CN201047654Y - Small installation power instant-heating electric water heater - Google Patents
Small installation power instant-heating electric water heater Download PDFInfo
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- CN201047654Y CN201047654Y CNU2007200842772U CN200720084277U CN201047654Y CN 201047654 Y CN201047654 Y CN 201047654Y CN U2007200842772 U CNU2007200842772 U CN U2007200842772U CN 200720084277 U CN200720084277 U CN 200720084277U CN 201047654 Y CN201047654 Y CN 201047654Y
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Abstract
The utility model relates to an instantaneous electric water heater with small installation power, belonging to the technical field of the electric water heater. The utility model mainly solves the problems that the existing instantaneous electric water heater has larger installation power and is not suitable for being installed in ordinary residence and the existing quick-heating electric water heater need to wait after start all the year around though having the small installation power. The utility model is mainly characterized in that the utility model is provided with a water storage tank, a cold water temperature controller, an electromagnetic valve, a water level sensing controller and an automatic conversion circuit with an instantaneous-heating mode; a water inlet pipe of the water storage tank is provided with an electromagnetic valve B, while a water outlet pipe thereof is provided with a check valve; the water storage tank is connected with a heating refill; the cold water temperature controller is arranged on the internal water inlet pipe; the water storage tank is provided with a water level controller. Under the condition of the small installation power, the utility model has instantaneous-heating hot water supply function most of time all the year around, and the utility model only works in a quick-heating mode in a minority period during the winter; according to the change of temperature, the utility model senses temperature and converses automatically with two modes and is mainly used for the instantaneous electric water heater.
Description
Technical field
The utility model belongs to the electric heater technical field.Be specifically related to the instant electric water heater of a kind of electric heater, particularly a kind of little installation power.
Background technology
In recent years, the instant electric water heater is owing to have safety, energy-conservation, save time, convenient, save cost of use, advantages such as it is little to take up room, and receive more and more consumers' concern, but this water heater is owing to adopt the plug and play mode to work, for normally using winter in China, the installation power of water heater needs bigger, and the most of ordinary residence of China, even if newly-built dwelling house, the ammeter capacity is generally 40A, consider the electricity consumption of other household electrical appliance, the existing dwelling house power of registering one's residence obviously can not satisfy the so powerful installation requirement of instant electric water heater, this has just limited promoting the use of of this water heater greatly, also makes this water heater lose the water heater market of this piece maximum of ordinary residence.In recent years, some production firms have released a kind of quick-heating electric water heater for addressing this problem, with Instant heating type different, this water heater is before heat supply water, and needing starts shooting earlier adds some hot water of thermmal storage, behind the wait certain hour, water heater just begins heat supply water, though can reduce some installation power like this, when the user uses, all need " wait " certain hour to use by heat supply water throughout the year, very inconvenient, also waste electric energy, in fact, in the most of area of China, only had when minority month in winter, inflow temperature was low, can not need to adopt fast heat pattern work by being heat pattern work, be the use of some periods of satisfying the minority month in winter like this, water heater can not be to be hot mode work, no matter after user's temperature just, all needs " wait " certain hour throughout the year, could use, obviously both inconvenient, also not energy-conservation.China's utility model patent " a kind of pre-Instant heating type synchronous mixed electric heater " (application number: 200520005528.4) be improvement to above-mentioned deficiency, adopt heat pattern work when temperature is high, when temperature hangs down, by preheating inner bag elder generation stored hot water, again with preheating inner bag hot water and instant heating inner bag hot water mixing heat supply water, the deficiency that this technical scheme exists is that the conversion of two kinds of mode of operations is the manual conversions carried out felt with the user, this was both inconvenient, and it is inaccurate, especially substitute in season, when the temperature fluctuation is big, the user be inaccurate knows this moment this select which kind of pattern work, find to select for use in to be used pattern not to the time, change just pretty troublesome again, it is that the preheating inner bag also needs to install the heating element heater with constant power that there is another deficiency in this scheme, and this increases manufacturing cost.
Summary of the invention
The purpose of this utility model is bigger at instant electric water heater's installation power, being not suitable for the most of ordinary residence of China installs, though the quick-heating electric water heater installation power is less, but when the user uses, all need wait for certain hour throughout the year, have and use deficiency inconvenient and the waste electric energy, the utility model provides a kind of suitable present China ordinary residence electrical power to install, has the instant heating work functions the most of the time in 1 year, only the minority period is adopted fast heat pattern work in the winter time, and two kinds of automatic temperature-sensitives of mode of operation, the instant electric water heater of a kind of little installation power of automatic conversion.
Realize that technical solution of the present utility model is: a kind of little installation power instant electric water heater; it includes shell, contain the heating water bladder of electric heating body, heater circuit, holding circuit, mix water valve, threeway A, outer water inlet pipe, outer outlet pipe, it is characterized in that:
(1) at least also comprise a storage tank, this storage tank top is connected with heating water bladder's water side through storage tank water inlet pipe, threeway C; This storage tank bottom is connected with the heating water bladder through the storage tank outlet pipe;
(2) on the storage tank water inlet pipe, be provided with magnetic valve B, on the storage tank outlet pipe, be provided with check valve;
(3) heating water bladder's water inlet end and outside be provided with interior water inlet pipe between the water inlet pipe, water inlet pipe is provided with the cold water temperature controller in this;
(4) on storage tank, be provided with water level controller, and thereon, the lower end is respectively equipped with upper and lower level sensor;
(5) be provided with the instant heating speed heat pattern automatic switching circuit that includes magnetic valve B, water level controller and cold water temperature controller.
