CN203893430U - Electric water heater and heating power control device - Google Patents
Electric water heater and heating power control device Download PDFInfo
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- CN203893430U CN203893430U CN201420291346.7U CN201420291346U CN203893430U CN 203893430 U CN203893430 U CN 203893430U CN 201420291346 U CN201420291346 U CN 201420291346U CN 203893430 U CN203893430 U CN 203893430U
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Abstract
The utility model provides an electric water heater and a heating power control device. The electric water heater comprises N electric heating pipes, a temperature detector, the heating power control device and a temperature controller. The heating power control device comprises a power selection key, a controller and N power selection circuits, wherein the power selection key is used for receiving user instructions to generate power signals; the controller generates power distribution signals according to the power signals; the N power selection circuits are in one-to-one correspondence with the N electric heating pipes; each power selection circuit comprises a half-wave rectification module and a power selection module; a first power branch circuit is formed by the half-wave rectification modules; the power selection modules are connected with the corresponding electric heating pipes to form a second power branch circuit; the power selection modules control the first power selection branch circuit and the second power selection branch circuit to be switched on or switched off; the temperature controller controls connection and disconnection of the N power selection circuits. The electric water heater can provide multiple heating power combinations, and is high in adaptability, more convenient to use and low in cost, and the structure of the electric heating pipes does not need to be changed. The utility model further discloses the heating power control device of the electric water heater.
Description
Technical field
The utility model relates to technical field of electric appliances, the heating power control device of particularly a kind of electric heater, and a kind of electric heater.
Background technology
Existing many power electric water heaters can provide more mode of heatings more flexibly for user, thereby this type of water heater is very popular with users.The water heater of single group electrothermal tube can only be exported a kind of power, if make electric heater there is many power, generally all realize by changing electrothermal tube structure, for example electric heater of two group electrothermal tube structures can provide PA (wherein one group of electrothermal tube heating), PB (wherein another group electrothermal tube heating), three kinds of power combination of PA+PB (two groups of electrothermal tubes heat simultaneously).But, by changing the method for electrothermal tube structure increase power combination kind, can cause electrothermal tube cost to increase, also increase the installation complexity of electrothermal tube, and then affected the production efficiency of electric heater complete machine simultaneously.
Utility model content
The purpose of this utility model is intended to solve at least to a certain extent above-mentioned technical problem.
For this reason, an object of the present utility model is to propose a kind of electric heater, and this electric heater can provide the combination of multiple heating power, and function and adaptability that can improving product be more user-friendly.Without the structure that changes electrothermal tube, cost is low, can not increase the complexity that electrothermal tube is installed, thereby can not affect the production efficiency of electric heater complete machine.In addition can improve security, increase the service life.
Another object of the present utility model is to propose a kind of heating power control device of electric heater.
For achieving the above object, one side of the present utility model proposes a kind of electric heater, and this electric heater comprises N electrothermal tube, Temperature Detector, heating power control device and temperature controller, wherein, one end of the each electrothermal tube in a described N electrothermal tube is all connected with one end of external power source; Described Temperature Detector is for detection of the temperature of water in described inner container of electric water heater, and described Temperature Detector is connected with described temperature controller; Described heating power control device comprises power selection button, a controller and N power selection circuitry, and wherein, described power selection button is used for receiving user instruction with generating power signal; Described controller is connected respectively with a described N power selection circuitry with described power selection button, and described controller is according to described power signal generating power distributing signal, and described power division signal is sent to a described N power selection circuitry; A described N power selection circuitry is corresponding one by one with a described N electrothermal tube, each power selection circuitry comprises half-wave rectification block and power selection module, wherein, the first output of described power selection module is connected with one end of described half-wave rectification block, one end of described half-wave rectification block connects with the other end of corresponding electrothermal tube, to form the first power branch road; The second output of described power selection module connects with the other end of corresponding electrothermal tube, to form the second power branch road; Described power selection module according to the break-make of the first power branch road described in described power division signal controlling and described the second power branch road to select the heating power of electrothermal tube of described correspondence; Described temperature controller is connected with the other end of input, described Temperature Detector and the described external power source of each power selection module of a described N power selection circuitry respectively, described temperature controller according to the break-make of N electrothermal tube described in the temperature control of water in described inner container of electric water heater so that a described N electrothermal tube heat with the described heating power of correspondence respectively.
According to electric heater of the present utility model, by with N electrothermal tube N power selection circuitry one to one, can be respectively according to the connection of power division signal controlling the first power branch road or the second power branch road, and then corresponding electrothermal tube is realized to half-power or flat-out distribution, thereby can provide more kinds of power combination kinds, function and adaptability that can improving product, more user-friendly, without the structure that changes electrothermal tube, can not increase the installation strength of electrothermal tube, can not increase cost, not affect the production efficiency of electric heater complete machine.In addition, the each electrothermal tube in N electrothermal tube all can be realized half-power heating by half-wave rectification block, and in the situation that there is power limitations, the adaptability of electric heater is stronger.In addition, when electrothermal tube is worked with half-power, half when its surface loading is also reduced to full power operation, now the surface temperature of electrothermal tube reduces, thereby can reduce and delay to produce high temperature incrustation scale, and then avoid electrothermal tube appearance to assemble and occur heating the phenomenon of booster because of incrustation scale, the security that has improved electric heater, can extend service life of electric heater.
