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A method for judging whether the cooling system can meet the cooling requirements of the power electronic box

A technology of power electronic box and cooling system, applied in measuring devices, instruments, etc., can solve problems such as waterway leakage, pipeline blockage, water pump stall, etc., and achieve the effects of high reliability, low cost, and easy realization.

Inactive Publication Date: 2016-12-07
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The pipelines of the cooling system in the prior art are relatively long, which are prone to failures such as water pump stalling, pipeline blockage, water leakage, and air bubbles in the cooling liquid circuit. Causes the cooling system to fail to achieve the expected cooling effect, reducing the performance of the electric drive system

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  • A method for judging whether the cooling system can meet the cooling requirements of the power electronic box
  • A method for judging whether the cooling system can meet the cooling requirements of the power electronic box
  • A method for judging whether the cooling system can meet the cooling requirements of the power electronic box

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Embodiment Construction

[0020] The specific implementation manners of the present invention will be described in further detail below with reference to the accompanying drawings. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects of the embodiments.

[0021] figure 1 is a schematic diagram of the installation of the temperature sensor of the cooling system according to the embodiment of the present invention. Such as figure 1 As shown, the power electronics box (PEB, Power Electronics Box) includes a power device IGBT (Insulated Gate Bipolar Transistor), and the IGBT includes a chip and a substrate, wherein the substrate is arranged at the bottom of the chip, and a water cooling plate is arranged at the bottom of the substrate. The cooling system passes The coolant passing through the water-cooled plate cools the PEB.

[0022] According to one embodiment, a temperature sensor T1 ca...

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Abstract

The invention discloses a method for judging whether a cooling system can meet the cooling requirements of a power electronic box PEB. The power electronic box includes a power device IGBT, and the IGBT includes a chip and a substrate, wherein the substrate is arranged at the bottom of the chip, and a water cooling plate is arranged at the bottom of the substrate, and the cooling system cools the PEB through the cooling liquid passing through the water cooling plate.

Description

technical field [0001] The present invention relates to the fault diagnosis technology of the cooling system of the motor drive system of the new energy vehicle, especially the electric vehicle, and especially relates to a method for judging whether the cooling system can meet the cooling requirements of the power electronic box, thereby diagnosing the cooling system in the water cycle. A problem occurred during the process. Background technique [0002] In order to ensure the performance of the electric drive system of an electric vehicle, its cooling system needs to work normally and efficiently. The current electric drive system generally adopts water-cooling mode, and its water-cooling circulation path includes: condensate water tank—electric water pump—motor controller (power electronic box)—motor—condensate water tank, please refer to Figure 1 of the present invention. [0003] The cooling system in the prior art has long pipelines, which are prone to failures such as...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/00
Inventor 韩永杰杨乐军张恒
Owner SAIC MOTOR