Constant-temperature device

Abstract

The invention discloses a constant-temperature device. The constant-temperature device comprises a closed box body, a heat source device and a flow guide device, wherein the flow guide device comprises a bottom plate parallel to the top wall of the box body, and an extension plate; a gap is formed between the bottom plate of the flow guide device and the top wall of the box body to form a rectification region; the position of the air outlet of the heat source device is close to one end of the extension plate, and the other end of the extension plate is connected to the middle of the length direction of the bottom plate of the flow guide device so as to connect the air outlet to the rectification region; a first speed reducer is arranged in the rectification region of the flow guide device,wherein the first speed reducer is composed of a left speed reduction area and a right speed reduction area; a plurality of first flow guide plates of the left speed reduction area form an interlayerstructure; a plurality of second flow guide plates of the right speed reduction area form an interlayer structure; each of the first flow guide plate and the second flow guide plate is composed of aflow guide main body and an inclined surface, wherein an acute angle is formed between the inclined surface and the middle of the blowing-in direction of the airflow flowing into the rectification region. The constant-temperature device can uniformly disperse a top heat source into the closed box body.

Description

technical field [0001] The invention relates to the field of LED aging, in particular to a constant temperature device for LED aging. Background technique [0002] In the LED industry, high-temperature aging is an important LED performance test method. It can accelerate the aging of lamp beads, and can also simulate important indicators such as the high-temperature resistance of lamp beads in different temperature (generally high temperature) environments. Because LED lamp beads are more sensitive to temperature, when the ambient temperature distribution is uneven, the light decay time and light decay amplitude will be affected, which makes the experimenters misjudge the experimental data, increase the workload, and waste manpower and energy. physical resources. [0003] The incubator of prior art, as attached figure 1 As shown, it includes a closed box body 1 and a heating fan 2, and the heating fan 2 has an air outlet 22 leading to the box body 1; the heating fan 2 has a...

AI Technical Summary

Problems solved by technology

However, when the heat source is placed on the wide side, it is necessary to increase the power of the blower to ensure that the hot air from the heat source is transmitted from the right side to the left side to complete heat convection. Increased air supply power and high wind speed will affect the aging of the whole lamp data

Even if the baffle in the patent is used, the temperature of the entire incubator cannot be guaranteed to be uniform. This is because the heat source is too far away from the box, and the baffle is not well designed. If you want to ensure uniform temperature, its size will be close to the length of the entire box. Inconvenience to design and installation

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