Solar Panel Bypass Box Design for Shading and Heat Management

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Solution Overview

Problem

Conventional solar modules face issues with reduced performance and potential damage due to varying sunlight intensities, leading to uneven voltage distribution and shading effects, which conventional bypass diodes partially address but require complex connections and material usage.

Innovation Solution

A solar panel design featuring an input and output junction box with diodes, spaced apart to allow for efficient current flow and heat dissipation, along with a bridging box for connecting solar cells, simplifying installation and reducing material usage by minimizing cable connections and allowing for easy assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional bypass diodes are used to address shading effects and uneven voltage distribution, then operational reliability is improved, but device complexity and material usage increase

Engineering Contradiction:
Improveoperational reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple bypass diodes into a single integrated bypass box structure, merging several protective functions into one component. This reduces the number of separate components and connections needed, thereby lowering device complexity while maintaining the reliability benefits of bypass protection against shading effects and uneven voltage distribution.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The bypass box serves multiple functions simultaneously: it provides bypass paths for shaded solar cells, balances voltage distribution across cell groups, and protects against reverse breakdown. This multi-functionality eliminates the need for separate components for each protective function, reducing overall device complexity while improving operational reliability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If conventional bypass diodes with manual connections are used, then shading effects are addressed, but ease of manufacture and installation deteriorate

Engineering Contradiction:
Improveprotection against shading effectsVSAvoidease of manufacture
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

Multiple bypass diodes and their connections are merged into a single pre-assembled bypass box unit. This integration eliminates the need for manual connection of individual diodes during manufacturing and installation, significantly improving ease of manufacture while maintaining the protective function against shading effects.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The bypass box is pre-assembled with all necessary diodes and connections prepared in advance during manufacturing. This preliminary action allows the bypass protection system to be installed as a single unit, greatly simplifying the manufacturing process and installation procedures while ensuring proper protection against shading effects.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If multiple separate bypass diodes are used, then voltage distribution is balanced, but material usage increases

Engineering Contradiction:
Improvevoltage distribution balanceVSAvoidmaterial usage
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

Multiple bypass diodes are merged into a single bypass box structure, reducing the total amount of materials needed for housing, mounting, and connections. This consolidation maintains the voltage distribution balance function while minimizing material usage compared to having separate diodes distributed across the module.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The bypass box serves as a universal component that provides voltage balancing and protection functions that would otherwise require multiple separate components. This multi-functionality reduces material usage by eliminating redundant housing, mounting structures, and connection elements that would be needed for individual diodes.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 design enhances operational reliability, reduces material usage, and prevents damage from heat and shading effects while maintaining efficient current flow and easy installation, improving the overall performance and durability of solar panels.

Implementation Method 1

an input socket contact device with two conductor contacts and at least one diode, wherein two of the electrical conductors of the solar module are each contacted with an assigned conductor contact of the input socket contact device, and wherein the two conductor contacts are electrically connected by means of the diode

Methodology Applied
Scientific EffectDiode: Diode

Implementation Method 2

at least one solar cell for generating electrical energy as a result of irradiated radiation

Methodology Applied
Scientific EffectPhotovoltaic effect: Photovoltaic Effect

Data Source

PatentEP2436038B1Solar panel, method for producing the same and bypass plug
Publication Date: 2017.10.04 HANWHA Q CELLS GMBH
  • EP2436038B1 patent drawingFigure 1
  • EP2436038B1 patent drawingFigure 2
  • EP2436038B1 patent drawingFigure 3

AI summary

The invention relates to a solar panel, comprising: a solar module (4) – an electrical input connection plug (6) having at least one diode (40), - an electrical output connection plug (8) having at least one diode (40), wherein the input connection plug (6) is attached to the solar module (4) by means of the input connection plug arrangement element (12) and the output connection plug (8) by means of the output connection plug arrangement element (18), at a distance from each other, and to a method for producing the same, to a connection plug and to a bypass plug.