CN101813370A - Water storing type electric water heater and heating method thereof - Google Patents
Water storing type electric water heater and heating method thereof Download PDFInfo
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- CN101813370A CN101813370A CN 200910006562 CN200910006562A CN101813370A CN 101813370 A CN101813370 A CN 101813370A CN 200910006562 CN200910006562 CN 200910006562 CN 200910006562 A CN200910006562 A CN 200910006562A CN 101813370 A CN101813370 A CN 101813370A
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Abstract
The invention relates to a water storing type electric water heater for heating working fluid, and a heating method thereof. The water storing type electric water heater comprises a water storing tank for containing working fluid, a heating unit and a control module, wherein the heating unit is arranged in the water storing tank; the control module is arranged outside the water storing tank. The control module is electrically connected with the heating unit, and the preset temperature stored in the control module and the critical temperature below the preset temperature can be automatically adjusted according to the ambient temperature outside the water storing tank. When the temperature of the working fluid contained in the water storing tank is below or equal to the critical temperature, the control module starts the heating unit to heat the working fluid. When the temperature of the working fluid is higher than or equal to the critical temperature, the control module closes the heating unit.
Description
Technical field
The present invention relates to a kind of electric heater (electric water heater), and particularly relate to a kind of storage-type electric water heater (electric storage water heater) and heating means thereof.
Background technology
At present comparatively common electric heater can be divided into two kinds of instant electric water heater and storage-type electric water heaters haply.Wherein, the instant electric water heater does not have the function of stored hot water usually, and the hot water temperature that it provided is easier to reduce along with the increase of discharge, and storage-type electric water heater then can come stored hot water by its aqua storage tank (tank).Therefore, by contrast, storage-type electric water heater can provide temperature comparatively stable hot water.
It should be noted that the moisture storage capacity of storage-type electric water heater can be subject to the capacity of aqua storage tank.Therefore, when environment temperature is low (as cold snap time), the hot water amount who is stored in the aqua storage tank may not apply use.
For instance, when environment temperature was higher, the user only needed to add the water that makes that a spot of hot water can obtain proper temperature in cold water.Yet when environment temperature was low, the user just must add the water that makes that a large amount of hot water could obtain proper temperature in cold water.Therefore, the user must manually heighten the preset temperature of storage-type electric water heater in advance, with the use amount of minimizing hot water, and then avoids hot water amount's deficiency.In other words, storage-type electric water heater of the prior art comparatively inconvenience in the use.
Summary of the invention
In order to address the above problem, the invention provides a kind of storage-type electric water heater, its control module can be adjusted preset temperature and the critical-temperature that is stored in the control module automatically according to environment temperature.
In order to address the above problem, the present invention also provides a kind of heating means of storage-type electric water heater, to adjust preset temperature and the critical-temperature that is stored in the control module automatically according to environment temperature.
The invention provides a kind of storage-type electric water heater that is used for heated working fluid (working fluid), it comprises first aqua storage tank, first heating unit and control module.First aqua storage tank is used for holding working fluid.First heating unit is disposed in first aqua storage tank.Control module is disposed at outside first aqua storage tank, and is electrically connected at first heating unit.Control module is suitable for adjusting the critical-temperature that is stored in the preset temperature in the control module and is lower than preset temperature automatically according to the outer environment temperature of first aqua storage tank.When first temperature of the working fluid in being contained in first aqua storage tank was less than or equal to critical-temperature, control module started first heating unit, with heated working fluid.When first temperature was greater than or equal to preset temperature, control module was closed first heating unit.
In one embodiment of the invention, the first above-mentioned heating unit is electric heating tube or heat pump (heat pump).
In one embodiment of the invention, above-mentioned storage-type electric water heater also comprises second heating unit.Second heating unit is disposed in first aqua storage tank, and is electrically connected at control module.Control module is suitable for starting simultaneously first heating unit and second heating unit, with heated working fluid, and is suitable for closing simultaneously first heating unit and second heating unit.
In one embodiment of the invention, the second above-mentioned heating unit is electric heating tube or heat pump.
In one embodiment of the invention, above-mentioned storage-type electric water heater also comprises temperature sensing unit.Temperature sensing unit is disposed in first aqua storage tank, and is electrically connected at control module, is used for sensing first temperature.
In one embodiment of the invention, above-mentioned storage-type electric water heater also comprises temperature sensing unit.Temperature sensing unit is disposed at outside first aqua storage tank, and is electrically connected at control module, is used for sense ambient temperature.
In one embodiment of the invention, above-mentioned control module has the temperature setup unit, is used for setting preset temperature and critical-temperature.
In one embodiment of the invention, above-mentioned control module also has timing unit.Timing unit is suitable for cooperating with the temperature setup unit, to set different preset temperature and critical-temperature in the different periods.
In one embodiment of the invention, above-mentioned storage-type electric water heater also comprises second aqua storage tank, and second aqua storage tank has the pumping of the control module of being electrically connected at.Second aqua storage tank is disposed at outside first aqua storage tank, and is communicated to first aqua storage tank via pumping.When second temperature of the working fluid in being contained in second aqua storage tank was less than or equal to critical-temperature, control module started pumping, flowed to first aqua storage tank to drive working fluid by second aqua storage tank.
In one embodiment of the invention, above-mentioned storage-type electric water heater also comprises temperature sensing unit.Temperature sensing unit is disposed in second aqua storage tank, and is electrically connected at control module, is used for sensing second temperature.
In one embodiment of the invention, above-mentioned storage-type electric water heater also comprises the solar energy heating unit, and the solar energy heating unit has the pumping of the control module of being electrically connected at.The solar energy heating unit is disposed at outside first aqua storage tank, and is communicated between first aqua storage tank and the solar energy heating unit via pumping.When the 3rd temperature of the working fluid in being contained in the solar energy heating unit was greater than or equal to preset temperature, control module started pumping, with drive working fluid by the solar energy heating unit stream to first aqua storage tank.
