CN214587582U

CN214587582U - Junior middle school electricity experiment teaching device

Info

Publication number: CN214587582U
Application number: CN202120930699.7U
Authority: CN
Inventors: 熊楚伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-02
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a junior middle school electricity experiment teaching device, which comprises a box body and a box cover, wherein a first circuit board is arranged in the box body, and the first circuit board is rotatably connected with the box body; a plurality of circuit elements for experiments are detachably arranged on the first circuit board; the circuit element is mounted through a mounting assembly; a plurality of mounting holes are uniformly formed in the first circuit board, and the mounting components penetrate through the mounting holes to fix the circuit elements; the mounting assembly comprises a bolt, a nut and a gasket, wherein the nut and the gasket are mounted on the bolt; and the end part of the bolt is provided with an inserting pile. The circuit elements are directly arranged on the circuit board, so that the whole testing device can be directly provided to provide equipment required by the test in practical use, and the preparation and acceptance are convenient; the problem of current middle school student electricity experiment many, electricity component is many, carries out the chooseing for use of equipment, prepare comparatively troublesome when experimental teaching is carried out at every turn, causes the loss and the damage of component easily is solved.

Description

Junior middle school electricity experiment teaching device

Technical Field

The utility model belongs to teaching experiment apparatus field, concretely relates to junior middle school electricity experiment teaching device.

Background

At present, the physical laboratory of junior middle school is equipped with an electrical experiment box, the devices in the electrical experiment box are complete, and the experimental operation is also convenient by adopting a plug-in binding post. However, certain problems are found in use and management, which are mainly shown in the following steps:

1. the electrical experiment is many, and electrical component is many, and present electrical experiment case is complete to the heavy component, and has neglected the design of first circuit board, and each experiment can be integrated to first circuit board.

2. When in use, the selection and preparation of equipment are carried out each time, which is troublesome, easily causes the loss and the damage of elements, especially to the shortage of teachers in middle school and experiment in some areas, aggravates the labor capacity of teachers in physics and influences the output rate of experiments.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a junior middle school electricity experiment teaching device, it is many to solve current middle school student's electricity experiment, and electrical component is many, carries out chooseing for use of equipment, prepares comparatively trouble when experimental teaching at every turn, causes the loss of component and the problem of damage easily.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a junior middle school electricity experiment teaching device, which comprises a box body and a box cover, wherein a first circuit board is arranged in the box body, and the first circuit board is rotatably connected with the box body; a plurality of circuit elements for experiments are detachably arranged on the first circuit board; the circuit element is mounted through a mounting assembly; a plurality of mounting holes are uniformly formed in the first circuit board, and the mounting components penetrate through the mounting holes to fix the circuit elements; the mounting assembly comprises a bolt, a nut and a gasket, wherein the nut and the gasket are mounted on the bolt; and the end part of the bolt is provided with an inserting pile. According to the technical content, the circuit elements are directly arranged on the circuit board, so that the whole testing device can be directly provided in practical use to provide equipment required by the test, and the preparation and acceptance are convenient; in addition, through setting up the porous circuit board, adopt the installation component to run through fix circuit element in the mounting hole, conveniently adjust the component position according to the experiment, first circuit board with the box rotates to be connected, during the regulation, directly overturns first circuit board, can follow the circuit board below and carry out the dismouting to the installation component, convenient and practical solves current middle school student's electricity experiment many, and electrical component is many, carries out the chooseing for use of equipment, prepares comparatively troublesome when experimental teaching at every turn, causes the loss of component and problem of damage easily.

In a possible design, be provided with the power supply district on the first circuit board, the power supply district includes No. 5 battery boxes of three section, three external posts, a positive terminal post and two negative terminal posts of battery box external, two negative terminal posts provide 3V and 4.5V voltage respectively. Through setting up a plurality of terminals in power supply area, provide different mains voltage, increase test data's variety, improve the device practicality.

In one possible design, the first circuit board is provided with an electric meter area, and the electric meter area comprises an ammeter and a voltmeter.

In one possible design, the circuit element includes at least two bulbs, at least two switches, at least three fixed resistors with different resistances, at least three resistance wires made of different materials, and at least one rheostat.

In one possible design, a second circuit board is arranged in the case cover, an expansion area is arranged on the second circuit board, and the expansion area comprises one or more of at least a toggle switch, a light-emitting diode, a motor, a buzzer and a photoresistor.

Correspondingly, an accessory area is arranged on the second circuit board and used for accommodating plug-in type wires matched with the inserting piles.

In one possible design, the first and second circuit boards are transparent acrylic boards. Through the circuit board that adopts transparent ya keli board to set up, can directly see the circuit connection condition, conveniently inspect the circuit.

In one possible design, one edge of the first circuit board is connected with the box body through a hinge; one edge of the second circuit board is connected with the box cover through a hinge.

In one possible design, two convex parts are symmetrically arranged at the nut of the bolt.

In one possible design, the housing is made of plastic.

Has the advantages that:

1. the utility model directly installs the circuit element on the circuit board, and when in use, the whole testing device is directly provided, so that the equipment required by the test can be provided, and the preparation and acceptance are convenient; in addition, through arranging the porous circuit board, the circuit element is fixed by penetrating the mounting assembly into the mounting hole, the position of the element is conveniently adjusted according to an experiment, the first circuit board is rotatably connected with the box body, and when the circuit board is adjusted, the first circuit board is directly turned over, the mounting assembly can be disassembled and assembled from the lower part of the circuit board, so that the circuit board is convenient and practical, and the problems that the existing middle school students have more electrical experiments, more electrical elements, more devices are selected and prepared in each experiment teaching process, and the element is easily lost and damaged are solved;

2. through the circuit board that adopts transparent ya keli board to set up, can directly see the circuit connection condition, conveniently inspect the circuit.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of the structure of the box body of the present invention.

Fig. 2 is a schematic structural diagram of the mounting assembly of the present invention.

The reference numbers in the figures are:

1-box body, 2-box cover, 3-first circuit board, 4-bolt, 5-nut, 6-gasket, 7-inserting pile, 8-power supply area, 9-expanding area, 10-accessory area, 11-plug-in type wire and 12-second circuit board.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments of the present invention.

As shown in fig. 1 and 2, the junior middle school electrical experiment teaching device provided by the invention comprises a box body 1 and a box cover 2, wherein a first circuit board 3 is arranged in the box body 1, and the first circuit board 3 is rotatably connected with the box body 1; a plurality of circuit elements for experiments are detachably arranged on the first circuit board 3; the circuit element is mounted through a mounting assembly; a plurality of mounting holes (not shown) are uniformly formed in the first circuit board 3, and the mounting assembly penetrates through the mounting holes to fix the circuit element; the mounting assembly comprises a bolt 4, and a nut 5 and a gasket 6 which are mounted on the bolt 4; the end of the bolt 4 is provided with a peg 7. The circuit elements are directly arranged on the circuit board, so that the whole testing device can be directly provided to provide equipment required by the test in practical use, and the preparation and acceptance are convenient; in addition, through setting up the porous circuit board, adopt the installation component to run through fix circuit element in the mounting hole, conveniently adjust the component position according to the experiment, first circuit board with the box rotates to be connected, during the regulation, directly overturns first circuit board, can follow the circuit board below and carry out the dismouting to the installation component, convenient and practical solves current middle school student's electricity experiment many, and electrical component is many, carries out the chooseing for use of equipment, prepares comparatively troublesome when experimental teaching at every turn, causes the loss of component and problem of damage easily.

In a possible embodiment, a power supply area 8 is arranged on the first circuit board 3, the power supply area 8 comprises three No. 5 battery boxes, the battery boxes are externally connected with three external connecting posts, a positive connecting post and two negative connecting posts, and the two negative connecting posts respectively provide 3V voltage and 4.5V voltage.

In a possible embodiment, the first circuit board 3 is provided with an electric meter area, and the electric meter area comprises an ammeter and a voltmeter.

In a possible embodiment, the circuit element comprises at least two bulbs and at least two switches, and can complete the composition experiment of series and parallel circuits, and the resistance (electric power) experiment of the bulbs can be completed by combining the circuit element with an ammeter and a rheostat; at least three fixed value resistors with different resistance values, for example, the fixed value resistors are composed of three fixed value resistors, the resistance values are respectively 5 Ω, 10 Ω and 20 Ω, and the fixed value resistors can be used for researching the relation between the current in the conductor and the voltage at the two ends of the conductor and the resistance of the conductor; at least three resistance wires made of different materials, for example, three resistance wires, which are respectively a nichrome wire with a length of 2L and a length of 2S, and a manganese copper wire with a length of L and a cross section of S, are used for researching the relationship between the resistance of the conductor and the material, length and cross section area of the conductor; at least one varistor. As shown in fig. 1, in a specific implementation, a second circuit board is disposed in the case cover 2, an expansion area 9 is disposed on the second circuit board, and the expansion area 9 includes at least one or more of a toggle switch, a light emitting diode, a motor, a buzzer, and a photo resistor. Accordingly, in the specific embodiment, an attachment area 10 is provided on the second circuit board, which is used to accommodate a plug-in type conductor 11 that is matched to the plug-in type 7.