Wherein, described power selection module comprises: relay unit, described relay unit according to the break-make of the first power branch road described in described power division signal controlling and described the second power branch road to select the heating power of electrothermal tube of described correspondence.
In addition, above-mentioned electric heater also comprises power supply access device, the first input end of described power supply access device is connected with one end of described external power source, the second input of described power supply access device is connected with the other end of described external power source, the first output of described power supply access device is connected respectively with one end of each electrothermal tube of a described N electrothermal tube, and the second output of described power supply access device is connected with described temperature controller.
For achieving the above object, the heating power control device that proposes on the other hand a kind of electric heater of the present utility model.Described electric heater comprises N electrothermal tube, and described heating power control device comprises power selection button, a controller and N power selection circuitry, and wherein, described power selection button is used for receiving user instruction with generating power signal; Described controller is connected respectively with a described N power selection circuitry with described power selection button, and described controller is according to described power signal generating power distributing signal, and described power division signal is sent to a described N power selection circuitry; A described N power selection circuitry is corresponding one by one with a described N electrothermal tube, each power selection circuitry comprises half-wave rectification block and power selection module, wherein, the first output of described power selection module is connected with one end of described half-wave rectification block, one end of described half-wave rectification block connects with the other end of corresponding electrothermal tube, to form the first power branch road; The second output of described power selection module connects with the other end of corresponding electrothermal tube, to form the second power branch road; Described power selection module according to the break-make of the first power branch road described in described power division signal controlling and described the second power branch road to select the heating power of electrothermal tube of described correspondence.
According to the heating power control device of electric heater of the present utility model, by with N electrothermal tube N power selection circuitry one to one, can be respectively according to the connection of power division signal controlling the first power branch road or the second power branch road, and then corresponding electrothermal tube is realized to half-power or flat-out distribution, thereby can provide more kinds of power combination kinds, function and adaptability that can improving product, more user-friendly.In addition, the each electrothermal tube in N electrothermal tube all can be realized half-power heating by half-wave rectification block, and in the situation that there is power limitations, the adaptability of electric heater is stronger.In addition, when electrothermal tube is worked with half-power, half when its surface loading is also reduced to full power operation, now the surface temperature of electrothermal tube reduces, thereby can reduce and delay to produce high temperature incrustation scale, and then avoid electrothermal tube appearance to assemble and occur heating the phenomenon of booster because of incrustation scale, the security that has improved electric heater, can extend service life of electric heater.
Wherein, in embodiment more of the present utility model, described power selection module comprises: relay unit, described relay unit according to the connection of the first power branch road described in described power division signal controlling and described the second power branch road to select the heating power of electrothermal tube of described correspondence.
The aspect that the utility model is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Brief description of the drawings
The utility model above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments obviously and easily and understand, wherein:
Fig. 1 is according to the schematic diagram of the electric heater of an embodiment of the present utility model;
Fig. 2 is according to the block diagram of the electric heater of another embodiment of the present utility model;
Fig. 3 is according to the block diagram of the electric heater of another embodiment of the present utility model;
Fig. 4 is according to the flow chart of the control method of the electric heater of an embodiment of the present utility model;
Fig. 5 is according to the block diagram of the heating power control device of the electric heater of an embodiment of the present utility model;
Fig. 6 is according to the block diagram of the heating power control device of the electric heater of another embodiment of the present utility model; And
Fig. 7 is according to the flow chart of the heating power control method of the electric heater of another embodiment of the present utility model.
Reference numeral
Electric heater 100, N electrothermal tube 10, Temperature Detector 20, heating power control device 30 and temperature controller 40, inner bag 50, power selection button 301, controller 302 and N power selection circuitry 303, relay unit 30321, half-wave rectification block 3031 and power selection module 3032.
Detailed description of the invention
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Disclosing below provides many different embodiment or example to be used for realizing different structure of the present utility model.Of the present utility model open in order to simplify, hereinafter the parts to specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the utility model.In addition, the utility model can be in different examples repeat reference numerals and/or letter.This repetition is in order to simplify and object clearly, itself do not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the utility model provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, First Characteristic described below Second Characteristic it " on " structure can comprise that the first and second Characteristics creations are the direct embodiment of contact, also can comprise the embodiment of other Characteristics creation between the first and second features, such the first and second features may not be direct contacts.
In description of the present utility model, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
With reference to description and accompanying drawing below, by these and other aspects of clear embodiment of the present utility model.In these descriptions and accompanying drawing, specifically disclose some specific implementations in embodiment of the present utility model, represent some modes of the principle of implementing embodiment of the present utility model, but should be appreciated that the scope of embodiment of the present utility model is not limited.On the contrary, embodiment of the present utility model comprises all changes, amendment and the equivalent within the scope of spirit and the intension that falls into additional claims.