Storage tank outlet pipe described in the technical solution of the present utility model is connected to the storage tank outlet pipe with the heating water bladder and is connected with heating water bladder's water inlet end through check valve, threeway B; Heating water bladder's water side also is connected with mixed water valve by threeway C; On interior water inlet pipe, be provided with magnetic valve A.
Also comprise a mixing chamber in the technical solution of the present utility model; Described storage tank outlet pipe is connected with this mixing chamber by threeway C, tube connector with the water side that the heating water bladder is connected to the heating water bladder; The storage tank outlet pipe is connected with this mixing chamber through unidirectional; The mixing chamber water side is connected with mixed water valve water inlet end.
Storage tank outlet pipe described in the technical solution of the present utility model is connected to the storage tank outlet pipe with the heating water bladder and is connected with heating water bladder's water inlet end through check valve, threeway B; Heating water bladder's water side also is connected with mixed water valve by threeway C.
Water level controller described in the technical solution of the present utility model, by housing, upper and lower level sensor, float and permanent-magnet steel are formed; Housing is the column hollow container, two Room that are divided into upper and lower connection, the upper and lower side of its upper/lower terminal and storage tank is communicated with, and is fixed with upper and lower level sensor on the inwall of its upper and lower two Room, at the two indoor floats that respectively are provided with, be fixed with permanent-magnet steel on this float.
Water level controller described in the technical solution of the present utility model for the upper and lower position at storage tank respectively is provided with a conducting probe, is made upper and lower level sensor, is provided with conducting strip on the corresponding storage tank inwall of probe, and the difference extraction electrode.
Instant heating speed heat pattern automatic switching circuit described in the technical solution of the present utility model, by two magnetic valve A, B, water level controller, cold water temperature controller and relay constitute contact instant heating speed heat pattern automatic switching circuit, one magnetic valve A is for often opening operating valve, another magnetic valve B is normally closed operating valve, often open cold water temperature controller contact when being higher than temperature set-point, and its circuit connecting mode is: cold water temperature controller normally opened contact and first relay K
1Normally-closed contact, magnetic valve B actuating coil is connected in series; Following level sensor normally opened contact and second relay K
2Actuating coil is connected in series; Last level sensor normally opened contact and first relay K
1Actuating coil, second relay K
2Normally opened contact is connected in series; First relay K
1Normally opened contact and second relay K
2Normally opened contact, another magnetic valve A actuating coil is connected in series, and the two ends of above-mentioned four series arms are connected to both ends of power; At the two ends of last level sensor normally opened contact, also be connected in parallel to first relay K
1Another to normally opened contact.
The contactless instant heating speed heat pattern automatic switching circuit that instant heating speed heat pattern automatic switching circuit described in the technical solution of the present utility model is made of two magnetic valve A, B, water level controller, cold water temperature controller and Digital Logical Circuits, device for power switching; Its connected mode is one of Digital Logical Circuits and an input of door and the output SW of following level sensor
2Connect, should be connected with another input of door and the input of a not gate, and the output SW of while and last level sensor
1And the output of latching circuit connects, the input of latching circuit be connected to this with the door output, the output of not gate is connected with another input with door, should be connected with another input of door and the output WK of cold water temperature controller, the output of two AND circuits, input with two device for power switching is connected respectively, and its output is connected with two magnetic valve actuating coils respectively.
Instant heating described in the technical solution of the present utility model speed heat pattern automatic switching circuit has a contact instant heating speed heat pattern automatic switching circuit by what magnetic valve B, water level controller, cold water temperature controller and relay constituted; Its magnetic valve B is normally closed operating valve, and often opened the contact when cold water temperature controller was set for being higher than temperature, and its circuit connecting mode is: cold water temperature controller normally opened contact and relay K
1Normally-closed contact, magnetic valve B actuating coil are connected in series, last level sensor normally opened contact and relay K
1Actuating coil, second relay K
2Normally opened contact is connected in series, following level sensor normally opened contact and second relay K
2Actuating coil is connected in series; Above-mentioned three series arm two ends are connected to both ends of power, and the two ends of last level sensor normally opened contact are parallel with relay K
1Another to normally opened contact.
Instant heating described in the technical solution of the present utility model speed heat pattern automatic switching circuit is by magnetic valve B, water level controller, cold water temperature controller, and the contactless instant heating speed heat pattern automatic switching circuit that constitutes of Digital Logical Circuits, device for power switching; Its connected mode is: Digital Logical Circuits and an input of door and the output SW of following level sensor
2Connect, should be connected with the other end of door and the input of a not gate, and the output SW of while and last level sensor
1And the output of latching circuit connects, the input of latching circuit be connected to this with the door output, the output of not gate is connected with another input with door, should be connected with another input of door and the output WK of cold water temperature controller, be connected with the output of door and the input of device for power switching, its output is connected with magnetic valve B actuating coil.
Cold water temperature controller described in the utility model technical solution can be the temperature controller of two temperature dual outputs, it is when down temperature set-point is used for inflow temperature and is lower than set point, the action of temperature controller output control magnetic valve, temperature set-point on its another, design temperature is higher, be used for when carrying out inflow temperature when higher, the temperature controller output signal, disconnect the part heating element heater in the electric heating body, reduce heating power, this cold water temperature controller also can replace with a kind of interval temperature control temperature controller or two single temperature controllers.
