CN2643217Y - Electric water heater with leakage absorbing and alarm units - Google Patents
Electric water heater with leakage absorbing and alarm units Download PDFInfo
- Publication number
- CN2643217Y CN2643217Y CN 03255122 CN03255122U CN2643217Y CN 2643217 Y CN2643217 Y CN 2643217Y CN 03255122 CN03255122 CN 03255122 CN 03255122 U CN03255122 U CN 03255122U CN 2643217 Y CN2643217 Y CN 2643217Y
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Abstract
The utility model relates to an electric water heater with creepage absorption and alarm functions, and consists of aninner liner, a heater, an outer case body, a water inlet pipe and a water outlet pipe. The electric water heater is also provided with an ultra-strong creepage absorption device and a creepage detection circuit board, can control the voltage of the outlet water at 5 V around; also, can conduct the current away through the ultra-strong creepage absorption device even if under the creepage state. The creepage detection circuit board not only detects whether the ground-wire is electrified, but also detects whether the voltage of outlet water is oversized, and also gives an alarm and cuts the power supply ahead of time under the condition of an oversized creepage voltage.
Description
Technical field
The utility model relates to a kind of electric heater, particularly has the electric heater of electric leakage absorption and warning function.
Technical background
The regulation 50V of International Power committee is the limiting value of contact voltage, i.e. safe voltage.The pertinent regulations of China, 36V is a safe voltage.Because the electric heating system of electric heater directly heats the water in the water tank by the alternating current of 220V, exempting from from the shipwreck of delivery port outflow can be charged.Existing electric heater generally all is equipped with earth leakage protective device; substantially can guarantee water outlet voltage in the safe voltage scope, but when water outlet voltage during at tens volts of variations in voltage, user's health still can be experienced weak current; thereby the discomfort of generation, even forfeiture is to the trust of this electric heater.
Technology contents
The purpose of this utility model is by increasing electric leakage absorption plant and electric-leakage detection circuit, reduce the voltage of delivery port current greatly, electrical leakage voltage is controlled at about 5V,, and has the function of reporting to the police and cutting off the electricity supply automatically in advance under the excessive situation of electrical leakage voltage far below the safe voltage of 36V.
The technical solution of the utility model is as follows:
The electric heater of band earth leakage protective and alarm comprises inner bag, heater, shell body, water inlet pipe and outlet pipe; be characterized in: this electric heater also is provided with superabsorbent electric leakage device and electric-leakage detection circuit plate; the superabsorbent electric leakage device comprises metal joint and long metal pipe; metal joint one end communicates with inner bag; the other end is connected with long metal pipe; long metal pipe is fixed on the shell body and with outlet pipe and is connected; electric-leakage detection circuit plate output ground wire is connected to the superabsorbent electric leakage device, and live wire is connected to heater through water temperature control switch.
The electric heater of above-described band earth leakage protective and alarm, the electric-leakage detection circuit plate comprise the charged testing circuit of water, the control of line detection circuit, temperature drive circuit, safety power supply output circuit and alarm, the charged testing circuit of water is connected with alarm, and the ground line detection circuit is connected with the safety power supply output circuit with alarm respectively; The live wire of the power output end in the normally opened contact of the relay of temperature control drive circuit and the safety power supply output circuit is connected.
The electric heater of above-described band earth leakage protective and alarm, the charged testing circuit of water is to be connected to amplifier input terminal by the sensor metal sheet that links to each other with inner bag probe, and the output of amplifier is connected respectively to and is connected to relay behind the colelctor electrode of alarm and triode and constitutes; One end of the resistance of ground line detection circuit is connected to the live wire of power input, and the other end of resistance is connected to diode, amplifier input terminal, and amplifier out is connected respectively to the colelctor electrode of alarm and triode, is connected to the safety power supply output circuit; Temperature control drive circuit comprises input interface, photoelectricity isolation integrated circuit, amplifier and relay, input interface connects photoelectricity and isolates integrated circuit, be connected to amplifier, the output of amplifier is connected to relay, the normally-closed contact of relay disconnects, normally opened contact is connected to the live wire of power output end, is connected to heater; The safety power supply output circuit comprises power output end, thermistor, voltage regulation resistance and relay, the normally opened contact connecting to neutral line of relay, and normally-closed contact is connected to the series connection end points of thermistor and voltage regulation resistance, and K switch 2 is connected with the ground wire of power output end.
