CN102927690B - Water heater and electric leakage and dry burning prevention detection method thereof - Google Patents
Water heater and electric leakage and dry burning prevention detection method thereof Download PDFInfo
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- CN102927690B CN102927690B CN201210455176.7A CN201210455176A CN102927690B CN 102927690 B CN102927690 B CN 102927690B CN 201210455176 A CN201210455176 A CN 201210455176A CN 102927690 B CN102927690 B CN 102927690B
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- water heater
- conductive component
- heating tube
- liner
- pipe fitting
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 238000001514 detection method Methods 0.000 title claims abstract description 44
- 230000002265 prevention Effects 0.000 title abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 46
- 230000005611 electricity Effects 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000009841 combustion method Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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Abstract
The invention relates to a water heater and a leakage and dry burning prevention detection method thereof, wherein the water heater comprises an inner container, a heating pipe, a pipe joint and a control unit, the heating pipe is arranged in the inner container through a heating pipe flange, the pipe joint comprises an insulating part and two mutually insulated metal parts which are embedded in the insulating part, a conductive part is arranged on the metal part connected with the inner container in the pipe joint, and the conductive part is led out from the insulating part and is electrically connected with a current or voltage detection circuit in the control unit. Therefore, whether the water heater leaks electricity can be detected through the conductive parts on the metal parts in contact with the inner container, the implementation mode is simple, the alarm can be given in time as long as the water heater leaks electricity, and the safety and reliability are high. Meanwhile, whether the conductive part on the pipe joint and the conductive part on the heating pipe flange are in a conducting state or not can be used for judging whether the water heater is in a dry-burning state or not, an electrode does not need to be arranged in the inner container, the structural design is simple, the installation and the maintenance are convenient, and the cost is saved.
Description
Technical field
The invention belongs to technical field of water heaters, specifically, being to be related to a kind of carry to leak electricity and anti-dry detection function
Water heater.
Background technology
Currently, the detection of electrical leakage of water heater usually detects the electrical leakage of water heater, wherein one end using electric mutual inductor
Ground wire is connected, when electrical leakage is more than safety value, earth leakage protective device work.But the program can not the ground connection mistake of protective grounding line
When effect, the case where water heater liner surprisingly charges.Thus, it is unable to reach safe creepage protection function.
The anti-dry of existing water heater is usually that an anti-dry heating electrode is arranged on the top of heating tube, is heated by detecting
Whether be connected between the shell and anti-dry heating electrode of pipe to judge whether water heater is in dry-fire condition, still, this kind of scheme needs
Anti-dry heating electrode installing component is set on liner, not only installation is replaced complicated, but also need to have preferable leakproofness with
Prevent water heater leak, difficulty of processing and cost higher.
Invention content
The purpose of the present invention is to provide a kind of water heaters, and solving existing water heater detection of electrical leakage, there are security risks
Technical problem.
In order to solve the above technical problems, the present invention is achieved by the following scheme：
A kind of water heater, including liner, heating tube, pipe fitting and control unit, heating tube are pacified by heating tube flange
Loaded in liner, pipe fitting includes insulating part and in insulating part and two metalworks of mutually insulated, wherein a gold
Belong to part with liner to connect, another metalwork connects with external water pipe, sets on the metalwork to connect with liner in the pipe fitting
It is equipped with conductive component, conductive component is electrically connected from extraction in insulating part and with the current or voltage detection circuit in control unit.
In order to realize the burning prevention function of water heater, it is provided on heating tube flange and the power supply in described control unit
The conductive component of circuit electrical connection.
Preferably, the conductive component in the pipe fitting is an integral structure with the metalwork to connect with liner in pipe fitting
Or the split structure being mutually permanently connected together.
Preferably, the conductive component on the heating tube flange and heating tube flange are an integral structure or the company of being fixed to each other
The split structure being connected together.
Preferably, the conductive component in the pipe fitting and the conductive component on the heating tube flange are sheet metal.
In order to remind, user's water heater is in electric leakage or dry-fire condition, control unit are also associated with alarm unit.
Preferably, the alarm unit is acousto-optic warning unit.
Based on the design of above-mentioned water heater, the present invention also provides a kind of methods carrying out detection of electrical leakage to water heater, read
Take and judge the output electric signal of the current or voltage detection circuit, if output electric signal is more than zero, judgement water heater electric leakage；
If it is zero to export electric signal, water heater leakproof is judged.
