Working principle and purchasing skill of induction faucet

Working principle and purchasing skill of induction faucet

Working principle of induction faucet

Working principle and purchasing skill of induction faucet

As the induction faucet does not need direct contact with human body, it can effectively prevent bacterial cross infection; the function of reaching for water and turning off when leaving can effectively save water by more than 30%, which is also very popular in families.

1. Look at the appearance of the faucet body selection copper or all steel manufacturing, the surface to be smooth. There is no air hole, burr and oxidation spot on the surface of tap to prevent the purchase of zinc alloy faucet body.

2. Look at the material to see whether the tube body and surface of the faucet are smooth and smooth. In the humid environment such as kitchen and bathroom space, the surface of the faucet is generally subject to chromium plating treatment, but the same is chromium plating, and the process treatment is quite different. According to the designer, the good tube body is made of all copper or steel, and the surface must be polished, dusted, nickel plated, polished, chrome plated and other processing procedures to ensure that it will not turn black, blister and fall off in use. Generally speaking, from the surface of the faucet, the brighter and more delicate the naked eye can see, the better the coating process will be.

3. See the details, according to the induction time and water outlet time stated in the product use book, conduct a field test to determine whether it is as described in the book. Whether the product has regular brand and packaging, the plug of induction faucet must be waterproof plug.

4. The service sensor is a technology product. Sometimes it is not sensitive or too sensitive. Therefore, you should ask for the specific terms of service when you buy it. With after-sales support, able to solve problems in time.

Working principle of induction faucet

1. Principle of faucet sensor infrared reflection

The induction faucet is based on the principle of infrared reflection. When the human hand is placed in the infrared area of the faucet, the infrared emitted by the infrared transmitting tube is blocked by the human hand. The signal processed by the microcomputer in the integrated circuit is sent to the pulse solenoid valve. After receiving the signal, the solenoid valve opens the valve core according to the specified command to control the water outlet of the faucet When the human hand is out of the infrared range, the solenoid valve does not receive the signal, and the solenoid valve core is reset through the internal spring to control the water turn off of the faucet.

2. Faucet sensor principle - electromagnetic induction principle takes people as conductors. When they are in the magnetic field formed by 50 Hz alternating current, electromagnetic induction will occur, and the human body will generate induced current, which will react with the original electromagnetic field, thus changing the original current. When this change is received by the circuit, the water will be discharged through the electromagnetic relay. The infrared ray receives the body temperature of 37 degrees. When it is higher than the room temperature, it radiates infrared rays outward, and receives this radiation sensor to make the tap water flowing. The infrared reflection infrared transmitting tube emits a bunch of infrared rays to the water flow direction. When the hand reaches to the faucet, the infrared ray is reflected by the hand, and the infrared receiving tube receives the infrared light, and sends the signal to the internal circuit. After the internal circuit processing, the power supply of the electromagnetic faucet is turned on. When the hand leaves the faucet, the infrared ray is no longer reflected, and the power supply of the electromagnetic faucet is turned on Shut down and stop the water supply.