In one possible embodiment, the first circuit board 3 is a transparent acrylic board.

In specific implementation, one edge of the first circuit board 3 is connected with the box body 1 through a hinge; one edge of the second circuit board 12 is connected to the case lid 2 by a hinge.

In specific implementation, two convex parts are symmetrically arranged at the nut of the bolt 4. Convenient for free-hand rotation. Specifically, two ends of the circuit element are connected with a red socket and a black socket which are used as positive and negative terminals of the element, so that the circuit is convenient for students to assemble. The circuit board is provided with a fixing screw, the circuit board is fixed in the box and can be detached when the element needs to be replaced.

In a specific implementation, the box 1 is made of plastic, for example, with a gauge of 38 × 27 × 7 (lid height 2 and box height 5).

The device has the advantages that:

1. the circuit elements are combined in a modular mode and fixed on a circuit board to form different experimental units, and the primary and secondary physics electrical experiment is satisfied in a one-stop mode.

2. The integrated circuit board integrates all the electrical experiments, and a comprehensive platform for the electrical experiments is formed, so that the electrical experiments are simpler, more convenient and faster.

3. The experimental development area is arranged, students can develop research experiments and verification experiments in aspects on the basis of completing necessary experiments, the difficulty of exercise teaching is favorably overcome, extraclass practice activities of the students are enriched, and the innovative experimental capability is improved.

4. The electrical elements are concentrated on one circuit board, so that the preparation of experiments and the storage of equipment are simpler, the labor amount of an experiment teacher is reduced, the equipment is not easy to lose and damage, and the experiment cost is reduced.

5. The integrated circuit board is more convenient to carry, is beneficial to the school to carry out the extracurricular experiment activities, is particularly suitable for the rural middle schools to carry out the family electricity experiment activities, and improves the experiment manipulative ability of students.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A junior middle school electricity experiment teaching device is characterized by comprising a box body (1) and a box cover (2), wherein a first circuit board (3) is arranged in the box body (1), and the first circuit board (3) is rotatably connected with the box body (1); a plurality of circuit elements for experiments are detachably arranged on the first circuit board (3); the circuit element is mounted through a mounting assembly; a plurality of mounting holes are uniformly formed in the first circuit board (3), and the mounting components penetrate through the mounting holes to fix the circuit elements; the mounting assembly comprises a bolt (4), and a nut (5) and a gasket (6) which are mounted on the bolt (4); and the end part of the bolt (4) is provided with an inserting pile (7).

2. The junior middle school electricity experiment teaching device of claim 1, wherein the first circuit board (3) is provided with a power supply area (8), the power supply area (8) comprises three 5-size battery boxes, the battery boxes are externally connected with three external connecting posts, a positive connecting post and two negative connecting posts, and the two negative connecting posts respectively provide 3V and 4.5V voltages.

3. The junior middle school electrical experiment teaching device according to claim 1, wherein an electric meter area is arranged on the first circuit board (3), and the electric meter area comprises an ammeter and a voltmeter.

4. The teaching device for junior middle school electrical experiments according to claim 1, wherein the circuit elements comprise at least two bulbs, at least two switches, at least three fixed value resistors with different resistance values, at least three resistance wires made of different materials and at least one rheostat.

5. A junior middle school electrical experiment teaching device according to claim 1, characterized in that a second circuit board (12) is provided in the case lid (2), an expansion area (9) is provided on the second circuit board, the expansion area (9) comprises at least one or more of a toggle switch, a light emitting diode, a motor, a buzzer and a photoresistor.

6. A junior middle school electrical experiment teaching device according to claim 5, wherein an attachment area (10) is provided on the second circuit board (12) for receiving a plug-in type wire (11) matching the stake (7).

7. The junior middle school electrical experiment teaching device according to claim 5, wherein the first wiring board (3) and the second wiring board (12) are transparent acrylic boards.

8. The junior middle school electrical experiment teaching device according to claim 1, wherein one edge of the first circuit board (3) is connected with the box body (1) through a hinge; one edge of the second circuit board (12) is connected with the box cover (2) through a hinge.

9. The junior middle school electrical experiment teaching device according to claim 1, wherein two convex parts are symmetrically arranged at the nut of the bolt (4).

10. A junior middle school electrical experiment teaching device according to claim 1, wherein said case (1) is made of plastic.