CN107238125A - Electric heater and control method and system thereof - Google Patents

Electric heater and control method and system thereof Download PDF

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Publication number
CN107238125A
CN107238125A CN201710507518.8A CN201710507518A CN107238125A CN 107238125 A CN107238125 A CN 107238125A CN 201710507518 A CN201710507518 A CN 201710507518A CN 107238125 A CN107238125 A CN 107238125A
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electric heater
power
preset
operating power
ambient temperature
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刘云艳
杜文波
向延钊
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Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing Co Ltd
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Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D13/00Electric heating systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/10Arrangement or mounting of control or safety devices
    • F24D19/1096Arrangement or mounting of control or safety devices for electric heating systems

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Heating Systems (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

The invention discloses an electric heater and a control method and a control system thereof, wherein the electric heater comprises a silicon controlled rectifier and a relay which are connected in parallel, and the method comprises the following steps: s1, detecting the ambient temperature of the environment where the electric heater is located in real time when the electric heater starts to operate; s2, controlling the electric heater to operate for a first time at a first preset power until the current environment temperature reaches a first preset temperature; s3, calculating the ambient temperature rising rate in the first time, and calling a preset power meter according to the ambient temperature rising rate to obtain the running power of the electric heater, wherein the ambient temperature rising rate and the running power of the electric heater are in one-to-one correspondence; and S4, controlling the turn-off or the turn-on of the relay according to the running power and controlling the on-off time of the controllable silicon so as to enable the electric heater to run at the running power, thereby avoiding frequent turn-on and turn-off of the relay while realizing constant temperature heating of the electric heater. The invention also discloses a non-transitory computer readable storage medium.

Description

电暖器及其控制方法、系统Electric heater and its control method and system

技术领域technical field

本发明涉及电暖器领域,具体涉及一种电暖器的控制方法、一种非临时性计算机可读存储介质、一种电暖器的控制系统和一种电暖器。The invention relates to the field of electric heaters, in particular to a control method for an electric heater, a non-transitory computer-readable storage medium, a control system for an electric heater and an electric heater.

背景技术Background technique

目前,人们对电暖器恒温功能的要求越来越高。为实现电暖器的恒温控制,可以采用热电偶检测某一点的温度,并将该温度和预设温度进行比对,进而设定相应的程序来调节功率,以使该点温度达到预设温度并保持。At present, people have higher and higher requirements for the constant temperature function of electric heaters. In order to realize the constant temperature control of the electric heater, a thermocouple can be used to detect the temperature at a certain point, and the temperature is compared with the preset temperature, and then the corresponding program is set to adjust the power so that the temperature at this point reaches the preset temperature And kept.

相关技术中,采用电子式的控制方式,在电源板上装有由弱电控制强电的继电器,通过控制继电器来控制档位。由于发热体结构和原理的限制,现有取暖器一般只有三档,如800W-1200W-2000W,这三档功率无法保证每一个设定的温度都有合适的功率使其保持恒温。为此,如图1所示,当环境温度Ta低于预设温度Ts,且Ta≦Ts-A(如A=5℃)时,控制电暖器高档加热;当Ts-A≦Ta≦Ts-B(如B=2℃)时,控制电暖器中档加热;当Ts-B≦Ta≦Ts时,控制电暖器低档加热;当Ta≧Ts时,控制电暖器停止加热;当温度再降下来时,通过上述规则恢复相应的档位加热。该技术中电暖器的功率、温度随时间变化曲线如图2所示,其中,高档例如为2000W,中档例如为1200W,低档例如为800W。In the related technology, an electronic control method is adopted, and a relay is installed on the power board to control the strong current by the weak current, and the gear position is controlled by controlling the relay. Due to the limitation of the structure and principle of the heating element, the existing heater generally only has three gears, such as 800W-1200W-2000W, these three gears of power cannot guarantee that each set temperature has a suitable power to keep the temperature constant. For this reason, as shown in Figure 1, when the ambient temperature Ta is lower than the preset temperature Ts, and Ta≦Ts-A (such as A=5°C), control the electric heater to heat at a high level; when Ts-A≦Ta≦Ts When -B (such as B=2℃), control the mid-range heating of the electric heater; when Ts-B≦Ta≦Ts, control the low-grade heating of the electric heater; when Ta≧Ts, control the electric heater to stop heating; when the temperature When it is lowered again, the corresponding gear heating will be resumed through the above rules. The time-varying curves of power and temperature of electric heaters in this technology are shown in Figure 2, where the high-grade is, for example, 2000W, the mid-range is, for example, 1200W, and the low-grade is, for example, 800W.

