CN210181894U - Variable power supply demonstration device - Google Patents
Variable power supply demonstration device Download PDFInfo
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- CN210181894U CN210181894U CN201920472257.5U CN201920472257U CN210181894U CN 210181894 U CN210181894 U CN 210181894U CN 201920472257 U CN201920472257 U CN 201920472257U CN 210181894 U CN210181894 U CN 210181894U
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- voltage
- pilot lamp
- backup pad
- power supply
- adjustable power
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- 230000000694 effects Effects 0.000 abstract description 9
- 238000010030 laminating Methods 0.000 description 5
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Abstract
The utility model relates to a teaching aid technical field, the purpose provides a variable power presentation device, including the demonstration board, the adjustable power of voltage, the excessive pressure circuit breaker, a plurality of first pilot lamp LED1 and a plurality of second pilot lamp LED2, first pilot lamp LED 1's operating voltage is less than second pilot lamp LED 2's operating voltage, the adjustable power of voltage, a plurality of first pilot lamp LED1 and a plurality of second pilot lamp LED2 are all installed on the demonstration board, a plurality of first pilot lamp LED 1's positive pole all is connected with the anodal of the adjustable power of voltage, a plurality of first pilot lamp LED 1's negative pole all is connected with the negative pole of the adjustable power of voltage, a plurality of second pilot lamp LED 2's positive pole all is connected with the anodal of the adjustable power of voltage, a plurality of second pilot lamp LED 2's negative pole all is connected with the negative pole of the adjustable power of voltage, it has the excessive pressure circuit breaker still to establish ties between a plurality of first pilot lamp LED1 and the adjustable power of voltage. The utility model discloses have the effect that improves the interesting in classroom.
Description
Technical Field
The utility model relates to a teaching aid technical field, concretely relates to variable power presentation device.
Background
The electromotive force is a physical quantity reflecting the ability of a power supply to convert energy of other forms into electric energy, and the electromotive force causes a voltage to be generated across the power supply. Inside the power supply, when the non-electrostatic force moves positive charges from the negative plate to the positive plate, work is required to be done on the charges, and the physical process of doing work is the essence of generating electromotive force of the power supply. The work done by the non-electrostatic force reflects how much other forms of energy become electrical. Therefore, inside the power supply, the process of doing work by using non-electrostatic force is the process of mutual energy conversion.
Generally, in a classroom, demonstration experiments of electromotive force are demonstrated through a screen and books, a traditional teaching demonstration method is lack of vivid and interesting lead-in experiments, and students are too abstract, so that the classroom is boring.
Disclosure of Invention
An object of the utility model is to provide a variable power presentation device has the interesting advantage in improvement classroom.
In order to achieve the above object, the utility model adopts the following technical scheme: a variable power source demonstration device comprises a demonstration board, a voltage adjustable power source, a plurality of first indicator light LEDs 1 and a plurality of second indicator light LEDs 2 of an overvoltage breaker, the operating voltage of the first indicator light LED1 is less than the operating voltage of the second indicator light LED2, the adjustable power of voltage, a plurality of first pilot lamp LED1 and a plurality of second pilot lamp LED2 all installs demonstration board is last, and is a plurality of first pilot lamp LED1 positive pole all with the anodal of adjustable power of voltage is connected, and is a plurality of first pilot lamp LED 1's negative pole all with the negative pole of adjustable power of voltage is connected, and is a plurality of second pilot lamp LED 2's positive pole all with the anodal of adjustable power of voltage is connected, and is a plurality of second pilot lamp LED 2's negative pole all with the negative pole of adjustable power of voltage is connected, and is a plurality of first pilot lamp LED1 with it has the excessive pressure circuit breaker still to establish ties between the adjustable power of voltage.
Through adopting above-mentioned technical scheme, in the experimentation, operating personnel adjusts the output voltage of voltage adjustable power, and when the output voltage of voltage adjustable power did not reach the operating voltage of first pilot lamp LED1, a plurality of first pilot lamp LED1 and a plurality of second pilot lamp LED2 were all in the off-state. An operator increases the output voltage of the voltage-adjustable power supply, so that the output voltage of the voltage-adjustable power supply is in a working voltage interval of the first indicator light LED1, the output voltage of the voltage-adjustable power supply is smaller than the working voltage of the second indicator light LED2, the first indicator light LEDs 1 are in a lighting state, and the second indicator light LEDs 2 are in a lighting-off state. Operating personnel continues to increase the output voltage of the adjustable power supply of voltage, make the output voltage of adjustable power supply be greater than the operating voltage of first pilot lamp LED1, breaker disconnection voltage adjustable power supply and a plurality of first pilot lamp LED 1's be connected, make a plurality of first pilot lamp LED1 be in the outage state, the output voltage of adjustable power supply is in the operating voltage interval of second pilot lamp LED2 this moment, a plurality of first pilot lamp LED1 are in the outage state this moment, and a plurality of second pilot lamp LED2 are in the state of lighting, thereby make operating personnel can observe the change of voltage more directly perceivedly, reach the interesting effect in improvement classroom.
Preferably, the first indicator light LED1 and the second indicator light LED2 emit different colored lights when illuminated.
By adopting the technical scheme, the effect that an operator can observe the change of the voltage more intuitively is achieved.
Preferably, the overvoltage circuit breaker is an air circuit breaker.
Through adopting above-mentioned technical scheme, air circuit breaker when the output voltage of voltage adjustable power supply is greater than first pilot lamp LED 1's operating voltage, disconnection voltage adjustable power supply and a plurality of first pilot lamp LED1 to reach the effect that prevents a plurality of first pilot lamp LED1 excessive pressure to burn out to a certain extent.
Preferably, the loudspeaker box further comprises a sound box, the voltage-adjustable power supply supplies power to the sound box, and the sound box is further connected with an audio cable.
Through adopting above-mentioned technical scheme, the sound of audio amplifier output increases along with the increase of the output voltage of voltage adjustable power to reach and make operating personnel can observe the effect of the change of voltage more directly perceivedly.
Preferably, the demonstration board is provided with a ground glass plate, and the ground glass plate covers the first indicator light LED1 and the second indicator light LED 2.
Through adopting above-mentioned technical scheme, reach and prevent to a certain extent a plurality of first pilot lamp LED1 and a plurality of second pilot lamp LED2 when being lighted, the effect of the direct eye of operating personnel of light.
Preferably, the operating voltage of the first indicator light LED1 is 2.2V-2.4V, and the operating voltage of the second indicator light LED2 is 3.2V-3.4V.
By adopting the technical scheme, the first indicator light LED1 and the second indicator light LED2 work under different voltages.
Preferably, the demonstration board deviates from it has first backup pad and second backup pad to articulate on first pilot lamp LED 1's the lateral wall, first backup pad lid closes in the second backup pad, first backup pad is kept away from one side of first backup pad articulates on the demonstration board, the second backup pad is kept away from one side of second backup pad articulates on the demonstration board, the second backup pad is just right offer the confession on the lateral wall of demonstration board the slot that first backup pad was pegged graft.
Through adopting above-mentioned technical scheme, when needing to use this presentation device, operating personnel unscrews first backup pad and second backup pad, then places the second backup pad on the desktop, rotates first backup pad again for first backup pad is pegged graft in the slot in the second backup pad, thereby reaches the effect that supports the demonstration board.
Preferably, the second supporting plate is opposite to a first magnet block arranged on the side wall of the first supporting plate, the first supporting plate is opposite to a second magnet block arranged on the side wall of the second supporting plate, and the polarities of the first magnet block and the second magnet block are different.
Through adopting above-mentioned technical scheme, when not using this demonstration appearance, operating personnel rotates the second backup pad for the laminating of second backup pad is on the demonstration board, then rotates first backup pad, makes the laminating of first backup pad in the second backup pad, makes the actuation of second magnet piece on first magnet piece, thereby reaches the effect of accomodating first backup pad and second backup pad.
In conclusion, the beneficial effects of the invention are as follows:
1. the utility model has the advantages of improving the interest of the classroom;
2. the utility model discloses an it has first backup pad and second backup pad to articulate on the demonstration appearance, and first backup pad cooperation second backup pad plays the supporting role to the demonstration board, has the effect that makes things convenient for operating personnel to use this presentation device.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view for showing the first supporting plate and the second supporting plate of the present invention.
Fig. 3 is a schematic structural view for showing the first magnet block and the second magnet block of the present invention.
In the figure, 1, a board is demonstrated; 2. a voltage adjustable power supply; 3. an overvoltage interrupter; 4. a sound box; 5. a first support plate; 51. a second magnet block; 6. a second support plate; 61. a first magnet block.
Detailed Description
The technical solution in the embodiments of the present invention is clearly and completely described below with reference to fig. 1 to 3 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 creative work belong to the protection scope of the present invention.
Referring to fig. 1, the variable power source demonstration device comprises a demonstration board 1, a voltage adjustable power source 2, an overvoltage breaker 3, three first indicator light LEDs 1 and three second indicator light LEDs 2, wherein in the embodiment, the output voltage of the voltage adjustable power source 2 is adjustable within 0V-24V. The operating voltage of the first indicator light LED1 is 2.2V-2.4V and the operating voltage of the second indicator light LED2 is 3.2V-3.4V, so that the first indicator light LED1 and the second indicator light LED2 are lit at different voltages. In this embodiment, the first indicator light LED1 is a red LED light, and the second indicator light LED2 is a green LED light. Be provided with the ground glass board on the demonstration board 1, ground glass board covers and establishes on three first pilot lamp LED1 and three second pilot lamp LED2, prevents to a certain extent that three first pilot lamp LED1 and three second pilot lamp LED2 when being lighted, the light shines operator's eyes directly. The voltage-adjustable power supply 2, the three first indicator lamps LED1 and the three second indicator lamps LED2 are all installed on the demonstration board 1, the anodes of the three first indicator lamps LED1 are all connected with the anode of the voltage-adjustable power supply 2, and the cathodes of the three first indicator lamps LED1 are all connected with the cathode of the voltage-adjustable power supply 2. The anodes of the three second indicator light LEDs 2 are connected with the anode of the voltage-adjustable power supply 2, and the cathodes of the three second indicator light LEDs 2 are connected with the cathode of the voltage-adjustable power supply 2. An overvoltage circuit breaker 3 is also connected in series between the three first indicator light LEDs 1 and the voltage-adjustable power supply 2, and the overvoltage circuit breaker 3 is an air circuit breaker. The demonstration device further comprises a sound box 4, the voltage-adjustable power supply 2 supplies power to the sound box 4, and an audio cable is further connected to the sound box 4.
In the experiment process, an operator connects the mobile phone with the sound box 4 through an audio cable, the sound box 4 outputs sound, the operator adjusts the output voltage of the voltage-adjustable power supply 2, when the output voltage of the voltage-adjustable power supply 2 does not reach the working voltage of the first indicator light LED1, the three first indicator light LEDs 1 and the three second indicator light LEDs 2 are both in an off state, and at the moment, the sound box 4 outputs small sound. The operator increases the output voltage of the voltage-adjustable power supply 2, so that the output voltage of the voltage-adjustable power supply is within the working voltage interval of the first indicator light LED1, the output voltage of the voltage-adjustable power supply is lower than the working voltage of the second indicator light LED2, the three first indicator light LEDs 1 are in the on state, the three second indicator light LEDs 2 are in the off state, and the sound output by the sound box 4 is increased. The operating personnel continues to increase the output voltage of the voltage-adjustable power supply 2, so that the output voltage of the voltage-adjustable power supply is greater than the working voltage of the first indicator light LED1, the circuit breaker disconnects the voltage-adjustable power supply 2 from the three first indicator light LEDs 1, so that the three first indicator light LEDs 1 are in a power-off state, the output voltage of the voltage-adjustable power supply is in a working voltage interval of the second indicator light LED2, the three first indicator light LEDs 1 are in the power-off state, the three second indicator light LEDs 2 are in a lighting state, and the sound output by the sound box 4 is further increased.
Referring to fig. 2 and 3, demonstration board 1 is articulated on the lateral wall that deviates from first pilot lamp LED1 have first backup pad 5 and second backup pad 6, and first backup pad 5 lid closes in second backup pad 6, and one side that first backup pad 5 was kept away from articulates on demonstration board 1, and one side that second backup pad 6 was kept away from to second backup pad 6 articulates on demonstration board 1. The second supporting plate 6 is opposite to the side wall of the demonstration plate 1 and is provided with a slot for the first supporting plate 5 to be inserted. The second support plate 6 is provided with a first magnet block 61 on the side wall facing the first support plate 5, the first support plate 5 is provided with a second magnet block 51 on the side wall facing the second support plate 6, and the polarities of the first magnet block 61 and the second magnet block 51 are different.
When needing to use this presentation device, operating personnel unscrew first backup pad 5 and second backup pad 6, then place second backup pad 6 on the desktop, rotate first backup pad 5 again for in first backup pad 5 pegs graft the slot in second backup pad 6, first backup pad 5 and second backup pad 6 support demonstration board 1. When not using this demonstration appearance, operating personnel rotates second backup pad 6 for second backup pad 6 laminates on demonstration board 1, then rotates first backup pad 5, makes the laminating of first backup pad 5 on second backup pad 6, makes the actuation of second magnet piece 51 on first magnet piece 61, thereby accomodate first backup pad 5 and second backup pad 6.
The utility model discloses an implement the principle and do: before needing to use this presentation device, operating personnel unscrew first backup pad 5 and second backup pad 6, then place second backup pad 6 on the desktop, rotate first backup pad 5 again for in first backup pad 5 pegs graft the slot in second backup pad 6, first backup pad 5 and second backup pad 6 support demonstration board 1. The operating personnel is connected the cell-phone with audio cable and audio amplifier 4 again, and audio amplifier 4 output sound, and operating personnel adjusts the output voltage of voltage adjustable power supply 2, and when the output voltage of voltage adjustable power supply 2 did not reach the operating voltage of first pilot lamp LED1, three first pilot lamp LED1 and three second pilot lamp LED2 were all in the off-state, and audio amplifier 4 output less sound this moment. The operator increases the output voltage of the voltage-adjustable power supply 2, so that the output voltage of the voltage-adjustable power supply is within the working voltage interval of the first indicator light LED1, the output voltage of the voltage-adjustable power supply is lower than the working voltage of the second indicator light LED2, the three first indicator light LEDs 1 are in the on state, the three second indicator light LEDs 2 are in the off state, and the sound output by the sound box 4 is increased. The operating personnel continues to increase the output voltage of the voltage-adjustable power supply 2, so that the output voltage of the voltage-adjustable power supply is greater than the working voltage of the first indicator light LED1, the circuit breaker disconnects the voltage-adjustable power supply 2 from the three first indicator light LEDs 1, so that the three first indicator light LEDs 1 are in a power-off state, the output voltage of the voltage-adjustable power supply is in a working voltage interval of the second indicator light LED2, the three first indicator light LEDs 1 are in the power-off state, the three second indicator light LEDs 2 are in a lighting state, the sound output by the sound box 4 is further increased, and the operating personnel can visually observe the change of the voltage. After using up this demonstration appearance, operating personnel rotates second backup pad 6 for 6 laminating of second backup pad are on demonstration board 1, then rotate first backup pad 5, make the laminating of first backup pad 5 on second backup pad 6, make the actuation of second magnet piece 51 on first magnet piece 61, thereby accomodate first backup pad 5 and second backup pad 6.
