CN211827819U - Multifunctional electromagnetic display instrument - Google Patents

Abstract

The utility model relates to a multi-functional electromagnetism show appearance, including the base and set up the current output module on the base, current indication module, first coil, the second coil, universal meter and gauss meter, current output module includes the installing support and sets up the power on the installing support, switch and rheostat, power, rheostat and first coil form first circuit return circuit, current indication module includes the mounting panel, set up module and pilot lamp module are put to fortune on the mounting panel, the module is put to fortune, pilot lamp module and second coil form second circuit return circuit. The utility model discloses be provided with and form first circuit return circuit and put module, pilot lamp module and second coil formation second circuit return circuit by fortune by power, switch, rheostat and first coil, can show experiments such as ampere right-hand spiral rule, coil magnetic field intensity influence factor, lenz's law respectively through first circuit return circuit and second circuit return circuit, and the demonstration effect is abundant, improves the teaching effect.

Description

Multifunctional electromagnetic display instrument

Technical Field

The utility model relates to a technical field is made to the teaching aid, concretely relates to multi-functional electromagnetism show appearance.

Background

The existing teaching demonstration instrument uses a horseshoe magnet to generate a magnetic field, so that the track of the forced motion of an electrified conductor in the magnetic field is too short, easy to deform and unobvious; in addition, the change of the current direction can only be indicated by a teacher, and the teacher needs to change the current direction to connect the positive electrode and the negative electrode of the power supply. Therefore, the teaching is time-consuming and labor-consuming by means of the existing teaching demonstration instrument, the interest of students cannot be stimulated, and the teaching effect is poor.

Disclosure of Invention

In order to solve the technical problem that the above-mentioned teaching effect is poor, the utility model provides a design is simple, the simple operation, the abundant multi-functional electromagnetism show appearance of bandwagon effect.

The utility model discloses a multi-functional electromagnetism show appearance, including the base and set up the current output module on the base, current indication module, first coil, the second coil, universal meter and gauss meter, current output module includes the installing support and sets up the power on the installing support, switch and rheostat, power, rheostat and first coil form first circuit return circuit, current indication module includes the mounting panel, set up module and pilot lamp module are put to fortune on the mounting panel, the module is put to fortune, pilot lamp module and second coil form second circuit return circuit.

According to an embodiment of the present invention, the varistor is a ceramic varistor.

According to the utility model discloses an embodiment, the pilot lamp module is including the first pilot lamp and the second pilot lamp of instruction opposite direction, and the axial lead of second coil is perpendicular with first pilot lamp and/or second pilot lamp.

According to the utility model discloses an embodiment, current indication module still includes the current display, current display and second coil electric connection.

According to the utility model discloses an embodiment, multi-functional electromagnetism demonstrates appearance still includes the compass, and the compass sets up in one side of first coil.

According to the utility model discloses an embodiment, multi-functional electromagnetism demonstrates appearance still includes conducting rod and permanent magnet, sets up sliding bracket on the base, and the conducting rod slides and sets up on sliding bracket, and the permanent magnet sets up in sliding bracket and lies in the conducting rod below, and wherein power, rheostat and conducting rod form the third circuit return circuit.

According to the utility model discloses an embodiment, multi-functional electromagnetism show appearance still includes: pressure sensor and singlechip, pressure sensor set up on sliding support and with the conducting rod butt, singlechip and pressure sensor electric connection.

According to the utility model discloses an embodiment, multi-functional electromagnetism show appearance still includes: bluetooth module, bluetooth module and singlechip electric connection.

The utility model discloses a multi-functional electromagnetism demonstrates appearance is provided with by the power, the switch, rheostat and first coil form first circuit return circuit and put the module by fortune, pilot lamp module and second coil formation second circuit return circuit, wherein can show experiments such as ampere right-hand spiral rule, coil magnetic field intensity influence factor, leng's law respectively through first circuit return circuit and second circuit return circuit, and easy operation demonstrates the effect abundantly, effectively arouses student's study enthusiasm, improves the teaching effect.

Drawings

Fig. 1 is a schematic structural view of the multifunctional electromagnetic display instrument of the present invention.

Fig. 2 is a schematic structural diagram of a second circuit loop of the present invention.

Detailed Description

The multifunctional electromagnetic demonstration instrument of the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

Fig. 1 to 2 are schematic diagrams of a structure of a multifunctional electromagnetic demonstration apparatus and a structure of a second circuit according to the present invention.

