CN205862666U - A kind of multifunction electromagnetic ferrum demonstrator - Google Patents
A kind of multifunction electromagnetic ferrum demonstrator Download PDFInfo
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- CN205862666U CN205862666U CN201620335450.0U CN201620335450U CN205862666U CN 205862666 U CN205862666 U CN 205862666U CN 201620335450 U CN201620335450 U CN 201620335450U CN 205862666 U CN205862666 U CN 205862666U
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- demonstrator
- electric magnet
- baffle plate
- glass film
- multifunction electromagnetic
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Abstract
This utility model belongs to electromagnetism field, is specifically related to a kind of multifunction electromagnetic ferrum demonstrator of the functions such as a kind of multifunction electromagnetic ferrum demonstrator, particularly collection junior physics electric magnet effect of magnetic influence factor demonstration, air cleaning, the demonstration of electric magnet magnetic field.A kind of multifunction electromagnetic ferrum demonstrator, described include a glass film plates and a baffle plate, described baffle plate is bonded on glass film plates, described baffle plate only engages the side of glass film plates in semi-circumference mode, electric magnet, permanent magnet pointer is also had on described glass film plates, it is respectively arranged with slide rheostat, electrode slice and battery grooves inside described baffle plate, outside described baffle plate, is additionally provided with air purifier.It is hard to understand that this multifunction electromagnetic ferrum demonstrator overcomes conventional electromagnets demonstrator complexity, the shortcoming that operability is the strongest, student is made to find out strong and weak change and the polarity of electric magnet of electric magnet magnetic field intuitively, the problem solving the demonstration of electric magnet Distribution of Magnetic Field, convenient succinct, transparent intuitively, it is simple to teaching.
Description
Technical field
This utility model belongs to electromagnetism field, is specifically related to a kind of multifunction electromagnetic ferrum demonstrator, particularly collects junior middle school
A kind of multifunction electromagnetic ferrum of the functions such as physical electromagnetic ferrum influence factor demonstration, air cleaning, the demonstration of electric magnet magnetic field is drilled
Show instrument.
Background technology
In junior physics experiment, electric magnet experiment, is the power being studied its magnetic by electric magnet.After energising, visual effect
Paperclip can only be attracted indirectly to reflect by iron nail；After changing electric current, the polarity of electric magnet also cannot judge, existing teaching appliance is only
Magnetic disappears after a loss of power improvement, and complex operation is complicated.Student can not be met to electric magnet full appreciation, Performance comparision list
One.
Utility model content
The purpose that this utility model is implemented is to provide a kind of multifunction electromagnetic ferrum teaching appliance, it is intended to solve existing electromagnetism
The problem only studying the ferromagnetic influence factor of electromagnetism that ferrum teaching appliance has, increases display electric magnet magnetic field, electromagnet poles
Property, purify air function.
Concrete technical scheme of the present utility model is as follows: a kind of multifunction electromagnetic ferrum demonstrator, described cup includes a glass
Glass base plate and a baffle plate, described baffle plate is bonded on glass film plates, it is characterised in that described baffle plate only engages in semi-circumference mode
The side of glass film plates, described glass film plates top also has electric magnet, permanent magnet pointer, is respectively arranged with cunning inside described baffle plate
Dynamic rheostat, electrode slice and battery grooves, be additionally provided with air purifier outside described baffle plate.
Further, described glass film plates inner hollow, the internal tiling of described glass film plates has one layer of swarf.
Further, described electric magnet is embedded in glass film plates, and described electric magnet two ends are each provided with a permanent magnet and refer to
Pin.
Further, described electric magnet is surrounded with the coil of four sections of each 50 circles, between described coil, has the joint can phase
Connect, described permanent magnet pointer indicates N, S pole.
Further, described battery grooves has three, and described battery grooves displays side by side, is respectively arranged with in described battery grooves
Two positive and negative electrode sheets.
Further, described also including a slide rheostat being built in groove, described slide rheostat can be by leading
Line and electrode slice A1, A2, B1, B2, C1, C2 connect respectively.