The electric heater and the control method thereof that propose according to one side embodiment of the present utility model are described with reference to the accompanying drawings, and heating power control device and the control method of electric heater.
First electric heater the utility model embodiment being proposed describes.Fig. 1 is the basic structure schematic diagram according to the electric heater of an embodiment of the present utility model, and Fig. 2 is according to the block diagram of the electric heater of another embodiment of the present utility model.As depicted in figs. 1 and 2, the electric heater 100 of the utility model embodiment comprises N electrothermal tube 10, Temperature Detector 20, heating power control device 30 and temperature controller 40.
Wherein, N electrothermal tube 10 can be 1 or multiple, can be configured as required, for example, Figure 1 shows that two electrothermal tubes, and one end of the each electrothermal tube in N electrothermal tube 10 is all connected with one end of external power source, for example, be connected with the zero line N of alternating current.
Temperature Detector 20 is for detection of the temperature of the inner bag 50 interior water of electric heater 100, and Temperature Detector 20 is connected with temperature controller 40.Temperature Detector 20 can be a temperature sensor, example as shown in fig. 1, temperature sensor gos deep in inner bag 50 by the blind pipe of electrothermal tube, or Temperature Detector 20 can be also multiple temperature sensors, and multiple temperature sensors are positioned at the different position of inner bag 50.
Heating power control device 30 comprises power selection button 301, controller 302 and N power selection circuitry 303.Wherein, power selection button 301, for receiving user instruction with generating power signal, that is to say, user selects the operating power of electric heater 100 by power selection button 301.Controller 302 is connected respectively with N power selection circuitry 303 with power selection button 301, controller 302 is according to power signal generating power distributing signal, and power division signal is sent to N power selection circuitry 301, say that controller 302 is according to the power signal of electric heater 100 needs of work of user's selection, send power division signal and with which electrothermal tube of controlling in N electrothermal tube 10 open, and the power of the electrothermal tube of opening.
N power selection circuitry 303 is corresponding one by one with N electrothermal tube 10, and each power selection circuitry comprises half-wave rectification block 3031 and power selection module 3032.Wherein, the first output 1 of power selection module 3032 is connected with one end of half-wave rectification block 3031, and the other end of half-wave rectification block 3031 connects with the other end of corresponding electrothermal tube, to form the first power branch road.The second output 2 of power selection module 3032 directly connects with the other end of corresponding electrothermal tube, to form the second power branch road.Power selection module 3032 according to the break-make of power division signal controlling the first power branch road and the second power branch road to select the heating power of corresponding electrothermal tube.
Further, power selection module 3032 comprises relay unit 30321, relay unit 30321 according to the break-make of power division signal controlling the first power branch road and the second power branch road to select the heating power of corresponding electrothermal tube.
Particularly, can select the first power branch road to connect or the connection of the second power branch road by power selection module 3032.For example power selection module 3032 can arrange relay unit 30321, according to the break-make of the power division signal control relay unit 30321 of the controller 302 receiving, and then the break-make of control the first power branch road or the second power branch road, wherein, relay unit 30321 can be one or two.If power selection module 3032 is controlled the first power branch road and is connected, input current for example civil power through after power selection module 3032, and then by half-wave rectification block 3031, because civil power is sinusoidal ac, reduce to flat-out half through the power of electrothermal tube corresponding with this power selection circuitry after halfwave rectifier, that is to say, the first power branch road is connected the distribution that can realize the half-power to corresponding electrothermal tube.In addition, if power selection module 3032 selects the second power branch road to connect according to power division signal, the electrothermal tube that for example mains supply of input power can be directly corresponding with this power selection circuitry is communicated with, and can realize this electrothermal tube full power allocation.
Put it briefly, power selection button 301 receives user's power selection, the power signal that controller 302 is selected according to user, judge how N the electrothermal tube in electrothermal tube 10 need to carry out power division, in other words, for example controller 302 judges which electrothermal tube in N electrothermal tube 10 needs to open, and the heating power that judges each electrothermal tube is for example with half-power heating or heating with full power, generating power distributing signal, and power division signal is sent to N power selection circuitry 303, and then N power selection circuitry 303 is according to the power division signal receiving, power ratio control selects the branch road of circuit to connect respectively, for example, wherein a road power selection circuitry 303 receives half-power heating signal, controlling the electrothermal tube corresponding with this power selection circuitry heats with half-power, its the first power branch road of this power selection circuitry control is connected.Be understandable that, at N heating tube while being multiple, each electrothermal tube has corresponding with it power selection circuitry, can carry out total power and half-power distributes, realize the selection of the heating power of each electrothermal tube, thereby N electrothermal tube 10 can be combined into different power kinds, forms many power electric water heaters more than many power.
