CN104931106A - Heat pump water heater and water amount monitoring device of heat pump water heater - Google Patents
Heat pump water heater and water amount monitoring device of heat pump water heater Download PDFInfo
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- CN104931106A CN104931106A CN201510336503.0A CN201510336503A CN104931106A CN 104931106 A CN104931106 A CN 104931106A CN 201510336503 A CN201510336503 A CN 201510336503A CN 104931106 A CN104931106 A CN 104931106A
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Abstract
The invention discloses a heat pump water heater and a water amount monitoring device of the heat pump water heater. The device comprises a both-piezoelectric ceramic transducer, a signal processing chip and a master control chip. A first piezoelectric ceramic and a second piezoelectric ceramic included in the both-piezoelectric ceramic transducer are arranged on the two sides of a water outlet/inlet pipe respectively. The signal processing chip sends a triggering signal to one of the first piezoelectric ceramic and the second piezoelectric ceramic to trigger one piezoelectric ceramic to be started, and receives a feedback signal sent by the other piezoelectric ceramic, and a first time difference between the feedback signal and the triggering signal is obtained; a triggering signal is sent to the other piezoelectric ceramic to trigger the other piezoelectric ceramic to be started, a feedback signal sent by one piezoelectric ceramic is received, a second time difference between the feedback signal and the triggering signal is obtained, and the water flow in the water outlet/inlet pipe is calculated according to the first time difference and the second time difference. The master control chip calculates the water usage amount within a first preset time according to the water flow within the first preset time, and therefore the measuring accuracy can be improved, installing is convenient, and the assembling of the whole machine is not affected.
Description
Technical field
The present invention relates to technical field of electric appliances, particularly a kind of water quantity monitoring device of heat pump water-heating machine and a kind of heat pump water-heating machine.
Background technology
At present, there is water yield statistics relative with the heat pump water-heating machine of billing function less, the particularly heat pump water-heating machine of family expenses.Raising along with people's living standard and the attention to energy-saving environmental protection device, the concrete service condition of water power is also more and more paid attention to.
In the related, generally by increasing the water consumption that heat pump water-heating machine measured by a water meter on pipeline.But its shortcoming existed adds installation difficulty and the cost of equipment, and simultaneously because water meter is water route components and parts, its crash rate is also higher, and the accuracy of measurement of water consumption is lower.
Summary of the invention
The present invention is intended to solve one of technical matters in correlation technique at least to a certain extent.For this reason, one object of the present invention is the water quantity monitoring device proposing a kind of heat pump water-heating machine, and this device installs simple and convenient and installing space is little, and can improve accuracy of measurement.
Another object of the present invention is to propose a kind of heat pump water-heating machine.
For achieving the above object, the present invention proposes a kind of water quantity monitoring device of heat pump water-heating machine on the other hand, comprise: double piezoelectric ceramic transducer, described double piezoelectric ceramic transducer comprises the first piezoelectric ceramics and the second piezoelectric ceramics, and described first piezoelectric ceramics and the second piezoelectric ceramics are separately positioned on the both sides of the rising pipe/water inlet pipe of described heat pump water-heating machine, signal processing chip, described signal processing chip is connected with described second piezoelectric ceramics with described first piezoelectric ceramics respectively, described signal processing chip is used for first sending trigger pip to a piezoelectric ceramics in described first piezoelectric ceramics and described second piezoelectric ceramics and starts to trigger a described piezoelectric ceramics, and receive the feedback signal of another piezoelectric ceramics transmission in described first piezoelectric ceramics and described second piezoelectric ceramics, and the very first time obtained between described feedback signal and described trigger pip is poor, send trigger pip to another piezoelectric ceramics described again to start to trigger another piezoelectric ceramics described, and receive the feedback signal of described piezoelectric ceramics transmission, and the second mistiming obtained between described feedback signal and described trigger pip, the discharge in described rising pipe/water inlet pipe is calculated afterwards according to described very first time difference and described second mistiming, main control chip, described main control chip is connected with described signal processing chip, and described main control chip is used for the water consumption calculated according to the discharge in the first Preset Time in described first Preset Time.
