Device for realizing rapid visualization of internal circuit of teaching experiment module

Abstract

The invention discloses a device for realizing rapid visualization of an internal circuit of a teaching experiment module. The device comprises a shielding case body, a shielding cover body and a shielding assembly, wherein the shielding case body comprises a cavity for accommodating a circuit board; the opening surface of the shielding case body is provided with an opening; the shielding cover body is hinged to the opening surface of the shielding case body; and the shielding assembly is mounted on the contact surface between the shielding cover body and the opening surface of the shielding case body. On the basis of solving the possible problems of power short circuit danger and dust accumulation due to falling of metal objects such as screws and the like, and the electromagnetic compatibility problem, in a teaching process, a student can conveniently open an upper cover by directly using a hand without aid of any tool such as a screwdriver, a spanner or the like, and then intuitively observe the specific structure of the internal circuit board, so that the perceptual understanding of the student on the circuit is enhanced, and the interactivity and the teaching effect of a teaching experiment process are enhanced. The upper cover can be conveniently closed and fastened by directly using the hand after being observed, and the shielding protection of the circuit is restored.

Description

technical field [0001] The invention relates to the field of teaching experiment devices, in particular to a device for quickly visualizing the internal circuits of a teaching experiment module. Background technique [0002] In electronic information teaching experimental equipment, such as high-frequency electronic circuit teaching experiment box, microwave circuit teaching experiment box, etc., in order to deepen students' understanding of knowledge points, improve the effect of teaching experiments, and cultivate students' engineering awareness and perceptual cognition of circuits , it is necessary to allow students to visually observe the internal structure of the circuit during the teaching experiment. [0003] In the current plan, the structure of the relevant teaching experiment circuit generally has the following methods: one is a coverless structure with completely exposed circuit boards, the other is a semi-enclosed cover structure using transparent materials as th...

AI Technical Summary

Problems solved by technology

Circuits are susceptible to electromagnetic radiation interference, and unit circuits that can generate electromagnetic wave signals are also prone to electromagnetic radiation, which interferes with other circuits

For active circuits that require power supply, the open structure has the risk of short circuit due to the falling of metal objects such as screws

In addition, it is easy to accumulate dust, and the dust falling into the circuit is difficult to remove, and it is also easy to generate static electricity. The generated static electricity is a major hidden danger to the reliability of the circuit. Static electricity affects the circuit performance and even damages the circuit;

[0005] The transparent material is used as the semi-enclosed cover structure of the upper cover of the circuit module. Although it solves the possible problem of power short circuit and dust accumulation due to the falling of metal objects such as screws, it cannot solve the problem of electromagnetic compatibility, and the circuit is easily affected by electromagnetic waves. Radiation interference, the unit circuit that itself can generate electromagnetic wave signals is also prone to electromagnetic radiation, which interferes with other circuits;

[0006] The fully enclosed shielding structure is adopted, and at the same time, it solves the possible risk of short circuit of the power supply, dust accumulation and electromagnetic compatibility problems caused by the falling of metal objects such as screws, but students cannot observe the circuit conveniently and intuitively during the teaching process. Internal structure, poor teaching effect

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