CN201180853Y - Capacitor type induction tap - Google Patents

Capacitor type induction tap Download PDF

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Publication number
CN201180853Y
CN201180853Y CNU200820110855XU CN200820110855U CN201180853Y CN 201180853 Y CN201180853 Y CN 201180853Y CN U200820110855X U CNU200820110855X U CN U200820110855XU CN 200820110855 U CN200820110855 U CN 200820110855U CN 201180853 Y CN201180853 Y CN 201180853Y
Authority
CN
China
Prior art keywords
circuit
tap
solenoid valve
microprocessor
control
Prior art date
Application number
CNU200820110855XU
Other languages
Chinese (zh)
Inventor
吴端龙
Original Assignee
吴端龙
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 吴端龙 filed Critical 吴端龙
Priority to CNU200820110855XU priority Critical patent/CN201180853Y/en
Application granted granted Critical
Publication of CN201180853Y publication Critical patent/CN201180853Y/en

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Abstract

The utility model relates to an automatic control tap, particularly to a capacitive induction tap. The tap comprises a tap body, a water inlet pipe, a solenoid valve arranged on the water inlet pipe, and an induction connector electrically connected with the tap body, wherein, a control unit is connected to the induction connector; the control unit comprises a microprocessor; the microprocessor controls a pulse signal generated through a pulse generation circuit; and the pulse signal is sent to the induction connector after passing through a filtering and stabilizing circuit. The tap body is used as an induction part and taken as a center, so that an induction field encircled the tap body is formed. The tap only induces human bodies, and does not generate reaction to lifeless objects. The induction range is between 0 and 5cm. When a human hand is close to the tap, the quantity of electric charge collected by using the tap body is increased, so that the approach of the human hand is detected through a preset threshold, and the water discharge of the solenoid valve is controlled.