虽然该技术可以较好的让电暖器以低功率工作在设定的温度范围内,但由于电暖器加热存在热惯性,即当电暖器加热到Ta≧Ts时,Ta还会上升一定值,假设为Tx,Tx值的大小与环境和电暖器本身的特性有关,由此使得电暖器始终工作在温度范围Ts-B≦Ta≦Tx内。如果B太小的话,800W功率对应的继电器会不停的断开闭合,影响继电器的使用寿命,同时继电器闭合和断开的声音也可能影响用户的体验。如果B值设定太大的话,就会造成温度波动范围很大,也会影响用户对恒温要求的舒适体验。同时热惯性电暖器的温度达到Tx,比预设温度Ts高,不仅不满足用户的舒适需求,也会造成能量浪费。Although this technology can make the electric heater work within the set temperature range with low power, but due to the thermal inertia of the electric heater heating, that is, when the electric heater is heated to Ta≧Ts, Ta will rise by a certain amount. Value, assuming Tx, the value of Tx is related to the environment and the characteristics of the electric heater itself, so that the electric heater always works in the temperature range Ts-B≦Ta≦Tx. If B is too small, the relay corresponding to the 800W power will keep opening and closing, which will affect the service life of the relay. At the same time, the sound of the relay closing and disconnecting may also affect the user experience. If the B value is set too large, it will cause a wide range of temperature fluctuations, which will also affect the user's comfortable experience of constant temperature requirements. At the same time, the temperature of the thermal inertia electric heater reaches Tx, which is higher than the preset temperature Ts, which not only fails to meet the user's comfort needs, but also causes energy waste.

发明内容Contents of the invention

本发明旨在至少在一定程度上解决上述技术中的技术问题之一。The present invention aims to solve one of the technical problems in the above-mentioned technologies at least to a certain extent.

为此,本发明的第一个目的在于提出一种电暖器的控制方法,该方法能够根据当前环境温度的变化情况获得电暖器的运行功率,从而使电暖器智能恒温加热,且能够避免继电器的频繁闭合和断开。For this reason, the first object of the present invention is to propose a control method for an electric heater, which can obtain the operating power of the electric heater according to the change of the current ambient temperature, thereby enabling the electric heater to heat at a constant temperature intelligently, and can Avoid frequent closing and opening of relays.

本发明的第二个目的在于提出一种非临时性计算机可读存储介质。A second object of the present invention is to propose a non-transitory computer-readable storage medium.

本发明的第三个目的在于提出一种电暖器的控制系统。The third object of the present invention is to provide a control system for an electric heater.

本发明的第四个目的在于提出一种电暖器。The fourth object of the present invention is to provide an electric heater.

为达到上述目的,本发明第一方面实施例提出了一种电暖器的控制方法,电暖器包括并联连接的可控硅和继电器,所述方法包括以下步骤:S1,在所述电暖器开始运行时,实时检测所述电暖器所处环境的环境温度;S2,控制所述电暖器以第一预设功率运行第一时间,直至当前环境温度达到第一预设温度;S3,计算所述第一时间内的环境温度上升速率,并根据所述环境温度上升速率调用预设功率表以获得所述电暖器的运行功率,其中,在所述预设功率表中,环境温度上升速率与电暖器运行功率呈一一对应关系;S4,根据所述运行功率控制所述继电器的关断或闭合,以及控制所述可控硅的通断时间,以使所述电暖器以所述运行功率运行。In order to achieve the above object, the embodiment of the first aspect of the present invention proposes a control method for an electric heater, the electric heater includes a thyristor and a relay connected in parallel, and the method includes the following steps: S1, in the electric heater When the heater starts to operate, detect the ambient temperature of the environment where the electric heater is located in real time; S2, control the electric heater to run at the first preset power for the first time until the current ambient temperature reaches the first preset temperature; S3 , calculate the ambient temperature rise rate within the first time, and call a preset power table according to the ambient temperature rise rate to obtain the operating power of the electric heater, wherein, in the preset power table, the ambient There is a one-to-one correspondence relationship between the rate of temperature rise and the operating power of the electric heater; S4, control the switching off or closing of the relay according to the operating power, and control the on-off time of the thyristor, so that the electric heater The device operates at the stated operating power.

根据本发明实施例的电暖器的控制方法,通过实时检测环境温度,并根据当前环境温度的变化情况获得电暖器的运行功率,并通过继电器的断开或闭合以及可控硅的通断时间调控电暖器以获得的运行功率运行,从而使电暖器恒温加热,避免了继电器的频繁闭合和断开,延长了继电器的电气寿命,减少了噪音,并且还减小了功耗,节能环保,增加了用户对恒温要求的舒适体验。According to the control method of the electric heater in the embodiment of the present invention, the operating power of the electric heater is obtained by detecting the ambient temperature in real time and according to the change of the current ambient temperature, and through the opening or closing of the relay and the switching of the thyristor The electric heater is controlled by time to obtain the maximum operating power, so that the electric heater can be heated at a constant temperature, avoiding the frequent closing and opening of the relay, prolonging the electrical life of the relay, reducing noise, and reducing power consumption, saving energy Environmental protection, increasing the user's comfort experience for constant temperature requirements.

