CN210428993U

CN210428993U - Generator model with magnetic force lines and current direction visualized

Info

Publication number: CN210428993U
Application number: CN201920279182.9U
Authority: CN
Inventors: 张嘉馨
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-06
Filing date: 2019-03-06
Publication date: 2020-04-28
Anticipated expiration: 2029-03-06

Abstract

The utility model relates to a visual generator model of magnetic line of force and current direction, the power distribution box comprises a box body, the box is equipped with rotary device outward, rotary device's rotation axis extends to and is connected with the coil in the box, the coil both sides are equipped with magnetic field analogue means respectively, be equipped with the flowing water lamp area that is used for analog display electric current on the coil, the positive and negative poles in flowing water lamp area are connected respectively with the rotation axis left and right sides, the rotation axis is the electric conductor, both sides are equipped with a bar insulating strip respectively about the rotation axis, the rotation axis left and right sides is contradicted respectively and is connected with a brush, the brush below is connected with a terminal. The utility model discloses at the show in-process, when the student can clearly audio-visually see the coil motion through flowing water lamp area, how the coil current direction changes, the student of being convenient for learns to understand.

Description

Generator model with magnetic force lines and current direction visualized

Technical Field

The utility model relates to a teaching demonstration appearance technical field, the more specifically generator model that indicates that magnetic line of force and current direction are visual that says so.

Background

An alternating current generator is an application of an electromagnetic induction law in physics, and is commonly used for demonstrating and informing students of knowledge of alternating current generation principle, current direction change and the like in teaching. The traditional teaching material explains the knowledge of alternating current principle, current direction, magnetic lines and the like in a graph-text mode, even model demonstration is carried out, the concept of the alternating current is too abstract, the current direction, the magnetic lines and the like cannot be seen by naked eyes, the teaching material can only be understood by air imagination, and perceptual cognition cannot be formed, so that students are difficult to learn, and the teaching efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the deficiencies of the prior art, the utility model aims to provide a generator model with magnetic lines of force and visual direction of current, it is not directly perceived to have solved current generator model phenomenon, and direction of current and magnetic lines of force are not visual, and demonstration effect is poor scheduling problem to overcome the defect among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a generator model with visualized magnetic lines and current directions comprises a box body, wherein a rotating device is arranged outside one side surface of the box body, and a rotating shaft of the rotating device extends into the box body and is connected with a coil so as to drive the coil to rotate forwards or backwards through the rotating device; the coil is provided with a flowing water lamp belt for analog display of current, the positive pole and the negative pole of the flowing water lamp belt are respectively connected to the left side and the right side of the rotating shaft, the rotating shaft is a conductor, strip-shaped insulating strips are respectively arranged on the upper side and the lower side of the rotating shaft so as to divide the rotating shaft into two poles through the insulating strips, the left side and the right side of the rotating shaft are respectively connected with an electric brush in a butting mode, a binding post is connected below the electric brush, the two binding posts are respectively connected with the positive pole and the negative pole of a power module to provide power for the flowing water lamp belt, and the rotating shaft rotates forwards or backwards so as to switch; the two sides of the coil are respectively provided with a magnetic field simulation device, and a plurality of direct-emitting lamps for simulating magnetic lines of force are arranged on the side surface of the magnetic field simulation device facing the coil at intervals.

Preferably, the rotating device is a hand crank or a rotating motor.

Preferably, the magnetic field simulation device comprises an N-pole magnet model and an S-pole magnet model, and a plurality of direct-emitting lamps for simulating magnetic lines of force are arranged on the N-pole magnet model and/or the S-pole magnet model at intervals.

Preferably, a smoke device is arranged in the box body and used for generating smoke and clearly observing light rays of the direct-emitting lamp.

Preferably, the aerosol device is an electronic cigarette or a spray bottle.

Preferably, the box body is further provided with a magnetic line of force demonstration device, the magnetic line of force demonstration device comprises an N-pole magnet, an S-pole magnet and a plurality of rows of small pointers, the plurality of rows of small pointers are arranged on the side plate on any one side of the box body at intervals from top to bottom, and the N-pole magnet and the S-pole magnet are placed on two sides of the plurality of rows of small pointers.

Preferably, the box body is a closed transparent box body.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

1. the utility model discloses utilize the electric current direction change on the flowing water lamp area analog coil, cut apart into the two poles of the earth with the rotation axis promptly through the insulating strip, and lead power module's positive and negative electric current to the rotation axis through terminal and brush, give flowing water lamp area power supply, rethread revolving shaft corotation or reversal, thereby switch over the supply of the positive and negative two poles of the earth power in flowing water lamp area, and then control the light change in flowing water lamp area, analog coil is rotating the in-process, the change of the inside electric current direction of coil, when making the student can clearly understand audio-visual coil motion of seeing, how the coil electric current direction changes, the student of being convenient for understands.

