CN201054199Y

CN201054199Y - Static induction demonstration motor

Info

Publication number: CN201054199Y
Application number: CNU2007201230059U
Authority: CN
Inventors: 杨再华; 余龙权; 李欢; 李文杰; 杨阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-11
Filing date: 2007-06-11
Publication date: 2008-04-30
Anticipated expiration: 2017-06-11

Abstract

The utility model discloses an electrostatic induction demonstration motor, which belongs to an electrics teaching aid; the utility model aims at providing a device which can visually, visibly, and interestingly demonstrate the electrostatic induction phenomenon. The utility model comprises a rotor; an insulated rotor (1) is installed on a casing (3) provided with a high voltage generator (4) inside through a fixed axle (6), a positive discharge needle (2) and a negative discharge needle (5) extending from the casing (3) are respectively connected with the positive electrode and the negative electrode of the high voltage generator (4) and are arranged in misplacement and opposite direction along the tangential line direction of the rotor (1). The utility model can interestingly and visually demonstrate the physical phenomenon that an object with high voltage static generates the electrostatic induction to peripheral objects to lead the students to well master the relative knowledge through interesting experiments, therefore, the purpose of improving teaching quality and popularizing scientific popular knowledge can be realized; the utility model is the ideal electrics teaching aid.

Description

Electrostatic induction demonstration motor

Technical field:

The utility model relates to a kind of physics teaching or science popularization apparatus for demonstrating, relates in particular to a kind of device that is used to demonstrate the electrostatic induction phenomenon.

Background technology:

As everyone knows, the object that has high-pressure electrostatic can make its identical static of object induction polarization on every side, and this physical phenomenon is the important content in physics teaching in secondary school or the Popular Science Education.How image, reflect that above-mentioned physical phenomenon is the technical matters that current physics teaching or Popular Science Education should solve intuitively, enjoyably.

Summary of the invention:

At the above-mentioned defective that exists in the prior art, the utility model aim to provide a kind of can image, demonstrate the electrostatic induction demonstration motor that high-pressure electrostatic exerts an influence to object on every side intuitively, enjoyably.

To achieve these goals, the utility model by the following technical solutions: it comprises rotor; The rotor of insulation is installed on the machine box that inside is provided with high pressure generator by dead axle, stretches out in the positive spray point that is connected with the high pressure generator positive and negative electrode, the negative spray point slave box respectively and arranges opposite to each other along the tangential direction dislocation of rotor.

Compared with the prior art, the utility model is owing to utilized the principle that the electric charge same sex is repelled each other, there is a natural attraction between the sexes dexterously, the object of therefore can be vividly, having a high-pressure electrostatic to student's demonstration intuitively can produce the physical phenomenon of electrostatic induction to object around it, make the student grasp relevant knowledge better, thereby reach the purpose of improving the quality of teaching and promoting popular science knowledge by directly perceived, interesting experiment.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view of Fig. 1.

Among the figure: rotor 1 positive spray point 2 machine boxes 3 high pressure generators 4 negative spray point 5 dead axles 6

Embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:

In Fig. 1～2: the rotor 1 of insulation is installed on the machine box 3 by dead axle 6, and rotor 1 can freely rotate around dead axle 5; Be provided with high pressure generator 4 in machine box 3, the positive spray point 2 that is connected with high pressure generator 4 positive poles, the negative spray point 5 that is connected with high pressure generator 4 negative poles stretch out in the slave box 3 respectively, and the needle point of two pins points to rotor 1.In order to increase torque, the needle point of above-mentioned two pins is arranged in opposite directions along the tangential direction dislocation ground of rotor 1.For weight reduction, rotor 1 can adopt the object such as classes such as Disposable paper cup or plastic cups.

Principle of work: when opening high pressure generator 4, positive spray point 2, negative spray point 5 are with high-pressure electrostatic immediately, will respond to and gather the identical static charge of a large amount of polarity on the surface of rotor 1 near the position of two needle points simultaneously, according to the principle that the electric charge same sex is repelled each other, there is a natural attraction between the sexes, rotor 1 rotates under the effect of charge force.

Claims

1. an electrostatic induction demonstration motor comprises rotor; It is characterized in that: the rotor of insulation (1) is installed on the machine box (3) that inside is provided with high pressure generator (4) by dead axle (6), stretches out in the positive spray point (2) that is connected with high pressure generator (4) positive and negative electrode, negative spray point (5) the slave box (3) respectively and arranges in opposite directions along the tangential direction dislocation ground of rotor (1).