According to the water quantity monitoring device of the heat pump water-heating machine that the embodiment of the present invention proposes, in the both sides of the rising pipe/water inlet pipe of heat pump water-heating machine, the first piezoelectric ceramics and the second piezoelectric ceramics are set respectively, and first send trigger pip to trigger a piezoelectric ceramics startup to a piezoelectric ceramics in the first piezoelectric ceramics and the second piezoelectric ceramics by signal processing chip, and receive the feedback signal of another piezoelectric ceramics transmission in the first piezoelectric ceramics and the second piezoelectric ceramics, obtain the mistiming between feedback signal and trigger pip, then, trigger pip is being sent to trigger the startup of another piezoelectric ceramics again to another piezoelectric ceramics, and receive the feedback signal of a piezoelectric ceramics transmission, and the second mistiming obtained between feedback signal and trigger pip, and the discharge calculated according to very first time difference and the second mistiming in water pipe/water inlet pipe, main control chip calculates the water consumption in the first Preset Time according to the discharge in the first Preset Time.Thus, by double piezoelectric ceramic transducer monitoring discharge, double piezoelectric ceramic transducer does not need to contact with water, adds the serviceable life of water quantity monitoring device, and improves accuracy of measurement.In addition, the installation of this water quantity monitoring device is simple and convenient, installing space is little, is directly installed on the rising pipe/water inlet pipe of unit, does not affect final assembly.
According to one embodiment of present invention, the water quantity monitoring device of described heat pump water-heating machine also comprises: high accurate calculagraph, described high accurate calculagraph is connected with described signal processing chip, described high accurate calculagraph starts timing when described signal processing chip sends described trigger pip and stops timing when described signal processing chip receives described feedback signal, differ from and described second mistiming with the described very first time of recording between described feedback signal and described trigger pip, and described very first time difference and described second mistiming are sent to described signal processing chip.
Further, according to one embodiment of present invention, the water quantity monitoring device of described heat pump water-heating machine also comprises: human-computer interaction interface, described human-computer interaction interface is connected with described main control chip, wherein, described main control chip controls the water consumption in described first Preset Time of described human-computer interaction interface display.
According to one embodiment of present invention, described human-computer interaction interface is also for receiving the water rate unit price of user's input; Described main control chip also for calculating the water rate in described first Preset Time according to the water consumption in described water rate unit price and described first Preset Time, and controls the water rate in described first Preset Time of described human-computer interaction interface display.
According to one embodiment of present invention, described main control chip is also for calculating the water consumption in described second Preset Time according to the discharge of the second Preset Time, and the water consumption in described second Preset Time is judged, wherein, if the water consumption in described second Preset Time and the difference between benchmark water consumption are greater than predetermined threshold value, described main control chip then judges that the water route of described heat pump water-heating machine is leaked.
According to one embodiment of present invention, described main control chip is also for judging whether the discharge in described rising pipe/water inlet pipe continues to be greater than zero in the 3rd Preset Time, and the discharge in described rising pipe/water inlet pipe when continuing to be greater than zero in described 3rd Preset Time, described main control chip judges that the water route of described heat pump water-heating machine is leaked.
According to one embodiment of present invention, described main control chip, after judging that the water route of described heat pump water-heating machine is leaked, also controls described human-computer interaction interface and points out to user.
According to one embodiment of present invention, described first piezoelectric ceramics and described second piezoelectric ceramics be horizontally set on described rising pipe/water inlet pipe just to both sides.
For achieving the above object, the present invention another aspect provides a kind of heat pump water-heating machine, comprises the water quantity monitoring device of described heat pump water-heating machine.
