WO2020124978A1 - 一种电热水器功率的调节方法及电热水器 - Google Patents
一种电热水器功率的调节方法及电热水器 Download PDFInfo
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- WO2020124978A1 WO2020124978A1 PCT/CN2019/093147 CN2019093147W WO2020124978A1 WO 2020124978 A1 WO2020124978 A1 WO 2020124978A1 CN 2019093147 W CN2019093147 W CN 2019093147W WO 2020124978 A1 WO2020124978 A1 WO 2020124978A1
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- water heater
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000010438 heat treatment Methods 0.000 claims abstract description 50
- 230000007935 neutral effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 8
- 238000013021 overheating Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
Definitions
- This article relates to the technical field of water heaters, for example, to a power adjustment method of an electric water heater and an electric water heater.
- a water heater refers to a device that warms cold water into hot water with a certain degree of heat within a certain period of time. It is widely used as an essential electrical appliance for family life and improves the convenience and comfort of people's daily lives. Water heaters can be divided into electric water heaters, gas water heaters, solar water heaters, etc. according to different heating methods.
- the heating tube of nominal rated power is installed in the inner tank of the electric water heater, after the power cord is inserted into the socket, the 220V voltage of the commercial power enters the heating circuit of the water heater, and through the control circuit rectification, transformation, filtering and Logic control and other driving relays suck and connect the heating tube, and the heating tube is heated by electricity to increase the temperature of the water in the liner.
- the heating tube voltage of the existing electric water heater fluctuates with the mains voltage, and the actual power of the heating tube fluctuates.
- the power of the heating tube of the electric water heater is large, which will cause the power cord.
- Over-loading with the power plug causes problems such as heating and softening of the power cord and overheating of the power plug and fire, which is not conducive to the safety of electric water heaters.
- This paper provides a method for adjusting the power of electric water heaters. It can adjust the power of electric water heaters according to the electric environment of electric water heaters, so that the working power of electric water heaters matches the electric environment and improves the safety of electric water heaters.
- This article also provides an electric water heater, which can match the working power of the electric water heater with the electricity environment and improve the safety of the electric water heater.
- the power adjustment method includes: adjusting the heating power of the electric water heater according to the temperature of at least one of a power cord and a power plug of the electric water heater.
- This paper also proposes an electric water heater that uses the electric water heater power adjustment method as described above.
- FIG. 1 is a flowchart of a power adjustment method for an electric water heater provided in Embodiment 1 of this document;
- FIG. 2 is a flowchart of a power adjustment method for an electric water heater provided in Embodiment 2 herein;
- Embodiment 3 is a flowchart of a power adjustment method for an electric water heater provided in Embodiment 3 herein.
- FIG. 1 is a flowchart of a power adjustment method for an electric water heater provided herein.
- an embodiment of the present invention provides a power adjustment method for adjusting the power of an electric water heater to prevent the electric water heater from overpowering If the current carrying capacity of the user circuit is too small, the safety performance of the water heater is reduced, and the safety performance of the electric water heater is improved.
- the power adjustment method provided in this embodiment mainly adjusts the heating power of the electric water heater according to the temperature of the power plug.
- the power adjustment method may specifically include the following steps:
- Step S1 Start the detection and adjustment procedure.
- the controller in the electric water heater can control the start of the detection and adjustment program.
- Step S2 determine whether the temperature of the power plug is greater than the second preset temperature, and based on the judgment result that the temperature of the power plug is higher than the second preset temperature, perform step S4, based on that the temperature of the power plug is not higher than the second preset temperature Assuming the temperature judgment result, step S3 is executed.
- the size of the power plug temperature and the second preset temperature can be determined.
- the temperature of the power plug can be detected by installing a temperature sensor inside the power plug, and the two leads of the temperature sensor are merged into the power harness.
- the detection of the temperature of the power plug may also be a non-contact detection of the temperature of the power plug through an external infrared thermometer.
- the second preset temperature can be optionally set as the melting point temperature of the plug of the power plug to prevent the power plug from melting due to excessive temperature, which may cause a fire hazard of the power plug.
- the second preset temperature can also be set so that the value of the second preset temperature is lower than the melting point temperature of the insert.
- the second preset temperature range is 110°C to 130°C, and optionally 120°C.
