Demonstration device for self-assembled analog circuit experiment

Abstract

The utility model discloses a self-assembled demonstration device for an analog circuit experiment, which belongs to the technical field of physics teaching appliances and comprises an analog component, two ends of the analog component are communicated with a water storage device through pipelines, an external opening of the water storage device is provided with an insertion sheet, an opening on one side inside the water storage device is provided with a water pump, and the water pump is connected with the simulation component through a pipeline. A water flow simulation demonstration circuit is formed. Water flow and each electrical element which can be visually observed are used for simulating the process that charges flow through a wire, students are helped to understand the essence of a circuit from essence, the working principle and the change process of each element of an electrical part such as a resistor, a capacitor and an inductor are experienced, and meanwhile fluid mechanics teaching can be carried out.

Description

Technical Field

[0001] The utility model belongs to the technical field of physics teaching tools and relates to a self-assembled demonstration device for simulating circuit experiments. Background Art

[0002] In the process of physics teaching, the electricity part is a crucial part, which can not only help students learn basic knowledge, but also cultivate students' logical thinking ability. However, the teaching content of this part is relatively abstract and lacks intuitiveness. Students need to use certain imagination to construct intuitive models of physical phenomena and form a deep understanding of physical knowledge.

[0003] At present, electrical experiments can be used to promote electrical teaching. However, when conducting electrical experiments, the process of how the various physical quantities change during the experiment is often not intuitive. Students only observe the results, and cannot display the changes of the various physical quantities in the circuit to help students better understand the nature of the circuit. At the same time, the existing current simulation devices simulate relatively single components and electrical phenomena, and can only simulate current, voltage, and power supply, and cannot be applied to the teaching of multiple components and working principles. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the utility model provides a self-assembled demonstration device for simulating circuit experiments, which utilizes intuitively observable water flow and various electrical components to simulate the process of charge flowing through a wire, helping students to understand the essence of the circuit, and appreciate the working principles and changing processes of various components of the electrical part, while also being able to teach fluid mechanics.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A self-assembled demonstration device for simulated circuit experiments comprises simulated components, both ends of which are connected to a water reservoir through pipes, an insert is provided at the external opening of the water reservoir, and a water pump is provided at the opening on one side of the interior of the water reservoir, forming a water flow simulation demonstration circuit.

[0007] According to a further technical solution, the analog component may be one of a small light bulb, a resistor, a capacitor and an inductor.

[0008] A further technical solution is that when the simulation component is a small light bulb, a water flow simulation demonstration circuit including electrical appliances is formed.

[0009] A further technical solution is that the water flow simulation demonstration circuit containing electrical appliances specifically includes: an electric fan is connected to the bottom of the small light bulb, the electric fan is placed in a pipe, the electric fan is connected to both ends of the water reservoir through the pipe, plugs are provided in the pipes at the openings on both sides of the outside of the water reservoir, and a water pump is provided at one opening inside the water reservoir to form a water flow path.

[0010] According to a further technical solution, when the analog component is a resistor, a water flow simulation demonstration circuit containing a resistor is formed.

[0011] A further technical solution is that the water flow simulation demonstration circuit containing a resistor specifically includes: both ends of the resistor tube are connected to pipes respectively, which are connected to both ends of the water reservoir through the pipes at both ends, plugs are arranged in the pipes at the openings on both sides of the outside of the water reservoir, and a water pump is arranged at one opening inside the water reservoir to form a water flow path.

[0012] According to a further technical solution, when the analog component is a capacitor, a water flow simulation demonstration circuit containing a capacitor is formed.

[0013] A further technical solution is that the water flow simulation demonstration circuit containing a capacitor specifically includes: the openings of the water reservoir with openings at both ends are connected to the opening of the water reservoir with an opening at one end through pipes, plugs are arranged in the pipes at the external openings of the water reservoir, and a water pump is arranged at at least one opening inside the water reservoir.

[0014] According to a further technical solution, when the analog component is an inductor, a water flow simulation demonstration circuit containing an inductor is formed.

[0015] A further technical solution is that the water flow simulation demonstration circuit containing an inductor specifically includes: a water wheel simulation inductor is arranged in a glass box, the openings on both sides of the glass box are connected to the openings at both ends of the water reservoir through pipes, plugs are arranged in the pipes at the openings on both sides of the outside of the water reservoir, and a water pump is arranged at one opening inside the water reservoir to form a water flow path.

