Temperature control circuit of variable frequency heat pump driver

Abstract

The invention provides a temperature control circuit of a variable frequency heat pump driver. The temperature control circuit is used for controlling outputting of variable frequency heat pump driverdevices at a high temperature. The temperature control circuit comprises a first temperature detection unit, a second temperature detection unit and a main control chip. The first temperature detection unit is used for reading the temperature of an inverter bridge circuit in real time. The second temperature detection unit is used for reading the temperature of a rectifier bridge circuit and thetemperature of a power-factor correction circuit in real time. The main control chip is used for controlling outputting of the variable frequency heat pump driver according to the temperature read bythe first temperature detection unit and the temperature read by the second temperature detection unit. By adoption of the temperature control circuit of the variable frequency heat pump driver, destroying and damaging probability of the variable frequency heat pump driver devices at the high temperature is effectively reduced, the characteristics of prolonging the service life of the complete machine of the driver and reducing the failure rate of the complete machine are achieved, and the user experience of electronic heating products is improved.

Description

technical field [0001] The invention relates to a control circuit in the technical field of electric heating systems, more specifically, a temperature control circuit for a variable frequency heat pump driver. Background technique [0002] The core component of the electric heating system is the driver of the compressor heat pump. In cold weather, it is especially important for the driver to operate reliably and safely to provide continuous heating. [0003] The current protection strategy of the heat pump driver only sets the shutdown protection value, the working process is discontinuous, prone to problems such as repeated alarms and shutdowns, and the user experience is poor. Contents of the invention [0004] The object of the present invention is to propose a safe and reliable temperature control circuit for a variable frequency heat pump driver in view of the above-mentioned problems existing in the temperature control circuit of the existing variable frequency heat ...

AI Technical Summary

Problems solved by technology

[0003] The current protection strategy for heat pump drives only sets the shutdown protection value, the working process is discontinuous, prone to repeated alarm shutdowns and other problems, and the user experience is poor

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