- the second preset temperature can be specifically set according to the specific material of the power plug.
- Step S3 determine whether the temperature of the power plug is greater than the first preset temperature, based on the result of the determination that the temperature of the power plug is not greater than the first preset temperature, execute step S5, based on the result of the determination that the temperature of the power plug is greater than the first preset temperature And go to step S6.
- the first preset temperature is the temperature at which the power plug can maintain normal operation.
- the setting of the first preset temperature can prevent the working temperature of the power plug from continuously exceeding the normal withstand temperature of the power plug and causing damage to the power plug. Safe operation and increase the service life of the power plug.
- the range of the first preset temperature is 70°C to 90°C, and optionally 80°C.
- the setting of the first preset temperature can be specifically set according to the specific material of the power socket.
- Step S4 Disconnect the heating circuit of the electric heater and stop the electric heater from heating until the power plug temperature is lower than the third preset temperature and the time below the third preset temperature exceeds the preset time, then restart heating Circuit and execute step S6.
- the heating circuit When the temperature of the power plug is too high, the heating circuit is powered off and the heating of the heating circuit is stopped, which can prevent the temperature of the power plug from continuously increasing and causing the power plug to melt, resulting in a safety accident.
- the high temperature and overheating of the power plug may be caused by the current power being too large and exceeding the current carrying capacity of the circuit. Therefore, after the temperature of the power plug is reduced, the high temperature overheating phenomenon of the power plug can be avoided by reducing the power level, so that the power The water heater can continue to run and perform normal heating functions.
- Step S5 The electric heater maintains the current power range and executes step S9.
- Step S6 determine whether the current power gear is the lowest gear, based on the judgment result that the current power gear is not the lowest gear, execute step S7, and perform step S8 based on the judgment result that the current power gear is the lowest gear.
- the current power range can be the range where the rated power is, or it can be the adjusted power range.
- Different power levels can be adjusted by the number of heating tubes in the heating circuit.
- Step S7 reduce the power level, the electric water heater works with the reduced power level as the current power level.
- Step S8 The heating circuit is disconnected, and the controller controls the electric water heater to issue an alarm.
- Step S9 The electric water heater displays the current power level.
- the heating power of the electric heater is adjusted by the detected temperature of the power plug, so that when the working current of the electric heater exceeds the load capacity of the user circuit, the temperature rise of the power socket caused by the current overload can be detected. Therefore, the working power of the electric heater is adjusted according to the detected temperature, so that the working power of the electric heater matches the current load capacity of the user, and the problem of safety accidents caused by overload, overheating or electrical fire in the circuit is reduced as much as possible The safety and service life of electric water heaters.
- This embodiment also provides an electric water heater.
- the electric water heater uses the electric water heater power adjustment method as described above.
- the power plug of the electric water heater is provided with a temperature sensor inside, and the two leads of the temperature sensor are merged into the power wire harness of the electric water heater and connected with the control circuit in the electric water heater.
- FIG. 2 is a flowchart of a power adjustment method of an electric water heater provided herein.
- an embodiment of the present invention provides a power adjustment method, which is used to adjust the power of an electric water heater to prevent If the power of the electric water heater is too large and the current-carrying capacity of the user circuit is too small, the safety performance of the water heater is reduced, and the safety performance of the electric water heater is improved.
- the steps in this embodiment are basically the same as the first embodiment, the difference is that the first embodiment adjusts the power of the electric heater by detecting the temperature of the power plug, and This embodiment adjusts the power of the electric heater by detecting the temperature of the power supply line.
- the method for adjusting the power of the electric heater in Embodiment 1 and Embodiment 2 is basically the same, but at the fourth preset temperature and the fifth preset temperature The settings are different.
- the fourth preset temperature and the fifth preset temperature are preset based on the material of the power cord.
- the power cord includes a live wire, a ground wire, and a neutral wire. Because the ground wire is grounded, the temperature rise is affected by the grounding, which is difficult The actual current-carrying condition of the reaction circuit, so it is necessary to detect the temperature of the live wire or the neutral wire to adjust the power of the electric heater.
- the fourth preset temperature may be set to 60°C
- the fifth preset temperature may be set to 66°C.
- the power adjustment method provided in this embodiment may specifically include the following steps: Step S1: Start a detection and adjustment procedure.
- Step S2 Determine whether the temperature of the power cord is greater than the fifth preset temperature, and based on the judgment result of the temperature of the power cord being higher than the fifth preset temperature, perform step S4, based on that the temperature of the power cord is not higher than the fifth preset temperature Assuming the temperature judgment result, step S3 is executed.
- Step S3 determine whether the temperature of the power cord is greater than the fourth preset temperature, based on the result of the determination that the temperature of the power cord is not greater than the fourth preset temperature, execute step S5, based on the result of the determination that the temperature of the power cord is greater than the fourth preset temperature And go to step S6.
- Step S4 Disconnect the heating circuit of the electric heater and stop the electric heater from heating until the power cord temperature is lower than the third preset temperature and the time below the third preset temperature exceeds the preset time, then restart heating Circuit and execute step S6.
- Step S5 The electric heater maintains the current power range and executes step S9.
- Step S6 determine whether the current power gear is the lowest gear, based on the judgment result that the current power gear is not the lowest gear, execute step S7, and perform step S8 based on the judgment result that the current power gear is the lowest gear.
- Step S7 reduce the power level, the electric water heater works with the reduced power level as the current power level.
- Step S8 The heating circuit is disconnected, and the controller controls the electric water heater to issue an alarm.
- Step S9 The electric water heater displays the current power level.
- the heating temperature of the electric heater is adjusted by the detected temperature of the live wire or the neutral wire in the power line, so that the working power of the electric heater matches the current load capacity of the user, and the safety and use of the electric water heater are improved life.
- This embodiment also provides an electric water heater that uses the electric water heater power adjustment method as described above.
- the power plug of the electric water heater is provided with a temperature sensor inside, and the two leads of the temperature sensor are merged into the power wire harness of the electric water heater and connected with the control circuit in the electric water heater.
- FIG. 3 is a flowchart of a power adjustment method for an electric water heater provided herein. As shown in FIG. 3, this embodiment provides a power adjustment method for an electric water heater. Compared with Embodiment 1 and Embodiment 2, this embodiment The provided power adjustment method adopts the synchronous detection of the temperature of the power plug and the power cord, and adjusts the power in combination with the temperature of the power plug and the power cord.
- the power adjustment method provided in this embodiment includes the following steps:
- Step S1 Start the detection and adjustment procedure.
- Step S2 Determine whether the power plug temperature is lower than the second preset temperature and the power cord temperature is lower than the fifth preset temperature, based on the power plug temperature not lower than the second preset temperature or the power cord temperature not lower than the fifth preset temperature Assuming that the temperature is judged, step S4 is executed, and based on the judgment result that the power plug temperature is lower than the second preset temperature and the power cord temperature is lower than the fifth preset temperature, step S3 is executed.
- Step S3 determine whether the temperature of the power plug is lower than the first preset temperature and the temperature of the power cord is lower than the fourth preset temperature, based on that the temperature of the power plug is lower than the first preset temperature and the temperature of the power cord is lower than the fourth preset temperature Set the judgment result of the temperature, execute step S5, and execute step S6 based on the judgment result that the temperature of the power plug is not lower than the first preset temperature or the temperature of the power cord is not lower than the fourth preset temperature.
- Step S4 Disconnect the heating circuit of the electric heater, and stop the electric heater from heating until the temperature of the power plug and the temperature of the power cord are lower than the third preset temperature and the time lower than the third preset temperature exceeds the preset After the time, the heating circuit is restarted, and step S6 is executed.
- Step S5 The electric heater maintains the current power range and executes step S9.
- Step S6 determine whether the current power gear is the lowest gear, based on the judgment result that the current power gear is not the lowest gear, execute step S7, and perform step S8 based on the judgment result that the current power gear is the lowest gear.
- Step S7 reduce the power level, the electric water heater works with the reduced power level as the current power level.
- Step S8 The heating circuit is disconnected, and the controller controls the electric water heater to issue an alarm.
- Step S9 The electric water heater displays the current power level.
- the safety of the power plug and the power cord can be taken into account to reduce the safety caused by overload, overheating or electrical fire in the circuit.
- the probability of an accident improves the safety and service life of an electric water heater.
- This embodiment also provides an electric water heater.
- the electric water heater uses the electric water heater power adjustment method as described above.
- the power plug of the electric water heater is provided with a temperature sensor inside, and the two leads of the temperature sensor are merged into the power wire harness of the electric water heater and connected with the control circuit in the electric water heater.
- the power adjustment method includes: adjusting the heating power of the electric water heater according to the temperature of at least one of a power cord and a power plug of the electric water heater.
- the power adjustment method includes: adjusting the heating power of the electric water heater according to the temperature of the power plug of the electric water heater;
- Adjusting the heating power of the electric water heater according to the temperature of the power plug of the electric water heater includes:
- the power adjustment method before determining whether the temperature of the power plug is higher than the first preset temperature, the power adjustment method further includes:
- Judging whether the temperature of the power plug is higher than the first preset temperature includes:
- the power adjustment method further includes: continuously detecting the temperature of the power plug, when the temperature of the power plug is lower than the third preset At temperature, the heating circuit is closed, and the power level is reduced to update the current power level.
- the power adjustment method includes: adjusting the heating power of the electric water heater according to the temperature of the power cord and the power plug;
- Adjusting the heating power of the electric water heater according to the temperature of the power cord and the power plug includes:
- the current power range determine whether the temperature of the power plug is lower than the first preset temperature and the temperature of the power cord is lower than the fourth preset temperature, based on the temperature of the power plug is not lower than the first preset temperature It is determined that the temperature or the temperature of the power line is not lower than the fourth preset temperature, the power level is reduced, and the current power level is updated.