After the utility model adopted technique scheme, when inflow temperature was higher than under the cold water temperature controller design temperature point, the cold water temperature controller was failure to actuate, and instant electric water heater heating water bladder's hot water flows out for use after water valve mixes water through mixing, at this moment for being heat pattern work.When inflow temperature is lower than design temperature point, because the immediately heating water heater installation power is less, be that heat pattern work can not be satisfied the water temperature requirement this moment, the action of cold water temperature controller, make the magnetic valve B that is located on the storage tank water inlet pipe open (this valve is normally closed operating valve), the water of instant electric water heater's heating enters storage tank through this water inlet pipe, when the level sensor water level is gone up in its water level arrival, its signal is closed magnetic valve B, hot water no longer enters storage tank, to be located at the magnetic valve A action on the cold water inlet simultaneously, close this magnetic valve A (this magnetic valve is a normally open valve), when the user opens when mixing water valve and using hot water, the heating water bladder that the hot water of storage tank enters the instant electric water heater once more is heated, flow out for using after water valve mixes through mixing, be fast heat pattern work this moment.Because cold water flows out after post bake for using, also can satisfy instructions for use so the water heater installation power is less, and when summer, inflow temperature was higher than on the cold water temperature controller desired temperature, it is heat pattern work that water heater is still, but because cold water temperature controller output signal, the breaking part heating element heater makes water heater reduce heating power.Owing to be provided with and include cold water temperature controller water level controller check valve, the instant heating speed heat pattern automatic switching circuit of magnetic valve, improved the inaccurate and inconvenient of manual switch by feel, fluctuateed up and down when big, seemed particularly necessary at cold and hot season alternation temperature.The utility model storage tank outlet pipe and instant electric water heater heating water bladder are connected, except that technique scheme, can also the water outlet storage tank outlet pipe is direct and the instant electric water heater heating water bladder connect together, hot water temperature controller temperature on the storage tank water inlet pipe is set higherly at this moment, entering the hot water of higher temperature of storage tank and instant electric water heater comes out to flow out to after the hot water of lower temperature mixes and mixes water valve and cold water mix flows out for use, mix in order to make, can establish a mixing chamber, the utility model storage tank outlet pipe and instant electric water heater heating water bladder are connected, except that technique scheme, can also with the storage tank outlet pipe directly and instant electric water heater's interior water inlet pipe of advancing cold water directly be communicated with, the magnetic valve A cancellation that this scheme only needs to be located in the scheme of front on the cold water inlet can realize, after the cold water mix that higher temperature hot water that this moment, storage tank stored and outside enter, after heating again, the instant electric water heater flows out for using to mixing water valve.Instant heating speed heat pattern automatic switching circuit described in the technical solutions of the utility model, can be by the contact-carrying temperature controller, the tongue tube level sensor, relay, the magnetic valve actuating coil constitutes the contact automatic switching circuit, also can be by integrated temperature sensor, temperature control circuit, Digital Logical Circuits, the integrated power switching device, the contactless automatic switching circuit that the magnetic valve actuating coil constitutes, both logical relations are identical with operation principle, the last level sensor of temperature controller contact and antilogical constitutes and logic, magnetic valve B on the control storage tank water inlet pipe, last level sensor and following level sensor constitute and logic, magnetic valve A on the control cold water inlet, last level sensor is provided with latching circuit, when water storage tank water level descends, keep logical relation constant.
The utility model is owing to be provided with storage tank, make the instant electric water heater under the less situation of installation power, also can guarantee to use when temperature is low, solved this water heater and can not enter the problem that the most of ordinary residence of China is installed greatly because of installation power, owing to be provided with and include the cold water temperature controller, water level controller, the instant heating speed heat pattern automatic switching circuit of magnetic valve, make this water heater realize being hot mode work 1 year most of the time, only the minority period in the winter time is fast hot mode work, and the conversion of two kinds of mode of operations is carried out automatically, avoided with somatosensory carry out that manual switch causes inaccurate, inconvenience is so use more energy-conservation, more convenient.The utility model is mainly used in the instant electric water heater.
Description of drawings:
Fig. 1 is first kind of embodiment water heater of the utility model cutaway view;
Fig. 2 is the circuit theory diagrams of first kind of embodiment water heater of the utility model instant heating speed heat pattern automatic switching circuit;
Fig. 3 is second kind of embodiment water heater of the utility model water level controller partial sectional view;
Fig. 4 is the circuit theory diagrams of second kind of embodiment water heater cold water of the utility model temperature controller circuit;
Fig. 5 is the circuit block diagram of second kind of embodiment water heater of the utility model instant heating speed heat pattern automatic switching circuit;
Fig. 6 is the circuit theory diagrams of second kind of embodiment water heater of the utility model instant heating speed heat pattern automatic switching circuit;
Fig. 7 is the third embodiment water heater cutaway view of the utility model;
Fig. 8 is the circuit theory diagrams of the third embodiment water heater instant heating speed heat pattern automatic switching circuit of the utility model;
Fig. 9 is the circuit block diagram of the 4th kind of embodiment water heater instant heating speed of the utility model heat pattern automatic switching circuit;
Figure 10 is the circuit theory diagrams of the 4th kind of embodiment water heater instant heating speed of the utility model heat pattern automatic switching circuit.
