CN211149871U

CN211149871U - Electromagnetic induction experimental instrument

Info

Publication number: CN211149871U
Application number: CN201920181159.6U
Authority: CN
Inventors: 张建强; 路飞平; 赵小龙; 何林芳
Original assignee: Tianshui Normal University
Current assignee: Tianshui Normal University
Priority date: 2019-01-29
Filing date: 2019-01-29
Publication date: 2020-07-31
Anticipated expiration: 2029-01-29

Abstract

The utility model belongs to the technical field of electromagnetic induction, in particular to an electromagnetic induction experimental instrument, which comprises an outer shell and a voltmeter fixed on the front surface of the outer shell in a clamping way, wherein a magnetic block is placed on one side of the upper surface of the outer shell, fixed blocks are arranged on the front and the back sides of the magnetic block, during the use process of the electromagnetic induction experimental instrument, the magnetic block is fixed above the outer shell in a clamping way, the electromagnetic experiment for normally cutting a magnetic induction line can be carried out through a cutting rod connected with one end of a stay cord, an iron block and a battery are arranged above the magnetic sheet, a rotating wire is changed into different shapes, only the two ends of the rotating wire are respectively contacted with the upper surfaces of the iron block and the battery, the rotating wire can freely rotate, the interest of the electromagnetic experiment is increased, components such as the rotating wire and the battery are moved to one side, a certain electromagnetic experiment can be carried out through the rotating wire, thereby solving the problem that the original students can carry out, there is no more interesting problem.

Description

Electromagnetic induction experimental instrument

Technical Field

The utility model belongs to the technical field of electromagnetic induction, concretely relates to electromagnetic induction experiment appearance.

Background

Electromagnetic induction, which refers to a conductor placed in a changing magnetic flux and generates an electromotive force, faraday finds that the electromotive force (EMF) generated on a closed loop is proportional to the rate of change of the magnetic flux on a curved surface enclosed by any path, which means that a current flows in any closed conductor when the magnetic flux on the curved surface enclosed by the conductor changes, and this is suitable for the operation of a generator, an induction motor, a transformer and most other electric equipment when a field itself changes or the conductor moves in the field, and an electromagnetic induction experimental instrument is often used in teaching to teach students.

In schools, most students can feel boring and do not want to see and understand physics, particularly electricity, in the process of electromagnetic induction experiments, the process of learning and recording is boring, the existing electromagnetic induction experiment instrument cannot arouse the interest of the students, the students cannot know the physics too much, and the existing electromagnetic induction experiment instrument has certain limitation in the process of teaching.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an electromagnetic induction experiment appearance has and makes the electromagnetic induction experiment have more interesting characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electromagnetic induction experiment appearance, includes that shell body and shell body front surface go up the block and is fixed with the voltmeter, the magnetic path has been placed to one side of shell body upper surface, and both sides are provided with the fixed block around the magnetic path, the fixed block weld in the shell body on the surface, the fixed block with be provided with the spring between the magnetic path, the one end of spring is inlayed the inside of fixed block, the other end with the surface of magnetic path contacts each other, the shell body upper surface is different in one side block of magnetic path is connected with the fixture block, and there is the magnetic sheet top of fixture block through the glue bonding, the iron plate has been placed to the top of magnetic sheet, the upper surface magnetism of iron plate is connected with the battery, the outside of battery is provided with changes the silk, change the one end registrate of silk in on the.

Preferably, the clamping of the middle position of the upper surface of the outer shell is fixed with a connecting rod, one side of the connecting rod is provided with a cutting rod, a pull rope is arranged between the cutting rod and the connecting rod, the cutting rod is fixedly connected with the connecting rod through the pull rope, the two ends of the cutting rod are all connected with a wire in a penetrating manner, and the upper surface of the outer shell is close to the front side of the connecting rod and is fixedly connected with a switch valve through a screw.

Preferably, the position of one side of shell body upper surface near the fixture block is located through bolt fixedly connected with air pump, and the output of air pump rotates and is connected with the telescopic link, and the telescopic link is different from the one end integrated into one piece of air pump and has the clamp splice.

Preferably, the inside of the shell body is provided with a groove, the front surface of the shell body is hinged with a sliding door through a hinge at a position corresponding to the groove, and a temperature controller is placed on the bottom surface inside the groove.

Preferably, a plurality of holes are equidistantly distributed on the upper surface of the outer shell at positions corresponding to the magnetic blocks.

Preferably, the width within the block is equal to the cross-sectional width of the cutting bar.

