Integrated demonstrator for demonstrating influence of inductor and capacitor on alternating current

Abstract

The utility model discloses an integrated demonstrator for the influence of an inductor and a capacitor on alternating current, which comprises an inductor part, a capacitor part and a frequency conversion output part, and is characterized in that the inductor part consists of a bulb B, an inductor A, an inductor B, a switch A, a switch F and a switch G. The bulb B, the inductor A, the inductor B, the switch A, the switch F and the switch G are mounted at one end of a mounting plate; the capacitor part is composed of a bulb A, a capacitor A, a capacitor B, a switch B, a switch C, a switch D and a switch E. The bulb A, the capacitor A, the capacitor B, the switch B, the switch C, the switch D and the switch E are installed at the other end of the installation plate. According to the utility model, the frequency generator, the music player and the visual and audible frequency conversion output are connected through Bluetooth, so that the related concepts of inductive reactance and capacitive reactance can be correctly understood.

Description

Technical Field

[0001] The utility model belongs to the technical field of teaching molds, and in particular relates to an integrated demonstrator of the influence of inductance and capacitance on alternating current. Background Art

[0002] Physics experiments are an important part of physics teaching and are a way to cultivate students' practical ability. In physics teaching, teachers can use micro-videos, poems, experiments and other methods to create situations. In the prior art, the role of inductors and capacitors on alternating current is to hinder the current through resistance. Connect the coil with an iron core in series with the small light bulb, first connect them to a DC power supply, and then connect them to an AC power supply. Take the voltage of the DC power supply equal to the effective value of the AC voltage, and observe the brightness of the small light bulb. The second is the hindering effect of the capacitor on alternating current. Connect the small light bulb and the capacitor in series, first connect them to a DC power supply, and then connect them to an AC power supply, and observe the luminescence of the small light bulb respectively. DC cannot pass through the capacitor, so the light bulb connected to the DC power supply does not light up. When the capacitor is connected to both ends of the AC power supply, the voltage at both ends of the capacitor is constantly changing and constantly charging and discharging, and there is a charging and discharging current in the circuit, which is manifested as AC "passing" the capacitor. The textbook directly gives the experimental circuit diagram and corresponding conclusions for the effect of inductors and capacitors on alternating current. Since there is no experimental design reference for whether inductors and capacitors have an obstructive effect on alternating current and what factors are related to the magnitude of the obstruction, there is no suggestion for what scientific research methods to use for exploration. Therefore, the teacher directly gives the conclusion after teaching the circuit diagram. Since it is only visual, it will cause students to be unable to correctly understand the concepts related to inductive reactance and capacitive reactance, which will have certain difficulties in forming physical concepts and will also have a certain impact on the cultivation of students' scientific exploration ability and scientific thinking ability. Summary of the invention

[0003] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide an integrated demonstrator which can connect a frequency generator and a music player via Bluetooth, has visual and audible frequency conversion output, and can correctly understand the related concepts of inductive reactance and capacitive reactance and the influence of inductance and capacitance on alternating current.

[0004] The purpose of the utility model and the solution of its main technical problems are achieved by adopting the following technical solutions:

[0005] The utility model is an integrated demonstrator of the influence of inductance and capacitance on alternating current, comprising an inductance part, a capacitance part and a frequency conversion output part, and is characterized in that the inductance part is composed of a bulb B, an inductor A, an inductor B, a switch A, a switch F and a switch G, and the bulb B, the inductor A, the inductor B, the switch A, the switch F and the switch G are installed at one end of a mounting plate, and the capacitance part is composed of a bulb A, a capacitor A, a capacitor B, a switch B, a switch C, a switch D and a switch E, and the bulb A, the capacitor A, the capacitor B, the switch B, the switch C, the switch D and the switch E are installed at the other end of the mounting plate.

[0006] The frequency conversion output part is composed of a Bluetooth module, a speaker A, and a speaker B. The Bluetooth module is installed at the lower end of the middle part of the installation plate, and the speakers A and B are placed on the side.

[0007] A fan is installed at the upper end of the middle part of the installation plate.

[0008] The mounting plate is mounted on the bracket.

[0009] The inductor A is a filter inductor, which is composed of a fixed iron core and a coil inductance.