- the power adjustment method before lowering the power gear, the power adjustment method further includes: determining whether the power gear is the lowest power gear, based on the judgment result of the power gear being the lowest power gear , Control the electric water heater alarm;
- the power gear is lowered, and the current power gear is updated.
- the power adjustment method further includes: using a temperature sensor built in the power plug or an infrared thermometer external to the power plug to detect the temperature of the power plug.
- the power adjustment method further includes: detecting the temperature of the live or neutral line in the power line.
- the power adjustment method further includes: displaying the current power gear.
- This paper also proposes an electric water heater that uses the electric water heater power adjustment method as described above.
- the power adjustment method of the electric water heater provided in this paper adjusts the heating power of the electric heater by detecting the temperature of at least one of the power plug and the power cord, which can overload the current when the working current of the electric heater exceeds the load capacity of the user circuit
- the temperature rise phenomenon of at least one of the power plug and the power cord is detected to adjust the working power of the electric heater according to the detected temperature, so as to match the working power of the electric heater with the current load capacity of the user, as much as possible Reduce the problems of safety accidents caused by overload, overheat or electric fire in the circuit, and improve the safety and service life of electric water heaters.
- the electric water heater provided in this article can adapt the working power of the electric water heater to the user's electricity environment by adopting the above-mentioned power adjustment method, and improve the safety and service life of the electric water heater.
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Abstract
本文公开了一种电热水器的功率调节方法及电热水器，电热水器的功率调节方法包括：根据电热水器的电源线和电源插头中至少之一的温度调节所述电热水器的加热功率。
Description
本公开要求在2018年12月20日提交中国专利局、申请号为201811564169.4的中国专利申请的优先权，以上申请的全部内容通过引用结合在本公开中。
本文涉及热水器技术领域，例如涉及一种电热水器的功率调节方法及电热水器。
热水器指在一定时间范围内，使冷水升温成具有一定热度的热水的设备，其作为家庭生活的必备电器而被广泛应用，提高了人们生活起居的便利性和舒适性。热水器根据加热方式的不同，可分为电热水器、燃气热水器、太阳能热水器等。
现在的电热水器，通过在电热水器的内胆内装有标称额定功率的加热管，电源线插入插座后，市电220V电压进入热水器的加热电路，并通过控制电路的整流、变压、滤波和逻辑控制等驱动继电器吸合连接加热管，对加热管进行通电加热而使内胆内水温升高。
现有电热水器的加热管电压随着市电电压而波动，加热管实际功率呈现波动变化，但如果用户家庭内的电路载流能力过小，电热水器加热管功率较大，就会导致电源线和电源插头超负荷工作，导致电源线发热、变软以及电源插头温度过高而起火等问题，不利于电热水器的使用安全性。
发明内容
本文提供了一种电热水器的功率调节方法，可以针对电热水器的用电环境，调整电热水器的功率，使电热水器的工作功率与用电环境相配，提高电热水器的使用安全性。
本文还提供一种电热水器，可以使电热水器的工作功率与用电环境相匹配，提高电热水器的使用安全性。
本文提供了一种电热水器的功率调节方法，所述功率调节方法包括：根据电热水器的电源线和电源插头中至少之一的温度调节所述电热水器的加热功率。
本文还提出了一种电热水器，所述电热水器应用如上所述的电热水器功率调节方法。
图1为本文实施例一提供的电热水器的功率调节方法的流程图；
图2为本文实施例二提供的电热水器的功率调节方法的流程图；
图3为本文实施例三提供的电热水器的功率调节方法的流程图。
下面结合附图和实施例对本文作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本文，而非对本文的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本文相关的部分而非全部结构。
实施例一
图1为本文提供的电热水器的功率调节方法的流程图，如图1所示，本发明实施例提供了一种功率调节方法，其用于对电热水器的功率进行调节，防止电热水器功率过大而用户电路载流能力过小时，导致的热水器安全性能降低，提高电热水器的安全性能。
本实施例提供的功率调节方法主要根据电源插头的温度调节电热水器的加热功率，如图1所示，该功率调节方法具体可以包括如下步骤：
步骤S1：启动检测和调节程序。
当电热水器的电源插头与插座通电连接后，电热水器中的控制器可控制检测和调节程序的启动。
步骤S2：判断电源插头温度是否大于第二预设温度，基于所述电源插头的温度高于第二预设温度的判断结果，执行步骤S4，基于所述电源插头的温度不高于第二预设温度的判断结果，执行步骤S3。
通过对电源插头的温度进行检测，并与控制器中预设的温度值进行比对，可对电源插头温度与第二预设温度的大小进行判断。
对电源插头温度的检测可以通过在电源插头内部设置温度传感器，将温度 传感器的两根引线并入电源线束中。对电源插头温度的检测还可以是通过外置的红外测温仪对电源插头的温度进行非接触式检测等。
第二预设温度可选设置为电源插头的插片的熔点温度，以防止电源插头因温度过高而融化，造成电源插头起火等危险。第二预设温度还可以通过设置安全系数的方式使第二预设温度的数值低于插片的熔点温度。
在本实施例中，第二预设温度范围为110℃～130℃，且可选为120℃。第二预设温度可以根据电源插头的具体材质进行具体设置。
步骤S3：判断电源插头的温度是否大于第一预设温度，基于电源插头的温度不大于第一预设温度的判断结果，执行步骤S5，基于电源插头的温度大于第一预设温度的判断结果，执行步骤S6。
第一预设温度为电源插头能够保持正常工作的温度，第一预设温度的设置，能够防止电源插头的工作温度持续超出电源插头的正常承受温度而出现电源插头毁坏等问题，保证电源插头的运行安全，提高电源插头的使用寿命。
在本实施例中，第一预设温度的范围为70℃～90℃，且可选为80℃。第一预设温度的设置可以根据电源插座的具体材质进行具体设置。
步骤S4：断开电加热器的加热电路，使电加热器停止加热，直至电源插头温度低于第三预设温度后且低于第三预设温度的时间超过预设时间后，重新启动加热电路，并执行步骤S6。
当电源插头温度过高时，对加热电路进行断电处理，停止加热电路的加热，能防止电源插头温度持续升高导致电源插头融化，造成使用安全事故。
由于电源插头高温过热可能是因为当前功率过大，超出电路载流能力所致，因此，在电源插头温度降低后，可以通过降低功率档位的方式避免电源插头高温过热现象再次出现，以使电热水器能够继续运行，执行正常的加热功能。
步骤S5：电加热器保持当前功率档位工作，并执行步骤S9。
步骤S6：判断当前功率档位是否为最低档位，基于当前功率档位不为最低档位的判断结果，执行步骤S7，基于当前功率档位为最低档位的判断结果，执行步骤S8。
当前功率档位可以为额定功率所在的档位，也可以是经过调整后的功率档 位。
电热水器中可以只设置两个功率档位，也可以设置为多个功率档位。
不同的功率档位可以通过加热电路中的加热管的个数进行调节。
步骤S7：降低功率档位，电热水器以降低后的功率档位作为当前功率档位工作。
步骤S8：断开加热电路，且控制器控制电热水器发出警报。
步骤S9：电热水器显示当前功率档位。
本实施例中，通过电源插头的检测温度调整电加热器的加热功率，能够使当电加热器的工作电流超过用户电路负载能力时，对电流过载引发的电源插座的温度升高现象进行检测，从而根据检测温度调整电加热器的工作功率，从而使电加热器的工作功率与用户电流负载能力相匹配，尽可能地减小电路中发生过载、过热或电起火等引发安全事故的问题，提高电热水器的使用安全性和使用寿命。
本实施例还提供了一种电热水器，所述电热水器应用如上所述的电热水器功率调节方法。电热水器的电源插头内部设置有温度传感器，温度传感器的两个引线并入电热水器的电源线束中，并与电热水器中的控制电路连接。
实施例二