The specific embodiment
Embodiment 1:
Fig. 1 is first kind of embodiment water heater of the utility model cutaway view.Instant electric water heater 1 is made of shell 2, heating water bladder 13, electric heating body 12, heater circuit 3, holding circuit 4, threeway A10, hot water temperature controller 6, mixed water valve 9, outer water inlet pipe 8, outer outlet pipe 7 in the present embodiment.Be provided with a storage tank 24 above it, be provided with a water inlet 29 on storage tank 24 tops, this water inlet 29 is connected by the end of storage tank water inlet pipe 30 and threeway C33, the two ends in addition of this threeway C33 are connected with a water side 32 of heating water bladder 13 and a water inlet end of mixed water valve 9 respectively by two tube connectors.These storage tank 24 bottoms are provided with delivery port 20, this delivery port 20 is connected with the end of threeway B17 by storage tank outlet pipe 19, the two ends in addition of this threeway B17, by interior water inlet pipe 15 and another tube connector, be connected with the end of the 3rd threeway A10 and heating water bladder 13 water inlet end 16 respectively.The 3rd threeway A10 be two ends in addition, are connected with another water inlet end and the outer water inlet pipe 8 of mixed water valve 9 respectively by two tube connectors, and the water side of mixed water valve 9 is connected with outer outlet pipe 7.Enter at cold water on heating water bladder 13 the interior water inlet pipe 15 and be provided with a magnetic valve A14, it is the normally open magnetic valve, on storage tank water inlet pipe 30, be provided with a magnetic valve B31, it is the normally off magnetic valve, be provided with check valve 18 on storage tank outlet pipe 19, the direction of check valve 18 is to allow the water of storage tank 24 to flow out, and is provided with cold water temperature controller 11 on interior water inlet pipe 15, this cold water temperature controller 11 is interval temperature control contacts, and it has upper and lower two temperature set-points.Be provided with water level controller 25 in storage tank 24 1 sides, its housing 23 is the column hollow container, the upper and lower side of its upper and lower side and storage tank 24 is communicated with, respectively be fixed with the tongue tube of a normally opened contact thereon, on the inwall of lower end, make upper and lower level sensor 28,21, on fixing level sensor 21 upper body 23 inwalls down, be provided with boss 22, make housing 23 form upper and lower two Room that communicate, the two indoor floats 26 that respectively are provided with, be fixed with permanent-magnet steel 27 on the float 26, housing 23 usefulness non-magnet materials are made.Heating water bladder 13 belows are provided with heat insulating mattress 34.
Fig. 2 is first kind of embodiment instant heating speed of the utility model heat pattern automatic switching circuit, 5 circuit theory diagrams.It is by two magnetic valve A14, B31, water level controller 25, and cold water temperature controller 11 and relay 39,40 constitute.Its method of attachment is cold water temperature controller normally opened contact 11a and first relay K
1Normally-closed contact 39a, magnetic valve B actuating coil 31a is connected in series; Following level sensor normally opened contact 21a and second relay K
2Actuating coil 40 is connected in series; Last level sensor normally opened contact 28a and first relay K
139, the second relay K of actuating coil
2Normally opened contact 40a is connected in series; First relay K
1Normally opened contact 39c and second relay K
2Normally opened contact 40b, another magnetic valve A actuating coil 14a is connected in series; The two ends of above-mentioned four series arms are connected to both ends of power, and the two ends at last level sensor normally opened contact 28a are connected in parallel to first relay K
1Another to normally opened contact 39b.
Temperature spot can be made as a certain temperature spot in 28 ℃～32 ℃ temperature ranges on the cold water temperature controller 11, following temperature spot can be set at a certain temperature spot in 20 ℃～15 ℃ temperature ranges, when the cold water temperature that enters water heater when the outside running water is higher than the following temperature spot of setting, cold water temperature controller 11 is failure to actuate, magnetic valve A14, magnetic valve B31 are failure to actuate, and cold water directly enters heating water bladder 13, after heating, flow out from outer outlet pipe 7 by mixing water valve 9, this moment, water heater was the work of instant heating state.When the cold water temperature that enters water heater is lower than the following temperature spot that cold water temperature controller 11 sets, 11 actions of cold water temperature controller, its normally opened contact 11a closure, magnetic valve B actuating coil 31a has electronic work, opens magnetic valve B31, heating water bladder 13 hot water, through this magnetic valve B31, storage tank water inlet pipe 30 enters storage tank 24, when its water level is higher than to descend level sensor 21 water levels, its normally opened contact 21a closure makes relay K
240 actions, its normally opened contact 40a, 40b closure, when storage tank 24 water levels reached level sensor 28 water levels, its normally opened contact 28a closure made relay K
139 have electronic work, its normally opened contact 39a disconnects, and this magnetic valve B31 is closed in magnetic valve B actuating coil 31a outage, hot water no longer enters storage tank 24, its normally opened contact 39b closure makes the 28a self-locking of level sensor contact, its normally opened contact 39c closure, magnetic valve A actuating coil 14a energising, this magnetic valve A14 action is closed cold water and is entered heating water bladder 13, and be water heater quick-heating water storage duty this moment.When the user opens when mixing water valve 9 waters, storage tank 24 hot water are by storage tank outlet pipe 19, and check valve 18 enters heating water bladder 13, after post bake, flows out for using by mixing water valve 9, and be the fast hot working of water heater this moment.When storage tank 24 water levels were lower than level sensor 21 water levels, its normally opened contact 21a disconnected, relay K
2Actuating coil 40 outages, its normally opened contact 40b disconnects, magnetic valve A actuating coil 14a outage, magnetic valve A opens, and recovers cold water and enters water heater, and its normally opened contact 40a disconnects, and makes relay K
1Self-locking is removed in actuating coil 39 outages, and original state recovers in system.When summer, inflow temperature was higher than on the cold water temperature controller 11 temperature spot, another group normally-closed contact action of cold water temperature controller disconnected the part heating element heater of the superincumbent electric heating body 12 of series connection, reduces heating power.