Further, temperature controller 40 is connected with for example live wire L end of the other end of input 3, Temperature Detector 20 and for example mains supply of external power source of each power selection module of N power selection circuitry 303 respectively, temperature controller 40 is according to the break-make of N the electrothermal tube 10 of temperature control of the inner bag 50 interior water of electric heater 100, so that N electrothermal tube 10 heats with corresponding heating power respectively, according to energising and the power-off of water temperature control electrothermal tube, namely heat or stop heating.For example, if the temperature of the inner bag 50 interior water of electric heater 100 is less than design temperature, temperature controller 40 is connected external power source, and then the electrothermal tube that is assigned to heating power in N electrothermal tube 10 heats with the heating power distributing, until the temperature of inner bag 50 interior water reaches preset temperature, temperature controller 40 cuts off external power source, and electric heater 100 quits work.
In the consideration of safety, above-mentioned electric heater 100 can also comprise power supply access device 60, the first input end I1 of power supply access device 60 is connected with for example live wire end L of one end of for example mains supply of external power source, the second input I2 of power supply access device 60 is connected with for example zero line side N of the other end of external power source, the first output O1 of power supply access device 60 is connected respectively with one end of each electrothermal tube of N electrothermal tube 10, and the second output O2 of power supply access device 60 is connected with temperature controller 40.
The electric heater 100 proposing with specific embodiment explanation the utility model embodiment is below realized the process of power division.Fig. 3 is according to the block diagram of the electric heater of a specific embodiment of the present utility model.As shown in Figure 3, in this embodiment, electric heater 100 comprises an electrothermal tube, similarly has the power selection circuitry corresponding with electrothermal tube, selects the first power branch road and the second power branch road to realize distribute half-power and total power by power selection circuitry.Wherein, in the time that connection the second power branch road is full power allocation, for example mains supply of external power source is directly connected with electrothermal tube by power supply access device 60, temperature controller 40, power selection module 3032.Be that half-power is divided timing connecting the first power branch road, external power source is connected with electrothermal tube with half-wave rectification block 3031 through power supply access device 60, temperature controller 40, power selection module 3032, thereby realizes half-power heating.Can find out, can provide total power P and two kinds of heating powers of half-power 1/2P for the electric heater 100 of single electrothermal tube.
In addition, if N electrothermal tube 10 is multiple, can realize more kinds of power combination kinds according to above-mentioned power division and selection.For example, in the time that electric heater 100 is two electrothermal tubes, by the control of power selection module 3032 corresponding to each electrothermal tube and half-wave rectification block 3031, electric heater can be realized eight kinds of heating power combinations, for example comprise: single tube heating with full power is PA (the independent heating with full power of one of them electrothermal tube) and PB (the independent heating with full power of another electrothermal tube), single tube half-power heating 1/2PA and 1/2PB, the equal heating with full power of two pipes is PA+PB, the equal half-power heating of two pipes is 1/2PA+1/2PB, single tube total power and single tube half-power are 1/2PA+PB, 1/2PB+PA.By that analogy, it is the electric heater 100 of more than two structure for electrothermal tube,, by the control of power selection module 3032 corresponding to each above-mentioned electrothermal tube and half-wave rectification block 3031, can provide for example eight kinds of above heating power combinations of more power combination kinds.
In sum, according to the electric heater of the utility model embodiment, by with N electrothermal tube N power selection circuitry one to one, can be respectively according to the connection of power division signal controlling the first power branch road or the second power branch road, and then corresponding electrothermal tube is realized to half-power or flat-out distribution, thereby can provide more kinds of power combination kinds, function and adaptability that can improving product, more user-friendly, without the structure that changes electrothermal tube, can not increase the installation strength of electrothermal tube, can not increase cost, do not affect the production efficiency of electric heater complete machine.In addition, the each electrothermal tube in N electrothermal tube all can be realized half-power heating by half-wave rectification block, and in the situation that there is power limitations, the adaptability of electric heater is stronger.In addition, when electrothermal tube is worked with half-power, half when its surface loading is also reduced to full power operation, now the surface temperature of electrothermal tube reduces, thereby can reduce and delay to produce high temperature incrustation scale, and then avoid electrothermal tube appearance to assemble and occur heating the phenomenon of booster because of incrustation scale, the security that has improved electric heater, can extend service life of electric heater.
Based on the structure of above-mentioned electric heater, the control method of a kind of electric heater proposing according to embodiment on the other hand of the present utility model is described with reference to the accompanying drawings.Wherein, electric heater comprises N electrothermal tube and heating power control device, heating power control device comprises N power selection circuitry, N power selection circuitry is corresponding one by one with N electrothermal tube, N power selection circuitry comprises respectively the first power branch road and the second power branch road, and the first power branch road comprises half-wave rectification block.
Fig. 4 is according to the flow chart of the control method of the electric heater of an embodiment of the present utility model.As shown in Figure 4, the control method of the electric heater of the utility model embodiment comprises the following steps:
S1, receives user's selection instruction with generating power signal.
Particularly, can receive user instruction with generating power signal by power selection button, that is to say, user selects the operating power of electric heater by power selection button.