[0010] The inductor B is a fixed coil, which is composed of a fixed coil inserted into an iron core.

[0011] One end of the bulb B is connected to the inductor B and the switch G respectively with wires, the inductor B is connected to the inductor A with wires, the switch G is connected to the switch A with wires, the inductor A is connected to the switch A with wires, the switch A is connected to the switch F with wires, the switch F is connected to the bulb B with wires, the bulb A is connected to the switch B, the switch C and the switch D respectively with wires, the switch B is connected to the capacitor A with wires, the capacitor A is connected to the switch D with wires, the switch D is connected to the capacitor B with wires, the capacitor B is connected to the switch C with wires, the switch C is connected to the switch B, the switch D and the switch E with wires, the switch E is connected to the bulb A and the switch F with wires, the Bluetooth module and the fan are connected to the DC power supply or the AC power supply with wires, the speaker A is connected to the capacitor A, the inductor B and the speaker B with wires, the speaker A interface is connected to the power amplifier speaker, and the speaker B is connected to the capacitor B and the inductor A (1) with wires.

[0012] Compared with the prior art, the utility model has obvious beneficial effects; from the above technical scheme, it can be seen that: the inductance part is composed of a bulb B, an inductor A, an inductor B, a switch A, a switch F, and a switch G, and the bulb B, the inductor A, the inductor B, the switch A, the switch F, and the switch G are installed at one end of the mounting plate, and the capacitance part is composed of a bulb A, a capacitor A, a capacitor B, a switch B, a switch C, a switch D, and a switch E, and the bulb A, the capacitor A, the capacitor B, the switch B, the switch C, the switch D, and the switch E are installed at the other end of the mounting plate. The interface output is connected to the inductance part or the capacitance part, and the frequency generator or the music player is connected via Bluetooth to make it a visible and audible variable frequency output. The frequency generator and the music player are connected via Bluetooth, and the visible and audible variable frequency output is realized, and the related concepts of inductive reactance and capacitive reactance can be correctly understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Reference numerals:

[0015] 1. Inductor A, 2. Switch A, 3. Fan, 4. Bulb A, 5. Capacitor A, 6. Switch B, 7. Switch C, 8. Capacitor B, 9. Speaker A, 10. Speaker B, 11. Switch D, 12. Switch E, 13. Bluetooth module, 14. Switch F, 15. Bracket, 16. Inductor B, 17. Bulb B, 18. Mounting plate, 19. Switch G. DETAILED DESCRIPTION

[0016] Example 1

[0017] The specific implementation methods, structures, features and functions of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0018] The utility model is an integrated demonstrator of the influence of inductance and capacitance on alternating current, comprising an inductance part, a capacitance part and a frequency conversion output part, characterized in that the inductance part is composed of a bulb B17, an inductor A1, an inductor B16, a switch A2, a switch F14 and a switch G19, the bulb B17, the inductor A1, the inductor B16, the switch A2, the switch F14 and the switch G19 are installed at one end of a mounting plate 18, the capacitance part is composed of a bulb A4, a capacitor A5, a capacitor B8, a switch B6, a switch C7, a switch D11 and a switch E12, the bulb A4, the capacitor A5, the capacitor B8, the switch B6, the switch C7, the switch D11 and the switch E12 are installed at the other end of the mounting plate 18, the frequency conversion output part is composed of a Bluetooth module 13, a speaker A9 and a speaker B10, the Bluetooth module 13 is installed at the lower end of the middle part of the mounting plate 18, and the speakers A9, Speaker B10, fan 3 is installed at the upper end of the middle part of mounting plate 18, mounting plate 18 is installed on bracket 15, inductor A1 is a filter inductor, which is composed of a fixed iron core and a coil inductor, inductor B16 is a fixed coil, which is composed of a fixed coil inserted into an iron core, one end of bulb B17 is connected to inductor B16 and switch G19 with wires, inductor B16 is connected to inductor A1 with wires, switch G19 is connected to switch A2 with wires, inductor A1 is connected to switch A2 with wires, switch A2 is connected to switch F14 with wires, switch F14 is connected to bulb B17 with wires, bulb A4 is connected to switch B6, switch C7, switch D11 with wires, The switch B6 is connected to the capacitor A5 with a wire, the capacitor A5 is connected to the switch D11 with a wire, the switch D11 is connected to the capacitor B8 with a wire, the capacitor B8 is connected to the switch C7 with a wire, the switch C7 is connected to the switch B6, the switch D11, and the switch E12 with a wire, the switch E12 is connected to the bulb A4 and the switch F14 with a wire, the Bluetooth module 13 and the fan 3 are connected to the DC power supply or the AC power supply with a wire, the speaker A9 is connected to the capacitor A5, the inductor B16, and the speaker B10 with a wire, the speaker A9 interface is connected to the power amplifier speaker, and the speaker B10 is connected to the capacitor B8 with a wire.

