Nebulizer comprising power supply system

A nebulizer that atomizes and ejects a liquid, the nebulizer comprising:

• a main body lower portion;
• and
• a main body upper portion combined with the main body lower portion,
• the main body lower portion being mounted with a power supply unit, an oscillation unit that receives a power supply from the power supply unit and generates an oscillation output, and a power transmission-side circuit for transmitting the oscillation output to the main body upper portion,
• the main body upper portion being mounted with a power reception-side circuit for receiving the oscillation output, and an atomization portion including an ultrasonic vibrator configured to atomize a supplied liquid using the oscillation output received, and
• the nebulizer including a power supply system that performs wireless power supply from the power transmission-side circuit to the power reception-side circuit,
• wherein
• the power transmission-side circuit includes a power transmission coil and transmits a power to the power reception-side circuit at a certain oscillation frequency through the power transmission coil,
• in the power reception-side circuit, a power reception coil and the ultrasonic vibrator as a load including a capacitive reactance configure a power reception-side resonance circuit to determine a resonance frequency of the power reception-side resonance circuit, and
• the nebulizer includes a control unit that controls the oscillation frequency so as to maintain a power transmission efficiency from the power transmission-side circuit to the power reception-side circuit when a resonance frequency of the power reception-side resonance circuit changes due to a change in an impedance including the capacitive reactance of the ultrasonic vibrator during power supply.