Description

Capacitive inductive faucet
Technical field
The utility model relates to a kind of automatic control tap, particularly a kind of capacitive inductive faucet.
Background technique
What existing inductive faucet used mainly is active type infrared induction, probe emission infrared rays, and by receiving the infrared signal of reflection, feedwater or the function of cutting off the water are realized in the position of judgment object.This product must have the induction window on cock body, limited the appearance design of cock body, simultaneously because the angle of induction window induction is limited, must be placed on the dead ahead of induction window with the seasonable hand of feel, over-deflection can make its induction not in one's hands, will stop to supply water, and makes troubles to the people.The infrared signal probe can be sensed the object of any process simultaneously, is subjected to the interference of environment easily, and water outlet by mistake causes the waste of water resources easily.And inductive probe part is subjected to the influence of moisture easily, can form ponding in probe, damages probe.
The model utility content
The utility model has overcome above-mentioned shortcoming, and a kind of capacitive inductive faucet simple, easy to use of controlling is provided.
The technical scheme in the invention for solving the technical problem is: a kind of capacitive inductive faucet, comprise cock body, intake pipe and the solenoid valve that is arranged on the intake pipe, also comprise the inductive connector that is electrically connected with described cock body, described inductive connector is connected with a control unit, described control unit comprises microprocessor, described microprocessor control impuls produces the pulse signal that circuit produces, behind the filtering stabilizing circuit, send to described inductive connector, described inductive connector with the change in electrical charge of the cock body sensed after static discharge (being called for short ESD) circuit and filtering stabilizing circuit are handled, after the collection of electric charge Acquisition Circuit, send to charge ratio again and reach amplification circuit, signal after the amplification is sent in the described microprocessor, and described microprocessor is by a solenoid valve control circuit connection and control described solenoid valve.
Described solenoid valve can be pulse-controlled electromagnetic valve.
Described solenoid valve control circuit can comprise the pulse driving circuit that two line structures are identical, links to each other with the two ends of solenoid valve respectively, controls described two pulse driving circuits respectively from the two pulse signals that described microcontroller produces.
Described control unit also can be connected with power circuit, and described power circuit comprises battery or/and ac-dc converter circuit.
Described microprocessor adopts little process chip of MICROCHIP company.
The utility model uses cock body as inductive means, by pulse signal to described fixed frequency of cock body input and dutycycle, make with the cock body to be the center, form a induction field around cock body, only to body sense, lifeless object is not produced reaction, and induction range 0~5cm is when staff is close, the amount of utilizing cock body to gather electric charge will increase, by the threshold values of prior setting, just can detect the approaching of staff, thus the control electromagnetic valve water outlet, the utility model induction is reliable, be swift in response, be not subjected to the restriction of the induction window of infrared probe, can design cock body more attractive in appearance, hommization more, overcome the shortcoming of infrared induction tap simultaneously, conformed automatically, can not miss water outlet.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the schematic diagram of control unit in the utility model;
Fig. 3 is the schematic diagram of solenoid valve control circuit in the utility model;
Fig. 4 be of the present utility model described in the fundamental diagram of program in the microprocessor.
Embodiment
As shown in fig. 1, the utility model comprises cock body 1, intake pipe 2 and is arranged on solenoid valve 4 on the intake pipe, also comprise the inductive connector 3 that is electrically connected with described cock body, described inductive connector is fixedly installed on the base position of cock body 1 by nut 5, and is connected with a control unit.
As shown in Figure 2, described control unit comprises microprocessor, the pulse-generating circuit that described microprocessor control has logic matrix to constitute produces pulse signal, behind the filtering stabilizing circuit, send to described inductive connector, described inductive connector with the change in electrical charge of the cock body sensed after described electrostatic discharge circuit (being called for short the ESD circuit) and filtering stabilizing circuit are handled, after the collection of electric charge Acquisition Circuit, deliver to charge ratio again and reach amplification circuit, deliver in the described microprocessor through the signal after amplifying, described microprocessor also connects by a solenoid valve control circuit and controls described solenoid valve.The pulse that the utility model produces fixed frequency and dutycycle by the described pulse-generating circuit of microcontroller chip controls, send into described inductive connector after handling by described filtering stabilizing circuit, make the electric field of generation alternation between the cock body that is electrically connected with described inductive connector and object on every side.When object on every side is static relatively, the amount of the electric charge by filtering stabilizing circuit arrangement and the collection of electric charge Acquisition Circuit is fixed, as human body especially staff near the time, because the liquid in the human body has accounted for 70%, human body self has certain electric charge, staff is near cock body the time, electric charge on it can be absorbed a part by the cock body surface, at this moment, after described inductive connector collects this change in electrical charge, and behind the amplification circuit deliver in the described microprocessor by charge ratio again through filtering stabilizing circuit and electric charge Acquisition Circuit, compare with threshold values by the conversion of the D/A converting circuit in described microprocessor back, just control described solenoid valve and open if be higher than threshold values, make leading water outlet, be lower than threshold values and just do not deal with by described solenoid valve control circuit.Simultaneously, because water also is weak conductor, therefore open at described solenoid valve, there is the mobile electric charge of cock body that makes of current constantly to change, therefore described electric charge Acquisition Circuit will the constantly variation of tracking environmental under the control of microprocessor, constantly change the threshold values of boiling water and Guan Shui, accomplished fully automatically with stable.
Microprocessor and peripheral circuit constitute control section, realize the work of control each several part circuit unit, as shown in Figure 4, can change by induced emission control unit and automatic tracking loop border, Tracing Control unit, thereby control impuls produces circuit working, the signal that described charge ratio will reach after amplification circuit will amplify is sent into described induction reception control unit after the AD conversion unit conversion, and by described induction reception control unit setting threshold values, control the work of described signal judgement unit control switch water unit, the control electromagnetic valve control circuit is realized switch water, also can utilize Battery check and alarm unit to detect the state of battery, reduce to sending alarm after the proper functioning at cell voltage, the button detection unit is to detect the button regulating distance of reaction and make Program reset of being used to be external in described microprocessor, and then realizes further control.For stable operation, described microprocessor has adopted watchdog circuit, has guaranteed the reliable operation of program.And the specific procedure of each unit in the described microprocessor is that those of ordinary skills need not creative work, can work out according to the concrete function needs, repeats no more here.
Described control unit also is connected with power circuit, and described power circuit is realized the power supply of The whole control unit, can adopt No. 5 batteries of four joints, has adopted sleep pattern work in order to save the energy, and quiescent current is less than 20uA.
When described solenoid valve adopts pulse-controlled electromagnetic valve, described solenoid valve control circuit as shown in Figure 3, comprise the pulse input circuit that two line structures are identical, one the tunnel being example wherein, drive F1 circuit and pulsed drive F2 from control input end (being the positive direction actuation signal end) the while control impuls that described microcontroller is sent, F1 forward conduction wherein, F2 ground connection, the output terminal of two drive circuits links to each other with the two ends of solenoid valve; Another control input end of described microcontroller (being the reverse drive signals end) simultaneously control impuls drive circuit F2 and pulsed drive F1 in like manner, F2 forward conduction wherein, F1 ground connection, the output terminal of two drive circuits links to each other with the two ends of solenoid valve, owing to adopt pulse-controlled electromagnetic valve, the conversion of opening and closing two states only needs two pulses, be direct impulse and reverse impulse, the width of pulse has only a few tens of milliseconds, make the impulsive current control electromagnetic valve conducting forward or backwards of flowing through solenoid valve, thereby therefore the switch of control electromagnetic valve does not need to keep electric current, therefore can reach purpose of energy saving, save the energy consumption of battery.
More than capacitive inductive faucet provided by the utility model is described in detail, used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.

