Photovoltaic Connection Box Diode Mounting Orientation

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Solution Overview

Problem

Existing photovoltaic connection boxes suffer from heat transfer issues due to the close proximity of diodes to solar panels, reducing power generation efficiency and requiring larger dimensions for miniaturization.

Innovation Solution

A photovoltaic connection box design with a conductive terminal having a perpendicular first lateral wall for mounting the diode, increasing the distance between the diode and the solar panel, and incorporating a lateral wing for busbar connection, allowing for miniaturization while maintaining efficient electrical connectivity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the diode is fixed on the horizontal surface of the conductive terminal parallel with the solar panel, then the electrical connection is simple, but the heat from the diode transfers to the solar panel reducing power generation efficiency

Engineering Contradiction:
Improveease of manufactureVSAvoidpower generation efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The patent changes the mounting orientation of the diode from horizontal (parallel to solar panel) to vertical (perpendicular to solar panel) by utilizing the lateral wall of the conductive terminal. This dimensional change increases the distance between the diode and solar panel, preventing heat transfer while maintaining electrical connection functionality.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If the diode is fixed on the horizontal surface of the conductive terminal, then the electrical connection is straightforward, but the photovoltaic connection box requires larger dimensions

Engineering Contradiction:
Improveease of manufactureVSAvoidvolume of photovoltaic connection box
Core Design Contradiction:
Ease of manufactureVSVolume of moving object

Solution Approach 1:

The patent utilizes the vertical lateral wall of the conductive terminal for diode mounting instead of the horizontal surface. This vertical arrangement optimizes space utilization and reduces the horizontal footprint of the connection box, achieving miniaturization while maintaining all necessary electrical connections.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Volume of moving object

If the diode is mounted close to the solar panel, then the connection box size is reduced, but heat transfer to the solar panel occurs

Engineering Contradiction:
Improvesize of connection boxVSAvoidheat transfer to solar panel
Core Design Contradiction:
Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The patent mounts the diode on the vertical lateral wall of the conductive terminal, creating vertical separation from the solar panel. This spatial arrangement in the vertical dimension effectively isolates the heat source from the solar panel while maintaining a compact overall connection box structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 effectively prevents heat transfer from the diode to the solar panel, enhancing power generation efficiency and achieving a smaller form factor for the connection box, suitable for various solar panel types.

Implementation Method 1

a light-emitting diode mounted on the first lateral wall of the conductive terminal

Methodology Applied
Scientific EffectLight-emitting diode effect: Light Emitting Diode

Implementation Method 2

A solar panel (or so called 'a solar cell panel') is a device which collects solar energy and converts the solar energy into electric energy

Methodology Applied
Scientific EffectPhotovoltaic effect: Photovoltaic Effect

Data Source

PatentEP3035524B1Photovoltaic connection box and photovoltaic assembly
Publication Date: 2020.09.16 TYCO ELECTRONICS HOLDINGS (BERMUDA) NO 7 LTD
  • EP3035524B1 patent drawingFigure 1
  • EP3035524B1 patent drawingFigure 2
  • EP3035524B1 patent drawingFigure 3

AI summary

A photovoltaic connection box mounted on the surface of a solar panel is disclosed. The photovoltaic connection box includes a box, a conductive terminal received in the box and having a fist lateral wall which is perpendicular to the surface of the solar panel; and a diode connected to the first lateral wall of the conductive terminal. As the diode is installed on a vertical lateral wall of the conductive terminal which is perpendicular to the solar panel, the distance between the diode and the solar panel is increased, which may effectively prevent the heat created by the diode from being transferred to the solar panel, and improve the power generation efficiency of the solar panel.