In one embodiment of the invention, above-mentioned storage-type electric water heater also comprises temperature sensing unit.Temperature sensing unit is disposed in the solar energy heating unit, and is electrically connected at control module, is used for sensing the 3rd temperature.
In one embodiment of the invention, above-mentioned storage-type electric water heater also comprises the liquid level sensing cell.The liquid level sensing cell is disposed in first aqua storage tank, and is electrically connected at control module, is used for sensing to be contained in the liquid level of the working fluid in first aqua storage tank.When liquid level was less than or equal to critical altitude, control module was closed first heating unit.
The present invention also provides a kind of heating means of storage-type electric water heater, and it comprises the following steps.At first, sensing is contained in first temperature and the outer environment temperature of first aqua storage tank of the working fluid in first aqua storage tank.Then, adjust the critical-temperature that is stored in the preset temperature in the control module and is lower than preset temperature automatically according to environment temperature.Afterwards, judge whether first temperature is less than or equal to critical-temperature.If first temperature is less than or equal to critical-temperature, then control module starts first heating unit, with heated working fluid.
In one embodiment of the invention, the heating means of above-mentioned storage-type electric water heater also comprise and judge whether first temperature is greater than or equal to the step of preset temperature after control module starts first heating unit.Wherein, if first temperature is greater than or equal to preset temperature, then control module is closed first heating unit.
In one embodiment of the invention, if the first above-mentioned temperature is greater than or equal to above-mentioned critical-temperature, then control module does not start first heating unit.
In one embodiment of the invention, the formula of adjusting above-mentioned preset temperature and above-mentioned critical-temperature automatically is Ts '=Ts+ (25-Ta).Wherein, Ts is preset temperature or critical-temperature before adjusting, and Ts ' is adjusted preset temperature or critical-temperature, and Ta is an environment temperature.
In one embodiment of the invention, the heating means of above-mentioned storage-type electric water heater also comprised the following steps before adjusting preset temperature and critical-temperature automatically.A temperature setup unit of start-up control module, but and switch second heating unit to starting state.Wherein, the temperature setup unit can be used to set preset temperature and critical-temperature, and second heating unit then can be used to heated working fluid.
In one embodiment of the invention, the heating means of above-mentioned storage-type electric water heater are before judging whether first temperature is less than or equal to critical-temperature, also comprise the following steps: to stop to adjust automatically preset temperature and critical-temperature, the temperature setup unit of start-up control module, and switch second heating unit to status available.Wherein, the temperature setup unit can be used to set preset temperature and critical-temperature, and second heating unit then can be used to heated working fluid.
In one embodiment of the invention, the heating means of above-mentioned storage-type electric water heater are being switched second heating unit to status available, also comprise judging whether second temperature that is contained in the working fluid in second aqua storage tank is less than or equal to the step of critical-temperature.Wherein, if second temperature is less than or equal to critical-temperature, then control module starts a pumping of second aqua storage tank, flows to first aqua storage tank to drive working fluid by second aqua storage tank.
In one embodiment of the invention, the heating means of above-mentioned storage-type electric water heater also comprised the following steps before judging whether first temperature is less than or equal to critical-temperature.Stop to adjust automatically preset temperature and critical-temperature, the temperature setup unit and the timing unit of start-up control module, but and switch second heating unit to starting state.Wherein, timing unit can cooperate with the temperature setup unit, and to set different preset temperature and critical-temperature in the different periods, second heating unit then can be used to heated working fluid.
In one embodiment of the invention, the heating means of above-mentioned storage-type electric water heater are being switched second heating unit to status available, also comprise judging whether one second temperature that is contained in the working fluid in second aqua storage tank is less than or equal to the step of critical-temperature.Wherein, if second temperature is less than or equal to critical-temperature, then control module starts the pumping of second aqua storage tank, flows to first aqua storage tank to drive working fluid by second aqua storage tank.
In one embodiment of the invention, the heating means of above-mentioned storage-type electric water heater are being switched second heating unit to status available, also comprise judging whether the 3rd temperature that is contained in the working fluid in the solar energy heating unit is greater than or equal to the step of preset temperature.Wherein, if the 3rd temperature is greater than or equal to preset temperature, then control module starts the pumping of solar energy heating unit, with drive working fluid by the solar energy heating unit stream to first aqua storage tank.
In one embodiment of the invention, the heating means of above-mentioned storage-type electric water heater comprise that also sensing is contained in the step of the liquid level of the working fluid in first aqua storage tank after control module starts first heating unit.Wherein, when being less than or equal to critical altitude as if liquid level, control module is closed first heating unit.
Based on above-mentioned, storage-type electric water heater of the present invention can be adjusted preset temperature and the critical-temperature that is stored in the control module automatically according to environment temperature.Therefore, the user can not need along with Changes in weather is manually heightened the preset temperature and the critical-temperature of storage-type electric water heater in advance.
For above-mentioned feature and advantage of the present invention can be become apparent, a plurality of embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 illustrates the structural representation of a kind of storage-type electric water heater of one embodiment of the invention.
Fig. 2 illustrates the flow chart of a kind of heating means of the storage-type electric water heater among Fig. 1.
Fig. 3 A illustrates the structural representation of a kind of storage-type electric water heater of another embodiment of the present invention.
Fig. 3 B illustrates the structural representation of a kind of storage-type electric water heater of further embodiment of this invention.
Fig. 4 illustrates the calcspar of the control model of the control module among a kind of Fig. 3 of defaulting in of one embodiment of the invention.
Fig. 5 A is illustrated in the flow chart of the heating means under the automatic mode among Fig. 4.
Fig. 5 B is illustrated in the flow chart of the heating means under the constant temperature mode among Fig. 4.
Fig. 5 C is illustrated in the flow chart of the heating means under the timing constant temperature pattern among Fig. 4.
Fig. 5 D is illustrated in the flow chart of the heating means under the expansion circulation pattern among Fig. 4.
Fig. 5 E is illustrated in the flow chart of the heating means under the solar energy subsidy pattern among Fig. 4.
The primary clustering symbol description
100a, 100b, 100c: storage-type electric water heater
110,160: aqua storage tank
120a, 120b: heating unit
130: control module
132: the temperature setup unit
134: timing unit
140a, 140b, 140c, 140d: temperature sensing unit
150: the liquid level sensing cell
170: the solar energy heating unit
162,172: pumping
The specific embodiment
Fig. 1 illustrates the structural representation of a kind of storage-type electric water heater of one embodiment of the invention.Please refer to Fig. 1, storage-type electric water heater 100a comprises first aqua storage tank 110, the first heating unit 120a and control module 130.First aqua storage tank 110 can be used to hold working fluid.In addition, the first heating unit 120a for example is electric heating tube or heat pump, and it is disposed in first aqua storage tank 110, and can be used to heat the working fluid that is contained in first aqua storage tank 110.
In addition, control module 130 is disposed at outside first aqua storage tank 110, and is electrically connected at the first heating unit 120a.And control module 130 can be adjusted to preset temperature Ts1 ' and critical-temperature Ts2 ' with the preset temperature Ts1 that is stored in the control module 130 respectively with the critical-temperature Ts2 that is lower than preset temperature Ts1 automatically according to the environment temperature Ta outside first aqua storage tank 110.Then, after judgement was contained in first temperature T 1 and the relativeness between preset temperature Ts1 ' and the critical-temperature Ts2 ' of the working fluid in first aqua storage tank 110, control module 130 can be again by the first heating unit 120a heated working fluid.In other words, first temperature T 1 of working fluid can be held between preset temperature Ts1 ' and the critical-temperature Ts2 ' haply.Below will the method that control module 130 is come heated working fluid by the first heating unit 120a be described for an embodiment.
Fig. 2 illustrates the flow chart of a kind of heating means of the storage-type electric water heater among Fig. 1.Please refer to Fig. 1 and Fig. 2, in this embodiment, storage-type electric water heater 100a also can comprise two temperature sensing unit 140a that are electrically connected at control module 130,140b, wherein temperature sensing unit 140a is disposed in first aqua storage tank 110, and temperature sensing unit 140b then is disposed at outside first aqua storage tank 110.Therefore, storage-type electric water heater 100a can pass through temperature sensing unit 140a, and 140b is sensing first temperature T 1 and environment temperature Ta (S100) respectively.
Afterwards, the environment temperature Ta that control module 130 can be sensed according to temperature sensing unit 140b is adjusted to Ts1 ' with preset temperature Ts1 automatically, and automatically critical-temperature Ts2 is adjusted to Ts2 ' (S110).Then, control module 130 can judge whether first temperature T 1 is less than or equal to critical-temperature Ts2 ' (S120).If control module 130 judges that first temperature T 1 is greater than or equal to critical-temperature Ts2 ', then do not start the first heating unit 120a (S130).Yet, if judging first temperature T 1, control module 130 is less than or equal to critical-temperature Ts2 ', start the first heating unit 120a, with heated working fluid (S140).
Afterwards, control module 130 can judge whether first temperature T 1 is greater than or equal to preset temperature Ts1 ' (S150) again.Still be less than or equal to preset temperature Ts1 ' if control module 130 is judged first temperature T 1, then continue, and continue to judge whether first temperature T 1 is greater than or equal to preset temperature Ts1 ' (S150) by the first heating unit 120a heated working fluid (S160).If control module 130 judges that first temperature T 1 has been greater than or equal to preset temperature Ts1 ', then close the first heating unit 120a, to stop heated working fluid (S170).Afterwards, temperature sensing unit 140a, 140b can continue sensing first temperature T 1 and environment temperature Ta (S100), and control module 130 can repeat step (S110～S170).Therefore, first temperature T 1 of working fluid can be held between preset temperature Ts1 ' and the critical-temperature Ts2 ' haply.
For instance, control module 130 can be set at 55 ℃ with preset temperature Ts1 in advance, and critical-temperature Ts2 is set at 50 ℃.In addition, control module 130 also can be in advance be set at Ts '=Ts+ (25-Ta) with the formula that is used for adjusting automatically preset temperature and critical-temperature, wherein Ts is preset temperature Ts1 or critical-temperature Ts2 before adjusting, and Ts ' is adjusted preset temperature Ts1 ' or critical-temperature Ts2 ', and Ta is an environment temperature.
Therefore, if the environment temperature Ta that temperature sensing unit 140b is sensed is 35 ℃, can learn according to above-mentioned formula that then preset temperature Ts1 ' can equal 45 ℃, critical-temperature Ts2 then can equal 40 ℃.At this moment, first temperature T 1 of working fluid can be maintained between 40 ℃～45 ℃ haply.Identical, if the environment temperature Ta that temperature sensing unit 140b is sensed is 15 ℃, then preset temperature Ts1 ' can equal 65 ℃, critical-temperature Ts2 then can equal 60 ℃.At this moment, 1 of first temperature T of working fluid can be maintained between 60 ℃～65 ℃ haply.
In other words, control module 130 can be adjusted to preset temperature Ts1 ' and critical-temperature Ts2 ' with preset temperature Ts1 and critical-temperature Ts2 respectively according to environment temperature Ta automatically.Therefore, when environment temperature Ta was low, control module 130 can be heightened first temperature T 1 automatically, can manually heighten preset temperature Ts1 and the critical-temperature Ts2 of storage-type electric water heater 100a to make the user.Therefore, storage-type electric water heater 100a in the use can be comparatively convenient.In addition, when environment temperature Ta was higher, control module 130 also can be turned down first temperature T 1 automatically, to reduce the time of the first heating unit 120a heated working fluid.Therefore, storage-type electric water heater 100a can comparatively save the energy.
In addition, in this embodiment, storage-type electric water heater 100a also can comprise liquid level sensing cell 150.Liquid level sensing cell 150 is disposed in first aqua storage tank 110, is electrically connected at control module 130, and can be used to the liquid level that sensing is contained in the working fluid in first aqua storage tank 110.When liquid level was less than or equal to critical altitude, control module 130 can be closed the first heating unit 120a, to avoid the first heating unit 120a to damage because of temperature is too high or to jeopardize the user.In addition, after closing the first heating unit 120a, control module 130 also can be opened the water inlet (not shown) and be replenished working fluid, to improve the liquid level of the working fluid in first aqua storage tank 110.
Fig. 3 A illustrates the structural representation of a kind of storage-type electric water heater of another embodiment of the present invention.Please refer to Fig. 3 A, with respect to the storage-type electric water heater 100a shown in Fig. 1, storage-type electric water heater 100b shown in Fig. 3 A also can comprise the second heating unit 120b, two other temperature sensing unit 140c, 140d, second aqua storage tank 160 and solar energy heating unit 170.In addition, second aqua storage tank 160 has pumping 162, and solar energy heating unit 170 has pumping 172, and control module 130 is electrically connected at the second heating unit 120b, temperature sensing unit 140c, 140d and pumping 162,172.
The second heating unit 120b for example is electric heating tube or heat pump, and itself and the first heating unit 120a are disposed in first aqua storage tank 110 in the lump.Control module 130 can start the first heating unit 120a and the second heating unit 120b simultaneously, with heated working fluid, and can close the first heating unit 120a and the second heating unit 120b simultaneously, to stop heated working fluid.Therefore, with respect to the storage-type electric water heater 100a shown in Fig. 1, the storage-type electric water heater 100b shown in Fig. 3 A is heated working fluid more quickly.
In addition, second aqua storage tank 160 is disposed at outside first aqua storage tank 110, and is communicated to first aqua storage tank 110 by its pumping 162.And temperature sensing unit 140c is disposed in second aqua storage tank 160, and can be used to second temperature T 2 that sensing is contained in the working fluid in second aqua storage tank 160.And when second temperature T 2 was less than or equal to critical-temperature Ts2 ', control module 130 can start pumping 162, flowed to first aqua storage tank 110 to drive working fluid by second aqua storage tank 160.
Therefore, with respect to the storage-type electric water heater 100a shown in Fig. 1, the storage-type electric water heater 100b shown in Fig. 3 A can hold the more work fluid by second aqua storage tank 160.And second temperature T 2 that is contained in the working fluid in second aqua storage tank 160 can be held on the critical-temperature Ts2 ' haply.
In addition, solar energy heating unit 170 is disposed at outside first aqua storage tank 110, and is communicated to first aqua storage tank 110 by its pumping 172.And temperature sensing unit 140d is disposed in the solar energy heating unit 170, and can be used to the 3rd temperature T 3 that sensing is contained in the working fluid in the solar energy heating unit 170.And when the 3rd temperature T 3 was greater than or equal to preset temperature Ts1 ', control module 130 can start pumping 172, flowed to first aqua storage tank 110 to drive working fluid by solar energy heating unit 170.
Therefore, with respect to the storage-type electric water heater 100a shown in Fig. 1, storage-type electric water heater 100b shown in Fig. 3 A not only can pass through the first heating unit 120a and the second heating unit 120b heated working fluid, also can pass through solar energy heating unit 170 heated working fluids.In other words, under the situation of abundance at sunshine, storage-type electric water heater 100b is heated working fluid more quickly not only, also can save the energy by the solar energy heating working fluid.
In addition, identical with the embodiment shown in Fig. 1, storage-type electric water heater 100b also can include liquid level sensing cell 150, to avoid the first heating unit 120a to damage because of temperature is too high or to jeopardize the user.It should be noted that in this embodiment if the first heating unit 120a and the second heating unit 120b have been activated all with heated working fluid, then control module 130 can be closed the first heating unit 120a and the second heating unit 120b in the lump.
In addition, control module 130 also can have temperature setup unit 132 and timing unit 134.Temperature setup unit 132 can be used to set preset temperature Ts1 and critical-temperature Ts2, can set preset temperature Ts1 and critical-temperature Ts2 according to its user demand to make the user.In addition, 134 of timing units can be used to cooperate with temperature setup unit 132, can set different preset temperature Ts1 and critical-temperature Ts2 to make the user in the different periods.
In other words, when environment temperature Ta was higher by day, the user can set lower preset temperature Ts1 and critical-temperature Ts2, to save the energy.At this moment, the user more can close the second heating unit 120b, and starts solar energy heating unit 170 and replace the second heating unit 120b, with the further saving energy.In addition, when night, environment temperature Ta was low, the user also can set higher preset temperature Ts1 and critical-temperature Ts2, to improve first temperature T 1 of working fluid.In addition, the user also can start second aqua storage tank 160, so that storage-type electric water heater 100b can hold the more work fluid.
Fig. 3 B illustrates the structural representation of a kind of storage-type electric water heater of further embodiment of this invention.Please refer to Fig. 3 B, with respect to the storage-type electric water heater 100b shown in Fig. 3 A, the storage-type electric water heater 100c shown in Fig. 3 B does not comprise temperature sensing unit 140d, solar energy heating unit 170 and pumping 172.In other words, with respect to storage-type electric water heater 100b, storage-type electric water heater 100c still can hold the more work fluid by starting second aqua storage tank 160, but can't come heated working fluid by solar energy heating unit 170.
Fig. 4 illustrates the calcspar of the control model of the control module among a kind of Fig. 3 of defaulting in A of one embodiment of the invention.It should be noted that the storage-type electric water heater 100a shown in Fig. 1 only can come heated working fluid by the first heating unit 120a.Yet, please refer to Fig. 3 and Fig. 4, the storage-type electric water heater 100b shown in Fig. 3 can increase by the second heating unit 120b again, one of them comes heated working fluid to second aqua storage tank 160 at least with solar energy heating unit 170.Therefore, the predeterminable control model that more kinds of heated working fluids are arranged in the control module 130.
As shown in Figure 4, control module 130 among this embodiment can in be provided with battery saving mode M1, automatic mode M2, constant temperature mode M3, regularly constant temperature pattern M4, expand circulation pattern M5 and subsidize six kinds of control models such as pattern M6 with solar energy, and its original start predeterminable be automatic mode M2.The user can according to its user demand by control module 130 select above-mentioned six kinds of control models one of them.
It should be noted that, under battery saving mode M1, only but the first heating unit 120a is preset as starting state, and the second heating unit 120b, temperature setup unit 132, timing unit 134, second aqua storage tank 160 all is preset as with solar energy heating unit 170 can not starting state.Therefore, control module 130 only can be come heated working fluid by the first heating unit 120a.In other words, the heating means under the battery saving mode M1 do not repeat them here with heating means are approximate shown in figure 2.The heating means of other five kinds of patterns only are described respectively for a plurality of embodiment also therefore.
Fig. 5 A illustrates the flow chart of the heating means under the automatic mode among Fig. 4.Please refer to Fig. 3 A and Fig. 5 A, under automatic mode M2, but the second heating unit 120b is preset as starting state, and temperature setup unit 132 can be activated (S200), and timing unit 134, second aqua storage tank 160 then all is preset as with solar energy heating unit 170 can not starting state.Therefore, under automatic mode M2, the user can set preset temperature Ts1 and critical-temperature Ts2 (S202) by temperature setup unit 132 according to its user demand.
At temperature sensing unit 140a, after 140b senses first temperature T 1 and environment temperature Ta (S210) respectively, the preset temperature Ts1 that control module 130 can set the user automatically according to environment temperature Ta is adjusted to Ts1 ', and automatically critical-temperature Ts2 is adjusted to Ts2 ' (S220).Then, control module 130 can judge whether first temperature T 1 is less than or equal to critical-temperature Ts2 ' (S230).If control module 130 judges that first temperature T 1 is greater than or equal to critical-temperature Ts2 ', then do not start the first heating unit 120a and the second heating unit 120b (S240).Yet, if judging first temperature T 1, control module 130 is less than or equal to critical-temperature Ts2 ', start the first heating unit 120a and the second heating unit 120b, with heated working fluid (S250).
Afterwards, control module 130 can judge whether first temperature T 1 is greater than or equal to preset temperature Ts1 ' (S260) again.If judging first temperature T 1, control module 130 still is less than or equal to preset temperature Ts1 ', then continue, and continue to judge whether first temperature T 1 is greater than or equal to preset temperature Ts1 ' (S260) by the first heating unit 120a and the second heating unit 120b heated working fluid (S270).Yet,, close the first heating unit 120a and the second heating unit 120b, to stop heated working fluid (S280) if control module 130 judges that first temperature T 1 has been greater than or equal to preset temperature Ts1 '.Then, control module 130 can repeat step (S220～S280).Therefore, first temperature T 1 of working fluid can be maintained between preset temperature Ts1 ' and the critical-temperature Ts2 ' haply.
Based on above-mentioned, with respect to battery saving mode M1, under automatic mode M2, the user can set preset temperature Ts1 and critical-temperature Ts2 according to its user demand.And when first temperature T 1 was less than or equal to preset temperature Ts1 ', control module 130 can start the first heating unit 120a and the second heating unit 120b in the lump, with heated working fluid more quickly.
Fig. 5 B illustrates the flow chart of the heating means under the constant temperature mode among Fig. 4.Please refer to Fig. 3 A and Fig. 5 B, under constant temperature mode M3, the second heating unit 120b and second aqua storage tank 160 are preset as status available, and control module 130 is preset as and do not adjust preset temperature Ts1 and critical-temperature Ts2 automatically according to environment temperature Ta, and temperature setup unit 132 can be activated (S300).In addition, all be preset as with 170 of solar energy heating unit can not starting state for timing unit 134.Therefore, under constant temperature mode M3, the user also can set preset temperature Ts1 and critical-temperature Ts2 (S302) by temperature setup unit 132 according to its user demand.
In other words, with respect to automatic mode M2, under constant temperature mode M3, control module 130 can not adjusted preset temperature Ts1 and critical-temperature Ts2 automatically according to environment temperature Ta.Therefore, after temperature sensing unit 140a sensed first temperature T 1 (S310), control module 130 can be judged first temperature T 1 whether between preset temperature Ts1 and critical-temperature Ts2 that the user sets, whether to determine heated working fluid.
At this moment, if the second heating unit 120b is switched to can not starting state, then step (S320～S370) can with step (S120～S170) approximate shown in figure 2.Yet, but if the second heating unit 120b is switched to starting state, step (S320～S370) can with at (the S230～S280) approximate of the step shown in Fig. 5 A.Therefore, at this no longer to step (S320～S370) describe in detail.
Based on above-mentioned, with respect to automatic mode M2, under constant temperature mode M3, first temperature T 1 of working fluid can be maintained between the preset temperature Ts1 and critical-temperature Ts2 that the user sets haply.And, but the user can optionally switch to starting state with the second heating unit 120b according to its user demand, with heated working fluid more quickly.
It should be noted that under constant temperature mode M3 second aqua storage tank 160 is preset as status available.Therefore, the user also can select second aqua storage tank 160 for use according to its user demand, to expand circulation pattern M5.The heating means of expansion circulation pattern M5 please refer to the embodiment after being specified in.
Fig. 5 C is illustrated in the flow chart of the heating means under the timing constant temperature pattern among Fig. 4.Please refer to Fig. 3 A and Fig. 5 C, under timing constant temperature pattern M4, the second heating unit 120b, second aqua storage tank 160 are preset as status available with solar energy heating unit 170, control module 130 then is not preset as and adjusts preset temperature Ts1 and critical-temperature Ts2 automatically according to environment temperature Ta, and temperature setup unit 132 and timing unit 134 can be activated (S400).
In other words, with respect to constant temperature mode M3, under timing constant temperature pattern M4, the user can pass through design temperature setup unit 132 and timing unit 134, to set different preset temperature Ts1 and critical-temperature Ts2 (S402) according to its user demand in the different periods.Therefore, after temperature sensing unit 140a sensed first temperature T 1 (S410), control module 130 can judge between the preset temperature Ts1 and critical-temperature Ts2 whether first temperature T 1 set in the present period, whether to determine heated working fluid.
For instance, the user can be earlier by timing unit 134 24 hours in one day to be separated be period on daytime (environment temperature Ta is higher) and period at night (environment temperature Ta is lower).Then, the user can set lower preset temperature Ts1 and critical-temperature Ts2 in the period by temperature setup unit 132 more by day, and can set higher preset temperature Ts1 and critical-temperature Ts2 in the period at night.Thus, control module 130 promptly can read different preset temperature Ts1 and critical-temperature Ts2 automatically in the different periods.
At this moment, if the second heating unit 120b is switched to can not starting state, then step (S420～S470) can with step (S120～S170) approximate shown in figure 2.Yet, but if the second heating unit 120b is switched to starting state, step (S420～S470) can with at (the S230～S280) approximate of the step shown in Fig. 5 A.Therefore, at this no longer to step (S420～S470) describe in detail.
Based on above-mentioned, compared to constant temperature mode M3, under timing constant temperature pattern M4, first temperature T 1 of working fluid can be according to user's user demand and is maintained in the different periods between different the preset temperature Ts1 and critical-temperature Ts2.
It should be noted that under timing constant temperature pattern M4 second aqua storage tank 160 also is preset as status available with solar energy heating unit 170.Therefore, the user also can select second aqua storage tank 160 for use according to its user demand, expanding circulation pattern M5, or selects solar energy heating unit 170 for use, to carry out solar energy subsidy pattern M6.The heating means of expansion circulation pattern M5 and solar energy subsidy pattern M6 please refer to the embodiment after being specified in.
Fig. 5 D illustrates the flow chart of the heating means under the expansion circulation pattern among Fig. 4.Please refer to Fig. 3 A and Fig. 5 D, expanding circulation pattern M5 is a kind of subsidy heating mode, and it can carry out simultaneously with constant temperature mode M3 or timing constant temperature pattern M4.Expanding under the circulation pattern M5, but pumping 162 is in starting state, and whether control module 130 can start pumping 162 according to second temperature T, 2 decisions that are contained in the working fluid in second aqua storage tank 160, flows to first aqua storage tank 110 to drive working fluid by second aqua storage tank 160.
More specifically, after temperature sensing unit 140c sensed second temperature T 2 (S500), control module 130 can judge whether second temperature T 2 is less than or equal to critical-temperature Ts2 (S510).If control module 130 judges that second temperature T 2 is greater than or equal to critical-temperature Ts2, then do not start pumping 162 (S520).Yet, if judging second temperature T 2, control module 130 is less than or equal to critical-temperature Ts2, start pumping 162, flow to first aqua storage tank 110 (S530) to drive working fluid by second aqua storage tank 160.Then, temperature sensing unit 140c can continue sensing second temperature T 2 (S500), and control module 130 can repeat step (S510～S530).Therefore, second temperature T 2 of working fluid can be maintained on the critical-temperature Ts2 haply.
Based on above-mentioned, when constant temperature mode M3 or timing constant temperature pattern M4 cooperated expansion circulation pattern M5 to carry out simultaneously, storage-type electric water heater 100b can hold the more work fluid by second aqua storage tank 160.And second temperature T 2 that is contained in the working fluid in second aqua storage tank 160 can be maintained on the critical-temperature Ts2 haply.
Fig. 5 E is illustrated in the flow chart of the heating means under the solar energy subsidy pattern among Fig. 4.Please refer to Fig. 3 A and Fig. 5 E, solar energy subsidy pattern M6 also is a kind of subsidy heating mode, and it can carry out simultaneously with timing constant temperature pattern M4.Under solar energy subsidy pattern M6, but pumping 172 is in starting state, and whether control module 130 can start pumping 172 according to the 3rd temperature T 3 decisions that are contained in the working fluid in the solar energy heating unit 170, flows to first aqua storage tank 110 to drive working fluid by solar energy heating unit 170.
More specifically, after temperature sensing unit 140d sensed the 3rd temperature T 3 (S600), control module 130 can judge whether the 3rd temperature T 3 is greater than or equal to preset temperature Ts1 (S610).Be less than or equal to preset temperature Ts1 if control module 130 is judged the 3rd temperature T 3, then do not start pumping 172 (S620).Yet, if control module 130 judges that the 3rd temperature T 3 is greater than or equal to preset temperature Ts1, start pumping 172, flow to first aqua storage tank 110 (S630) to drive working fluid by solar energy heating unit 170.Then, temperature sensing unit 140d can continue sensing the 3rd temperature T 3 (S600), and control module 130 can repeat step (S610～S630).Therefore, storage-type electric water heater 100b not only can pass through the first heating unit 120a and the second heating unit 120b heated working fluid, also can pass through solar energy heating unit 170 heated working fluids.
Based on above-mentioned, when regularly constant temperature pattern M4 cooperates solar energy subsidy pattern M6 to carry out simultaneously, storage-type electric water heater 100b not only can pass through the first heating unit 120a and the second heating unit 120b heated working fluid, also can pass through solar energy heating unit 170 heated working fluids.In other words, under the situation of abundance at sunshine, storage-type electric water heater 100b is heated working fluid more quickly not only, also can save the energy by the solar energy heating working fluid.
Comprehensively above-mentioned, storage-type electric water heater of the present invention and heating means thereof can have following at least several advantages:
1. when environment temperature was low, control module can be heightened preset temperature and critical-temperature automatically according to environment temperature, so storage-type electric water heater uses comparatively facility.
2. when environment temperature was higher, control module can be turned down preset temperature and critical-temperature automatically, and with the time of minimizing heating unit heated working fluid, so storage-type electric water heater can comparatively be saved the energy.
3. when liquid level was less than or equal to critical altitude, control module can be closed heating unit, and is too high and damage or jeopardize the user to avoid heating unit Yin Wendu.
4. control module can start a plurality of heating unit heated working fluids simultaneously, to improve the rate of heat addition.
5. storage-type electric water heater can hold the more work fluid by second aqua storage tank.
6. under the situation of abundance at sunshine, storage-type electric water heater can pass through solar energy heating unit heated working fluid, so storage-type electric water heater heated working fluid more quickly not only, also can save the energy by the solar energy heating working fluid.
Control module at least can in be provided with battery saving mode, automatic mode, constant temperature mode, regularly the constant temperature pattern, expand six kinds of control models such as circulation pattern and solar energy subsidy pattern.
8. behind the start-up temperature setup unit, the user can set preset temperature and critical-temperature according to its user demand.
9. behind start-up temperature setup unit and the timing unit, the user can set different preset temperature and critical-temperature according to its user demand in the different periods.
Though the present invention with embodiment openly as above, yet it is not to be used for limiting the present invention.Any those skilled in the art without departing from the spirit and scope of the present invention, can make a little change and modification.Therefore, protection scope of the present invention should be looked accompanying Claim and is as the criterion.
Claims (24)
1. a storage-type electric water heater is used for heating a working fluid, and described storage-type electric water heater comprises:
One first aqua storage tank, it is used for holding described working fluid;
One first heating unit, it is disposed in described first aqua storage tank; And
One control module, it is disposed at outside described first aqua storage tank, and is electrically connected at described first heating unit,
Wherein said control module is suitable for adjusting the critical-temperature that a preset temperature and that is stored in the described control module is lower than described preset temperature automatically according to the outer environment temperature of described first aqua storage tank, when one first temperature of the described working fluid in being contained in described first aqua storage tank is less than or equal to described critical-temperature, described control module starts described first heating unit, to heat described working fluid, and when described first temperature was greater than or equal to described preset temperature, described control module was closed described first heating unit.
2. storage-type electric water heater as claimed in claim 1, wherein said first heating unit is electric heating tube or heat pump.
3. storage-type electric water heater as claimed in claim 1, also comprise one second heating unit, wherein said second heating unit is disposed in described first aqua storage tank, and be electrically connected at described control module, and described control module is suitable for starting simultaneously described first heating unit and described second heating unit, heating described working fluid, and be suitable for closing simultaneously described first heating unit and described second heating unit.
4. storage-type electric water heater as claimed in claim 3, wherein said second heating unit is electric heating tube or heat pump.
5. storage-type electric water heater as claimed in claim 1 also comprises a temperature sensing unit, and wherein said temperature sensing unit is disposed in described first aqua storage tank, and is electrically connected at described control module, is used for described first temperature of sensing.
6. storage-type electric water heater as claimed in claim 1 also comprises a temperature sensing unit, and wherein said temperature sensing unit is disposed at outside described first aqua storage tank, and is electrically connected at described control module, is used for the described environment temperature of sensing.
7. storage-type electric water heater as claimed in claim 1, wherein said control module have a temperature setup unit, are used for setting described preset temperature and described critical-temperature.
8. storage-type electric water heater as claimed in claim 7, wherein said control module also has a timing unit, and described timing unit is suitable for cooperating with described temperature setup unit, to set different preset temperature and critical-temperature in the different periods.
9. storage-type electric water heater as claimed in claim 1, also comprise one second aqua storage tank, and described second aqua storage tank has a pumping that is electrically connected at described control module, wherein said second aqua storage tank is disposed at outside described first aqua storage tank, and be communicated to described first aqua storage tank by described pumping, when one second temperature of the described working fluid in being contained in described second aqua storage tank is less than or equal to described critical-temperature, described control module starts described pumping, flows to described first aqua storage tank to drive described working fluid by described second aqua storage tank.
10. storage-type electric water heater as claimed in claim 9 also comprises a temperature sensing unit, and wherein said temperature sensing unit is disposed in described second aqua storage tank, and is electrically connected at described control module, is used for described second temperature of sensing.
11. storage-type electric water heater as claimed in claim 1, also comprise a solar energy heating unit, and described solar energy heating unit has a pumping that is electrically connected at described control module, wherein said solar energy heating unit is disposed at outside described first aqua storage tank, and be communicated to described first aqua storage tank by described pumping, when one the 3rd temperature of the described working fluid in being contained in described solar energy heating unit is greater than or equal to described preset temperature, described control module starts described pumping, with drive described working fluid by described solar energy heating unit stream to described first aqua storage tank.
12. storage-type electric water heater as claimed in claim 11 also comprises a temperature sensing unit, wherein said temperature sensing unit is disposed in the described solar energy heating unit, and is electrically connected at described control module, is used for described the 3rd temperature of sensing.
13. storage-type electric water heater as claimed in claim 1, also comprise a liquid level sensing cell, wherein said liquid level sensing cell is disposed in described first aqua storage tank, and be electrically connected at described control module, being used for sensing is contained in a liquid level of the described working fluid in described first aqua storage tank, when described liquid level was less than or equal to a critical altitude, described control module was closed described first heating unit.
14. the heating means of a storage-type electric water heater comprise:
Sensing is contained in one first temperature and the outer environment temperature of described first aqua storage tank of the working fluid in one first aqua storage tank;
According to described environment temperature, adjust the critical-temperature that a preset temperature and that is stored in the control module is lower than described preset temperature automatically; And
Judge whether described first temperature is less than or equal to described critical-temperature, if described first temperature is less than or equal to described critical-temperature, then described control module starts one first heating unit, to heat described working fluid.
15. the heating means of storage-type electric water heater as claimed in claim 14 wherein after described control module starts described first heating unit, also comprise the following steps:
Judge whether described first temperature is greater than or equal to described preset temperature, if described first temperature is greater than or equal to described preset temperature, then described control module is closed described first heating unit.
16. the heating means of storage-type electric water heater as claimed in claim 14, wherein if described first temperature is greater than or equal to described critical-temperature, then described control module does not start described first heating unit.
