CN1289163A - Leakage protector - Google Patents
Leakage protector Download PDFInfo
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- CN1289163A CN1289163A CN 00133402 CN00133402A CN1289163A CN 1289163 A CN1289163 A CN 1289163A CN 00133402 CN00133402 CN 00133402 CN 00133402 A CN00133402 A CN 00133402A CN 1289163 A CN1289163 A CN 1289163A
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- water
- water pipe
- cutting
- iron core
- free device
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- Bathtubs, Showers, And Their Attachments (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The leakage protector includes water pipe, amplification circuit, free-tripper, power cutting-off and water cutting-off mechanism and testing device, in which the water cutting-off mechanism is mounted on the water pipe, the free-tripper can simultaneously make on-and-off control of power-cutting-off and water cutting-off mechanism, on said water pipe an inductor for detecting that the water flow running in the water pipe is charged or not. The described inductor possesses an iron core made of permalloy, on the iron core the seccondary winding is winded, and the centre of said iron core is placed in the water pipe. Said leakage protector not only can prevent electroshock failure due to internal electric equipment failure, but also can prevent electroshock failure due to external power supply.
Description
The present invention relates to Electrical Safety resist technology field, the particularly a kind of shower relevant and the leakage protector of similar electrical equipment use with electricity.
The existing shower relevant with electricity and the additional protection of similar electrical equipment Electrical Safety realize with the Electrical leakage protector; but these earth leakage protective devices can only detect between phase in the loaded line, the zero line and have or not residual current; when residual current occurring and reaching a certain numerical value; for example during 10mA; it just can move; cut off phase, the zero line of load, that is to say, it is only to be docked at that load after its hinders for some reason and the electric leakage accident that causes shields.Yet; only this protection of a host of facts proof is incomplete; even often owing to not having residual current between various factors load phase, the zero line; this electrical equipment and fault-free; earth leakage protective device also is normal; but still the casualty accident of can getting an electric shock, its reason is that the power supply outside the earth leakage protective device protection range has fault, causes ground wire, shell and the shower water of electrical appliance charged.For example under the situation of imperfect earth, insulation damages between power supply phase, the earth polar, ground wire connecting to neutral fault, user's transgression for using electricity is done loop etc. with ground wire or water pipe, the capital makes ground wire, shell or the water tank of electrical equipment charged, and just the water of the person causes the electric shock casualty accident to electric current by drenching extremely during shower.This accident earth leakage protective device exactly can't detect and draws, thereby also just can not cut off load power source, even turn-offed load power source phase, zero line, also can't cut off the electric current of being introduced by ground wire or shell in the current, does not stop the electric shock casualty accident.
The object of the present invention is to provide a kind of more comprehensively, more effective leakage protector, it not only can prevent because of the caused electric shock accidents of the fault of electrical equipment own, and can also prevent the electric shock accidents that power failure caused beyond the electrical equipment.
The objective of the invention is to realize: a kind of leakage protector by following technical scheme; comprise water pipe, amplifying circuit, trip free device, power cutoff mechanism, the mechanism of cutting off the water supply, experimental rig; the mechanism of cutting off the water supply is contained on the water pipe; the trip free device carries out switching control simultaneously to power cutoff mechanism, the mechanism of cutting off the water supply, and also is provided with on this water pipe and can detects the inductor whether current that flow through in the water pipe have electric current.Described inductor is made up of iron core and secondary winding, and this iron core is made by beryllium Mo alloy or amorphous alloy or ultramicro-crystal alloy material, is wound with secondary winding on this iron core, and this iron core center hub is in detected water pipe.Described inductor secondary winding output is connected with input amplifier, controllable silicon that is connected with trip free device coil two ends of amplification circuit output end control, take off or hand-reset by this silicon controlled on-off State Control trip free device, trip free device and power cutoff mechanism mechanical connection, thereby realize the on-off state of power cutoff mechanism output, reach the purpose that control is switched on or switched off water, electricity.The described mechanism of cutting off the water supply adopts electromagnetically operated valve or tongs, when adopting electromagnetically operated valve, electromagnetically operated valve is connected with water pipe, the electromagnetic valve coil two ends are connected with the power cutoff mechanism output, control the electromagnetically operated valve water flowing or close water by the on-off of power cutoff mechanism, when adopting tongs, tongs directly links to each other with the trip free device by mechanical connection, detected tube of glue is passed in the tongs, the trip free device thread off with reset just can control this tongs open or close state, thereby the realization water flowing or the purpose of cutting off the water supply.
Essence of the present invention is directly to detect the current situation that directly contacts with human body, as long as current are charged, when might jeopardize user's personal safety, the capital is closed current immediately, or simultaneously power supply is closed, also have only and got rid of after the fault, power supply just can resume water supply.Specifically, do circlewise or the inductor iron core of other shapes directly is enclosed within on the water pipe, and the elementary winding of this water pipe as inductor, this water pipe can be metal tube or PAP or sebific duct.When the flowing water no current of water pipe, the just non-inductive voltage in inductor secondary winding two ends; When the flowing water of water pipe had electric current, induced voltage just appearred in its secondary winding two ends, and electric current is big more, and induced voltage is also high more.So, also just need not to go to detect between the phase of loaded line, zero line to have method now whether residual current is arranged.The mechanism of cutting off the water supply can adopt electromagnetically operated valve or tongs etc.When adopting electromagnetically operated valve, if the flowing water of water pipe does not have electric current or electric current less than the safe dose of setting, 5mA for example, then non-inductive voltage of inductor secondary winding or induced voltage are lower than operating value, and the trip free device just can not threaded off, and electromagnetically operated valve continues energising work.But when the flowing water of water pipe has greater than the electric current of setting the safe dose twice, 10mA for example, then inductor secondary induction voltage will make the trip free device thread off, and cuts off the power supply of electromagnetically operated valve simultaneously, and closed electromagnetic valve is also cut off the water supply immediately.If adopt tongs, then can control its folding by the push rod of trip free device, reach the purpose of water pipe water flow switch.Because release is a free handle, fault is not got rid of and cannot be resetted, also just cannot resume water supply automatically, only fix a breakdown, after the current vanishes, just can reset in the water, supply water again with manual mode, thereby guarantee that the water that directly contacts with human body is not charged, the generation of the casualty accident of more fully avoiding getting an electric shock.For electric heating shower; mains switch, the water mixing valve of electromagnetically operated valve is contained in the leakage protector and is independent of electric heater; only need operate leakage protector simply when making it shower; and need not to touch electric heater; add leakage protector and electric heater water pipe connecting and be and adopt plastic cement pipe or multiple tube, thereby the safety of guaranteeing shower person is in perfectly safe.
The present invention can increase a temperature sensing and answer device in its control circuit, in order to detect the water pipe leaving water temperature, just can cut off the water supply immediately when water temperature is too high, thereby avoid taking place the scald accident.
Advantage of the present invention and remarkable result are:
1, whether the leakage protector that is used for electric heating shower and similar electrical equipment is directly to detect the current that contact with human body to have; it need not to comprehend these electric currents at all and comes therefrom; as long as electric current reaches set point in the water; just cut off the water supply immediately and also cut off simultaneously the power supply of shower; whole process only needs 0.1 second; in time allow shower person break away from the harm of electric shock thereby the generation of more comprehensively, more effectively stopping human casualty accident.
2, before fault is got rid of, can not resume water supply, power, only after fixing a breakdown, the recovery operate as normal just can manual mode resets.
3, occur being enough to jeopardize the electric current of personal safety when water pipe flowing water, for example during 10mA, only need close current and isolate, just can ensure that it can not come to harm by the instant and charged water of shower person.Therefore, the present invention and appliance power are irrelevant, and itself institute wasted work rate is very little, and can adopt independent current source.In contrast, existing earth leakage protective device but needs to match with the power of electrical equipment, supportingly just has any problem for power is king-sized, particularly can not supporting miniature movable type and can make the directly additional protection earth leakage protective device of protection.Thereby range of application of the present invention is just more extensive, directly-heated type fast water heater for example, and power be difficult to have suitable earth leakage protective device to cooperate, and the present invention just can use up easily all more than 6 kilowatts.
4, this leakage protector both can be used as electrical accessorie and had been contained on the electric heater; also can with multiple compound mode as one independently product allow the user be applied on the different occasions; for example it and water mixing valve, mains switch are combined as a complete product, just can reach functions such as electrical shock protection, electronic effluent switch, adjusting water temperature.
Fig. 1 is the block diagram of one embodiment of the invention.
Fig. 2 is the system schematic that the present invention is applied to an embodiment on the closed water storage electric heater.
Fig. 3 is the system schematic that the present invention is applied to an embodiment on the open type storage water heater.
Fig. 4 is the system schematic that the present invention is applied to an embodiment on the Instant heating type quick electric water heater.
Fig. 5 is the system schematic that the present invention is applied to an embodiment on the forced-ventilated gas water heater.
Fig. 6 is the system schematic that the present invention is applied to an embodiment on the central type electric heater.
By following embodiment the present invention is further elaborated.
Embodiment 1:
Referring to shown in Figure 1; one embodiment of the invention, leakage protector is made up of water pipe 1, experimental rig (I) 2, amplifying circuit 3, trip free device 4, power cutoff mechanism 5, breaker 6, current transformer 7, experimental rig (II) 8, DC power supply 9, the mechanism 10 of cutting off the water supply, inductor 11.Whether charged inductor 11 is made up of iron core and the secondary winding on iron core in order to detect the current that flow through in the water pipe 1, and the inductor iron core of present embodiment adopts beryllium Mo alloy to make annular core.This inductor 11 is inserted in the detected water pipe 1.When the current of water pipe 1 are charged; inductor 11 secondary winding are just exported a voltage signal; amplify through amplifying circuit 3; compare and discriminating; when if electric current is greater than certain setting (for example 10mA) in the water; the threshold values that the voltage signal of inductor 11 output will set greater than amplifying circuit 3; level that is enough to make the controllable silicon SCR conducting of amplifying circuit 3 outputs; the controllable silicon SCR conducting; trip free device 4 is threaded off power cutoff mechanism 5; the mechanism 10 of cutting off the water supply moves simultaneously, opens breaker 6; cut off the electricity supply and close current; shower person is in time broken away from and electric contacting, be protected, the casualty accident of avoiding getting an electric shock takes place.Whether DC power supply 9 provides working power for amplifying circuit 3 grades, is connected to experimental rig (I) 2, experimental rig (II) 8 on inductor 11 summation current transformers 7 respectively, normal in order to produce the work of simulated action electric current checking leakage protector.
Embodiment 2:
Referring to shown in Figure 2, the present invention is applied to an embodiment on the closed water storage electric heater, and cold water enters through PAP 13 through PAP 12, hot water and mixes water valve 14, the usefulness that mixed warm water is flowed out for shower person's shower by water pipe 1.The water pipe 1 that the mechanism 10 of cutting off the water supply is housed passes inductor 11, has assemblied device 15 by current transformer 7, experimental rig (II) 8, amplifying circuit 3, trip free device 4, power cutoff mechanism 5 and breaker 6.Power line is connected on the prime of breaker 6, the back level of breaker 6 is connected with another section power line 16 that passes current transformer 7, power line 16 is connected to water heater 18 through the switch 17 of a bipolar break-make, and being connected to the mechanism 10 of cutting off the water supply through another switch 19, the secondary winding output of inductor 11 is connected to the input of amplifying circuit 3.When unexpected electric current has appearred in the current of water pipe 1; as long as this electric current reaches the operating value (for example 10mA) of setting; produced or introduced by water heater 18 electric leakages and need not to comprehend this electric current by ground wire or running water pipe; the induced voltage of 11 levels of inductor will make power cutoff mechanism 5, the mechanism 10 of cutting off the water supply moves simultaneously, immediately power supply and current is cut off the enforcement protection.Equally, the water heater electric leakage also can make the power line that passes current transformer 7 produce residual current, makes power supply and current cut off simultaneously, thereby reaches the purpose of general protection.Can cut off the power supply of water heater 18 separately by the switch 17 of bipolar break-make, the current that console switch 19 then can be controlled water pipe 1 separately open or close.Experimental rig (I) 2 can verify whether leakage protector work is normal, and experimental rig (I) 2 and experimental rig (II) 8 can be with same device (for example using experimental rig (II) 8) enforcements in parallel.
Embodiment 3:
Referring to shown in Figure 3, the present invention is applied to an embodiment on the open type water storage electric heater, it comprises water pipe 1, device 15, the mechanism 10 of cutting off the water supply, inductor 11, mixes water valve 14, switch 17,19, cold water inlet 20,21, hot water outlet pipe 13, this example is as different from Example 2: because open type electric water heater 22 delivery ports can not be closed, thereby the mechanism 10 of cutting off the water supply just can not be connected on the water pipe 1, and should be connected on the cold water inlet 20, perhaps load onto the mechanism of cutting off the water supply on water pipe 1 and 20 simultaneously, present embodiment adopts latter's mode.All the other structures and operation principle are identical with embodiment 2.
Embodiment 4:
Referring to shown in Figure 4, the present invention is applied to an embodiment on the instant electric water heater, and it comprises water pipe 1, current transformer 7, the mechanism 10 of cutting off the water supply, inductor 11, device 15, switch 19, cold water inlet 20.This example is as different from Example 2: the electric current of immediately heating water heater is quite big, but because itself is equipped with the current hydraulic pressure switch, has only current hydraulic pressure to exist power supply to connect automatically simultaneously.Thereby leakage protector need not have the water heater power supply on-off system, and its application is not influenced by its watt level yet.Implementation method is that outlet pipe 1 is passed inductor 11, also can pass current transformer 7 to power line simultaneously, and 10 in the mechanism of cutting off the water supply inserts on the water inlet pipe 20.When the current of water pipe 1 electric current occurs and reach a certain setting (for example 10mA), or the water heater power supply line is when the 10mA residual current occurring, the mechanism 10 of cutting off the water supply just closes water inlet immediately, water heater just outage immediately because current hydraulic pressure disappears also, water heater has in time interrupted charged shower water, allow shower person break away from the electric shock casualty accident, ensure its life security in moment (in 0.1 second).
Embodiment 5:
Referring to shown in Figure 5, the present invention is an embodiment who is applied on the forced-ventilated gas water heater, and it comprises water pipe 1, power cutoff mechanism 5, the mechanism 10 of cutting off the water supply, inductor 11, switch 19, cold water inlet 20.Because this type of water heaters 24 has the function that outage is just died and cut off the water supply and just die, therefore it can adopt the such embodiment of embodiment 3, in case electric leakage appears in forced-ventilated exhausting system power pack or other factors cause water pipe 1 charged can both cutting off the electricity supply immediately and current, water heater 24 has also been closed source of the gas automatically simultaneously, ensures shower person's life security.
Embodiment 6:
Referring to shown in Figure 6, it is the embodiment that the present invention is applied to the central heater system.Because the outlet that the central heater system has multichannel is supplied with the different location and is used.Thereby present embodiment is to load onto a leakage protector on the mixed water valve 14 of each delivery port, but needs cancellation current transformer 7 and experimental rig (II) 8, and power line also need not only to provide the power supply of tens watts of power for this protector to the water heater power supply.Whether present embodiment only is to have electricity to detect to the warm water that each EXIT POINT is supplied, in case when the electric current that reaches a certain setting (for example 10mA) is arranged, close the current of this delivery port immediately, allow the timely and charged moisture of shower person from, protected timely.Present embodiment is powerful leakage switch of adjunction on central heater simultaneously also, so that the fault of water heater timely powered-down when producing electric leakage own.
Claims (4)
1, a kind of leakage protector; comprise water pipe, amplifying circuit, trip free device, power cutoff mechanism, the mechanism of cutting off the water supply, experimental rig; the mechanism of cutting off the water supply is contained on the water pipe; the trip free device carries out switching control simultaneously to the power cutoff mechanism and the mechanism of cutting off the water supply, and it is characterized in that also being provided with on this water pipe detecting the inductor whether current that flow through in the water pipe have electric current.
2, leakage protector according to claim 1; it is characterized in that described inductor is made up of iron core and secondary winding; this iron core is made by beryllium Mo alloy or amorphous alloy or ultramicro-crystal alloy material, is wound with secondary winding on this iron core, and this iron core center hub is in detected water pipe.
3, leakage protector according to claim 1 and 2; it is characterized in that described inductor secondary winding output is connected with input amplifier; controllable silicon that is connected with trip free device coil two ends of amplification circuit output end control; thread off or hand-reset, trip free device and power cutoff mechanism mechanical connection by this silicon controlled on-off State Control trip free device.
4, according to claim 1 or 2 or 3 described leakage protectors; it is characterized in that the described mechanism of cutting off the water supply adopts electromagnetically operated valve or tongs; when adopting electromagnetically operated valve; electromagnetically operated valve is connected with water pipe; the electromagnetic valve coil two ends are connected with the power cutoff mechanism output; when adopting tongs, tongs directly links to each other with the trip free device by mechanical connection, and detected tube of glue is passed in the tongs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001334026A CN1162947C (en) | 2000-11-06 | 2000-11-06 | Leakage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001334026A CN1162947C (en) | 2000-11-06 | 2000-11-06 | Leakage protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1289163A true CN1289163A (en) | 2001-03-28 |
| CN1162947C CN1162947C (en) | 2004-08-18 |
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ID=4595698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001334026A Expired - Lifetime CN1162947C (en) | 2000-11-06 | 2000-11-06 | Leakage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1162947C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358204C (en) * | 2002-09-29 | 2007-12-26 | 樱花卫厨（中国）有限公司 | Leakage protector circuit for electric water heater |
| CN100568655C (en) * | 2006-03-27 | 2009-12-09 | 艾欧史密斯(中国)热水器有限公司 | Flow-limiting safety electric water heater |
| CN102117994A (en) * | 2010-12-08 | 2011-07-06 | 刘睿刚 | All-round leakage protection plug for monitoring live detectability of ground wire |
| CN102759198A (en) * | 2012-07-24 | 2012-10-31 | 广东威博电器有限公司 | Electronic anti-electric shock device for electric water heater |
| CN102954593A (en) * | 2012-11-06 | 2013-03-06 | 中山华帝燃具股份有限公司 | Electric leakage induction and protection control system on electric water heater |
| CN105371475A (en) * | 2015-12-23 | 2016-03-02 | 芜湖美的厨卫电器制造有限公司 | Water heater |
| CN107345712A (en) * | 2017-08-07 | 2017-11-14 | 佛山市顺德区乾铭电子科技有限公司 | The modular anti-electric shock apparatus and control method of a kind of water heater |
| CN108023330A (en) * | 2017-12-12 | 2018-05-11 | 广东万家乐燃气具有限公司 | Leakage protection method, apparatus and water heater |
-
2000
- 2000-11-06 CN CNB001334026A patent/CN1162947C/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358204C (en) * | 2002-09-29 | 2007-12-26 | 樱花卫厨（中国）有限公司 | Leakage protector circuit for electric water heater |
| CN100568655C (en) * | 2006-03-27 | 2009-12-09 | 艾欧史密斯(中国)热水器有限公司 | Flow-limiting safety electric water heater |
| CN102117994A (en) * | 2010-12-08 | 2011-07-06 | 刘睿刚 | All-round leakage protection plug for monitoring live detectability of ground wire |
| CN102759198A (en) * | 2012-07-24 | 2012-10-31 | 广东威博电器有限公司 | Electronic anti-electric shock device for electric water heater |
| CN102759198B (en) * | 2012-07-24 | 2015-10-21 | 广东威博电器有限公司 | A kind of electronic type anti-electric shock apparatus of electric heater |
| CN102954593A (en) * | 2012-11-06 | 2013-03-06 | 中山华帝燃具股份有限公司 | Electric leakage induction and protection control system on electric water heater |
| CN102954593B (en) * | 2012-11-06 | 2015-03-11 | 华帝股份有限公司 | Electric leakage induction and protection control system on electric water heater |
| CN105371475A (en) * | 2015-12-23 | 2016-03-02 | 芜湖美的厨卫电器制造有限公司 | Water heater |
| CN107345712A (en) * | 2017-08-07 | 2017-11-14 | 佛山市顺德区乾铭电子科技有限公司 | The modular anti-electric shock apparatus and control method of a kind of water heater |
| CN108023330A (en) * | 2017-12-12 | 2018-05-11 | 广东万家乐燃气具有限公司 | Leakage protection method, apparatus and water heater |
| CN108023330B (en) * | 2017-12-12 | 2019-11-08 | 广东万家乐燃气具有限公司 | Leakage protection method, apparatus and water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1162947C (en) | 2004-08-18 |
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Owner name: LIU RUIGANG Free format text: FORMER OWNER: LIU JINTAI Effective date: 20101224 |
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Free format text: CORRECT: ADDRESS; FROM: 528000 ROOM 302, NO.6, SIZHI ROAD, FOSHAN CITY, GUANGDONG PROVINCE TO: 528000 FOSHAN SUNCUPID ELECTRONIC FACTORY CO., LTD., NO.10, SIZHI ROAD, CHANCHENG DISTRICT, FOSHAN CITY, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20101224 Address after: The Silk Road Chancheng District Foshan city Guangdong province 528000 No. 10 Foshan xinjide Electronic Factory Co. Ltd. Patentee after: Liu Ruigang Address before: 302 room 6, 528000 Silk Road, Guangdong, Foshan, China Patentee before: Liu Jintai |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20040818 |