CN201725466U - Universal electromagnetic presentation box - Google Patents
Universal electromagnetic presentation box Download PDFInfo
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- CN201725466U CN201725466U CN200920254168XU CN200920254168U CN201725466U CN 201725466 U CN201725466 U CN 201725466U CN 200920254168X U CN200920254168X U CN 200920254168XU CN 200920254168 U CN200920254168 U CN 200920254168U CN 201725466 U CN201725466 U CN 201725466U
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- electromagnet
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Abstract
The utility model relates to a teaching tool, in particular to a universal electromagnetic presentation box which can solve problems of existing electromagnetic teaching tools such as inconvenient carrying, complicated production and high cost. The utility model comprises an upper box body and a lower box body, three hollow cavities are arranged in the upper box body, an iron sheet is arranged in a left hollow cavity, a first electromagnet is fixed on a back of the iron sheet, a magnetic needle is arranged in a middle hollow cavity, iron nails are arranged in the right hollow cavity, solenoids are arranged on the iron nails, a second electromagnet is arranged in a lower part of the right hollow cavity, a magnetic force tester is arranged on one end of the second electromagnet, the lower box body consists of six hollow cavities and a cover plate, electromagnetic crane model components are arranged in a first hollow cavity and a second hollow cavity, conductor movement instrument and presentation instrument components are arranged on the back of a cover plate back of the second hollow cavity, a sensitive meter is arranged in a third hollow cavity, motor model components are arranged in a fourth hollow cavity, electric bell model components are arranged in a fifth hollow cavity, and electromagnetic relay model components are arranged in a sixth hollow cavity. The universal electromagnetic presentation box has the advantages of high comprehensive performance, multi purposes, compact, simple and rational structure, flexible and convenient operation, and is convenient for carrying.
Description
Technical field
The utility model relates to a kind of teaching aid, is specially a kind of electromagnetic induction general-purpose demonstration box.
Background technology
Teaching aid has the irreplaceable effect of other means as the apparatus of teacher's aided education.No matter which subject, certain teaching aid can be arranged as aid, the teacher really includes teaching aid in teaching process as required, bases oneself upon reality, selects and use in good time teaching aid, can excite student's learning interest, outstanding focal points break through teaching difficulty, optimize classroom structures, development student innovative thinking power can effectively be improved the quality of teaching and efficient.In recent years, along with improving constantly of education and instruction level, the variation of teaching aid is also increasing, some Self-made Realia particularly, and material source is extensive, obtain simple, kind embraces a wide spectrum of ideas, and the thing of industrial leftover pieces, daily living article, old and useless article, nature, outmoded instrument etc. are arranged, and cost of manufacture is lower, even cost free, it is also handy to use.
At present, what used teaching aid mostly was the Ministry of Education of the state greatly and is allotted in the particularly relevant electromagnetic induction chapters and sections in physical teaching course, be generally one group of teaching aid of an experiment, inconvenience is carried in preservation, and manufacturing process complexity, cost are higher, only the more important thing is and to demonstrate electromagnetic principle, lack electromagnetic principle is carried out the simulation of practice, can't satisfy the field research requirement.
Summary of the invention
The utility model particularly carries problems such as inconvenience, manufacturing process complexity, cost height about used teaching aid in the electromagnetic induction chapters and sections exists to preserve in order to solve in the existing physical teaching course, and a kind of electromagnetic induction general-purpose demonstration box is provided.
