CN115479021A - Control method for water purifier and water purifier - Google Patents
Control method for water purifier and water purifierDownload PDFInfo
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- CN115479021A CN115479021ACN202210868198.XACN202210868198ACN115479021ACN 115479021 ACN115479021 ACN 115479021ACN 202210868198 ACN202210868198 ACN 202210868198ACN 115479021 ACN115479021 ACN 115479021A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明涉及净水设备技术领域，具体提供一种用于净水机的控制方法及净水机。The invention relates to the technical field of water purification equipment, and specifically provides a control method for a water purifier and the water purifier.
背景技术Background technique
即热净水机因加热体、水泵、温度传感器和管路个体物料间的差异不同，导致每台机器水流量存在偏差，影响软件程序的准确性，故而机器生产下线要求进行流量校准。Due to the differences in the heating body, water pump, temperature sensor and individual materials in the pipeline of the instant hot water purifier, there is a deviation in the water flow of each machine, which affects the accuracy of the software program. Therefore, flow calibration is required when the machine is off-line.
目前即热式净水机流量校准均为通过机器生产下线时，通过每台机器固定档位的水量进行校准机器。但是，机器出厂前对水量进行校准后，在后续使用过程中，由于个体物料存在动态变化，无法实时反馈，故而导致有可能后续使用过程中的流量偏差较大的问题。At present, the flow calibration of instant water purifiers is done through the water volume of each machine at a fixed level when the machine is off the production line. However, after the water volume is calibrated before the machine leaves the factory, in the subsequent use process, due to the dynamic changes of individual materials, real-time feedback cannot be given, which may lead to the problem of large flow deviation in the subsequent use process.
因此，本领域需要一种新的技术方案来解决上述问题。Therefore, a new technical solution is needed in the art to solve the above problems.
发明内容Contents of the invention
本发明旨在解决上述技术问题，即，解决现有的即热式净水机在后续使用过程中存在流量偏差较大的问题。The present invention aims to solve the above-mentioned technical problem, that is, to solve the problem of large flow deviation in the subsequent use of the existing instant water purifier.
在第一方面，本发明提供了一种用于净水机的控制方法，该控制方法包括：获取所述净水机的实际流量Q；获取所述净水机的目标流量Q0；根据所述实际流量Q和所述目标流量Q0，选择性地调节所述净水机的水泵以使所述实际流量Q达到所述目标流量Q0。In the first aspect, the present invention provides a control method for a water purifier, the control method comprising: obtaining the actual flow Q of the water purifier; obtaining the target flow Q0 of the water purifier; according to the The actual flow Q and the target flow Q0 , and selectively adjust the water pump of the water purifier so that the actual flow Q reaches the target flow Q0 .
在上述控制方法的优选技术方案中，“根据所述实际流量Q和所述目标流量Q0，选择性地调节所述净水机的水泵”的具体步骤包括：计算差值△＝Q-Q0；将所述差值△分别与第一预设值A1和第二预设值A2进行比较；根据比较结果，选择性地调节所述水泵；其中，A1＜0，A2＞0。In the preferred technical solution of the above control method, the specific steps of "selectively adjusting the water pump of the water purifier according to the actual flow Q and the target flow Q0 " include: calculating the difference Δ=QQ0 ; The difference Δ is compared with the first preset value A1 and the second preset value A2 respectively; according to the comparison result, the water pump is selectively adjusted; wherein, A1<0, A2>0.
在上述控制方法的优选技术方案中，“根据比较结果，选择性地调节所述水泵”的具体步骤包括：如果△＞A2或△＜A1，则调节所述水泵以使所述实际流量达到所述目标流量。In the preferred technical solution of the above control method, the specific step of "selectively adjusting the water pump according to the comparison result" includes: if △>A2 or △<A1, then adjust the water pump so that the actual flow rate reaches the specified the target traffic.
在上述控制方法的优选技术方案中，“获取所述净水机的实际流量Q”的步骤具体包括：获取所述净水机的加热装置的加热功率；获取所述加热装置的进水端的进水水温；获取所述加热装置的出水端的出水水温；根据所述加热功率、所述进水水温以及所述出水水温计算所述实际流量Q。In the preferred technical solution of the above control method, the step of "obtaining the actual flow Q of the water purifier" specifically includes: acquiring the heating power of the heating device of the water purifier; Water temperature; obtaining the outlet water temperature of the water outlet end of the heating device; calculating the actual flow Q according to the heating power, the inlet water temperature and the outlet water temperature.
在上述控制方法的优选技术方案中，“根据所述加热功率、所述进水水温以及所述出水水温计算所述实际流量Q”的具体步骤包括：Q＝6×1010×P÷(c×ρ×(T2-T1))；其中，P为所述加热装置的加热功率(单位为kw)，c为水的比热容(单位为J/(kg·℃))，ρ为水的密度(kg/m3)，T2为所述出水水温(℃)，T1为所述进水水温(℃)。In the preferred technical solution of the above control method, the specific steps of "calculating the actual flow Q according to the heating power, the inlet water temperature and the outlet water temperature" include: Q=6×1010 ×P÷(c ×ρ×(T2-T1)); Wherein, P is the heating power (unit is kw) of described heating device, c is the specific heat capacity of water (unit is J/(kg ° C)), and ρ is the density of water ( kg/m3), T2 is the outlet water temperature (°C), and T1 is the inlet water temperature (°C).
在上述控制方法的优选技术方案中，“调节所述水泵以使所述实际流量达到所述目标流量”的步骤具体包括：调节所述水泵的占空比以使所述实际流量达到所述目标流量。In the preferred technical solution of the above control method, the step of "adjusting the water pump so that the actual flow reaches the target flow" specifically includes: adjusting the duty cycle of the water pump to make the actual flow reach the target flow.
