CN100425922C - Alternatively heated electric water heater - Google Patents
Alternatively heated electric water heater Download PDFInfo
- Publication number
- CN100425922C CN100425922C CNB200410044906XA CN200410044906A CN100425922C CN 100425922 C CN100425922 C CN 100425922C CN B200410044906X A CNB200410044906X A CN B200410044906XA CN 200410044906 A CN200410044906 A CN 200410044906A CN 100425922 C CN100425922 C CN 100425922C
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- Prior art keywords
- electric heater
- relay
- temperature controller
- water tank
- power supply
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 239000013078 crystal Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000005485 electric heating Methods 0.000 abstract 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 101100168117 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) con-8 gene Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The present invention relates to an improvement of a heating device of an electric water heater, which belongs to the technical field of a household electrical appliance. The electric water heater comprises at least two electric heating devices which are respectively arranged at the upper part and the lower part of a water tank, the electric heating devices are respectively connected with at least two relay contacts controlled by a thermostat in series, and at least two temperature detecting pieces of the thermostat are respectively arranged at the water tank position corresponding to the controlled electric heating devices; the electric heating device of the upper part is connected with a power supply by the first relay contact controlled by the thermostat, the electric heating device of the lower part is connected to a power supply by the second relay contact controlled by the thermostat, and the first relay contact and the second relay contact are in circuit interlocking. As the upper heating device and the lower heating device of the present invention do not simultaneously work always, a temperature controlling zone is reasonably arranged, scientific control measures are taken, and hence, the high heating purpose is rapidly realized.
Description
Technical field
The present invention relates to a kind of electric heater, especially a kind of electric heater that alternately heats by two torches belongs to household electrical appliance technical field.
Background technology
Electric heater is a kind of water heater that generally uses.Usually, the water tank bottom of traditional positive displacement electric heater is equipped with an electrically heated rod.Need the long period heating after the energising, just can make the water temperature of whole water tank reach design temperature, so the user there is inconvenience when using more.
For the problem of Fast Heating, people have proposed improvement projects such as increase heating power.Wherein the most representative with the disclosed technical solution of Chinese patent that application number is 98124962.0, the applying date is 1998.11.25.The electric heater of this patent is provided with at least two heaters in water storage bag, one of them is installed in water tank is separated in the inner core of two chambers, one of two heaters are preheating to room temperature with water inlet, and another heater that is installed in the inner core then is heated to water outlet temperature required.When switching device shifter wherein can be realized two heaters or alternation, thereby the power of two heaters can be set as wide as possible in the scope that electrical network allows.It is introduced, can satisfy the needs of the quick and a large amount of waters of people so preferably.Yet, to compare with the long-pending formula electric heater of tradition, this electric heater is complex structure not only, and anufacturability is poor; And with regard to its switching controls principle, actual is that positive displacement is combined with the directly-heated type heating, the water that promptly will enter water tank earlier is heated to room temperature and insulation, when using, further be heated to the water in the inner core temperature required again, the problem one of its existence is that room temperature is when low, leaving water temperature is difficult to reach necessary requirement, and is especially all the more so when big water consumption; Two is that two heaters exist the state work simultaneously, so causes the tripping operation that overloads during practical application easily.
Summary of the invention
The technical problem that will solve of the present invention is: at the shortcoming of above prior art existence, a kind of alternative expression heating electric heater is proposed, the natural heat characteristic of this water heater scientific utilization water, rationally adopt control circuit, can keep shortening the heat time heating time before using under the constant situation of traditional positive displacement electric heater structure and power consumption substantially.
In order to solve above technical problem, alternative expression heating electric heater of the present invention comprises at least two electric heater units that are installed in water tank upper and bottom respectively, described electric heater unit is connected with the relay normally-closed contact of independent temperature controller control respectively, the top electric heater unit connects power supply by the first relay normally-closed contact of top temperature controller control, the bottom electric heater unit by the control of bottom temperature controller the second relay normally-closed contact and connect power supply with the 3rd relay normally open contact of the first relay normally-closed contact circuit interlock.
Like this, when water-heater water tank was filled with cold water and started working, last heater at first started, the water on heating water tank top.The heater of bottom is ready by pining down of temperature controller.Because water is the non-conductor of heat, and in the time of 4 ℃ the density maximum, so water tank bottom water temperature do not influence the top water temperature, the water on top more just is heated to design temperature, the user just can bring into use hot water.Simultaneously, last temperature controller will be controlled the heater stop heating, and connect temperature controller down, by temperature controller control heater work down down, until reaching design temperature.