The utility model is to adopt following technical scheme to realize: electromagnetic induction general-purpose demonstration box, comprise the upper cartridge body and the lower box body that cooperatively interact, the top is provided with some direct supply output wiring terminals in the upper cartridge body, and direct supply output wiring terminal one end is provided with power switch, and the other end is provided with pilot lamp D
1The upper cartridge body bosom is provided with three cavitys, and the fixing iron plate of lower end and box body is set in the cavity of left side, and the iron plate back side is fixed with two ends and is connected with binding post a
1, b
1First electromagnet, iron plate one side is equipped with two ends and is connected with binding post a
2, b
2Pilot lamp D
2Needle vertically is installed in the middle cavity, the top is horizontally arranged with iron nail in the cavity of right side, iron nail one end is set up in the locating piece that is fixed on the inwall, the other end stretches in the middle cavity, is set with solenoid on the iron nail, and the solenoid two ends are provided with the lug plate that is connected with power-line terminal, the below is provided with second electromagnet that is in series or in parallel to form by two groups of inductive coils in the cavity of right side, and second electromagnet, one end is provided with magnetic force dynamometry pin;
Lower box body cooperatively interacts by six cavitys and with it and constitutes with cover plate that lower box body flexibly connects, first cavity and second cavity connect and are provided with, the embedded electromagnetic lifter model component that is placed with of both formed cavitys, first cavity below is fixed with the positioning base of electromagnetic lifter model component, be provided with conductor motion instrument demonstrator assembly with the corresponding cover plate of second cavity back side, be placed with sensitive ammeter in the 3rd cavity, be embedded with the motor model assembly in the 4th cavity, be embedded with the electric bell model component in the 5th cavity, be embedded with electromagnetic relay model component and AC power in the 6th cavity, be provided with AC power output wiring terminal and pilot lamp D with the corresponding cover plate of the 6th cavity front
3
Adopt structural design of the present utility model, it is demonstration to electromagnetics principle and part electromagnetics principle practice that upper cartridge body mainly acts on, comprise (1) electrical conductor magnetic field, magnetic pole experiment (the solenoid right-hand rule), comprise the demonstration of demonstration, winding direction and the magnetic pole relation of direction of current and magnetic pole relation; (2) size of current and magnetic force, coil turn and the experiment of magnetic force magnitude relationship; (3) the conductor cutting magnetic line produces faradic experiment; (4) dynamic loudspeaker principle simulated experiment; (5) generator principle simulated experiment; The main effect of lower box body is the application of a principle to practice of visual simulation electromagnetics, comprises; (1) electromagnetic lifter principle simulated experiment; (2) conductor motion demonstrating instrument; (3) motor principle simulated experiment; (4) electric bell principle simulated experiment; (5) electromagnetic relay principle simulated experiment;
Teaching aid described in the utility model incisively and vividly represented the electromagnetism secret, vivid simulation principle utilization, the various phenomenons and the rule of electromagnetic induction can be demonstrated out with it, can satisfy the requirement of middle school teaching demonstration, not only can carry out principle demonstration, but also can carry out the simulation of electromagnetic principle practice, and comprehensive stronger, a multi-purpose instrument; Demonstration effect vivid and interesting, visual in image, help to improve student's learning interest, excite innovative consciousness of students, be expressly understood and grasp institute securely and gain knowledge; Its compact conformation, advantages of simple, flexible and convenient operation, draw materials easily, preserve easy to carry, have existing promulgated by the State Council instrument in bulk to be difficult the superiority of analogy, have certain popularization value and use value.
