CN203036854U - Automatic descaling electric water heater - Google Patents
Automatic descaling electric water heater Download PDFInfo
- Publication number
- CN203036854U CN203036854U CN 201220673161 CN201220673161U CN203036854U CN 203036854 U CN203036854 U CN 203036854U CN 201220673161 CN201220673161 CN 201220673161 CN 201220673161 U CN201220673161 U CN 201220673161U CN 203036854 U CN203036854 U CN 203036854U
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- magnesium body
- relay
- magnesium
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Abstract
Provided is an automatic descaling electric water heater including an inner container, a water inlet pipe arranged outside the inner container, and further including an corrosion-proofing and descaling device arranged on the water inlet pipe, and a power supply unit supplying DC output in different polarities, The corrosion-proofing and descaling device includes a magnesium body and a metal body except the magnesium body, a channel for water to flow through is arranged between the magnesium body and the metal body, the positive and negative poles of the power supply unit are respectively connected with the metal body and the magnesium body. Therefore, the automatic descaling electric water heater provided can effectively remove the impurities accumulated on the magnesium body, ensures the anticorrosion capability of the magnesium body, and prolongs the service lifetime of the magnesium body.
Description
Technical field
The utility model relates to a kind of electric heater, especially the automatic desludging electric heater.
Background technology
In the prior art, the electric heater great majority are to utilize the magnesium rod be installed in the inner bag to come impurity in the adsorbed water as negative electrode, reach the purpose of scale removal, but the magnesium rod must regularly be changed, otherwise the impurity of absorption is more and more, causes magnesium rod antiseptic power to reduce, and service life is short.For overcoming these defectives, the automatic desludging electric heater is developed.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of automatic desludging electric heater will be provided, and can effectively remove the impurity that accumulates on the magnesium body, guarantees the antiseptic power of magnesium body, the service life of prolongation magnesium body.
The technical scheme that its technical problem that solves the utility model adopts is: comprise inner bag, water inlet pipe outside the tank is installed, also comprise the anticorrosion apparatus for eliminating sludge that is arranged on the water inlet pipe, the power supply unit that the output of opposed polarity direct current is provided, anticorrosion apparatus for eliminating sludge comprises the metallic object beyond magnesium body, the magnesium body, be provided with the passage that supplies water and flow through between magnesium body and the metallic object, the both positive and negative polarity of power supply unit and metallic object and magnesium body electrically connect respectively.
Described anticorrosion apparatus for eliminating sludge also comprises outer tube, connector, and the magnesium body is arranged in the outer tube, and metallic object is fixed in the magnesium body by connector, is provided with the passage that supplies water and flow through between magnesium body and the metallic object.
Described connector is connected with outer tube, and connector is provided with fixedly boss, the inside of magnesium body and is provided with the through hole that metallic object is installed, and the inwall of boss forms the passage that water supply is flow through with the outer wall of through hole.
Described power supply unit comprises voltage conversion unit and output unit, the alternating current that voltage conversion unit is used for inserting is converted to direct current and offers output unit, and the Direct current treatment after output unit is used for changing becomes the direct current for anticorrosion apparatus for eliminating sludge.
Described output unit comprises reversing unit and control module, and reversing unit is used for the direct current of voltage conversion unit output is carried out the output polarity switching, and control module switches for the output polarity to the commutation unit to be controlled.
Single-chip microcomputer U4 is provided with forward output signal MGT+ and negative sense output signal MGT-in the described control module.
Described reversing unit comprises diode D9, diode D10, resistance R 12, resistance R 13, triode Q6, triode Q7, relay R Y4, relay R Y5,
One end of control module output signal MGT+ and resistance R 12 electrically connects, the base stage of the other end of resistance R 12 and triode Q6 electrically connects, the grounded emitter of triode Q6, the colelctor electrode of triode Q6 electrically connects with the positive pole of diode D9 and a contact of relay R Y4 input respectively, another contact of the negative pole of diode D9 and relay R Y4 input connects+12V voltage, first contact of relay R Y4 output connects+12V voltage, the second contact ground connection, and the 3rd contact and metallic object electrically connect;
One end of control module output signal MGT-and resistance R 13 electrically connects, the base stage of the other end of resistance R 13 and triode Q7 electrically connects, the grounded emitter of triode Q7, the colelctor electrode of triode Q7 electrically connects with the positive pole of diode D10 and a contact of relay R Y5 input respectively, another contact of the negative pole of diode D10 and relay R Y5 input connects+12V voltage, first contact of relay R Y5 output connects+12V voltage, the second contact ground connection, and the 3rd contact and magnesium body electrically connect.
Described magnesium body is the magnesium pipe.
Described metallic object is stainless steel bar or zinc bar.
