Tool-Locked Solar Connector with Integrated Rear Sealing

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Solution Overview

Problem

Existing connector systems for solar modules to power consumers lack reliable and secure moisture-proof connections, especially in adverse weather conditions, and often require complex sealants and designs to achieve IP 67 or IP 68 standards.

Innovation Solution

A connector system with a housing element and complementary connector featuring a locking device and electrical contact elements, where the locking mechanism can only be unlocked using a tool, ensuring a moisture-tight seal and compact design, achieving IP 67 or IP 68 standards without the need for multiple sealants, and incorporating flexible materials for durability and adhesion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional connector systems use multiple sealants and complex designs to achieve moisture-proof connections, then moisture protection is improved, but device complexity increases

Engineering Contradiction:
Improvemoisture protectionVSAvoidconnector design complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent integrates the sealing function directly into the connector housing structure itself, merging the sealing element with the housing rather than using separate sealants. This integration achieves IP 67 or IP 68 moisture protection while reducing device complexity by eliminating multiple separate sealing components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The connector housing is designed with specific geometric parameters and structural features that inherently provide moisture-proof sealing. By optimizing the housing design parameters, the system achieves high reliability moisture protection without requiring complex additional sealing mechanisms.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If the locking mechanism is designed to be tool-free for ease of operation, then ease of operation is improved, but reliability of connection decreases

Engineering Contradiction:
Improvelocking mechanism operationVSAvoidconnection security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The locking mechanism is designed to automatically engage and lock when the connectors are mated, eliminating the need for manual intervention. The system self-secures through its own structural design, achieving both ease of operation and reliable connection security without requiring tools or complex manual locking procedures.

Inventive Principle:
Principle #25Self-service

3Ease of manufacture

If the connector design is simplified to reduce device complexity, then ease of manufacture is improved, but moisture protection capability deteriorates

Engineering Contradiction:
Improveconnector productionVSAvoidmoisture-proof connection
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The sealing function is merged into the housing structure itself, allowing the connector to be manufactured as an integrated component rather than assembling multiple separate sealing parts. This approach simplifies manufacturing while maintaining IP 67 or IP 68 moisture protection capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The housing design incorporates localized sealing features at critical areas where moisture protection is needed, rather than requiring complex sealing throughout the entire connector. This localized approach maintains moisture protection while simplifying overall manufacturing.

Inventive Principle:
Principle #3Local quality

4Strength

If the connector system uses rigid materials for structural strength, then strength is improved, but adaptability to assembly variations decreases

Engineering Contradiction:
Improveconnector structural strengthVSAvoidassembly tolerance
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The connector system uses materials and design parameters that provide both structural strength and flexibility. By carefully selecting material properties and dimensional parameters, the system achieves adequate strength while maintaining adaptability to assembly variations and misalignments.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP2301117B1Connector system, use and method
Publication Date: 2017.09.13 YAMAICHI ELECTRONICS DEUTSCHLAND GMBH
  • EP2301117B1 patent drawingFigure 1
  • EP2301117B1 patent drawingFigure 2
  • EP2301117B1 patent drawingFigure 3

AI summary

The invention relates to a connector system comprising a connector and a complementary connector, the connector comprising a housing element having a locking element and an electrical contact element, said electrical contact element being arranged in a front end section of the housing element and comprising a closing element arranged on the housing element, which closing element envelopes at least the rear end of the housing element and a section of an electrical cable arranged outside the housing element and is intimately connected to the housing element and the electrical cable to such a degree that the interior of the housing element is closed off from the surroundings at the rear end in a moisture-tight manner. The complementary connector comprises corresponding complementary elements. The locking element can only be unlocked by means of a tool.