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Temperature control method and device for intelligent power module and air conditioner

A technology of intelligent power module and temperature control method, which is applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc. The effect of increasing the cooling rate and reducing the risk of temperature overshoot

Active Publication Date: 2019-11-29
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the present invention is that in the state of poor heat dissipation, the temperature overshoot risk of the intelligent power module is relatively large when using the existing frequency reduction and temperature reduction method

Method used

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  • Temperature control method and device for intelligent power module and air conditioner
  • Temperature control method and device for intelligent power module and air conditioner
  • Temperature control method and device for intelligent power module and air conditioner

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Embodiment Construction

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0051] The present invention provides a temperature control method of an intelligent power module.

[0052] figure 1 It is a schematic flowchart of an embodiment of a temperature control method for a smart power module of the present invention.

[0053] The temperature control method of the smart power module includes:

[0054] Step S10, detecting the temperature of the smart power module;

[0055] In the normal operation of the air conditioner, the temperature of the smart power module (hereinafter referred to as the module temperature) is collected in real time, and the temperature of the module can be sampled in real time through the built-in temperature detection device in the smart power module, and the sampling signal is tr...

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Abstract

The invention provides a temperature control method and device for an intelligent power module and an air conditioner. The method comprises the steps as follows: detecting temperature of the intelligent power module; acquiring a corresponding detection moment when the temperature of the intelligent power module is increased to be higher than or equal to a preset temperature threshold; acquiring the number of occurrence when the intelligent power module temperature is increased to be higher than or equal to the preset temperature threshold in a first preset duration before the detection moment;enabling frequency of a compressor to abruptly drop to preset frequency when the number of occurrence is larger than the preset number. The temperature overshoot risk of the intelligent power modulecan be reduced, and the damage probability of the intelligent power module is reduced.

Description

Technical field [0001] The present invention relates to the technical field of air conditioning control, and in particular to a temperature control method and device of a smart power module, and an air conditioner. Background technique [0002] The intelligent power module (IPM) in the air conditioning system is the main component that controls the operation of the compressor. In the process of controlling the operation of the compressor, the temperature of the intelligent power module will rise. In order to avoid the damage of the intelligent power module due to excessive temperature, the intelligent power module is usually monitored The temperature of the power module, set the frequency reduction temperature threshold, when the temperature of the intelligent power module is greater than the frequency reduction temperature threshold, the compressor is slowly and uniformly reduced, and when the temperature of the intelligent power module is lower than the preset temperature thresh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/32F24F11/64F24F11/86F24F11/88
CPCF24F11/32F24F11/64F24F11/86F24F11/88
Inventor 王知恒李超胡立志
Owner NINGBO AUX ELECTRIC
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