CN206400903U

CN206400903U - A kind of multifunctional magnetic experiment teaching aid

Info

Publication number: CN206400903U
Application number: CN201620679358.6U
Authority: CN
Inventors: 靳延
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-30
Filing date: 2016-06-30
Publication date: 2017-08-11
Anticipated expiration: 2026-06-30

Abstract

The utility model is related to a kind of classroom instruction instrument, and in particular to a kind of multifunctional magnetic experiment teaching aid.The utility model facilitates do it yourself connecting wire, power supply of academics and students and carries out the teaching or study demonstration of magneto-electric behavior by the way that bell lid, flexure strip, bell clapper and electromagnetic assembly are set on one substrate, and provided with binding post.

Description

A kind of multifunctional magnetic experiment teaching aid

Technical field

The utility model is related to a kind of classroom instruction instrument, and in particular to a kind of multifunctional magnetic experiment teaching aid.

Background technology

The physical characteristic of electromagnetic field is always the emphasis in physics teaching in secondary school, is that teacher must teach, student must slap The knowledge point held.Due to being typically electromagnetically invisible, it can not touch, if do not demonstrated intuitively by teaching aid, for teacher Explanation and student understanding and grasp all bring very big inconvenience.But, specially suitable primary school and middle school teaching is there is no at present Or the electromagnetic field experiment teaching aid of demonstration.

The content of the invention

The purpose of this utility model is to overcome the shortcomings of that prior art exists and provides a kind of for many of teaching demonstration Function magnetoelectricity experiment teaching aid.

To achieve the above object, the utility model provides following technical scheme：A kind of multifunctional magnetic experiment teaching aid, its It is characterised by：Including a substrate, metal bell lid, flexure strip, bell clapper and electromagnetic assembly, the substrate is vertical vertical provided with one Post, metal bell lid is suspended vacantly in vertical pillars, and the flexure strip is made up of the metal strip of conductive, magnetic conduction, the elasticity Piece one end is fixed as fixing end, and the other end is free end, the free end bifurcated be the first free end and the second free end, it is described Bell clapper is fixed on the end of second free end, and the bell clapper and the second free end are set close to metal bell lid, and described first The side of free end dorsad metal bell lid is provided with the first binding post and the first contact electrode, and first binding post contacts with first Electrode is electrically connected, and first free end is flexibly resisted against on the first contact electrode, and the second wiring is additionally provided with the substrate Post, second binding post is electrically connected with flexure strip fixing end；The electromagnetic assembly includes tubular bobbin, is wound on bobbin Magnet coil and be arranged on the iron core at bobbin center, the electromagnetic assembly is arranged on flexure strip close to the one of metal bell lid Side, core ends are just to flexure strip, and the bobbin is provided with the 3rd binding post and the 4th binding post, the magnet coil two ends point It is not connected with the 3rd binding post and the 4th binding post；Also include U-shaped magnet, a pair of conductive bar, a movable rod, it is the pair of to lead Electric bar and movable rod are made up of conductiving metal strip, and the conductive bar is in ∏ shapes, and top is straight；Movable rod is circle vertical bar shape, described Side by side provided with two pairs of interface arrangments being made up of respectively a hole clipping and a neck, hole clipping and neck and conductive bar end on substrate Portion matches, and described two pairs are provided with the groove matched with U-shaped magnet between hole clipping and neck, and the is respectively equipped with described two necks Five binding posts and the 6th binding post.

Further set as the utility model, bobbin bottom two ends are respectively provided with pin, the substrate corresponding positions Install jack with the pin to match, the bobbin coordinates to constitute by pin and jack to be detachably connected with substrate.

Further set as the utility model, the U-shaped magnet by a U-shaped set of permanent magnets into.

Further set as the utility model, the U-shaped magnet is by a U-bracket and a pair of block set of permanent magnets Into the pair of block permanent magnet is fixedly installed on the relative side in two ends of U-bracket respectively, and the U-bracket is by leading Magnetic material is made.

