Control system and air conditioning system
By using the hardware control system of the main control board and the frequency converter drive board, the connection between the drive power supply and the load working module is disconnected by the high-pressure switch, which solves the problems of arcing and contact sticking when the high-pressure switch is disconnected in the air conditioning system, and realizes safe and reliable load shutdown and low-cost system control.
CN224534437UActive Publication Date: 2026-07-21GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GD MIDEA HEATING & VENTILATING EQUIP CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
Existing air conditioning systems are prone to arcing and contact sticking when the high-pressure switch is disconnected, and the software judgment method is not reliable enough, resulting in safety and cost problems.
Method used
The hardware control system employs a main control board, a frequency converter drive board, and a high-pressure switch. By disconnecting the drive power supply from the load working module through the high-pressure switch, the load can be directly stopped, avoiding arcing and contact sticking. Multi-channel redundant monitoring is used to improve reliability.
Benefits of technology
It enables safe and reliable shutdown of the load, reduces costs, improves system stability and security, and reduces the complexity of fault detection.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224534437U_ABST
Abstract
The utility model relates to a kind of control system and air conditioning system.Control system includes main control board, frequency conversion drive board and high pressure switch, frequency conversion drive board includes drive power supply and load working module, load working module is used to connect with load, drive power supply is used to provide drive voltage to load working module, high pressure switch is electrically connected with main control board and frequency conversion drive board, main control board is electrically connected with frequency conversion drive board;In the case where the pressure of air conditioning system is greater than set pressure, high pressure switch disconnects to make drive power supply and load working module disconnect, so as to make load stop.The above-mentioned control system can directly cut off the operation of load from hardware, realize safety protection stop, low cost and high reliability.Meanwhile, it also solves the safety problem caused by connecting high pressure switch to high-voltage circuit of frequency conversion drive board.
Need to check novelty before this filing date? Find Prior Art