An interactive teaching device for facilitating teaching

Abstract

The utility model relates to the field of teaching aids, especially point to a kind of interactive teaching device of convenient teaching, and teaching device includes teaching board and is located on the power connection post, switch, lamps and lanterns and resistor of teaching board, and power connection post, switch, lamps and lanterns and resistor form electric circuit.In use, connecting seat is placed on fixed seat, second magnetic interface and first magnetic interface magnetism attract each other to make two movable contacts and two fixed contacts contact, and resistance is quickly connected into electric circuit.When power is on and switch is closed, current flows through resistor and lamps and lanterns, and drives lamps and lanterns to emit light.Then by replacing the connecting seat of different resistance value resistor to fixed seat, to change the resistance value of resistor, so that students can intuitively understand ohm law, power calculation and other basic electrical knowledge.The utility model adopts the mode of magnetic attraction, realizes the quick, stable switching of resistance, and efficiency is high, it is convenient for teaching use, and resistance pin will not be damaged, guarantee experimental data accuracy.

Description

Technical Field

[0001] This utility model relates to the field of teaching aids, and in particular to an interactive teaching device that facilitates teaching. Background Technology

[0002] In the teaching of circuit theory and practice, Ohm's Law is one of the fundamental core contents. To help students intuitively understand the effect of resistance on circuit current, teachers often use interactive teaching methods, that is, building simple circuits and observing the change in the brightness of the light bulb by changing the resistor with different values ​​to verify the inverse relationship between current and resistance.

[0003] Specifically, a resistor of a fixed specification is connected to the circuit via wires or plug-in connections. After power is applied, the brightness of the bulb or the ammeter reading is recorded. Then, the power is disconnected, and a different resistor is manually replaced, and the experiment is repeated. However, this traditional method requires power disconnection, disassembly, and reassembly each time a resistor is replaced. Each experimental cycle is too time-consuming, affecting the pace of the class. Furthermore, frequent plugging and unplugging can easily cause deformation of the resistor leads or loosening of the connection, introducing contact resistance and affecting the accuracy of the experimental data. Utility Model Content

[0004] In view of the shortcomings mentioned above, this utility model provides an interactive teaching device that facilitates teaching.

[0005] The present invention adopts the following technical solution: An interactive teaching device for convenient teaching includes a teaching board and power terminals, a switch, a lamp, and a resistor disposed on the teaching board. The power terminals, switch, lamp, and resistor form an electrical circuit, and the power terminals are connected to an external power source to power the switch, lamp, and resistor. The resistor comprises: A fixed base is fixed to the teaching board, and the fixed base is provided with two fixed contacts, which are connected to an electrical circuit. A connector is provided with two moving contacts and a resistor, the two ends of which are electrically connected to the two moving contacts. The fixed base is provided with a first magnetic contact portion, and the connecting base is provided with a second magnetic contact portion. After the connecting base is placed on the fixed base, the second magnetic contact portion and the first magnetic contact portion are magnetically attracted, and the two moving contacts are in contact with the two fixed contacts, so that the resistor is connected to the electrical circuit.

[0006] As a further improvement, the lamp includes a detachably connected lamp holder and a bulb, the lamp holder being mounted on the teaching board and the bulb being connected to an electrical circuit through the lamp holder.

[0007] As a further improvement, the teaching device also includes legs, with legs provided on both sides of the bottom of the teaching board, and the legs are detachably connected to the teaching board.

[0008] As a further improvement, the support leg is provided with a mounting slot for inserting the teaching board.

[0009] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages: In use, the connector is placed on the fixed base, at which point the second magnetic contact and the first magnetic contact magnetically engage, thereby bringing the two moving contacts into contact with the two fixed contacts, quickly connecting the resistor into the electrical circuit. When the power is turned on and the switch is closed, current flows through the resistor and the lamp, driving the lamp to emit light. Then, by replacing the connector with a resistor of different values ​​on the fixed base, the resistance value of the resistor can be changed, allowing students to intuitively understand basic electrical knowledge such as Ohm's law and power calculation. This utility model uses a magnetic engagement method to achieve rapid and stable switching of the resistor, which is highly efficient, convenient for teaching, and will not damage the pins of resistor 53, ensuring the accuracy of experimental data. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0011] Figure 2 This is a schematic diagram of the three-dimensional structure of a resistor.

[0012] Figure 3 This is a partial three-dimensional structural diagram of the present invention.

[0013] Figure 4 for Figure 3 An enlarged diagram of A in the diagram.

[0014] Figure 5 This is a three-dimensional structural diagram of the connector and resistor.

[0015] Figure 6 This is a three-dimensional structural diagram of the connector and the wire.

[0016] Figure 7 This is a schematic diagram showing the exploded structure of the teaching board and its legs. Detailed Implementation

[0017] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0018] As attached Figure 1As shown, an interactive teaching device facilitates instruction. This device includes a teaching board 1 and integrated power terminals 2, a switch 3, a lamp 4, and a resistor 5. These components are interconnected through a logical circuit layout to form a complete electrical circuit, allowing teachers to visually demonstrate the circuit's working principle while facilitating hands-on operation and learning for students. Specifically, the teaching board 1 is made of high-strength insulating material, with clear circuit diagrams and component labels printed on its surface to aid student understanding of the circuit structure. The power terminals 2 are located at the edge of the teaching board 1 and feature a standard terminal block design, allowing for external DC or low-voltage AC power (such as laboratory power supplies or battery packs) to provide stable power to the entire circuit. The switch 3 is a toggle or push-button switch, allowing teachers or students to manually control the circuit's on / off state. The lamp 4, as the circuit's load element, directly reflects the circuit's operating status when it is on or off.

[0019] In terms of circuit connection, the power terminal 2, switch 3, lamp 4, and resistor 5 are connected in series or parallel via wires (which can be flexibly adjusted according to teaching needs) to form a complete closed loop. When the power is turned on and switch 3 is closed, current flows through resistor 5 and lamp 4, driving lamp 4 to emit light. By changing the resistance value of resistor 5, students can intuitively understand basic electrical knowledge such as Ohm's law and power calculation.

[0020] As attached Figures 2 to 6 As shown, resistor 5 includes a fixed base 51 and a connecting base 52. The fixed base 51 is fixed to the teaching board 1 and has two fixed contacts 511 connected to the electrical circuit. The connecting base 52 has two moving contacts 521 and a resistor 53, with the two ends of the resistor 53 electrically connected to the two moving contacts 521. In use, the connecting base 52 is placed on the fixed base 51, so that the two moving contacts 521 contact the two fixed contacts 511, thereby connecting the resistor 53 to the electrical circuit. The resistance value of resistor 5 can be changed by replacing the connecting base 52 with resistors 53 of different values ​​on the fixed base 51, thus verifying Ohm's law. When the resistor 53 on resistor 5 is replaced with a wire 54, the resistance of resistor 5 is essentially zero, ensuring the electrical circuit is connected without affecting the brightness of lamp 4, improving the accuracy of experimental data. Preferably, the fixed base 51 has a first magnetic contact 512, and the connecting base 52 has a second magnetic contact 522. After the connector 52 is placed on the fixed base 51, the second magnetic contact 522 and the first magnetic contact 512 magnetically engage, thereby stably placing the connector 52 on the fixed base 51, so that the two moving contacts 521 and the two fixed contacts 511 are in stable contact, and the resistor 53 is quickly connected to the electrical circuit.

[0021] Further details are attached. Figure 2As shown, the lamp 4 includes a detachably connected lamp holder 41 and a bulb 42. The lamp holder 41 is mounted on the teaching board 1, and the bulb 42 is connected to the electrical circuit through the lamp holder 41. In use, the bulb 42 is screwed onto the lamp holder 41 and connected to the circuit. When not in use, the bulb 42 can be removed to better protect it, thereby extending its lifespan and facilitating replacement and maintenance.

[0022] As attached Figure 7 As shown, the teaching device also includes support legs 6. Support legs 6 are located on both sides of the bottom of the teaching board 1, and are detachably connected to the teaching board 1. Specifically, the support legs 6 have mounting grooves 61 for inserting the teaching board 1. After the teaching board 1 is inserted into the mounting grooves 61, the two support legs 6 support the teaching board 1, allowing it to stand upright. When the teaching board 1 is detached from the mounting grooves 61, it can be laid down for use. This adapts to different usage environments and improves the practicality of the teaching board 1.

[0023] In summary, when using this invention, the connector 52 is placed on the fixed base 51. At this time, the second magnetic contact 522 and the first magnetic contact 512 magnetically engage, thereby bringing the two moving contacts 521 into contact with the two fixed contacts 511, quickly connecting the resistor 53 into the electrical circuit. When the power is on and the switch 3 is closed, current flows through the resistor 5 and the lamp 4, driving the lamp 4 to emit light. Then, by replacing the connector 52 with a resistor 53 of different values ​​on the fixed base 51, the resistance value of the resistor 5 can be changed, allowing students to intuitively understand basic electrical knowledge such as Ohm's law and power calculation. This invention uses a magnetic engagement method to achieve rapid and stable switching of the resistor 53, which is highly efficient, convenient for teaching, and will not damage the leads of the resistor 53, ensuring the accuracy of experimental data.

[0024] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. An interactive teaching device for convenient teaching, comprising a teaching board and power terminals, a switch, a lamp, and a resistor disposed on the teaching board, wherein the power terminals, switch, lamp, and resistor form an electrical circuit, and the power terminals are connected to an external power source to supply power to the switch, lamp, and resistor, characterized in that, The resistor includes: A fixed base is fixed to the teaching board, and the fixed base is provided with two fixed contacts, which are connected to an electrical circuit. A connector is provided with two moving contacts and a resistor, the two ends of which are electrically connected to the two moving contacts. The fixed base is provided with a first magnetic contact portion, and the connecting base is provided with a second magnetic contact portion. After the connecting base is placed on the fixed base, the second magnetic contact portion and the first magnetic contact portion are magnetically attracted, and the two moving contacts are in contact with the two fixed contacts, so that the resistor is connected to the electrical circuit.

2. The interactive teaching device for facilitating teaching as described in claim 1, characterized in that: The lamp includes a detachably connected lamp holder and a bulb. The lamp holder is mounted on the teaching board, and the bulb is connected to the electrical circuit through the lamp holder.

3. The interactive teaching device for facilitating teaching as described in claim 1, characterized in that: The teaching device also includes legs, with legs provided on both sides of the bottom of the teaching board, and the legs are detachably connected to the teaching board.

4. The interactive teaching device for facilitating teaching as described in claim 3, characterized in that: The support legs are provided with mounting slots for inserting the teaching board.

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