CN210136632U - Ampere force demonstration teaching device - Google Patents
Ampere force demonstration teaching device Download PDFInfo
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- CN210136632U CN210136632U CN201920256568.8U CN201920256568U CN210136632U CN 210136632 U CN210136632 U CN 210136632U CN 201920256568 U CN201920256568 U CN 201920256568U CN 210136632 U CN210136632 U CN 210136632U
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- battery
- powerful magnet
- negative pole
- button cell
- magnet
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Abstract
The utility model discloses an ampere force demonstration teaching device, including the adjustable shell that is equipped with button cell, adjustable shell includes battery fixing cylinder and battery regulation section of thick bamboo, battery fixing cylinder's outer peripheral face is provided with the external screw thread, battery regulation cylinder's inner chamber is provided with the internal thread with external screw thread matched with, button cell establishes ties and sets up the inner chamber at battery regulation section of thick bamboo and battery fixing cylinder, battery fixing cylinder's bottom joint has negative pole powerful magnet, the top of negative pole powerful magnet meets with the button cell's of below negative pole, the top joint that battery was adjusted a section of thick bamboo has anodal powerful magnet, anodal powerful magnet's bottom meets with the button cell's of the top anodal, the activity is provided with around the rotatory hard wire of copper of adjustable casing between anodal powerful magnet and the negative pole powerful magnet. The utility model is not only simple in structure and the equipment of being convenient for, easy operation has avoided receiving the deviation that the influence of manual operation produced moreover, can understand, observe the law that the circular telegram wire received ampere force directly perceivedly.
Description
Technical Field
The utility model relates to a physical experiment technical field especially indicates an ampere force demonstration teaching device.
Background
The Ampere force (Ampere's force) is the acting force of an electrified lead in a magnetic field, which is determined by French physicist A.ampere through experiments, wherein the Ampere force of the lead is F = IBLsin α when a straight lead with current intensity of I and length of L is placed in a uniform external magnetic field with magnetic induction intensity of B, α is an included angle between the current direction and the B direction in the lead, the units of F, L, I and B are N, m, A and T, the direction of the Ampere force of the lead is vertical to a plane determined by the electrified lead and the direction of the magnetic field, and the directions of I, B and F are determined by left-hand rules.
Therefore, the ampere force in the physics teaching is a very important teaching course, and in order to enable students to thoroughly understand and master the principle and the application method of the ampere force, the demonstration of the ampere force through corresponding physics experiments is required. However, the existing ampere force experiment teaching tool is inconvenient to operate, can generate serious deviation under the influence of manual operation, and even cannot observe corresponding experiment phenomena. In addition, the existing experimental tools cannot exactly know the action phenomenon of the ampere force, are lack of interestingness, are mostly demonstrated through the tiny swing of the metal rod, are difficult to arouse the learning interest of students, and cannot stimulate the power of the students for research and exploration.
SUMMERY OF THE UTILITY MODEL
Not enough to among the above-mentioned background art, the utility model provides an ampere power demonstration teaching device has solved the technical problem that current ampere power experiment instrument operation is inconvenient, experimental phenomenon is not obvious and can not arouse student's interest in learning.
The technical scheme of the utility model is realized like this: the utility model provides an ampere force demonstration teaching device, is including the adjustable shell that is equipped with button cell, and adjustable shell includes battery fixing cylinder and battery regulation section of thick bamboo, and the outer peripheral face of battery fixing cylinder is provided with the external screw thread, and the inner chamber of battery regulation section of thick bamboo is provided with the internal thread with external screw thread matched with. Through adjusting the screw-thread fit position of a battery fixing barrel and a battery adjusting barrel, the inner chamber length of the adjustable shell can be conveniently adjusted, so that the combination requirements of different button batteries are met, and different voltages and currents can be provided. The button cell establishes ties and sets up the inner chamber at a battery regulation section of thick bamboo and a battery fixing section of thick bamboo, and the bottom joint of a battery fixing section of thick bamboo has negative pole powerful magnet, and the top of negative pole powerful magnet meets with the negative pole of the button cell of below, and the top joint of a battery regulation section of thick bamboo has anodal powerful magnet, and the bottom of anodal powerful magnet meets with the anodal of the button cell of top, and the activity is provided with around the rotatory hard wire of copper of adjustable casing between anodal powerful magnet and the negative pole powerful magnet. Various combinations of button cell can provide different electric currents for the hard wire of copper, and positive pole powerful magnet and negative pole powerful magnet can provide the electric field for the hard wire of copper simultaneously, and the hard wire of copper is the circular telegram conductor, just can rotate around adjustable casing under the effect of electric field.
