CN102374648A - Electric water heater - Google Patents
Electric water heater Download PDFInfo
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- CN102374648A CN102374648A CN2010102592316A CN201010259231A CN102374648A CN 102374648 A CN102374648 A CN 102374648A CN 2010102592316 A CN2010102592316 A CN 2010102592316A CN 201010259231 A CN201010259231 A CN 201010259231A CN 102374648 A CN102374648 A CN 102374648A
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Abstract
The invention discloses an electric water heater. The electric water heater comprises inner containers and a control part, and is characterized in that: the two inner containers are arranged side by side and are connected in series end to end; a group of corresponding heaters are arranged in each inner container; each group of heaters are provided with corresponding temperature sensors; a cold water inlet of one inner container is provided with a flow sensor which is used for sensing water flow to judge whether a system is in a used state or an unused state; the control part comprises a central processing unit (CPU) master control circuit; the temperature sensors corresponding to each group of heaters are connected with the CPU master control circuit; the flow sensor is connected with the CPU master control circuit; the CPU master control circuit is connected with a group of corresponding heaters in each inner container and is used for controlling the two groups of heaters through input signals of all the temperature sensors and the flow sensor; and the two groups of heaters can automatically, alternately and interactively heat water along with the change of the water temperature in the inner containers, and can automatically change the current heating power along with the difference of the current water temperatures of the inner containers, namely heat the water by using lower-grade power at high temperature and heat the water by using higher-grade power at low temperature. The electric water heater has the advantages of reducing waste of redundant heat and effectively saving energy.
Description
Technical field
The present invention relates to the technical field of electric heater, particularly a kind of electric heater.
Background technology
Existing electric heater, generally comprising an inner bag, heater and power control part branch is other accessory structure, and heater is installed in the inner bag, and such electric heater receives capacity limit in use and causes function singleness or consumes energy height; The water heater of low capacity can only be used for generally washing clear and a small amount of situation with hot water, and big capacity water heater is suitable for having a bath, and in order to guarantee the supply of whole day hot water, water heater must be in keeping warm mode in 24 hours; Power consumption is increased, if adopt the discontinuous heating, though but saves energy; But number of operations increases, and makes troubles to the user, and has a large amount of hot water in the courage; Can not definitely be incubated, then can lose great amount of heat energy, common water heater can only be selected a kind of temperature constant state; Can not adjust with the hot water amount seasonality,, use inconvenient so power consumption is high.
Summary of the invention
The purpose of this invention is to provide a kind of waste that reduces unnecessary heat; Two groups of heaters are along with the variation of the coolant-temperature gage of a left side/right inner bag at its place can replace interactive heating automatically; Also can accomplish with variation of temperature alternately interaction and frequency conversion type heating automatically simultaneously along with difference that should the current water temperature of inner bag is changed current heating power (adopt low one grade power heating when being high temperature, adopt high one grade power heating during low temperature again) automatically; Fully accomplish " heat is its usefulness to the greatest extent; use up its heat ", thereby more effective realization electric heater is energy-conservation use.
The object of the invention is realized through following technical scheme.
A kind of electric heater; Comprise inner bag and control section, it is characterized in that: said inner bag is provided with two, and two inner bags are arranged side by side and are connected in series end to end; One group of corresponding heater is all arranged in each inner bag; Every group of heater all is provided with corresponding temperature sensor, also disposes the flow that is used for water sensing in the import department of inner bag cold water and comes the judgement system to be in to use or the sensing flux device of obsolete state, and control section comprises the CPU governor circuit; Every group of corresponding temperature sensor of heater is connected with the CPU governor circuit; The sensing flux device is connected with the CPU governor circuit, and one group of corresponding in CPU governor circuit and each inner bag heater connects, and the CPU governor circuit is controlled two groups of heaters through the input signal of each temperature sensor and sensing flux device; Two groups of heaters are along with the variation of the coolant-temperature gage of the inner bag at its place can replace interactive heating automatically; Simultaneously also can be along with difference that should the current water temperature of inner bag is changed current heating power automatically, promptly adopt low one grade power heating during high temperature, have during low temperature and adopt high one grade power heating.
Also be provided with dry combustion method protective device and overtemperature prote in said two inner bags.
Warm antifreeze control module during said CPU governor circuit is provided with.
Said two inner bags under the use of Various Seasonal and user mode not, with the heating of variation of temperature automatic frequency-conversion formula, i.e. the corresponding different heating power of different temperatures.
Said discharge sensor judges that according to the induction of flow size being in use still is that obsolete state is realized corresponding different heating modes.
Said discharge sensor shuts down according to system in judgement a period of time after not using of flow automatically.
Said electric heater is provided with two groups of heaters in an inner bag, these two groups of heaters lay respectively at the alternately heating of interaction of the regional location of intake-outlet in the inner bag.
The present invention compared with prior art has the following advantages:
The present invention has one group of corresponding heater because system synthesis is two inner bags in each inner bag, two inner bags adopt the connected mode of series connection end to end; Two inner bags are arranged side by side, and every group of heater all has corresponding temperature sensor, and; Import department at cold water; Also disposed a sensing flux device, be used for the flow of water sensing, come the judgement system to be in and use or obsolete state; System still is obsolete state according to the use of judging, thereby confirms the different working modes of two groups of heaters;
System is set under spring, summer, four kinds of Various Seasonal situation of fall and winter according to the user; Automatically regulating basic water temperature is corresponding optimum Working, and in use, and two groups of heaters can change and alternately heating automatically along with its each self-corresponding water temperature that default has been got well; Where where just heat inadequately; Fully accomplish " heat is its usefulness to the greatest extent, uses up its heat ", significantly reduced the waste of unnecessary heat;
And two groups of heaters also can be along with the use and the non-user mode of Various Seasonal are changed different power automatically; Adopt low one grade power heating during high temperature; Have during low temperature and adopt high one grade power heating, be equivalent to change automatically the frequency conversion mode of heating of power along with variation of temperature.Thereby realize the product purpose of energy saving!
Description of drawings
Fig. 1 is electric heater embodiment part structural representation of the present invention;
Fig. 2 is electric heater embodiment two part-structure sketch mapes of the present invention;
Fig. 3 is an electric heater control section schematic diagram of the present invention;
Fig. 4 is an electric heater operation principle logical flow chart of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing electric heater of the present invention is described in further detail.
Electric heater of the present invention comprises inner bag and control section, and it is that inner bag is two courages that inner bag is provided with two; Shown in Fig. 1-2, inner bag 1,2, two inner bags of inner bag are arranged side by side and are connected in series end to end; One group of corresponding heater is all arranged in each inner bag; Every group of heater all is provided with corresponding temperature sensor, also disposes the flow that is used for water sensing in the import department of inner bag cold water and comes the judgement system to be in to use or the sensing flux device 9 of obsolete state, and wherein heater all adopts electrothermal tube.
Like Fig. 3; Control section comprises the CPU governor circuit, and every group of corresponding temperature sensor of heater is connected with the CPU governor circuit, and the sensing flux device is connected with the CPU governor circuit; One group of corresponding in CPU governor circuit and each inner bag heater connects; The CPU governor circuit is controlled two groups of heaters through the input signal of each temperature sensor and sensing flux device, and two groups of heaters be along with the variation of the coolant-temperature gage of a left side/right inner bag at its place can replace interactive heating automatically, also can (adopt low one grade power heating when being high temperature along with difference that should the current water temperature of inner bag is changed current heating power automatically simultaneously; Have during low temperature and adopt high one grade power heating); Accomplish fully to accomplish " heat is its usefulness to the greatest extent, uses up its heat " with variation of temperature alternately interaction and frequency conversion type heating automatically; Thereby the electric heater of more effectively realizing is energy-conservation use.Also be provided with dry combustion method protective device and overtemperature prote in two inner bags, warm antifreeze control module in the CPU governor circuit is provided with also is provided with electric heating device in two inner bags.
More specify as follows, like Fig. 1:
1) two courages (being double-core) are adopted as the piston type connected mode (being the bottom that inner bag 1 top is connected to inner bag 2) that inner bag 1 is connected with inner bag 2, and integral body does not almost have the slough, and hot water is almost all ejected, and the utilization rate of hot water is high;
2) bottom of inner bag 1 is a cooling water inlet; And electrothermal tube 3 (power is 3.2KW) and electrothermal tube 4 (power is 1.8KW) are placed in the middle and lower part at courage; With electrothermal tube 4 places temperature sensor 7 is arranged at electrothermal tube 3, be positioned at the top of electrothermal tube 3 and electrothermal tube 4, be used for the water temperature of sensing inner bag 1;
3) top of inner bag 2 is a hot water outlet; And electrothermal tube 5 (power is 3.2KW) and electrothermal tube 6 (power is 1.8KW) are placed in the middle and upper part at courage; With electrothermal tube 6 places temperature sensor 8 is arranged at electrothermal tube 5, be positioned at the middle part of electrothermal tube 5 and electrothermal tube 6, be used for the water temperature of sensing inner bag 2; At the cooling water inlet place of inner bag 2, also be useful on the sensing flux device 9 of sensing flow of inlet water, when detecting into the flow of water >=1.5L/min, be judged as user mode, otherwise, then be user mode not;
4) electrothermal tube 3 and electrothermal tube 4 and electrothermal tube 5 and electrothermal tube 6 are according to 2 li different water temperatures of inner bag 1 and inner bag and mutual alternation can be worked in no instance simultaneously;
5) duty is divided into use and does not use two states, and the heating mode under the two states is just arranged;
6) the basic water temperature of inner bag 1 and inner bag 2 is set to " spring, summer, autumn, winter " fourth gear basis water temperature also according to changes of seasons, and wherein the corresponding basic water temperature of Various Seasonal is:
55 ℃ of spring----; 40 ℃ of summers----; 65 ℃ of autumns----; 75 ℃ of winters----.
Like Fig. 4, operation principle is following:
One, user mode not
When not using; Inner bag 1 heating earlier when being heated to above inner bag 1 upper limit temperature, goes to inner bag 2 heating (switch conditions: only when being lower than inner bag 2 lower limit temperature when inner bag 2 water temperatures; Just change inner bag 2 heating over to); When inner bag 2 water temperatures were heated to above inner bag 2 upper limit temperature, system got into keeping warm mode (this moment, only showing inner bag 2 water temperatures);
Explain: system is set at inner bag 1 preferential state heated all the time; Promptly, when inner bag 1 water temperature is lower than inner bag 1 lower limit temperature, change inner bag 1 heating again at once over to as in inner bag 2 heating processes.
Two, user mode
During use; Inner bag 1 preferentially heats, and is heated to inner bag 1 ceiling temperature, when inner bag 2 water temperatures are lower than inner bag 2 lower limit temperatures, changes inner bag 2 heating over to; Be heated to and get into keeping warm mode when inner bag 2 water temperatures surpass inner bag 2 ceiling temperatures; In inner bag 2 heating processes, when inner bag 1 water temperature is lower than inner bag 1 lower limit temperature, change inner bag 1 heating (in user mode, display screen all shows inner bag 1 water temperature all the time) at once again over to.
Inner bag 1/ inner bag 2 Various Seasonal use with user mode not under corresponding bound temperature setting like following table (one)
Inner bag 1/ inner bag 2 Various Seasonal use with user mode not under, with the heating of variation of temperature automatic frequency-conversion formula, corresponding power setting such as following table (two)
The present invention can realize following function:
1, automatic stand-by, start
A. automatic stand-by: in 0.5h, do not detect continuous 2s >=get into holding state (close and show) during 1.5L/min discharge automatically.
B. Auto Power On: when detect continuous 2s >=during 1.5L/min discharge, the user mode that Auto Power On gets into last time, can change the state in season this moment.
2, confirm duty automatically
A. user mode: after opening water valve, detect the flow >=1.5L/min of water inlet and the water-flow signal of 2s continuously.At this moment, left heater is started working earlier, and the highest water temperature that is heated to corresponding season forwards right heater work again to, and display screen shows inner bag 1 water temperature always.
B. user mode not: when do not detect continuous 2s >=during 1.5L/min discharge, confirm as not user mode.
C. holding state: switch on behind the storage full water, light display screen, get into holding state; Opening power is defaulted as user mode not in spring first, afterwards, remembers the duty of the state of last time for this automatically.
4, dry combustion method protection
The temperature rise in 30 seconds of A, temperature rate-of-rise stops heating greater than 15 ℃.
B, demonstration E3, the every interval of buzzer piped 3 in 5 seconds, continuous 1 minute (12 times altogether).
When dropping to 75 ℃, C, temperature recover normal condition automatically.
5, overtemperature prote
When inner bag 1 temperature reaches 92 ℃, stop a left side (stopping), right heater, reduce to 85 ℃ until inner bag 1 water temperature and just remove this restriction.
When inner bag 2 temperature reach 92 ℃, stop left and right (stopping) heater, reduce to 85 ℃ until inner bag 2 water temperatures and just remove this restriction.
6, middle temperature is antifreeze: be concealed heating, display screen does not show heated condition.
After powering on first, when detecting inner bag 1/ inner bag 2 water temperatures and all be lower than 10 ℃, inner bag 1 preferentially heats; Stop heating when being heated to 10 ℃; Forward inner bag 2 heating again to, also stop heating when being heated to 10 ℃; When detecting inner bag 1/ inner bag 2 water temperatures again and be lower than 5 ℃, inner bag 1 preferentially heats, and stops heating when being heated to 10 ℃; Forward inner bag 2 heating again to, also stop heating when being heated to 10 ℃.
Claims (7)
1. electric heater; Comprise inner bag and control section; It is characterized in that: said inner bag is provided with two, and two inner bags are arranged side by side and are connected in series end to end, and one group of corresponding heater is all arranged in each inner bag; Every group of heater all is provided with corresponding temperature sensor; Also dispose the flow that is used for water sensing in the import department of inner bag cold water and come the judgement system to be in to use or the sensing flux device of obsolete state, control section comprises the CPU governor circuit, and every group of corresponding temperature sensor of heater is connected with the CPU governor circuit; The sensing flux device is connected with the CPU governor circuit; One group of corresponding in CPU governor circuit and each inner bag heater connects, and the CPU governor circuit is controlled two groups of heaters through the input signal of each temperature sensor and sensing flux device, and two groups of heaters are along with the variation of the coolant-temperature gage of the inner bag at its place can replace interactive heating automatically; Also can adopt low one grade power heating when difference that should the current water temperature of inner bag being changed current heating power automatically be high temperature simultaneously, have during low temperature and adopt high one grade power heating.
2. electric heater according to claim 1 is characterized in that: also be provided with dry combustion method protective device and overtemperature prote in said two inner bags.
3. electric heater according to claim 1 is characterized in that: warm antifreeze control module during said CPU governor circuit is provided with.
4. electric heater according to claim 1 is characterized in that: said two inner bags under the use of Various Seasonal and user mode not, with the heating of variation of temperature automatic frequency-conversion formula, i.e. the corresponding different heating power of different temperatures.
5. electric heater according to claim 1 is characterized in that: said discharge sensor judges that according to the induction of flow size being in use still is that obsolete state is realized corresponding different heating modes.
6. electric heater according to claim 1 is characterized in that: said discharge sensor shuts down according to system in judgement a period of time after not using of flow automatically.
7. electric heater according to claim 1 is characterized in that: said electric heater is provided with two groups of heaters in an inner bag, and these two groups of heaters lay respectively at the alternately heating of interaction of the regional location of intake-outlet in the inner bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102592316A CN102374648A (en) | 2010-08-20 | 2010-08-20 | Electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102592316A CN102374648A (en) | 2010-08-20 | 2010-08-20 | Electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102374648A true CN102374648A (en) | 2012-03-14 |
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ID=45793631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102592316A Pending CN102374648A (en) | 2010-08-20 | 2010-08-20 | Electric water heater |
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| Country | Link |
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| CN (1) | CN102374648A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110836A (en) * | 2014-07-01 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Water heater and control method thereof |
| CN104807196A (en) * | 2015-04-13 | 2015-07-29 | 广东美的暖通设备有限公司 | Heat pump water heater control method, controller and heat pump water heater |
| CN104833106A (en) * | 2015-05-28 | 2015-08-12 | 芜湖美的厨卫电器制造有限公司 | Control method and device of electric water heater and electric water heater |
| CN104848541A (en) * | 2015-05-25 | 2015-08-19 | 李新华 | Multi-liner air energy water heater |
| CN105004056A (en) * | 2014-04-22 | 2015-10-28 | 珠海格力电器股份有限公司 | Control method for water heater |
| CN106196575A (en) * | 2016-07-14 | 2016-12-07 | 芜湖美的厨卫电器制造有限公司 | Water heater and the control strategy of water heater |