Preferably, the four corners of the lower surface of the outer shell are welded with bases, and anti-skid sleeves are sleeved outside the bases.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses in the in-process that uses, the top centre gripping of shell body is fixed with the magnetic path, the cutting pole that accessible stay cord one end is connected carries out the electromagnetism experiment of normal cutting magnetic induction line, top at the magnetic sheet is provided with iron plate and battery, will change the silk into different shapes, only need to change the both ends of silk and contact with the upper surface of iron plate and battery respectively, will make the rotation of changeing the silk freedom, the interest of electromagnetism experiment has been increased, and will change components such as silk and battery and move to one side of magnetic path, through rotatory silk that changes can carry out certain electromagnetism experiment equally, thereby solved original student when using electromagnetic induction experiment appearance, do not have more interesting problem, improved student and tested the interest as to physics to the electromagnetic induction, student's learning has been strengthened to a certain extent.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of the structure of the middle hole of the present invention;

FIG. 4 is a schematic structural view of the middle temperature controller of the present invention;

fig. 5 is a schematic structural view of the middle clamping block of the present invention.

In the figure: 1. an outer housing; 2. a connecting rod; 3. pulling a rope; 4. cutting the rod; 5. a wire; 6. an air pump; 7. an iron block; 8. a magnetic sheet; 9. a clamping block; 10. a battery; 11. spinning; 12. a magnetic block; 13. a fixed block; 14. a groove; 15. a telescopic rod; 16. a clamping block; 17. an on-off valve; 18. a spring; 19. a hole; 20. and a temperature controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-5, the present invention provides an electromagnetic induction experimental apparatus, including an outer casing 1 and a voltmeter fixed to the front surface of the outer casing 1 in a snap-fit manner, in this embodiment, the model of the voltmeter is UT890D, a magnetic block 12 is placed on one side of the upper surface of the outer casing 1, fixing blocks 13 are disposed on the front and rear sides of the magnetic block 12, the fixing blocks 13 are welded to the surface of the outer casing 1, a spring 18 is disposed between the fixing block 13 and the magnetic block 12, one end of the spring 18 is embedded inside the fixing block 13, the other end of the spring is in contact with the surface of the magnetic block 12, a side of the upper surface of the outer casing 1, which is different from the magnetic block 12, is in a snap-fit manner and connected with a clamping block 9, a magnetic sheet 8 is adhered to the upper side of the clamping block 9 through glue, an iron block 7 is placed above the magnetic sheet 8, the upper surface of the iron block 7 is magnetically connected with a battery 10, in this embodiment, the model of the battery 10 is L R6-24B, a rotating wire 11 is disposed outside the battery 10, one end of the rotating wire 11 is fitted over the iron block 7, the iron block, the other end of the rotating wire 11 is in contact with the upper surface of the battery, the rotating experimental apparatus, the electromagnetic induction experimental apparatus increases the experimental apparatus, and increases the experimental apparatus.

Specifically, intermediate position department block of shell body 1 upper surface is fixed with linking pole 2, one side of linking pole 2 is provided with cutting rod 4, be provided with stay cord 3 between cutting rod 4 and the linking pole 2, cutting rod 4 passes through stay cord 3 and links pole 2 fixed connection, the equal cross-under in both ends of cutting rod 4 has wire 5, screw fixedly connected with ooff valve 17 is passed through to the front side that shell body 1 upper surface is close to linking pole 2, move in magnetic path 12 with the hand pulling cutting rod 4, it is closed with ooff valve 17 simultaneously, wire 5 at cutting rod 4 both ends can carry out data recording on the voltmeter with data transfer, in order to guarantee the research to normal electromagnetism experiment.

Specifically, one side position department that the upper surface of shell body 1 is close to fixture block 9 is connected with air pump 6 through bolt fixedly, and the output of air pump 6 rotates and is connected with telescopic link 15, and telescopic link 15 is different in the one end integrated into one piece of air pump 6 has clamp splice 16, utilizes clamp splice 16 to cut cutting rod 4 and feels the line to the magnetism in the magnetic path 12 according to certain speed, carries out certain contrast test, has increased the practicality of device.

Specifically, casing 1's inside is seted up flutedly 14, casing 1 front surface has the sliding door through hinge joint with the corresponding position department of recess 14, thermostat 20 has been placed on the bottom surface of recess 14 inside, in this embodiment, thermostat 20's model is AM09, thermostat 20 with the inside deposit of recess 14 is opened, the gaseous permeable casing 1 on the surface hole 19 of production carries out certain regulation and control to the temperature around magnetic path 12, thereby be used for experimenting the change of temperature around magnetic path 12, whether can cause the problem of influence to the electromagnetic induction phenomenon.

Specifically, a plurality of holes 19 are equidistantly distributed on the upper surface of the outer casing 1 at positions corresponding to the magnetic blocks 12, and the holes 19 can uniformly distribute the energy generated by the temperature controller 20 around the magnetic blocks 12.

Specifically, the width of the clamping block 16 is equal to the width of the cross section of the cutting rod 4, the cutting rod 4 can be clamped well by the clamping block 16, and the magnetic induction lines in the magnetic block 12 are cut at a certain speed, so that the electromagnetic phenomenon generated by cutting the magnetic induction lines at different speeds can be conveniently researched.