The utility model provides a multi-functional electromagnetism demonstrates appearance, its mainly used demonstrates the law phenomenon in the aspect of the electromagnetism, it mainly includes base 1 and sets up current output module 2 on base 1, current indication module 3, first coil 4, second coil 5, universal meter 6 and gauss meter 7, wherein current output module 2 mainly used exports electricity to first coil 4, current indication module 3 mainly used instructs the current direction of second coil 5, universal meter 6 mainly used tests the electric current on the first coil 4, gauss meter 7 mainly used detects the magnetic field direction of first coil 4.

Specifically, the current output module 2 mainly includes a mounting bracket 201, and a power source 202 and a varistor 204 that are disposed on the mounting bracket 201, wherein in order to facilitate control of on/off of the power source 202, a switch 203 is further disposed on the current output module 2. The power source 202, the switch 203, the rheostat 204 and the first coil 4 form a first circuit loop, and an experiment can be performed on the influence factors of the ampere right-hand screw rule and the magnetic field intensity of the electrified coil through the first circuit loop. The current indicating module 3 includes a mounting board 301, an operational amplifier module 302 disposed on the mounting board 301, and an indicator light module 303. The operational amplifier module 302 is mainly used for amplifying the current input by the second coil 5 and outputting the current to the indicator light module 303, and the indicator light module 303 performs current direction indication according to the input current of the second coil 5. The operational amplifier module 302, the indicator light module 303 and the second coil 5 form a second circuit loop, and the lenz law can be demonstrated through the second circuit loop.

In an embodiment, the varistor 204 is a ceramic disc varistor, so that the resistance of the varistor 204 can be adjusted more intuitively and specifically, wherein the ceramic disc varistor is vertically arranged on the mounting bracket 201, which is convenient for students to adjust and observe the resistance of the varistor 204.

In an embodiment, the indicator light module 303 includes a first indicator light 3031 and a second indicator light 3032 that indicate opposite directions, for example, the first indicator light 3031 and the second indicator light 3032 are arrow-shaped or have other polygons, for example, the first indicator light 3031 and the second indicator light 3032 are formed by splicing a plurality of lamp beads, wherein an axial line of the second coil 5 is perpendicular to the first indicator light 3031 and/or the second indicator light 3032, so that the two indicator lights indicate a current direction of the second coil 5, and students can more intuitively know the current direction of the second coil 5.

In an embodiment, the current indicating module 3 further includes a current display 304, the current display 304 is electrically connected to the second coil 5, and the current display 304 displays the current generated on the second coil 5 in real time, so as to further improve the display effect.

In an embodiment, the multifunctional electromagnetic demonstration instrument further comprises a compass 8, wherein the compass 8 is arranged on one side of the first coil 4, and the compass 8 is used for indicating the magnetic field direction of the first coil 4, so that the experiment effect is more vivid.

In an embodiment, the multifunctional electromagnetic demonstration instrument further comprises a conductive rod 9 and a permanent magnet 10, a sliding support 101 is arranged on the base 1, wherein the sliding support 101 is in a shape like a Chinese character jing, so that the conductive rod 9 is slidably arranged on the sliding support 101, and the conductive rod 9 is made overhead, wherein the permanent magnet 10 is arranged in the sliding support 101 and located below the conductive rod 9, wherein the power supply 202, the switch 203, the rheostat 204 and the conductive rod 9 form a third circuit loop, and the third circuit loop is mainly used for performing a demonstration experiment on an ampere force.

In an embodiment, multi-functional electromagnetism demonstrates appearance still includes pressure sensor 11 and singlechip 12, and wherein pressure sensor sets up on sliding support 101, singlechip 12 and 11 electric connection of pressure sensor, when the conducting rod 9 receives ampere force in the magnetic field that the permanent magnet 10 formed after circular telegram, conducting rod 9 and 11 butt of pressure sensor, and pressure sensor 11 transmits the pressure value to singlechip 12, reads through the data to singlechip 12 and can obtain the size that receives ampere force to conducting rod 9. In another embodiment, the multifunctional electromagnetic display apparatus further includes a bluetooth module (not shown), the bluetooth module is electrically connected to the single chip 12, and the data of the ampere force acquired by the single chip 12 is transmitted to a display terminal (e.g., a mobile phone) by bluetooth through the bluetooth module, so as to further facilitate the operation of the experiment.