2. The utility model discloses compare in traditional generator model, through establishing the power supply in the flowing water lamp area on external power module gives the coil in addition, the simulation current direction, the power in flowing water lamp area is not influenced by the coil rotational speed, even the coil rotational speed is slow again, the change of simulation coil current direction that also can be clear.

3. The utility model discloses an interval arrangement has a plurality of to penetrate the lamp directly on N utmost point magnet model and/or S utmost point magnet model, with the magnetic line of force that penetrates lamp simulation magnetic field directly, produces smog with the smoke device to observe the light of penetrating the lamp directly better clearly, more clear audio-visual magnetic line of force in demonstration magnetic field promptly, and the cutting motion of coil in the magnetic line of force.

4. The box body is also provided with a magnetic line demonstration device which comprises an N-pole magnet, an S-pole magnet and a plurality of rows of small pointers, when in demonstration, the N-pole magnet and the S-pole magnet are taken away, and the small pointers are vertically directed due to gravity; and the N-pole magnet and the S-pole magnet are placed on two sides of the small pointer, and the small pointer is influenced by the magnetic lines of force of the N-pole magnet and the S-pole magnet and points horizontally, so that the dynamism of the magnetic lines of force can be demonstrated, and students can understand the concept of the magnetic lines of force more intuitively and sensitively.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged schematic view of a in fig. 1.

Fig. 3 is a schematic structural view of the magnetic line demonstrating device after the magnet is taken away.

Fig. 4 is a schematic structural view of the magnetic force line demonstration device with the magnet of the present invention.

The reference numerals are explained below: the device comprises a box body 1, a rotating device 2, a rotating shaft 3, a coil 4, a flowing water lamp strip 5, an insulating strip 6, a brush 7, a binding post 8, a power supply module 9, a magnetic field simulation device 10, an N-pole magnet model 101, an S-pole magnet model 102, a direct light 103, a smoke device 104, a magnetic line demonstration device 11, N-pole magnets 111, S-pole magnets 112 and a small pointer 113.

Detailed Description

In order to further understand the structure, characteristics and other objects of the present invention, the following description will be made with reference to the accompanying drawings, which are only used for explaining the technical solution of the present invention, but not for limiting the present invention.

Referring to fig. 1 and 2, a generator model with visualized magnetic lines of force and current directions comprises a closed transparent box 1, a rotating device 2 is arranged outside the box 1, and the rotating device 2 is a hand-operated rotating handle or a rotating motor, preferably a rotating motor in the embodiment. The rotary shaft 3 of the rotary device 2 extends into the case 1 and is connected to a coil 4, and the coil 4 is a flat frame. The magnetic field simulation device 10 is arranged on each of two sides of the coil 4, the flowing water lamp strip 5 for simulating and displaying current is arranged on each coil 4, the positive pole and the negative pole of the flowing water lamp strip 5 are connected to the left side and the right side of the rotating shaft 3 respectively, the rotating shaft 3 is a conductive body, strip-shaped insulating strips 6 are arranged on the upper side and the lower side of the rotating shaft 3 respectively, the rotating shaft 3 is divided into two poles through the insulating strips 6, the left side and the right side of the rotating shaft 3 are respectively connected with an electric brush 7 in an abutting mode, a binding post 8 is connected below the electric brush 7, the two binding posts 8 are respectively connected with the positive pole and the negative pole of a power module 9 and are respectively used for guiding the positive pole current and the negative pole current of the power module 9 to the left side and the right side of the.

Referring to fig. 1 and 2, in the simulation of the current direction of the coil 4, the rotating motor rotates forward or backward, and the driving coil 4 rotates forward or backward in the magnetic field simulation apparatus 10, thereby simulating the movement locus of the coil 4. Simultaneously, utilize flowing water lamp area 5 to simulate the current direction change on the coil 4, cut apart into two poles of the earth through insulating strip 6 with rotation axis 3 promptly, and lead the positive and negative electric current of power module 9 to rotation axis 3 through terminal 8 and brush 7 on, supply power for flowing water lamp area 5, rethread rotating shaft 3 corotation or reversal, thereby switch flowing water lamp area 5's positive and negative two poles of the earth power, and then control flowing water lamp area 5's light change, simulation coil 4 is at the rotation in-process, the change of the inside current direction of coil 4. In addition, the insulating strip 6 not only has and cuts apart the rotation axis 3 into two poles of earth, and at the rotatory in-process of rotation axis 3, when the platykurtic framework coil 4 is in the horizontal plane, insulating strip 6 is in both sides about the rotation axis 3, insulating strip 6 does not contradict with brush 7, and when platykurtic framework coil 4 is in the vertical plane, insulating strip 6 is in both sides about the rotation axis 3, insulating strip 6 just contradicts on brush 7, thereby isolated power module 9 supplies power for rotation axis 3, make flowing water lamp area 5 extinguish, no electric current phenomenon in the coil 4 when the better simulation coil 4 plane is perpendicular with the magnetic induction line. Therefore, the utility model discloses in the show process, when the student can clearly audio-visually see 4 movements of coil, 4 electric current directions of coil how change, the student of being convenient for learns to understand.