Description of drawings
Fig. 1 is the structural representation of upper cartridge body described in the utility model
Fig. 2 is the planar structure synoptic diagram of lower box body described in the utility model
Fig. 3 is the structural representation of electromagnetic lifter model component among Fig. 2
Fig. 4 is the structural representation of conductor motion demonstrating instrument assembly among Fig. 2
Fig. 5 is the structural representation of motor model assembly among Fig. 2
Fig. 6 is the structural representation of electric bell model component among Fig. 2
Fig. 7 is the structural representation of electromagnetic relay model component among Fig. 2
Among the figure: the 1-upper cartridge body; The 2-lower box body; 3-direct supply output wiring terminal; The 4-power switch; The 5-iron plate; 6-first electromagnet; The 7-needle; The 8-iron nail; The 9-locating piece; The 10-solenoid; The 11-lug plate; 12-second electromagnet; 13-magnetic force dynamometry pin; 14-first cavity; 15-second cavity; The 16-positioning base; 17-electromagnetic lifter model component; 18-conductor motion demonstrating instrument assembly; 19-the 3rd cavity; 20-the 4th cavity; 21-motor model assembly; 22-the 5th cavity; 23-electric bell model component; 24-electromagnetic relay model component; 25-AC power output wiring terminal; 17.1-electric rotating machine; 17.2-hollow sting; 17.3-transmission shaft; 17.4-rotate flat bar; 17.5-lifting motor; 17.6-lifting swiveling wheel; 17.7-halliard; 17.8-the 3rd electromagnet; 17.9-rotary switch; 17.10-direction switch; 17.11-Magnetic sucking switch; 18.1-first permanent magnet; 18.2-base; 18.3-travel(l)ing rest; 18.4-first inductive coil; 18.5-current reverser; 21.1-second permanent magnet; 21.2-bearing; 21.3-rotating shaft; 21.4-second inductive coil; 21.5-commutative ring; 21.6-brush; 23.1-the 4th electromagnet; 23.2-knock bar; 23.3-regulating spring; 23.4-bell lid; 23.5-gauge tap; 24.1-the 5th electromagnet; 24.2-insulation rod; 24.3-annular small magnet; 24.4-elastic contact blade; 24.5-switch; 24.6-fixed contact; 26-dry cell case; 27-the 6th cavity.
Embodiment
Electromagnetic induction general-purpose demonstration box comprises the upper cartridge body 1 and the lower box body 2 that cooperatively interact, as shown in Figure 1, the top is provided with some direct supply output wiring terminals 3 in the upper cartridge body 1, successively to 12V, direct supply output wiring terminal 3 one ends are provided with power switch 4 from deep low gear 6V, and the other end is provided with pilot lamp D
1, the below is embedded with dry cell case 26 in the upper cartridge body 1; Upper cartridge body 1 bosom is provided with three cavitys, is respectively equipped with cover plate on three cavitys in the upper cartridge body 1; Lower end and the fixing iron plate 5 of box body are set in the cavity of left side, and the iron plate back side is fixed with two ends and is connected with binding post a
1, b
1First electromagnet 6, iron plate 5 one sides are equipped with two ends and are connected with binding post a
2, b
2Pilot lamp D
2Needle 7 vertically is installed in the middle cavity, being cut into the back magnetization of pointer shape by the steel scrap tape measure forms, the top is horizontally arranged with iron nail 8 in the cavity of right side, iron nail 8 one ends are set up in the locating piece 9 that is fixed on the inwall, the other end stretches in the middle cavity, be set with solenoid 10 on the iron nail 8, can be standby two, winding direction is opposite, solenoid 10 two ends are provided with the lug plate 11 that is connected with power-line terminal, and the below is provided with second electromagnet, 12, the second electromagnet, one end that is in series or in parallel to form by two groups of inductive coils and is provided with magnetic force dynamometry pin 13 in the cavity of right side;
Experiment one: the demonstration of the demonstration of direction of current and magnetic pole relation, winding direction and magnetic pole relation, utilize the interior needle of middle cavity and be positioned at the right side cavity iron nail and on solenoid; Experiment two: size of current and magnetic force, coil turn and the experiment of magnetic force magnitude relationship, utilize second electromagnet and magnetic force dynamometry pin (utilizing the spring balance principle to measure the magnetic force size) in the cavity of right side to demonstrate; Experiment three: the conductor cutting magnetic line produces faradic experiment, with pilot lamp D
2The binding post a at two ends
2, b
2Connect by two binding posts on electric wire and the electromagnet, utilize electromagnet constantly to beat second permanent magnet 21.1 of lower box body built-in motor model component 21 then, can see pilot lamp D
2Be interrupted flicker, also can be generator simulated experiment demonstration; Experiment four: the simulated experiment of dynamic loudspeaker principle, with the binding post a at the first electromagnet two ends
1, b
1Be communicated with the AC power output wiring terminal on the lower box body, first electromagnet can attract the iron plate vibration sounding under the effect of exchange current.