According to the heat pump water-heating machine that the embodiment of the present invention proposes, discharge can be monitored more accurately by above-mentioned water quantity monitoring device, and double piezoelectric ceramic transducer does not need to contact with water, add the serviceable life of water quantity monitoring device, and the installation of this water quantity monitoring device is simple and convenient, installing space is little, do not affect final assembly, can be directly installed on the rising pipe/water inlet pipe of unit.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the water quantity monitoring device of heat pump water-heating machine according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of the water quantity monitoring device of heat pump water-heating machine according to an embodiment of the invention; And
Fig. 3 is the signal schematic representation of signal processing chip in the water quantity monitoring device of heat pump water-heating machine according to an embodiment of the invention.
Reference numeral:
Double piezoelectric ceramic transducer 10, first piezoelectric ceramics A, the second piezoelectric ceramics B, signal processing chip 20, main control chip 30, rising pipe/water inlet pipe 40, high accurate calculagraph 50 and human-computer interaction interface 60.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below with reference to the accompanying drawings the heat pump water-heating machine of embodiment of the present invention proposition and the water quantity monitoring device of heat pump water-heating machine are described.This water quantity monitoring device is specially adapted to domestic heat pump unit, is convenient to user and monitors water yield service condition.
According to one embodiment of present invention, heat pump water-heating machine can comprise parts and the refrigerants as heat transfer medium such as compressor, blower fan, evaporator and heat interchanger, should be understood that, the concrete structure, principle of work etc. of heat pump water-heating machine and all parts thereof have been prior art all, and be well known to those of ordinary skill in the art, here for succinct object, be described in detail no longer one by one.
Fig. 1 is the schematic diagram of the water quantity monitoring device of heat pump water-heating machine according to the embodiment of the present invention.As shown in Figure 1, the water quantity monitoring device of this heat pump water-heating machine comprises: double piezoelectric ceramic transducer 10, signal processing chip 20 and main control chip 30.
Wherein, double piezoelectric ceramic transducer 10 comprises the first piezoelectric ceramics A and the second piezoelectric ceramics B, and the first piezoelectric ceramics A and the second piezoelectric ceramics B is separately positioned on the both sides of the rising pipe/water inlet pipe 40 of heat pump water-heating machine.Particularly, as shown in Figure 1, the first piezoelectric ceramics A and the second piezoelectric ceramics B can be horizontally set on rising pipe/water inlet pipe 40 just to both sides, and the first piezoelectric ceramics A and the second piezoelectric ceramics B needs to maintain a certain distance in the horizontal direction.
Signal processing chip 20 is connected with the second piezoelectric ceramics B with the first piezoelectric ceramics A respectively, signal processing chip 20 starts to trigger a piezoelectric ceramics for first sending trigger pip to a piezoelectric ceramics in the first piezoelectric ceramics A and the second piezoelectric ceramics B, and receive the feedback signal of another piezoelectric ceramics transmission in the first piezoelectric ceramics A and the second piezoelectric ceramics B, and the very first time obtained between feedback signal and trigger pip is poor (wherein, mistiming also can be described as the transit time), send trigger pip to another piezoelectric ceramics again to start to trigger another piezoelectric ceramics, and receive the feedback signal of a piezoelectric ceramics transmission, and the second mistiming obtained between feedback signal and trigger pip, the discharge in water pipe/water inlet pipe is calculated afterwards according to very first time difference and the second mistiming, main control chip 30 is connected with signal processing chip 20, and main control chip 30 is for calculating the water consumption in the first Preset Time according to the discharge in the first Preset Time.
It should be noted that, signal processing chip 20 possesses multi-channel mode, and this multi-channel mode automatically can change the transceiver mode of double piezoelectric ceramic transducer 10 and A sends out B receipts pattern and B sends out A receipts pattern.Particularly, signal processing chip 20 can comprise transmission the transmitting driving circuit of trigger pip, the receiving conditioning circuit of receiving feedback signals and MUX, like this, send after trigger pip to the first piezoelectric ceramics A at signal processing chip 20, MUX will disconnect transmitting driving circuit, and the feedback signal that the receiving conditioning circuit connecting an other road feeds back to receive the second piezoelectric ceramics B, thus realize A and send out B and receive pattern; And send after trigger pip to the second piezoelectric ceramics B at signal processing chip 20, MUX will disconnect transmitting driving circuit, and the feedback signal that the receiving conditioning circuit connecting an other road feeds back to receive the first piezoelectric ceramics A, thus realize B and send out A and receive pattern.
