Shutoff control system for compression apparatus, heat-pump apparatus, device and driving system
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Solution Overview
Problem
Existing systems for shutting off compression apparatuses in air conditioning and heat-pump systems are inefficient, slow, and prone to failure due to reliance on multiple components, leading to safety risks when one component is damaged.
Innovation Solution
A shutoff control system that includes a pressure switch apparatus and a control apparatus to directly control the driving apparatus to shut off the compression apparatus upon detecting overpressure, eliminating the need for software logic judgment and reducing component reliance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the existing multi-component control system is used to shut off the compression apparatus, then the system can be controlled through software logic, but the response speed is slow and the reliability is reduced when any component is damaged
Solution Approach 1:
The patent extracts the critical shutoff function from the complex multi-component control system and implements it through a dedicated hardware circuit board. This circuit board directly monitors pressure switch signals and controls the contactor coil, bypassing the software logic in the main control board. By separating this safety-critical function into a standalone hardware component, the system achieves faster response and improved reliability without requiring all original components to function.
Solution Approach 2:
The patent introduces a new control circuit board as an intermediary between the pressure switch and the contactor coil. This intermediary hardware component receives signals from the pressure switch and directly actuates the contactor coil to shut off power to the compression apparatus. This intermediary layer provides a dedicated, fast-response pathway that is independent of the main control board's software processing, thereby improving shutoff reliability and speed.
2Speed
If the existing control system is used, then software logic can be applied for control, but the shutoff response speed is slow
Solution Approach 1:
The patent replaces the software-based control mechanism with a hardware-based electrical control system. The new control circuit board uses direct electrical signal processing to detect pressure switch signals and immediately actuate the contactor coil, eliminating the delays associated with software reading, processing, and execution. This substitution of hardware for software in the critical shutoff pathway dramatically increases response speed while maintaining control functionality.
3Reliability
If multiple components are used in the control system, then control functionality can be achieved, but the system fails when any one component is damaged
Solution Approach 1:
The patent implements beforehand cushioning by creating a redundant, independent hardware control pathway that does not depend on the main control board or its software. The new control circuit board provides a backup shutoff mechanism that remains functional even if the main control board fails. This prior cushioning ensures that the safety-critical shutoff function is protected against component failures, improving the system's ability to tolerate damage.
Data Source
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AI summary
A shutoff control system for the compression apparatus includes a pressure switch apparatus and a control apparatus. The pressure switch apparatus is configured to be shut off when a pressure of a system is detected to be overpressured, and output a shutoff signal. The control apparatus is connected to the pressure switch apparatus, and is connected to a driving apparatus of the compression apparatus when the control apparatus is in use. The control apparatus is configured to output a first driving signal to the driving apparatus, and stop outputting the first driving signal after the control apparatus receives the shutoff signal. The first driving signal is configured to instruct the driving apparatus to drive the compression apparatus. In this disclosure, the efficiency and success rate of shutting off the compression apparatus can be improved, and the safety factor of air-conditioning systems and heat-pump systems can be improved.