Temperature sampling device and system

Abstract

The invention belongs to the technical field of temperature measurement, and particularly relates to a temperature sampling device and system. The system is connected with a temperature acquisition module which is used for generating an original temperature signal, and comprises a temperature detection module, a temperature sampling module, an enabling module, a temperature amplification module and a control module. A temperature detection module generates a temperature amplification signal according to the original temperature signal. The temperature sampling module generates a first temperature sampling signal according to the temperature amplification signal. The enabling module generates an enabling signal according to the switching signal, wherein the enable signal comprises an opening signal and a closing signal. The temperature amplification module amplifies the temperature amplification signal according to the starting signal to generate a second temperature sampling signal. The control module generates a switching signal and generates temperature information according to the first temperature sampling signal or the second temperature sampling signal, so that hardware of atemperature sampling device of the motor does not need to be changed manually when different types of temperature measurement resistors are adopted to perform temperature acquisition on the motor, andthe risk that errors are easy to occur when components are changed manually is avoided.

Description

technical field [0001] The invention belongs to the technical field of temperature measurement, in particular to a temperature sampling device and system. Background technique [0002] With the development of the new energy electric vehicle industry, the speed and mileage requirements of pure electric vehicles are getting higher and higher, which has higher requirements for the temperature and heat dissipation of the motor, which requires real-time monitoring of the temperature of the motor. In order to avoid excessive temperature of the motor, damage to the motor, affect the life and reliability of the motor, and affect the use of the entire electric vehicle. Accurately estimating and detecting the temperature rise of the motor can not only ensure the safe operation of the motor, but also have important practical significance for improving the service life of the motor, saving raw materials and electric energy, and realizing automatic design. [0003] At present, different...

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a temperature sampling device and system, aiming to solve the problem existing in the traditional technical solution that the hardware of the temperature sampling device of the current motor needs to be adjusted when different motors are adapted to different types of temperature measuring resistors. Different types of temperature measuring resistors can be adapted to different motors only by manual changes. There are problems of poor compatibility of temperature sampling devices and error-prone manual changes.

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