As shown in Figure 2, lower box body 2 cooperatively interacts by six cavitys and with it and constitutes with cover plate that lower box body 1 flexibly connects, every cover plate is all used hinge and lower box body active link, time spent uncovers, in the cavity of every cover plate below an experiment package is arranged all, it is tight to use up lid, easy to operate, be beneficial to preservation, first cavity 14 and second cavity 15 connect and are provided with, the embedded electromagnetic lifter model component 17 that is placed with of both formed cavitys, first cavity below is fixed with the positioning base 16 of electromagnetic lifter model component, be provided with conductor motion demonstrating instrument assembly 18 with the corresponding cover plate of second cavity back side, be placed with sensitive ammeter in the 3rd cavity 19, be embedded with in the 4th cavity 20 in motor model assembly 21, the five cavitys 22 and be embedded with electric bell model component 23, be embedded with electromagnetic relay model component 24 and AC power in the 6th cavity 27, be provided with AC power output wiring terminal 25 and pilot lamp D with the corresponding cover plate of the 6th cavity front
3
As shown in Figure 3, described electromagnetic lifter model component 17 comprises the electric rotating machine 17.1 that is installed on the positioning base 16, electric rotating machine top tressel is provided with hollow sting 17.2, run through in the hollow sting transmission shaft 17.3 that the lower end is connected with the electric rotating machine output shaft is set, the transmission shaft upper end is connected with the flat bar 17.4 of rotation, rotate flat bar one end lifting motor 17.5 is installed, a lifting swiveling wheel 17.6 that is driven by lifting motor and an end are wrapped in the halliard 17.7 on the lifting swiveling wheel, the halliard other end is wrapped in the flat bar other end of rotation, and end is hung with the 3rd electromagnet 17.8; Also be provided with the rotary switch 17.9, direction switch 17.10 and the Magnetic sucking switch 17.11 that lay respectively on electric rotating machine, lifting motor and the 3rd electromagnet current supply circuit on the positioning base 16.The demonstration step is as follows, press direction switch, the lifting motor rotation drives the lifting swiveling wheel and rotates, and the 3rd electromagnet begins to descend, when the 3rd electromagnet is reduced to the absorbate body, press Magnetic sucking switch, the energising of the 3rd electromagnet, object is firmly inhaled on electromagnet, and then press direction switch, make that the 3rd electromagnet begins to rise, when rising to the top, press rotary switch, transmission shaft in the hollow sting and rotate flat bar and begin to rotate, stop after going to the appropriate location, the 3rd electromagnet is descended, press Magnetic sucking switch tripping magnet circuit, magnetic force disappears, and object unloads.After using up, with hollow sting, rotate flat bar, the 3rd electromagnet etc. and be positioned in the box body.
As shown in Figure 4, described conductor motion demonstrating instrument assembly 18 comprises first permanent magnet 18.1 that is inlaid in the cover plate, first permanent magnet, one side is provided with base 18.2, be connected with travel(l)ing rest 18.3 on the base, the travel(l)ing rest below is hung with first inductive coil, 18.4, the first permanent magnet opposite sides that are positioned at the permanent magnet top and is provided with two direction of current pilot lamp D
4, also be provided with binding post a on the cover plate
3, b
3And current reverser 18.5.The demonstration step is as follows: travel(l)ing rest is holded up, made the inductive coil of winning place first permanent magnet top, with binding post a
3, b
3By lead and power connection, the energising of first inductive coil also moves, and one of them pilot lamp is shinny, promotes current reverser, and first inductive coil moves round about, and the another side pilot lamp is shinny.As press the beat of coil swing, make electric current off and on, just coil do not stop swung swing, as first permanent magnet is turned over, the first inductive coil swaying direction is also opposite.In addition, power lead is connected on the sensitive ammeter, stirs coil with finger and play on the swing, can see that meter pointer also with the coil swing, has swung out swing.
