CN210443078U - A kind of parallel circuit teaching aid - Google Patents

Abstract

The utility model relates to a parallel circuit teaching aid, it includes: the teaching aid comprises a teaching aid body, wherein two or more bulbs and a power supply for supplying power to the bulbs are arranged on the teaching aid body at intervals, the two or more bulbs are electrically connected with the power supply through two or more switching mechanisms respectively, the number of the bulbs is the same as that of the switching mechanisms, one bulb is connected with one switching mechanism in series, the two or more bulbs are arranged in parallel, and the two or more switching mechanisms are arranged in parallel. The utility model has the characteristics of simple structure, the cost of manufacture is low, easy to use, interesting strong.

Description

Parallel circuit teaching aid

Technical Field

The utility model relates to a teaching aid technical field especially relates to a parallel circuit teaching aid.

Background

As is well known, the parallel circuit teaching aid is one of the physics teaching aids, is widely applied to a teaching system, and the existing parallel circuit teaching aid is too single in teaching form and cannot mobilize the enthusiasm of students.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the above problems in the prior art, the utility model provides a parallel circuit teaching aid has simple structure, and the cost of manufacture is low, easy to use, interesting strong characteristics.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

a parallel circuit teaching aid, comprising: the teaching aid comprises a teaching aid body, wherein two or more bulbs and a power supply for supplying power to the bulbs are arranged on the teaching aid body at intervals, the two or more bulbs are electrically connected with the power supply through two or more switching mechanisms respectively, the number of the bulbs is the same as that of the switching mechanisms, one bulb is connected with one switching mechanism in series, the two or more bulbs are arranged in parallel, and the two or more switching mechanisms are arranged in parallel.

Further, switch mechanism is including connecting the barrel on the teaching aid body, be equipped with two sheetmetals according to the interval in the barrel, a sheetmetal is connected with the one end electricity of bulb, and another sheetmetal is connected with the one end electricity of power, there is the conduction board through spring coupling in the barrel, when the spring was compressed, the conduction board cooperateed with two sheetmetals for bulb, two sheetmetals, conduction board and power form a closed circuit.

Furthermore, the periphery of the teaching aid body is provided with a surrounding baffle.

Furthermore, the material of the spring is plastic.

(III) advantageous effects

The utility model has the advantages that: simple structure not only has the function of traditional parallel circuit teaching aid, still has the interest.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating a circuit connection state of a bulb according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a switch mechanism according to an embodiment of the present invention.

[ description of reference ]

1: a teaching aid body;

2: a bulb;

5: a switch mechanism;

9: a power source;

10: a barrel;

11: a conduction plate;

12: a spring;

13: a metal sheet;

14: and (7) fencing.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

The utility model discloses a parallel circuit teaching aid of an embodiment, as shown in fig. 1, fig. 2, fig. 3, it includes: teaching aid body 1, teaching aid body 1 is the desk, convenient preparation, and can arrange mutually with school's environment, be equipped with all around of teaching aid body 1 and enclose fender 14 for article block the effect.

Specifically, two or more bulbs 2 and a power supply 9 for supplying power to the bulbs 2 are arranged on the teaching aid body 1 at intervals, and the power supply 9 is a battery; two or more bulbs 2 are respectively and electrically connected with a power supply 9 through two or more switch mechanisms 5, the number of the bulbs 2 is the same as that of the switch mechanisms 5, one bulb 2 is connected with one switch mechanism 5 in series, the two or more bulbs 2 are arranged in parallel, and the two or more switch mechanisms 5 are arranged in parallel.

Specifically, the switch mechanism 5 comprises a cylinder 10 connected to the teaching aid body 1, two metal sheets 13 are arranged in the cylinder 10 at intervals, one metal sheet 13 is electrically connected with one end of the bulb 2, the other metal sheet 13 is electrically connected with one end of the power supply 9, a conducting plate 11 is connected in the cylinder 10 through a spring 12, and the spring 12 is made of plastic in order to prevent the spring 12 and the metal sheet 13 from conducting electricity; when the spring 12 is compressed, the conducting plate 11 is matched with the two metal sheets 13, so that the bulb 2, the two metal sheets 13, the conducting plate 11 and the power supply 9 form a closed circuit; when the spring 12 is in an elongated shape, the bulb 2, the two metal pieces 13, the conduction plate 11 and the power source 9 form an open circuit.

During the teaching, throw the bobble toward the barrel 10 of the switching mechanism 5 of teaching aid body 1, the size of bobble can be selected according to the size of barrel 10, the elasticity size of the weight accessible spring 12 of bobble is selected, through bobble vertical compression conduction board 11, make bulb 2, two sheetmetals 13, conduction board 11 and power 9 form a closed circuit, realize the parallelly connected of a plurality of circuits, make shining of a plurality of bulbs 2, reach parallel circuit's teaching purpose.

In conclusion, the device has a simple structure, not only has the function of the traditional parallel circuit teaching aid, but also has interestingness.

Claims (4)

1. A parallel circuit teaching aid, it is characterized in that, it comprises: teaching aid body (1), described teaching aid body (1) is provided with two or more light bulbs (2) at intervals and for light bulbs (2) ) power supply (9) for power supply, two or more light bulbs (2) are respectively electrically connected with the power supply (9) through two or more switch mechanisms (5), and the number of light bulbs (2) is related to the switch mechanism The number of (5) is the same, one light bulb (2) is connected in series with one switch mechanism (5), two or more light bulbs (2) are arranged in parallel, and two or more switch mechanisms (5) are arranged in parallel. ) are set in parallel. 2. A parallel circuit teaching aid as claimed in claim 1, characterized in that: the switch mechanism (5) comprises a cylinder (10) connected to the teaching aid body (1), and inside the cylinder (10) Two metal sheets (13) are arranged at intervals, one metal sheet (13) is electrically connected to one end of the bulb (2), and the other metal sheet (13) is electrically connected to one end of the power supply (9). 10) A conducting plate (11) is connected through a spring (12), and when the spring (12) is compressed, the conducting plate (11) cooperates with the two metal sheets (13), so that the bulb (2), the two The metal sheets (13), the conducting plate (11) and the power supply (9) form a closed circuit. 3. A parallel circuit teaching aid as claimed in claim 1, characterized in that: a surrounding block (14) is provided around the teaching aid body (1). 4. A parallel circuit teaching aid according to claim 2, wherein the material of the spring (12) is plastic.

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