The user is because of after using hot water and making that cold water replenishes the inlet water tank bottom, and temperature of lower reduces, and top is replenished by the water of original lower heating, still is in design temperature, therefore goes up heater still not work, and following temperature controller is then controlled down heater work.Hot water uses in a large number in water tank, makes when the top water temperature is lower than design temperature, and last temperature controller is connected and gone up heater work, and pins down cut-out heater down automatically, when the top water temperature reaches design temperature once more, just repeats above process.
Because upper and lower heater of the present invention can not worked all the time simultaneously, so the heating power that uses is constant, but because scientifically be provided with the temperature control zone, and rational control measure have been taked, therefore the alternately heating that the ingenious time of having realized interts has shortened heat time heating time, has reduced thermal losses.And the present invention has kept the original shape and the structure of water heater substantially, so good manufacturability.
In a word, the present invention has not only broken dependence and has added the circle of high-power raising firing rate, and has walked out the mistaken ideas that water tank is isolated, and has rationally utilized the natural characteristic of water, with design simply cleverly, obviously improved the pre-hot property of positive displacement electric heater, both avoided the trouble of user's increase-volume, helped saving energy and reduce the cost, be convenient to again implement, safe and reliable, compared with prior art, have outstanding substantive distinguishing features and obvious improvement.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the embodiment of the invention one.
Fig. 2 is the circuit theory diagrams of Fig. 1 embodiment.
Fig. 3 and Fig. 4 are respectively that the embodiment of the invention two is weak, the circuit theory diagrams of strong power part.
The specific embodiment
Embodiment one
The alternative expression heating electric heater of present embodiment is equipped with two electrically heated rods 3 and 5 respectively in the upper and lower of water-heater water tank 1 as shown in Figure 1.Two electrically heated rods 3 and 5 are respectively by independent temperature controller 2 and 4 controls.Its control section adopts popular electrical equipment control mode shown in Figure 2, and last electrically heated rod 3 connects power supply by the relay normally-closed contact 8 of last temperature controller control.The thermometric device of this temperature controller be installed in the corresponding water tank upper of the electrically heated rod of controlling.The top temperature controller is when passing through normally-closed contact relay 8 and top electrically heated rod 3 is connected, also connect the normally-closed contact relay 9 of bottom temperature controller, and then connect with following electrically heated rod 5 by normally opened contact relay 7 with these normally-closed contact relay 8 circuit interlocks.In other words, top electrically heated rod 3 connects power supply by first relay, 8 normally-closed contacts of top temperature controller control, bottom electric heater unit 5 by the control of bottom temperature controller second relay, 9 normally-closed contacts and connect power supply with the 3rd relay 7 normally opened contacts of first relay, 8 normally-closed contact circuit interlocks.
When water-heater water tank was filled with cold water and started working, last heating rod 3 started the water on heating water tank 1 top earlier.This at present heating rod 5 be subjected to pining down of normally opened contact in the temperature controller, be ready.After the water of water tank upper is heated to design temperature rapidly (user can bring into use hot water), last temperature controller normally-closed contact relay 8 will be controlled heating rod 3 and stop heating, closed normally opened contact 7 of while, connect temperature controller down, by the normally-closed contact relay 9 controls heating rod 5 device work down of temperature controller down, water temperature also reaches the setting requirement until the water tank bottom.
After hot water consumption made that cold water replenishes the inlet water tank bottom, the water tank temperature of lower reduced, and top still is in design temperature, therefore goes up heating rod still not work, and the normally-closed contact relay 9 controls heating rod work down of temperature controller down, until reaching set water temperature.
When hot water in the water tank when in a large number making that the top water temperature is lower than design temperature, the normally-closed contact relay 8 of last temperature controller is connected, last heating rod work, and, reach design temperature once more until the top water temperature by heating rods under normally opened contact relay 7 automatic cut-outs of interlocking.
Like this, keeping improving firing rate under the constant situation of power consumption, therefore can satisfy user's demand better.In addition, the electric heater of present embodiment also is connected to superhigh temperature protection controller 6 at power end, plays the effect of double insurance.