[0016] Beneficial effects of the utility model:

[0017] The utility model provides a self-assembled demonstration device for simulating circuit experiments, which utilizes water flow and various electrical components that can be observed visually to simulate the process of electric charge flowing through a conductor, thereby helping students to understand the essence of the circuit, appreciate the working principles and changing processes of various electrical components such as resistors, capacitors, and inductors, and also can teach fluid mechanics.

[0018] In addition to being used in school teaching, the utility model can also be used in science exhibition halls and as a scientific toy for people of all ages to understand the implementation of electricity in daily life.

[0019] The utility model is different from similar demonstration products which only demonstrate the results of a single experiment. The demonstration device can comprehensively demonstrate the basic experiments of the electrical experiment, making up for the shortcomings of the demonstration system of the electrical experiment. The system device is concise, with scientific principles, popular science concepts and intuitive phenomena. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0021] Figure 1 A schematic diagram of a demonstration circuit simulating an electrical appliance in an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of a demonstration circuit simulating a resistor in an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of a demonstration circuit simulating a capacitor according to an embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of a demonstration circuit simulating an inductor according to an embodiment of the present utility model.

[0025] Among them, 1-a water tank with openings at both ends, 2-a water pump, 3-a plug, 4-a pipe, 5-a light bulb, 6-a resistor tube, 7-a water tank with an opening at one end, and 8-a glass box. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Terminology explanation:

[0028] Power supply: A power supply is a device that converts other forms of energy into electrical energy and provides electrical energy to circuits (electronic devices).

[0029] Electric current: The regular and directional movement of charged particles in a substance forms an electric current.

[0030] Voltage: also known as potential difference or electric potential difference, is a physical quantity that measures the energy difference caused by different electric potentials of unit charges in an electrostatic field.

[0031] Resistors: Resistors are a component that blocks the flow of electric current. Their size is related to the properties, thickness, and length of the material.

[0032] Capacitor: A capacitor is a device that can store energy in the form of an electric charge. A capacitor is made up of two metal plates separated by an insulating material called a dielectric.

[0033] Inductance: Inductance is a property of a closed loop and is a physical quantity. When current passes through a coil, a magnetic field is formed in the coil to resist the current passing through the coil, and when the current in the circuit decreases, it will retain the current in the circuit.

[0034] Principles of fluid mechanics: Fluid is a substance that can flow. It is an object that will continuously deform under any small shear force. Fluid is composed of countless fluid micro-groups. These fluid particles are in close contact with each other without gaps, and continuously fill the entire flow area. The volume of fluid flowing through a certain pipe per unit time is called the volume flow rate of the cross section, or simply flow rate. The speed of the fluid is called flow velocity. Factors that affect the flow velocity include pipe diameter, resistance in the pipe, etc.

[0035] The basic principle of circuit: A circuit is an electric current path that is connected in a certain way by a series of electrical devices and wires in order to complete a certain function. It includes power supplies, switches, electrical appliances, resistors, capacitors, inductors, wires, etc. When the circuit is a path, the current is generated by the power supply, and flows through wires, switches, etc., through resistors, electrical appliances and other devices.

[0036] Embodiment 1

[0037] The embodiment of the utility model provides a demonstration device for a self-assembled simulated circuit experiment, including simulated components, both ends of which are connected to a water reservoir 1 through a pipe 4, an insert 3 is provided at the external opening of the water reservoir 1, and a water pump 2 is provided at the opening on one side of the inside of the water reservoir 1, forming a water flow simulation demonstration circuit.

[0038] In the demonstration device of this embodiment, a water pump 2 is used and an external water storage tank 1 is used as a power source; a pipe 4 is used as a conductor; a plug 3 that can be inserted or removed is set in the pipe 4 to act as a switch; the pipe 4 with a mesh at both ends acts as a resistor, and the connecting part of the mesh can be opened to load different objects or change the number of objects to simulate different resistance sizes.

[0039] In the demonstration device of this embodiment, the simulated electrical phenomenon is specifically as follows: a small fan is arranged in the pipe 4, and when water flows through it, rotation can be generated. The fan is connected to a small light bulb 5, and the small light bulb 5 is illuminated by the power of the fan, so as to demonstrate that when water flows through the small light bulb 5, a luminous phenomenon is generated; small boxes for storing water at both ends each have a small pump built in to demonstrate the charging and discharging process of the capacitor; a glass box 8 equipped with a water wheel is used to simulate the process of inductive resistance and obstruction of current disconnection.

[0040] The pipe 4 is divided into two-way, three-way and four-way pipes 4, which is convenient for students to assemble circuits according to their needs. Preferably, the pipe 4 can be a glass pipe or a water pipe. The pipe 4 with a net at both ends can be filled with different objects or the number of objects can be changed to change the resistance. Preferably, three materials are provided in this embodiment, namely stones, sand and plastic balls, for simulating different resistances.

[0041] Preferably, the small bulb 5 can be replaced with a running water lamp for experiment, and the pipe 4 can use a hose to control the flow of water. Each original component can be slightly changed on this basis, and technicians in this field can make choices according to actual conditions.

[0042] The above components can be disassembled and assembled, and can be connected and disassembled with snaps. Students can simulate the working principles and current flows of each component by assembling and disassembling the components, and then simulate the circuit to help students observe directly and deepen their understanding.

[0043] The above demonstration device is set up using the principles of fluid mechanics and the basic principles of circuits, and uses water flow and various water flow elements to simulate electrical experiments. Similar to the water flow formed by water flowing in a water pipe, the directional movement of electricity in a wire will also form an electric current. The difference in water level is called water pressure, and water pressure is the reason for the directional flow of water. In other words, water pressure causes water flow in the water pipe. The flow of water can make equipment such as turbines work. In an analog circuit, electrical appliances work because there is current flowing, just like the water flow in a water pipe. The power supply is a device that provides voltage. When the switch is closed, the voltage causes the free charge to move in a directional manner. The flow of charge in the circuit is current, and the current moves from high potential to low potential. The power supply in the circuit is equivalent to a pump, the switch is equivalent to a valve, the current is equivalent to water flow, and the electrical appliance is equivalent to a turbine.

[0044] This demonstration device uses water flow to intuitively show the direction of current in the circuit and its working components. It also demonstrates the internal principles of electrical components through various water flow components, intuitively showing the difficult-to-observe phenomenon of current, making it easier for people to understand.

[0045] In this embodiment, the analog component may be one of a small light bulb 5, a resistor, a capacitor and an inductor.

[0046] In this embodiment, if Figure 1 As shown, when the simulation component is a small light bulb 5, a water flow simulation demonstration circuit containing electrical appliances is formed to simulate the process of supplying power to the electrical appliances.

[0047] The water flow simulation demonstration circuit containing electrical appliances specifically includes: a small light bulb 5 is connected to an electric fan at the bottom, the electric fan is placed in a pipe 4, the electric fan is connected to both ends of a water reservoir 1 through the pipe 4, plugs 3 are arranged in the pipe 4 at the openings on both sides of the outside of the water reservoir 1, and a water pump 2 is arranged at an opening on one side of the inside of the water reservoir 1 to form a water flow path.

[0048] In this embodiment, each component uses a two-way, three-way, or four-way tube to connect the circuit in series and in parallel. At this time, the circuit is a passage.

[0049] The simulation process is specifically as follows: when the plugs 3 arranged in the pipes 4 on both sides of the water storage tank 1 are opened, water flows through the pipes 4 and passes through the electric fan, and the power of the electric fan drives the small light bulb 5 to emit light, to demonstrate the phenomenon of light generation when current flows through the small light bulb 5.

[0050] The demonstration device for simulating circuit experiments in this embodiment is intuitive, and the water flow can vividly simulate the working state of the current in the circuit, helping students to directly observe and deepen their understanding; it is scientific. From the perspective of physical equations (or heat and mass transfer equations), the current is also a mass transfer phenomenon controlled by conservation equations. The current can be regarded as a charged fluid, so it is feasible to use water flow to simulate simple circuits; the materials are diverse. In terms of material selection, it is based on life, and common glass tubes, small electric fans, small light bulbs 5 and other equipment in life are selected, which makes the experiment more feasible; it is easy to operate and safe. The snap-on experimental equipment is easy to operate and easy for students to use. Compared with electric current, water flow is safer and suitable for students of all ages.