Also it should be noted that, piezoelectric ceramics can convert the electrical signal to ultrasonic signal and launch, and the ultrasonic signal received is converted to electric signal.Particularly, after a piezoelectric ceramics in the first piezoelectric ceramics A and the second piezoelectric ceramics B receives the electric signal of signal processing chip 20 transmission, a piezoelectric ceramics can convert the electrical signal to ultrasonic signal, ultrasonic signal can produce different transmission speed by different medium, another piezoelectric ceramic energy converts the ultrasonic signal detected to electric signal, and electric signal is fed back to signal processing chip 20.
According to a concrete example of the present invention, trigger pip and feedback signal all can be pulse signal.
Specifically, in embodiments of the present invention, trigger pip and feedback signal all can be electric signal.Like this, in the process of the water yield of the rising pipe/water inlet pipe 40 of monitoring heat pump water-heating machine, signal processing chip 20 can send trigger pip to such as the first piezoelectric ceramics A of a piezoelectric ceramics in the first piezoelectric ceramics A and the second piezoelectric ceramics B, first piezoelectric ceramics A will produce ultrasonic signal under trigger pip triggers, ultrasonic signal is transferred to another piezoelectric ceramics such as the second piezoelectric ceramics B by rising pipe/water inlet pipe 40, second piezoelectric ceramics B generates feedback signal after receiving ultrasonic signal and by feedback signal back to signal processing chip 20, signal processing chip 20 can obtain the transit time of very first time difference between feedback signal and trigger pip and A to B, afterwards, signal processing chip 20 can send trigger pip to such as the second piezoelectric ceramics B of another piezoelectric ceramics in the first piezoelectric ceramics A and the second piezoelectric ceramics B, second piezoelectric ceramics B will produce ultrasonic signal under trigger pip triggers, ultrasonic signal is transferred to a piezoelectric ceramics such as the first piezoelectric ceramics A by rising pipe/water inlet pipe 40, first piezoelectric ceramics A generates feedback signal after receiving ultrasonic signal and by feedback signal back to signal processing chip 20, signal processing chip 20 can obtain the transit time of the second mistiming between feedback signal and trigger pip and B to A.The discharge that the different transit time is corresponding different, relational expression (or showing) between the transit time of signal processing chip 20 interior can prestore A to B transit time and B to A and discharge, by query relation formula (or table), the discharge in water pipe/water inlet pipe can be calculated according to the transit time of A to B transit time and B to A.And then main control chip 30 can calculate the water consumption in the first Preset Time according to the discharge in the first Preset Time.
Wherein, the discharge in rising pipe/water inlet pipe can calculate according to the mean flow rate of water in rising pipe/water inlet pipe, it should be understood that the formula needed for above-mentioned calculating is prior art, is well known to those skilled in the art, repeats no more here.According to a specific embodiment of the present invention, the water supposing in rising pipe/water inlet pipe first flows through the second piezoelectric ceramics B and flows through the first piezoelectric ceramics A again, and signal processing chip 20 can calculate the mean flow rate V of water in water pipe/water inlet pipe according to following formula (1):
V＝((TOF
BA-TOF
AB)×C
2)/2L (1)
Wherein, V is the mean flow rate of water in rising pipe/water inlet pipe, TOF
bAbe the transit time of the second mistiming B to A, TOF
aBfor the transit time of very first time difference and A to B, C is the velocity of propagation of ultrasound wave in water, and L is the first piezoelectric ceramics A and the second piezoelectric ceramics B distance in the horizontal direction.