在上述控制方法的优选技术方案中，“根据比较结果，选择性地调节所述水泵”的具体步骤还包括：如果A1≤△≤A2，则不调节所述水泵。In the preferred technical solution of the above control method, the specific step of "selectively adjusting the water pump according to the comparison result" further includes: not adjusting the water pump if A1≤Δ≤A2.
在上述控制方法的优选技术方案中，在执行步骤“获取所述净水机的加热装置的加热功率”之前，所述控制方法还包括：判断所述加热装置是否达到稳定状态；如果判断结果为“是”，则执行步骤“获取所述加热装置的加热功率。In the preferred technical solution of the above control method, before performing the step "obtaining the heating power of the heating device of the water purifier", the control method further includes: judging whether the heating device has reached a steady state; if the judgment result is "Yes", then perform the step of "obtaining the heating power of the heating device.
在上述控制方法的优选技术方案中，“获取所述净水机的加热装置的加热功率”的步骤具体包括：获取所述加热装置的多个加热功率并计算多个所述加热功率的平均值。In the preferred technical solution of the above control method, the step of "obtaining the heating power of the heating device of the water purifier" specifically includes: obtaining multiple heating powers of the heating device and calculating the average value of multiple heating powers .
在第二方面，本发明提供了一种净水机，本发明的净水机包括控制器，所述控制器配置成能够执行上述的控制方法。In a second aspect, the present invention provides a water purifier. The water purifier of the present invention includes a controller configured to be able to execute the above-mentioned control method.
在采用上述技术方案的情况下，本发明使得净水机能够在实际流量与目标流量偏差较大时及时地通过调节净水机的水泵来调节净水机的实际流量，从而使实际流量达到目标流量，防止净水机的实际流量与目标流量之间的出现较大的偏差而影响用户的正常使用；另一方面，能够在实际流量与目标流量偏差较小时不对净水机的水泵进行调节，从而减少净水机的流量调节频率，提升用户的使用体验。In the case of adopting the above technical solution, the present invention enables the water purifier to adjust the actual flow of the water purifier in time by adjusting the water pump of the water purifier when the actual flow deviates greatly from the target flow, so that the actual flow reaches the target Flow rate, to prevent the large deviation between the actual flow rate and the target flow rate of the water purifier and affect the normal use of the user; on the other hand, when the deviation between the actual flow rate and the target flow rate is small, the water pump of the water purifier can not be adjusted. Thereby reducing the flow adjustment frequency of the water purifier and improving the user experience.
进一步地，通过先计算实际流量Q与目标流量Q0的差值，再根据该差值△与第一预设值A1和第二预设值A2的比较结果选择性地调节净水机的水泵，与直接将实际流量Q与目标流量Q0进行比较，根据比较结果，选择性地调节净水机的水泵131的情形相比，能够避免因实际流量的检测或计算误差而造成的误判，从而提高对净水机的实际流量与目标流量之间的偏差的准确性判断。Further, by first calculating the difference between the actual flow Q and the target flowQ0 , and then selectively adjusting the water pump of the water purifier according to the comparison result of the difference △ with the first preset value A1 and the second preset value A2 Compared with directly comparing the actual flow Q with the target flowQ0 , and selectively adjusting the
又进一步地，通过当△＞A2或△＜A1时，调节水泵以使实际流量达到目标流量，能够在净水机的流量偏大或者偏小时及时地通过调节水泵来调节净水机出水量以使净水机的实际流量达到目标流量，从而实现对净水机的流量的校准，防止因净水机的流量偏差过大而影响用户的正常使用。Further, by adjusting the water pump when △>A2 or △<A1, so that the actual flow reaches the target flow, the water output of the water purifier can be adjusted in time by adjusting the water pump when the flow of the water purifier is too large or too small. Make the actual flow of the water purifier reach the target flow, so as to realize the calibration of the flow of the water purifier, and prevent the normal use of the user from being affected by the excessive flow deviation of the water purifier.
又进一步地，根据加热装置的加热功率、加热装置的进水水温和出水水温来计算实际流量的方式，与在净水机的出水口处设置流量计，通过流量计的数据来获取净水机的实际流量的方式相比，能够避免流量计的使用，从而大大降低了净水机的生产成本，同时，也能够降低净水机的自重。Furthermore, the method of calculating the actual flow rate according to the heating power of the heating device, the inlet water temperature and the outlet water temperature of the heating device is the same as setting a flow meter at the water outlet of the water purifier, and obtaining the flow rate of the water purifier through the data of the flow meter. Compared with the actual flow rate method, the use of flow meters can be avoided, thereby greatly reducing the production cost of the water purifier, and at the same time, it can also reduce the weight of the water purifier.
又进一步地，通过调节水泵的占空比以使净水机的实际流量达到目标流量，与直接调节水泵的转速相比，能够更精准地调节水泵的出水量，从而使净水机的实际流量与目标流量之间的偏差更小。Furthermore, by adjusting the duty ratio of the water pump to make the actual flow of the water purifier reach the target flow, compared with directly adjusting the speed of the water pump, the water output of the water pump can be adjusted more accurately, so that the actual flow of the water purifier Less deviation from target flow.
又进一步地，在A1≤△≤A2的情形下，不调节水泵，能够使得在净水机的实际流量与目标流量之间的偏差不大时，不对净水机的流量进行调节，从而降低净水机的流量调节频率，提高用户的使用体验。Furthermore, in the case of A1≤△≤A2, the water pump is not adjusted, so that when the deviation between the actual flow of the water purifier and the target flow is not large, the flow of the water purifier is not adjusted, thereby reducing the net The flow rate of the water machine is adjusted to improve the user experience.
此外，本发明在上述技术方案的基础上进一步提供的净水机，由于采用了上述介绍的控制方法，进而具备了上述控制方法所具备的有益效果，相比于改进前的净水机，本发明的净水机能够在实际流量与目标流量偏差较大时及时地对净水机的水泵进行调节，以使净水机的实际流量达到目标流量，从而使得净水机的流量更准确，用户的使用体验感更佳。In addition, the water purifier further provided by the present invention on the basis of the above-mentioned technical solution adopts the control method introduced above, and further possesses the beneficial effects of the above-mentioned control method. Compared with the water purifier before improvement, this The invented water purifier can timely adjust the water pump of the water purifier when the deviation between the actual flow and the target flow is large, so that the actual flow of the water purifier reaches the target flow, so that the flow of the water purifier is more accurate, and the user The user experience is better.
附图说明Description of drawings
下面结合附图来描述本发明的优选实施方式，附图中：Describe preferred embodiment of the present invention below in conjunction with accompanying drawing, in the accompanying drawing:
图1是本发明的净水机的结构示意图；Fig. 1 is the structural representation of water purifier of the present invention;
图2是本发明的控制方法的流程图；Fig. 2 is the flowchart of control method of the present invention;
图3是本发明的控制方法的实施例的流程图；Fig. 3 is the flowchart of the embodiment of control method of the present invention;
图4是本发明的净水机的水泵的电压占空比和出水量的拟合曲线图。Fig. 4 is a fitting curve diagram of the voltage duty ratio and water output of the water pump of the water purifier of the present invention.
附图标记列表：List of reference signs:
1、壳体；11、进水口；12、出水口；13、进水管；131、水泵；14、出水管；15、加热腔；151、进水端；1511、第一温度检测构件；152、出水端；1521、第二温度检测构件；153、加热构件。1. Shell; 11. Water inlet; 12. Water outlet; 13. Water inlet pipe; 131. Water pump; 14. Water outlet pipe; 15. Heating cavity; 151. Water inlet end; 1511. First temperature detection member; 152. Water outlet; 1521, second temperature detection component; 153, heating component.
具体实施方式detailed description
下面参照附图来描述本发明的优选实施方式。本领域技术人员应当理解的是，这些实施方式仅仅用于解释本发明的技术原理，并非旨在限制本发明的保护范围。Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.
需要说明的是，在本发明的描述中，术语“内”是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。It should be noted that, in the description of the present invention, the term "inner" is based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation , constructed and operated in a particular orientation and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.
此外，还需要说明的是，在本发明的描述中，除非另有明确的规定和限定，术语“设置”、“连接”应作广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体连接。对于本领域技术人员而言，可根据具体情况理解上述术语在本发明中的具体含义。In addition, it should be noted that, in the description of the present invention, unless otherwise specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or one-piece connection. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
请参阅图1，图1是本发明的净水机的结构示意图。Please refer to FIG. 1 , which is a schematic structural view of the water purifier of the present invention.
如图1所示，本发明的净水机包括壳体1、设置于壳体1内的水泵131以及与水泵131连通的加热装置。As shown in FIG. 1 , the water purifier of the present invention includes a
示例性地，加热装置包括加热腔15以及设置于加热腔15内的加热构件153，加热构件153能够对流入加热腔15内的水进行加热。Exemplarily, the heating device includes a
如图1所示，本发明的净水机还包括进水管13和出水管14，进水管13的一端与壳体1的进水口11连通，进水管13的另一端与加热腔15的进水端151连通，水泵131设置于进水管13上，以便通过水泵131将从进水口11流入到净水机内的水输送到加热腔15内，出水管14的一端与加热腔15的出水端152连通，出水管14的另一端与壳体1的出水口12连通，以便将经加热构件153加热之后的热水从出水口12排出以供用户饮用。As shown in Figure 1, the water purifier of the present invention also includes a
需要说明的是，在实际应用中，并不限于将水泵131设置在进水管13上，例如，还可以将水泵131设置在出水管14上，等等，这种灵活地调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。当然优选地，将水泵131设置在进水管13上。It should be noted that, in practical application, the
还需要说明的是，在实际应用中，本领域技术人员可以将加热构件153设置成电阻式加热构件，或者，也可以将加热构件153设置成厚膜加热式加热构件，等等，这种对加热构件153的具体类型的调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。It should also be noted that in practical applications, those skilled in the art can set the
优选地，将加热构件153设置成厚膜加热式加热构件。Preferably, the
接着参阅图2，图2是本发明的控制方法的流程图。Referring next to FIG. 2 , FIG. 2 is a flow chart of the control method of the present invention.
