Magnetic pogo pin connector in bone conduction Bluetooth headsets

When it comes to Bluetooth headsets, everyone must be familiar with them, especially in recent years, the Bluetooth headset market is in full swing, and major manufacturers are competing to launch their own brands of Bluetooth headsets. Bluetooth headphones can be divided into: ear-hanging (wired), neck-hanging (wired), TWS true wireless headphones, etc. Although pogo pin is used in these products, today we are going to introduce a small branch of Bluetooth headset-bone conduction Bluetooth headset, which is very popular among sports enthusiasts.

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Not many people may know about bone conduction headphones, so what are bone conduction headphones? Bone conduction headphones refer to headphones that use human bones as the medium and transmit sound to auditory organs without passing through the external auditory canal and eardrum. Its principle is to convert sound into different mechanical vibrations, and transmit sound waves through the human skull, bone labyrinth, inner ear lymph fluid, spiral apparatus, auditory center, etc. The principle is shown in the figure below:

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The magnetic Pogo pin connector is commonly used in the charging interface of bone conduction headphones, which is used to charge the battery in the headphones and ensure its normal operation.

Don't underestimate this small charging contact, which implies cutting-edge technology. The human body will shed a lot of sweat when exercising. When you wear headphones, you will inevitably take up a lot of sweat on the headphones. 98% of the sweat is water, and the rest are inorganic salts, urea uric acid, etc.

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The charging contacts of headphones will conduct electricity when encountering water (this voltage is very low and will not cause harm to the human body), which will slowly electrolyze the surface electroplating layer on the contacts, even if it is more than the acidic substances in the fate sweat electrolyzed by water will slowly corrode this electroplating layer; The surface electroplating layer plays a role in protecting contacts and increasing conductivity. When this protective layer is destroyed, it will lead to poor contact during charging, so that the headphones may not be charged normally. Without electricity, the headphones will also become waste products.

Therefore, the surface treatment of pogo pin connectors and contacts used on sports headphones should at least be anti-electrolysis and anti-corrosion, and on products that may come into contact with the skin, it should be ensured that it will not cause skin allergy. This one has stumped many companies. The independently developed unique surface coating technology can pass> 240 hours of artificial sweat resistance test and salt spray resistance test, which can completely solve the above problems.

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