17. the heating means of storage-type electric water heater as claimed in claim 14, the formula of wherein adjusting described preset temperature and described critical-temperature automatically is:
Ts’＝Ts+(25-Ta)，
Wherein, Ts is described preset temperature or described critical-temperature before adjusting,
Ts ' is adjusted described preset temperature or described critical-temperature, and
Ta is described environment temperature.
18. the heating means of storage-type electric water heater as claimed in claim 14 wherein before adjusting described preset temperature and described critical-temperature automatically, also comprise the following steps:
Start a temperature setup unit of described control module, so that described temperature setup unit is suitable for setting described preset temperature and described critical-temperature; And
But switch one second heating unit to a starting state, so that described second heating unit is suitable for heating described working fluid.
19. the heating means of storage-type electric water heater as claimed in claim 14 wherein before judging whether described first temperature is less than or equal to described critical-temperature, also comprise the following steps:
Stop to adjust automatically described preset temperature and described critical-temperature;
Start a temperature setup unit of described control module, so that described temperature setup unit is suitable for setting described preset temperature and described critical-temperature; And
Switch one second heating unit to a status available, so that described second heating unit is suitable for heating described working fluid.
20. the heating means of storage-type electric water heater as claimed in claim 19 wherein switching described second heating unit to the described status available, also comprise the following steps:
Judge whether one second temperature that is contained in the described working fluid in one second aqua storage tank is less than or equal to described critical-temperature, if described second temperature is less than or equal to described critical-temperature, then described control module starts a pumping of described second aqua storage tank, flows to described first aqua storage tank to drive described working fluid by described second aqua storage tank.
21. the heating means of storage-type electric water heater as claimed in claim 14 wherein before judging whether described first temperature is less than or equal to described critical-temperature, also comprise the following steps:
Stop to adjust automatically described preset temperature and described critical-temperature;
Start a temperature setup unit and a timing unit of described control module, wherein said timing unit is suitable for cooperating with described temperature setup unit, to set different preset temperature and critical-temperature in the different periods; And
Switch one second heating unit to a status available, so that described second heating unit is suitable for heating described working fluid.
22. the heating means of storage-type electric water heater as claimed in claim 21 wherein switching described second heating unit to the described status available, also comprise the following steps:
Judge whether one second temperature that is contained in the described working fluid in one second aqua storage tank is less than or equal to described critical-temperature, if described second temperature is less than or equal to described critical-temperature, then described control module starts a pumping of described second aqua storage tank, flows to described first aqua storage tank to drive described working fluid by described second aqua storage tank.
23. the heating means of storage-type electric water heater as claimed in claim 21 wherein switching described second heating unit to the described status available, also comprise the following steps:
Judge whether one the 3rd temperature that is contained in the described working fluid in the solar energy heating unit is greater than or equal to described preset temperature, if described the 3rd temperature is greater than or equal to described preset temperature, then described control module starts a pumping of described solar energy heating unit, with drive described working fluid by described solar energy heating unit stream to described first aqua storage tank.
24. the heating means of storage-type electric water heater as claimed in claim 14 wherein after described control module starts described first heating unit, also comprise the following steps:
Sensing is contained in a liquid level of the described working fluid in described first aqua storage tank, and when being less than or equal to a critical altitude as if described liquid level, described control module is closed described first heating unit.
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| CN 200910006562 CN101813370B (en) | 2009-02-19 | 2009-02-19 | Water storing type electric water heater and heating method thereof |
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| CN 200910006562 CN101813370B (en) | 2009-02-19 | 2009-02-19 | Water storing type electric water heater and heating method thereof |
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| CN103196228A (en) * | 2013-04-15 | 2013-07-10 | 朱建新 | Solid heat accumulation device with critical water conduction function |
| CN103411308A (en) * | 2013-07-26 | 2013-11-27 | 广东美的暖通设备有限公司 | Heat insulation control method and device for heat pump water heater and heat pump water heater |
| CN104808718A (en) * | 2015-03-10 | 2015-07-29 | 广东美的暖通设备有限公司 | Heat pump water heater temperature control method and temperature control device |
| CN107101382A (en) * | 2017-05-09 | 2017-08-29 | 珠海格力电器股份有限公司 | Water heater temperature control method, water heater and readable storage medium storing program for executing |
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| CN2703228Y (en) * | 2004-05-17 | 2005-06-01 | 扬州市华扬新能源有限公司 | Air source hot pump water heater |
| CN100402942C (en) * | 2004-12-29 | 2008-07-16 | 上海交通大学 | Intelligent type heat pump water heater |
| CN100587357C (en) * | 2007-07-27 | 2010-02-03 | 东莞市康源节能科技有限公司 | Start-stop control method dedicated for heat pump water heater cooperating with solar energy |
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| CN103196228A (en) * | 2013-04-15 | 2013-07-10 | 朱建新 | Solid heat accumulation device with critical water conduction function |
| CN103196228B (en) * | 2013-04-15 | 2018-02-16 | 朱建新 | Solid heat accumulation device with critical water conduction function |
| CN103411308A (en) * | 2013-07-26 | 2013-11-27 | 广东美的暖通设备有限公司 | Heat insulation control method and device for heat pump water heater and heat pump water heater |
| CN103411308B (en) * | 2013-07-26 | 2016-03-02 | 广东美的暖通设备有限公司 | The thermal-insulation control method of Teat pump boiler and device and Teat pump boiler |
| CN104808718A (en) * | 2015-03-10 | 2015-07-29 | 广东美的暖通设备有限公司 | Heat pump water heater temperature control method and temperature control device |
| CN107101382A (en) * | 2017-05-09 | 2017-08-29 | 珠海格力电器股份有限公司 | Water heater temperature control method, water heater and readable storage medium storing program for executing |
| CN107101382B (en) * | 2017-05-09 | 2019-07-26 | 珠海格力电器股份有限公司 | Water heater temperature control method, water heater and readable storage medium storing program for executing |
| CN108388288A (en) * | 2018-02-09 | 2018-08-10 | 杭州杰富睿科技有限公司 | One kind being based on big data analysis period intelligent heating system and heating means |
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