Adopt the utility model discloses a multi-functional electromagnetism demonstrates appearance can mainly carry out following experiment:

experiment one, verify ampere right-hand spiral rule, connect power 202, switch 203, rheostat 204, first coil 4 and universal meter 6 in proper order and constitute the return circuit to place gauss meter 7 probe at the right side of first coil 4 or left one end, know the magnetic field direction that first coil 4 produced after the circular telegram through observing the result of survey that gauss meter 7 surveyed, thereby demonstrate ampere right-hand spiral rule.

And in the second experiment, the variation of the magnetic field strength of the first coil 4 electrified under different current or voltage conditions is verified, and in the circuit structure in the first experiment, the variation of the magnetic field strength of the first coil 4 electrified under different conditions is verified by adjusting the resistance value of the rheostat 204 or adjusting the output voltage of the power supply 202, so that the current passing through the first coil 4 or the voltage of the first coil 4 is controlled, observing and recording the measurement result of the gaussmeter 7.

Experiment three, verify lenz's law, connect operational amplifier module 302, pilot lamp module 303 and second coil 5 in proper order and constitute the return circuit, through inserting or extracting second coil 5 with strip magnet, utilize first pilot lamp 3031 and second pilot lamp 3032 to instruct the direction of the induced current of second coil 5.

And fourthly, verifying the ampere force phenomenon, sequentially connecting the power supply 202, the switch 203, the rheostat 204 and the conductive rod 9 to form a loop, controlling the on-off of the conductive rod 9 through the switch 203, and verifying that the electrified conductive rod 9 generates the ampere force in the magnetic field formed by the permanent magnet 10 and moves along the corresponding direction.

And a fifth experiment is carried out, the magnitude of the ampere force is verified, the pressure sensor 11 is connected with the single chip microcomputer 12 under the circuit structure of the fourth experiment, the sensing end of the pressure sensor 11 is placed on the moving path of the conductive rod 9, when the conductive rod 9 moves under the action of the ampere force, the conductive rod collides with the pressure sensor 11, the pressure sensor 11 records the magnitude of the acting force, and the magnitude of the acting force of the ampere force is obtained by reading data on the single chip microcomputer 12.

To sum up, the utility model discloses a multi-functional electromagnetism demonstrates appearance experiment easy operation is provided with and is put the module by fortune by power, switch, rheostat and first circuit formation first circuit return circuit and by fortune, pilot lamp module and second coil formation second circuit return circuit, wherein can show ampere right hand spiral rule respectively through first circuit return circuit and second circuit return circuit, coil magnetic field intensity influence factor, experiments such as lenz law, through power, the switch, rheostat and conducting rod form third circuit return circuit, mainly used demonstrates to ampere's power, the demonstration effect is abundant, effectively arouse student's study enthusiasm, improve teaching effect.

In the description of the present invention, it is to be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims (8)

1. A multifunctional electromagnetic display instrument is characterized by comprising: the base and set up in current output module, current indication module, first coil, second coil, universal meter and gauss meter on the base, current output module include the installing support and set up in power and rheostat on the installing support, power, switch, rheostat and first coil form first circuit return circuit, current indication module include the mounting panel, set up in module and pilot lamp module are put to fortune on the mounting panel, module, pilot lamp module and second coil form the second circuit return circuit is put to fortune.

2. The multifunctional electromagnetic display instrument of claim 1, wherein the varistor is a porcelain varistor.

3. The multi-functional electromagnetic display apparatus of claim 1, wherein the indicator light module comprises: the axis of the second coil is perpendicular to the first indicator light and/or the second indicator light.

4. The multi-functional electromagnetic display according to claim 1, wherein said current indicating module further comprises: and the current display is electrically connected with the second coil.

5. The multifunctional electromagnetic display apparatus of claim 1, further comprising: and the compass is arranged on one side of the first coil.

6. The multifunctional electromagnetic display instrument according to any one of claims 1 to 5, characterized in that it further comprises: the base is provided with a sliding support, the conductive rod is arranged on the sliding support in a sliding mode, the permanent magnet is arranged in the sliding support and located below the conductive rod, and the power supply, the rheostat and the conductive rod form a third circuit loop.

7. The multi-functional electromagnetic display apparatus of claim 6, further comprising: the pressure sensor is arranged on the sliding support and is abutted to the conductive rod, and the single chip microcomputer is electrically connected with the pressure sensor.

8. The multi-functional electromagnetic display apparatus of claim 7, further comprising: the Bluetooth module is electrically connected with the single chip microcomputer.

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