The utility model is compared the beneficial effect that produces with background technology: because the utility model adopts on the water inlet pipe of face outside the tank anticorrosion apparatus for eliminating sludge is set, the power supply unit of opposed polarity direct current output is provided, anticorrosion apparatus for eliminating sludge comprises the magnesium body, metallic object beyond the magnesium body, be provided with the passage that supplies water and flow through between magnesium body and the metallic object, the scheme that the both positive and negative polarity of power supply unit electrically connects with metallic object and magnesium body respectively, power supply unit provides the dc source of opposed polarity to the magnesium body, can effectively remove the impurity that accumulates on the magnesium body, guarantee the antiseptic power of magnesium body, prolong the service life of magnesium body.
Description of drawings: Fig. 1 is structural representation of the present utility model.
Fig. 2 is the sectional axonometric drawing of connector 2 among Fig. 1.
Fig. 3 is the circuit diagram of control module among Fig. 1.
Fig. 4 is the circuit diagram of voltage conversion unit among Fig. 1.
Fig. 5 is the circuit diagram of reversing unit among Fig. 1.
The specific embodiment: referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, present embodiment comprises inner bag, water inlet pipe outside the tank is installed, it is characterized in that also comprising the anticorrosion apparatus for eliminating sludge that is arranged on the water inlet pipe, the power supply unit 4 of opposed polarity direct current output is provided, anticorrosion apparatus for eliminating sludge comprises magnesium body 3, metallic object 5 beyond the magnesium body, be provided with the passage that supplies water and flow through between magnesium body 3 and the metallic object 5, the both positive and negative polarity of power supply unit 4 and metallic object 5 and magnesium body 3 electrically connect respectively, when not switching on, magnesium body 3 and metallic object 5 are mutually insulateds, the power supply of opposed polarity is provided by power supply unit 4, anticorrosion apparatus for eliminating sludge can carry out anticorrosion and two kinds of working methods of scale removal, can in time remove the impurity of accumulation on the magnesium body 3, prolong the service life of magnesium body 3.
Particularly, anticorrosion apparatus for eliminating sludge comprises outer tube 1, connector 2, magnesium body 3, metallic object 5, magnesium body 3 is arranged in the outer tube 1, metallic object 5 is fixed in the magnesium body 3 by connector 2, connector 2 is provided with the passage that supplies water and flow through, the outer wall of connector 2 is connected with outer tube 1 by set external screw thread, connector 2 is provided with the fixedly boss 22 of magnesium body 3, inside is provided with the through hole 21 that metallic object 5 is installed, the outer wall of the inwall of boss 22 and through hole 21 forms the passage that supplies water and flow through, boss 22 outer walls are provided with external screw thread, magnesium body 3 is connected with the outer wall thread of boss 22, through hole 21 inwalls are provided with internal thread, metallic object 5 is connected with through hole 21 inner threads, and outer tube 1 two ends are serially connected in the outer water inlet pipe of inner container of electric water heater by gas thread.Through hole 21 is positioned on the center of connector 2, and magnesium body 3 passes through connector 2 coaxial settings with metallic object 5.Magnesium body 3 in the present embodiment is that magnesium pipe, metallic object 5 are stainless steel bar.
Further, power supply unit 4 comprises voltage conversion unit 6 and output unit, the outside 220V alternating current that voltage conversion unit 6 is used for inserting is converted to direct current and offers output unit, and the Direct current treatment after output unit is used for changing becomes the direct current for anticorrosion apparatus for eliminating sludge.
Output unit comprises reversing unit and control module 7, and reversing unit is used for the direct current of voltage conversion unit output is carried out the output polarity switching, and control module 7 switches for the output polarity to the commutation unit to be controlled.Single-chip microcomputer U4 is provided with forward output signal MGT+ and negative sense output signal MGT-in the control module.
Reversing unit in the present embodiment comprises diode D9, diode D10, resistance R 12, resistance R 13, triode Q6, triode Q7, relay R Y4, relay R Y5, one end of control module output signal MGT+ and resistance R 12 electrically connects, the base stage of the other end of resistance R 12 and triode Q6 electrically connects, the grounded emitter of triode Q6, the colelctor electrode of triode Q6 electrically connects with the positive pole of diode D9 and a contact of relay R Y4 input respectively, and another contact of the negative pole of diode D9 and relay R Y4 input connects+12V voltage.First contact of relay R Y4 output connects+12V voltage, the second contact ground connection, and the 3rd contact and metallic object 5 electrically connect; One end of control module output signal MGT-and resistance R 13 electrically connects, the base stage of the other end of resistance R 13 and triode Q7 electrically connects, the grounded emitter of triode Q7, the colelctor electrode of triode Q7 electrically connects with the positive pole of diode D10 and a contact of relay R Y5 input respectively, another contact of the negative pole of diode D10 and relay R Y5 input connects+12V voltage, first contact of relay R Y5 output connects+12V voltage, the second contact ground connection, and the 3rd contact and magnesium body electrically connect.Existing commutation control mode is normally utilized specialized voltages commutation IC or is interconnected to realize by multicircuit relay, the circuit complexity, cost is higher, reversing unit in the present embodiment drives by the double relay mode, separate between the two-way relay, circuit is simple and reliable, and cost is lower.