Substantive distinguishing features of the present utility model and progress are: under the electric leakage state, charged being detected of water sent warning, and by the superabsorbent electric leakage device electric current led away; The electric-leakage detection circuit plate can detect not only whether ground wire is charged, and whether can also detect water charged, and reports to the police in advance under out of order situation, makes things convenient for detection failure.This water heater can normally use under " water pipe is charged ", " ground wire electrification " and " heater electric leakage " all simultaneous situation.
Description of drawings
Fig. 1 is the utility model superabsorbent electric leakage device structural representation;
Fig. 2 is electric-leakage detection circuit plate figure of the present utility model.
The specific embodiment
As shown in Figure 1, the metal joint 25 of superabsorbent electric leakage device communicates with inner bag 23, metal joint 25 is connected with long metal pipe 26, long metal pipe is fixed on the shell body and with outlet pipe with metallic gasket 28 by nut 27 and is connected, and metallic gasket 28 is connected with the ground wire 22 of the safety power supply output circuit of electric-leakage detection circuit plate.
As shown in Figure 2, the charged testing circuit of the water of electric-leakage detection circuit plate of the present utility model is the input that is connected to amplifier 2 by the sensor metal sheet probe 1 that links to each other with inner bag, the output of amplifier 2 is connected to alarm 3, output passes through the colelctor electrode of triode 16 again, is connected to amplifier 13, triode 17 and relay 14 then; One end of the resistance 4 of ground line detection circuit is connected to the live wire of power input 15, the other end of resistance 4 is connected to diode 5, the positive input of amplifier 6 connects diode 5, output is connected to alarm 3, and output is connected to relay 7 in the safety power supply output circuit 8 through the colelctor electrode of triode 18 again; Temperature control drive circuit comprises input interface 10, photoelectricity isolation integrated circuit 11, amplifier 12 and relay 14, input interface 10 connects photoelectricity and isolates integrated circuit 11, be connected to amplifier 12, the output of amplifier 12 is connected to relay 14, the normally-closed contact of relay 14 disconnects, and normally opened contact is connected to the live wire of power output end 9; Safety power supply output circuit 8 comprises power output end 9, thermistor 19, voltage regulation resistance 20 and relay 7, the normally opened contact ground connection of relay 7, normally-closed contact is connected to the series connection end points of thermistor and voltage regulation resistance, and K switch 2 is connected with the ground wire 22 of power output end.
The basic principle of electric-leakage detection circuit plate is as follows: the ground line sensor of ground wire electrified detection circuit is installed in the control panel, when ground wire disconnection or imperfect earth, the ground line sensor will receive high voltage, this signal enters amplifier 6 and compares, output HIGH voltage is also reported to the police, close the connection of ground wire simultaneously, cut off ground wire and the zero line of transferring automatically; The sheet metal probe 1 of the charged detecting sensor of water receives the signal of inner container of electric water heater, if the water in the electric heater have high voltage (＞5V) time, the signal that probe receives enters amplifier 2 and compares, output HIGH voltage is also reported to the police, close heater simultaneously, cut off the voltage in the water; Temperature control drive circuit is isolated the water temperature that integrated circuit 11 monitoring are set by input interface 10 and photoelectricity, compare by amplifier 12 to the received signal, the folding that comes control relay 14 according to the variation of water temperature, thus the power switch of control heater is whether; When ground wire inserts 14-220V, the pressure limiting circuit of being made up of thermistor 19 and piezo-resistance 20 in the safety line circuit 8 is limited in the 14V voltage of output ground wire 22, at this moment line sensor can detect signal, and this signal and amplifier 6 compared, output HIGH voltage, and report to the police, disconnect ground wire 22 connections simultaneously and also be forwarded to automatically on the zero line 21, avoided dangerous currents to enter from ground wire.
