Compressor Electrical Connection Device Insulating Stop
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Solution Overview
Problem
The increasing number of hybrid and electric vehicles requires the use of different lubricants for mechanical and electric compressors, leading to complex stock management and increased error risks due to the higher cost and distinct insulation properties of dielectric lubricants compared to conventional lubricants.
Innovation Solution
An electrical connection device for compressors featuring a connection block with removable electrical connection elements arranged in a triangle, an electrically insulating element that acts as an end stop and cap to ensure correct positioning and enhance insulation, reducing the risk of electric arcing and allowing a single lubricant to be used across both types of compressors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If electrical connection elements are positioned in a triangle for space minimization, then the device size is reduced, but the positioning precision and reliability of electrical connections deteriorate
Solution Approach 1:
The patent introduces an electrically insulating element as an intermediary component between the connection block and the wall. This insulating element provides a reference surface that enables precise positioning of the electrical connection elements through abutment, while the connection block maintains the triangular arrangement for space efficiency. The insulating element acts as a mediator that resolves the conflict between compact positioning and connection precision.
2Ease of manufacture
If the connection block structure is simplified, then manufacturing ease and fluid tightness are improved, but the positioning accuracy of electrical connection elements deteriorates
Solution Approach 1:
The patent divides the positioning function into two separate components: the connection block maintains a simple structure for ease of manufacture and fluid tightness, while the electrically insulating element provides the positioning reference surface. This segmentation allows each component to be optimized for its specific function without compromising the other.
Solution Approach 2:
The electrically insulating element serves as an intermediary that provides positioning reference surfaces for the electrical connection elements. This mediator enables precise positioning without complicating the connection block structure, as the insulating element carries the positioning features while the connection block remains simple and fluid-tight.
3Volume of moving object
If electrical connection elements are positioned closer to the wall, then space is minimized, but the risk of electric arcing increases
Solution Approach 1:
The electrically insulating element acts as a mediator between the electrical connection elements and the wall. It provides electrical insulation and maintains safe spacing between high-potential elements and the ground-potential wall, preventing electric arcing while allowing compact overall device design. The insulating element bridges the need for space efficiency and electrical safety.
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 simplifies the positioning of electrical connection elements, reduces the risk of incorrect connections, and enhances insulation to prevent electric arcing, enabling the use of a single lubricant type across different compressor technologies, thereby streamlining production and reducing errors.
Implementation Method 1
at least one electrically insulating element mounted removably on the connection block so as to insulate the electrical connection elements from a wall separating the control device from the electric motor
Implementation Method 2
said electrically insulating element being configured to provide an end stop for said electrical connection elements as said connection block is inserted into said electrically insulating element
Data Source
AI summary
The invention concerns an electrical connection device (5) for a compressor, the electrical connection device (5) comprising a connection block (7) for connection to an electric motor (2) of the compressor, a plurality of removable electrical connection elements (72) fitted in a triangle in said connection block (7) to engage with a connection terminal (6) of a control device (1) of said electric motor (2) and at least one electrically insulating element (8) removably mounted on the connection block (7) in such a way as to insulate the electrical connection elements (72) from a wall separating the control device (1) from the electric motor (2), said electrically insulating element (8) being configured to provide a stop for said electrical connection elements (72) when said connection block (7) is inserted into said electrically insulating element (8). The invention also concerns a compressor comprising such an electrical connection device (5).