It should be noted that, the derivation of above-mentioned formula (1) is as follows:
According to correlation technique:
Wherein, D is the internal diameter of rising pipe/water inlet pipe.
For same distance, the transit time of ultrasonic signal needed in adverse current is greater than the time required in following current, by TOF
bAdeduct TOF
aBto obtain difference DELTA T, that is:
Above-mentioned formula (2), through abbreviation, can obtain,
ΔT(C
2-V
2)＝2×L×V (3)
Due to relative to hyperacoustic velocity of propagation, water velocity is negligible, and institute with the formula (3) can abbreviation be formula (1):
V＝((TOF
BA-TOF
AB)×C
2)/2L
Like this, the mean flow rate of water outlet can be calculated according to the transit time of A to B transit time and B to A, and then calculate discharge.
Thus, the water quantity monitoring device of the heat pump water-heating machine that the embodiment of the present invention proposes, in the both sides of the rising pipe/water inlet pipe of heat pump water-heating machine, the first piezoelectric ceramics and the second piezoelectric ceramics are set respectively, and first send trigger pip to trigger a piezoelectric ceramics startup to a piezoelectric ceramics in the first piezoelectric ceramics and the second piezoelectric ceramics by signal processing chip, and receive the feedback signal of another piezoelectric ceramics transmission in the first piezoelectric ceramics and the second piezoelectric ceramics, obtain the mistiming between feedback signal and trigger pip, then, trigger pip is being sent to trigger the startup of another piezoelectric ceramics again to another piezoelectric ceramics, and receive the feedback signal of a piezoelectric ceramics transmission, and the second mistiming obtained between feedback signal and trigger pip, and the discharge calculated according to very first time difference and the second mistiming in water pipe/water inlet pipe, main control chip calculates the water consumption in the first Preset Time according to the discharge in the first Preset Time.Like this, by double piezoelectric ceramic transducer monitoring discharge, double piezoelectric ceramic transducer does not need to contact with water, adds the serviceable life of water quantity monitoring device, and improves accuracy of measurement.In addition, the installation of this water quantity monitoring device is simple and convenient, installing space is little, is directly installed on the rising pipe/water inlet pipe of unit, does not affect final assembly.
Further, according to one embodiment of present invention, as shown in Figure 2, the water quantity monitoring device of heat pump water-heating machine also comprises: high accurate calculagraph 50.Wherein, high accurate calculagraph 50 is connected with signal processing chip 20, high accurate calculagraph 50 starts timing when signal processing chip 20 sends trigger pip and stops timing when signal processing chip 20 receives feedback signal, differ from and the second mistiming with the very first time of recording between feedback signal and trigger pip, and very first time difference and the second mistiming are sent to signal processing chip 20.That is, high accurate calculagraph 50 can be used for measuring the very first time difference between feedback signal and trigger pip and the second mistiming, to make signal processing chip 20 according to the discharge in very first time difference and the second mistiming calculating certain hour.
Particularly, as shown in Figure 3, while signal processing chip 20 sends trigger pip, signal processing chip 20 also sends commencing signal to high accurate calculagraph 50 and starts timing to make high accurate calculagraph 50, and while signal processing chip 20 receives feedback signal, signal processing chip 20 also sends stop signal to high accurate calculagraph 50 and stops timing to make high accurate calculagraph 50.In other words, the moment that high accurate calculagraph 50 is sending trigger pip can produce commencing signal, and produce stop signal in the moment of receiving feedback signals, like this, high accurate calculagraph 50 can calculate very first time difference and the second mistiming according to commencing signal and stop signal.Wherein, according to a concrete example of the present invention, commencing signal and stop signal all can be pulse signal.
In addition, high accurate calculagraph 50 can also provide the enabling signal of signal processing chip 20, that is, high accurate calculagraph 50 can also send enabling signal to signal processing chip 20, sends trigger pip and commencing signal to make signal processing chip 20 when receiving enabling signal.
