Electric Compressor Connector Vacuum Flow Path Insulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing insulation distance extension sections in electric compressors are complex, complicating manufacturing and assembly, and do not provide sufficient insulation or uniform pressure, especially when using polyalkylene-based lubricating oils or higher voltages.
Innovation Solution
An electric compressor design featuring a connector housing with a vacuum flow path and a sealing member made of electric insulator material, which ensures insulation by allowing refrigerant and lubricating oil to flow through the vacuum path without compromising electrical insulation, even with a cluster housing configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an insulation distance extension section is provided to ensure insulation property, then insulation is improved, but device complexity increases
Solution Approach 1:
The patent introduces a vacuum flow path as an intermediary element that allows refrigerant flow while maintaining insulation. The vacuum flow path acts as a mediator between the need for refrigerant circulation and the requirement for electrical insulation, eliminating the need for complex insulation distance extension sections by providing a dedicated channel that separates fluid flow from electrical components.
2Stability of the object's composition
If through holes are provided to allow refrigerant flow, then pressure uniformity is improved, but insulation property deteriorates
Solution Approach 1:
The patent segments the flow path into a dedicated vacuum flow path that is separated from the main refrigerant circulation system. This segmentation allows pressure equalization through the vacuum flow path while preventing direct contact between refrigerant and electrical components, thus maintaining both pressure uniformity and insulation property simultaneously.
3Reliability
If the airtight terminal section is completely sealed, then insulation is improved, but pressure uniformity deteriorates
Solution Approach 1:
The vacuum flow path serves as an intermediary channel that reconciles the conflicting requirements of sealing and pressure equalization. By providing this dedicated flow path, the system can maintain a sealed configuration for insulation while allowing controlled pressure equalization through the vacuum flow path, preventing pressure differences that would otherwise compromise the sealed structure.
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 maintains effective electrical insulation and uniform pressure within the compressor, preventing insulation deterioration from refrigerant or lubricating oil flow, and reduces material costs by using different materials for the insulator and sealing member.
Implementation Method 1
a sealing member which provides a seal between the connector housing and the vacuum flow path
Implementation Method 2
a vacuum flow path which communicates an inside with an outside of the connector housing
Implementation Method 3
an electric insulator is interposed between the connector housing and the lead pin. Such an electric insulator could prevent the lead pin connected to the drive circuit side of the connector housing from leaking electric current
Data Source
AI summary
An electric compressor which compresses a coolant by driving a compression mechanism with a motor which is drive controlled by a drive circuit, said compressor being characterized by having a lead pin connected to a current output section of the drive circuit, and a connector which, by being mounted on the lead pin, can provide electrical continuity between the current output section of the drive circuit and a current input section of the motor, said connector being provided with a connector terminal which contacts the lead pin at the time of mounting on the lead pin, a connector housing which houses the connector terminal, a vacuum flow path that communicates the inside of the connector housing with the outside thereof, and a sealing member which provides a seal between the connector housing and the vacuum flow path. Thus, provided is a compressor which is easy to produce and for which it is possible to secure the electrical insulation properties of the interior of the compressor while homogenizing the internal pressure thereof.