Portable DC motor experiment box

Abstract

The invention provides a portable DC motor experiment box which comprises a box body as well as an instrument main panel, a controller, an A / D (analog to digital) conversion unit, a power supply, a switch unit, a DC meter unit, an adjustable resistor unit, a motor, a velocity measurement unit, a camera unit, a keyboard and an LCD. The DC motor experiment box has the following advantages: the box is small in size and light in weight, is convenient to move and carry and can be used in occasions with 220V AC, such as a laboratory, a classroom and the like; the box is convenient to maintain, and the experimental box is designed by adopting a general purpose instrument, so that a user can purchase and change the general purpose instrument conveniently; the box is low in price and small in occupied space, the experimental effect of every students is ensured is easily achieved in a way that one person is included in one group in an experiment process; the box has the functions of protection and early warning, and the experimental box has the functions of audible and visual warning and protection for electric leakage, overcurrent and overvoltage, so that the electric shock of a staff in anexperiment and the damage of a module can be prevented; a teacher can monitor, play back and evaluate the experiment process of every student conveniently; the teacher can query and check data of theexperiment process conveniently, so that the students can be prevented from plagiarizing each other.

Description

technical field [0001] The invention belongs to the technical field of experimental equipment, in particular to a portable DC motor experiment box. Background technique [0002] "Electrical Engineering" is the main course of electrical, automation and other majors. At present, most domestic colleges and universities and vocational technical colleges have set up related courses such as "Electrical Engineering", "Motor and Drive" and "Motor Control". At present, schools generally use "motor and electrical technology experiment benches" produced by domestic professional teaching instrument manufacturers such as "Tianhuang" and "Qiushi" as experimental teaching equipment. Traditional experimental benches have disadvantages such as large size, high price, difficult maintenance, and inconvenient movement. Due to the limitation of laboratory space, each laboratory can only be equipped with about 10 benches. During experiments, 3-5 people often share a bench. The experimental effec...

AI Technical Summary

Problems solved by technology

Traditional experimental benches have disadvantages such as large size, high price, difficult maintenance, and inconvenient movement. Due to the limitation of laboratory space, each laboratory can only be equipped with about 10 sets. During experiments, 3-5 people often share a test bench. The experimental effect is poor, and it is difficult to objectively evaluate each person's experimental operation

In recent years, some manufacturers have also introduced miniaturized "motor control experiment boxes", which mainly include control boards, drive boards and control motors. The experimental objects are mainly brushless DC motors, permanent magnet synchronous motors, asynchronous motors, etc. , more suitable for the design and debugging of motor control algorithms, not suitable for the experimental teaching of motor principles and characteristics

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