CN202142225U - Demonstration instrument for interaction between currents of wires - Google Patents
Demonstration instrument for interaction between currents of wires Download PDFInfo
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- CN202142225U CN202142225U CN201120236485U CN201120236485U CN202142225U CN 202142225 U CN202142225 U CN 202142225U CN 201120236485 U CN201120236485 U CN 201120236485U CN 201120236485 U CN201120236485 U CN 201120236485U CN 202142225 U CN202142225 U CN 202142225U
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Abstract
The utility model belongs to the field of physics, specifically relating to a demonstration instrument for interaction between currents of wires. The demonstration instrument is characterized in that: a direct-current power supply is arranged in a base; the positive pole of the direct-current power supply is connected with a power supply positive pole output terminal through a button switch; the negative pole of the direct-current power supply is connected with a power supply negative pole output terminal; the base and the top end of a support are correspondingly provided with two pairs of parallel axle seats comprising four terminals; the top end and the lower end of a rotation wire are respectively rotatably connected with two pairs of axle seats; two ends of a solenoid connecting wire or a straight connecting wire can be movably connected with the same pair of terminals respectively and can be parallel to the rotation wire; and corner connecting ends for the two ends of the solenoid connecting wire and the straight connecting wire are respectively are wound to be a helical-structure. The demonstration instrument for interaction between currents of wires provided by the utility model can a phenomenon for demonstrate gravitation and repulsion effect that two rotation wires pass through parallel wires in the same direction and reverse direction, and a phenomenon for strong interaction, weak interaction, negligible interaction of the third wire on the two rotation wires.
Description
Technical field
The utility model belongs to the physics field, relates to a kind of physical phenomenon ocular demonstration technology that is applied to experimental physics, particularly a kind of current in wire interaction demonstrator and demenstration method.
Background technology
When passing through electric current in the lead, around it, will produce magnetic field; When the lead through electric current is in the magnetic field, will receive the effect of power; When two (sections) or many (section) leads during through electric current, between them can the effect of mutual power and the effect of performance force action take place through magnetic field, produce the phenomenons such as change, deformation, rotation of motion.Like publication number: the CN2755703 title: " straight line current interaction demonstrator ", two of said enameled wire coileds be square coil independently; The enameled wire top of square coil links to each other with binding post, and its end links to each other with telegraph key; The top of the enameled wire of square coil connects binding post, and its end links to each other with telegraph key with binding post.This straight line current interaction straight lead interphase interaction of demonstrator power is strong, and experimental phenomena is very obvious, and teaching efficiency is very desirable.Publication number: CN201655108U and for example, title: " AC and DC carrying flow direct conducting wire interaction demonstrator ", form by reversing switch, fixing metal handful, square coil, metal tube, translucent cover, base, binding post and column; After the mode of contact of adopt rolling was demonstrated that straight lead is logical and gone up direct current or alternating current, metal tube rolled on two fixing metal rods, thereby explained and have magnetic field around it and interact; Visual in image; Easy and simple to handle, reliable and stable, cost is not high yet.All adopted square coil in the above-mentioned technology, this also is the member commonly used of such demonstrator.In order to make the demonstration better effects if, general some environment of change, the parameter of adopting waits the different phenomenons that obtain obvious contrast.
The utility model content
One of purpose of the utility model is to provide a kind of current in wire interaction demonstrator, comprises that two parallel rotation leads, a solenoid connect lead and the direct-connected lead that connects.
The technical scheme of one of purpose of the utility model: it comprises base, support and connection lead, and support is connected with base, and a direct supply is installed in base, and the positive pole of direct supply is connected with the positive source output wiring terminal through a pushbutton switch; The negative pole of direct supply is connected with the power cathode output wiring terminal; Base is provided with two binding posts, and the top correspondence of support is provided with two binding posts, and four binding posts are formed two pairs of parallel axle beds, and two two ends up and down of rotating lead are rotationally connected with two pairs of axle beds respectively; The two ends that solenoid connects lead flexibly connect with the pairs of posts on a pair of axle bed, or direct-connectedly connect the two ends of lead and the same pairs of posts flexible connection on the described a pair of axle bed; Solenoid connects the center line of lead or direct-connected to connect lead parallel with two rotation leads.
The part of the force lead of rotation lead and the rotation axis part lead at its two ends be not on same straight line; The part of the force lead is a straight line and parallel with the rotation axis part lead at two ends; Lead two ends, part of the force are connected with rotation axis part lead through the coupling part lead respectively; Rotation axis part lead and axle bed are rotationally connected, and part of the force lead, coupling part lead and rotation axis part lead are that integral body or segmentation are connected.
Corner link and the direct-connected corner link that connects the lead two ends that solenoid connects the lead two ends turn to helical structure respectively.