S2, according to power signal generating power distributing signal, and is sent to N power selection circuitry by power division signal.
Say the power signal of the electric heater need of work of selecting according to user, send power division signal and with which electrothermal tube of controlling in N electrothermal tube open, and the power of the electrothermal tube of opening.
S3, controls respectively the first corresponding power branch road and the break-make of the second power branch road according to power division signal by N power selection circuitry, to select respectively the heating power of N electrothermal tube.
For example, N power selection circuitry can be selected by relay, and wherein, relay can be one or two.
Wherein, if the first power branch road is connected, for example civil power process half-wave rectification block of input current, because civil power is sinusoidal ac, reduce to flat-out half through the power of electrothermal tube corresponding with this power selection circuitry after halfwave rectifier, that is to say, the first power branch road is connected the distribution that can realize the half-power to corresponding electrothermal tube.In addition, if select the second power branch road to connect according to power division signal, the electrothermal tube that for example mains supply of input power can be directly corresponding with this power selection circuitry is communicated with, and can realize this electrothermal tube full power allocation.Be understandable that, at N heating tube while being multiple, each electrothermal tube has corresponding with it power selection circuitry, can carry out total power and half-power distributes, realize the selection of the heating power of each electrothermal tube, thereby N electrothermal tube can be combined into different power kinds, forms many power electric water heaters more than many power.
Particularly, if one of them power selection circuitry in N power selection circuitry receives heating with full power instruction, connect by the second power branch road corresponding to power selection circuitry control, and control the first corresponding power branch road and disconnect, so that the electrothermal tube corresponding with this power selection heats with half-power.If one of them power selection circuitry in N power selection circuitry receives half-power heating instruction, connect by the first power branch road corresponding to power selection circuitry control, and control the second corresponding power branch road and disconnect, so that electrothermal tube that should power selection circuitry is heated with total power.Thereby realize selection and distribution to N electrothermal tube heating power.
S4, according to the break-make of N the electrothermal tube of temperature control of water in inner container of electric water heater, so that N electrothermal tube heats with corresponding heating power respectively.
By temperature controller according to energising and the power-off of water temperature control electrothermal tube, namely heat or stop heating.For example, if the temperature of water is less than design temperature in the inner bag of electric heater, temperature controller is connected external power source, and then the electrothermal tube that is assigned to heating power in N electrothermal tube heats with the heating power distributing, until the temperature of water reaches preset temperature in inner bag, temperature controller cuts off external power source, and electric heater quits work.
According to the control method of the electric heater of the utility model embodiment, by control with N electrothermal tube one to one N power selection circuitry select the connection of the first power branch road or the second power branch road, and then corresponding electrothermal tube is realized to half-power or flat-out distribution, thereby more kinds of power combination kinds can be provided, more user-friendly.In addition, connect by N power selection circuitry control the first power branch road, the each electrothermal tube in N electrothermal tube all can be realized half-power heating, in the situation that there is power limitations, makes the adaptability of electric heater stronger.In addition, by controlling electrothermal tube with half-power work, can reduce and delay to produce high temperature incrustation scale, and then avoiding electrothermal tube appearance to assemble and occur heating the phenomenon of booster because of incrustation scale, the security that has improved electric heater, can extend service life of electric heater.
In addition, from more on the one hand the heating power control device of the electric heater of embodiment to the utility model embodiment describe.Wherein, electric heater comprises N electrothermal tube 10.
Fig. 5 is according to the block diagram of the heating power control device of the electric heater of an embodiment of the present utility model, as shown in Figure 5, the heating power control device 30 of the utility model embodiment comprises power selection button 301, controller 302 and N power selection circuitry 303.Wherein, power selection button 301, for receiving user instruction with generating power signal, that is to say, user selects the operating power of electric heater by power selection button 301.Controller 302 is connected respectively with N power selection circuitry 303 with power selection button 301, controller 302 is according to power signal generating power distributing signal, and power division signal is sent to N power selection circuitry 303, say that controller 302 is according to the power signal of the electric heater need of work of user's selection, send power division signal and with which electrothermal tube of controlling in N electrothermal tube 10 open, and the power of the electrothermal tube of opening.
N power selection circuitry 303 is corresponding one by one with N electrothermal tube, and each power selection circuitry comprises half-wave rectification block 3031 and power selection module 3032.Wherein, the first output 1 of power selection module 3032 is connected with one end of half-wave rectification block 3031, and the other end of half-wave rectification block 3031 connects with the other end of corresponding electrothermal tube, to form the first power branch road.The second output 2 of power selection module 3032 directly connects with the other end of corresponding electrothermal tube, to form the second power branch road.Power selection module 3032 according to the break-make of power division signal controlling the first power branch road and the second power branch road to select the heating power of corresponding electrothermal tube.
Further, power selection module 3032 comprises relay unit 30321, relay unit 30321 according to the break-make of power division signal controlling the first power branch road and the second power branch road to select the heating power of corresponding electrothermal tube.