Furthermore, a central through hole is formed in the center of the positive pole strong magnet, the copper hard wire is connected with the positive pole of the button battery through the central through hole, the central through hole can guarantee the reliability of the power-on of the copper hard wire and the button battery, the resistance is reduced, and the rotation stability of the copper hard wire is guaranteed.
Furthermore, the copper hard wire comprises a circular ring with an opening, the opening is connected with a rotary ring in rotary fit with the negative pole strong magnet, and the rotary ring can ensure the stability of the copper hard wire in fit with the negative pole strong magnet. The inner side of the circular ring is provided with a rotating column facing to the center of the circular ring, the rotating column is inserted into the central through hole and movably connected with the anode of the button cell, and the axis of the rotating column vertically corresponds to the axis of the rotary ring.
Further, a cushion block switch is arranged, the cushion block switch is placed between the inner side of the top of the circular ring and the positive pole strong magnet in the non-working state, and the thickness of the cushion block switch is larger than the distance between the rotary column and the button battery at the top. When dynamic demonstration is needed, the cushion block switch is pulled out, the copper hard lead is connected with the anode and the cathode of the button cell after the cushion block switch is pulled out, and at the moment, current passes through the copper hard lead, namely the copper hard lead can rotate under the influence of ampere force in an electric field.
Furthermore, a fixed base is arranged at the lower end part of the negative pole strong magnet, and a clamping groove for clamping the negative pole strong magnet is formed above the fixed base.
The utility model is not only simple in structure and the equipment of being convenient for, easy operation has avoided receiving the deviation that the influence of manual operation produced moreover, can understand, observe the law of circular telegram wire atress directly perceivedly. The utility model discloses can change the hard wire of copper of different shapes, can also observe the solid of revolution of different shapes when rotatory, when demonstrating physical theory knowledge, can demonstrate the solid of revolution in the mathematical knowledge in step. Additionally, the utility model discloses have the interest, not only can arouse student's manual operation interest, but also can arouse the power that the student bore and researched.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic structural diagram of the hard wire of FIG. 1;
fig. 3 is a top view of fig. 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
The button cell 1 is connected in series with the inner cavities of the cell adjusting cylinder 3 and the cell fixing cylinder 2, the bottom of the cell fixing cylinder 2 is clamped with a negative pole strong magnet 4, and the top of the negative pole strong magnet 4 is connected with the negative pole of the button cell 1 at the bottom. The top of the battery adjusting cylinder 3 is clamped with a positive pole strong magnet 5, and the bottom of the positive pole strong magnet 5 is connected with the positive pole of the button battery 1 at the top. A copper hard wire 6 rotating around the adjustable shell is movably arranged between the positive pole strong magnet 5 and the negative pole strong magnet 4. Various quantity combinations of the button batteries 1 can provide different currents for the copper hard wires 6, meanwhile, the positive strong magnets 5 and the negative strong magnets 4 can provide electric fields for the copper hard wires, and the copper hard wires 6 are electrified conductors and can rotate around the adjustable shell under the action of the electric fields. Along with the adjustment of the number of the button batteries 1, the magnitude of the ampere force under different current intensities can be conveniently observed, and the magnitude of the ampere force can be determined through the rotating speed of the copper hard lead 6.
Furthermore, a central through hole 5-1 is formed in the center of the positive pole strong magnet 5, and the copper hard lead 6 is connected with the positive pole of the button battery 1 through the central through hole 5-1. The central through hole 5-1 can ensure the reliability of the electrification of the copper hard wire 6 and the button cell 1, thereby not only reducing the resistance, but also ensuring the stability of the rotation of the copper hard wire 6.
