CN220020451U - Hand-operated AC/DC generator demonstration device - Google Patents
Hand-operated AC/DC generator demonstration device Download PDFInfo
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- CN220020451U CN220020451U CN202321714671.5U CN202321714671U CN220020451U CN 220020451 U CN220020451 U CN 220020451U CN 202321714671 U CN202321714671 U CN 202321714671U CN 220020451 U CN220020451 U CN 220020451U
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- generator
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- carbon brush
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- 241000283690 Bos taurus Species 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 abstract description 37
- 238000000034 method Methods 0.000 abstract description 14
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- 230000006698 induction Effects 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model provides a hand-operated AC/DC generator demonstration device which comprises an AC/DC generator, a hand-operated device, a bidirectional knife switch and a light-emitting component, wherein the AC/DC generator, the hand-operated device, the bidirectional knife switch and the light-emitting component are arranged on a carrying platform, the hand-operated device comprises a hand-operated handle, a driving wheel and a driving belt, the hand-operated handle is arranged on the driving wheel, the driving wheel is in transmission connection with the AC/DC generator through the driving belt, the bidirectional knife switch comprises a first bidirectional knife switch and a second bidirectional knife switch, and the AC/DC generator is electrically connected with the first bidirectional knife switch, the second bidirectional knife switch and the light-emitting component in sequence. The design of the utility model ensures that the demonstration process is more interesting and searchable, the demonstration process is clearer, the demonstration result is more accurate, and students can generate interests and fully understand the working principle of the AC/DC generator.
Description
Technical Field
The utility model relates to the technical field of AC/DC generator experiments, in particular to a hand-operated AC/DC generator demonstration device.
Background
In the teaching of ac/dc generators, students have difficulty in understanding the construction and principle of ac/dc generators and dc generators, and particularly in understanding the law of current direction change. When the principle of the generator is demonstrated by using the model of the existing generator, students cannot see the current and change the current direction, can only listen to the teaching of teachers, can not form perceptual knowledge by imagination and can not form a flat teaching effect.
The traditional hand-operated AC/DC generator demonstration device has the following defects: the driving belt is a rubber ring, and is easy to age and break after long-term use; usually, only one bulb is provided, and the phenomenon change during alternating current and direct current can not be intuitively seen; the carbon brush used needs to be slidably adjusted to achieve AC/DC characteristics, and the surface of the rotating shaft of the generator is easy to wear after long-term use and is inconvenient to replace. The defects cause that the traditional AC/DC generator demonstration device is high in damage possibility in the demonstration process, and the problems that the demonstration process is unclear, the demonstration result is inaccurate and students cannot fully understand are generated.
Disclosure of Invention
The utility model aims to provide a hand-operated alternating current-direct current generator demonstration device so as to solve the problems in the background technology.
The utility model is realized by the following technical scheme: including setting up AC/DC generator, hand device, two-way knife switch, the luminous subassembly on holding the thing bench, hand device includes hand handle, drive wheel and drive belt, hand handle sets up on the drive wheel, the drive wheel pass through the drive belt with AC/DC generator transmission links to each other, two-way knife switch includes first two-way knife switch and second two-way knife switch, AC/DC generator with first two-way knife switch the two-way knife switch of second the luminous subassembly is the electrical property links to each other in proper order.
Preferably, the ac/dc generator includes an armature, a magnet, a rotating shaft, a collecting ring and carbon brushes, the driving wheel is in transmission connection with the rotating shaft through a driving belt, the armature is rotatably mounted on the rotating shaft, the armature is suspended in a pole shoe of the magnet, the carbon brushes are mounted on two sides of the collecting ring, and carbon brush heads of the carbon brushes are lightly touched on the surface of the collecting ring.
Preferably, the carbon brush is detachably connected with the carbon brush head.
Preferably, the drive belt is an industrial belt or a bovine belt.
Preferably, the first bidirectional knife switch comprises a first bidirectional knife, a light emitting diode contact and a small bulb contact, the second bidirectional knife switch comprises a second bidirectional knife, an alternating current contact and a direct current contact, the first bidirectional knife switch controls switching of the light emitting component, and the second bidirectional knife switch controls switching of alternating current/direct current generated by the alternating current/direct current generator.
Preferably, the light emitting assembly comprises a light emitting diode and a small bulb.
Compared with the prior art, the utility model has the following beneficial effects:
according to the hand-operated AC/DC generator demonstration device provided by the utility model, through the design of the bidirectional knife switch, the light-emitting component and the AC/DC can be freely switched in the demonstration process, the demonstration process is more interesting and searchable due to the design of the light-emitting component, the demonstration process is clearer, the demonstration result is more accurate, students can generate interests and fully understand the working principle of the AC/DC generator.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only preferred embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a hand ac/dc generator demonstration device provided by the utility model.
Reference numerals: 1. a carrying platform; 2. a first bidirectional knife switch; 3. a second bidirectional knife switch; 4. a driving wheel; 5. a hand crank; 6. a drive belt; 7. a red light emitting diode; 8. a small bulb; 9. a magnet; 10. an armature; 11. a rotating shaft; 12. a carbon brush head; 13. a collecting ring; 14. a blue light emitting diode; 15. pole shoes; 16. a light emitting diode contact; 17. a small bulb contact; 18. an alternating current contact; 19. a DC contact; 20. a circuit board; 21. a carbon brush; 22. a first bi-directional blade, 23, a second bi-directional blade.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, exemplary embodiments according to the present utility model will be described in detail with reference to the accompanying drawings. It should be apparent that the described embodiments are only some embodiments of the present utility model and not all embodiments of the present utility model, and it should be understood that the present utility model is not limited by the example embodiments described herein. Based on the embodiments of the utility model described in the present application, all other embodiments that a person skilled in the art would have without inventive effort shall fall within the scope of the utility model.
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.
It should be understood that the present utility model may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.
In order to provide a thorough understanding of the present utility model, detailed structures will be presented in the following description in order to illustrate the technical solutions presented by the present utility model. Alternative embodiments of the utility model are described in detail below, however, the utility model may have other implementations in addition to these detailed descriptions.
Examples
Referring to fig. 1, a hand ac/dc generator presentation device, including install ac/dc generator, hand device, two-way knife switch, light-emitting component on holding thing platform 1, be convenient for the demonstration personnel withdraw presentation device or shift to each demonstration classroom, hand device includes hand handle 5, drive wheel 4 and drive belt 6, hand device pass through drive belt 6 with ac/dc generator links to each other, in the demonstration process, the demonstration personnel rotates drive wheel 4 through cylindrical hand handle 5 to make drive belt 6 on drive wheel 4 drive ac/dc generator generate electricity, ac/dc generator with first two-way knife switch 2, first two-way knife switch 3 the light-emitting component wire links to each other, and ac/dc generator is the light-emitting component power supply through holding the wire that thing platform 1 bottom is connected, so as to observe the change at the light-emitting component of demonstration in-process, two-way knife switch is connected between ac/dc generator and light-emitting component through holding the wire of thing platform 1 bottom, can exchange, direct current and light-emitting component free switch.
Further, the ac/dc generator includes an armature 10, a magnet 9, a rotating shaft 11, a collecting ring 13 and a carbon brush head 12, the driving belt 6 of the hand shaking device is connected with the rotating shaft 11 of the ac/dc generator, the armature 10 is suspended in the pole shoe 15 of the magnet 9, the carbon brush head 12 is mounted on two sides of the collecting ring 13, in the demonstration process, the driving belt 6 drives the rotating shaft 11 of the ac/dc generator to rotate under the transmission action of the driving wheel 4, so that the armature 10 wound with a copper coil on the rotating shaft 11 rotates in a suspended manner in a magnetic field inside the pole shoe 15 and cuts a magnetic induction line, and the ac/dc generator can generate ac or dc according to the reversal of the rotation direction of the armature 10.
Further, the carbon brush head 12 is detachably connected with the carbon brush 21, the carbon brush 21 is fixedly installed on two sides of the collecting ring 13, the surface of the carbon brush head 12 is in contact with the collecting ring 13, the alternating current-direct current characteristics do not need to be movably regulated, the replacement period of the carbon brush head 12 is relatively short in the demonstration process, the detachable design of the carbon brush head 12 is convenient for demonstration personnel to replace the carbon brush head 12 which cannot be used due to abrasion, and demonstration teaching of the demonstration device is not affected.
Further, the driving belt 6 is an industrial belt or a cow leather belt, and the industrial belt or the cow leather belt has good toughness, is not easy to age after long-term use and is wear-resistant.
Further, the bidirectional knife switch is divided into a first bidirectional knife switch 2 and a second bidirectional knife switch 3, the first bidirectional knife switch 2 controls the switching of the light-emitting component, the second bidirectional knife switch 3 controls the switching of the alternating current and direct current generated by the alternating current-direct current generator, and the light-emitting component and the alternating current-direct current can be freely switched in the demonstration process through the design of the bidirectional knife switch, so that the demonstration process is clearer and the demonstration result is more accurate.
Further, the light emitting component comprises a light emitting diode and a small bulb 8, the light emitting diode comprises a plurality of blue light emitting diodes 14 and a plurality of red light emitting diodes 7, the light emitting diodes are welded on the circuit board 20, obvious different phenomena can be observed when alternating current and direct current act, the small bulb 8 also has obvious phenomena when direct current and alternating current act, the light emitting diode and the small bulb 8 can make the demonstration result clearer on one hand, the demonstration interestingness is improved, and on the other hand, the actions of alternating current, direct current and alternating current and direct current can be clearly distinguished on the phenomenon, so that the light emitting component is more convenient for students to understand.
The working principle is as follows: in the demonstration process, a demonstration person holds a hand crank 5 on the driving wheel 4 to rotate, and under the transmission effect, a driving belt 6 on the driving wheel 4 drives an armature 10 on a rotating shaft 11 of the AC/DC generator to rotate, and the armature 10 rotates inside a pole shoe 15 of a magnet 9 to cut a magnetic induction line, so that current is generated. During the demonstration of direct current operation, the second bidirectional knife 23 of the second bidirectional knife switch 3 is driven to the DC side, namely the direct current contact 19, the driving wheel 4 is rotated anticlockwise, the alternating current-direct current generator operates in the forward direction, and when the first bidirectional knife 22 of the first bidirectional knife switch 2 is driven to the small bulb contact 17, the small bulb 8 can be observed to be long and bright; when the first bidirectional blade 22 of the first bidirectional blade switch 2 is driven to the light emitting diode contact 16, the blue light emitting diode 14 is observed to flash, and in the case of counterclockwise rotation of the driving wheel 4, the ac/DC generator is operated in the reverse direction, the second bidirectional blade 23 of the second bidirectional blade switch 3 is driven to the DC side, and when the first bidirectional blade 22 of the first bidirectional blade switch 2 is driven to the light emitting diode contact 16, the red light emitting diode 7 is observed to flash. When the second bidirectional knife 23 of the second bidirectional knife switch 3 is driven to the AC side, namely the alternating current contact 18, and the first bidirectional knife 22 of the first bidirectional knife switch 2 is driven to the light-emitting diode contact 16 during alternating current operation demonstration, the driving wheel 4 is rotated clockwise or anticlockwise, and the red light-emitting diode 7 and the blue light-emitting diode 14 can be observed to flash alternately; when the first bi-directional blade 22 of the first bi-directional blade switch 2 is turned to the small bulb contact 17, the driving wheel 4 is rotated counterclockwise, the small bulb 8 is observed to blink, and the blinking brightness is continuously enhanced with the increase of the rotation speed of the driving wheel 4.
It should be noted that the electrical components such as the bidirectional knife switch, the ac/dc generator, the light emitting diode and the like used in the utility model are all products in the prior art, and the technical personnel in the art select, install and complete the debugging operation of the circuit according to the use requirement, so as to ensure that each electrical component can work normally, and the components are all universal standard components or components known to the technical personnel in the art, and the structure and principle of the electrical component are all known by the technical personnel or known by the conventional experimental method, so that the inventor does not make specific limitation here.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the utility model.
Claims (6)
1. The utility model provides a hand ac/dc generator presentation device, its characterized in that, including setting up the ac/dc generator, hand device, two-way knife switch, the luminous subassembly on holding the thing bench, hand device includes hand handle, drive wheel and drive belt, hand handle sets up on the drive wheel, the drive wheel pass through the drive belt with the transmission of ac/dc generator links to each other, two-way knife switch includes first two-way knife switch and second two-way knife switch, ac/dc generator with first two-way knife switch the two-way knife switch luminous subassembly electrical property links to each other in proper order.
2. The demonstration device of a hand-operated alternating current/direct current generator according to claim 1, wherein the alternating current/direct current generator comprises an armature, a magnet, a rotating shaft, a collecting ring and a carbon brush, the driving wheel is in transmission connection with the rotating shaft through a driving belt, the armature is rotatably installed on the rotating shaft, the armature is suspended in a pole shoe of the magnet, the carbon brush is installed on two sides of the collecting ring, and a carbon brush head of the carbon brush is lightly touched on the surface of the collecting ring.
3. The hand-operated ac/dc generator demonstration device according to claim 2, wherein the carbon brush is detachably connected to the carbon brush head.
4. The hand ac/dc generator demonstration device according to claim 1, wherein the driving belt is made of industrial belt or bovine belt.
5. The hand-operated ac/dc generator presentation device of claim 1, wherein the first bi-directional blade switch comprises a first bi-directional blade, a light emitting diode contact, and a small bulb contact, the second bi-directional blade switch comprises a second bi-directional blade, an ac contact, and a dc contact, the first bi-directional blade switch controls switching of the light emitting assembly, and the second bi-directional blade switch controls switching of ac/dc generated by the ac/dc generator.
6. The hand-cranking ac/dc generator presentation apparatus according to claim 5, wherein said light emitting assembly comprises a light emitting diode and a small bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321714671.5U CN220020451U (en) | 2023-06-30 | 2023-06-30 | Hand-operated AC/DC generator demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321714671.5U CN220020451U (en) | 2023-06-30 | 2023-06-30 | Hand-operated AC/DC generator demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220020451U true CN220020451U (en) | 2023-11-14 |
Family
ID=88671966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321714671.5U Active CN220020451U (en) | 2023-06-30 | 2023-06-30 | Hand-operated AC/DC generator demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220020451U (en) |
-
2023
- 2023-06-30 CN CN202321714671.5U patent/CN220020451U/en active Active
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