As far as the demonstration instrument for physical phenomenon device, require to adopt simple instrument physical essence to be described through significantly phenomenon directly perceived.Interact in order to demonstrate current in wire; Can adopt two parallel rotation leads, when they during through identical or current in opposite, or in other external magnetic field, will receive the effect of power; And their fixed rotating shaft has the effect of moment relatively; Under this moment loading, can rotate around the shaft, according to their rotation direction and speed demonstrate they the situation of stressed and moment, interact thereby demonstrate current in wire.
Description of drawings
Fig. 1, the utility model embodiment 1 current in wire interaction demonstrator one-piece construction figure.
Embodiment
In conjunction with accompanying drawing embodiment 1 is described further:
It comprises base 12, support 13 and connect lead that support 13 is connected with base 12, it is characterized in that: a direct supply is installed in base 12, and the positive pole of direct supply is connected with positive source output wiring terminal 2 through a pushbutton switch 1; The negative pole of direct supply is connected with power cathode output wiring terminal 3; Base 12 is provided with two binding posts 4,5; The top correspondence of support 13 is provided with two binding posts 6,7; Four binding posts 4,6,5,7 are formed two pairs of parallel axle beds; Two main parts of rotating leads 8,9 be "] " the type lead, two "] " two ends up and down of type rotation lead 8,9 are rotationally connected with two pairs of axle beds respectively; Solenoid connects the two ends of lead 10 and the pairs of posts 5,7 on a pair of axle bed flexibly connects, or direct-connected two ends and the same pairs of posts on the described a pair of axle bed 5,7 that connects lead 11 flexibly connects; The center line or direct-connected that solenoid connects lead 10 connects lead 11 and two "] " type rotation lead 8,9 is parallel.
Two "] " type rotate lead 8,9 the rotation axis part lead at part of the force lead and its two ends not on same straight line; The part of the force lead is a straight lead and parallel with the rotation axis part lead at two ends; Lead two ends, part of the force are connected with rotation axis part lead through the coupling part lead respectively; Rotation axis part lead and axle bed are rotationally connected, and part of the force lead, coupling part lead and rotation axis part lead are that integral body or segmentation are connected.
Corner link and the direct-connected corner link that connects lead 11 two ends that solenoid connects lead 10 two ends turn to spiral-shaped respectively.Can and twist two and bring in its locus of flexible change through stretching, thereby obtain the interactional multiple condition of demonstration current in wire.
Demenstration method is following:
1. the demenstration method of the repulsion effect phenomenon of parallel wire when the current in opposite: demonstrate two "] " interaction situation during type rotation lead direction of passage electric current; Link to each other binding post 2 with binding post 4 with connecting lead; Binding post 3 links to each other with binding post 5, and binding post 6 links to each other with binding post 7.Press the button 1, two on switch "] " type rotates lead 8,9 respectively to turning left and right, and velocity of rotation equates.This explanation this moment two "] " the type interaction force that rotates lead 8,9 is repulsion, equal and opposite in direction;
When 2. the 3rd straight parallel connects lead through current in opposite to two in the same way electric current rotate lead and pretend the demenstration method that firmly influences phenomenon: link to each other binding post 2 with binding post 4, binding post 5 with connecting lead; Binding post 6 links to each other with binding post 7; Link to each other binding post 3 with binding post 7 with the direct-connected lead 11 that connects again; And make direct-connected connect lead 11, two "] " type rotates lead 8,9 basic coplanes, direct-connectedly connects lead 11 and "] " distance between the type rotation lead 9 is about "] " and type rotation lead 8, the distance between 9 1/5～1/3.Pressing the button switch 1, two "] " type rotates lead 8,9 and all turns left, but the velocity of rotation of rotating lead 9 is greater than the velocity of rotation of rotating lead 8.This explanation this moment "] " type rotate lead 8 receive direct-connected connect lead 11 to its acting force left greater than receiving "] " type rotates lead 9 to its acting force to the right, what obtain after the stack reducing makes a concerted effort left; "] " type rotates lead 9 and receives direct-connected connect lead 11 and "] " to rotate lead 8 all be acting force left to it to type, what obtain after the stack increasing makes a concerted effort left.The direct-connected lead 11 pairs two "] that connects " to rotate the acting force of lead 8,9 very strong for type, very big to their influence.
When 3. the 3rd straight parallel connects lead through current in opposite to two in the same way electric current rotate the demenstration method that the lead weak force influence phenomenon: link to each other binding post 2 with binding post 4, binding post 5 with the connection lead; Binding post 6 links to each other with binding post 7; Link to each other binding post 3 with binding post 7 with the direct-connected lead 11 that connects again; And make direct-connected connect lead 11, two "] " type rotates lead 8,9 basic coplanes, direct-connectedly connects lead 11 and "] " distance between the type rotation lead 9 is about two "] " and type rotation lead 8, the distance between 9 2/3.Press the button switch 1, two "] " type rotate lead 8,9 respectively to the right, turn left movingly, but the velocity of rotation of rotating lead 9 is a bit larger tham the velocity of rotation of rotating lead 8.This explanation this moment "] " type rotate lead 8 receive direct-connected connect lead 11 to its acting force left less than receiving "] " type rotates lead 9 to its acting force to the right, what reduced slightly after the stack makes a concerted effort to the right; "] " type rotates lead 9 and receives direct-connected connect lead 11 and "] " to rotate lead 8 all be acting force left to it to type, what increased slightly after the stack makes a concerted effort left.The direct-connected lead 11 pairs two "] that connects " type rotates the effect that lead 8,9 has more weak acting force, and is less to their influence.
