Refrigerant circulation device and pump unit
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Solution Overview
Problem
In refrigerant circulation devices with multiple mounting portions, accurately identifying which pump assembly is mounted to each position is challenging, necessitating precise recognition to ensure proper control and operation.
Innovation Solution
A refrigerant circulation device with a controller that periodically specifies the mounted state of pump assemblies to different mounting portions, using signal processing to determine and control the assemblies based on their specified states, ensuring accurate operation and refrigerant flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple mounting portions are provided in the chassis, then the adaptability and versatility of the refrigerant circulation device are improved, but the difficulty of detecting and measuring the mounted state increases
Solution Approach 1:
The chassis is divided into multiple mounting portions (first mounting portion and second mounting portion) at different positions, allowing the pump assembly to be flexibly mounted at different locations. Each mounting portion is equipped with separate detection functionality, segmenting the detection task into manageable parts that can independently identify their mounted state.
Solution Approach 2:
The controller executes specification processing that repeatedly specifies the mounted state of the pump assembly to different mounting portions at time intervals. This feedback mechanism continuously monitors and confirms the mounted state, allowing the system to adaptively recognize which mounting portion the pump assembly is currently attached to, thereby resolving the detection difficulty despite multiple mounting options.
2Ease of operation
If the pump assembly is detachably mounted to multiple mounting portions, then the ease of operation and maintenance are improved, but the reliability of accurate mounted state identification deteriorates
Solution Approach 1:
The system performs preliminary specification processing to determine the mounted state before initiating pump operations. The controller repeatedly specifies the mounted state at time intervals, ensuring that the pump assembly is correctly identified and positioned before it begins pressure-feeding refrigerant, thereby maintaining reliability despite detachable mounting.
Solution Approach 2:
Continuous feedback through repeated specification processing confirms the mounted state throughout operation. This ongoing verification ensures that even though the pump assembly can be detached and reattached, the system reliably identifies the current mounting portion and maintains accurate control based on the confirmed mounted state.
Data Source
AI summary
A refrigerant circulation device includes a chassis, a pump assembly, mounting portions, and a controller. The chassis includes a flow path of refrigerant. The mounting portions are provided at different positions in the chassis. The pump assembly is detachably mounted to each of the mounting portions. The controller is configured or programmed to execute specification processing to specify a mounted state of the pump assembly to any one of the mounting portions multiple times at time intervals, and control the pump assembly mounted to the mounting portions based on the mounted state specified in the specification processing. The pump assembly pressure-feeds the refrigerant to the flow path under the control of the controller.