Particularly, can select the first power branch road to connect or the connection of the second power branch road by power selection module 3032.For example power selection module 3032 can arrange relay unit 30321, according to the break-make of the power division signal control relay unit 30321 of the controller 302 receiving, and then the break-make of control the first power branch road or the second power branch road, wherein, relay unit 30321 can be one or two.If power selection module 3032 is controlled the first power branch road and is connected, input current for example civil power through after power selection module 3032, and then by half-wave rectification block 3031, because civil power is sinusoidal ac, reduce to flat-out half through the power of electrothermal tube corresponding with this power selection circuitry after halfwave rectifier, that is to say, the first power branch road is connected the distribution that can realize the half-power to corresponding electrothermal tube.In addition, if power selection module 3032 selects the second power branch road to connect according to power division signal, the electrothermal tube that for example mains supply of input power can be directly corresponding with this power selection circuitry is communicated with, and can realize this electrothermal tube full power allocation.
Put it briefly, power selection button 301 receives user's power selection, the power signal that controller 302 is selected according to user, judge how N the electrothermal tube in electrothermal tube 10 need to carry out power division, in other words, for example controller 302 judges which electrothermal tube in N electrothermal tube 10 needs to open, and the heating power that judges each electrothermal tube is for example with half-power heating or heating with full power, generating power distributing signal, and power division signal is sent to N power selection circuitry 303, and then N power selection circuitry 303 is according to the power division signal receiving, power ratio control selects the branch road of circuit to connect respectively, for example, wherein a road power selection circuitry 303 receives half-power heating signal, controlling the electrothermal tube corresponding with this power selection circuitry heats with half-power, its the first power branch road of this power selection circuitry control is connected.Be understandable that, at N heating tube 10 while being multiple, each electrothermal tube has corresponding with it power selection circuitry, can carry out total power and half-power distributes, realize the selection of the heating power of each electrothermal tube, thereby N electrothermal tube 10 can be combined into different power kinds, forms many power electric water heaters more than many power.
The course of work of the heating power control device of the electric heater proposing with specific embodiment explanation the utility model embodiment below.Fig. 6 is according to the block diagram of the heating power control device of the electric heater of a specific embodiment of the present utility model.As shown in Figure 6, the electric heater in this embodiment comprises an electrothermal tube, similarly has the power selection circuitry corresponding with electrothermal tube, selects the first power branch road and the second power branch road to realize distribute half-power and total power by power selection circuitry.Wherein, in the time that connection the second power branch road is full power allocation, for example mains supply of external power source is directly connected with electrothermal tube by power supply access device, temperature controller, power selection module 3032.Be that half-power is divided timing connecting the first power branch road, external power source is connected with electrothermal tube with half-wave rectification block 3031 through power supply access device, temperature controller, power selection module 3032, thereby realizes half-power heating.Can find out, can provide total power P and two kinds of heating powers of half-power 1/2P for the electric heater of single electrothermal tube.
In addition, if N electrothermal tube 10 is multiple, can realize more kinds of power combination kinds according to the power division of the heating power control device 30 of the electric heater of the utility model embodiment and selection.For example, in the time that electric heater is two electrothermal tubes, by the control of power selection module 3032 corresponding to each electrothermal tube and half-wave rectification block 3031, electric heater can be realized eight kinds of heating power combinations, for example comprise: single tube heating with full power is PA (the independent heating with full power of one of them electrothermal tube) and PB (the independent heating with full power of another electrothermal tube), single tube half-power heating 1/2PA and 1/2PB, the equal heating with full power of two pipes is PA+PB, the equal half-power heating of two pipes is 1/2PA+1/2PB, single tube total power and single tube half-power are 1/2PA+PB, 1/2PB+PA.By that analogy, it is the electric heater of more than two structure for electrothermal tube,, by the control of power selection module 3032 corresponding to each above-mentioned electrothermal tube and half-wave rectification block 3031, can provide for example eight kinds of above heating power combinations of more power combination kinds.
In sum, according to the heating power control device of the electric heater of the utility model embodiment, by with N electrothermal tube N power selection circuitry one to one, can be respectively according to the connection of power division signal controlling the first power branch road or the second power branch road, and then corresponding electrothermal tube is realized to half-power or flat-out distribution, thereby more kinds of power combination kinds can be provided, function and adaptability that can improving product, more user-friendly.In addition, the each electrothermal tube in N electrothermal tube all can be realized half-power heating by half-wave rectification block, and in the situation that there is power limitations, the adaptability of electric heater is stronger.In addition, when electrothermal tube is worked with half-power, half when its surface loading is also reduced to full power operation, now the surface temperature of electrothermal tube reduces, thereby can reduce and delay to produce high temperature incrustation scale, and then avoid electrothermal tube appearance to assemble and occur heating the phenomenon of booster because of incrustation scale, the security that has improved electric heater, can extend service life of electric heater.