When 4. the 3rd straight parallel connects lead through current in opposite to two in the same way electric current rotate lead and do not have the demenstration method that acting force influence phenomenon: link to each other binding post 2 with binding post 4, binding post 5 with the connection lead; Binding post 6 links to each other with binding post 7; Link to each other binding post 3 with binding post 7 with the direct-connected lead 11 that connects again; And make direct-connected connect lead 11, two "] " type rotates lead 8,9 basic coplanes, direct-connectedly connects lead 11 and "] " distance between the type rotation lead 9 is greater than two "] " type rotation lead 8, the distance between 9.Press the button switch 1, two "] " type rotate lead 8,9 respectively to the right, turn left movingly, but it is suitable with the velocity of rotation of rotating lead 8 to rotate the velocity of rotation of lead 9.This explanation this moment is direct-connected to connect lead 11 pairs two "] " to rotate the effect of lead 8,9 very little for type, can think not influence, has only two "] " type rotates lead 8, the attractive interaction effect between 9; The direct-connected lead 11 pairs two "] that connects " type rotates the effect that lead 8,9 does not have acting force basically, can ignore their influence.
The demenstration method of the graviational interaction phenomenon when 5. parallel wire is through the equidirectional electric current; Rotate the phenomenon demenstration method that lead does not have the acting force influence to two when promptly the 3rd solenoid lead is through current in opposite: link to each other binding post 2 with binding post 4, binding post 5 with connecting lead; Binding post 6 links to each other with binding post 7; Connect lead 10 with solenoid again and link to each other binding post 3 with binding post 7, and make solenoid connection lead 10, two "] " type rotation lead 8,9 basic coplanes.No matter solenoid connects lead 10 and "] " how many type distances of rotating between the lead 9 be, presses the button switch 1, two "] " type rotate lead 8,9 respectively to the right, turn left movingly, but it is equal with the velocity of rotation of rotation lead 8 to rotate the velocity of rotation of lead 9.This explanation solenoid connects lead 10 pairs two "] " type rotates the effect that lead 8,9 does not have acting force; To their not influence; Having only two "] " type rotates lead 8, the attractive interaction effect between 9, the graviational interaction phenomenon when promptly having demonstrated parallel wire through the equidirectional electric current.
Claims (2)
1. current in wire interaction demonstrator; It comprises base (12), support (13) and connects lead; Support (13) is connected with base (12); It is characterized in that: a direct supply is installed in base (12), and the positive pole of direct supply is connected with positive source output wiring terminal (2) through a pushbutton switch (1); The negative pole of direct supply is connected with power cathode output wiring terminal (3); Base (12) is provided with two binding posts (4,5); The top correspondence of support (13) is provided with two binding posts (6,7); Four binding posts (4,6,5,7) are formed two pairs of parallel axle beds, and two two ends up and down of rotating lead (8,9) are rotationally connected with two pairs of axle beds respectively; The two ends that solenoid connects lead (10) flexibly connect with the pairs of posts on a pair of axle bed (5,7), or direct-connectedly connect the two ends of lead (11) and the flexible connection of the same pairs of posts (5,7) on the described a pair of axle bed; Solenoid connects the center line of lead (10) or direct-connected to connect lead (11) parallel with two rotation leads (8,9).
2. current in wire interaction demonstrator according to claim 1 is characterized in that: corner link and the direct-connected corner link that connects lead (11) two ends that solenoid connects lead (10) two ends turn to helical structure respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120236485U CN202142225U (en) | 2011-07-07 | 2011-07-07 | Demonstration instrument for interaction between currents of wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120236485U CN202142225U (en) | 2011-07-07 | 2011-07-07 | Demonstration instrument for interaction between currents of wires |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202142225U true CN202142225U (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120236485U Expired - Fee Related CN202142225U (en) | 2011-07-07 | 2011-07-07 | Demonstration instrument for interaction between currents of wires |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202142225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222440A (en) * | 2011-07-07 | 2011-10-19 | 东华理工大学 | Instrument and method for demonstrating interaction of current of conducting wires |
-
2011
- 2011-07-07 CN CN201120236485U patent/CN202142225U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222440A (en) * | 2011-07-07 | 2011-10-19 | 东华理工大学 | Instrument and method for demonstrating interaction of current of conducting wires |
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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: 20120208 Termination date: 20130707 |