When water heater has burning prevention function detection simultaneously, in the conductive component and control unit on heating tube flange
Power supply circuit electrical connection, when control unit control power supply circuit power supply when, without detection of electrical leakage；It is supplied when control unit controls
When circuit disconnects, detection of electrical leakage is carried out, reads and judge the output electric signal of the current or voltage detection circuit, if output
Electric signal is more than zero, judgement water heater electric leakage；If it is zero to export electric signal, water heater leakproof is judged.
Based on the design of above-mentioned water heater, the present invention also provides a kind of anti-dry detection methods of water heater, will be described
Current or voltage detection circuit and the power supply circuit are electrically connected, disconnect power supply circuit for electricity output, read and judge
The output electric signal of current or voltage detection circuit, when it is zero to export electric signal, control power supply circuit is the heating piping method
Conductive component power supply on orchid, then read and judge the electric signal of current or voltage detection circuit output, if electric signal is more than zero,
Judge water heater not dry combustion method, if electric signal is equal to zero, judges water heater dry combustion method.
Compared with prior art, the advantages and positive effects of the present invention are：Metal of the water heater of the present invention in pipe fitting
Conductive component is set on part, and conductive component is drawn from insulating part, then the conductive component can directly contact water heater leakage
Current or voltage, thus, by the current or voltage detection circuit of control unit and the conductive member, you can be to water heater
No electric leakage is detected, and realization method is simple, as long as water heater has electric leakage, you can make alarm in time, security reliability is strong.
Meanwhile utilizing the conductive component whether it is in a conductive state on the conductive component and heating tube flange on pipe fitting, you can judge
Whether water heater is in dry-fire condition, electrode, decoration structure features simple design need not be arranged inside liner, it is convenient that installation is replaced, section
Cost-saving.The present invention realizes simply, convenient for installation and maintenance, can substantially reduce installation maintenance cost.
After the detailed description of embodiment of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more
Add clear.
Description of the drawings
Fig. 1 is the structural schematic diagram of water heater one embodiment of the present invention；
Fig. 2 is the enlarged structure schematic diagram of admitting pipe joint in Fig. 1 embodiments；
Fig. 3 is the structural schematic diagram of another embodiment of water heater of the present invention；
Fig. 4 is the functional block diagram of water heater detection of electrical leakage of the present invention；
Fig. 5 is the functional block diagram of water heater anti-dry detection of the present invention.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with the accompanying drawings.
Currently, water heater generally comprises liner 9, heating tube 8, pipe fitting and control unit, be equipped on liner 9 with into
The admitting pipe joint that water pipe 5 connects and the titting water outlet to connect with outlet pipe 10, heating tube 8 are installed by heating tube flange 6
In liner 9.Wherein, water-in and water-out pipe fitting damages user in order to avoid leaking electricity, and general exposed water pipe is not direct
It is connect with liner 9, but uses insulating part 3, generally moulding, by the threaded metalwork 1 of two sections, 2 embedding and injection moldings to one
It rises.Wherein, metalwork 1 is mainly used for connecting with liner 9, and metalwork 2 is mainly used for connecting with external water inlet pipe 5 or outlet pipe 10
It uses.
Specific embodiment 1, by the specific embodiment to the water heater of earth leakage detection functions and detection of electrical leakage side
Method is specifically described：
As shown in Figure 1, 2, for carrying out detection of electrical leakage using admitting pipe joint, the admitting pipe joint of water heater includes exhausted
Edge part 3 and two metalworks 1,2 in insulating part 3, wherein metalwork 1 is by screw thread directly and in water heater
Courage connects, and metalwork 2 is connected by screw thread with water inlet pipe.Conductive component 4 is connected on metalwork 1, conductive component 4 can be used logical
Normal conductive metal is made generally in sheet metal, and conductive component 4 is drawn from insulating part 3, and conductive component 4 can be with metalwork 1
Overall processing is an integral structure, then embedding and injection molding；It can also be fixed on by fixing piece on metalwork 1, then inlay note
Modeling, fixing piece can be rivet, screw etc.；It can be also installed on metalwork 1 by modes such as welding.
