CN217061238U - Capacitor charging and discharging demonstration instrument - Google Patents

Abstract

The utility model discloses a capacitor charge-discharge demonstration instrument, which comprises a box body, wherein an integrated circuit boosting module, a capacitor, a voltmeter and a discharge terminal are fixed inside the box body; the integrated circuit boosting module boosts the voltage of 9v to about 200v of direct current voltage and then charges the capacitor, and the change of a pointer of a voltmeter can be seen, so that the charging process of the capacitor is displayed. One minute charges, then contacts discharge terminal with the fork that discharges, makes the condenser short circuit discharge, produces the explosive discharge effect in the twinkling of an eye, and this instrument is used for high school physics teaching, and the structure is succinct, and the phenomenon is showing, has greatly promoted the teaching effect.

Description

Capacitor charging and discharging demonstration instrument

Technical Field

The utility model relates to an instrument in electromagnetism experiment field, concretely relates to capacitor charging and discharging demonstration appearance.

Background

In the teaching of the physical capacitor in high school, the charging and discharging conditions of the capacitor are only oral description of teachers, and no visible instrument is used for teaching.

For the charge-discharge condition of better show condenser, the utility model discloses condenser charge-discharge demonstration appearance adopts integrated circuit boost module, and direct current middling pressure about rising to 200v to 9v voltage charges for the condenser, changes with the voltmeter pointer and shows the charging process. After charging for one minute, the capacitor is short-circuited and discharged by the discharge fork, and an explosive discharge effect is generated instantly. The instrument is used for high school physics teaching, has a simple structure and remarkable phenomenon, and greatly improves the teaching effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a condenser charge-discharge demonstration appearance has realized the breakthrough of high school physics "condenser" teaching in the aspect of the instrument to experiment teaching effect has greatly been promoted.

The utility model discloses: a capacitor charging and discharging demonstration instrument comprises a box body, wherein a capacitor, an integrated boosting module, a battery box, a voltmeter, a power switch, a charging button, a discharging terminal, a bracket and a discharging fork are arranged in the box body;

wherein the power switch, the charging button and the discharging terminal extend out of the box through the side wall punching; the battery box is connected with a power switch, the power switch is connected with an integrated boosting module, and the integrated boosting module is connected with a capacitor, a voltmeter, a charging button and a discharging terminal.

A support is arranged in the box body, and a discharge fork is fixed on the support.

The battery box is internally provided with a battery which provides 9V voltage for the power supply.

The utility model discloses the advantage:

the instrument is used for high school physics teaching, has a simple structure and remarkable phenomenon, and greatly improves teaching effect

Drawings

Fig. 1 is a plan view of the structure of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a schematic circuit diagram of the present invention.

Description of reference numerals: the device comprises a capacitor 1, a battery box 2, an integrated boosting module 3, a voltmeter 4, a support 5, a discharge fork 6, a charge button 7, a power switch 8 and a discharge terminal 9.

Detailed Description

The present invention will be described in detail with reference to the drawings, and the description is illustrative and explanatory only and should not be construed as limiting the technical contents of the present invention.

As shown in fig. 1 and 2, a capacitor charge and discharge demonstration instrument comprises a box body, wherein a capacitor 1, an integrated boosting module 3, a battery box 2, a voltmeter 4, a power switch 8, a charge button 7, a discharge terminal 9, a bracket 5 and a discharge fork 6 are arranged in the box body;

wherein the power switch 8, the charging button 7 and the discharging terminal 9 extend out of the box through the side wall punching; the battery case 2 is connected with a power switch 8, the power switch 8 is connected with an integrated boosting module 3, and the integrated boosting module 3 is connected with a capacitor 1, a voltmeter 4, a charging button 7 and a discharging terminal 9.

A support 5 is arranged in the box body, and a discharge fork 6 is fixed on the support 5.

The battery box 2 is internally provided with a battery which provides 9V voltage for a power supply.