During work, when electric heater is in running order, control module 7 electrically connects first contact of relay R Y4 output and the 3rd contact, second contact and the 3rd contact of relay R Y5 output electrically connect, it is relay R Y4 closure, relay R Y5 disconnects, the metallic object 5 of anticorrosion apparatus for eliminating sludge connects the 12V power supply, magnesium body 3 connects the 0V power supply, this moment, power supply unit 4 provided+power supply of 12V for anticorrosion apparatus for eliminating sludge two ends, magnesium body 3 and metallic object 5 form an electrolysis field, oxidation reaction takes place in the metallic object 5 as anode, and reduction reaction takes place as the magnesium body 3 of negative electrode, in this case, foreign ion in the hard water is absorbed by the magnesium body, thereby reaches the corrosion-resistant effect.
When the accumulative total of electric heater reaches 10 hours heat time heating time, electric heater enters cleaning prompting state, under this state, press acknowledgement key, magnesium rod automated cleaning 10 minutes, except switching on and shutting down, other keypress functions are locked, this moment, control module 7 electrically connected second contact of relay R Y4 output and the 3rd contact, first contact and the 3rd contact of relay R Y5 output electrically connect, be that relay R Y4 disconnects, relay R Y5 closure, the metallic object 5 of anticorrosion apparatus for eliminating sludge connects the 0V power supply, magnesium body 3 connects the 12V power supply, this moment, power supply unit 4 provided-power supply of 12V for anticorrosion apparatus for eliminating sludge two ends, magnesium body 3 and metallic object 5 opposite electrolysis field when forming with anticorrosion state, metallic object 5 is as negative electrode generation reduction reaction, and magnesium body 3 is as anode generation oxidation reaction, in this case, the carbonate deposition of accumulation is eliminated on the magnesium body 3, thereby reaches the effect of scale removal.
When the scale removal state is finished, control module 7 makes that second contact of relay R Y4 output electrically connects with the 3rd contact, get an electric shock in second contact of relay R Y5 output and the 3rd connects, be that relay R Y4 closure, relay R Y5 are also closed, magnesium body 3, the metallic object 5 of anticorrosion apparatus for eliminating sludge all connect the 0V power supply, electric heater quits work, when electric heater restarted work, above-mentioned anticorrosion and scale removal process began again to circulate.
Because the impurity that forms in anticorrosion process of magnesium body by regular disposing, so can not accumulate a lot of impurity on the magnesium body by the scale removal process, can not influence the antiseptic power of magnesium body, need not often change the magnesium body yet, can effectively improve the service life of magnesium body.
Claims (9)
1. automatic desludging electric heater, comprise inner bag, water inlet pipe outside the tank is installed, it is characterized in that also comprising the anticorrosion apparatus for eliminating sludge that is arranged on the water inlet pipe, the power supply unit (4) that the output of opposed polarity direct current is provided, anticorrosion apparatus for eliminating sludge comprises the metallic object (5) beyond magnesium body (3), the magnesium body, be provided with the passage that supplies water and flow through between magnesium body (3) and the metallic object (5), the both positive and negative polarity of power supply unit (4) and metallic object (5) and magnesium body (3) electrically connect respectively.
2. automatic desludging electric heater according to claim 1, it is characterized in that described anticorrosion apparatus for eliminating sludge also comprises outer tube (1), connector (2), magnesium body (3) is arranged in the outer tube (1), metallic object (5) is fixed in the magnesium body (3) by connector (2), is provided with the passage that supplies water and flow through between magnesium body (3) and the metallic object (5).
3. automatic desludging electric heater according to claim 2, it is characterized in that described connector (2) is connected with outer tube (1), connector (2) is provided with fixedly boss (22), the inside of magnesium body (3) and is provided with the through hole (21) that metallic object (5) is installed, and the outer wall of the inwall of boss (22) and through hole (21) forms the passage that water supply is flow through.
4. automatic desludging electric heater according to claim 3, it is characterized in that described power supply unit (4) comprises voltage conversion unit (6) and output unit, the alternating current that voltage conversion unit (6) is used for inserting is converted to direct current and offers output unit, and the Direct current treatment after output unit is used for changing becomes the direct current for anticorrosion apparatus for eliminating sludge.