Heating power control device based on above-mentioned electric heater, describes with reference to the accompanying drawings according to the heating power control method of the electric heater of another aspect embodiment proposition of the present utility model.Wherein, electric heater comprises N electrothermal tube.
Fig. 7 is according to the flow chart of the heating power control method of the electric heater of an embodiment of the present utility model.As shown in Figure 7, control method comprises the following steps:
S10, receives user's selection instruction with generating power signal.
Particularly, can receive user instruction with generating power signal by power selection button, that is to say, user selects the operating power of electric heater by power selection button.
S20, according to power signal generating power distributing signal, and power division signal is sent to N power selection circuitry, wherein, N power selection circuitry is corresponding one by one with N electrothermal tube, N power selection circuitry comprises respectively the first power branch road and the second power branch road, and the first power branch road comprises half-wave rectification block.
Say the power signal of the electric heater need of work of selecting according to user, send power division signal and with which electrothermal tube of controlling in N electrothermal tube open, and the power of the electrothermal tube of opening.
S30, controls respectively the first corresponding power branch road and the break-make of the second power branch road according to power division signal by N power selection circuitry, to select respectively the heating power of N electrothermal tube.
For example, N power selection circuitry can be selected by relay, and wherein, relay can be one or two.
Wherein, if the first power branch road is connected, for example civil power process half-wave rectification block of input current, because civil power is sinusoidal ac, reduce to flat-out half through the power of electrothermal tube corresponding with this power selection circuitry after halfwave rectifier, that is to say, the first power branch road is connected the distribution that can realize the half-power to corresponding electrothermal tube.In addition, if select the second power branch road to connect according to power division signal, the electrothermal tube that for example mains supply of input power can be directly corresponding with this power selection circuitry is communicated with, and can realize this electrothermal tube full power allocation.Be understandable that, at N heating tube while being multiple, each electrothermal tube has corresponding with it power selection circuitry, can carry out total power and half-power distributes, realize the selection of the heating power of each electrothermal tube, thereby N electrothermal tube can be combined into different power kinds, forms many power electric water heaters more than many power.
Particularly, if one of them power selection circuitry in N power selection circuitry receives heating with full power instruction, connect by the second power branch road corresponding to power selection circuitry control, and control the first corresponding power branch road and disconnect, so that the electrothermal tube corresponding with this power selection heats with half-power.If one of them power selection circuitry in N power selection circuitry receives half-power heating instruction, connect by the first power branch road corresponding to power selection circuitry control, and control the second corresponding power branch road and disconnect, so that electrothermal tube that should power selection circuitry is heated with total power.Thereby realize selection and distribution to N electrothermal tube heating power.
According to the heating power control method of the electric heater of the utility model embodiment, by control with N electrothermal tube one to one N power selection circuitry select the connection of the first power branch road or the second power branch road, and then corresponding electrothermal tube is realized to half-power or flat-out distribution, thereby more kinds of power combination kinds can be provided, more user-friendly.In addition, connect by N power selection circuitry control the first power branch road, the each electrothermal tube in N electrothermal tube all can be realized half-power heating, in the situation that there is power limitations, makes the adaptability of electric heater stronger.In addition, by controlling electrothermal tube with half-power work, can reduce and delay to produce high temperature incrustation scale, and then avoiding electrothermal tube appearance to assemble and occur heating the phenomenon of booster because of incrustation scale, the security that has improved electric heater, can extend service life of electric heater.
Any process of otherwise describing in flow chart or at this or method are described and can be understood to, represent to comprise that one or more is for realizing the module of code of executable instruction of step of specific logical function or process, fragment or part, and the scope of preferred embodiment of the present utility model comprises other realization, wherein can be not according to order shown or that discuss, comprise according to related function by the mode of basic while or by contrary order, carry out function, this should be understood by embodiment person of ordinary skill in the field of the present utility model.
The logic and/or the step that in flow chart, represent or otherwise describe at this, for example, can be considered to the sequencing list of the executable instruction for realizing logic function, may be embodied in any computer-readable medium, use for instruction execution system, device or equipment (as computer based system, comprise that the system of processor or other can and carry out the system of instruction from instruction execution system, device or equipment instruction fetch), or use in conjunction with these instruction execution systems, device or equipment.With regard to this description, " computer-readable medium " can be anyly can comprise, device that storage, communication, propagation or transmission procedure use for instruction execution system, device or equipment or in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wirings, portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), the erasable read-only storage (EPROM or flash memory) of editing, fiber device, and portable optic disk read-only storage (CDROM).In addition, computer-readable medium can be even paper or other the suitable medium that can print described program thereon, because can be for example by paper or other media be carried out to optical scanner, then edit, decipher or process in electronics mode and obtain described program with other suitable methods if desired, be then stored in computer storage.
Should be appreciated that each several part of the present utility model can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple steps or method can realize with being stored in software or the firmware carried out in memory and by suitable instruction execution system.For example, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: there is the discrete logic for data-signal being realized to the logic gates of logic function, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is can carry out the hardware that instruction is relevant by program to complete, described program can be stored in a kind of computer-readable recording medium, this program, in the time carrying out, comprises step of embodiment of the method one or a combination set of.
