Heat pump system and control method of a heat pump system

By monitoring the motor winding and lubricating oil temperatures in real time within the heat pump system and dynamically adjusting the cooling medium flow rate, the conflict between the cooling demands of the motor and lubricating oil under high load conditions in high-temperature heat pumps is resolved, achieving efficient cooling and stable equipment operation.

CN122408302APending Publication Date: 2026-07-17GUANGDONG TCL INTELLIGENT HEATING & VENTILATING EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG TCL INTELLIGENT HEATING & VENTILATING EQUIP CO LTD
Filing Date
2026-05-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing centrifugal compressor cooling systems are insufficient to meet the dual heat dissipation requirements of the motor and lubricating oil under high-temperature heat pump high-load scenarios, resulting in inadequate cooling capacity.

Method used

Design a heat pump system including a unit module, a motor cooling module, an oil cooling module, a flow regulation module, a heat dissipation supply module, a temperature monitoring module, and a control module. By monitoring the motor winding temperature and lubricating oil temperature in real time, the system dynamically adjusts the flow rate of the cooling medium to achieve on-demand cooling of the motor and lubricating oil.

Benefits of technology

It improves cooling efficiency, reduces system energy consumption, extends equipment lifespan, and ensures stable operation of the heat pump system under harsh conditions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122408302A_ABST
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Abstract

The application relates to the technical field of heat pumps, in particular to a heat pump system and a control method of the heat pump system. The heat pump system comprises a unit module, a motor cooling module, an oil cooling module, a flow adjusting module, a heat dissipation supply module, a temperature monitoring module and a control module. The unit module comprises a motor unit and a lubricating oil unit. The motor cooling module is configured to absorb heat generated when the motor unit operates; the oil cooling module is configured to cool heat in the lubricating oil unit circuit; the heat dissipation supply module is configured to supply cold to the motor cooling module and the oil cooling module through a cooling medium; and the control module is configured to acquire a motor winding temperature and a lubricating oil temperature detected by the temperature monitoring module, and provide a flow adjusting signal based on the motor winding temperature and the lubricating oil temperature, so as to control the flow adjusting module to adjust the flow of the cooling medium input to the motor cooling module and the oil cooling module. The application realizes on-demand cooling of different heat generating components, and improves the cooling efficiency.
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