As shown in figure 4, the realization method of water heater detection of electrical leakage is as follows：Conductive component 4 passes through metalwork 1 and water heater
Liner 9 connects.If water heater leaks electricity, liner 9 charges, and the electric current or voltage of leakage can be conducted by metalwork 1 to leading
Electrical components 4.Conductive component 4 is connected with bleeder circuit, and when water heater leaks electricity, the controller detection bleeder circuit of control unit is defeated
The voltage signal gone out is more than zero, then the alarm of controller control acousto-optic warning unit, reminds user's processing, meanwhile, controller control
Water heater is stopped.
Equally, the electric leakage of water heater can also be realized by conductive component being arranged on the metalwork that titting water outlet connects with liner
Detection function is carried out detection of electrical leakage using titting water outlet and is carried out the realization method phase of detection of electrical leakage using admitting pipe joint
Together, and will not be described here in detail.
Specific embodiment 2 has water heater, the leakage of detection of electrical leakage and anti-dry detection by the specific embodiment pair simultaneously
Electric detection method and anti-dry detection method are specifically described：
As shown in figure 3, there are one conductive components 7, conductive component 7 can be used for connection on the heating tube flange 6 of water heater
Common conductive metal, is made generally in sheet metal, wherein conductive component 7 is an integral structure or passes through with heating tube flange 6
Fixing piece connects, and fixing piece can be rivet, screw etc.；It can be also fixedly connected by modes such as welding.Conductive component 7 and control
Power supply circuit in unit is electrically connected, and whether the controller control power supply circuit in control unit powers to conductive component 7, water inlet
The conductive component 4 being arranged on the metalwork 1 of pipe fitting is connected with bleeder circuit, the ground terminal phase of bleeder circuit and power supply circuit
Even, the output end of bleeder circuit connects with the controller of control unit, and controller is according to whether be able to detect that bleeder circuit is defeated
The voltage signal control acousto-optic warning unit alarm of outlet.
When whether detecting water heater in leakage condition, the controller control power supply circuit of control unit disconnects, and does not give
Conductive component 7 is powered.If water heater leaks electricity, liner electrification, the electric current or voltage of leakage can be conducted extremely by metalwork 1
Conductive component 4.Conductive component 4 is connected with bleeder circuit, and when water heater leaks electricity, the controller of control unit detects bleeder circuit
User's processing is reminded in the voltage signal of output, then controller control acousto-optic warning unit alarm, meanwhile, controller controls hot water
Device is stopped.
As shown in figure 5, when whether detecting water heater in dry-fire condition, detect whether water heater leaks electricity first, if
Water heater leakproof, then control unit controller control power supply circuit be closed, power supply circuit is to the conduction on heating tube flange
Component 7 is powered, when water can touch heating tube 8, then due to the presence of water, and the conductive component 4 on pipe fitting and heating tube
Conductive component 7 on flange is in the conduction state, then bleeder circuit can export voltage division signal to controller, and controller control adds
Heat pipe 8 heats；When water level is less than heating tube 8, then heating tube 8 is not contacted with water, the conductive component 4 on pipe fitting and heating tube
Conductive component 7 on flange is in not on-state, then bleeder circuit does not output signal to controller, and controller controls heating tube
8 do not heat, and realize the anti-dry of water heater.
Equally, the electric leakage of water heater can also be realized by conductive component being arranged on the metalwork that titting water outlet connects with liner
Detection and anti-dry detection function carry out the detection of detection of electrical leakage machine anti-dry using titting water outlet and use admitting pipe joint
The realization method that progress detection of electrical leakage and anti-dry detect is identical, and and will not be described here in detail.
In conclusion the present invention can realize the earth leakage detection functions of water heater by the conductive component being arranged on pipe fitting,
The safety of user is ensured.Hot water can be achieved by the cooperation of conductive component and conductive component on heating tube flange on pipe fitting
The anti-dry of device, realization method are simple and reliable.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. the side of a kind of water heater, including liner, heating tube, pipe fitting and control unit, the liner is provided with heating
Pipe flange, the heating tube are installed on by heating tube flange in liner, and the heating tube has certain with the liner at the bottom
Spacing, pipe fitting include insulating part and in insulating part and two metalworks of mutually insulated, wherein a metalwork with
Liner connects, another metalwork connects with external water pipe, it is characterised in that：The metalwork to connect with liner in the pipe fitting
On be provided with conductive component, conductive component in insulating part from drawing and be electrically connected with the current or voltage detection circuit in control unit
It connects;
It is provided with the conductive component being electrically connected with the power supply circuit in described control unit on the heating tube flange;When water energy
When enough touching heating tube, the conductive component on conductive component and heating tube flange on pipe fitting is in the conduction state;Work as water
When position is less than heating tube, the conductive component on conductive component and heating tube flange on pipe fitting is in not on-state.
2. water heater according to claim 1, it is characterised in that：In conductive component and pipe fitting in the pipe fitting with
The split structure that the metalwork that liner connects is an integral structure or is mutually permanently connected together.
3. water heater according to claim 1, it is characterised in that：Conductive component on the heating tube flange and heating tube
The split structure that flange is an integral structure or is mutually permanently connected together.
4. water heater according to claim 1, it is characterised in that：Conductive component in the pipe fitting and the heating tube
Conductive component on flange is sheet metal.
5. water heater according to any one of claims 1-4, it is characterised in that：It is single that described control unit is connected with alarm
Member.
6. water heater according to claim 5, which is characterized in that the alarm unit is acousto-optic warning unit.
7. a kind of method carrying out detection of electrical leakage to water heater described in claim 1, it is characterised in that：Disconnect the power supply electricity
The output electricity of the current or voltage detection circuit is read and judges in power supply of the road to the conductive component on the heating tube flange
Signal, if output electric signal is more than zero, judgement water heater electric leakage；If it is zero to export electric signal, water heater leakproof is judged.
8. a kind of method carrying out anti-dry detection to water heater described in claim 1, it is characterised in that：By the electric current or
Voltage detecting circuit and the power supply circuit are electrically connected, disconnect power supply circuit for electricity output, read and judge electric current or
The output electric signal of voltage detecting circuit, when it is zero to export electric signal, control power supply circuit is on the heating tube flange
Conductive component is powered, then reads and judge the electric signal of current or voltage detection circuit output, if electric signal is more than zero, judgement heat
Hydrophone not dry combustion method judges water heater dry combustion method if electric signal is equal to zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210455176.7A CN102927690B (en) | 2012-11-14 | 2012-11-14 | Water heater and electric leakage and dry burning prevention detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210455176.7A CN102927690B (en) | 2012-11-14 | 2012-11-14 | Water heater and electric leakage and dry burning prevention detection method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102927690A CN102927690A (en) | 2013-02-13 |
| CN102927690B true CN102927690B (en) | 2018-07-24 |
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| CN201210455176.7A Active CN102927690B (en) | 2012-11-14 | 2012-11-14 | Water heater and electric leakage and dry burning prevention detection method thereof |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | Electric water 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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|---|---|---|---|---|
| CN2562130Y (en) * | 2002-07-31 | 2003-07-23 | 合肥荣事达有限责任公司 | Electric water heater against dry heating |
| CN2643217Y (en) * | 2003-08-13 | 2004-09-22 | 赵海 | Electric water heater with leakage absorbing and alarm units |
| CN101216213A (en) * | 2008-01-07 | 2008-07-09 | 何茂财 | Electrical water heater and its built-in insulation admitting pipe and built-in insulation outlet pipe |
| CN201163091Y (en) * | 2007-04-13 | 2008-12-10 | 海尔集团公司 | Anti-parching detection apparatus and anti-parching electric water heater |
| CN202048678U (en) * | 2011-04-20 | 2011-11-23 | 魏学惠 | Screwed pipe for water inlet/outlet pipe of water heater |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4446993B2 (en) * | 2006-11-02 | 2010-04-07 | 谷口ヒーターズ株式会社 | Electric heater for liquid |
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2012
- 2012-11-14 CN CN201210455176.7A patent/CN102927690B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2562130Y (en) * | 2002-07-31 | 2003-07-23 | 合肥荣事达有限责任公司 | Electric water heater against dry heating |
| CN2643217Y (en) * | 2003-08-13 | 2004-09-22 | 赵海 | Electric water heater with leakage absorbing and alarm units |
| CN201163091Y (en) * | 2007-04-13 | 2008-12-10 | 海尔集团公司 | Anti-parching detection apparatus and anti-parching electric water heater |
| CN101216213A (en) * | 2008-01-07 | 2008-07-09 | 何茂财 | Electrical water heater and its built-in insulation admitting pipe and built-in insulation outlet pipe |
| CN202048678U (en) * | 2011-04-20 | 2011-11-23 | 魏学惠 | Screwed pipe for water inlet/outlet pipe of water heater |
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| CN102927690A (en) | 2013-02-13 |
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