Further, as shown in fig. 2 and 3, the copper hard wire 6 comprises a circular ring 6-1 with an opening, the opening is connected with a rotating ring 6-2 in rotating fit with the negative pole strong magnet 4, and the rotating ring 6-2 can ensure the stability of the copper hard wire 6 in fitting with the negative pole strong magnet 4. The inner side of the circular ring 6-1 is provided with a rotating column 6-3 facing to the center of the ring, and the rotating column 6-3 is inserted in the central through hole 5-1 and is movably connected with the anode of the button cell 1. The axis of the rotating column 6-3 is vertically corresponding to the axis of the revolving ring 6-2, so that the stability of the rotating process is further ensured. In addition, the embodiment can replace the hard copper wires in different shapes for demonstration, can simultaneously observe the revolving bodies in different shapes, is attractive and beautiful, and can arouse the learning interest of students.
The other structure of this embodiment is the same as embodiment 1.
The other structure of this embodiment is the same as embodiment 1.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The ampere force demonstration teaching device is characterized in that: the adjustable shell comprises a battery fixing barrel (2) and a battery adjusting barrel (3), external threads are arranged on the outer peripheral face of the battery fixing barrel (2), an inner cavity of the battery adjusting barrel (3) is provided with internal threads matched with the external threads, the button battery (1) is serially connected with the inner cavity of the battery adjusting barrel (3) and the inner cavity of the battery fixing barrel (2), a negative pole powerful magnet (4) is connected to the bottom of the battery fixing barrel (2), the top of the negative pole powerful magnet (4) is connected with the negative pole of the button battery (1) at the bottom, a positive pole powerful magnet (5) is connected to the top of the battery adjusting barrel (3), the bottom of the positive pole powerful magnet (5) is connected with the positive pole of the button battery (1) at the top, and a copper hard lead (6) rotating around an adjustable shell is movably arranged between the positive pole powerful magnet (5) and the negative pole powerful magnet (4).
2. The ampere-force demonstration teaching device according to claim 1, wherein: the center of the positive pole strong magnet (5) is provided with a central through hole (5-1), and the copper hard wire (6) is connected with the positive pole of the button battery (1) through the central through hole (5-1).
3. The ampere-force demonstration teaching device according to claim 2, wherein: the copper hard wire (6) comprises a circular ring (6-1) with an opening, the opening is connected with a rotary ring (6-2) matched with the negative strong magnet (4) in a rotary mode, a rotary column (6-3) facing to the center of the circular ring is arranged on the inner side of the circular ring (6-1), the rotary column (6-3) is inserted into a central through hole (5-1) and movably connected with the anode of the button cell (1), and the axis of the rotary column (6-3) corresponds to the axis of the rotary ring (6-2) up and down.
4. The ampere-force demonstration teaching device according to claim 3, wherein: the button cell is provided with a cushion block switch (7), the cushion block switch (7) is placed between the inner side of the top of the circular ring (6-1) and the positive pole strong magnet (5) in a non-working state, and the thickness of the cushion block switch (7) is larger than the distance between the rotating column (6-3) and the uppermost button cell (1).
5. An ampere-force demonstration teaching device according to any one of claims 1-4 wherein: the lower tip of negative pole powerful magnet (4) is provided with unable adjustment base (8), sets up the draw-in groove of joint negative pole powerful magnet (4) above unable adjustment base (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920256568.8U CN210136632U (en) | 2019-02-28 | 2019-02-28 | Ampere force demonstration teaching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920256568.8U CN210136632U (en) | 2019-02-28 | 2019-02-28 | Ampere force demonstration teaching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210136632U true CN210136632U (en) | 2020-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920256568.8U Expired - Fee Related CN210136632U (en) | 2019-02-28 | 2019-02-28 | Ampere force demonstration teaching device |
Country Status (1)
| Country | Link |
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| CN (1) | CN210136632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958314A (en) * | 2021-02-19 | 2021-06-15 | 宿州市尖端木业有限公司 | Flame-retardant material spraying device for wood manufacturing |
-
2019
- 2019-02-28 CN CN201920256568.8U patent/CN210136632U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958314A (en) * | 2021-02-19 | 2021-06-15 | 宿州市尖端木业有限公司 | Flame-retardant material spraying device for wood manufacturing |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200310 |
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| CF01 | Termination of patent right due to non-payment of annual fee |