Fig. 3 is the partial sectional view of second kind of embodiment water level controller 37 of the utility model, it is to be provided with two conducting probes to make upper and lower level sensor 35,38 at the position up and down of storage tank 24, storage tank 24 adopts electrically non-conductive material to make, on corresponding storage tank 24 inwalls of probe, be provided with conducting strip 36, and applying positive potential thereon, the electrode that upper and lower level sensor is drawn is called SW
1, SW
2
Fig. 4 is second kind of embodiment cold water of the utility model temperature controller, 50 circuit theory diagrams.Be used as the IC of temperature sensor 48 among the figure
1Adopt LM35, it is a high accuracy integrated temperature sensor, as the operational amplifier IC of voltage comparator 49
2Adopt LM741, temperature sensor 48 to be located to enter in the cold water before the water heater heating water bladder 13, its output is through resistance R
1Be connected to an input of voltage comparator 49, R
3, R
4Constitute another input that cold water temperature controller 50 temperature setting circuits are connected to voltage comparator 49, the cold water temperature signal of telecommunication of temperature sensor 48 impressions and the temperature signal of setting are relatively exported the back through voltage comparator 49, are called WK.
Fig. 5 is second kind of embodiment water heater of the utility model instant heating speed heat pattern automatic switching circuit, 41 circuit block diagrams.This circuit 41 is by two magnetic valve A14, B31, water level controller 37, cold water temperature controller 50, Digital Logical Circuits 42,45,46,47 and device for power switching 43,44 constitute contactless instant heating speed heat pattern automatic switching circuit 41, Digital Logical Circuits adopts AND circuit 42,45 in the drawings, not circuit 47, latching circuit 46 also are made of AND circuit, and its method of attachment is and an input of door 45 and the output SW of following level sensor 35
2Connect, should be connected with another input of door 45 and the input of not gate 47, and the output SW of while and last level sensor 38
1And the output of latching circuit 46 connects, the input of latching circuit 46 is connected to this and door 45 output, the output of not gate 47 is connected with another input with door 42, should be connected with another input of door 42 and the output WK of cold water temperature controller 50, two and door 45,42 output respectively with two device for power switching 44,43 input connects, two device for power switching 44,43 output respectively with two magnetic valve actuating coil 14a, 31a connects, the same with first kind of embodiment operation principle, when the cold water temperature that enters water heater is higher than design temperature, cold water temperature controller 50 output WK are low level, be output as low level with door 42, magnetic valve B actuating coil 31a is failure to actuate, and water heater is the work of instant heating state.When the cold water temperature that enters water heater was lower than design temperature, cold water temperature controller 50 output WK were high level, and making the input with door 42 is high level, because last level sensor 38 output SW
1Be low level this moment, after not gate 47 is anti-phase, make with door another input of 42 and be high level, thereby make and door 42 output high level, driving power switching device 43 is connected magnetic valve B actuating coil 31a electricity, magnetic valve B31 action, open storage tank water inlet pipe 30, hot water enters storage tank 24, when water level reaches level sensor 38 water levels, and two level sensors, 38,21 output SW
1, SW
2Be high level, with door 45 output high level, making device for power switching 44 connect magnetic valve A actuating coil 14a has electricity, this magnetic valve A14 action, water inlet pipe 15 in closing, this SW
1High level signal is inverted into low level signal through not gate 47, makes and door 42 output low levels, thereby makes device for power switching 42 turn-off magnetic valve B actuating coil 31a, and hot water no longer enters storage tank 24, and water heater is finished quick-heating water storage.When the outside heat supply water of water heater, water level begins to descend, and latching circuit 46 assurance systems still keep above-mentioned state.When storage tank 24 water levels drop to when being lower than down level sensor 35 water levels, it exports SW
2Be low level, be output as low level with door 45, device for power switching 44 turn-offs magnetic valve A actuating coil 14a, this magnetic valve A outage recovers former normally open, and latching circuit 46 is removed self-locking, magnetic valve B still is in operating state, for system works ready next time.