Embodiment two
Present embodiment is an improved alternative expression heating electric heater on intelligent-control electrothermal hydrophone basis.Being provided with of its heater, thermometric device is all identical with embodiment one.Different is that control section adopts the temperature control circuit that upper and lower temperature controller is integrated in single-chip microcomputer.
As shown in Figure 3, upper and lower thermometric device connects detection signal input 20 and 21 pin that model is the singlechip chip U1 of MC68HC908JL3 by 6 and 5 ports of plug receptacle CON8 respectively, and the control output end 22 of corresponding detection signal input 20 of this singlechip chip and 21 pin 1 and 23 pin are respectively by the execution loop J in 3, the 4 pin map interlinkings 4 of corresponding socket CON9 among socket CON8 and Fig. 4.This execution loop mainly is made of three triode T1, T2, the separately-driven relay J 1 of T3, J2, J3.The 12V power end connects the colelctor electrode of three triode T1, T2, T3 respectively by three relay J 1, J2, the J3 of parallel connection, the grounded emitter of these three triodes, the base stage of the first triode T1 and the second triode T2 3,4 pin of socket CON9 in base resistance map interlinking 4 socket circuit I separately respectively wherein, thus be controlled by two control output ends of single-chip microcomputer.Simultaneously, two control output ends of single-chip microcomputer are also through 3,4 pin of socket CON9, and connect the base stage of another triode T3 respectively through two diode D11, D7.Therefore, first and second relay J 1, the J2 of the first and second triode T1, T2 driving are formed on upper and lower thermometric device in fact respectively.And as seen from Figure 4, top electric heater unit 3 among the heater circuit F connects power supply by top thermometric device through the contact of monolithic processor controlled first relay J 1, and bottom electric heater unit 5 connects power supply by bottom thermometric device through monolithic processor controlled second relay J 2 contacts.SCM program control makes first relay J 1 and second relay J, 3 circuit interlocks.
In addition, A is the electrify restoration circuit that connects single-chip microcomputer among Fig. 3.B is the crystal oscillating circuit that connects single-chip microcomputer, and in order to improve accuracy regularly, 1 pin of single-chip microcomputer also is connected to the clock circuit of being made up of 4060B frequency division vibration chip and external crystal oscillation circuit thereof.C is a display circuit, and the demonstration output of single-chip microcomputer connects duty by triode in addition and shows light emitting diode L1-L4 through the double figures sign indicating number display U4 that 4060 shift register chip jointing temps show and failure code shows.D is provided with button inputting circuits for what be connected with singlechip chip, as required parameter such as input temp setting value.E is a power backup circuit, can keep being provided with when unexpected power down.G is a regulator rectifier circuit among Fig. 4.H is a self-checking circuit, can and start heating in start before the time self check of leaking electricity.
Obviously, present embodiment is by the single-chip microcomputer that has the temperature controller function concurrently, can realize identical with embodiment one thermal control that alternately adds more flexibly and easily, and compare with embodiment one, present embodiment can and alternately add thermal control with original Based Intelligent Control function and combine, and fully excavates the potentiality of single-chip microcomputer, makes water heater function more perfect, control more flexibly, use more convenient.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (6)
1. an alternative expression heats electric heater, comprise at least two electric heater units that are installed in water tank upper and bottom respectively, it is characterized in that: described electric heater unit is connected with the relay normally-closed contact of independent temperature controller control respectively, the top electric heater unit connects power supply by the first relay normally-closed contact of top temperature controller control, the bottom electric heater unit by the control of bottom temperature controller the second relay normally-closed contact and connect power supply with the 3rd relay normally open contact of the first relay normally-closed contact circuit interlock.
2. according to the described alternative expression heating of claim 1 electric heater, it is characterized in that: described electric heater unit is an electrically heated rod.
3. according to the described alternative expression heating of claim 2 electric heater, it is characterized in that: described power end also is connected to superhigh temperature protection controller.