如图2所示，本发明的控制方法包括以下步骤：As shown in Figure 2, the control method of the present invention comprises the following steps:
S1000：获取净水机的实际流量Q；S1000: Obtain the actual flow Q of the water purifier;
S2000：获取净水机的目标流量Q0；S2000: Obtain the target flow Q0 of the water purifier;
S3000：根据实际流量Q和所述目标流量Q0，选择性地调节净水机的水泵131以使实际流量Q达到目标流量Q0。S3000: According to the actual flow Q and the target flow Q0 , selectively adjust the
通过这样的设置，一方面，能够在实际流量与目标流量偏差较大时及时地通过调节净水机的水泵131来调节净水机的实际流量，从而使实际流量达到目标流量，防止净水机的实际流量与目标流量之间的出现较大的偏差而影响用户的正常使用；另一方面，能够在实际流量与目标流量偏差较小时不对净水机的水泵131进行调节，从而减少净水机的流量调节频率，提升用户的使用体验。Through such a setting, on the one hand, when the actual flow deviates greatly from the target flow, the actual flow of the water purifier can be adjusted in time by adjusting the
需要说明的是，在实际应用中，本领域技术人员可以在净水机的出水口12设置流量计，通过流量计的数值来获取净水机的实际流量，或者，也可以根据加热装置的加热构件153的加热功率、加热装置的进水端151的进水水温、加热装置的出水端152的出水水温来计算实际流量，等等，这种对净水机的实际流量的具体获取方式的调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。It should be noted that, in practical applications, those skilled in the art can set a flow meter at the
优选地，“获取净水机的实际流量Q”的步骤具体包括：Preferably, the step of "obtaining the actual flow Q of the water purifier" specifically includes:
获取净水机的加热装置的加热构件153的加热功率；Obtain the heating power of the
获取加热装置的进水端151的进水水温；Obtain the water inlet water temperature of the
获取加热装置的出水端152的出水水温；Obtain the outlet water temperature of the
根据加热功率、进水水温以及出水水温计算实际流量Q。Calculate the actual flow Q according to the heating power, water inlet temperature and outlet water temperature.
通过这样的设置，与在净水机的出水口12处设置流量计，通过流量计的数据来获取净水机的实际流量的方式相比，根据加热构件153的加热功率、加热装置的进水水温和出水水温来计算实际流量的方式能够避免流量计的使用，从而大大降低了净水机的生产成本，同时，也能够降低净水机的自重。Through such setting, compared with the method of setting a flow meter at the
需要说明的是，在实际应用中，本领域技术人员可以在加热腔15的进水端151和出水端152分别设置温度检测构件，通过温度检测构件的检测数据来获取加热装置的进水水温和出水水温，或者，也可以在进水管13和出水管14上分别设置温度检测构件，通过温度检测构件的检测数据来获取加热装置的进水水温和出水水温，等等，这种灵活地调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。It should be noted that in practical applications, those skilled in the art can respectively install temperature detection components at the
优选地，如图1所述，在加热腔15的进水端151设置第一温度检测构件1511，在加热腔15的出水端152设置第二温度检测构件1521。Preferably, as shown in FIG. 1 , a first
需要说明的是，在实际应用中，本领域技术人员可以将第一温度检测构件1511和第二温度检测构件1521均设置成温度传感器，或者，也可以将第一温度检测构件1511和第二温度检测构件1521均设置成温度计，或者，还可以将第一温度检测构件1511和第二温度检测构件1521中的一个设置成温度传感器，将第一温度检测构件1511和第二温度检测构件1521中的另一个设置成温度计，等等，这种灵活地调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。It should be noted that in practical applications, those skilled in the art can set both the first
优选地，将第一温度检测构件1511和第二温度检测构件1521均设置成温度传感器。Preferably, both the first
需要说明的是，在实际应用中，本领域技术人员可以通过功率检测构件测定加热装置的加热构件153的加热功率来获取加热构件153的加热功率，或者，也可以将加热构件153设置成具有恒定功率的形式，即通过在净水机出厂前对加热构件153的功率进行校准之后，加热构件153的功率不会发生变化，该校准之后的加热构件153的加热功率即为该净水机的加热构件153的加热功率，等等，这种对加热构件153的加热功率的具体获取方式的调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。It should be noted that, in practical applications, those skilled in the art can obtain the heating power of the
优选地，在净水机内设置功率检测构件(图中未示出)，功率检测构件与加热装置的加热构件153电连接，以便测定加热构件153的加热功率。Preferably, a power detection component (not shown in the figure) is provided in the water purifier, and the power detection component is electrically connected to the
优选地，在执行步骤“获取净水机的加热装置的加热构件153的加热功率”之前，本发明的控制方法还包括以下步骤：Preferably, before performing the step "obtaining the heating power of the
判断加热装置的加热构件153是否达到稳定状态；Judging whether the
如果判断结果为“是”，则执行步骤“获取加热装置的加热构件153的加热功率。If the judgment result is "yes", then perform the step of "obtaining the heating power of the
需要说明的是，在实际应用中，本领域技术人员可以根据加热构件153的运行时间是否达到预设运行时间来判断加热构件153是否达到稳定状态，或者，也可以间隔设定时间获取加热构件153的多个加热功率，将获取的多个加热功率进行比较，根据比较结果判断加热构件153是否达到稳定状态，等等，这种对加热构件153的运行状态是否达到稳定状态的具体判断方式的调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。It should be noted that, in practical applications, those skilled in the art can judge whether the
优选地，判断加热装置的加热构件153是否达到稳定状态的具体步骤包括：Preferably, the specific steps of judging whether the
间隔设定时间获取一次加热构件153的加热功率Pi；Obtain the heating power Pi of the
获取加热功率的最大值Pimax；Obtain the maximum value Pimax of the heating power;
获取加热功率的最小值Pimin；Obtain the minimum value Pimin of the heating power;
计算第二差值△2＝|Pimax-Pimin|；Calculate the second difference △2=|Pimax -Pimin |;
将第二差值△2与第三预设值A3进行比较；Comparing the second difference Δ2 with the third preset value A3;
如果△2＜A3，则说明加热装置153达到稳定状态；If Δ2<A3, it means that the
其中A3＞0。where A3>0.
通过这样的设置，与根据加热构件153的运行时间是否达到预设运行时间来判断加热构件153是否达到稳定状态的方式相比，能够更准确地判断加热构件153的运行状态，同时，也能够避免因加热构件153出现故障而造成的误判。With such a setting, compared with the way of judging whether the
需要说明的是，在实际应用中，本领域技术人员可以在加热构件153运行稳定之后，直接获取加热构件153的功率作为加热功率P，或者，也可以在加热构件153运行稳定之后，间隔设定时间获取多个加热构件153的加热功率，再将获取的多个加热功率求平均值作为加热功率P，等等，这种灵活地调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。It should be noted that in practical applications, those skilled in the art can directly obtain the power of the
优选地，“获取净水机的加热装置的加热构件153的加热功率”的步骤具体包括：Preferably, the step of "obtaining the heating power of the
获取加热装置的加热构件153的多个加热功率并计算多个加热功率的平均值。A plurality of heating powers of the
通过这样的设置，与在加热构件153运行稳定之后直接获取加热构件153的加热功率相比，获取加热构件153的多个加热功率并计算多个加热功率的平均值的方式能够避免因加热功率的检测误差而导致获取的加热功率存在较大偏差，从而能够更准确地获取加热构件153的加热功率，进而使得净水机的流量的计算更加准确。With such an arrangement, compared with directly obtaining the heating power of the
需要说明的是，在实际应用中，本领域技术人员可以根据经验或试验来设定A3的具体数值。It should be noted that in practical applications, those skilled in the art can set the specific value of A3 based on experience or experiments.
示例性地，设定A3＝15w，间隔设定时间获取五组功率P的数值，分别为：Exemplarily, set A3=15w, and obtain five sets of power P values at intervals of set time, which are:
P1＝1400w，P2＝1395w，P3＝1405w，P4＝1402w，P5＝1398w；P1=1400w, P2=1395w, P3=1405w, P4=1402w, P5=1398w;
五组数据中的最大值Pimax＝P3＝1405w；The maximum value Pimax in the five sets of data = P3 = 1405w;
五组数据中的最小值Pimin＝P2＝1395w；The minimum value Pimin of the five sets of data = P2 = 1395w;
△2＝|Pimax-Pimin|＝|P3-P2|＝10w；△2＝|Pimax -Pimin |＝|P3-P2|＝10w;
△2＜A3，则说明加热装置的加热构件153达到稳定状态。Δ2<A3, it means that the
加热装置的功率P＝(P1+P2+P3+P4+P5)÷5＝1400w。The power P=(P1+P2+P3+P4+P5)÷5=1400w of the heating device.
示例性地，设定加热装置的加热构件153的运行时间为t小时，获取加热构件153的加热功率为P(kw)，在t小时内从加热腔15内流过的水的总量为V(m3)，加热腔15的进水端151的进水水温为T1(℃)，加热腔15的出水端152的出水水温为T2(℃)；净水机的实际流量为Q(单位为ml/min)。Exemplarily, the operating time of the
则加热构件153在工作t小时后所产生的能量为E1(单位为kw·h)；Then the energy generated by the
E1＝P×t；E1=P×t;
在t时间内，加热腔15内的水从进水水温T1升高至出水水温T2所吸收的热量为E2(单位为J)：During the time t, the heat absorbed by the water in the
E2＝c×ρ×V×(T2-T1)；E2=c×ρ×V×(T2-T1);
其中，c为水的比热容(单位为J/(kg·℃))，ρ为水的密度(单位为kg/m3)；Among them, c is the specific heat capacity of water (in J/(kg·℃)), and ρ is the density of water (in kg/m3 );
在t小时内流经净水机的水的总量V＝Q×t×6×10-5；The total amount of water flowing through the water purifier within t hours V=Q×t×6×10-5 ;
其中，Q的单位为ml/min。Wherein, the unit of Q is ml/min.
根据能量守恒定律，在t小时内，加热构件153所产生的能量与使流经净水机的水从温度T1升高至温度T2所吸收的能量相等；According to the law of energy conservation, within t hours, the energy generated by the
统一单位之后，即：After unifying the units, that is:
P×t×3.6×106＝c×ρ×Q×t×6×10-5×(T2-T1)；P×t×3.6×106 =c×ρ×Q×t×6×10-5 ×(T2-T1);
即得到Q＝6×1010×P÷(c×ρ×(T2-T1))。That is, Q=6×1010 ×P÷(c×ρ×(T2-T1)) is obtained.
优选地，“根据加热功率、进水水温以及出水水温计算实际流量Q”的具体步骤包括：Preferably, the specific steps of "calculating the actual flow Q according to the heating power, the inlet water temperature and the outlet water temperature" include:
Q＝6×1010×P÷(c×ρ×(T2-T1))；Q＝6×1010 ×P÷(c×ρ×(T2-T1));
其中，P为加热装置的加热构件153的加热功率(单位为kw)，c为水的比热容(单位为J/(kg·℃))，ρ为水的密度(kg/m3)，T2为出水水温(℃)，T1为进水水温(℃)。Wherein, P is the heating power of the
需要说明的是，在实际应用中，本领域技术人员可以直接将实际流量Q和目标流量Q0进行比较，根据比较结果，选择性地调节水泵131，或者，也可以先计算实际流量Q和目标流量Q0的差值，再将该差值与第一预设值和第二预设值进行比较，根据比较结果，选择性地调节水泵131，再或者，还可以先计算实际流量Q和目标流量Q0的比值，再将该比值与第一预设值和第二预设值进行比较，根据比较结果，选择性地调节水泵131，等等，这种灵活地调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。It should be noted that in practical applications, those skilled in the art can directly compare the actual flow Q with the target flowQ0 , and selectively adjust the
继续参阅图3，图3是本发明的控制方法的实施例的流程图。Continue to refer to FIG. 3 , which is a flowchart of an embodiment of the control method of the present invention.
优选地，如图3所示，“根据实际流量Q和目标流量Q0，选择性地调节净水机的水泵131”的具体步骤包括：Preferably, as shown in FIG. 3 , the specific steps of "selectively adjusting the
S3100：计算差值△＝Q-Q0；S3100: Calculate the difference △=QQ0 ;
S3200：将差值△分别与第一预设值A1和第二预设值A2进行比较；S3200: Comparing the difference Δ with the first preset value A1 and the second preset value A2 respectively;
S3300：根据比较结果，选择性地调节水泵131；S3300: Selectively adjust the
其中，A1＜0，A2＞0。Wherein, A1<0, A2>0.
通过这样的设置，与直接将实际流量Q与目标流量Q0进行比较，根据比较结果，选择性地调节净水机的水泵131的情形相比，先计算实际流量Q与目标流量Q0的差值，再根据该差值△与第一预设值A1和第二预设值A2的比较结果选择性地调节净水机的水泵131的形式，能够避免因实际流量的检测或计算误差而造成的误判，从而提高对净水机的实际流量与目标流量之间的偏差的准确性判断。Through such a setting, compared with directly comparing the actual flow Q with the target flowQ0 , and selectively adjusting the
优选地，如图3所示，“根据比较结果，选择性地调节水泵131”的具体步骤包括：Preferably, as shown in FIG. 3 , the specific steps of "selectively adjusting the
S3310：如果A1≤△≤A2，则不调节水泵131。S3310: If A1≤Δ≤A2, do not adjust the
通过这样的设置，如果A1≤△≤A2时，说明净水机的实际流量与目标流量之间的偏差不大，此时无需对净水机的流量进行调节，提高用户的使用体验。With such a setting, if A1≤△≤A2, it means that the deviation between the actual flow rate of the water purifier and the target flow rate is not large. At this time, there is no need to adjust the flow rate of the water purifier to improve the user experience.
优选地，如图3所示，“根据比较结果，选择性地调节水泵131”的具体步骤包括：Preferably, as shown in FIG. 3 , the specific steps of "selectively adjusting the
S3320：如果△＞A2或△＜A1，则调节水泵131以使实际流量达到目标流量。S3320: If △>A2 or △<A1, adjust the
通过这样的设置，在△＞A2的情形下，即与目标流量Q0相比，净水机的实际流量偏大且超出一定范围，在△＜A1的情形下，即与目标流量Q0相比，净水机的实际流量偏小且超出一定范围，因此，以上两种情形均说明此时净水机的实际流量与目标流量存在较大的偏差，需要通过调节水泵131来调节净水机的流量，以使实际流量达到目标流量，从而实现对净水机的流量进行校准。Through such setting, in the case of △>A2, that is, compared with the target flow Q0 , the actual flow of the water purifier is too large and exceeds a certain range; in the case of △<A1, that is, compared with the target flow Q0 The actual flow rate of the water purifier is relatively small and exceeds a certain range. Therefore, the above two situations all indicate that there is a large deviation between the actual flow rate of the water purifier and the target flow rate at this time, and the water purifier needs to be adjusted by adjusting the
需要说明的是，在实际应用中，本领域技术人员可以根据经验或试验来设定A1和A2的具体数值。It should be noted that in practical applications, those skilled in the art can set the specific values of A1 and A2 based on experiences or experiments.
还需要说明的是，在实际应用中，本领域技术人员可以通过调节水泵131的转速来调节净水机的出水量，或者，也可以通过调节水泵131的占空比来调节净水机的出水量，等等，这种灵活地调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。It should also be noted that in practical applications, those skilled in the art can adjust the water output of the water purifier by adjusting the rotating speed of the
还需要说明的是，现有的水泵131的电机多采用脉冲宽度调制(pulse widthmodulation，pwm)，即电源在一个特定的频率下以方波脉冲的形式为电机提供电能，不同占空比的方波信号能对电机起到调速作用，脉冲输入信号被平均分配到作用时间上，因此，输入方波的占空比的能够改变加在电机两端的电压大小，从而对电机起到调速的作用，进而能够调节水泵131的出水量，因此，调节水泵131的占空比能够调节水泵131的出水量，从而能够调节净水机的实际流量。It should also be noted that the motor of the existing
优选地，“调节水泵131以使实际流量达到目标流量”的步骤具体包括：Preferably, the step of "adjusting the
调节水泵131的占空比以使实际流量达到目标流量。The duty cycle of the
通过这样的设置，与直接调节水泵131的转速相比，通过调节水泵131的占空比以使净水机的实际流量达到目标流量的形式能够更精准地调节水泵131使净水机的实际流量达到目标流量。Through such setting, compared with directly adjusting the rotational speed of the
需要说明的是，在实际应用中，本领域技术人员可以通过调节水泵131的电机两端电压信号的占空比来调节水泵131的出水量从而调节净水机的流量，以使实际流量达到目标流量，或者，也可以通过调节水泵131的电机的电流信号的占空比来调节水泵131的出水量从而调节净水机的流量，等等，这种灵活地调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。It should be noted that, in practical applications, those skilled in the art can adjust the water output of the
优选地，通过调节水泵131的电机两端的电压的占空比来调节水泵131的出水量从而调节净水机的实际流量，即通过调节水泵131的电压占空比来调节水泵131的出水量从而调节净水机的实际流量。Preferably, the water output of the
接着参阅图4，图4是本发明的净水机的水泵的电机两端的电压的占空比与水泵的出水量的拟合曲线。Referring next to FIG. 4 , FIG. 4 is a fitting curve of the duty cycle of the voltage at both ends of the motor of the water pump of the water purifier of the present invention and the water output of the water pump.
如图4所示，对于每一台净水机的水泵131，在出厂前，先调节水泵131的电机两端的电压的占空比(以下简称为水泵的电压占空比)，得到与每一个电压占空比所对应的水泵131的电机两端的电压和水泵131的出水量，进而得到与每一个电压的占空比与相对应水泵131的出水量的数据，将水泵131的电压占空比与水泵131的出水量进行曲线拟合，得到关于水泵131的电压占空比和出水量之间的关系曲线。As shown in Figure 4, for the
优选地，“通过调节水泵131的电压占空比来调节水泵131的出水量从而调节水泵131的实际流量”的具体步骤包括：Preferably, the specific steps of "adjusting the water output of the
获取水泵131的电压占空比与水泵131的出水量之间的拟合曲线；Obtain a fitting curve between the voltage duty ratio of the
根据水泵131的电压占空比与水泵131的出水量之间的拟合曲线，获取与目标流量相对应的水泵131的电机两端的电压的目标占空比；According to the fitting curve between the duty cycle of the voltage of the
将水泵131的电压占空比调节至目标占空比。The voltage duty cycle of the
示例性地，净水机的目标流量为405ml，净水机的当前的实际流量为493ml，当前的水泵131的电压占空比为220，A1为-20ml，A2为20ml，则△＝Q-Q0＝(493-405)＝88ml，△＞A2，则需要调节水泵131的电压占空比，并且，与目标流量相对应的水泵131的目标占空比为180，则将水泵131的电压占空比调节为180即可将实际流量调节为目标流量。Exemplarily, the target flow rate of the water purifier is 405ml, the current actual flow rate of the water purifier is 493ml, the current duty cycle of the voltage of the
需要说明的是，在实际应用中，本领域技术人员可以将净水机设置成通过用户按动设置在净水机上的按钮自行地对净水机的流量进行校准，或者，也可以将净水机设置成当净水机的运行满足设定条件时，自动地对净水机的流量进行校准，等等，这种灵活地调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。It should be noted that in practical applications, those skilled in the art can set the water purifier to calibrate the flow rate of the water purifier by the user by pressing the button on the water purifier, or the water purifier can also be set to The machine is set to automatically calibrate the flow of the water purifier when the operation of the water purifier meets the set conditions, etc. This flexible adjustment and change does not deviate from the principle and scope of the present invention, and should be included in within the protection scope of the present invention.
优选地，本发明的控制方法还包括：在净水机的运行条件满足设定条件时，自动地对净水机的流量进行校准。Preferably, the control method of the present invention further includes: automatically calibrating the flow rate of the water purifier when the operating conditions of the water purifier meet the set conditions.
需要说明的是，在实际应用中，本领域技术人员可以将净水机设置成自上一次流量校准之后的出水量达到预设出水量时，对净水机的流量进行校准，或者，也可以将净水机设置成自上一次流量校准之后的运行时长达到预设运行时长时，对净水机的流量进行校准，再或者，还可以将净水机设置成每天对流量进行校准，等等，这种灵活地调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。It should be noted that, in practical applications, those skilled in the art can set the water purifier to calibrate the flow of the water purifier when the water output after the last flow calibration reaches the preset water output, or, can also Set the water purifier to calibrate the flow of the water purifier when the running time since the last flow calibration reaches the preset running time, or, you can also set the water purifier to calibrate the flow every day, etc. , such flexible adjustments and changes do not depart from the principle and scope of the present invention, and should be included within the protection scope of the present invention.
优选地，自上一次流量校准之后的运行时长达到预设运行时长时，对净水机的流量进行校准，即，获取净水机的实际流量和目标流量，根据实际流量和目标流量，选择性地调节净水机的水泵131以使实际流量达到目标流量。Preferably, when the running time after the last flow calibration reaches the preset running time, the flow of the water purifier is calibrated, that is, the actual flow and the target flow of the water purifier are obtained, and according to the actual flow and the target flow, selectivity Adjust the
示例性地，2022年5月10日对净水机进行流量校准，设定预设时长为10天，则下一次对净水机进行流量校准的日期为2022年5月20日、2022年5月30日，依次类推，实现定期对净水机的流量进行校准，防止因净水机的实际流量与目标流量之间的偏差较大而影响用户的正常使用。Exemplarily, the flow calibration of the water purifier is performed on May 10, 2022, and the preset duration is set to 10 days, then the next date of flow calibration of the water purifier is May 20, 2022, May 2022 On March 30th, and so on, the flow of the water purifier is calibrated regularly to prevent the normal use of the user from being affected by the large deviation between the actual flow of the water purifier and the target flow.
下面结合几个情形来详细地介绍无需调节净水机的水泵使实际流量达到目标流量的具体实施例。A specific embodiment in which the actual flow reaches the target flow without adjusting the water pump of the water purifier will be introduced in detail below in combination with several situations.
2022年5月10日对净水机进行了流量校准，设定预设时长为10天，即自上一次流量校准之后的运行时长达到10天时，再次对净水机的流量进行校准，设定目标流量Q0为500ml，A1＝-20ml，A2＝20ml。On May 10, 2022, the flow of the water purifier was calibrated, and the preset duration was set to 10 days, that is, when the running time after the last flow calibration reached 10 days, the flow of the water purifier was calibrated again and set The target flow Q0 is 500ml, A1=-20ml, A2=20ml.