Specifically, the welding of four corners position department of shell body 1 lower surface has the base, and the antiskid cover has been cup jointed to the outside of base, and the antiskid cover can prevent to take place at the in-process electromagnetic induction experiment appearance gliding condition easily of experiment, guarantees the normal clear of experiment.

The utility model discloses a theory of operation and use flow: in the using process of the utility model, when the teaching experiment is carried out, the rotating wire 11 can be changed into different shapes, one end of the rotating wire 11 is sleeved on the iron block 7, the other end of the rotating wire is contacted with the upper surface of the battery 10, at the moment, the rotating wire 11 outside the battery 10 can be seen to rotate to a certain degree, the interest of students in electromagnetism is improved, certain interest is provided for classroom education, meanwhile, the battery 10, the rotating wire 11 and other components can be moved to the side of the magnetic block 12, the data of the cutting magnetic induction line when the rotating wire 11 rotates can be transmitted to the voltmeter by utilizing the lead 5 and observed, when the normal electricity experiment is carried out, the cutting rod 4 can be pulled by hand to move in the magnetic block 12, the switch valve 17 is closed at the same time, the leads 5 at the two ends of the cutting rod 4 can transmit the data to the voltmeter for data recording, and the air pump 6 is started, utilize the telescopic link 15 to be different from the clamp splice 16 of 6 one ends of air pump can cut the magnetic induction line of cutting rod 4 in to magnetic path 12 according to certain speed, carry out certain contrast test, the practicality of device has been increased, open the inside thermostat 20 of depositing of recess 14, the gaseous permeable shell body 1 on the surface hole 19 of production carries out certain regulation and control to the temperature around magnetic path 12, thereby be used for experimenting the change of temperature around magnetic path 12, whether can cause the problem of influence to the electromagnetic induction phenomenon, the certain functional effect of electromagnetic induction experiment appearance has been increased, the scope of experimental study has been improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an electromagnetic induction experiment appearance, includes that shell body (1) and shell body (1) front surface go up the block and are fixed with the voltmeter, its characterized in that: magnetic blocks (12) are placed on one side of the upper surface of the outer shell (1), fixing blocks (13) are arranged on the front side and the rear side of each magnetic block (12), each fixing block (13) is welded on the surface of the outer shell (1), a spring (18) is arranged between each fixing block (13) and each magnetic block (12), one end of each spring (18) is embedded into the corresponding fixing block (13), the other end of each spring is in contact with the surface of each magnetic block (12), one side of the upper surface of the outer shell (1), which is different from the corresponding magnetic block (12), is clamped and connected with a clamping block (9), a magnetic sheet (8) is bonded above each clamping block (9) through glue, an iron block (7) is placed above each magnetic sheet (8), the upper surface of each iron block (7) is magnetically connected with a battery (10), a rotary wire (11) is arranged on the outer portion of each battery (10), one end of each rotary wire (11), the other end is in contact with the upper surface of the battery (10).

2. The electromagnetic induction experimental instrument according to claim 1, characterized in that: the utility model discloses a cutting device, including shell body (1), outer casing (2), cutting rod (4), stay cord (3), cutting rod (4) and holding pole (2), the middle position department block of shell body (1) upper surface is fixed with holding pole (2), and one side of holding pole (2) is provided with cutting rod (4), is provided with between cutting rod (4) and the holding pole (2) stay cord (3), and cutting rod (4) are through stay cord (3) and holding pole (2) fixed connection, and the both ends of cutting rod (4) all cross-under have wire (5), shell body (1) upper surface is close to screw fixedly connected with ooff valve (17).

3. The electromagnetic induction experimental instrument according to claim 1, characterized in that: the upper surface of the outer shell (1) is close to one side position of the clamping block (9) and is fixedly connected with an air pump (6) through a bolt, an output end of the air pump (6) is rotatably connected with a telescopic rod (15), and the telescopic rod (15) is different from one end of the air pump (6) and is integrally formed with a clamping block (16).

4. The electromagnetic induction experimental instrument according to claim 1, characterized in that: a groove (14) is formed in the outer shell (1), a sliding door is hinged to the position, corresponding to the groove (14), of the front surface of the outer shell (1) through a hinge, and a temperature controller (20) is placed on the bottom surface inside the groove (14).

5. The electromagnetic induction experimental instrument according to claim 1, characterized in that: a plurality of holes (19) are equidistantly distributed on the upper surface of the outer shell (1) at positions corresponding to the magnetic blocks (12).

6. The electromagnetic induction experimental instrument according to claim 3, characterized in that: the width in the clamping block (16) is equal to the section width of the cutting rod (4).

7. The electromagnetic induction experimental instrument according to claim 1, characterized in that: the four corners position department welding of shell body (1) lower surface has the base, and the antiskid cover has been cup jointed to the outside of base.