5. automatic desludging electric heater according to claim 4, it is characterized in that described output unit comprises reversing unit and control module (7), reversing unit is used for the direct current of voltage conversion unit output is carried out the output polarity switching, and control module (7) switches for the output polarity to the commutation unit to be controlled.
6. automatic desludging electric heater according to claim 5 is characterized in that the interior single-chip microcomputer U4 of described control module (7) is provided with forward output signal MGT+ and negative sense output signal MGT-.
7. automatic desludging electric heater according to claim 6 is characterized in that described reversing unit comprises diode D9, diode D10, resistance R 12, resistance R 13, triode Q6, triode Q7, relay R Y4, relay R Y5,
One end of control module output signal MGT+ and resistance R 12 electrically connects, the base stage of the other end of resistance R 12 and triode Q6 electrically connects, the grounded emitter of triode Q6, the colelctor electrode of triode Q6 electrically connects with the positive pole of diode D9 and a contact of relay R Y4 input respectively, another contact of the negative pole of diode D9 and relay R Y4 input connects+12V voltage, first contact of relay R Y4 output connects+12V voltage, the second contact ground connection, the 3rd contact and metallic object (5) electrically connect;
One end of control module output signal MGT-and resistance R 13 electrically connects, the base stage of the other end of resistance R 13 and triode Q7 electrically connects, the grounded emitter of triode Q7, the colelctor electrode of triode Q7 electrically connects with the positive pole of diode D10 and a contact of relay R Y5 input respectively, another contact of the negative pole of diode D10 and relay R Y5 input connects+12V voltage, first contact of relay R Y5 output connects+12V voltage, the second contact ground connection, the 3rd contact and magnesium body (3) electrically connect.
8. according to each described automatic desludging electric heater of claim 1-7, it is characterized in that described magnesium body (3) is the magnesium pipe.
9. according to each described automatic desludging electric heater of claim 1-7, it is characterized in that described metallic object (5) is stainless steel bar or zinc bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220673161 CN203036854U (en) | 2012-12-10 | 2012-12-10 | Automatic descaling electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220673161 CN203036854U (en) | 2012-12-10 | 2012-12-10 | Automatic descaling electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203036854U true CN203036854U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220673161 Expired - Fee Related CN203036854U (en) | 2012-12-10 | 2012-12-10 | Automatic descaling electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203036854U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865017A (en) * | 2015-01-19 | 2016-08-17 | 青岛海尔智能技术研发有限公司 | Water heater |
| CN105865035A (en) * | 2015-01-19 | 2016-08-17 | 青岛海尔智能技术研发有限公司 | Water heater and control method thereof |
| CN105865034A (en) * | 2015-01-19 | 2016-08-17 | 青岛海尔智能技术研发有限公司 | Water heater and control method thereof |
| CN106322750A (en) * | 2015-06-30 | 2017-01-11 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater |
| CN106322749A (en) * | 2015-06-30 | 2017-01-11 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater |
| CN107883582A (en) * | 2016-09-29 | 2018-04-06 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater with external magnesium rod |
| CN107883568A (en) * | 2016-09-29 | 2018-04-06 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater with external magnesium rod |
-
2012
- 2012-12-10 CN CN 201220673161 patent/CN203036854U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865035B (en) * | 2015-01-19 | 2020-02-14 | 青岛海尔智能技术研发有限公司 | Water heater and control method thereof |
| CN105865035A (en) * | 2015-01-19 | 2016-08-17 | 青岛海尔智能技术研发有限公司 | Water heater and control method thereof |
| CN105865034A (en) * | 2015-01-19 | 2016-08-17 | 青岛海尔智能技术研发有限公司 | Water heater and control method thereof |
| CN105865017A (en) * | 2015-01-19 | 2016-08-17 | 青岛海尔智能技术研发有限公司 | Water heater |
| CN105865034B (en) * | 2015-01-19 | 2020-03-20 | 青岛海尔智能技术研发有限公司 | Water heater and control method thereof |
| CN106322750A (en) * | 2015-06-30 | 2017-01-11 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater |
| CN106322749B (en) * | 2015-06-30 | 2019-05-14 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater |
| CN106322750B (en) * | 2015-06-30 | 2019-05-31 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater |
| CN106322749A (en) * | 2015-06-30 | 2017-01-11 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater |
| CN107883568A (en) * | 2016-09-29 | 2018-04-06 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater with external magnesium rod |
| CN107883582A (en) * | 2016-09-29 | 2018-04-06 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater with external magnesium rod |
| CN107883582B (en) * | 2016-09-29 | 2020-12-22 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater with external magnesium rod |
| CN107883568B (en) * | 2016-09-29 | 2020-12-22 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater with external magnesium rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20171210 |