Fig. 6 is the circuit theory diagrams of the instant heating speed heat pattern automatic switching circuit 41 of second kind of embodiment water heater of the utility model.It is the concrete figure of Fig. 5 circuit block diagram, make Digital Logic circuit 45 with a CT74LS00 42 input nand gate devices 51 and a CT74LS04 hex inverter 52 in the drawings, 42,46,47, with two DRV102PWM low speed power switch rate of doing work switching devices 44,43, its concrete method of attachment be a NAND gate 51a in the 42 input nand gate devices 51 and a not gate 52a in the hex inverter 52 do in Fig. 5 circuit block diagram with door 45, its output is connected to input 1 pin of device for power switching 44, another NAND gate 51b in the 42 input nand gate devices 51 and another not gate 52c in the hex inverter 52 make another and door 42 in Fig. 5 circuit block diagram, its output is connected to input 1 pin of device for power switching 43, the 3rd not gate 52b in the hex inverter 52 makes the not gate 47 in Fig. 5 circuit block diagram, two NAND gate 51c in addition in 42 input nand gates 51, another not gate 52d in 51d and the hex inverter 52 constitutes latching circuit 46,14 pin of CT74LS00 42 input nand gate devices 51 and CT74LS04 hex inverter 52 connect the power supply lower end, its 7 pin ground connection, DRV102PWM device for power switching 44,43 5 pin are output, respectively through VD
1And VD
2Be connected with the two ends of two magnetic valve actuating coil 14a, 31a, its 6 pin is the power end of magnetic valve actuating coil 14a, 31a, connect the working power anode, 7 pin are the power positive end of this device, connect corresponding power supply, 4 pin ground connection, all the other methods of attachment of circuit are with the method for attachment of Fig. 5 circuit block diagram, and its working method is also with the circuit working mode of above-mentioned Fig. 5.
Fig. 7 is the third embodiment water heater cutaway view of the utility model.Present embodiment is except that following difference, and all the other are with first kind of embodiment.Present embodiment has additional a mixing chamber 54; Threeway C33 one end is not to be connected with a water inlet end of mixed water valve 9, but is connected by a water inlet end of tube connector 53 and mixing chamber 54; One end of storage tank outlet pipe 19 is not an end that is connected to threeway B17, but is connected with another water inlet end of mixing chamber 54; The water side of mixing chamber 54 is connected by a water inlet end of tube connector and mixed water valve 9; Interior water inlet pipe 15 no longer is connected with threeway B17, does not also establish magnetic valve A14 on it, but directly is connected with heating water bladder 13 water inlet end 16.
Fig. 8 is the circuit theory diagrams of the third embodiment instant heating speed heat pattern automatic switching circuit of the utility model, owing to be not provided with magnetic valve A14 on the water inlet pipe 15 in the third embodiment water heater, so present embodiment and instant heating speed heat pattern automatic switching circuit shown in Figure 2 remove not by relay K
1Normally opened contact 39c, relay K
2Outside the series arm that normally opened contact 40b and magnetic valve A actuating coil 14a constitute, all the other are with the circuit theory diagrams of first kind of embodiment instant heating speed heat pattern automatic switching circuit shown in Figure 2, and its constitutes and the utility model the third embodiment water heater water passage shown in Figure 7 is corresponding that instant heating fast heat pattern automatic switching circuit 55 in contact arranged.Its operation principle and the method for operation are except that following point is different from first kind of embodiment, and all the other are all identical.Its difference is in this embodiment, enters after the higher temperature hot water of storage tank outlet pipe 19 and heating water bladder 13 lower temperature hot water mix in mixing chamber 54 to flow out for use after mixing water valve and cold water mix; The temperature that hot water temperature controller 6 on the storage tank water inlet pipe 30 is set is higher, so that two hot water have higher temperature after mixing.All the other are identical with first kind of embodiment shown in Figure 2.
Fig. 9 is the circuit block diagram of the 4th kind of embodiment instant heating speed of the utility model heat pattern automatic switching circuit, Figure 10 is the circuit theory diagrams of the 4th kind of embodiment instant heating speed of the utility model heat pattern automatic switching circuit, and it is and the corresponding contactless instant heating speed heat pattern automatic switching circuit 56 of the utility model the third embodiment water heater water passage shown in Figure 7.Only be not have in this embodiment the branch road of power switch device 44 and magnetic valve A actuating coil 14a formation with Fig. 5, not existing together of water heater instant heating speed heat pattern automatic switching circuit shown in Figure 6, its operation principle and the method for operation except that the higher temperature hot water of storage tank outlet pipe 19 and heating water bladder's 13 lower temperature hot water mixes in mixing chamber 54 enter mix water valve 9 mix flow out after the cold water mix heat supply water different with second kind of embodiment, all the other are identical with Fig. 5, second kind of embodiment shown in Figure 6.
The 5th kind of embodiment of the utility model is not establish magnetic valve A14 in first kind of embodiment on cold water enters the interior water inlet pipe 15 of water heater, all the other are with first kind of embodiment, this moment storage tank outlet pipe 19 and being connected of instant electric water heater are directly to be communicated with by threeway B17 and interior water inlet pipe 15, open when mixing water valve 9 and using hot water as the user like this, after entering heating water bladder's 13 heating after the hot water of storage tank 24 higher temperatures and the cold water mix that enters by interior water inlet pipe 15, flow out for using after mixing water valve 9 and cold water mix, its instant heating speed heat pattern automatic switching circuit is shown in Figure 8 contact instant heating speed heat pattern automatic switching circuit 55 being arranged or enclose 9, contactless instant heating speed heat pattern automatic switching circuit 56 shown in Figure 10.Its operation principle is also identical with the method for operation.
