Shutter switcher applied to infrared thermal imager technologies

Abstract

The present invention provides a shutter switcher applied to infrared thermal imager technologies. The shutter switcher comprises a blocking sheet, a swing shaft, pressing sheets, screws, a mandrel, a magnet, U-shaped iron bars, coils, a mounting bottom plate, a cover frame, a wiring board and a wiring connector; the shutter switcher is composed of a driving part, an executing part and a mounting part; the shutter switcher is driven by a magnetic force, action fatigue and failure do not occur on the shutter switcher, and therefore, the reliability of the product is greatly improved, and the service life of the product is greatly prolonged; the shape of the product is designed to be flat, so that the assembly space of a finished product can be greatly saved, and the assembled finished product can be small and light; the switcher is provided with a positioning mechanism; the switcher adopts a multi-coil driving mode, so that the performance of the product can be effectively improved; the rotation shaft is designed into a structure of which the shaft arm is short, and therefore, acting torques are reduced, the anti-vibration ability of the product can be greatly enhanced; and the blocking sheet is fixed through the screws, so that operating efficiency can be improved, energy can be saved, and the anti-vibration and anti-shock capacity of the product can be enhanced. Thus, the shutter switcher has a very high application to promotion value.

Description

technical field [0001] The invention relates to the technical field of infrared thermal imaging cameras, in particular to a shutter switcher for infrared thermal imaging camera technology. Background technique [0002] The current infrared thermal imaging technology mainly consists of the following four driving methods, each of which has relatively large problems. The first shutter driving structure uses a micro DC motor to directly drive the shutter baffle. Due to the small driving force of the micro DC motor in this shutter driving structure, it is easy to cause the phenomenon that the shutter baffle does not move or moves smoothly during the movement process. The second shutter driving structure is to use a micro DC motor and a precision reduction box to jointly drive the shutter baffle. Due to the small matching tolerance of the gears of the precision gear box in this kind of shutter drive structure, in the environment of temperature changes, the precision gear box is l...

AI Technical Summary

Problems solved by technology

Since the spring force of this shutter driving structure will change with temperature changes, it is easy to cause the shutter baffle to fail to operate in an environment with temperature changes.

The fourth type uses a single magnetic valve to drive a single shutter plate. The large size of the shutter drive is not conducive to the miniaturization of the product, resulting in the infrared thermal imaging lens being too large and heavy

This type can only solve the size problem, because the shutter block is highly bonded, the product stability is very poor, high and low tempe

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