As shown in Figure 5, described motor model assembly 21 comprises second permanent magnet 21.1 that is inlaid in the cover plate back side, the cover plate back side that is positioned at the second permanent magnet both sides is fixed with bearing 21.2, set up rotating shaft 21.3 between two bearings, be equipped with in the rotating shaft with the second permanent magnet position over against second inductive coil 21.4, rotating shaft one end is provided with commutative ring 21.5 that is connected with second inductive coil and the brush 21.6 that contacts with commutative ring; The cover plate upper and lower is respectively equipped with pilot lamp D
5, the cover plate top is provided with binding post a
4, b
4The demonstration step is as follows: with binding post a
4, b
4By lead and power connection, last pilot lamp D
5Bright, electric current conducts to second inductive coil by brush, commutative ring, coil and the mutual repulsion mutually of second permanent magnet, and inductive coil begins just to change, reverse energized, following pilot lamp D
5Bright, the coil backward rotation; In addition, with binding post a
4, b
4Join with sensitive ammeter, forward is stirred coil, and the pointer positive deflection is oppositely stirred coil, the reverse deflection of pointer.
As shown in Figure 6, described electric bell model component 23 comprises the 4th electromagnet 23.1 that is installed in the cover plate back side, on the cover plate and with the 4th electromagnet over against the position be provided with and knock bar 23.2, knocking the bar upper end flexibly connects with cover plate, the lower end is connected with cover plate by regulating spring 23.3, the 4th electromagnet below and be positioned at and be fixed with bell lid 23.4 on the cover plate that knocks bar lower end one side also is provided with the gauge tap 23.5 that is positioned on the 4th electromagnet current supply circuit on the cover plate.The demonstration step is as follows: open gauge tap, connect AC power, the energising of the 4th electromagnet, under the effect of exchange current, electromagnet constantly with knock bar and inhale mutually, cause and knock bar and impact the bell lid discontinuously, send very big sound.Knock the amplitude that bar impacts by the regulating spring scalable.
As shown in Figure 7, described electromagnetic relay model component 24 comprises the 5th electromagnet 24.1 and the connected binding post a that is fixed on the cover plate back side
5, b
5The 5th electromagnet one side transverse strands is provided with insulation rod 24.2, be set with on the insulation rod with the 5th electromagnet position over against annular small magnet 24.3, the annular small magnet outside is provided with connected elastic contact blade 24.4, the cover plate top is provided with switch 24.5 and connected two fixed contacts 24.6, the elastic contact blade upper end also is provided with the pilot lamp D that is positioned on switch, the elastic contact blade current supply circuit on the cover plate between two fixed contacts
6The demonstration step is as follows: with binding post a
5, b
5By lead and power connection, the energising of the 5th electromagnet is stirred switch left, pilot lamp D
6Bright, press battery main switch, electromagnet produces magnetic force, promotes annular small magnet and moves right along insulation rod, drives elastic contact blade simultaneously and moves right, disconnecting circuit, pilot lamp D
6Extinguish; Stir switch to the right, pilot lamp D
6It is bright to become the back of going out earlier.