Further, described external 10 ohmages, described slide rheostat 20 Ω/0.5A are also included.
Further, an air purifier also it is circumscribed with outside described baffle plate.Described air purifier is lithium battery power supply,
Described air purifier does not has conductor interface, and described air purifier is detachable.
The beneficial effects of the utility model are:
1, directly can find out from glass film plates the magnetic field intensity in electric magnet magnetic field with or without and distribution situation, electric magnet bipolar magnetic
Induction is asymmetric, i.e. electric magnet bipolar magnetic induction is different, and by probing into further, in the middle part of electric magnet, magnetic field is
Weak place is not in middle, and possible cause is that Magnet is long placed in generation magnetic variation, owing to the effect of interiorly or exteriorly reason makes bar shaped
Distribution of Magnetic Field around Magnet changes, it is possible to can be depicted the distribution situation of magnetic induction line by the distribution situation of iron filings,
It is strong that magnetic induction line is distributed close local magnetic field, otherwise the most weak.The presence or absence of magnetic and the size of magnetic field intensity are the most also
Can be measured by external magnetic field intensity.
2, the two poles of the earth N, S situation of change of electric magnet can be observed from permanent magnet pointer.When electricity is pointed in the N pole of permanent magnet pointer
During one end of Magnet, then repelling each other according to peer, it is S pole that the coupling of different name the two poles of the earth understands surveyed electric magnet one end；In like manner, permanent magnet is worked as
When one end of electric magnet is pointed in the S pole of pointer, it is known that surveyed electric magnet one end is N pole.
3, voltage, electric current can be had to select, this demonstrator is provided with three kinds of voltages, electric current selects, and electrode slice A1 is public
Positive pole, when selecting electrode slice A2, A2B1B2, A2B1B2C1C2, voltage is respectively 1.5V, 3V, 4.5V.Can freely select during experiment
Selecting, along with the increase of selection voltage, the current intensity in electric magnet is also with increase, and its magnetic is also with enhancing, magnetic around
Field intensity is also with increase, and in visual iron filings, density of magnetic field is also with increase, can find out electromagnetism from iron filings or oerstedmeter
The change that ferromagnetic power is occurred.
4, the electric magnet wound coil number of turn can be had to select, and this demonstrator is provided with three kinds and selects around the number of turn, and Q is public ring
Coiling joint, when selecting W, E, R, the wound coil number of turn is respectively 50,100,150.During experiment can unrestricted choice, along with electromagnetism
Iron hoop increases around the number of turn, and when electric current is identical, " number of turn " of coil is the most, and the magnetic field of generation is the strongest, and the magnetic of electric magnet is just
The biggest, the most also can find out the change that electric magnet magnetic power is occurred from iron filings or oerstedmeter.(magnetic field intensity and circle
Number is directly proportional)
5, harmful substance in iron filings and air can be purified in experiment.By air purifier external outside baffle plate in the air
Suspended particulate substance is removed, it is to avoid harmful substance is to just in the infringement of developmental SH.
6, use this multifunction electromagnetic ferrum demonstrator can simplify experimental procedure, increase interest and operability, the energy of experiment
Find out distribution situation and the magnetic field intensity in electric magnet magnetic field intuitively, effectively prevent conventional electric magnet and attract iron nail experiment to interrupt
The problem that after electricity, magnetic can not be wholly absent, permanent magnet pointer avoids and originally can only judge electric magnet N, S by Ampere's law
The not aspect of pole, air purifier ensure that the safety of experiment, health, promotes the directly perceived concrete of teaching, glass bottom
In plate, iron filings can allow student's direct feel to magnetic field, it is simple to teaching.
7, to overcome conventional electromagnets demonstrator complexity hard to understand for this multifunction electromagnetic ferrum demonstrator, the strongest the lacking of operability
Point, can allow teacher's control variable flexibly operate, and allows student find out strong and weak change and the electromagnetism of electric magnet magnetic field intuitively
The polarity of ferrum, the problem solving the demonstration of electric magnet Distribution of Magnetic Field, convenient succinct, transparent intuitively, it is simple to teaching.