Adopt in the third embodiment of the utility model and set up mixing chamber 54, the hot water of two kinds of different temperatures is entered before the mixed water valve 9, mixing ratio is more even.Be simplified structure, also can adopt threeway to replace mixing chamber 54, two water inlet ends of threeway this moment respectively with tube connector 53, and storage tank outlet pipe 19 connects, a water inlet end of the water side of threeway and mixed water valve 9 is connected.Can also adopt another kind of scheme, promptly mixing water valve 9 has three water inlet ends, and except that a water inlet end advances the cold water, two water inlet ends are connected with storage tank outlet pipe 19 with tube connector 53 respectively in addition, and two kinds of temperature hot water and cold water mix the outside heat supply water in back in mixing water valve.The scheme of certainly all right other multiple accommodation, equally in the 5th kind of embodiment of the utility model, being connected of storage tank outlet pipe 19 and instant electric water heater 1 can be by threeway B17, also can adopt the scheme of mixing chamber or other multiple accommodation, all belong to scope described in the utility model.
Claims (10)
1. little installation power instant electric water heater; it includes shell (2), contain the heating water bladder (13) of electric heating body (12), heater circuit (3), holding circuit (4), mix water valve (9), threeway A (10), outer water inlet pipe (8), outer outlet pipe (7), it is characterized in that:
(1) at least also comprise a storage tank (24), this storage tank (24) top is connected with the water side (32) of heating water bladder (13) through storage tank water inlet pipe (30), threeway C (33); This storage tank (24) bottom is connected with heating water bladder (13) through storage tank outlet pipe (19);
(2) on storage tank water inlet pipe (30), be provided with magnetic valve B (31), on storage tank outlet pipe (19), be provided with check valve (18);
(3) heating water bladder (13) water inlet end (16) and outside be provided with interior water inlet pipe (15) between the water inlet pipe (8), water inlet pipe (15) is provided with cold water temperature controller (11,50) in this;
(4) on storage tank (24), be provided with water level controller (25,37), and thereon, the lower end is respectively equipped with upper and lower level sensor (28,38,21,35);
(5) be provided with the instant heating speed heat pattern automatic switching circuit (5,41,55,56) that includes magnetic valve B (31), water level controller (25,37) and cold water temperature controller (11,50).
2. a kind of little installation power instant electric water heater according to claim 1 is characterized in that described storage tank outlet pipe (19) and heating water bladder (13) are connected to storage tank outlet pipe (19) and are connected with heating water bladder (13) water inlet end (16) through check valve (18), threeway B (17); Heating water bladder's (13) water side (32) also is connected with mixed water valve (9) by threeway C (33); On interior water inlet pipe (15), be provided with magnetic valve A (14).
3. a kind of little installation power instant electric water heater according to claim 1 is characterized in that: also comprise a mixing chamber (54); Described storage tank outlet pipe (19) is connected with this mixing chamber (54) by threeway C (33), tube connector (53) with the water side (32) that heating water bladder (13) is connected to heating water bladder (13); Storage tank outlet pipe (19) is connected with this mixing chamber (54) through check valve (18); Mixing chamber (54) water side is connected with mixed water valve (9) water inlet end.
4. a kind of little installation power instant electric water heater according to claim 1 is characterized in that described storage tank outlet pipe (19) and heating water bladder (13) are connected to storage tank outlet pipe (19) and are connected with heating water bladder (13) water inlet end (16) through check valve (18), threeway B (17); Heating water bladder's (13) water side (32) also is connected with mixed water valve (9) by threeway C (33).
5. a kind of little installation power instant electric water heater according to claim 1 is characterized in that: described water level controller (25), and by housing (23), upper and lower level sensor (28,21), float (26) and permanent-magnet steel (27) are formed; Housing (23) is the column hollow container, two Room that are divided into upper and lower connection, the upper and lower side of its upper/lower terminal and storage tank (24) is communicated with, be fixed with upper and lower level sensor (28,21) on the inwall of its upper and lower two Room, at the two indoor floats (26) that respectively are provided with, be fixed with permanent-magnet steel (27) on this float (26).
6. a kind of little installation power instant electric water heater according to claim 1, it is characterized in that described water level controller (37), for the upper and lower position at storage tank (24) respectively is provided with a conducting probe, make upper and lower level sensor (38,35), on the corresponding storage tank of probe (24) inwall, be provided with conducting strip (36), and the difference extraction electrode.
7. a kind of little installation power instant electric water heater according to claim 1 and 2, it is characterized in that described instant heating speed heat pattern automatic switching circuit (5), by two magnetic valve A, B (14,31), water level controller (25), cold water temperature controller (11) and relay (39, what 40) constitute has a contact instant heating speed heat pattern automatic switching circuit (5), one magnetic valve A (14) is for often opening operating valve, another magnetic valve B (31) is normally closed operating valve, often open cold water temperature controller (11) contact when being higher than temperature set-point, and its circuit connecting mode is: cold water temperature controller normally opened contact (11a) and first relay K
1Normally-closed contact (39a), magnetic valve B actuating coil (31a) is connected in series; Following level sensor normally opened contact (21a) and second relay K
2Actuating coil (40) is connected in series; Last level sensor normally opened contact (28a) and first relay K
1Actuating coil (39), second relay K
2Normally opened contact (40a) is connected in series; First relay K
1Normally opened contact (39c) and second relay K
2Normally opened contact (40b), another magnetic valve A actuating coil (14a) is connected in series, and the two ends of above-mentioned four series arms are connected to both ends of power; Two ends at last level sensor normally opened contact (28a) also are connected in parallel to first relay K
1Another to normally opened contact (39b).