In addition, the each functional unit in each embodiment of the utility model can be integrated in a processing module, can be also that the independent physics of unit exists, and also can be integrated in a module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and also can adopt the form of software function module to realize.If described integrated module realizes and during as production marketing independently or use, also can be stored in a computer read/write memory medium using the form of software function module.
The above-mentioned storage medium of mentioning can be read-only storage, disk or CD etc.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that not departing from principle of the present utility model and spirit and can carry out multiple variation, amendment, replacement and modification to these embodiment, scope of the present utility model is by claims and be equal to and limit.
Claims (5)
1. an electric heater, is characterized in that, described electric heater comprises N electrothermal tube, Temperature Detector, heating power control device and temperature controller, wherein,
One end of each electrothermal tube in a described N electrothermal tube is all connected with one end of external power source;
Described Temperature Detector is for detection of the temperature of water in described inner container of electric water heater, and described Temperature Detector is connected with described temperature controller;
Described heating power control device comprises power selection button, a controller and N power selection circuitry, wherein,
Described power selection button is used for receiving user instruction with generating power signal;
Described controller is connected respectively with a described N power selection circuitry with described power selection button, and described controller is according to described power signal generating power distributing signal, and described power division signal is sent to a described N power selection circuitry;
A described N power selection circuitry is corresponding one by one with a described N electrothermal tube, and each power selection circuitry comprises half-wave rectification block and power selection module, wherein,
The first output of described power selection module is connected with one end of described half-wave rectification block, and the other end of described half-wave rectification block connects with the other end of corresponding electrothermal tube, to form the first power branch road;
The second output of described power selection module connects with the other end of corresponding electrothermal tube, to form the second power branch road;
Described power selection module according to the break-make of the first power branch road described in described power division signal controlling and described the second power branch road to select the heating power of electrothermal tube of described correspondence;
Described temperature controller is connected with the other end of input, described Temperature Detector and the described external power source of each power selection module of a described N power selection circuitry respectively, described temperature controller according to the break-make of N electrothermal tube described in the temperature control of water in described inner container of electric water heater so that a described N electrothermal tube heat with the described heating power of correspondence respectively.
2. electric heater as claimed in claim 1, is characterized in that, described power selection module comprises:
Relay unit, described relay unit according to the break-make of the first power branch road described in described power division signal controlling and described the second power branch road to select the heating power of electrothermal tube of described correspondence.
3. electric heater as claimed in claim 1, is characterized in that, also comprises:
Power supply access device, the first input end of described power supply access device is connected with one end of described external power source, the second input of described power supply access device is connected with the other end of described external power source, the first output of described power supply access device is connected respectively with one end of each electrothermal tube of a described N electrothermal tube, and the second output of described power supply access device is connected with described temperature controller.
4. a heating power control device for electric heater, is characterized in that, described electric heater comprises N electrothermal tube, and described heating power control device comprises power selection button, a controller and N power selection circuitry, wherein,
Described power selection button is used for receiving user instruction with generating power signal;
Described controller is connected respectively with a described N power selection circuitry with described power selection button, and described controller is according to described power signal generating power distributing signal, and described power division signal is sent to a described N power selection circuitry;
A described N power selection circuitry is corresponding one by one with a described N electrothermal tube, and each power selection circuitry comprises half-wave rectification block and power selection module, wherein,
The first output of described power selection module is connected with one end of described half-wave rectification block, and one end of described half-wave rectification block connects with the other end of corresponding electrothermal tube, to form the first power branch road;
The second output of described power selection module connects with the other end of corresponding electrothermal tube, to form the second power branch road;
Described power selection module according to the break-make of the first power branch road described in described power division signal controlling and described the second power branch road to select the heating power of electrothermal tube of described correspondence.
5. the heating power control device of electric heater as claimed in claim 4, is characterized in that, described power selection module comprises:
Relay unit, described relay unit according to the connection of the first power branch road described in described power division signal controlling and described the second power branch road to select the heating power of electrothermal tube of described correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291346.7U CN203893430U (en) | 2014-06-03 | 2014-06-03 | Electric water heater and heating power control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291346.7U CN203893430U (en) | 2014-06-03 | 2014-06-03 | Electric water heater and heating power control device |
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| CN203893430U true CN203893430U (en) | 2014-10-22 |
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| CN201420291346.7U Expired - Lifetime CN203893430U (en) | 2014-06-03 | 2014-06-03 | Electric water heater and heating power control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110867A (en) * | 2014-06-03 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Electric water heater, control method of electric water heater and heating power controlling device and method |
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2014
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110867A (en) * | 2014-06-03 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Electric water heater, control method of electric water heater and heating power controlling device and method |
| CN104110867B (en) * | 2014-06-03 | 2017-02-01 | 芜湖美的厨卫电器制造有限公司 | Electric water heater, control method of electric water heater and heating power controlling device and method |
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