9 that transmits the rotational force of the motor 8 to the throttle shaft 6. A wiring base member 7 having a power coupler 14 is fixed between the first and second throttle bodies 2 and 3 while being placed between these gear cases 10. The wiring base member 7 has wiring 32 embedded therein, the wiring 32 connecting the motor terminal 25 of each motor 8, the motor terminal 25 protruding into the gear case 10, and the power coupler 14.