8. a kind of little installation power instant electric water heater according to claim 1 and 2 is characterized in that the contactless instant heating speed heat pattern automatic switching circuit (41) that described instant heating speed heat pattern automatic switching circuit (41) is made of two magnetic valve A, B (14,31), water level controller (37), cold water temperature controller (50) and Digital Logical Circuits (42,45,46,47), device for power switching (43,44); Its connected mode is one of a Digital Logical Circuits and the input of door (45) and the output SW of following level sensor (35)
2Connect, should be connected with another input of door (45) and the input of a not gate (47), and the output SW of while and last level sensor (38)
1And the output of latching circuit (46) connects, the input of latching circuit (46) is connected to this and the output of door (45), the output of not gate (47) is connected with another input with door (42), should be connected with another input of door (42) and the output WK of cold water temperature controller (50), the output of two AND circuits (45,42), input with two device for power switching (44,43) is connected respectively, and its output is connected with two magnetic valve actuating coils (14a, 31a) respectively.
9. according to claim 1 or 3 described a kind of little installation power instant electric water heaters, it is characterized in that described instant heating speed heat pattern automatic switching circuit (55) has a fast heat pattern automatic switching circuit of contact instant heating by what magnetic valve B (31), water level controller (25), cold water temperature controller (11) and relay (39,40) constituted; Its magnetic valve B (31) is normally closed operating valve, and often opened the contact when cold water temperature controller (11) was set for being higher than temperature, and its circuit connecting mode is: cold water temperature controller normally opened contact (11a) and relay K
1Normally-closed contact (39a), magnetic valve B actuating coil (31a) are connected in series, last level sensor normally opened contact (28a) and relay K
1Actuating coil (39), second relay K
2Normally opened contact (40a) is connected in series, following level sensor normally opened contact (21a) and second relay K
2Actuating coil (40) is connected in series; Above-mentioned three series arm two ends are connected to both ends of power, and the two ends of last level sensor normally opened contact (28a) are parallel with relay K
1Another to normally opened contact (39b).
10. according to claim 1 or 3 described a kind of little installation power instant electric water heaters, it is characterized in that described instant heating speed heat pattern automatic switching circuit (56) is by magnetic valve B (31), water level controller (37), cold water temperature controller (50), and the contactless instant heating speed heat pattern automatic switching circuit (56) that constitutes of Digital Logical Circuits (42,45,46,47), device for power switching (43); Its connected mode is: Digital Logical Circuits and the input of door (45) and the output SW of following level sensor (35)
2Connect, should be connected with the other end of door (45) and the input of a not gate (47), and the output SW of while and last level sensor (38)
1And the output of latching circuit (46) connects, the input of latching circuit (46) is connected to this and the output of door (45), the output of not gate (47) is connected with another input with door (42), should be connected with another input of door (42) and the output WK of cold water temperature controller (50), be connected with the output of door (42) and the input of device for power switching (43), its output is connected with magnetic valve B actuating coil (31a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200842772U CN201047654Y (en) | 2007-04-18 | 2007-04-18 | Small installation power instant-heating electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200842772U CN201047654Y (en) | 2007-04-18 | 2007-04-18 | Small installation power instant-heating electric water heater |
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| Publication Number | Publication Date |
|---|---|
| CN201047654Y true CN201047654Y (en) | 2008-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200842772U Expired - Fee Related CN201047654Y (en) | 2007-04-18 | 2007-04-18 | Small installation power instant-heating electric water heater |
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| CN (1) | CN201047654Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608825B (en) * | 2009-07-20 | 2011-01-05 | 乐清市传福电器有限公司 | Beforehand instant double-mode electric water heater |
| CN102418993A (en) * | 2011-12-13 | 2012-04-18 | 莆田市清华园电器发展有限公司 | Water heater |
| CN102607182A (en) * | 2012-03-30 | 2012-07-25 | 常熟市海晟电器有限公司 | Network water heater |
| CN102679534A (en) * | 2012-05-28 | 2012-09-19 | 张秀英 | Energy-saving constant temperature electric water heater |
| CN105042875A (en) * | 2015-07-31 | 2015-11-11 | 苏州南光电子科技有限公司 | Traditional water heater control system |
| CN108426288A (en) * | 2018-02-06 | 2018-08-21 | 慈溪玉龙电器有限公司 | heater with water heater function and its adjusting method |
| WO2021031596A1 (en) * | 2019-08-16 | 2021-02-25 | 中山市乐喜电子科技有限公司 | Water heater system |
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2007
- 2007-04-18 CN CNU2007200842772U patent/CN201047654Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608825B (en) * | 2009-07-20 | 2011-01-05 | 乐清市传福电器有限公司 | Beforehand instant double-mode electric water heater |
| CN102418993A (en) * | 2011-12-13 | 2012-04-18 | 莆田市清华园电器发展有限公司 | Water heater |
| CN102607182A (en) * | 2012-03-30 | 2012-07-25 | 常熟市海晟电器有限公司 | Network water heater |
| CN102679534A (en) * | 2012-05-28 | 2012-09-19 | 张秀英 | Energy-saving constant temperature electric water heater |
| CN105042875A (en) * | 2015-07-31 | 2015-11-11 | 苏州南光电子科技有限公司 | Traditional water heater control system |
| CN108426288A (en) * | 2018-02-06 | 2018-08-21 | 慈溪玉龙电器有限公司 | heater with water heater function and its adjusting method |
| WO2021031596A1 (en) * | 2019-08-16 | 2021-02-25 | 中山市乐喜电子科技有限公司 | Water heater system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20120418 |