[0019] Example 2

[0020] The utility model is an integrated demonstrator of the influence of inductance and capacitance on alternating current, comprising an inductance part, a capacitance part and a frequency conversion output part, characterized in that the inductance part is composed of a bulb B17, an inductor A1, an inductor B16, a switch A2, a switch F14 and a switch G19, the bulb B17, the inductor A1, the inductor B16, the switch A2, the switch F14 and the switch G19 are installed at one end of a mounting plate 18, the capacitance part is composed of a bulb A4, a capacitor A5, a capacitor B8, a switch B6, a switch C7, a switch D11 and a switch E12, the bulb A4, the capacitor A5, the capacitor B8, the switch B6, the switch C7, the switch D11 and the switch E12 are installed at the other end of the mounting plate 18, the frequency conversion output part is composed of a Bluetooth module 13, a speaker A9 and a speaker B10, the Bluetooth module 13 is installed at the lower end of the middle part of the mounting plate 18, and the speakers A9, Speaker B10, fan 3 is installed at the upper end of the middle part of mounting plate 18, mounting plate 18 is installed on bracket 15, inductor A1 is a filter inductor, which is composed of a fixed iron core and a coil inductor, inductor B16 is a fixed coil, which is composed of a fixed coil inserted into an iron core, one end of bulb B17 is connected to inductor B16 and switch G19 with wires, inductor B16 is connected to inductor A1 with wires, switch G19 is connected to switch A2 with wires, inductor A1 is connected to switch A2 with wires, switch A2 is connected to switch F14 with wires, switch F14 is connected to bulb B17 with wires, bulb A4 is connected to switch B6, switch C7, switch D11 with wires, The switch B6 is connected to the capacitor A5 with a wire, the capacitor A5 is connected to the switch D11 with a wire, the switch D11 is connected to the capacitor B8 with a wire, the capacitor B8 is connected to the switch C7 with a wire, the switch C7 is connected to the switch B6, the switch D11 and the switch E12 with a wire, the switch E12 is connected to the bulb A4 and the switch F14 with a wire, the Bluetooth module 13 and the fan 3 are connected to the DC power supply or the AC power supply with a wire, the speaker A9 is connected to the inductor B16 and the speaker B10 with a wire, the speaker A9 interface is connected to the power amplifier speaker, and the speaker B10 is connected to the inductor A1 with a wire.

[0021] When using, install the frequency generator software on the mobile phone, connect it to the Bluetooth module via Bluetooth, open the software, you can see 3 circles and the words 220HZ on the top, the yellow inner circle is "1" times increase or decrease, the gray outer circle is "0.1" times increase or decrease, touch the inner or outer circle clockwise or counterclockwise, you can see the frequency increase or decrease, and there are 3 Play start switches on the left. When experimenting, select the first one as the input frequency regulator. Click Play, adjust the frequency, observe the brightness of bulbs A4 and B17 and the pitch of speakers A9 and B10, connect the interface output to the inductor part or the capacitor part, and connect the frequency generator or music player via Bluetooth. Switch F14 controls the input to be a DC power supply or an AC power supply. When switch F14 is closed to the left, it is a DC power supply, and when it is closed to the right, it is an AC power supply. Switch G19 controls the passage or short circuit of inductor A1, and switch A2 controls the passage or short circuit of inductor B16. Under the input DC or AC power supply, the brightness of bulb B17 is controlled by switch F14, switch A2, and switch G19. The switch E12 controls the input of DC power or AC power. When the switch E12 is closed to the left, it is DC power, and when it is closed to the right, it is AC power. The switch B6 controls the capacitor A5 to access the circuit, the switch C7 controls the capacitor B8 to access the circuit, and the switch D11 controls the main circuit and can make the capacitor A5 and the capacitor B8 short-circuit to access the circuit. The brightness of the bulb A4 is controlled by the switch B6, the switch C7, the switch D11, and the switch E12 under the input DC or AC power. The speaker A9 interface is connected to the power amplifier speaker, and the input power is 8-24V DC power, which is used to monitor the relationship between the frequency and tone emitted by the frequency generator. The output of the speaker B10 interface is connected to the inductor part or the capacitor part, and the frequency generator or music player is connected through Bluetooth to make it a visible and audible variable frequency output. The fan 3 is used as a heat sink to dissipate heat.