4. an alternative expression heats electric heater, comprise first and second electric heater units that are installed in water tank upper and bottom respectively, it is characterized in that: described first and second electric heater units are connected respectively with the contact of first and second relays of temperature controller control, two thermometric devices of described temperature controller be installed in respectively with control on the corresponding water tank of first and second electric heater units, following position, on, following thermometric device is the detection signal input of order sheet machine chip respectively, two control output ends of described singlechip chip correspondence connect the execution loop that is made of two separately-driven first and second relays of triode respectively, the top electric heater unit connects power supply by top thermometric device through the contact of monolithic processor controlled first relay, the bottom electric heater unit connects power supply by bottom thermometric device through the contact of monolithic processor controlled second relay, and described single-chip microcomputer is in order to realize the circuit interlock of first relay and second relay.
5. according to the described alternative expression heating of claim 4 electric heater, it is characterized in that: described single-chip microcomputer is connected to the clock circuit of being made up of frequency division vibration chip and external crystal oscillation circuit thereof.
6. according to the described alternative expression heating of claim 5 electric heater, it is characterized in that: the demonstration output of described single-chip microcomputer connects the double figures sign indicating number tube display that shows as failure code through the shift register chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410044906XA CN100425922C (en) | 2004-06-03 | 2004-06-03 | Alternatively heated electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410044906XA CN100425922C (en) | 2004-06-03 | 2004-06-03 | Alternatively heated electric water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1704694A CN1704694A (en) | 2005-12-07 |
| CN100425922C true CN100425922C (en) | 2008-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410044906XA Expired - Lifetime CN100425922C (en) | 2004-06-03 | 2004-06-03 | Alternatively heated electric water heater |
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| Country | Link |
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| CN (1) | CN100425922C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980292A (en) * | 2011-09-02 | 2013-03-20 | 田菱精细化工（昆山）有限公司 | Device used for producing warm water |
| CN104110866A (en) * | 2014-04-28 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Water heater, heating unit thereof and alternate control method of water temperature in water heater |
| CN106468480B (en) * | 2015-08-20 | 2019-11-05 | 青岛经济技术开发区海尔热水器有限公司 | Electric water heater control method and electric water heater |
| CN108981181B (en) * | 2017-05-31 | 2023-10-31 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and heating control device and method thereof |
| CN112629026B (en) * | 2019-03-12 | 2022-07-05 | 青岛科技大学 | An electric water heater with cycle gradual start and stop of electric heating |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2187271Y (en) * | 1994-04-02 | 1995-01-11 | 陈志� | Computer programmable controller for hot-water furnace |
| CN2206422Y (en) * | 1994-11-29 | 1995-08-30 | 江西三星电子新技术公司 | Direct-heating type electric water heater |
| CN1238439A (en) * | 1998-06-04 | 1999-12-15 | 美国热水器公司 | Improved electric water heater with electronic control |
| DE20002444U1 (en) * | 2000-02-11 | 2000-04-13 | Stiebel Eltron Gmbh & Co Kg | Electric water heater |
| CN1254818A (en) * | 1998-11-25 | 2000-05-31 | 卢海南 | Electric water heater with switchable heating unit |
| CN2434701Y (en) * | 2000-04-03 | 2001-06-13 | 张涛 | Temp control regulating instrument |
| CN2709859Y (en) * | 2004-06-03 | 2005-07-13 | 艾欧史密斯(中国)热水器有限公司 | Alternation heating electric water heater |
-
2004
- 2004-06-03 CN CNB200410044906XA patent/CN100425922C/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2187271Y (en) * | 1994-04-02 | 1995-01-11 | 陈志� | Computer programmable controller for hot-water furnace |
| CN2206422Y (en) * | 1994-11-29 | 1995-08-30 | 江西三星电子新技术公司 | Direct-heating type electric water heater |
| CN1238439A (en) * | 1998-06-04 | 1999-12-15 | 美国热水器公司 | Improved electric water heater with electronic control |
| CN1254818A (en) * | 1998-11-25 | 2000-05-31 | 卢海南 | Electric water heater with switchable heating unit |
| DE20002444U1 (en) * | 2000-02-11 | 2000-04-13 | Stiebel Eltron Gmbh & Co Kg | Electric water heater |
| CN2434701Y (en) * | 2000-04-03 | 2001-06-13 | 张涛 | Temp control regulating instrument |
| CN2709859Y (en) * | 2004-06-03 | 2005-07-13 | 艾欧史密斯(中国)热水器有限公司 | Alternation heating electric water heater |
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| Publication number | Publication date |
|---|---|
| CN1704694A (en) | 2005-12-07 |
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