As shown in Figure 2, the water quantity monitoring device of heat pump water-heating machine also comprises: human-computer interaction interface 60, and human-computer interaction interface 60 is connected with main control chip 30, and wherein, main control chip 30 controls human-computer interaction interface 60 and shows water consumption in the first Preset Time.
That is, the double piezoelectric ceramic transducer 10 triggered on rising pipe/water inlet pipe 40 by signal processing chip 20 is started, afterwards, double piezoelectric ceramic transducer 10 feeds back signal to signal processing chip 20, signal processing chip 20 can obtain corresponding discharge according to the very first time difference between trigger pip to feedback signal and the second mistiming, the monitoring time of main control chip 30 Bound moisture flow again, just can obtain the water consumption of user in the first Preset Time, this water consumption is transferred to human-computer interaction interface 60 to be shown to user by main control chip 30, thus be convenient to the water consumption that user understands heat pump water-heating machine, promote the experience of user.
Should be understood that, the discharge received can be stored to storer by main control chip 30, like this, compared with only showing total water consumption with the water meter in correlation technique, main control chip 30 can calculate the water consumption in random time section, and the water consumption in random time section is shown to user.
It should be noted that, human-computer interaction interface 60 is for providing unit operation and unit parameter display, inquiry and alarm to user; Main control chip 30 can carry out real-time communication with signal processing chip 20, high accurate calculagraph 50 and human-computer interaction interface 60, send or receive related control information or monitoring information, receive simultaneously and process every measurement parameter of heat pump water-heating machine, and transmit control signal to each load, be the brain of whole heat pump water-heating machine.
According to one embodiment of present invention, human-computer interaction interface 60 is also for receiving the water rate unit price of user's input; Main control chip 30 also for calculating the water rate in the first Preset Time according to the water consumption in water rate unit price and the first Preset Time, and controls human-computer interaction interface 60 and shows water rate in the first Preset Time.
That is, if user is provided with local water rate unit price on human-computer interaction interface 60, main control chip 30 can calculate the water rate in the first Preset Time according to water rate unit price, and the water rate calculated in the first Preset Time, this water rate is transferred to human-computer interaction interface 60 to be shown to user by main control chip 30, thus be convenient to the water rate that user inquires about heat pump water-heating machine cost, promote the experience of user.
Should be understood that, user arranges a time period on human-computer interaction interface 60, and main control chip 30 can calculate the water consumption in this time period, and then obtains corresponding water rate, and the water rate in this time period is shown to user.Thus, human-computer interaction interface 60 can show the water rate in random time section.
In addition, the water quantity monitoring device of the embodiment of the present invention also carries out water route leak detection by following two embodiments.
According to one embodiment of present invention, main control chip 30 is also for calculating the water consumption in the second Preset Time according to the discharge of the second Preset Time, and the water consumption in the second Preset Time is judged, wherein, if the water consumption in the second Preset Time and the difference between benchmark water consumption are greater than predetermined threshold value, main control chip 30 judges that the water route of heat pump water-heating machine is leaked.
It should be noted that, can using the water consumption of user in section sometime as benchmark water consumption, wherein, the time span of this time period is equal with the second Preset Time.Preferably, this time period can be first month that heat pump water-heating machine brings into use (or user arrange voluntarily time period), and the second Preset Time can be one month.Or benchmark water consumption also directly can be inputted by human-computer interaction interface 60 by user.
Like this, main control chip 30 can calculate the water consumption of first month user, every month afterwards, main control chip 30 all can calculate of that month water consumption according to the discharge in this month, if the difference between the water consumption in this month and benchmark water consumption is greater than predetermined threshold value, namely of that month water consumption exceedes benchmark water consumption predeterminable level, and main control chip 30 judges that the water route of heat pump water-heating machine is leaked.
According to a concrete example of the present invention, predetermined threshold value can equal benchmark water consumption, and namely of that month water consumption exceedes benchmark water consumption 100%.