Accompanying drawing explanation
Fig. 1 is overall appearance figure of the present utility model；
Drawing reference numeral is: 1, glass film plates；2, slide rheostat；3, electrode slice；4, battery grooves；5, baffle plate；6, air
Depurator；7, permanent magnet pointer；8, electric magnet；A, the first battery case；B, the second battery case；C, the 3rd battery case；F1, first forever
Magnet pointer；F2 the second permanent magnet pointer；A1, A2, B1, B2, C1, C2 electrode slice.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is explained in further detail this utility model.Should be appreciated that specific embodiment described herein is used only for explaining
This utility model, is not used to limit this utility model.
On the contrary, this utility model contain any be defined by the claims do in spirit and scope of the present utility model
Replacement, amendment, equivalent method and scheme.Further, in order to make the public that this utility model to be had a better understanding, the most right
During details of the present utility model describes, detailed describe some specific detail sections.Do not have for a person skilled in the art
The description of these detail sections can also understand this utility model completely.
As it is shown in figure 1, a kind of multifunction electromagnetic demonstrator provided for this utility model, this multifunction electromagnetic described is demonstrated
Instrument includes glass film plates 1 and a baffle plate 5, and described baffle plate 5 is bonded at glass film plates 1 side, described glass in semi-circumference mode
The internal tiling in glass base plate 1 front end has one layer of iron filings, and described glass film plates 1 is embedded with electric magnet 8, and described electric magnet 8 two ends have
Arranging permanent magnet pointer 7,7 two, described permanent magnet pointer is respectively F1, F2, arranges a slide rheostat 2 at described baffle plate 5,
Described baffle plate 5 is bonded into battery grooves 4, and described battery grooves 4 is A, B, C respectively, and each battery grooves 4 is internal is respectively arranged with two electricity
Pole piece 3, described electrode slice 3 is A1A2, B1B2, C1C2 respectively；Described battery grooves 4 side is provided with an air purifier 6, institute
State air purifier 6 to be bonded in outside baffle plate 5.
In the first embodiment, the bare electromagnet in described multifunction electromagnetic ferrum demonstrator can be with iron nail, U-shaped electromagnetism
Ferrum is replaced.
In a second embodiment, described multifunction electromagnetic ferrum demonstrator also includes a contactor, 10 ohmages, leads
Line, ammeter, described contactor and ammeter are connected with described slide rheostat 2, electrode slice 3, electric magnet 8 by wire.
In the third embodiment, described multifunction electromagnetic ferrum demonstrator also includes that a gaussmeter, described gaussmeter do not access
In circuit, described magnetic strength is calculated as in prior art measuring the equipment of magnetic field intensity.
Electric magnet demonstrator principle: as shown in figure, is that alternative three joint No.5 cells fill in three battery grooves
Working as power supply, series-connected cell quantity is the most, be wound around the electric magnet that wire circle is many, and the magnetic induction line that iron filings are constituted is the closeest many, and it is described
Magnetic field the biggest, otherwise, then magnetic force is little,
The wound coil of electric magnet is provided with four each 50 circles of impartial aliquot, studies the electromagnetism iron hoop number of turn pair as variable
The ferromagnetic impact of electromagnetism, slide rheostat can study electric current pair according to experiment needs by the change of control circuit resistance
The ferromagnetic impact of electromagnetism.Electric magnet energising produces magnetic field, and power-off magnetic field disappears, and glass can be passed through in the magnetic field of described electric magnet
In glass base plate, the iron filings of tiling are intuitively found out, magnetic field intensity directly can be reflected by external oerstedmeter.Electric magnet two ends
Permanent magnet pointer indicate N pole and S pole respectively, the two poles of the earth of electric magnet can change, and changes the cathode and anode directions of battery or change
Coil-winding direction can change the magnetic pole of electric magnet.Repelling each other according to peer, synonyms pole attracts each other, and permanent magnet pointer revolves
Turn 180 °, otherwise, can extremely judge the N pole at electric magnet two ends, S pole according to the N pole of permanent magnet pointer, S.
