CN102927690A - Water heater and electric leakage and dry burning preventing detection method thereof - Google Patents
Water heater and electric leakage and dry burning preventing detection method thereof Download PDFInfo
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- CN102927690A CN102927690A CN2012104551767A CN201210455176A CN102927690A CN 102927690 A CN102927690 A CN 102927690A CN 2012104551767 A CN2012104551767 A CN 2012104551767A CN 201210455176 A CN201210455176 A CN 201210455176A CN 102927690 A CN102927690 A CN 102927690A
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- pipe joint
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Abstract
The invention relates to a water heater and an electric leakage and dry burning preventing detection method of the water heater. The water heater comprises an inner container, a heating pipe, a pipe joint and a control unit, wherein the heating pipe is installed in the inner container through a heating tube flange, the pipe joint comprises an insulating piece and two metal pieces which are embedded in the insulating piece and are mutually insulated, the metal pieces which are arranged in the pipe joint and connected with the inner container are provided with conductive components, and the conductive components are led out from the insulating piece and are electrically connected with a current or voltage detection circuit in the control unit. Therefore, detection for whether electric leakage of the water heater exists can be achieved by means of the conductive components on the metal pieces contacted with the inner container, an achieving mode is simple, as long as electric leakage exists, timely alarming can be achieved, and safety and reliability are strong. Meanwhile, by means of judging whether the conductive components and conductive components on the heating tube flange are in a conductive state, whether the water heater is in a dry burning state can be judged, electrodes are not needed to be arranged inside the inner container, and structural design is simple, installation and maintenance are convenient, and cost is saved.
Description
Technical field
The invention belongs to technical field of water heaters, specifically, relate to a kind of water heater with electric leakage and anti-dry measuring ability.
Background technology
At present, the detection of electrical leakage of water heater utilizes electric mutual inductor to detect the electrical leakage of water heater usually, and wherein an end connects ground wire, when electrical leakage surpasses safety value, and earth leakage protective device work.But, when this scheme can't protective grounding line earthing failure, the unexpected charged situation of water heater liner.Thereby, can't reach safe creepage protection function.
The anti-dry of existing water heater generally is that an anti-dry heating electrode is set on the top of heating tube, whether conducting judges whether water heater is in dry-fire condition between shell by detecting heating tube and the anti-dry heating electrode, but, this kind scheme need to arrange the anti-dry heating electrode installing component at inner bag, not only install and change complexity, and need to have preferably sealing and leak to prevent water heater, difficulty of processing and cost are higher.
Summary of the invention
The object of the present invention is to provide a kind of water heater, solved the technical problem that there is potential safety hazard in existing water heater detection of electrical leakage.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of water heater, comprise inner bag, heating tube, pipe joint and control module, heating tube is installed in the inner bag by the heating tube flange, pipe joint comprises insulating part and is flush-mounted in the insulating part and two metalworks of mutually insulated, wherein, metalwork and inner bag join, another metalwork and external water pipe join, be provided with conductive component on the metalwork that joins with inner bag in the described pipe joint, conductive component is drawn from insulating part and is electrically connected with curtage testing circuit in the control module.
In order to realize the burning prevention function of water heater, be provided with the conductive component that is electrically connected with power supply circuits in the described control module at the heating tube flange.
Preferably, the metalwork that joins with inner bag in the conductive component in the described pipe joint and the pipe joint is integral type structure or together the split-type structural of being mutually permanently connected.
Preferably, the conductive component on the described heating tube flange and heating tube flange are integral type structure or together the split-type structural of being mutually permanently connected.
Preferably, the conductive component on the conductive component in the described pipe joint and the described heating tube flange is sheet metal.
For the reminding user water heater is in electric leakage or dry-fire condition, control module also is connected with alarm unit.
Preferably, described alarm unit is acousto-optic warning unit.
Based on the design of above-mentioned water heater, the present invention also provides a kind of method of water heater being carried out detection of electrical leakage, reads and judge the output electrical signals of described curtage testing circuit, if output electrical signals, is judged the water heater electric leakage greater than zero; If output electrical signals is zero, judge the water heater leakproof.
When water heater has burning prevention function when detecting simultaneously, the conductive component on the heating tube flange is electrically connected with power supply circuits in the control module, when control module is controlled power supply circuits and powered, does not carry out detection of electrical leakage; When control module control power supply circuits disconnect, carry out detection of electrical leakage, read and judge the output electrical signals of described curtage testing circuit, if output electrical signals, is judged the water heater electric leakage greater than zero; If output electrical signals is zero, judge the water heater leakproof.
Design based on above-mentioned water heater, the present invention also provides a kind of anti-dry detection method of water heater, described curtage testing circuit and described power supply circuits are electrically connected, disconnect the power supply output of power supply circuits, read and judge the output electrical signals of curtage testing circuit, when output electrical signals is zero, the control power supply circuits are the conductive component power supply on the described heating tube flange, read again and judge the signal of telecommunication of curtage testing circuit output, if the signal of telecommunication is greater than zero, judge not dry combustion method of water heater, if the signal of telecommunication equals zero, judge the water heater dry combustion method.
Compared with prior art, advantage of the present invention and good effect are: water heater of the present invention arranges conductive component at the metalwork of pipe joint, conductive component is drawn from insulating part, then this conductive component can directly touch the curtage that water heater is revealed, thereby, curtage testing circuit and this conductive component of control module are joined, can whether leak electricity to water heater and detect, implementation is simple, as long as there is electric leakage in water heater, can in time make warning, security reliability is strong.Simultaneously, utilize conductive component on the pipe joint and the conductive component on the heating tube flange whether to be in conducting state, can judge whether water heater is in dry-fire condition, need to electrode be set in inner bag inside, decoration structure features simple design is installed and is changed conveniently, saves cost.The present invention realizes simply, and is convenient for installation and maintenance, can greatly reduce the installation and maintenance cost.
After reading by reference to the accompanying drawings the detailed description of embodiment of the present invention, other characteristics of the present invention and advantage will become clearer.
Description of drawings
Fig. 1 is the structural representation of an embodiment of water heater of the present invention;
Fig. 2 is the structure for amplifying schematic diagram of admitting pipe joint among Fig. 1 embodiment;
Fig. 3 is the structural representation of another embodiment of water heater of the present invention;
Fig. 4 is the theory diagram of water heater detection of electrical leakage of the present invention;
Fig. 5 is the theory diagram that water heater anti-dry of the present invention detects.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.
At present, water heater generally comprises inner bag 9, heating tube 8, pipe joint and control module, and the admitting pipe joint that joins with water inlet pipe 5 and the titting water outlet that joins with outlet pipe 10 are installed on the inner bag 9, and heating tube 8 is installed in the inner bag 9 by heating tube flange 6.Wherein, the water-in and water-out pipe joint damages the user for fear of electric leakage, and the water pipe that generally exposes directly is not connected with inner bag 9, but adopts insulating part 3, is generally moulding, and the threaded metalwork 1 of two joints, 2 embedding and injection moldings are arrived together.Wherein, metalwork 1 is mainly used in being connected with inner bag connection, and metalwork 2 is mainly used in and is connected water inlet pipe 5 or outlet pipe 10 connecting and using.
As shown in Figure 1, 2, to adopt admitting pipe joint to carry out detection of electrical leakage as example, the admitting pipe joint of water heater comprises insulating part 3 and is flush-mounted in two metalworks 1,2 in the insulating part 3, wherein, metalwork 1 inner bag direct by screw thread and water heater joins, and metalwork 2 joins by screw thread and water inlet pipe.Be connected with conductive component 4 on the metalwork 1, conductive component 4 can adopt common conducting metal, is made generally in sheet metal, and conductive component 4 draws from insulating part 3, conductive component 4 can with metalwork 1 integral body be processed as one formula structure, then embedding and injection molding; Also can be fixed on the metalwork 1 by fixture, embedding and injection molding then, fixture can be rivet, screw etc.; Also can be installed on the metalwork 1 by modes such as welding.
As shown in Figure 4, the implementation of water heater detection of electrical leakage is as follows: conductive component 4 joins by the inner bag 9 of metalwork 1 with water heater.If the water heater electric leakage, then inner bag 9 is charged, and the electric current of leakage or voltage can conduct to conductive component 4 by metalwork 1.Conductive component 4 is connected with bleeder circuit, and when water heater leaked electricity, the controller of control module detected the voltage signal of bleeder circuit output greater than zero, then controller control acousto-optic warning unit is reported to the police, reminding user is processed, and simultaneously, controller control water heater quits work.
Equally, the metalwork that joins at titting water outlet and inner bag arranges the earth leakage detection functions that conductive component also can be realized water heater, adopt titting water outlet to carry out detection of electrical leakage and to adopt admitting pipe joint to carry out the implementation of detection of electrical leakage identical, herein detailed description no longer.
As shown in Figure 3, heating tube flange 6 at water heater is connected with a conductive component 7, conductive component 7 can adopt common conducting metal, be made generally in sheet metal, wherein, conductive component 7 is connected for the integral type structure or by fixture with heating tube flange 6, and fixture can be rivet, screw etc.; Also can be fixedly connected with by modes such as welding.Conductive component 7 is electrically connected with power supply circuits in the control module, whether the controller control power supply circuits in the control module give conductive component 7 power supplies, the conductive component 4 that arranges on the metalwork 1 of admitting pipe joint is connected with bleeder circuit, bleeder circuit links to each other with the earth terminal of power supply circuits, the output of bleeder circuit and the controller of control module join, and whether the controller basis can detect the voltage signal control acousto-optic warning unit of bleeder circuit output is reported to the police.
When whether the detection water heater was in the electric leakage state, the controller control power supply circuits of control module disconnected, and do not give conductive component 7 power supplies.If the water heater electric leakage, then inner bag is charged, and the electric current of leakage or voltage can conduct to conductive component 4 by metalwork 1.Conductive component 4 is connected with bleeder circuit, and when water heater leaked electricity, the controller of control module detected the voltage signal of bleeder circuit output, and then controller control acousto-optic warning unit is reported to the police, and reminding user is processed, and simultaneously, controller control water heater quits work.
As shown in Figure 5, when whether the detection water heater is in dry-fire condition, whether at first detect water heater leaks electricity, if water heater leakproof, then the controller of control module control power supply circuits are closed, power supply circuits are to conductive component 7 power supplies on the heating tube flange, when water can touch heating tube 8, then because the existence of water, conductive component 4 on the pipe joint and the conductive component 7 on the heating tube flange are in conducting state, then bleeder circuit can be exported voltage division signal to controller, 8 heating of controller control heating tube; When water level is lower than heating tube 8, then heating tube 8 does not contact with water, and the conductive component 4 on the pipe joint and the conductive component 7 on the heating tube flange are in not on-state, and then bleeder circuit does not output signal to controller, controller control heating tube 8 does not heat, and has realized the anti-dry of water heater.
Equally, the metalwork that joins at titting water outlet and inner bag arranges detection of electrical leakage and the anti-dry measuring ability that conductive component also can be realized water heater, adopt titting water outlet to carry out the detection of detection of electrical leakage machine anti-dry identical with the implementation that the employing admitting pipe joint carries out detection of electrical leakage and anti-dry detection, no longer describe in detail herein.
In sum, the present invention can realize the earth leakage detection functions of water heater by the conductive component that arranges on the pipe joint, has ensured user's safety.By the anti-dry that can realize water heater that cooperates of conductive component on the conductive component on the pipe joint and the heating tube flange, implementation is simple and reliable.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. water heater, comprise inner bag, heating tube, pipe joint and control module, heating tube is installed in the inner bag by the heating tube flange, pipe joint comprises insulating part and is flush-mounted in the insulating part and two metalworks of mutually insulated, wherein, metalwork and inner bag join, another metalwork and external water pipe join, it is characterized in that: be provided with conductive component on the metalwork that joins with inner bag in the described pipe joint, conductive component is drawn from insulating part and is electrically connected with curtage testing circuit in the control module.
2. water heater according to claim 1 is characterized in that: be provided with the conductive component that is electrically connected with power supply circuits in the described control module on the described heating tube flange.
3. water heater according to claim 1 is characterized in that: the metalwork that joins with inner bag in the conductive component in the described pipe joint and the pipe joint is integral type structure or together the split-type structural of being mutually permanently connected.
4. water heater according to claim 2 is characterized in that: the conductive component on the described heating tube flange and heating tube flange are integral type structure or together the split-type structural of being mutually permanently connected.
5. water heater according to claim 2, it is characterized in that: the conductive component on the conductive component in the described pipe joint and the described heating tube flange is sheet metal.
6. the described water heater of any one according to claim 1-4, it is characterized in that: described control module is connected with alarm unit.
7. water heater according to claim 6 is characterized in that, described alarm unit is acousto-optic warning unit.
8. a method of water heater claimed in claim 1 being carried out detection of electrical leakage is characterized in that: read and judge the output electrical signals of described curtage testing circuit, if output electrical signals, is judged the water heater electric leakage greater than zero; If output electrical signals is zero, judge the water heater leakproof.
9. method of water heater claimed in claim 2 being carried out detection of electrical leakage, it is characterized in that: disconnect described power supply circuits to the power supply of the conductive component on the described heating tube flange, read and judge the output electrical signals of described curtage testing circuit, if output electrical signals, is judged the water heater electric leakage greater than zero; If output electrical signals is zero, judge the water heater leakproof.
10. one kind is carried out the method that anti-dry detects to water heater claimed in claim 2, it is characterized in that: described curtage testing circuit and described power supply circuits are electrically connected, disconnect the power supply output of power supply circuits, read and judge the output electrical signals of curtage testing circuit, when output electrical signals is zero, the control power supply circuits are the conductive component power supply on the described heating tube flange, read again and judge the signal of telecommunication of curtage testing circuit output, if the signal of telecommunication is greater than zero, judge not dry combustion method of water heater, if the signal of telecommunication equals zero, judge the water heater dry combustion method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210455176.7A CN102927690B (en) | 2012-11-14 | 2012-11-14 | Water heater and its electric leakage and anti-dry detection method |
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| CN201210455176.7A CN102927690B (en) | 2012-11-14 | 2012-11-14 | Water heater and its electric leakage and anti-dry detection method |
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| CN102927690A true CN102927690A (en) | 2013-02-13 |
| CN102927690B CN102927690B (en) | 2018-07-24 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103851794A (en) * | 2014-02-28 | 2014-06-11 | 谢冬来 | Water inlet pipe for electricity-proof wall and production method thereof |
| CN104515296A (en) * | 2014-11-27 | 2015-04-15 | 国家电网公司 | Electric heater having electric leakage detection function |
| CN106019052A (en) * | 2016-06-20 | 2016-10-12 | 珠海格力电器股份有限公司 | Water heater and electric leakage detection device and method thereof |
| 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 |
| CN107976604A (en) * | 2017-11-20 | 2018-05-01 | 深圳瑞湖科技有限公司 | Detect method, the device and water storage device of detection electric leakage of electric leakage |
| CN108444099A (en) * | 2018-03-19 | 2018-08-24 | 广东海信家电有限公司 | A kind of electric heater |
| 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 |
| CN111435037A (en) * | 2018-12-26 | 2020-07-21 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater and electric leakage detection method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103851794A (en) * | 2014-02-28 | 2014-06-11 | 谢冬来 | Water inlet pipe for electricity-proof wall and production method thereof |
| CN103851794B (en) * | 2014-02-28 | 2017-01-18 | 谢冬来 | Production method for water inlet pipe for electricity-proof wall |
| CN104515296A (en) * | 2014-11-27 | 2015-04-15 | 国家电网公司 | Electric heater having electric leakage detection function |
| CN106019052A (en) * | 2016-06-20 | 2016-10-12 | 珠海格力电器股份有限公司 | Water heater and electric leakage detection device and method thereof |
| 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 |
| CN107976604A (en) * | 2017-11-20 | 2018-05-01 | 深圳瑞湖科技有限公司 | Detect method, the device and water storage device of detection electric leakage of electric leakage |
| 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 |
| CN108444099A (en) * | 2018-03-19 | 2018-08-24 | 广东海信家电有限公司 | A kind of electric heater |
| CN111435037A (en) * | 2018-12-26 | 2020-07-21 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater and electric leakage detection method thereof |
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| CN102927690B (en) | 2018-07-24 |
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