In the description of the present invention, it should be understood that the terms "counterclockwise", "clockwise", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Claims (8)
1. A variable power source presentation device, characterized by: including demonstration board (1), the adjustable power supply of voltage (2), overvoltage circuit breaker (3), a plurality of first pilot lamp LED1 and a plurality of second pilot lamp LED2, first pilot lamp LED 1's operating voltage is less than second pilot lamp LED 2's operating voltage, adjustable power supply of voltage (2), a plurality of first pilot lamp LED1 and a plurality of second pilot lamp LED2 all installs on demonstration board (1), it is a plurality of first pilot lamp LED 1's positive pole all with the anodal of the adjustable power supply of voltage (2) is connected, and is a plurality of first pilot lamp LED 1's negative pole all with the negative pole of the adjustable power supply of voltage (2) is connected, and is a plurality of second pilot lamp LED 2's positive pole all with the anodal of the adjustable power supply of voltage (2) is connected, and is a plurality of second pilot lamp LED 2's negative pole all with the negative pole of the adjustable power supply of voltage (2) is connected, and is a plurality of first pilot lamp LED1 with it has overvoltage circuit breaker (3) to establish ties between the adjustable power supply of voltage (2).
2. A variable power source presentation device as claimed in claim 1, wherein: the first indicator light LED1 and the second indicator light LED2 emit different colored lights when illuminated.
3. A variable power source presentation device as claimed in claim 1, wherein: the overvoltage circuit breaker (3) is an air circuit breaker.
4. A variable power source presentation device as claimed in claim 1, wherein: the loudspeaker box is characterized by further comprising a loudspeaker box (4), the voltage-adjustable power supply (2) is used for supplying power to the loudspeaker box (4), and an audio cable is further connected to the loudspeaker box (4).
5. A variable power source presentation device as claimed in claim 1, wherein: be provided with ground glass board on demonstration board (1), ground glass board cover is established a plurality of first pilot lamp LED1 and a plurality of on the second pilot lamp LED 2.
6. A variable power source presentation device as claimed in claim 1, wherein: the working voltage of the first indicator light LED1 is 2.2V-2.4V, and the working voltage of the second indicator light LED2 is 3.2V-3.4V.
7. A variable power source presentation device as claimed in claim 1, wherein: demonstration board (1) deviates from it has first backup pad (5) and second backup pad (6) to articulate on first pilot lamp LED 1's the lateral wall, first backup pad (5) lid closes on second backup pad (6), keep away from first backup pad (5) one side of first backup pad (5) articulates on demonstration board (1), keep away from second backup pad (6) one side of second backup pad (6) articulates on demonstration board (1), second backup pad (6) are just right offer the confession on the lateral wall of demonstration board (1) the slot that first backup pad (5) was pegged graft.
8. A variable power source presentation device as claimed in claim 7, wherein: the second supporting plate (6) is right opposite to a first magnet block (61) is arranged on the side wall of the first supporting plate (5), the first supporting plate (5) is right opposite to a second magnet block (51) is arranged on the side wall of the second supporting plate (6), and the polarities of the first magnet block (61) and the second magnet block (51) are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920472257.5U CN210181894U (en) | 2019-04-09 | 2019-04-09 | Variable power supply demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920472257.5U CN210181894U (en) | 2019-04-09 | 2019-04-09 | Variable power supply demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210181894U true CN210181894U (en) | 2020-03-24 |
Family
ID=69830521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920472257.5U Expired - Fee Related CN210181894U (en) | 2019-04-09 | 2019-04-09 | Variable power supply demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210181894U (en) |
-
2019
- 2019-04-09 CN CN201920472257.5U patent/CN210181894U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200324 |