Claims (6)
1. a multifunction electromagnetic ferrum demonstrator, it is characterised in that described electric magnet demonstrator includes glass film plates (1) and baffle plate
(5), described glass film plates (1) inner hollow, the internal tiling of described glass film plates (1) has one layer of swarf；
Described baffle plate (5) is bonded on segment glass base plate (1), constitutes electric magnet demonstrator operating space, does not engages glass film plates
(1) region is demonstration district, and described operating space includes three battery grooves (4), a slide rheostat (2) and air purifier
(6), described three battery grooves (4) are sequentially connected in series with slide rheostat (2)；
Described demonstration district includes the electric magnet (8) connected with operating space and the permanent magnet pointer being arranged on electric magnet (8) two ends
(7)。
A kind of multifunction electromagnetic ferrum demonstrator the most according to claim 1, it is characterised in that described battery grooves (4) by
Baffle plate encloses to put and forms, and is provided with positive and negative electrode sheet in described battery grooves (4), and described positive and negative electrode sheet is put inside groove relatively
Put.
A kind of multifunction electromagnetic ferrum demonstrator the most according to claim 1, it is characterised in that described electric magnet (8) is embedded
In glass film plates, described electric magnet (8) two ends are each provided with a permanent magnet pointer (7).
A kind of multifunction electromagnetic ferrum demonstrator the most according to claim 3, it is characterised in that described electric magnet sets on (8)
Having four sections of coils, every section of coil is 50 circles, can be sequentially connected with between described coil.
A kind of multifunction electromagnetic ferrum demonstrator the most according to claim 1, it is characterised in that described electric magnet demonstrator is also
Including being arranged at the slide rheostat (2) of operating space, described slide rheostat (2) can by wire and electrode slice A1, A2, B1,
B2, C1, C2 are sequentially connected with.
A kind of multifunction electromagnetic ferrum demonstrator the most according to claim 5, it is characterised in that described electric magnet demonstrator is also
Including external 10 ohmages, described slide rheostat (2) is the slip variable resistance of maximum value 20 Ω, rated current 0.5A
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620335450.0U CN205862666U (en) | 2016-04-20 | 2016-04-20 | A kind of multifunction electromagnetic ferrum demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620335450.0U CN205862666U (en) | 2016-04-20 | 2016-04-20 | A kind of multifunction electromagnetic ferrum demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205862666U true CN205862666U (en) | 2017-01-04 |
Family
ID=57643112
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620335450.0U Expired - Fee Related CN205862666U (en) | 2016-04-20 | 2016-04-20 | A kind of multifunction electromagnetic ferrum demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205862666U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806428A (en) * | 2018-05-31 | 2018-11-13 | 王强 | A kind of electromagnet teaching experimental provision |
| CN110632539A (en) * | 2019-09-27 | 2019-12-31 | 古丽涛 | Electromagnet magnetism size related factor detection equipment |
| CN114093226A (en) * | 2021-12-20 | 2022-02-25 | 乌鲁木齐职业大学 | Two-factor statistics demonstration device |
-
2016
- 2016-04-20 CN CN201620335450.0U patent/CN205862666U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806428A (en) * | 2018-05-31 | 2018-11-13 | 王强 | A kind of electromagnet teaching experimental provision |
| CN110632539A (en) * | 2019-09-27 | 2019-12-31 | 古丽涛 | Electromagnet magnetism size related factor detection equipment |
| CN114093226A (en) * | 2021-12-20 | 2022-02-25 | 乌鲁木齐职业大学 | Two-factor statistics demonstration device |
| CN114093226B (en) * | 2021-12-20 | 2024-01-16 | 乌鲁木齐职业大学 | Two factor statistics presentation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20170420 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |