System for setting height differences

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Solution Overview

Problem

The existing methods for setting refrigerant transport capacity in air conditioners with height differences between indoor and outdoor units are prone to human error, require significant manual input, and may result in inappropriate capacity settings, affecting cooling and heating performance.

Innovation Solution

A height difference setting system that utilizes a management apparatus or communication terminal to automatically obtain and adjust refrigerant transport capacity based on the height differences between outdoor and indoor units, using sensors and communication units to facilitate accurate and efficient setting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual input method is used to set height difference, then flexibility in setting is improved, but man-hour and input mistakes increase

Engineering Contradiction:
Improveflexibility in settingVSAvoidman-hour
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system enables automatic acquisition of height information for both indoor and outdoor units through sensors and communication modules. The management apparatus automatically calculates the height difference and determines appropriate refrigerant transport capacity settings without requiring manual worker input, thereby eliminating time consumption and input errors while maintaining operational flexibility.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical input method with an automated information acquisition system using sensors (e.g., atmospheric pressure sensors, GPS) and communication modules. This substitution eliminates the need for workers to manually enter height data, automatically capturing and processing height information to determine refrigerant transport capacity settings.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If manual input method is used to set height difference, then flexibility in setting is improved, but input mistakes increase

Engineering Contradiction:
Improveflexibility in settingVSAvoidinput accuracy
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system enables automatic acquisition of height information for both indoor and outdoor units through sensors and communication modules. The management apparatus automatically calculates the height difference and determines appropriate refrigerant transport capacity settings without requiring manual worker input, thereby eliminating input mistakes while maintaining operational flexibility.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical input method with an automated information acquisition system using sensors (e.g., atmospheric pressure sensors, GPS) and communication modules. This substitution eliminates the need for workers to manually enter height data, automatically capturing and processing height information to determine refrigerant transport capacity settings, thereby ensuring input accuracy.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If fixed height difference setting is used, then setup time is reduced, but adaptability to operation conditions decreases

Engineering Contradiction:
Improvesetup speedVSAvoidadaptability to operation conditions
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The system dynamically adjusts the refrigerant transport capacity settings based on the automatically calculated height difference between indoor and outdoor units. The management apparatus processes the height information and determines appropriate settings that adapt to specific installation conditions, enabling both rapid setup and adaptability to varying operation conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of refrigerant transport capacity settings based on the measured height difference. The system automatically acquires height information, calculates the height difference, and adjusts the refrigerant transport capacity parameters accordingly, enabling adaptive settings that match specific installation conditions while maintaining fast setup speed.

Inventive Principle:
Principle #35Parameter changes

4Loss of time

If height difference is not properly set, then manual input work is reduced, but cooling and heating capacity maintenance fails

Engineering Contradiction:
Improvemanual input timeVSAvoidcapacity maintenance
Core Design Contradiction:
Loss of timeVSReliability

Solution Approach 1:

The system enables automatic acquisition of height information for both indoor and outdoor units through sensors and communication modules. The management apparatus automatically calculates the height difference and determines appropriate refrigerant transport capacity settings without requiring manual worker input, thereby eliminating time consumption while ensuring proper capacity maintenance through accurate automated calculations.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical input method with an automated information acquisition system using sensors (e.g., atmospheric pressure sensors, GPS) and communication modules. This substitution eliminates the need for workers to manually enter height data, automatically capturing and processing height information to determine refrigerant transport capacity settings, thereby ensuring both time efficiency and reliable capacity maintenance.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP3604955B1System for setting height differences
Publication Date: 2026.01.28 DAIKIN INDUSTRIES LTD
  • EP3604955B1 patent drawingFigure 1
  • EP3604955B1 patent drawingFigure 2
  • EP3604955B1 patent drawingFigure 3

AI summary

Provided is a height difference setting system capable of setting a transport capacity of refrigerant in an appropriate state. A height difference setting system (1) is constituted by a plurality of components. Information is communicated between the components, and accordingly a height difference between an outdoor unit (8) and an indoor unit (9) that constitute an air conditioner (7) installed on or in a building (6) is set. The height difference setting system (1) includes components that function as an outdoor unit height information obtaining unit (2), an indoor unit height information obtaining unit (3), a height difference setting unit (4), and a transport capacity adjusting unit (5). The outdoor unit height information obtaining unit (2) and the indoor unit height information obtaining unit (3) obtain outdoor unit height information indicating a height of an installation place of the outdoor unit (8) and indoor unit height information indicating a height of an installation place of the indoor unit (9), respectively. The height difference setting unit (4) sets a height difference between the outdoor unit and the indoor unit on the basis of the outdoor unit height information and the indoor unit height information. The transport capacity adjusting unit (5) adjusts a transport capacity of refrigerant to be transported from the outdoor unit to the indoor unit on the basis of the height difference set by the height difference setting unit (4).