| CN106196576A (en) * | 2016-07-14 | 2016-12-07 | 芜湖美的厨卫电器制造有限公司 | Water heater and the control strategy of water heater |
| CN106766218A (en) * | 2016-11-28 | 2017-05-31 | 博罗县堡斯莱电器有限公司 | Instant electric water heater and its control method of automatic shutdown |
| CN107339798A (en) * | 2016-05-03 | 2017-11-10 | 南京沃特电机有限公司 | A kind of more inner-tube structures and flat water heater |
| CN107796115A (en) * | 2016-08-31 | 2018-03-13 | 王焱 | A kind of vary with temperature and automatically alternately heating energy-saving control method and electric heating system |
| CN110701785A (en) * | 2019-10-31 | 2020-01-17 | 山东轻工职业学院 | Intelligent energy-saving hot water system and control method thereof |
| CN111380226A (en) * | 2018-12-28 | 2020-07-07 | 芜湖美的厨卫电器制造有限公司 | Heat storage type household electrical appliance control method and device and heat storage type water heater |
| CN111550929A (en) * | 2019-02-12 | 2020-08-18 | 芜湖美的厨卫电器制造有限公司 | Water heater and display control device and method thereof |
| CN111912096A (en) * | 2020-07-02 | 2020-11-10 | 华帝股份有限公司 | Control method of electric water heater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101004290A (en) * | 2006-01-16 | 2007-07-25 | 王焱 | Energy saving controlling method for electric water heater, and electrically heating system |
| CN201093700Y (en) * | 2007-05-11 | 2008-07-30 | 海尔集团公司 | Electric water heater with automatic speed changing capacity adding device |
| CN201273685Y (en) * | 2008-05-13 | 2009-07-15 | 袁世俊 | Full-automatic electromagnetic water heater for damp propelling water tank |
-
2010
- 2010-08-20 CN CN2010102592316A patent/CN102374648A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101004290A (en) * | 2006-01-16 | 2007-07-25 | 王焱 | Energy saving controlling method for electric water heater, and electrically heating system |
| CN201093700Y (en) * | 2007-05-11 | 2008-07-30 | 海尔集团公司 | Electric water heater with automatic speed changing capacity adding device |
| CN201273685Y (en) * | 2008-05-13 | 2009-07-15 | 袁世俊 | Full-automatic electromagnetic water heater for damp propelling water tank |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004056A (en) * | 2014-04-22 | 2015-10-28 | 珠海格力电器股份有限公司 | Control method for water heater |
| CN104110836A (en) * | 2014-07-01 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Water heater and control method thereof |
| CN104807196A (en) * | 2015-04-13 | 2015-07-29 | 广东美的暖通设备有限公司 | Heat pump water heater control method, controller and heat pump water heater |
| CN104848541A (en) * | 2015-05-25 | 2015-08-19 | 李新华 | Multi-liner air energy water heater |
| CN104833106A (en) * | 2015-05-28 | 2015-08-12 | 芜湖美的厨卫电器制造有限公司 | Control method and device of electric water heater and electric water heater |
| CN104833106B (en) * | 2015-05-28 | 2018-01-02 | 芜湖美的厨卫电器制造有限公司 | Control method, device and the electric heater of electric heater |
| CN107339798A (en) * | 2016-05-03 | 2017-11-10 | 南京沃特电机有限公司 | A kind of more inner-tube structures and flat water heater |
| CN106196576A (en) * | 2016-07-14 | 2016-12-07 | 芜湖美的厨卫电器制造有限公司 | Water heater and the control strategy of water heater |
| CN106196575A (en) * | 2016-07-14 | 2016-12-07 | 芜湖美的厨卫电器制造有限公司 | Water heater and the control strategy of water heater |
| CN106196575B (en) * | 2016-07-14 | 2019-03-22 | 芜湖美的厨卫电器制造有限公司 | The control strategy of water heater and water heater |
| CN106196576B (en) * | 2016-07-14 | 2019-03-22 | 芜湖美的厨卫电器制造有限公司 | The control strategy of water heater and water heater |
| CN107796115A (en) * | 2016-08-31 | 2018-03-13 | 王焱 | A kind of vary with temperature and automatically alternately heating energy-saving control method and electric heating system |
| CN106766218A (en) * | 2016-11-28 | 2017-05-31 | 博罗县堡斯莱电器有限公司 | Instant electric water heater and its control method of automatic shutdown |
| CN111380226A (en) * | 2018-12-28 | 2020-07-07 | 芜湖美的厨卫电器制造有限公司 | Heat storage type household electrical appliance control method and device and heat storage type water heater |
| CN111380226B (en) * | 2018-12-28 | 2023-01-06 | 芜湖美的厨卫电器制造有限公司 | Heat storage type household electrical appliance control method and device and heat storage type water heater |
| CN111550929A (en) * | 2019-02-12 | 2020-08-18 | 芜湖美的厨卫电器制造有限公司 | Water heater and display control device and method thereof |
| CN110701785A (en) * | 2019-10-31 | 2020-01-17 | 山东轻工职业学院 | Intelligent energy-saving hot water system and control method thereof |
| CN111912096A (en) * | 2020-07-02 | 2020-11-10 | 华帝股份有限公司 | Control method of electric water heater |
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Application publication date: 20120314 |