Compressor Control Card Housing with Sliding Cover for Pin Access

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Solution Overview

Problem

The existing control card housings for hermetic compressors require time-consuming and labor-intensive disassembly for maintenance, leading to damage and increased costs due to the need to physically access electronic cards for software updates or testing, which results in deformation and scrap of components during assembly and disassembly.

Innovation Solution

A control card housing with a rectangular opening for pin access and a sliding cover mechanism that allows external access to pins without dismounting from the compressor, featuring a locking mechanism to prevent unintentional opening and deformation, enabling easy maintenance without disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the control card housing is disassembled to access the electronic card for maintenance, then the pins can be accessed for software updates and testing, but the housing and components are damaged and time is lost

Engineering Contradiction:
ImproveAccess to pins for maintenanceVSAvoidTime for disassembly and reassembly
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The housing is segmented into a main body and a removable cover portion. The cover can be detached from the housing body to provide direct access to the electronic card and its pins, while the main housing remains mounted on the compressor. This segmentation allows maintenance personnel to access the card without completely disassembling the housing, significantly reducing the time and damage associated with full disassembly.

Inventive Principle:
Principle #1Segmentation

2Ease of repair

If the control card housing is disassembled to access the electronic card, then maintenance operations can be performed, but deformation and scrap of components occur

Engineering Contradiction:
ImproveMaintenance of electronic cardVSAvoidIntegrity of housing and components
Core Design Contradiction:
Ease of repairVSReliability

Solution Approach 1:

By dividing the housing into a permanent main body and a removable cover, the design allows the main housing and its mounting features to remain intact and undamaged. Only the cover needs to be removed for maintenance, preserving the structural integrity and reliability of the housing and its connection to the compressor.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cover is designed with dynamic characteristics that allow it to be easily removed and reattached during maintenance operations. The cover can be flexibly detached when needed and securely reattached when not needed, providing adaptive access without compromising the permanent housing structure.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the opening is left uncovered for pin access, then maintenance is easier, but the electronic card is exposed to damage

Engineering Contradiction:
ImproveAccess to pinsVSAvoidExposure of electronic card to damage
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The cover provides dynamic protection for the electronic card. When the card is not being maintained, the cover is closed to protect the card from dust, static electricity, and physical damage. When maintenance is needed, the cover is opened to provide access to the pins. This dynamic cover system simultaneously provides protection and accessibility.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3803120B1An electronic card housing mounted to a compressor
Publication Date: 2023.07.05 ARCELIK AS
  • EP3803120B1 patent drawingFigure 1~2
  • EP3803120B1 patent drawingFigure 3~4
  • EP3803120B1 patent drawingFigure 5

AI summary

The housing (8) of the invention is adapted to be used in a compressor (1) by being fastened thereon, and comprises at least one opening (12) disposed at the region corresponding to the portion of an electronic card (6) provided in the housing (8), accommodating one or more pins (7) to which data and/or electrical connections are to be established, wherein the opening (12) enables the pins (7) to be externally accessed, and the housing (8) further comprises at least one cover (13) enabling said opening (12) to be covered and uncovered.