AC Condenser Connector Block Layout for Crossed Flow Pipe Routing

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Solution Overview

Problem

The existing AC system piping in vehicles, particularly in trucks, experiences wear and vibration issues due to vertical piping configurations, and space constraints limit the ability to route pipes sideways from the connector bloc to the compressor, necessitating long and inefficient pipe lengths.

Innovation Solution

A connector device with a flat, rectangular AC condenser configuration and a connector bloc featuring separate channels for charge and discharge flows that cross within the bloc, allowing piping to extend parallel to the condenser and turn sideways, eliminating pipe crossings and optimizing space usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If pipes run vertically from the connector bloc, then the piping can be simply connected, but the pipes experience wear and vibration against the vehicle and front panel

Engineering Contradiction:
Improvepiping connection simplicityVSAvoidpipe wear and vibration
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent transitions from vertical pipe routing to horizontal/sideways routing at the connector bloc level. The charge pipe and discharge pipe are arranged to extend in different directions from the connector bloc, with the charge pipe extending sideways and the discharge pipe extending in another direction, eliminating vertical contact points that cause wear and vibration.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If pipes are routed sideways from the connector bloc to the compressor, then wear and vibration are reduced, but space constraints prevent pipe crossing

Engineering Contradiction:
Improvereduced pipe wear and vibrationVSAvoidavailable space behind front panel
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent segments the piping system into separate charge pipe and discharge pipe pathways at the connector bloc. Each pipe is routed independently in different directions, allowing the charge pipe to extend sideways and the discharge pipe to extend in another direction, eliminating the need for pipe crossing and optimizing space utilization.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If long pipe lengths are used between connector bloc and compressor, then connection flexibility is increased, but space consumption increases

Engineering Contradiction:
Improvepiping connection flexibilityVSAvoidpipe length and space consumption
Core Design Contradiction:
Adaptability or versatilityVSLength of stationary object

Solution Approach 1:

The patent changes the routing dimension from longitudinal (along the vehicle length) to lateral (sideways from connector bloc). By extending the charge pipe sideways and the discharge pipe in another direction at the connector bloc, the pipes reach the compressor more directly, reducing overall pipe length and space consumption while maintaining connection flexibility.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP1967399B1A connector device for an AC condenser and a vehicle
Publication Date: 2009.12.23 SCANIA CV AB
  • EP1967399B1 patent drawingFigure 1~3
  • EP1967399B1 patent drawingFigure 2~4

AI summary

A connector device for an AC condenser comprising a connection header and a connector bloc (5) for transferring a charge gas flow of a charge pipe to the condenser via an inlet opening (8) and an outlet opening (9) of the connector bloc and for transferring a discharge liquid flow from the condenser via an inlet opening (12) and an outlet opening (13) to a discharge pipe, the charge inlet opening and the discharge outlet opening and the respective connecting pipe parts running thereto being arranged substantially in one plane substantially parallel to the main extension plane of the condenser, the discharge outlet opening being positioned between the charge inlet opening and the condenser header. The device is especially characterized in that the connector bloc (5) is arranged so that the charge gas flow (6) crosses the discharge liquid flow (11) in the connector bloc. The invention also relates to a vehicle.