The utility model is provided with wiring by the way that bell lid, flexure strip, bell clapper and electromagnetic assembly are set on one substrate Post, facilitate academics and students do it yourself connecting wire, power supply imparted knowledge to students or learn demonstration.

The utility model is further described below in conjunction with the accompanying drawings and the specific embodiments.

Brief description of the drawings

Fig. 1 is the dimensional structure diagram of the utility model embodiment 1；

Fig. 2 is the partial structurtes decomposing schematic representation of the utility model embodiment 1；

Fig. 3 is the dimensional structure diagram of the utility model embodiment 2；

Fig. 4 is the partial structurtes decomposing schematic representation of the utility model embodiment 2；

Fig. 5 is the dimensional structure diagram of the utility model embodiment 3；

Fig. 6 is the partial structurtes decomposing schematic representation of the utility model embodiment 3.

Embodiment

Multifunctional magnetic experiment teaching aid includes a substrate 1, metal bell lid 2, flexure strip 3, bell clapper 4 and electromagnetic assembly 5.Institute Stating the shape of substrate 1 can design as needed, as shown in Figure 1, 2, and it is in rounded-triangle shape that one end is selected in this specific embodiment 1 The other end is rectangular shape, and the substrate 1 is arranged on gable provided with a vertical pillars 6, vertical pillars 6, Metal bell lid 2 is suspended vacantly in vertical pillars 6.The flexure strip 3 is made up of the metal strip of conductive, magnetic conduction, can be selected Iron plate, described one end of flexure strip 3 is fixed as fixing end, and the other end is free end, and the fixing end of the flexure strip 3 is fixed on substrate 1 relative to the other end provided with metal bell lid 2, and the free end bifurcated is the first free end 301 and the second free end 302, institute The end that bell clapper 4 is fixed on second free end 302 is stated, the free end 302 of bell clapper 4 and second is set close to metal bell lid 2 Put, the side of first free end 301 dorsad metal bell lid 2 is provided with the first binding post 7 and the first contact electrode 8, described the One binding post 7 contacts electrode 8 with first and electrically connected, and first free end 301 is flexibly resisted against on the first contact electrode 8, The second binding post 9 is additionally provided with the substrate 1, second binding post 9 is electrically connected with the fixing end of flexure strip 3；The electromagnetism group Part 5 includes tubular bobbin 501, the magnet coil 502 being wound on bobbin 501 and the iron core for being arranged on the center of bobbin 501 503, the electromagnetic assembly 5 is arranged on flexure strip 3 close to the side of metal bell lid 2, and the end of iron core 503 is described just to flexure strip 3 Bobbin 501 be provided with the 3rd binding post 11 and the 4th binding post 12, the two ends of magnet coil 502 respectively with the 3rd binding post 11 Connected with the 4th binding post 12.The top of vertical pillars 6 is also provided with the 5th binding post electrically connected with metal bell lid 2 13。

In this specific embodiment, the bottom two ends of bobbin 501 are respectively provided with pin 504, and the corresponding positions of substrate 1 are installed There is jack 10 to match with the pin 504, the bobbin 501 coordinates composition removable with substrate 1 by pin 504 and jack 10 Connection is unloaded, different electromagnetic assemblies 5 are so convenient for changing.

In order to increase in the function of this multifunctional magnetic experiment teaching aid, this specific embodiment 2, as shown in Figure 3,4, also enter one Step includes U-shaped magnet, a pair of conductive bar 15, a movable rod 16, and the U-shaped magnet is made up of a U-shaped permanent magnet 14, described A pair of conductive bar 15 and movable rod 16 are made up of conductiving metal strip, such as copper material, and the conductive bar 15 is in ∏ shapes, and top is straight；It is living Dynamic rod 16 is what is be made up of respectively a hole clipping 101 and a neck 102 provided with two Duis side by side on circle vertical bar shape, the substrate 1 Interface arrangment, hole clipping 101 and neck 102 match with the end of conductive bar 15, are provided between two pairs of hole clippings 101 and neck 102 The 5th binding post 17 and the 6th binding post are respectively equipped with the groove 103 matched with U-shaped permanent magnet 14, described two necks 102 18.In use, two conductive bars 15 are respectively inserted in two pairs of hole clippings 101 and neck 102 and are arranged side by side on substrate 1, two One end of conductive bar 15 is connected with the 5th binding post 17 and the 6th binding post 18 respectively, and the U-shaped side of permanent magnet 14 is embedded in groove 103, the two ends of movable rod 16 ride on conductive bar 15 and in the magnetic field in U-shaped permanent magnet 14, and with being connected on the 5th respectively Electric current is flowed through in the circuit of electric power generating composition closing on the binding post 18 of binding post 17 and the 6th, movable rod 16, in the work of magnetic field force Under, movable rod 16 can be rolled to direction, vivo active force of the magnetic field demonstration to electrical conductor.

Magnetic field can also be used in other structures, such as this specific embodiment 3, as shown in Figure 5,6, two pairs of hole clippings 101 It can also be between neck 102 provided with the groove 103 matched with U-shaped magnet 19, the be respectively equipped with described two necks 102 Five binding posts 17 and the 6th binding post 18, and the U-shaped magnet 19 is by a U-bracket 1901 and a pair of block permanent magnets 1902 Composition, the pair of block permanent magnet 1902 is fixedly installed on the relative side in 1,901 two ends of U-bracket respectively, U-shaped magnetic The side of iron 19 is arranged on groove 103 and fixed, and the U-bracket 1901 is made up of permeability magnetic material.

Claims

1. a kind of multifunctional magnetic experiment teaching aid, it is characterised in that：Including a substrate, metal bell lid, flexure strip, bell clapper and electricity Magnetic assembly, the substrate is suspended vacantly in vertical pillars provided with a vertical pillars, metal bell lid, and the flexure strip is by leading Electricity, the metal strip of magnetic conduction are constituted, and described flexure strip one end is fixed as fixing end, and the other end is free end, the free end point Pitch as the first free end and the second free end, the bell clapper is fixed on the end of second free end, the bell clapper and second Free end is set close to metal bell lid, first free end dorsad metal bell lid side is provided with the first binding post and first connects Touched electrode, first binding post contacts electrode electrical connection with first, and first free end is flexibly resisted against the first contact On electrode, the second binding post is additionally provided with the substrate, second binding post is electrically connected with flexure strip fixing end；The electromagnetism Component includes tubular bobbin, the magnet coil being wound on bobbin and the iron core for being arranged on bobbin center, the electromagnetism group Part is arranged on flexure strip close to the side of metal bell lid, and core ends are just to flexure strip, and the bobbin is provided with the 3rd binding post With the 4th binding post, the magnet coil two ends are connected with the 3rd binding post and the 4th binding post respectively；Also include U-shaped magnet, A pair of conductive bar, a movable rod, the pair of conductive bar and movable rod are made up of conductiving metal strip, and the conductive bar is in ∏ Shape, top is straight；Movable rod is side by side provided with two pairs respectively by a hole clipping and a neck structure on circle vertical bar shape, the substrate Into interface arrangment, hole clipping and neck match with conductive bar end, and described two pairs are provided with and U-shaped magnet phase between hole clipping and neck The 5th binding post and the 6th binding post are respectively equipped with the groove matched somebody with somebody, described two necks.

2. multifunctional magnetic experiment teaching aid according to claim 1, it is characterised in that：Bobbin bottom two ends are respectively set There is pin, the substrate relevant position matches provided with jack with the pin, the bobbin coordinates structure by pin and jack It is detachably connected into substrate.

3. multifunctional magnetic experiment teaching aid according to claim 1, it is characterised in that：The U-shaped magnet by a U-shaped forever Magnet is constituted.

4. multifunctional magnetic experiment teaching aid according to claim 1, it is characterised in that：The U-shaped magnet is by a U-shaped branch Frame and a pair of block set of permanent magnets are into relative one in two ends of U-bracket is fixedly installed in the pair of block permanent magnet respectively On side, the U-bracket is made up of permeability magnetic material.