CN212302853U

CN212302853U - Teaching demonstration device for linear generator set

Info

Publication number: CN212302853U
Application number: CN202021313158.1U
Authority: CN
Inventors: 王法宁; 刘江; 刘海娟; 左承基
Original assignee: ANHUI WONDER UNIVERSITY OF INFORMATION ENGINEERING
Current assignee: ANHUI WONDER UNIVERSITY OF INFORMATION ENGINEERING
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-01-05
Anticipated expiration: 2030-07-07

Abstract

The utility model provides a teaching demonstration device for a linear generator set, which comprises a demonstration platform, sliding plates, stator coils, a permanent magnet aluminum plate, a first wiring end, an AC-DC converter, a second wiring end, sliding rails, a DC small bulb, an oscilloscope and a display screen, wherein two groups of sliding rails are symmetrically arranged on the two sides of the upper end surface of the demonstration platform, two groups of sliding plates are slidably arranged on the upper side of the sliding rails, the permanent magnet aluminum plate is arranged between the two groups of sliding plates, the stator coils are arranged on the upper end of the demonstration platform and are positioned below the permanent magnet aluminum plate, the AC-DC converter is arranged on one side of the stator coils and positioned on the upper end surface of the demonstration platform, the first wiring end is arranged on one end of the AC-DC converter, the second wiring end is arranged on the other end of the AC-DC converter, the teaching demonstration of the linear generator is facilitated, and the knowledge of the linear generator is convenient to learn and popularize.

Description

Teaching demonstration device for linear generator set

Technical Field

The utility model belongs to the technical field of linear generator uses, relate to the teaching presentation device, specifically be linear generator set teaching presentation device.

Background

The generator is mechanical equipment which converts other forms of energy into electric energy, is driven by a water turbine, a steam turbine, a diesel engine or other power machines, converts energy generated by water flow, air flow, fuel combustion or nuclear fission into mechanical energy and transmits the mechanical energy to the generator, and then the generator converts the mechanical energy into electric energy. The generator has wide application in industrial and agricultural production, national defense, science and technology and daily life. The generator has many forms, but the working principle is based on the law of electromagnetic induction and the law of electromagnetic force. The general principle of its construction is therefore: appropriate magnetic conductive and electric conductive materials are used to form a magnetic circuit and a circuit which mutually perform electromagnetic induction so as to generate electromagnetic power and achieve the purpose of energy conversion. Since the generation of electric power has been developed to present day since the birth of electric power generators, the generation of electric power by using rotary electric power generators has become a main source of electric power, and although the problem of linear electric power generators has been proposed, the conventional rotary electric power generators basically satisfy the requirements, which makes the research of linear electric power generators at home and abroad still in the initial stage.

With the energy shortage, more and more people begin to explore new energy and energy saving methods, in recent years, linear generators are put into practice from theory, traditional rotary generators need external power to rotate a rotor to cut a magnetic field to generate electricity, but the power needs to be converted into rotating force through a device, and in the process, a part of mechanical energy is lost due to mechanical friction, transmission efficiency and the like, so that energy is wasted. The linear generator can generate electricity only through reciprocating linear motion, an intermediate mechanical conversion mechanism is omitted, mechanical energy loss is reduced, energy conversion efficiency of the whole generator set is improved, however, application of linear generation in the traditional power generation field is very few, and the technology of the linear generator set is not mature in relative rotation power generation, and therefore the linear generator set teaching demonstration device is provided.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing linear generator set teaching presentation device to solve the problem that proposes in the above-mentioned background art, the utility model discloses rational in infrastructure, make things convenient for linear generator's teaching demonstration, be convenient for learn to popularize linear generator knowledge.

The purpose of the utility model can be realized by the following technical scheme: linear generator group teaching presentation device, including demonstration platform, slide, stator coil, permanent magnet aluminum plate, first wiring end, AC DC converter, second wiring end, slide rail, direct current little bulb, oscilloscope, display screen and spliced eye, two sets of slide rails are installed to demonstration platform up end bilateral symmetry, slide rail upside slidable mounting has two sets of slide, installs permanent magnet aluminum plate between two sets of slide, the demonstration platform upper end is installed stator coil, stator coil is in the permanent magnet aluminum plate below, stator coil one side just is located demonstration platform up end and is equipped with AC DC converter, AC DC converter one end is installed first wiring end, AC DC converter other end is installed the second wiring end, AC DC converter electricity is connected with the direct current little bulb, second wiring end is connected with oscilloscope, the oscilloscope is provided with a display screen, and three plug holes are formed in one side, located on the display screen, of the oscilloscope.

Further, the stator coil is an E-shaped iron core coil.

Further, the slider is installed to the slide downside, and in the slider embedding to the slide rail, the slide passes through slider and slide rail sliding connection.

Furthermore, a high-definition toughened film is pasted on the outer surface of the display screen.

Furthermore, the spliced eye is equipped with threely, and three spliced eye specification is the same, and is three spliced eye inside all fills installs the dust plug.

Furthermore, four thyristors are installed on a circuit of the alternating current-direct current converter.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model provides a linear generator set teaching demonstration device, the demonstration device mainly comprises permanent magnet aluminum plate, a slide rail, stator coil, AC DC converter, DC small bulb and oscilloscope, the teaching demonstration is carried out on the basis of the linear generator, students themselves utilize the permanent magnet aluminum plate self magnetic field on the slide plate to pass the stator coil below the slide rail by applying reciprocating force, along with the back and forth sliding of the permanent magnet aluminum plate on the slide rail, the magnetic flux in the stator coil is caused to change, thereby generating current in the stator coil, the generated AC is converted into DC through the AC DC converter, the DC small bulb is made to emit light, and AC and DC are detected through the oscilloscope, the display screen displays the voltage waveform diagram in real time, thereby reading frequency and amplitude, the structural composition and the running state of the linear generator can be intuitively known through the device, the principle and the structure of the linear generator are applied to practice teaching, and the blank of domestic practice demonstration teaching of the linear generator is filled;

2. the working mechanism of the linear generator is designed and used as a teaching demonstration device for the principle and the structure of the linear generator, so that students can conveniently know the working principle, the structural composition and the performance characteristics of the linear generator, and the working mechanism has obvious effects on learning and popularizing the knowledge of the linear generator;

3. the vertical spacing between the stator coil and the permanent magnet aluminum plate is designed to be 3mm, so that a larger magnetic field force is ensured, the permanent magnet aluminum plate can slide back and forth under the support of the slide rail, a larger magnetic flux variation can be generated in the stator coil, the device is reasonable in arrangement and stable in operation, and meanwhile, the guide rail is made of high-wear-resistance alloy steel to ensure a longer service life;

to sum up, the utility model discloses rational in infrastructure, make things convenient for linear generator's teaching demonstration, the learning of being convenient for popularizes linear generator knowledge.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the whole structure of the teaching demonstration device for a linear generator set of the present invention;

fig. 2 is a schematic structural diagram of a stator coil in the teaching demonstration device for a linear generator set of the present invention;

FIG. 3 is a circuit diagram of an AC/DC converter in the teaching demonstration device of the linear generator set of the present invention;

FIG. 4 is a schematic structural diagram of an AC/DC converter in the teaching demonstration device for a linear generator set of the present invention;

FIG. 5 is a side view of a demonstration table in the teaching demonstration device for a linear generator set of the present invention;

in the figure: 1. a demonstration table; 2. a slide plate; 3. a stator coil; 4. a permanent magnet aluminum plate; 5. a first terminal; 6. an AC-DC converter; 7. a second terminal; 8. a slide rail; 9. a DC small bulb; 10. an oscilloscope; 11. a display screen; 12. inserting holes; 13. a slide block.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-5, the teaching demonstration device for the linear generator set comprises a demonstration table 1, sliding plates 2, stator coils 3, permanent magnet aluminum plates 4, a first terminal 5, an ac-dc converter 6, a second terminal 7, sliding rails 8, small dc bulbs 9, an oscilloscope 10, a display screen 11 and a plug hole 12, wherein two groups of sliding rails 8 are symmetrically installed on two sides of the upper end surface of the demonstration table 1, two groups of sliding plates 2 are slidably installed on the upper sides of the sliding rails 8, the permanent magnet aluminum plates 4 are installed between the two groups of sliding plates 2, the stator coils 3 are installed on the upper end of the demonstration table 1, the stator coils 3 are located below the permanent magnet aluminum plates 4, the ac-dc converter 6 is installed on one side of the stator coils 3 and located on the upper end surface of the demonstration table 1, the first terminal 5 is installed on one end of the ac-dc converter 6, the second terminal 7 is, the second terminal 7 is connected with an oscilloscope 10, a display screen 11 is installed on the oscilloscope 10, and three plug holes 12 are arranged on the oscilloscope 10 and located on one side of the display screen 11.