[0051] Embodiment 2

[0052] In this embodiment, a demonstration device for a self-assembled simulated circuit experiment is provided, including simulated components, both ends of which are connected to a water reservoir 1 through a pipe 4, a plug 3 is provided at the external opening of the water reservoir 11, and a water pump 2 is provided at the opening on one side of the inside of the water reservoir 1, forming a water flow simulation demonstration circuit.

[0053] In this embodiment, if Figure 2 As shown, when the analog component is a resistor, a water flow simulation demonstration circuit containing a resistor is constructed to simulate the phenomenon of current when there is a resistor in the circuit.

[0054] The water flow simulation demonstration circuit containing resistors specifically includes: the two ends of the resistor tube 6 are respectively connected to the pipes 4, which are connected to the two ends of the water reservoir 1 through the pipes 4 at both ends, and the pipes 4 at both ends are provided with plugs 3 at the pipes 4 at the openings on both sides of the outside of the water reservoir 1, and a water pump 2 is provided at one opening inside the water reservoir 1 to form a water flow path.

[0055] In this embodiment, each component uses a two-way, three-way, or four-way tube to connect the circuit in series and in parallel. At this time, the circuit is a passage.

[0056] The simulation process is as follows: after assembling and connecting the water flow paths, students can simulate changing the size of the resistance by changing the number and size of sand and plastic balls in the pipe 4 with meshes at both ends. At the same time, by observing the phenomenon of water flowing through obstacles with different resistances, students can experience the obstruction of different resistance values ​​to the current.

[0057] Embodiment 3

[0058] In this embodiment, a demonstration device for a self-assembled simulated circuit experiment is provided, including simulated components, both ends of which are connected to a water reservoir 1 through a pipe 4, a plug 3 is provided at the external opening of the water reservoir 1, and a water pump 2 is provided at the opening on one side of the inside of the water reservoir 1, forming a water flow simulation demonstration circuit.

[0059] In this embodiment, if Figure 3 As shown, when the simulated component is a capacitor, two water reservoirs 7 with one end open are used to simulate the capacitor, forming a water flow simulation demonstration circuit containing a capacitor, which is used to simulate the charging and discharging process of the capacitor.

[0060] In this embodiment, the water flow simulation demonstration circuit containing a capacitor specifically includes: the openings of the water reservoir 1 with openings at both ends are connected to the opening of the water reservoir 7 with an opening at one end through pipes 4, plugs 3 are provided in the pipes 4 at the external openings of the water reservoir, and a water pump 2 is provided at at least one opening inside the water reservoir.

[0061] The water flow simulation demonstration circuit containing capacitors is provided with two water reservoirs 7 with one end open, and the demonstration circuit is not a complete connected loop. Due to the working properties of the capacitor, the connection mode of pipe series and parallel connection cannot be adopted. When simulating the charging and discharging process of the capacitor, the circuit is open. Therefore, when conducting the simulation experiment, special attention should be paid to connecting the water reservoirs 7 with one end open at both ends to the positive and negative poles of the switch respectively, so that the basic law of the circuit is satisfied.

[0062] The simulation process is specifically as follows: a water tank 7 with an opening at one end is used to simulate a capacitor. Initially, the water tanks 7 with an opening at one end on both sides are empty. The switch simulated by the plug board is turned on, and water flows to the water tanks 7 on both sides to store water to simulate the charging process of the capacitor. Based on the above charging process, the water tank is full of water. At this time, the capacitor water tank is connected to the electrical appliance, and the water in the tank is pumped out by the water pump 2, thereby driving the electrical appliance to work and simulating the charging and discharging process of the capacitor. In other words, the capacitor water tank itself consists of two left and right sub-tanks, which are not connected to simulate the two sides of the capacitor. When charging, the two sub-tanks are filled with water, simulating that a lot of charges are accumulated on both sides of the capacitor when charging. When discharging, the water in the two sub-tanks will be discharged, simulating that the charges accumulated on both sides of the capacitor are discharged.

[0063] Embodiment 4

[0064] In this embodiment, a demonstration device for a self-assembled simulated circuit experiment is provided, including simulated components, both ends of which are connected to a water reservoir 1 through a pipe 4, a plug 3 is provided at the external opening of the water reservoir 1, and a water pump 2 is provided at the opening on one side of the inside of the water reservoir 1, forming a water flow simulation demonstration circuit.

[0065] In this embodiment, if Figure 4 As shown, when the analog component is an inductor, a water flow simulation demonstration circuit containing an inductor is constructed to simulate the working principle of the inductor.

