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Capacitive inductive faucet

A capacitive, inductive joint technology, applied in electric controllers, controllers with pulse train output signals, valve details, etc., can solve the problem of water accumulation, limited sensing angle of the sensing window, and sensitive probes susceptible to moisture. and other problems, to achieve the effect of rapid response and reliable induction

Inactive Publication Date: 2009-09-30
XIAMEN OLT SCI & TECH ELECTRONICS DEVING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of product must have a sensing window on the faucet body, which limits the appearance design of the faucet body. At the same time, due to the limited sensing angle of the sensing window, the hand must be placed directly in front of the sensing window when sensing with the hand. Excessive deviation will make it If the hand is not sensed, the water supply will be stopped, causing inconvenience to people
At the same time, the infrared signal probe can sense any passing objects, which is easily disturbed by the environment, and it is easy to mistakenly discharge water, resulting in a waste of water resources.
Moreover, the sensing probe part is easily affected by moisture, which will form water in the probe and damage the probe

Method used

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Embodiment Construction

[0014] Such as figure 1 As shown in , the present invention includes a faucet body 1, a water inlet pipe 2 and a solenoid valve 4 arranged on the water inlet pipe, and also includes an induction joint 3 electrically connected to the faucet body, and the induction joint is fixedly arranged on the faucet body through a nut 5 The base of the body 1 is connected to a control unit.

[0015] Such as figure 2 As shown in , the control unit includes a microprocessor, and the microprocessor controls a pulse generating circuit composed of a logic matrix to generate a pulse signal, which is sent to the sensing joint after filtering and stabilizing the circuit, and the sensing joint will sense After the charge change of the faucet body is processed by the electrostatic discharge circuit (ESD circuit for short) and the filter stabilization circuit, it is collected by the charge acquisition circuit and sent to the charge comparison and amplification circuit, and the amplified signal is se...

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Abstract

The invention relates to an automatic control faucet, in particular to a capacitive inductive faucet, which comprises a faucet body, a water inlet pipe, an electromagnetic valve arranged on the water inlet pipe, and an inductive joint electrically connected with the faucet body, wherein the inductive joint is connected with a control unit which comprises a microprocessor; the microprocessor controls a pulse generating circuit to generate a pulse signal which is sent to the inductive joint after passing through a filter stabilizing circuit; and the faucet body is used as an inductive part so that an induction field around the faucet body is formed centering on the faucet body. The inductive faucet is only inductive to a human body and does not react to a non-living object, and the induction range is between 0 and 5 centimeters; and when a human hand gets close to the faucet, the amount of electric charge acquired by the faucet is increased, and the faucet can detect the approach of the human hand according to a preset threshold value so as to control the electromagnetic valve to release water.

Description

technical field [0001] The invention relates to an automatic control faucet, in particular to a capacitive induction faucet. Background technique [0002] The existing induction faucets mainly use active infrared induction. The probe emits infrared rays, and by receiving the reflected infrared signal, the position of the object is judged, and the function of water supply or water stop is realized. This kind of product must have a sensing window on the faucet body, which limits the appearance design of the faucet body. At the same time, due to the limited sensing angle of the sensing window, the hand must be placed directly in front of the sensing window when sensing with the hand. Excessive deviation will make it If the hand is not sensed, the water supply will be stopped, causing inconvenience to people. At the same time, the infrared signal probe can sense any passing objects, which is easily disturbed by the environment, and it is easy to mistakenly discharge water, resu...

Claims

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Application Information

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IPC IPC(8): F16K31/06G05B11/26
Inventor 吴端龙
Owner XIAMEN OLT SCI & TECH ELECTRONICS DEVING
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