Stator coil 3 is the iron core coil of E shape structure, it has great magnetic field force to guarantee stator coil 3, slider 13 is installed to 2 downside of slide, and slider 13 embedding to slide rail 8 in, slide 2 is through

slider

13 and 8 sliding connection of slide rail, make things convenient for permanent magnet aluminum plate 4 along 8 reciprocating motion of slide rail, 11 outer surface paste of display screen has high definition tempering membrane, increase display screen 11's life, spliced eye 12 is equipped with threely, and 12 specifications of three spliced eye are the same, 12 inside all fillings in three spliced eye are installed and are prevented dust stopper, avoid the dust to get into inside spliced eye 12, install four silicon controlled rectifiers on AC DC converter 6's the circuit, whether closed and short circuit of circuit is conveniently known to the circuit.

The utility model discloses when specifically implementing: the demonstration device mainly comprises a permanent magnet aluminum plate 4, a slide rail 8, a stator coil 3, an alternating current-direct current converter 6, a direct current small bulb 9 and an oscilloscope 10, teaching demonstration is carried out on the basis of the linear generator, students apply reciprocating force by themselves, utilize the magnetic field of the permanent magnet aluminum plate 4 on the slide plate 2 to penetrate through the stator coil 3 below the slide rail 8, along with the back-and-forth sliding of the permanent magnet aluminum plate 4 on the slide rail 8, the magnetic flux in the stator coil 3 is caused to change, so that current is generated in the stator coil 3, the generated alternating current is converted into direct current through the alternating current-direct current converter 6, the direct current small bulb 9 emits light, the alternating current and the direct current are detected through the oscilloscope 10, a voltage waveform diagram is displayed in real time by a display screen 11, so that the frequency and the amplitude are read, the principle and the structure of the linear generator are applied to practice teaching, the blank of domestic practice demonstration teaching of the linear generator is filled, and the teaching demonstration device is used as a teaching demonstration device of the principle and the structure of the linear generator, is convenient for students to know the working principle, the structural composition and the performance characteristics of the linear generator, and has remarkable effects on learning and popularizing knowledge of the linear generator;

simultaneously, be 3mm with stator coil 3 and permanent magnet aluminum plate 4 interval design from top to bottom, make it guarantee to have great magnetic field force, support under slide rail 8, permanent magnet aluminum plate 4 can be through reciprocating sliding, can produce great magnetic flux variation in stator coil 3, and the device arranges rationally, work is steady, and the guide rail adopts the alloy steel that the wearability is high simultaneously to guarantee longer working life.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The teaching demonstration device for the linear generator set is characterized by comprising a demonstration table (1), sliding plates (2), stator coils (3), permanent magnet aluminum plates (4), a first wiring end (5), an alternating current-direct current converter (6), a second wiring end (7), sliding rails (8), small direct current bulbs (9), an oscilloscope (10), a display screen (11) and inserting holes (12), wherein two groups of sliding rails (8) are symmetrically arranged on two sides of the upper end face of the demonstration table (1), two groups of sliding plates (2) are slidably arranged on the upper sides of the sliding rails (8), the permanent magnet aluminum plates (4) are arranged between the two groups of sliding plates (2), the stator coils (3) are arranged on the upper end of the demonstration table (1), the stator coils (3) are located below the permanent magnet aluminum plates (4), the alternating current-direct current converter (6) is arranged on one side of the stator coils (3) and located, first wiring end (5) is installed to alternating current direct current converter (6) one end, second wiring end (7) is installed to alternating current direct current converter (6) other end, alternating current direct current converter (6) electricity is connected with direct current small bulb (9), second wiring end (7) are connected with oscilloscope (10), install display screen (11) on oscilloscope (10), oscilloscope (10) are gone up and are located display screen (11) one side and be provided with three spliced eye (12).

2. The linear generator set teaching demonstration device according to claim 1 characterized in that said stator coil (3) is an E-shaped configuration of iron core coil.

3. The linear generator set teaching demonstration device according to claim 1, characterized in that a sliding block (13) is installed on the lower side of the sliding plate (2), the sliding block (13) is embedded into the sliding rail (8), and the sliding plate (2) is connected with the sliding rail (8) in a sliding mode through the sliding block (13).

4. The linear generator set teaching demonstration device according to claim 1, characterized in that a high-definition toughened film is pasted on the outer surface of the display screen (11).

5. The linear generator set teaching demonstration device according to claim 1, wherein the number of the insertion holes (12) is three, the three insertion holes (12) are the same in specification, and the three insertion holes (12) are filled with dust plugs.

6. The linear generator set teaching demonstration device according to claim 1, characterized in that four thyristors are installed on the circuit of the ac-dc converter (6).