CN108109493A - A kind of junior physics electromagnetic experimental device for electricity field - Google Patents
A kind of junior physics electromagnetic experimental device for electricity field Download PDFInfo
- Publication number
- CN108109493A CN108109493A CN201711489465.8A CN201711489465A CN108109493A CN 108109493 A CN108109493 A CN 108109493A CN 201711489465 A CN201711489465 A CN 201711489465A CN 108109493 A CN108109493 A CN 108109493A
- Authority
- CN
- China
- Prior art keywords
- cloche
- binding post
- loading plate
- steel cylinder
- experimental device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/181—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for electric and magnetic fields; for voltages; for currents
Abstract
The invention discloses a kind of junior physics electromagnetic experimental devices for electricity field, including the exposed conductor wire of cloche and middle part, the cloche top surface is equipped with loudspeaker, and seat of pulling strings is installed at the top of cloche inner wall, the seat of pulling strings is by filament with being connected at the top of thin steel cylinder, rotation needle is installed in the thin steel cylinder, the cloche is mounted on loading plate top surface, the loading plate top surface both sides are equipped with binding post, the exposed conductor wire both sides in the middle part are each passed through two circular hole columns and are connected with binding post, described two circular hole columns are mounted on loading plate crown center position both sides, and two circular hole columns are arranged in cloche, through hole is offered in the middle part of the binding post, and binding post screw top connection live conductor nut.The present invention, convenient experimental operation, electric wire are connected firmly, and galvanomagnetic-effect is more got information about convenient for student, facilitate look at operative condition of the electromagnetic force to object.
Description
Technical field
The present invention relates to a kind of electromagnetic experimental devices, are specifically that a kind of junior physics experiment of electromagnetism for electricity field fills
It puts, belongs to electricity field.
Background technology
There are magnetic field around the magnetic effect electrified wire of electric current, the direction in magnetic field is related with sense of current, this existing
Magnetic effect as being known as electric current, the phenomenon find in physicist's oersted by Denmark in 1820, and oersted is in the world the
One finds associated people, the solenoidal magnetic field of magnetic field energization of energization solenoid and the magnetic field of bar magnet between electricity and magnetic
Equally.The polarity at its both ends is related with current direction, and the relation between current direction and magnetic pole can be judged by Ampere's law, ampere
Rule：Solenoid is held with the right hand, four fingers is allowed to be directed toward sense of current in solenoid, then that end of thumb meaning is exactly solenoid
N poles, electromagnet is inserted into soft iron core in solenoid, when have electric current by when be magnetic, when no electric current, just loses magnetism, this
Kind magnet is called electromagnet, operation principle：The magnetic effect of electric current.
The connection of junior physics electromagnetic experimental device electric wire is relatively complicated in the prior art, and connection is insecure, easily leads to
Electrical anomaly, junior physics electromagnetic experimental device experiment effect is bad in the prior art, is not easy to student and more gets information about electricity
Magnetic effect is unfavorable for observing operative condition of the electromagnetic force to object.Therefore, propose regarding to the issue above a kind of for electricity field
Junior physics electromagnetic experimental device.
The content of the invention
The purpose of the present invention is that solve the above-mentioned problems and provides a kind of junior physics electricity for electricity field
Magnetic experimental provision.
The present invention is achieved through the following technical solutions above-mentioned purpose, and a kind of junior physics electromagnetism for electricity field is real
Experiment device, including the exposed conductor wire of cloche and middle part, the cloche top surface is equipped with loudspeaker, and cloche
Seat of pulling strings is installed, the seat of pulling strings, with being connected at the top of thin steel cylinder, rotation is equipped in the thin steel cylinder by filament at the top of inner wall
Turn needle, the cloche is mounted on loading plate top surface, and the loading plate top surface both sides are equipped with binding post, described
The exposed conductor wire both sides in middle part are each passed through two circular hole columns and are connected with binding post, and described two circular hole columns are mounted on loading plate
Crown center position both sides, and two circular hole columns are arranged in cloche, and through hole, and binding post are offered in the middle part of the binding post
Screw top connects live conductor nut.
Preferably, the conductor wire on both sides of the middle is equidistantly set respectively there are three thin steel cylinder.
Preferably, there are two the binding post is set, and two binding posts are separately mounted to loading plate top surface diagonal angle.
Preferably, diagonal angle offers threading hole at the top of the loading plate.
Preferably, the threading hole is U-shaped structure, and threading hole two-port is separately installed with binding post and circular hole column.
Preferably, the thin steel cylinder cross section is oval hoop, and thin steel cylinder is connected by " connecting rod " and rotation needle
It connects, and the length for rotating needle is more than the minor axis length of oval cross section.
Preferably, the loudspeaker bottom is arranged in cloche.
The beneficial effects of the invention are as follows：The present invention, convenient experimental operation, electric wire are connected firmly, more directly perceived convenient for student
Understanding galvanomagnetic-effect, facilitate look at operative condition of the electromagnetic force to object, by crimping nut to " external cord " carry out
It is fixedly connected, threading hole is offered by diagonal angle at the top of loading plate, the fastness of " external cord " connection is enhanced, passes through glass
The loudspeaker of startup on glass cover, which amplifies sound, to be propagated so that experiment of electromagnetism effect is more obvious, by the length for rotating needle
Degree is conducive to rotate the thin steel cylinder inner wall of needle rotating percussion more than the minor axis length of oval cross section.
Description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is binding post structure schematic diagram of the present invention；
Fig. 3 is conductor wire of the present invention and loading plate attachment structure schematic diagram；
Fig. 4 is the thin steel tube structure schematic diagram of the present invention.
In figure：1- loading plates, 101- threading holes, 2- binding posts, 201- through holes, 202- crimpings nut, 3- circular holes column, 4-
Thin steel cylinder, 401- rotations needle, 5- filaments, 6- are pulled strings seat, 7- loudspeakers, 8- cloches, 9- conductor wires.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
Please refer to Fig.1 shown in -4, a kind of junior physics electromagnetic experimental device for electricity field, including cloche 8 with
And the conductor wire 9 that middle part is exposed, 8 top surface of cloche is equipped with loudspeaker 7, and is equipped at the top of 8 inner wall of cloche
It pulls strings seat 6, needle 401 will be rotated by loudspeaker 7 hits the sound that thin steel cylinder 4 generates and expand, convenient for student more intuitively
Understand galvanomagnetic-effect, the seat 6 of pulling strings is connected by filament 5 with thin 4 top of steel cylinder, and rotary magnetic is equipped in the thin steel cylinder 4
Pin 401, the cloche 8 are mounted on 1 top surface of loading plate, and the 1 top surface both sides of loading plate are equipped with binding post 2,
Exposed 9 both sides of conductor wire in the middle part are each passed through two circular hole columns 3 and are connected with binding post 2, and described two circular hole columns 3 are installed
In 1 crown center position both sides of loading plate, and two circular hole columns 3 are arranged in cloche 8, and thin steel cylinder 4 is observed by cloche 8
By the direction that galvanomagnetic-effect moment swings, direction of the electromagnetic force to thin 4 stress of steel cylinder, 2 middle part of binding post are facilitated look at
Through hole 201, and 2 screw top of binding post connection live conductor nut 202 are offered, by crimping nut 202 to " external cord "
It is fixedly connected.
As a kind of technical optimization scheme of the present invention, 9 on both sides of the middle of conductor wire is equidistantly set respectively there are three thin steel
Cylinder 4 observes the effect of electromagnetic action convenient for user.
As a kind of technical optimization scheme of the present invention, there are two the binding post 2 is set, and two binding posts 2 are pacified respectively
Mounted in 1 top surface diagonal angle of loading plate.
As a kind of technical optimization scheme of the present invention, the 1 top diagonal angle of loading plate offers threading hole 101, increases
The strong fastness of " external cord " connection.
As a kind of technical optimization scheme of the present invention, the threading hole 101 is U-shaped structure, and 101 two-port of threading hole
It is separately installed with binding post 2 and circular hole column 3.
As a kind of technical optimization scheme of the present invention, thin 4 cross section of steel cylinder is oval hoop, and thin steel cylinder 4
It is connected by " connecting rod " with rotation needle 401, and the length for rotating needle 401 is more than the minor axis length of oval cross section, favorably
In rotation thin 4 inner wall of steel cylinder of 401 rotating percussion of needle.
As a kind of technical optimization scheme of the present invention, 7 bottom of loudspeaker is arranged in cloche 8.
In the use of the present invention, " external cord " is respectively inserted in the through hole 201 at 2 middle part of binding post by user first,
Crimping nut 202 is gently rotated with hand again, making crimping nut 202, tightly pressing on binding post 2, is completed by " external cord "
After the connection of binding post 2 and " external cord ", user powers to " external cord ", while the conductor wire 9 on circular hole column 3 is logical
Electricity, according to the magnetic effect of electricity, the magnetism for the moment generation that conductor wire 9 is powered causes the rotation needle 401 in thin steel cylinder 4 to rotate,
Since thin 4 cross section of steel cylinder is oval structure, so rotation needle 401 strikes thin 4 inner wall of steel cylinder and generates sound, and meanwhile it is conductive
4 moment of thin steel cylinder pulled from cord of 9 both sides of line swings to same direction, the expansion that sound passes through the startup on cloche 8
Sound device 7, which amplifies sound, to be propagated so that experiment of electromagnetism effect is more obvious.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requirement rather than above description limit, it is intended that all in the meaning and scope obtained with important document of claim by falling
Variation is included within the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
Using specification as an entirety, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
1. a kind of junior physics electromagnetic experimental device for electricity field, including the exposed conduction of cloche (8) and middle part
Line (9), it is characterised in that：Cloche (8) top surface is equipped with loudspeaker (7), and installation at the top of cloche (8) inner wall
It pulls strings seat (6), by filament (5) be connected at the top of thin steel cylinder (4), the thin steel cylinder (4) is interior to be equipped with the seat of pulling strings (6)
Needle (401) is rotated, the cloche (8) is mounted on loading plate (1) top surface, loading plate (1) the top surface both sides
Binding post (2) is installed；
The middle part exposed conductor wire (9) both sides are each passed through two circular hole columns (3) and are connected with binding post (2), described two
Circular hole column (3) is mounted on loading plate (1) crown center position both sides, and two circular hole columns (3) are arranged in cloche (8), institute
It states and through hole (201) is offered in the middle part of binding post (2), and binding post (2) screw top connection live conductor nut (202).