Claims (8)
1. an electromagnetic induction general-purpose demonstration box comprises the upper cartridge body (1) and the lower box body (2) that cooperatively interact, it is characterized in that:
The top is provided with some direct supply output wiring terminals (3) in the upper cartridge body (1), and direct supply output wiring terminal (3) one ends are provided with power switch (4), and the other end is provided with pilot lamp D
1Upper cartridge body (1) bosom is provided with three cavitys, and the fixing iron plate (5) of lower end and box body is set in the cavity of left side, and the iron plate back side is fixed with two ends and is connected with binding post a
1, b
1First electromagnet
(6), iron plate (5) one sides are equipped with two ends and are connected with binding post a
2, b
2Pilot lamp D
2Needle (7) vertically is installed in the middle cavity, the top is horizontally arranged with iron nail (8) in the cavity of right side, iron nail (8) one ends are set up in the locating piece (9) that is fixed on the inwall, the other end stretches in the middle cavity, be set with solenoid (10) on the iron nail (8), solenoid (10) two ends are provided with the lug plate (11) that is connected with power-line terminal, the below is provided with second electromagnet (12) that is in series or in parallel to form by two groups of inductive coils in the cavity of right side, and second electromagnet, one end is provided with magnetic force dynamometry pin (13);
Lower box body (2) cooperatively interacts by six cavitys and with it and constitutes with cover plate that lower box body (1) flexibly connects, first cavity (14) connects with second cavity (15) and is provided with, the embedded electromagnetic lifter model component (17) that is placed with of both formed cavitys, first cavity below is fixed with the positioning base (16) of electromagnetic lifter model component, be provided with conductor motion demonstrating instrument assembly (18) with the corresponding cover plate of second cavity back side, the 3rd cavity is placed with sensitive ammeter in (19), be embedded with motor model assembly (21) in the 4th cavity (20), be embedded with electric bell model component (23) in the 5th cavity (22), be embedded with electromagnetic relay model component (24) and AC power in the 6th cavity (27), be provided with AC power output wiring terminal (25) and pilot lamp D with the corresponding cover plate of the 6th cavity front
3
2. a kind of electromagnetic induction general-purpose demonstration box according to claim 1, it is characterized in that described electromagnetic lifter model component (17) comprises the electric rotating machine (17.1) that is installed on the positioning base (16), electric rotating machine top tressel is provided with hollow sting (17.2), run through in the hollow sting transmission shaft (17.3) that the lower end is connected with the electric rotating machine output shaft is set, the transmission shaft upper end is connected with rotation flat bar (17.4), rotate flat bar one end lifting motor (17.5) is installed, a lifting swiveling wheel (17.6) that is driven by lifting motor and an end are wrapped in the halliard (17.7) on the lifting swiveling wheel, the halliard other end is wrapped in the flat bar other end of rotation, and end is hung with the 3rd electromagnet (17.8); Also be provided with the rotary switch (17.9), direction switch (17.10) and the Magnetic sucking switch (17.11) that lay respectively on electric rotating machine, lifting motor and the 3rd electromagnet current supply circuit on the positioning base (16).
3. a kind of electromagnetic induction general-purpose demonstration box according to claim 1, it is characterized in that described conductor motion demonstrating instrument assembly (18) comprises first permanent magnet (18.1) that is inlaid in the cover plate, first permanent magnet, one side is provided with base (18.2), be connected with travel(l)ing rest (18.3) on the base, the travel(l)ing rest below is hung with first inductive coil (18.4) that is positioned at the permanent magnet top, and the first permanent magnet opposite side is provided with two direction of current pilot lamp D
4, also be provided with binding post a on the cover plate
3, b
3And current reverser (18.5).
4. a kind of electromagnetic induction general-purpose demonstration box according to claim 1, it is characterized in that described motor model assembly (21) comprises second permanent magnet (21.1) that is inlaid in the cover plate back side, the cover plate back side that is positioned at the second permanent magnet both sides is fixed with bearing (21.2), set up rotating shaft (21.3) between two bearings, be equipped with in the rotating shaft with the second permanent magnet position over against second inductive coil (21.4), rotating shaft one end is provided with commutative ring (21.5) that is connected with second inductive coil and the brush (21.6) that contacts with commutative ring; The cover plate upper and lower is respectively equipped with pilot lamp D
5, the cover plate top is provided with binding post a
4, b
4
5. a kind of electromagnetic induction general-purpose demonstration box according to claim 1, it is characterized in that described electric bell model component (23) comprises the 4th electromagnet (23.1) that is installed in the cover plate back side, on the cover plate and with the 4th electromagnet over against the position be provided with and knock bar (23.2), knocking the bar upper end flexibly connects with cover plate, the lower end is connected with cover plate by regulating spring (23.3), the 4th electromagnet below and be positioned at and be fixed with bell lid (23.4) on the cover plate that knocks bar lower end one side also is provided with the gauge tap (23.5) that is positioned on the 4th electromagnet current supply circuit on the cover plate.
