Temperature control device and method applicable to automobile head-up display device

Abstract

The invention provides a temperature control device and method applicable to an automobile head-up display device. The temperature control device comprises an upper plastic housing, a lower metal housing, a semiconductor cooler, a fan, cooling fins, a heat-conducting adhesive, temperature sensors and a control circuit, wherein the control circuit is located on a main circuit board, one side of the semiconductor cooler is bonded with a core display chip on the main circuit board through the heat-conducting adhesive, the other side of the semiconductor cooler is bonded with the lower metal housing through the heat-conducting adhesive, and the control circuit is connected with the temperature sensors, the fan and the semiconductor cooler respectively. The invention further provides a method utilizing the device to perform temperature control. The temperature control device has the advantages of being simple in structure, wide in temperature control range, high in response speed, low in overall cost and the like.

Description

technical field [0001] The invention belongs to the technical field of temperature control, and is a temperature control device suitable for automobile head-up display equipment, which is used to control the internal temperature of the equipment so that it can work in an external environment with a wide temperature range. Background technique [0002] Temperature is one of the common and very important parameters in industrial production, especially in metallurgy, petroleum, food, printing and dyeing factories. With the rapid development of electronic technology and microcomputer, temperature measurement and control technology has been developed rapidly and widely used. [0003] For small devices with high temperature requirements, considering functions, costs, structural space, power consumption, etc., it has always been difficult and important to develop a practical temperature control system. With the popularity of the Internet of Vehicles, the application of car head-up...

AI Technical Summary

Problems solved by technology

However, how to design an automotive head-up display that meets the temperature requirements of the automotive working environment is a very important issue, especially the core display chip in the automotive head-up display. The recommended operating temperature of LCOS, DMD, and MEMS is generally 0°C~70°C. The requirements for the working environment temperature of automobiles are -40°C~+85°C, and the challenges are huge

At present, the common temperature control scheme is simple to use heat sink and fan for heat dissipation, and the complicated one is to use a dedicated temperature controller. The simple scheme cannot meet the requirements of the working environment temperature of the car -40℃~+85℃, which is complicated. However, it has the disadvantages of being too large or expensive

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