In addition, refer to fig. 1 and 2, the utility model discloses compare in traditional generator model, through establishing the power supply of flowing water lamp area 5 on the external power module 9 for coil 4 in addition, the simulation current direction, the power in flowing water lamp area 5 is not influenced by coil 4 rotational speed, even coil 4 rotational speed is slow again, the change of the 4 current direction of simulation coil that also can be clear.

Referring to fig. 1, the magnetic field simulation apparatus 10 includes an N-pole magnet model 101 and an S-pole magnet model 102, and a plurality of direct lamps 103 for simulating magnetic lines of force are arranged at intervals on the N-pole magnet model 101 and/or the S-pole magnet model 102. A smoke device 104 is further arranged in the box body 1, and the smoke device 104 is an electronic cigarette or a spray bottle and is used for generating smoke so as to clearly observe the light rays of the direct-emitting lamp 103.

Referring to fig. 1, 3 and 4, the box body 1 is further provided with a magnetic line of force demonstration device 11, the magnetic line of force demonstration device 11 includes an N-pole magnet 111, an S-pole magnet 112 and a plurality of rows of small pointers 113, the plurality of rows of small pointers 113 are arranged on a side plate of any one side of the box body 1 at intervals from top to bottom, and the N-pole magnet 111 and the S-pole magnet 112 are placed on two sides of the plurality of rows of small pointers 113. During demonstration, the N-pole magnet 111 and the S-pole magnet 112 are taken away, the small pointer 113 is vertically pointed due to gravity, as shown in fig. 3 (many small pointers in fig. 3 can present certain curve distribution under the action of magnetic field force, and the arranged track can visually display the distribution and the shape of the magnetic induction lines, so as to be beneficial to assisting students to further understand the magnetic induction lines); then, the N-pole magnet 111 and the S-pole magnet 112 are placed at both sides of the small pointer 113, and the small pointer 113 is influenced by the magnetic lines of force of the N-pole magnet 111 and the S-pole magnet 112 and points horizontally, as shown in fig. 4.

The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.

Claims

1. A generator model with magnetic lines and current directions visualized is characterized in that: the device comprises a box body (1), wherein a rotating device (2) is arranged outside one side surface of the box body (1), and a rotating shaft (3) of the rotating device (2) extends into the box body (1) and is connected with a coil (4) so as to drive the coil (4) to rotate forwards or backwards through the rotating device (2);

the coil (4) is provided with a flowing water lamp strip (5) for analog display of current, the positive and negative poles of the flowing water lamp strip (5) are respectively connected to the left side and the right side of the rotating shaft (3), the rotating shaft (3) is a conductor, strip-shaped insulating strips (6) are respectively arranged on the upper side and the lower side of the rotating shaft (3) so as to divide the rotating shaft (3) into two poles through the insulating strips (6), the left side and the right side of the rotating shaft (3) are respectively connected with an electric brush (7) in a butting mode, a binding post (8) is connected below the electric brush (7), and the two binding posts (8) are respectively connected with the positive pole and the negative pole of a power module (9) so as to provide power for the flowing water lamp strip (5) and switch the supply of the positive and negative pole power of;

coil (4) both sides are equipped with magnetic field analogue means (10) respectively, magnetic field analogue means (10) include N utmost point magnet model (101) and S utmost point magnet model (102), N utmost point magnet model (101) and/or S utmost point magnet model (102) interval arrangement have a plurality of to be used for simulating straight shot-light (103) of magnetic force line on the side of coil (4), be equipped with smoke device (104) in box (1) for produce smog and can clearly observe the light of straight shot-light (103).

2. The generator model of claim 1, wherein: the rotating device (2) is a hand-operated rotating handle or a rotating motor.

3. The generator model of claim 1, wherein: the smoke device (104) is an electronic cigarette or a spray bottle.

4. The generator model with visualized magnetic lines of force and current directions as claimed in claim 1, wherein: the magnetic force line demonstration device is characterized in that the box body (1) is further provided with a magnetic force line demonstration device (11), the magnetic force line demonstration device (11) comprises an N-pole magnet (111), an S-pole magnet (112) and a plurality of rows of small pointers (113), the small pointers (113) are arranged on a side plate on any side of the box body (1) from top to bottom at intervals, and the N-pole magnet (111) and the S-pole magnet (112) are placed on two sides of the small pointers (113).

5. The generator model with visualized magnetic lines of force and current directions as claimed in claim 1, wherein: the box body (1) is a closed transparent box body.