6. a kind of electromagnetic induction general-purpose demonstration box according to claim 1 is characterized in that described electromagnetic relay model component (24) comprises the 5th electromagnet (24.1) and the connected binding post a that is fixed on the cover plate back side
5, b
5The 5th electromagnet one side transverse strands is provided with insulation rod (24.2), be set with on the insulation rod with the 5th electromagnet position over against annular small magnet (24.3), the annular small magnet outside is provided with connected elastic contact blade (24.4), the cover plate top is provided with switch (24.5) and connected two fixed contacts (24.6), the elastic contact blade upper end also is provided with the pilot lamp D that is positioned on switch, the elastic contact blade current supply circuit on the cover plate between two fixed contacts
6
7. a kind of electromagnetic induction general-purpose demonstration box according to claim 1 is characterized in that the below is embedded with dry cell case (26) in the described upper cartridge body (1).
8. a kind of electromagnetic induction general-purpose demonstration box according to claim 1 is characterized in that being respectively equipped with cover plate on three cavitys in the upper cartridge body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920254168XU CN201725466U (en) | 2009-10-21 | 2009-10-21 | Universal electromagnetic presentation box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920254168XU CN201725466U (en) | 2009-10-21 | 2009-10-21 | Universal electromagnetic presentation box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725466U true CN201725466U (en) | 2011-01-26 |
Family
ID=43493811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920254168XU Expired - Fee Related CN201725466U (en) | 2009-10-21 | 2009-10-21 | Universal electromagnetic presentation box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201725466U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102693665A (en) * | 2011-03-25 | 2012-09-26 | 唐建一 | Boxed intellectually-assembled magnetic levitation device |
| CN104064086A (en) * | 2014-06-25 | 2014-09-24 | 南宁市第二中学 | Moving-magnet-type loudspeaker for teaching |
| CN106781913A (en) * | 2016-12-23 | 2017-05-31 | 陈雁泽 | A kind of electromagnetism magnetic force apparatus for demonstrating |
| CN108428396A (en) * | 2018-05-29 | 2018-08-21 | 陈骁骅 | A kind of electromagnetism swing applied to physics teaching demonstration |
| CN108461023A (en) * | 2018-05-29 | 2018-08-28 | 陈骁骅 | Physics teaching electromagnetism demonstration device with lift adjustment structure |
| CN113376201A (en) * | 2021-06-21 | 2021-09-10 | 吉林大学 | Device and method for collecting NiTi phase transition temperature experimental data |
-
2009
- 2009-10-21 CN CN200920254168XU patent/CN201725466U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102693665A (en) * | 2011-03-25 | 2012-09-26 | 唐建一 | Boxed intellectually-assembled magnetic levitation device |
| CN104064086A (en) * | 2014-06-25 | 2014-09-24 | 南宁市第二中学 | Moving-magnet-type loudspeaker for teaching |
| CN106781913A (en) * | 2016-12-23 | 2017-05-31 | 陈雁泽 | A kind of electromagnetism magnetic force apparatus for demonstrating |
| CN106781913B (en) * | 2016-12-23 | 2019-01-01 | 陈雁泽 | A method of galvanometer tilt angle in monitoring electromagnetism magnetic force apparatus for demonstrating |
| CN108428396A (en) * | 2018-05-29 | 2018-08-21 | 陈骁骅 | A kind of electromagnetism swing applied to physics teaching demonstration |
| CN108461023A (en) * | 2018-05-29 | 2018-08-28 | 陈骁骅 | Physics teaching electromagnetism demonstration device with lift adjustment structure |
| CN113376201A (en) * | 2021-06-21 | 2021-09-10 | 吉林大学 | Device and method for collecting NiTi phase transition temperature experimental data |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20111021 |