Electric Brake Cylinder Layout for Flexible Circuit Board Placement
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Solution Overview
Problem
The existing electric braking device design restricts the circuit board's size and shape due to the placement of cylinders, necessitating avoidance of contact and resulting in size limitations for the braking device.
Innovation Solution
The electric braking device configures multiple electric cylinder devices with parallel piston shaft lines adjacent to each other, allowing the circuit board to be oriented parallel to these shaft lines, reducing design restrictions and enabling a larger device configuration without considering cylinder size or shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the circuit board is disposed to avoid contact with the cylinder protruding into the board case, then contact between the cylinder and circuit board is prevented, but the circuit board design is heavily restricted in size and shape
Solution Approach 1:
The invention extracts the circuit board from the board case and places it on the chassis, separating it from the cylinder's interference zone. This allows the circuit board to be designed without considering cylinder size and shape, while still preventing contact by positioning it adjacent to the electric cylinder devices on the chassis surface.
2Ease of operation
If the plurality of electric cylinder devices are arranged in the alignment direction on the chassis, then the braking force control is improved, but the dimension of the electric braking device in the alignment direction increases
Solution Approach 1:
The invention changes the orientation of the circuit board to extend in the alignment direction (radial direction of pistons) rather than perpendicular to it. This dimensional reorientation allows the circuit board to accommodate the extended arrangement of electric cylinder devices without increasing the overall device dimension in that direction, as the circuit board's longitudinal direction now aligns with the alignment direction.
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 configuration reduces design restrictions for the circuit board and suppresses the increase in size of the electric braking device, enabling easier assembly and maintenance while accommodating varying wheel cylinder capacities.
Implementation Method 1
electric cylinder device that converts rotational motion of an electric motor into linear motion that drives a piston in a cylinder
Data Source
AI summary
An electric braking device includes a plurality of electric cylinder devices and a circuit board that controls an electric motor of the electric cylinder devices. The plurality of electric cylinder devices and are disposed adjacent to each other in an alignment direction that is a radial direction of pistons with shaft lines of the pistons parallel to each other. The circuit board is disposed adjacent to the plurality of electric cylinder devices in an orientation in which a board surface of the circuit board is parallel to the shaft lines of the pistons and a longitudinal direction is oriented in the alignment direction.