Claims (5)

1. capacitive inductive faucet, comprise cock body, intake pipe and the solenoid valve that is arranged on the intake pipe, it is characterized in that: also comprise the inductive connector that is electrically connected with described cock body, described inductive connector is connected with a control unit, described control unit comprises microprocessor, described microprocessor control impuls produces the pulse signal that circuit produces, behind the filtering stabilizing circuit, send to described inductive connector, described inductive connector with the change in electrical charge of the cock body sensed after electrostatic discharge circuit and filtering stabilizing circuit are handled, after the collection of electric charge Acquisition Circuit, send to charge ratio again and reach amplification circuit, signal after the amplification is sent in the described microprocessor, and described microprocessor is by a solenoid valve control circuit connection and control described solenoid valve.
2. capacitive inductive faucet according to claim 1 is characterized in that: described solenoid valve is a pulse-controlled electromagnetic valve.
3. capacitive inductive faucet according to claim 2, it is characterized in that: described solenoid valve control circuit comprises the pulse driving circuit that two line structures are identical, link to each other with the two ends of solenoid valve respectively, control described two pulse driving circuits respectively from the two pulse signals that described microcontroller produces.
4. according to claim 1 or 2 or 3 described capacitive inductive faucets, it is characterized in that: described control unit also is connected with power circuit, and described power circuit comprises battery or/and ac-dc converter circuit.
5. according to claim 1 or 2 or 3 described capacitive inductive faucets, it is characterized in that: described microprocessor adopts MICROCHIP company microcontroller chip.
CNU200820110855XU 2008-04-29 2008-04-29 Capacitor type induction tap CN201180853Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU200820110855XU CN201180853Y (en) 2008-04-29 2008-04-29 Capacitor type induction tap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU200820110855XU CN201180853Y (en) 2008-04-29 2008-04-29 Capacitor type induction tap

Publications (1)

Publication Number Publication Date
CN201180853Y true CN201180853Y (en) 2009-01-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU200820110855XU CN201180853Y (en) 2008-04-29 2008-04-29 Capacitor type induction tap

Country Status (1)

Country Link
CN (1) CN201180853Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103697212A (en) * 2013-11-08 2014-04-02 珠海爱迪生节能科技有限公司 Universal capacitive-type touch induction switch assembly for faucets

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103697212A (en) * 2013-11-08 2014-04-02 珠海爱迪生节能科技有限公司 Universal capacitive-type touch induction switch assembly for faucets
CN105422962A (en) * 2013-11-08 2016-03-23 广州海鸥卫浴用品股份有限公司 Tap general capacitive touch induction switch assembly
CN103697212B (en) * 2013-11-08 2016-08-17 广州海鸥卫浴用品股份有限公司 A kind of faucet universal capacitor-type touch inductive switch assembly
CN105422962B (en) * 2013-11-08 2018-09-18 广州海鸥住宅工业股份有限公司 A kind of working method of the universal capacitor-type touch inductive switch component of tap

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 362000 NO.402, TONGHUAIGE, TUMEN STREET, LICHENG DISTRICT, QUANZHOU CITY, FUJIAN PROVINCE TO: 361009 502, XINYE BUILDING, VENTURE PARK,TORCH HIGH-TECH ZONE, XIAMEN CITY, FUJIAN PROVINCE,504,506

ASS Succession or assignment of patent right

Owner name: XIAMEN OLT SCIENCE + TECHNOLOGY ELECTRONIC DEVELOP

Free format text: FORMER OWNER: WU DUANLONG

Effective date: 20100414

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20100414

Address after: 361009 Fujian Province, Xiamen torch hi tech Zone Business Park Xinye building 502, 504, 506

Patentee after: Xiamen OLT Co.,Ltd.

Address before: Licheng District, Tumen street Quanzhou city Fujian province 362000 Tong Huai Pavilion No. 402

Patentee before: Wu Duanlong

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20090114