情形1：Scenario 1:
如果在2022年5月20日检测到实际流量Q＝510ml，则△＝Q-Q0＝(510-500)ml＝10ml，则A1＜△＜A2，无需调节净水机的水泵131。If the actual flow Q=510ml is detected on May 20, 2022, then △=QQ0 =(510-500)ml=10ml, then A1<△<A2, no need to adjust the
情形2：Scenario 2:
如果在2022年5月20日检测到实际流量Q＝500ml，则△＝Q-Q0＝(500-500)ml＝0ml，则A1＜△＜A2，无需调节净水机的水泵131。If the actual flow Q=500ml is detected on May 20, 2022, then △=QQ0 =(500-500)ml=0ml, then A1<△<A2, no need to adjust the
情形3：Case 3:
如果在2022年5月20日检测到实际流量Q＝520ml，则△＝Q-Q0＝(520-500)ml＝20ml，则△＝A2，无需调节净水机的水泵131。If the actual flow Q=520ml is detected on May 20, 2022, then Δ=QQ0 =(520-500)ml=20ml, then Δ=A2, and there is no need to adjust the
情形4：Scenario 4:
如果在2022年5月20日检测到实际流量Q＝480ml，则△＝Q-Q0＝(480-500)ml＝-20ml，则△＝A1，无需调节净水机的水泵131。If the actual flow Q=480ml is detected on May 20, 2022, then Δ=QQ0 =(480-500)ml=-20ml, then Δ=A1, and there is no need to adjust the
需要说明的是，上述△＝10ml的情形说明实际流量与目标流量相比偏大10ml，上述△＝0ml的情形说明实际流量和目标流量之间无偏差，上述△＝-20ml的情形说明实际流量与目标流量相比偏小20ml。It should be noted that the above situation of △=10ml indicates that the actual flow rate is 10ml larger than the target flow rate, the above situation of △=0ml indicates that there is no deviation between the actual flow rate and the target flow rate, and the above situation of △=-20ml indicates the actual flow rate 20ml less than the target flow.
下面结合以下几个情形详细地介绍调节净水机的水泵以使实际流量达到目标流量的具体实施例。A specific embodiment of adjusting the water pump of the water purifier so that the actual flow reaches the target flow will be described in detail below in combination with the following situations.
2022年5月10日对净水机进行了流量校准，设定预设时长为10天，即自上一次流量校准之后的运行时长达到10天时，再次对净水机的流量进行校准，设定目标流量Q0为405ml，A1＝-20ml，A2＝20ml，根据图4获取与目标流量Q0相对应的目标占空比为180。On May 10, 2022, the flow of the water purifier was calibrated, and the preset duration was set to 10 days, that is, when the running time after the last flow calibration reached 10 days, the flow of the water purifier was calibrated again and set The target flow Q0 is 405ml, A1=-20ml, A2=20ml, and the target duty cycle corresponding to the target flow Q0 is 180 according to FIG. 4 .
情形1：Scenario 1:
如果在2022年5月20日检测到实际流量Q＝493ml，则△＝Q-Q0＝(493-405)ml＝88ml，则△＞A2，则需要调节水泵131的占空比，将水泵131的电压占空比调节至目标占空比180。If the actual flow Q=493ml is detected on May 20, 2022, then △=QQ0 =(493-405)ml=88ml, then △>A2, then the duty cycle of the
情形2：Scenario 2:
如果在2022年5月20日检测到实际流量Q＝368ml，则△＝Q-Q0＝(368-405)ml＝-37ml，则△＜A1，则需要调节水泵131的占空比，将水泵131的电压占空比调节至目标占空比180。If the actual flow Q=368ml is detected on May 20, 2022, then △=QQ0 =(368-405)ml=-37ml, then △<A1, then the duty cycle of the
需要说明的是，上述△＝88ml的情形说明实际流量与目标流量相比偏大88ml，上述△＝-37ml的情形说明实际流量与目标流量相比偏小37ml。It should be noted that the above situation of △=88ml indicates that the actual flow rate is 88ml larger than the target flow rate, and the above situation of △=-37ml indicates that the actual flow rate is 37ml smaller than the target flow rate.
需要说明的是，在实际应用中，净水机设置有多个流量档位，在进行流量校准时，分别对每一个档位的流量进行校准，即，将水泵的占空比调节为与该档位的目标流量相对应的目标占空比。It should be noted that in practical applications, the water purifier is provided with multiple flow gears. When performing flow calibration, the flow of each gear is calibrated separately, that is, the duty ratio of the water pump is adjusted to match the flow rate of the water pump. The target duty cycle corresponding to the target flow of the gear.
需要说明的是，本发明的控制方法并不限于仅适用于用户在后续使用过程中对净水机进行校准的过程，例如，该控制方法同样也适用于在净水机出厂时对流量进行校准的过程，等等，这种灵活地调整和改变并不偏离本发明的原理和范围，均应包含在本发明的保护范围之内。It should be noted that the control method of the present invention is not limited to the process of calibrating the water purifier during subsequent use by the user, for example, the control method is also applicable to calibrating the flow rate of the water purifier when it leaves the factory process, etc., such flexible adjustments and changes do not deviate from the principle and scope of the present invention, and should be included in the protection scope of the present invention.
优选地，本发明的净水机还包括控制器(图中未示出)，控制器配置成能够执行上述介绍的控制方法。Preferably, the water purifier of the present invention further includes a controller (not shown in the figure), and the controller is configured to be able to execute the control method described above.
需要说明的是，在实际应用中，本领域技术人员可以将控制器与第一温度检测构件1511、第二温度检测构件1521通讯连接，以便实现进水温度和出水温度的智能数据采集，还可以将控制器与水泵131通讯连接，以便实现水泵131的智能调节。It should be noted that in practical applications, those skilled in the art can communicate and connect the controller with the first
至此，已经结合附图所示的优选实施方式描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings, but those skilled in the art will easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.
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