After the electric heater energising, the ground line detection circuit detects, and just often indicator lamp is bright, and enters the safety detection state; Electric heater begins heating, whether detect inner bag simultaneously charged, when if the charged testing circuit of water detects greater than the voltage of 5V, alarm gives the alarm, meanwhile the long metal pipe of superabsorbent electric leakage device absorbs the electronics in this vessel water fully, and electronics is derived the ground wire of safety power supply circuit by lead.After the unexpected rising of ground wire voltage, electric current is through thermistor, the voltage of thermistor output is controlled by pressure limiting circuit during greater than 14V, make the output ground wire voltage of electric heater be no more than 14V, side by side the line detection circuit output HIGH voltage drives alarm equipment alarm, drives relay work ground wire is disconnected, this moment, the ground wire of electric heater was replaced by zero line, made the output ground wire voltage be dropped to about 5V by 14V again.
Claims (3)
1; a kind of electric heater with earth leakage protective and alarm; comprise inner bag (23); heater; shell body (24); water inlet pipe (30) and outlet pipe; it is characterized in that: this electric heater also is provided with superabsorbent electric leakage device and electric-leakage detection circuit plate; the superabsorbent electric leakage device comprises metal joint (25) and long metal pipe (26); metal joint (25) one ends communicate with inner bag; the other end is connected with long metal pipe (26); long metal pipe is fixed on the shell body and with outlet pipe and is connected; electric-leakage detection circuit plate output ground wire (22) is connected to the superabsorbent electric leakage device, and live wire is connected to heater through water temperature control switch.
2, the electric heater of band earth leakage protective according to claim 1 and alarm; it is characterized in that: the electric-leakage detection circuit plate comprise the charged testing circuit of water, the control of line detection circuit, temperature drive circuit, safety power supply output circuit (8) and alarm (3); the charged testing circuit of water is connected with alarm; the ground line detection circuit is connected with safety power supply output circuit (8) with alarm (3) respectively, and the live wire that temperature is controlled the power output end (9) in normally opened contact and the safety power supply output circuit of relay (14) of drive circuit is connected.
3, according to the electric heater of claim 1,2 described band earth leakage protectives and alarm, it is characterized in that: the charged testing circuit of the water of electric-leakage detection circuit plate is the input that is connected to amplifier (2) by the sensor metal sheet probe (1) that links to each other with inner bag, the output of amplifier (2) is connected to alarm (3), output passes through the colelctor electrode of triode (16) again, is connected to amplifier (13), triode (17) and relay (14) then and constitutes; The ground line detection circuit is the live wire that is connected to power input by an end of resistance (4), the other end of resistance (4) is connected to the input of diode (5), amplifier (6), the output of amplifier (6) is connected respectively to alarm (3) and triode (18), and formation then links to each other with relay (7) in the safety power supply output circuit (8); Temperature control drive circuit comprises input interface (10), photoelectricity isolation integrated circuit (11), amplifier (12) and relay (14), input interface (10) connects photoelectricity and isolates integrated circuit (11), be connected to amplifier (12), the output of amplifier (12) is connected to relay (14), the normally-closed contact of relay (14) disconnects, normally opened contact is connected to the live wire of power output end (9), is connected to heater; Safety power supply output circuit (8) comprises power output end (9), thermistor (19), voltage regulation resistance (20) and relay (7), the normally opened contact ground connection of relay (7), normally-closed contact is connected to the series connection end points of thermistor and voltage regulation resistance, and K switch 2 is connected with the ground wire (22) of power output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255122 CN2643217Y (en) | 2003-08-13 | 2003-08-13 | Electric water heater with leakage absorbing and alarm units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255122 CN2643217Y (en) | 2003-08-13 | 2003-08-13 | Electric water heater with leakage absorbing and alarm units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2643217Y true CN2643217Y (en) | 2004-09-22 |
Family
ID=34294828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255122 Expired - Fee Related CN2643217Y (en) | 2003-08-13 | 2003-08-13 | Electric water heater with leakage absorbing and alarm units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2643217Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101294745B (en) * | 2008-06-11 | 2010-06-23 | 宁波方太厨具有限公司 | Electric water heater with three-dimensional electricity guard wall function |
| CN102927690A (en) * | 2012-11-14 | 2013-02-13 | 海尔集团公司 | Water heater and electric leakage and dry burning preventing detection method thereof |
| CN106766110A (en) * | 2017-01-04 | 2017-05-31 | 宁波帅康热水器有限公司 | It is a kind of can anti-electric and early warning gas heater |
| CN106766120A (en) * | 2017-01-04 | 2017-05-31 | 宁波帅康热水器有限公司 | It is a kind of from anti-electric and early warning gas heater |
| CN108245922A (en) * | 2018-02-07 | 2018-07-06 | 潘泽琪 | A kind of crystallization treatment device based on industrial wastewater emission reduction |
| CN108870728A (en) * | 2018-03-02 | 2018-11-23 | 青岛经济技术开发区海尔热水器有限公司 | A kind of electric heater |
| CN109581141A (en) * | 2018-12-14 | 2019-04-05 | 青岛经济技术开发区海尔热水器有限公司 | A kind of electrical leakage detecting method and electric heater of electric heater |
| CN110703140A (en) * | 2013-11-19 | 2020-01-17 | 李铉昌 | Mobile leakage detection device and method |
| CN111833574A (en) * | 2020-07-14 | 2020-10-27 | 广东格美淇电器有限公司 | Voltage induction type alarm device and alarm method thereof |
| CN113865107A (en) * | 2020-06-30 | 2021-12-31 | 芜湖美的厨卫电器制造有限公司 | Power consumption environment detection device and water heater |
-
2003
- 2003-08-13 CN CN 03255122 patent/CN2643217Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101294745B (en) * | 2008-06-11 | 2010-06-23 | 宁波方太厨具有限公司 | Electric water heater with three-dimensional electricity guard wall function |
| CN102927690A (en) * | 2012-11-14 | 2013-02-13 | 海尔集团公司 | Water heater and electric leakage and dry burning preventing detection method thereof |
| CN102927690B (en) * | 2012-11-14 | 2018-07-24 | 海尔集团公司 | Water heater and its electric leakage and anti-dry detection method |
| CN110703140A (en) * | 2013-11-19 | 2020-01-17 | 李铉昌 | Mobile leakage detection device and method |
| CN106766110A (en) * | 2017-01-04 | 2017-05-31 | 宁波帅康热水器有限公司 | It is a kind of can anti-electric and early warning gas heater |
| CN106766120A (en) * | 2017-01-04 | 2017-05-31 | 宁波帅康热水器有限公司 | It is a kind of from anti-electric and early warning gas heater |
| CN106766110B (en) * | 2017-01-04 | 2019-12-13 | 宁波帅康热水器有限公司 | Gas water heater capable of preventing electricity and early warning |
| CN108245922A (en) * | 2018-02-07 | 2018-07-06 | 潘泽琪 | A kind of crystallization treatment device based on industrial wastewater emission reduction |
| CN108870728A (en) * | 2018-03-02 | 2018-11-23 | 青岛经济技术开发区海尔热水器有限公司 | A kind of electric heater |
| CN109581141A (en) * | 2018-12-14 | 2019-04-05 | 青岛经济技术开发区海尔热水器有限公司 | A kind of electrical leakage detecting method and electric heater of electric heater |
| CN113865107A (en) * | 2020-06-30 | 2021-12-31 | 芜湖美的厨卫电器制造有限公司 | Power consumption environment detection device and water heater |
| CN111833574A (en) * | 2020-07-14 | 2020-10-27 | 广东格美淇电器有限公司 | Voltage induction type alarm device and alarm method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |