CN214428194U

CN214428194U - Combined demonstrator for energy conversion and electromagnetic induction phenomena

Info

Publication number: CN214428194U
Application number: CN202120237907.5U
Authority: CN
Inventors: 马彦兵; 董昌文; 曲晓英; 潘贵英; 张文勇; 罗仕应
Original assignee: Guizhou Minzu University
Current assignee: Guizhou Minzu University
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-10-19
Anticipated expiration: 2031-01-28

Abstract

The utility model relates to an energy conversion and electromagnetic induction phenomenon combination demonstration ware belongs to teaching aid technical field. This energy conversion and electromagnetic induction phenomenon combination demonstration ware, the power distribution box comprises a box body, the fixed support column that is equipped with the type of falling U on the box, the vertical fixedly connected with elastic component's in middle part one end of support column, the other end fixedly connected with magnet piece of elastic component, the top of box is equipped with the resettlement groove, the resettlement groove is located the vertical below of magnet piece, the resettlement inslot is equipped with the solenoid, the fixed galvanometer and the fluorescent tube that are equipped with in top of box, the solenoid the galvanometer with the fluorescent tube is established ties in proper order. Has the advantages that: the energy conversion and electromagnetic induction phenomena can be observed visually, vividly, conveniently and interestingly, the experimental efficiency is high, and the observation effect is good; low cost, small volume and simple structure.

Description

Combined demonstrator for energy conversion and electromagnetic induction phenomena

Technical Field

The utility model belongs to the technical field of teaching aid, concretely relates to energy conversion and electromagnetic induction phenomenon combination demonstration ware.

Background

Energy is the power of an object to do work, is a general measure of the motion of a substance, corresponds to the motion in different forms, and is divided into mechanical energy, molecular internal energy, electric energy, chemical energy, atomic energy and the like. Energy can be transferred between substances, the energy can not disappear or be generated, but various energies can be mutually converted, and the law of energy conservation is formed. Mechanical energy is a measure of the mechanical movement of a substance. Including kinetic energy, gravitational potential energy, and elastic potential energy. When the magnetic flux changes through the area enclosed by a closed loop, there will be a current flow in the loop, a phenomenon known as electromagnetic induction. The current generated in the loop is called the induced current. The electromotive force in the circuit due to the change in the magnetic flux is called induced electromotive force.

Most of the existing electromagnetic induction phenomenon demonstration instruments cause instantaneous deflection of a galvanometer or instantaneous illumination of an LED lamp when a magnet block is freely dropped or manually inserted (pulled out) to pass through a coil, and often give an observer feeling of inexhaustibility; also some demonstration appearance are installed the spring below the coil, when the magnet piece drops on the spring, receive the ascending power of spring can be bounced, thereby arouse galvanometer deflection or LED lamp luminous, but when the magnet piece drops on the spring, its kinetic energy is the elastic potential energy who converts the spring in the twinkling of an eye, later when the magnet piece leaves the spring, elastic potential energy also very fast converts kinetic energy and the gravitational potential energy of magnet piece upward movement into, because energy conversion is fast, energy loss is also great, and magnet piece motion orbit randomness is also big, sometimes still can collide coil inner wall etc. lead to magnet piece bounce number of times less, thereby arouse galvanometer deflection or LED lamp luminous number of times also less.

Therefore, a combined demonstrator of energy conversion and electromagnetic induction phenomena is provided to solve the defects in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a combined demonstrator of energy conversion and electromagnetic induction for solving the technical problems, which can observe the energy conversion and electromagnetic induction directly, visually, vividly, conveniently and interestingly, and has the advantages of high experimental efficiency and good observation effect; low cost, small volume and simple structure.

The utility model provides an above-mentioned technical problem's technical scheme as follows: this energy conversion and electromagnetic induction phenomenon combination demonstration ware includes the box, the fixed support column that is equipped with the type of falling U on the box, the vertical fixedly connected with elastic component's in middle part one end of support column, the other end fixedly connected with magnet piece of elastic component, the top of box is equipped with the resettlement groove, the resettlement groove is located the vertical below of magnet piece, the resettlement inslot is equipped with the solenoid, the fixed galvanometer and the fluorescent tube that are equipped with in top of box, the solenoid the galvanometer with the fluorescent tube is established ties in proper order.

Has the advantages that: the energy conversion and electromagnetic induction phenomena can be observed visually, vividly, conveniently and interestingly, the experimental efficiency is high, and the observation effect is good; low cost, small volume and simple structure.

Further, the lamp tube is an LED lamp.

The beneficial effect of adopting the further scheme is that: no delay in lighting, faster response time, low power consumption and long service life.

Further, the elastic member is a spring.

The beneficial effect of adopting the further scheme is that: and the continuous demonstration of the electromagnetic induction is completed by utilizing the resilience of the spring.

Further, the spring is on the same vertical line as the center line of the solenoid.

The beneficial effect of adopting the further scheme is that: the electromagnetic induction phenomenon can be ensured to be smoothly carried out, and the display effect is good.

Furthermore, the box body is made of plastic.

The beneficial effect of adopting the further scheme is that: light weight, convenient taking and placing and low cost.

Further, the support column is fixed on the box body through a screw.

The beneficial effect of adopting the further scheme is that: the fixing effect is good, and the assembly and the disassembly are convenient.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a box body; 2. a support pillar; 3. a solenoid; 4. a magnet block; 5. a spring; 6. an LED lamp; 7. and (4) an ammeter.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1, the present embodiment provides a combined demonstrator for energy conversion and electromagnetic induction phenomena, comprising: the box 1, the fixed support column 2 that is equipped with the type of falling U on the box 1, the vertical fixedly connected with elastic component's in middle part one end of support column 2, the other end fixedly connected with magnet piece 4 of elastic component, elastic component are spring 5, the top of box 1 is equipped with the resettlement groove, the resettlement groove is located the vertical below of magnet piece 4, the resettlement inslot is equipped with solenoid 3, the fixed galvanometer 7 and the fluorescent tube that is equipped with in top of box 1, the fluorescent tube is LED lamp 6, solenoid 3 the galvanometer 7 with the fluorescent tube is established ties in proper order.

The magnet block 4 is connected with the spring 5, when the magnet block 4 falls under the action of gravity, the spring 5 is stretched, the gravitational potential energy of the magnet block 4 is converted into the kinetic energy of the magnet block 4 and the elastic potential energy of the spring 5, then the elastic potential energy is converted into the kinetic energy and the gravitational potential energy of an object when the spring 5 contracts, so that the magnet block 4 can reciprocate for multiple times up and down in the solenoid 3, when the magnet block 4 reciprocates up and down in the solenoid 3, the magnetic flux of the area surrounded by a loop formed by the solenoid 3, the galvanometer 7 and the LED lamp 6 is changed alternately, and the alternating current is generated in the loop, so that the back-and-forth deflection of the pointer of the galvanometer 7 and the LED lamp 6 twinkle and light are caused, and the phenomenon is visual, vivid and interesting when being observed, and the mutual conversion between mechanical energy can be repeatedly observed.

Example 2

As shown in fig. 1, the present embodiment provides a combined demonstrator for energy conversion and electromagnetic induction phenomena, comprising: the box 1 of plastics material, be equipped with the support column 2 of the type of falling U through the fix with screw on the box 1, the vertical fixedly connected with elastic component's in middle part one end of support column 2, the other end fixedly connected with magnet piece 4 of elastic component, elastic component are spring 5, the top of box 1 is equipped with the resettlement groove, the resettlement groove is located the vertical below of magnet piece 4, the resettlement inslot is equipped with solenoid 3, the fixed galvanometer 7 and the fluorescent tube that is equipped with in top of box 1, the fluorescent tube is LED lamp 6, solenoid 3 the galvanometer 7 with the fluorescent tube is established ties in proper order.

Preferably, in this embodiment, the center lines of the spring 5 and the solenoid 3 are on the same vertical line, so as to ensure smooth performance of the electromagnetic induction phenomenon and provide a good display effect.

The operation mode is as follows:

firstly, the magnet block 4 is supported by hands to enable the spring 5 to be in an unstretched state, and the magnet block 4 can be ensured to freely move up and down in the solenoid 3 when falling, at the moment, the hands are released, the gravitational potential energy of the magnet block 4 is converted into the kinetic energy of the magnet block 4 and the elastic potential energy of the spring when falling under the action of gravity, then the elastic potential energy is converted into the kinetic energy and the gravitational potential energy of an object when the spring 5 contracts, so that the magnet block 4 can reciprocate up and down in the solenoid 3, when the magnet block 4 reciprocates up and down in the solenoid 3, the magnetic flux of the area surrounded by a loop formed by the solenoid 3, the galvanometer 7 and the LED lamp 6 is alternately changed, alternating current is generated in the loop, so that the back-and-forth deflection of the pointer of the galvanometer and the LED lamp 6 are alternately emitted, the magnet block 4 can reciprocate up and down for about 100 times, so that an observer can observe the left-right deflection of the pointer of the galvanometer 7 and flicker emission of the LED lamp 6 for a long time, meanwhile, the mutual conversion between the discussion energies can be observed, analyzed and discussed, and the method has the advantages of convenient operation and visual, vivid and interesting observation.

In the second mode, when the spring connected to the magnet block 4 is released after being stretched to the maximum within the elastic limit of the spring 5, the magnet block 4 reciprocates up and down by about 7 times as many times as the first mode.

In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the system or element being 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.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A combined demonstrator for energy conversion and electromagnetic induction phenomena is characterized by comprising:

the box (1), fixed support column (2) that are equipped with the type of falling U on box (1), the vertical fixedly connected with elastic component's in middle part one end of support column (2), the other end fixedly connected with magnet piece (4) of elastic component, the top of box (1) is equipped with the resettlement groove, the resettlement groove is located the vertical below of magnet piece (4), the resettlement inslot is equipped with solenoid (3), the fixed galvanometer (7) and the fluorescent tube that are equipped with in top of box (1), solenoid (3) galvanometer (7) with the fluorescent tube is established ties in proper order.

2. The combined demonstrator of energy conversion and electromagnetic induction phenomena according to claim 1, wherein said light tube is an LED lamp (6).

3. The combined demonstration device of energy conversion and electromagnetic induction phenomena according to claim 1 characterized in that said elastic means is a spring (5).

4. The combined demonstration device of energy conversion and electromagnetic induction phenomena according to claim 3, characterised in that said spring (5) is on the same vertical line as the centre line of said solenoid (3).

5. The combined demonstrator of energy conversion and electromagnetic induction according to any one of claims 1-4, wherein said case (1) is made of plastic.

6. The combined demonstrator of energy conversion and electromagnetic induction phenomena according to any one of claims 1 to 4, wherein said support column (2) is fixed to said case (1) by means of screws.