[0022] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An integrated demonstrator of the effect of inductance and capacitance on alternating current, comprising an inductance part, a capacitance part, and a frequency conversion output part, characterized in that: The inductance part is composed of a bulb B (17), an inductor A (1), an inductor B (16), a switch A (2), a switch F (14), and a switch G (19). The bulb B (17), an inductor A (1), an inductor B (16), a switch A (2), a switch F (14), and a switch G (19) are mounted on one end of the mounting plate (18). The capacitance part is composed of a bulb A (4), a capacitor A (5), a capacitor B (8), a switch B (6), a switch C (7), a switch D (11), and a switch E (12). The bulb A (4), a capacitor A (5), a capacitor B (8), a switch B (6), a switch C (7), a switch D (11), and a switch E (12) are mounted on the other end of the mounting plate (18).

2. The integrated demonstrator of the effect of inductance and capacitance on alternating current as claimed in claim 1, characterized in that: The frequency conversion output part is composed of a Bluetooth module (13), a speaker A (9), and a speaker B (10). The Bluetooth module (13) is installed at the lower end of the middle part of the mounting plate (18), and the speaker A (9) and the speaker B (10) are placed on the side.

3. The integrated demonstrator of the effect of inductance and capacitance on alternating current as claimed in claim 1, characterized in that: A fan (3) is installed at the upper middle end of the installation plate (18).

4. The integrated demonstrator of the effect of inductance and capacitance on alternating current as claimed in claim 1, characterized in that: The mounting plate (18) is mounted on the bracket (15).

5. The integrated demonstrator of the effect of inductance and capacitance on alternating current as claimed in claim 1, characterized in that: The inductor A (1) is a filter inductor, which is composed of a fixed iron core and a coil inductance.

6. The integrated demonstrator of the effect of inductance and capacitance on alternating current as claimed in claim 1, characterized in that: The inductor B (16) is a fixed coil, which is composed of a fixed coil inserted into an iron core.

7. The integrated demonstrator of the effect of inductance and capacitance on alternating current as claimed in claim 1, characterized in that: One end of the bulb B (17) is connected to the inductor B (16) and the switch G (19) by wires, the inductor B (16) is connected to the inductor A (1) by wires, the switch G (19) is connected to the switch A (2) by wires, the inductor A (1) is connected to the switch A (2) by wires, the switch A (2) is connected to the switch F (14) by wires, the switch F (14) is connected to the bulb B (17) by wires, the bulb A (4) is connected to the switch B (6), the switch C (7) and the switch D (11) by wires, Switch B (6) is connected to capacitor A (5) by a wire, capacitor A (5) is connected to switch D (11) by a wire, switch D (11) is connected to capacitor B (8) by a wire, capacitor B (8) is connected to switch C (7) by a wire, switch C (7) is connected to switch B (6), switch D (11), and switch E (12) by a wire, switch E (12) is connected to light bulb A (4) and switch F (14) by a wire, the Bluetooth module (13) and the fan (3) are connected to a DC power supply or an AC power supply by a wire, speaker A (9) is connected to capacitor A (5), inductor B (16), and speaker B (10) by a wire, the interface of speaker A (9) is connected to the power amplifier speaker, and speaker B (10) is connected to capacitor B (8) and inductor A (1) by a wire.

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