图2为本文提供的电热水器的功率调节方法的流程图，如图2所示，本发明实施例提供了一种功率调节方法，所述功率调节方法用于对电热水器的功率进行调节，防止电热水器功率过大而用户电路载流能力过小时，导致的热水器安全性能降低，提高电热水器的安全性能。
如图2所示，与实施例一相比，本实施例中各步骤与实施例一基本相同，不同之处在于，实施例一是通过对电源插头温度的检测调节电加热器的功率，而本实施例是通过对电源线温度的检测调节电加热器的功率，实施例一和实施例二对电加热器功率调节的方法基本相同，但在第四预设温度和第五预设温度的设置上不同。
在本实施例中，第四预设温度和第五预设温度基于电源线的材质进行预设，电源线包括火线、地线和零线，由于地线接地，温度升高受接地影响，难以反 应电路真实载流情况，因此需要对火线或零线的温度进行检测以对电加热器的功率进行调节。
以对火线的检测为例，火线在60℃以内可以保持长时间的稳定工作，在超过66℃之后可能引发安全事故。因此，可以将第四预设温度设置为60℃，将第五预设温度设置为66℃。
由于本实施例提供的功率调节方法与实施例一基本相同，本实施例提供的功率调节方法具体可以包括如下步骤：步骤S1：启动检测和调节程序。
步骤S2：判断电源线温度是否大于第五预设温度，基于所述电源线的温度高于第五预设温度的判断结果，执行步骤S4，基于所述电源线的温度不高于第五预设温度的判断结果，执行步骤S3。
步骤S3：判断电源线的温度是否大于第四预设温度，基于电源线的温度不大于第四预设温度的判断结果，执行步骤S5，基于电源线的温度大于第四预设温度的判断结果，执行步骤S6。
步骤S4：断开电加热器的加热电路，使电加热器停止加热，直至电源线温度低于第三预设温度后且低于第三预设温度的时间超过预设时间后，重新启动加热电路，并执行步骤S6。
步骤S5：电加热器保持当前功率档位工作，并执行步骤S9。
步骤S6：判断当前功率档位是否为最低档位，基于当前功率档位不为最低档位的判断结果，执行步骤S7，基于当前功率档位为最低档位的判断结果，执行步骤S8。
步骤S7：降低功率档位，电热水器以降低后的功率档位作为当前功率档位工作。
步骤S8：断开加热电路，且控制器控制电热水器发出警报。
步骤S9：电热水器显示当前功率档位。
本实施例中，通过电源线中的火线或零线的检测温度调整电加热器的加热温度，从而使电加热器的工作功率与用户电流负载能力相匹配，提高电热水器的使用安全性和使用寿命。
本实施例还提供了一种电热水器，所述电热水器应用如上所述的电热水器 功率调节方法。电热水器的电源插头内部设置有温度传感器，温度传感器的两个引线并入电热水器的电源线束中，并与电热水器中的控制电路连接。
实施例三
图3为本文提供的电热水器的功率调节方法的流程图，如图3所示，本实施例提供了一种电热水器的功率调节方法，与实施例一和实施例二相比，本实施例提供的功率调节方法，采用了对电源插头和电源线的温度进行同步检测，并结合电源插头和电源线的温度对功率进行调节。
具体地，如图3所示，本实施例提供的功率调节方法包括如下步骤：
步骤S1：启动检测和调节程序。
步骤S2：判断电源插头温度是否低于第二预设温度且电源线温度是否低于第五预设温度，基于电源插头温度不低于第二预设温度或电源线温度不低于第五预设温度的判断结果，执行步骤S4，基于电源插头温度低于第二预设温度且电源线温度低于第五预设温度的判断结果，执行步骤S3。
步骤S3：判断电源插头的温度是否低于第一预设温度且电源线温度是否低于第四预设温度，基于电源插头的温度低于第一预设温度且电源线温度低于第四预设温度的判断结果，执行步骤S5，基于电源插头的温度不低于第一预设温度或电源线温度不低于第四预设温度的判断结果，执行步骤S6。
步骤S4：断开电加热器的加热电路，使电加热器停止加热，直至电源插头温度和电源线的温度均低于第三预设温度后且低于第三预设温度的时间超过预设时间后，重新启动加热电路，并执行步骤S6。
步骤S5：电加热器保持当前功率档位工作，并执行步骤S9。
步骤S6：判断当前功率档位是否为最低档位，基于当前功率档位不为最低档位的判断结果，执行步骤S7，基于当前功率档位为最低档位的判断结果，执行步骤S8。
步骤S7：降低功率档位，电热水器以降低后的功率档位作为当前功率档位工作。
步骤S8：断开加热电路，且控制器控制电热水器发出警报。
步骤S9：电热水器显示当前功率档位。
本实施例中，通过对电源插头和电源线的检测温度调整电加热器的加热功率，可以通过兼顾电源插头和电源线的使用安全性，减小电路中发生过载、过热或电起火等引发安全事故的概率，提高电热水器的使用安全性和使用寿命。
本实施例还提供了一种电热水器，所述电热水器应用如上所述的电热水器功率调节方法。电热水器的电源插头内部设置有温度传感器，温度传感器的两个引线并入电热水器的电源线束中，并与电热水器中的控制电路连接。
本文提出了一种电热水器的功率调节方法，所述功率调节方法包括：根据电热水器的电源线和电源插头中至少之一的温度调节所述电热水器的加热功率。
在一些实施例中，所述功率调节方法包括：根据电热水器的电源插头的温度调节所述电热水器的加热功率；
根据电热水器的电源插头的温度调节所述电热水器的加热功率包括：
当前功率档位下，判断所述电源插头的温度是否高于第一预设温度，基于所述电源插头的温度高于第一预设温度的判断结果，降低所述功率档位，更新当前功率档位。
在一些实施例中，在判断所述电源插头的温度是否高于第一预设温度之前，所述功率调节方法还包括：
判断所述电源插头的温度是否高于第二预设温度，基于所述电源插头的温度高于第二预设温度的判断结果，断开所述电热水器的加热电路；
判断所述电源插头的温度是否高于第一预设温度包括：
