Magnetic line and current direction visual generator model

A technology of generator model and current direction, applied in the field of teaching demonstration instrument

Pending Publication Date: 2019-05-07
张嘉馨
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a generator model with visualized magnetic force lines and current direction, which solves the problem that the existing generator model is not intuitive, the current direction and magnetic force lines are invisible, and the demonstration effect is poor etc. to overcome the defects in the prior art

Method used

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  • Magnetic line and current direction visual generator model
  • Magnetic line and current direction visual generator model
  • Magnetic line and current direction visual generator model

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Embodiment Construction

[0021] In order to further understand the structure, features and other purposes of the present invention, the specific implementation manners of the embodiments of the present invention will be described below with reference to the accompanying drawings, which are only used to illustrate the technical solutions of the present invention, not to limit the present invention.

[0022] refer to figure 1 and figure 2 , a generator model for visualization of magnetic force lines and current directions, including a closed transparent box 1, a rotating device 2 is arranged outside the box body 1, and the rotating device 2 is a hand-cranked handle or a rotating motor. In this embodiment, it is preferably Rotate the motor. The rotating shaft 3 of the rotating device 2 extends into the box 1 and connects with a coil 4, which is a flat frame. A magnetic field simulation device 10 is provided on both sides of the coil 4, and a running water light strip 5 for simulating and displaying th...

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Abstract

The invention relates to a magnetic line and current direction visual generator model. The model comprises a box, a rotating device is arranged outside the box, and a rotating shaft of the rotating device extends into the box to be connected with a coil, magnetic field simulating devices are arranged on the two sides of the coil respectively, a running water lamp belt used for simulating and displaying current is arranged on the coil, and a positive pole and a negative pole of the running water lamp belt are respectively connected with the left side and the right side of the rotating shaft, the rotating shaft is a conductive body, strip-shaped insulating strips are arranged on the upper side and the lower side of the rotating shaft respectively, electric brushes are in abutted connection with the left side and the right side of the rotating shaft respectively, and a binding post is connected to the lower portion of each electric brush, and the two binding posts are connected with a positive pole and a negative pole of a power supply module respectively. Accordingly, during the exhibition, students can clearly and visually see how the direction of the coil current changes when the coil moves through the running water lamp belt, and the students can learn and understand conveniently.

Description

technical field [0001] The invention relates to the technical field of teaching demonstration instruments, and more specifically refers to a generator model with visualized magnetic force lines and current directions. Background technique [0002] Alternator is an application of the law of electromagnetic induction in physics. It is often used in teaching to demonstrate and inform students about the principle of alternating current generation and the change of current direction. Traditional textbooks explain the principle of alternating current, current direction, magnetic force lines and other knowledge in the form of pictures and texts. Even if it is a model demonstration, because the concept of alternating current is too abstract, the current direction and magnetic force lines are invisible to the naked eye and can only be understood by imagination. , can not form perceptual cognition, therefore, it is difficult for students to learn, and the teaching efficiency is low. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/18
Inventor 张嘉馨
Owner 张嘉馨
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