Simultaneously, according to another embodiment of the invention, main control chip 30 is also for judging whether the discharge in water pipe/water inlet pipe continues to be greater than zero in the 3rd Preset Time, and the discharge in rising pipe/water inlet pipe 40 when continuing to be greater than zero in the 3rd Preset Time, main control chip 30 judges that the water route of heat pump water-heating machine is leaked.
That is, main control chip 30 can discharge in Real-time Obtaining rising pipe/water inlet pipe 40, when main control chip 30 was the 3rd Preset Time (such as 24 hours, user can be arranged voluntarily) in continue to detect when having discharge to produce in rising pipe/water inlet pipe 40, judge that the water route of heat pump water-heating machine is leaked.
Thus, the embodiment of the present invention can also the multi-faceted water leakage fault effectively judging heat pump water-heating machine, compared with only finding obvious leakage with the heat pump water-heating machine of correlation technique, the embodiment of the present invention also effectively can judge water leakage fault when micro-leakage, avoid revealing the water resource waste caused for a long time, avoid the waste of hot water heating resource simultaneously, considerably increase quality and the market competitiveness of heat pump water-heating machine.
Further, main control chip 30, after judging that the water route of heat pump water-heating machine is leaked, also controls human-computer interaction interface 60 and points out to user.
That is, the type of alarms such as after judging that the water route of heat pump water-heating machine is leaked, human-computer interaction interface 60 will glimmer with alert icon, buzzer call are pointed out to user, to point out user water route to leak, need user to check water route.
In addition, according to one embodiment of present invention, signal processing chip 20, high accurate calculagraph 50, storer are together with main control chip 30 accessible site.
In sum, according to the water quantity monitoring device of the heat pump water-heating machine that the embodiment of the present invention proposes, in the both sides of the rising pipe/water inlet pipe of heat pump water-heating machine, the first piezoelectric ceramics and the second piezoelectric ceramics are set respectively, and send trigger pip to trigger a piezoelectric ceramics startup by signal processing chip to a piezoelectric ceramics in the first piezoelectric ceramics and the second piezoelectric ceramics, and receive the feedback signal of another piezoelectric ceramics transmission in the first piezoelectric ceramics and the second piezoelectric ceramics, obtain the mistiming between feedback signal and trigger pip, then, trigger pip is being sent to trigger the startup of another piezoelectric ceramics to another piezoelectric ceramics, and receive the feedback signal of a piezoelectric ceramics transmission, and the second mistiming obtained between feedback signal and trigger pip, and the discharge calculated according to very first time difference and the second mistiming in water pipe/water inlet pipe, main control chip calculates the water consumption in the first Preset Time according to the discharge in the first Preset Time.Like this, by double piezoelectric ceramic transducer monitoring discharge, double piezoelectric ceramic transducer does not need to contact with water, adds the serviceable life of water quantity monitoring device, and improves accuracy of measurement.In addition, the installation of this water quantity monitoring device is simple and convenient, installing space is little, is directly installed on the rising pipe/water inlet pipe of unit, does not affect final assembly.And, this water quantity monitoring device can also show the water yield and the water rate information of random time section, and the water leakage fault of multi-faceted effective judgement heat pump water-heating machine, avoid revealing the water resource waste caused for a long time, avoid the waste of hot water heating resource simultaneously, considerably increase quality and the market competitiveness of heat pump water-heating machine.
Finally, the embodiment of the present invention also proposed a kind of heat pump water-heating machine, comprises the water quantity monitoring device of the heat pump water-heating machine of above-described embodiment.
