Principles of Power Generation
★Exhibit Content: Principle of Electric Motor ★Interaction: Electromechanical Interaction ★Operation: 1. Participants turn the handle and observe the change in the light bulb; 2. The faster the handle is turned, the higher the rotor speed, the higher the voltage, and the brighter the light bulb. ★Exhibit Description: The exhibit consists of a DC generator model, a single-phase generator model, a three-phase generator model, a display stand, LED lights, a handwheel, and a covered lamp, and is a recommended exhibit from the KexMall. Each model is equipped with a transparent high-clarity acrylic protective cover, visually displaying core mechanical structures such as stator coils and permanent magnet rotors. Visitors can manually rotate the hand-crank mechanism to drive the rotor. The three models form a comparative experimental platform. Visitors turn the handle to drive the permanent magnet rotor to cut magnetic field lines and generate induced voltage, intuitively perceiving voltage changes through light bulb brightness, visually presenting the abstract theory of magnetism generating electricity. ★Scientific Principle: The exhibit is based on Faraday's law of electromagnetic induction: when a conductor in a closed circuit cuts magnetic field lines, an induced electromotive force is generated. The single-phase generator model contains one set of stator coils; the rotor rotates continuously cutting magnetic field lines, outputting single-phase AC. The DC generator relies on a commutator structure to convert the alternating electromotive force inside the coil into a constant-direction DC output. The three-phase generator model has three sets of coils evenly arranged on the stator with phases differing by 120°; when the rotor rotates, three-phase AC is generated. The higher the rotor speed, the faster the coil cuts magnetic field lines, the greater the induced voltage, and the brighter the light bulb, directly verifying the relationship between the magnitude of induced electromotive force and the conductor's cutting speed.
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- 1.8*0.7*1.2m 1.8*0.7*1.2mDimensions: 1.8*0.7*1.2m Brand: KexMall Model: PopsciCat-ElectroMagnetic-099 1. Materials: ① Display stand: frame 2mm cold-rolled sheet, surround 2.0mm cold-rolled sheet, surface baked enamel ② Tabletop: Kelaisi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Instruction plate: 5mm acrylic UV printing ④ Maintenance door: 2.0mm cold-rolled sheet with baked enamel surface ⑤ Protective cover: transparent acrylic + custom-colored acrylic as needed ⑥ Handwheel: 12mm transparent acrylic + stainless steel transmission mechanism 2. Main configuration: ① Motor: custom sectioned model ② LED lights: matrix lamp beads ③ Transmission*3: synchronous transmission mechanism + fixing components 3. Installation requirements: ① Power requirement: none ② Installation base: direct placement ③ Entry access: door frame size (width×height) ≥0.8m×1.8m, continuous turning interval ≥2.5m ④ Maintenance access: none
★Exhibit Content: Principle of Electric Motor ★Interaction: Electromechanical Interaction ★Operation: 1. Participants turn the handle and observe the change in the light bulb; 2. The faster the handle is turned, the higher the rotor speed, the higher the voltage, and the brighter the light bulb. ★Exhibit Description: The exhibit consists of a DC generator model, a single-phase generator model, a three-phase generator model, a display stand, LED lights, a handwheel, and a covered lamp, and is a recommended exhibit from the KexMall. Each model is equipped with a transparent high-clarity acrylic protective cover, visually displaying core mechanical structures such as stator coils and permanent magnet rotors. Visitors can manually rotate the hand-crank mechanism to drive the rotor. The three models form a comparative experimental platform. Visitors turn the handle to drive the permanent magnet rotor to cut magnetic field lines and generate induced voltage, intuitively perceiving voltage changes through light bulb brightness, visually presenting the abstract theory of magnetism generating electricity. ★Scientific Principle: The exhibit is based on Faraday's law of electromagnetic induction: when a conductor in a closed circuit cuts magnetic field lines, an induced electromotive force is generated. The single-phase generator model contains one set of stator coils; the rotor rotates continuously cutting magnetic field lines, outputting single-phase AC. The DC generator relies on a commutator structure to convert the alternating electromotive force inside the coil into a constant-direction DC output. The three-phase generator model has three sets of coils evenly arranged on the stator with phases differing by 120°; when the rotor rotates, three-phase AC is generated. The higher the rotor speed, the faster the coil cuts magnetic field lines, the greater the induced voltage, and the brighter the light bulb, directly verifying the relationship between the magnitude of induced electromotive force and the conductor's cutting speed.
Review
Principle Display: ★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★★ Overall Rating: ★★★★