2. a kind of junior physics electromagnetic experimental device for electricity field according to claim 1, it is characterised in that：Institute
Conductor wire (9) on both sides of the middle is stated equidistantly to be set respectively there are three thin steel cylinder (4).
3. a kind of junior physics electromagnetic experimental device for electricity field according to claim 1, it is characterised in that：Institute
It states there are two binding post (2) sets, and two binding posts (2) are separately mounted to loading plate (1) top surface diagonal angle.
4. a kind of junior physics electromagnetic experimental device for electricity field according to claim 1, it is characterised in that：Institute
It states diagonal angle at the top of loading plate (1) and offers threading hole (101).
5. a kind of junior physics electromagnetic experimental device for electricity field according to claim 1, it is characterised in that：Institute
Threading hole (101) is stated as U-shaped structure, and threading hole (101) two-port is separately installed with binding post (2) and circular hole column (3).
6. a kind of junior physics electromagnetic experimental device for electricity field according to claim 1, it is characterised in that：Institute
Thin steel cylinder (4) cross section is stated as oval hoop, and thin steel cylinder (4) is connected by " connecting rod " with rotation needle (401), and revolve
The length for turning needle (401) is more than the minor axis length of oval cross section.
7. a kind of junior physics electromagnetic experimental device for electricity field according to claim 1, it is characterised in that：Institute
Loudspeaker (7) bottom is stated to be arranged in cloche (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711489465.8A CN108109493A (en) | 2017-12-30 | 2017-12-30 | A kind of junior physics electromagnetic experimental device for electricity field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711489465.8A CN108109493A (en) | 2017-12-30 | 2017-12-30 | A kind of junior physics electromagnetic experimental device for electricity field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108109493A true CN108109493A (en) | 2018-06-01 |
Family
ID=62215312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711489465.8A Pending CN108109493A (en) | 2017-12-30 | 2017-12-30 | A kind of junior physics electromagnetic experimental device for electricity field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108109493A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257614A (en) * | 2018-12-03 | 2020-06-09 | 新乡学院 | Device for measuring transport current in superconducting wire by magnetic needle pressure-sensitive element method |
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| CN202601049U (en) * | 2012-05-31 | 2012-12-12 | 盛冬燕 | Current magnetic effect experimental instrument |
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| CN204680279U (en) * | 2015-04-29 | 2015-09-30 | 张悦 | A kind of H. C. Oersted Experiment demonstration board |
| CN205487039U (en) * | 2016-02-02 | 2016-08-17 | 周建中 | Electric magnetic phenomena's teaching demonstration teaching reacts |
| RU2015120753A (en) * | 2015-06-01 | 2016-12-20 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | DEVICE FOR CREATING CHARGES ON BODY SURFACE AND METHOD OF ITS APPLICATION |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2139085Y (en) * | 1992-11-03 | 1993-07-28 | 林深坑 | Bicycle bell |
| CN2156105Y (en) * | 1993-05-08 | 1994-02-16 | 王伟东 | Bicycle theft-proof bell |
| CN2173439Y (en) * | 1993-11-18 | 1994-08-03 | 李恒 | Straight line current magnetic field display device |
| CN202352195U (en) * | 2011-09-26 | 2012-07-25 | 王富民 | Oster experimental demonstrator |
| CN202434020U (en) * | 2011-12-30 | 2012-09-12 | 曾文水 | Alarm capable of predicating earthquakes |
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| CN204667733U (en) * | 2015-03-26 | 2015-09-23 | 卿鸿影 | H. C. Oersted Experiment instrument |
| CN204680279U (en) * | 2015-04-29 | 2015-09-30 | 张悦 | A kind of H. C. Oersted Experiment demonstration board |
| RU2015120753A (en) * | 2015-06-01 | 2016-12-20 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | DEVICE FOR CREATING CHARGES ON BODY SURFACE AND METHOD OF ITS APPLICATION |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111257614A (en) * | 2018-12-03 | 2020-06-09 | 新乡学院 | Device for measuring transport current in superconducting wire by magnetic needle pressure-sensitive element method |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180601 |