基于所述电源插头的温度不高于第二预设温度的判断结果，判断所述电源插头的温度是否高于第一预设温度，其中，所述第二预设温度高于所述第一预设温度。
在一些实施例中，在断开所述电热水器的加热电路之后，所述功率调节方法还包括：对所述电源插头的温度进行持续检测，当所述电源插头的温度低于第三预设温度时，闭合所述加热电路，且降低功率档位，更新当前功率档位。
在一些实施例中，所述功率调节方法包括：根据所述电源线和所述电源插头的温度调节所述电热水器的加热功率；
根据所述电源线和所述电源插头的温度调节所述电热水器的加热功率包括：
当前功率档位下，判断所述电源插头的温度是否低于第一预设温度且所述电源线的温度是否低于第四预设温度，基于所述电源插头的温度不低于第一预设温度或所述电源线的温度不低于第四预设温度的判断结果，降低所述功率档位，更新当前功率档位。
在一些实施例中，在降低所述功率档位之前，所述功率调节方法还包括：判断所述功率档位是否为最低功率档位，基于所述功率档位为最低功率档位的判断结果，控制电热水器报警；
降低所述功率档位包括：
基于所述功率档位不为最低功率档位的判断结果，降低所述功率档位，更新当前功率档位。
在一些实施例中，所述功率调节方法还包括：采用所述电源插头内置的温度传感器或所述电源插头外置的红外测温仪对所述电源插头的温度进行检测。
在一些实施例中，所述功率调节方法还包括：对所述电源线内火线或零线的温度进行检测。
在一些实施例中，所述功率调节方法还包括：显示所述当前功率档位。
本文还提出了一种电热水器，所述电热水器应用如上所述的电热水器功率调节方法。
本文提供的电热水器的功率调节方法，通过电源插头和电源线中至少之一的检测温度调整电加热器的加热功率，能够使当电加热器的工作电流超过用户电路负载能力时，对电流过载引发的电源插头和电源线中至少之一的温度升高现象进行检测，从而根据检测温度调整电加热器的工作功率，从而使电加热器的工作功率与用户电流负载能力相匹配，尽可能地减小电路中发生过载、过热或电起火等引发安全事故的问题，提高电热水器的使用安全性和使用寿命。
本文提供的电热水器，通过采用上述的功率调节方法，能够使电热水器的工作功率与用户的用电环境相匹配，提高电热水器的使用安全性和使用寿命。
Claims (10)
- 一种电热水器的功率调节方法，所述功率调节方法包括：根据电热水器的电源线和电源插头中至少之一的温度调节所述电热水器的加热功率。
- 根据权利要求1所述的调节方法，其中，所述功率调节方法包括：根据电热水器的电源插头的温度调节所述电热水器的加热功率；根据电热水器的电源插头的温度调节所述电热水器的加热功率包括：当前功率档位下，判断所述电源插头的温度是否高于第一预设温度，基于所述电源插头的温度高于第一预设温度的判断结果，降低所述功率档位，更新当前功率档位。
- 根据权利要求2所述的功率调节方法，在判断所述电源插头的温度是否高于第一预设温度之前，所述功率调节方法还包括：判断所述电源插头的温度是否高于第二预设温度，基于所述电源插头的温度高于第二预设温度的判断结果，断开所述电热水器的加热电路；判断所述电源插头的温度是否高于第一预设温度包括：基于所述电源插头的温度不高于第二预设温度的判断结果，判断所述电源插头的温度是否高于第一预设温度，其中，所述第二预设温度高于所述第一预设温度。
- 根据权利要求3所述的功率调节方法，在断开所述电热水器的加热电路之后，所述功率调节方法还包括：对所述电源插头的温度进行持续检测，当所述电源插头的温度低于第三预设温度时，闭合所述加热电路，且降低功率档位，更新当前功率档位。
- 根据权利要求1所述的功率调节方法，其中，所述功率调节方法包括：根据所述电源线和所述电源插头的温度调节所述电热水器的加热功率；根据所述电源线和所述电源插头的温度调节所述电热水器的加热功率包括：当前功率档位下，判断所述电源插头的温度是否低于第一预设温度且所述电源线的温度是否低于第四预设温度，基于所述电源插头的温度不低于第一预设温度或所述电源线的温度不低于第四预设温度的判断结果，降低所述功率档位，更新当前功率档位。
- 根据权利要求2、4或5所述的功率调节方法，在降低所述功率档位之前，所述功率调节方法还包括：判断所述功率档位是否为最低功率档位，基于所述功率档位为最低功率档位的判断结果，控制电热水器报警；降低所述功率档位包括：基于所述功率档位不为最低功率档位的判断结果，降低所述功率档位，更新当前功率档位。
- 根据权利要求1所述的功率调节方法，所述功率调节方法还包括：采用所述电源插头内置的温度传感器或所述电源插头外置的红外测温仪对所述电源插头的温度进行检测。
- 根据权利要求1所述的功率调节方法，所述功率调节方法还包括：对所述电源线内火线或零线的温度进行检测。
- 根据权利要求6所述的功率调节方法，所述功率调节方法还包括：显示所述当前功率档位。
- 一种电热水器，所述电热水器应用如权利要求1-9任一项所述的电热水器功率调节方法。
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| CN201964624U (zh) * | 2011-03-15 | 2011-09-07 | 邱家斌 | 电热水器 |
| CN203481790U (zh) * | 2013-01-29 | 2014-03-12 | 海尔集团公司 | 一种防止电源线温度过高的装置及应用该装置的电器 |
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