The utility model discloses with integrated module 3 that steps up DC 9v low pressure to 200v direct current middling pressure, charge for condenser 1 with this voltage. An electrodeless capacitor with the capacity of 20uf or 30uf is selected, the withstand voltage value of the capacitor is 400v, and the capacitor 1 needs to be noticed that the capacity cannot be too large, otherwise, the teaching progress in a classroom is delayed due to too long charging time. A single-point double-button power switch 8 without self-locking is selected as a non-locking charging and discharging change-over switch. A direct current 300v voltmeter is connected to the output end of the integrated boost module 3 circuit and is connected with the charge-discharge capacitor 1 in parallel, and the purpose is to display the voltage rising condition of the capacitor 1 in the charging process. When the charge button 7 is pressed for about one minute while the capacitor 1 is charged, the DC voltmeter 4 indicates that the charging voltage reaches 200V, indicating that the charging is completed, the charge button 7 is released, the charging circuit is automatically cut off, and then short-circuit discharge is performed by the discharge fork 6, thereby generating an explosive spark and a sound.

1. Material selection and assembly process

A pine box is made, the length is 38cm, the width is 8cm, and the height is 8 cm. The integrated boost module 3, type hia4ui. bhavanaec XIPA, was chosen to boost the dc 9v low voltage to 200v dc medium voltage and use this voltage to charge the capacitor 1. An electrodeless capacitor with the capacity of 20uf or 30uf is selected, the withstand voltage value of the capacitor is 400v, the capacitor 1 cannot have overlarge capacity, and otherwise the classroom teaching progress is delayed due to overlong charging time. The power switch 8 is selected to be a single-point double-button switch without self-locking. A300V direct-current voltmeter 4 is connected with the output end of the integrated boosting module 3 and is connected with the charge-discharge capacitor 1 in parallel, and the purpose is to display the voltage rising condition of the capacitor 1 in the charging process. Six dry batteries of five size are transferred in the battery box 2. The above elements are welded by wires.

When the charge button 7 is pressed down for about one minute while the capacitor 1 is charged, the dc voltmeter 1 indicates that the charging voltage reaches 200v, indicating that the charging is completed, and at this time, the charging button 7 is released by releasing the hands, the charging circuit is automatically cut off, and the short circuit is discharged by the discharge fork 6.

2. The use and operation process comprises the following steps:

step one, opening an instrument box cover, putting 6 sections of No. 5 dry batteries into a battery box 2, buckling the instrument box cover, starting a power switch 8, and lighting a red indicator light;

secondly, pressing a charging button 7 to charge the capacitor 1, observing the change of the pointer of the direct-current voltmeter, finding that the indication number is gradually increased, when reaching about 200v, indicating that the charging is finished, and the whole charging time is about one minute;

and thirdly, releasing the charging button 7 by a loose hand, holding the discharging fork 6 by a hand, and shorting the discharging terminal 9 right in front of the instrument box, wherein the snap discharging sound is heard, and meanwhile, severe electric sparks are generated at the discharging terminal 9.

The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.

Claims (3)

1. The utility model provides a condenser charge-discharge demonstration appearance, includes a box body, characterized by: a capacitor (1), an integrated boosting module (3), a battery box (2), a voltmeter (4), a power switch (8), a charging button (7), a discharging terminal (9), a bracket (5) and a discharging fork (6) are arranged in the box body;

wherein the power switch (8), the charging button (7) and the discharging terminal (9) extend out of the box through the side wall punching; battery case (2) connect switch (8), integrated boost module (3) is connected in switch (8), condenser (1), voltmeter (4), charge button (7), discharge terminal (9) are connected in integrated boost module (3).

2. The capacitor charge-discharge demonstration instrument as claimed in claim 1, wherein: a support (5) is arranged in the box body, and a discharge fork (6) is fixed on the support (5).

3. The capacitor charge-discharge demonstration instrument according to claim 1, wherein: the battery box (2) is internally provided with a battery which provides 9V voltage for a power supply.

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