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Half-bridge module with precise temperature detection

A technology of temperature sensors and arrays, which is applied to the temperature measurement of motors, the application of thermometers, and the parts of thermometers, etc., can solve the problems of excessive size and cost of driving converters, and prevent excessive cost Size, optimized design, to achieve the effect of power increase

Pending Publication Date: 2022-05-27
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in order to ensure the safe operation of the transistors in the power semiconductors, sufficient safety is provided with regard to the operating temperature, which leads to costly oversizing of the power semiconductors and the entire drive converter

Method used

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  • Half-bridge module with precise temperature detection
  • Half-bridge module with precise temperature detection

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Embodiment Construction

[0043] Figure 1An embodiment of the temperature sensor array 1 according to the present invention is shown. Temperature sensor array 1 has a plurality of temperature sensors 2, 3, 4. In the illustrated embodiment is provided fifteen temperature sensors 2, 3, 4.

[0044] Temperature sensors 2, 3, 4 are implemented, for example, as positive temperature coefficient resistors or PTC thermistors, and thus have a positive temperature coefficient. Here, the resistance is directly temperature dependent. Alternatively, the temperature sensor array 1 temperature sensor 2, 3, 4 may also be implemented in the form of thermistor, thermocouple and the like.

[0045] Temperature sensors 2, 3, and 4 are arranged in three rows and electrically connected by connection terminals or connection lines A-L. Two connection terminals A-L are connected to each temperature sensor 2, 3, and 4 in order to measure the resistance of the temperature sensor 2, 3, and 4.

[0046] In order to minimize the number o...

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PUM

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Abstract

The invention relates to a half-bridge module having two switching cells, each of which comprises a plurality of transistors, in particular IGBTs or MOSFETs, connected in parallel and / or in series, the transistors being arranged on a first substrate, the half-bridge module having a temperature sensor array having a plurality of temperature sensors, the temperature sensor is thermally connected to the transistor at least in some regions. In addition, the invention also relates to a temperature sensor array.

Description

Technical field [0001] The present invention relates to a half-bridge module having two switching units and a temperature sensor array, the switching unit comprises a plurality of parallel and / or series connected transistors, in particular IGBTs or MOSFETs. Background [0002] Currently manufactured electric vehicles have a drive converter or inverter in order to drive the motor, the drive converter or inverter converts the DC current of the power battery into an AC current suitable for the motor or a three-phase current. This drive converter mainly includes intermediate circuit capacitors, power semiconductors, driver circuit boards and controller circuit boards. Preferably, the drive converter for electric vehicles is constructed into a three-phase. [0003] Power semiconductors are often constructed as bridge rectifiers, such as the so-called B6 bridge rectifiers, and have multiple transistors. Due to low yields or high scrap rates in manufacturing, in particular, silicon ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/00H02M1/088G01K7/02G01K7/22
CPCH02M7/003H02M1/088G01K7/22G01K7/02G01K1/026G01K2205/00G01K7/24H01L2224/48227H01L2224/0603H01L2224/49111H01L2224/4917H02M3/158G01K7/16H02M1/327
Inventor D·鲁珀特
Owner AUDI AG