Power Supply Device Bus Bar Nesting for Induction Heating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing power supply devices for induction heating require a large size to accommodate multiple output circuits in parallel, which increases inductance and restricts the arrangement of conductors, making it difficult to downsize while maintaining efficient high-frequency current transmission.
Innovation Solution
A power supply device with a current combining unit that includes bus bars and conductive members to combine alternating currents from multiple output units, using inductance adjustment units to equalize current paths and reduce inductance, allowing for a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple output circuits are connected in parallel to output larger current, then the current output capability is improved, but the device size increases
Solution Approach 1:
The patent implements nesting by having the second conductive member penetrate through the first bus bar, and the fourth conductive member penetrate through the second bus bar. This allows multiple current paths to be nested within each other's spatial envelope, combining multiple output circuits in a compact stacked configuration rather than requiring lateral expansion.
Solution Approach 2:
The patent transitions from a planar arrangement to a three-dimensional stacked configuration. Conductive members are arranged in multiple layers with penetration through bus bars, utilizing the vertical dimension to pack multiple current paths together. This dimensional change allows parallel current output without proportional increase in device footprint.
2Loss of energy
If conductors are arranged to reduce inductance, then the high frequency current transmission efficiency is improved, but the arrangement flexibility is restricted
Solution Approach 1:
The patent divides the current combining function into multiple separate conductive members (first, second, third, and fourth conductive members) with distinct paths. Each conductive member handles a portion of the total current, allowing independent optimization of each path's inductance characteristics while maintaining overall flexibility in the electrical connection architecture.
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 solution enables the downsizing of power supply devices while maintaining uniform current distribution and phase alignment, reducing losses and extending the life of output units, and allowing for standardization of components.
Implementation Method 1
The first conductive member is welded to a first surface of the first bus bar and connected to the first output unit. The second conductive member is welded to a second surface of the first bus bar... The third conductive member is welded to a first surface of the second bus bar... The fourth conductive member is welded to a second surface of the second bus bar
Data Source
AI summary
A power supply device includes a first output unit that outputs a first alternating current, a second output unit that outputs a second alternating current, and a current combining unit that combines the first alternating current and the second alternating current. The current combining unit includes a first bus bar, a second bus bar, a first conductive member welded to a first surface of the first bus bar and connected to the first output unit, a second conductive member that is welded to a second surface of the first bus bar, penetrates the second bus bar, and is connected to the second output unit, a third conductive member welded to a first surface of the second bus bar and connected to the second output unit, and a fourth conductive member that is welded to a second surface of the second bus bar, penetrates the first bus bar, and is connected to the first output unit. The second surface of the first bus bar faces the second surface of the second bus bar.