According to the heat pump water-heating machine that the embodiment of the present invention proposes, discharge can be monitored more accurately by above-mentioned water quantity monitoring device, and double piezoelectric ceramic transducer does not need to contact with water, add the serviceable life of water quantity monitoring device, and the installation of this water quantity monitoring device is simple and convenient, installing space is little, do not affect final assembly, can be directly installed on the rising pipe/water inlet pipe of unit.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this instructions or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (9)
1. a water quantity monitoring device for heat pump water-heating machine, is characterized in that, comprising:
Double piezoelectric ceramic transducer, described double piezoelectric ceramic transducer comprises the first piezoelectric ceramics and the second piezoelectric ceramics, and described first piezoelectric ceramics and the second piezoelectric ceramics are separately positioned on the both sides of the rising pipe/water inlet pipe of described heat pump water-heating machine;
Signal processing chip, described signal processing chip is connected with described second piezoelectric ceramics with described first piezoelectric ceramics respectively, described signal processing chip is used for first sending trigger pip to a piezoelectric ceramics in described first piezoelectric ceramics and described second piezoelectric ceramics and starts to trigger a described piezoelectric ceramics, and receive the feedback signal of another piezoelectric ceramics transmission in described first piezoelectric ceramics and described second piezoelectric ceramics, and the very first time obtained between described feedback signal and described trigger pip is poor, send trigger pip to another piezoelectric ceramics described again to start to trigger another piezoelectric ceramics described, and receive the feedback signal of described piezoelectric ceramics transmission, and the second mistiming obtained between described feedback signal and described trigger pip, the discharge in described rising pipe/water inlet pipe is calculated afterwards according to described very first time difference and described second mistiming, and
Main control chip, described main control chip is connected with described signal processing chip, and described main control chip is used for the water consumption calculated according to the discharge in the first Preset Time in described first Preset Time.
2. the water quantity monitoring device of heat pump water-heating machine according to claim 1, is characterized in that, also comprise:
High accurate calculagraph, described high accurate calculagraph is connected with described signal processing chip, described high accurate calculagraph starts timing when described signal processing chip sends described trigger pip and stops timing when described signal processing chip receives described feedback signal, differ from and described second mistiming with the described very first time of recording between described feedback signal and described trigger pip, and described very first time difference and described second mistiming are sent to described signal processing chip.
3. the water quantity monitoring device of heat pump water-heating machine according to claim 1, is characterized in that, also comprise:
Human-computer interaction interface, described human-computer interaction interface is connected with described main control chip, and wherein, described main control chip controls the water consumption in described first Preset Time of described human-computer interaction interface display.
4. the water quantity monitoring device of heat pump water-heating machine according to claim 3, is characterized in that,
Described human-computer interaction interface is also for receiving the water rate unit price of user's input;
Described main control chip also for calculating the water rate in described first Preset Time according to the water consumption in described water rate unit price and described first Preset Time, and controls the water rate in described first Preset Time of described human-computer interaction interface display.
5. the water quantity monitoring device of heat pump water-heating machine according to claim 3, is characterized in that,
Described main control chip is also for calculating the water consumption in described second Preset Time according to the discharge of the second Preset Time, and the water consumption in described second Preset Time is judged, wherein, if the water consumption in described second Preset Time and the difference between benchmark water consumption are greater than predetermined threshold value, described main control chip then judges that the water route of described heat pump water-heating machine is leaked.
6. the water quantity monitoring device of heat pump water-heating machine according to claim 3, is characterized in that,
Described main control chip is also for judging whether the discharge in described rising pipe/water inlet pipe continues to be greater than zero in the 3rd Preset Time, and the discharge in described rising pipe/water inlet pipe when continuing to be greater than zero in described 3rd Preset Time, described main control chip judges that the water route of described heat pump water-heating machine is leaked.
7. the water quantity monitoring device of the heat pump water-heating machine according to claim 5 or 6, is characterized in that, described main control chip, after judging that the water route of described heat pump water-heating machine is leaked, also controls described human-computer interaction interface and points out to user.
8. the water quantity monitoring device of heat pump water-heating machine according to claim 1, is characterized in that, wherein, described first piezoelectric ceramics and described second piezoelectric ceramics be horizontally set on described rising pipe/water inlet pipe just to both sides.
9. a heat pump water-heating machine, is characterized in that, comprises the water quantity monitoring device of the heat pump water-heating machine according to any one of claim 1-8.
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