[0066] The water flow simulation demonstration circuit containing an inductor specifically includes: a water wheel simulation inductor is set in a glass box 8, and the openings on both sides of the glass box 8 are connected to the openings at both ends of the water reservoir 1 through pipes 4, and plugs 3 are set in the pipes 4 at the openings on both sides of the outside of the water reservoir 1, and a water pump 2 is set at one opening inside the water reservoir 1 to form a water flow path.

[0067] In the water flow simulation demonstration circuit containing an inductor, the openings on both sides of the glass box 8 are upper and lower openings, one opening is located at the upper end of the glass box 8, and the other opening is located at the lower end of the glass box 8; the openings at both ends of the water storage container 1 are horizontal openings.

[0068] In this embodiment, each component uses a two-way, three-way, or four-way tube to connect the circuit in series and in parallel. At this time, the circuit is a passage.

[0069] The simulation process is as follows: when the switch is closed, it can be found that water flows into the water tank, and the water wheel resists the water flow. Under the action of continuous water flow, the water wheel will slowly adapt to the force of the water flow on the water wheel and basically achieve uniform rotation. When the water flow in the water pipe becomes smaller, the water wheel will have a retention effect on the reduced water flow due to its inertia, thereby simulating the working principle of the inductor.

[0070] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A self-assembled demonstration device for a simulated circuit experiment, characterized in that: It includes simulation components, both ends of which are connected to a water reservoir through pipes, an insert is provided at the external opening of the water reservoir, and a water pump is provided at the opening on one side of the inside of the water reservoir, forming a water flow simulation demonstration circuit.

2. A self-assembled demonstration device for analog circuit experiment as claimed in claim 1, characterized in that: The analog component may be one of a small light bulb, a resistor, a capacitor and an inductor.

3. A self-assembled simulation circuit experiment demonstration device as claimed in claim 2, characterized in that: When the simulation component is a small light bulb, a water flow simulation demonstration circuit including electrical appliances is formed.

4. A self-assembled simulation circuit experiment demonstration device as claimed in claim 3, characterized in that: The water flow simulation demonstration circuit containing electrical appliances specifically includes: an electric fan is connected to the bottom of a small light bulb, the electric fan is placed in a pipe, the electric fan is connected to both ends of a water reservoir through the pipe, plugs are arranged in the pipes at the openings on both sides of the outside of the water reservoir, and a water pump is arranged at an opening on one side of the inside of the water reservoir to form a water flow path.

5. A self-assembled simulation circuit experiment demonstration device as claimed in claim 2, characterized in that: When the analog component is a resistor, a water flow simulation demonstration circuit containing a resistor is formed.

6. A self-assembled simulation circuit experiment demonstration device as claimed in claim 5, characterized in that: The water flow simulation demonstration circuit containing a resistor specifically includes: both ends of the resistor tube are connected to pipes respectively, which are connected to both ends of the water reservoir through the pipes at both ends, plugs are arranged in the pipes at the openings on both sides of the outside of the water reservoir, and a water pump is arranged at one opening inside the water reservoir to form a water flow path.

7. A self-assembled simulation circuit experiment demonstration device as claimed in claim 2, characterized in that: When the analog component is a capacitor, a water flow simulation demonstration circuit containing a capacitor is formed.

8. A self-assembled demonstration device for analog circuit experiment as claimed in claim 7, characterized in that: The water flow simulation demonstration circuit containing a capacitor specifically includes: the openings of the water reservoir with openings at both ends are connected to the opening of the water reservoir with openings at one end through pipes, plugs are arranged in the pipes at the external openings of the water reservoir, and a water pump is arranged at at least one opening inside the water reservoir.

9. A self-assembled simulation circuit experiment demonstration device as claimed in claim 2, characterized in that: When the analog component is an inductor, a water flow simulation demonstration circuit containing an inductor is formed.

10. A self-assembled simulation circuit experiment demonstration device as claimed in claim 9, characterized in that: The water flow simulation demonstration circuit containing an inductor specifically includes: a water wheel simulation inductor is arranged in a glass box, openings on both sides of the glass box are connected to openings at both ends of a water reservoir through pipes, plugs are arranged in the pipes at the openings on both sides of the outside of the water reservoir, and a water pump is arranged at an opening on one side of the inside of the water reservoir to form a water flow path.

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