First, the classification of electric toothbrush
1, electric toothbrush has two categories: rotation and vibration. (1) Rotating toothbrush is the rotation of the circular brush head driven by the motor, which strengthens the friction effect while performing ordinary brushing actions. The rotating toothbrush has high noise, clean the tooth surface, and relatively weak interdental cleaning.
②, acoustic toothbrush refers to the vibration frequency of the bristles/brush head is consistent with or close to the frequency of the acoustic wave, so it is also called acoustic vibration toothbrush. In fact, it is not really "acoustic wave", but the rapid motion of the bristles similar to the frequency of acoustic wave creates super cleaning effect nearly 100 times better than the traditional manual toothbrush.
The acoustic vibration type toothbrush relies on the internal motor to drive the brush head to produce a high frequency swing perpendicular to the brush handle, but the swing amplitude is very small, generally about 5 mm up and down, the largest swing in the industry is 6 mm, if the amplitude is too large, it may affect the gingiva. More than 30,000 vibrations per minute create tiny bubbles in the toothpaste and water mixture. When the bubbles burst, the pressure creates a deeper cleaning effect between the teeth.
Two, the structure of the acoustic toothbrush
1, electric toothbrush structure
Main components: Tooth brush head, the fuselage, charging (using the wireless charging), below is based on the popular on the market structure and dismantling of sonic electric toothbrush, brush a head of the leading manufacturers cannot be compatible, because the brush head is expendable to change regularly, for brands, brush a head part is a big fat meat, is each big brand the main reason for the brush head is not compatible.
The body part is mainly for installing lithium batteries, motors, control boards, buttons and charging parts. According to the industry standard :T/CHEAA 0009-2019 Electric Toothbrush (6.3 waterproof performance), the electric toothbrush with non-removable handheld parts can work normally after IPX7 grade test, which refers to the body part. The sample shall be placed into the tank with a distance of at least 1m from the bottom of the sample to the water surface and a distance of at least 0.15m from the top of the sample to the water surface. Ensure that the sample is completely immersed in water for 30 minutes. After the test is completed, the sample can work normally. At the same time, after the structure is disassembled, there is no water inside.