另外,根据本发明上述实施例的电暖器的控制方法还可以具有如下附加的技术特征:In addition, the control method of the electric heater according to the above-mentioned embodiments of the present invention may also have the following additional technical features:

根据本发明的一个实施例,所述控制方法还包括以下步骤:S5,控制所述电暖器以所述运行功率运行预设时间;S6,根据所述预设时间内的环境温度变化值和所述预设功率表调整所述电暖器的运行功率,并重复步骤S4-步骤S6。According to an embodiment of the present invention, the control method further includes the following steps: S5, controlling the electric heater to run at the operating power for a preset time; S6, according to the ambient temperature change value and the preset time The preset power meter adjusts the operating power of the electric heater, and repeats steps S4-S6.

根据本发明的一个实施例,所述预设功率表为环境温度上升速率区间-电暖器运行功率-功率等级一一对应表,所述电暖器的运行功率通过以下公式计算得到:According to an embodiment of the present invention, the preset power table is a one-to-one correspondence table of ambient temperature rise rate interval-electric heater operating power-power level, and the operating power of the electric heater is calculated by the following formula:

Px=L*D*y*Pm,Px=L*D*y*Pm,

其中,Px为所述电暖器的运行功率,L为第一预设参数,D为所述功率等级,且D为大于等于0的整数,y为功率补偿因子,Pm为所述第一预设功率。Wherein, Px is the operating power of the electric heater, L is the first preset parameter, D is the power level, and D is an integer greater than or equal to 0, y is the power compensation factor, and Pm is the first preset parameter. Set power.

根据本发明的一个实施例,在所述步骤S3中,所述运行功率所对应的功率补偿因子为第一预设补偿值。According to an embodiment of the present invention, in the step S3, the power compensation factor corresponding to the operating power is a first preset compensation value.

根据本发明的一个实施例,在所述步骤S4中,还包括:判断获得的运行功率是否大于等于第二预设功率;如果所述运行功率大于等于所述第二预设功率,则控制所述继电器处于闭合状态,并通过控制所述可控硅的通断时间调节所述电暖器的运行功率,以使所述电暖器以所述运行功率运行;如果所述运行功率小于所述第二预设功率,则控制所述继电器处于断开状态,并通过控制所述可控硅的通断时间调节所述电暖器的运行功率,以使所述电暖器以运行功率运行。According to an embodiment of the present invention, in the step S4, it also includes: judging whether the obtained operating power is greater than or equal to the second preset power; if the operating power is greater than or equal to the second preset power, then controlling the The relay is in a closed state, and the operating power of the electric heater is adjusted by controlling the on-off time of the thyristor, so that the electric heater operates at the operating power; if the operating power is less than the For the second preset power, the relay is controlled to be in an off state, and the operating power of the electric heater is adjusted by controlling the on-off time of the thyristor, so that the electric heater operates at the operating power.

根据本发明的一个实施例,在所述步骤S6中,还包括:判断所述预设时间内的环境温度变化值是否大于第二预设温度;如果环境温度上升值大于所述第二预设温度,则将所述电暖器的运行功率下调一个等级,且下调后的运行功率所对应的功率补偿因子为第二预设补偿值,其中,所述第二预设补偿值小于所述第一预设补偿值;如果环境温度下降值大于所述第二预设温度,则将所述电暖器的运行功率上调一个等级,且上调后的运行功率所对应的功率补偿因子为所述第二预设补偿值;如果环境温度上升值小于等于所述第二预设温度,则将所述电暖器的运行功率下调一个等级,且下调后的运行功率所对应的功率补偿因子为所述第一预设补偿值;如果环境温度下降值小于等于所述第二预设温度,则将所述电暖器的运行功率上调一个等级,且上调后的运行功率所对应的功率补偿因子为所述第一预设补偿值。According to an embodiment of the present invention, in the step S6, it also includes: judging whether the ambient temperature change value within the preset time is greater than a second preset temperature; if the ambient temperature rise value is greater than the second preset temperature temperature, the operating power of the electric heater is lowered by one level, and the power compensation factor corresponding to the lowered operating power is the second preset compensation value, wherein the second preset compensation value is smaller than the first A preset compensation value; if the ambient temperature drop value is greater than the second preset temperature, the operating power of the electric heater is increased by one level, and the power compensation factor corresponding to the increased operating power is the first Two preset compensation values; if the ambient temperature rise value is less than or equal to the second preset temperature, the operating power of the electric heater is lowered by one level, and the power compensation factor corresponding to the lowered operating power is the The first preset compensation value; if the drop value of the ambient temperature is less than or equal to the second preset temperature, the operating power of the electric heater is increased by one level, and the power compensation factor corresponding to the increased operating power is the specified the first preset compensation value.

进一步地,本发明提出了一种非临时性计算机可读存储介质,其上存储有计算机程序,所述计算机程序被处理器执行时实现上述的电暖器的控制方法。Furthermore, the present invention proposes a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned method for controlling an electric heater is realized.

根据本发明实施例的非临时性计算机可读存储介质,使电暖器执行该介质上存储的计算机程序时,能够使电暖器恒温加热,避免了继电器的频繁闭合和断开,延长了继电器的电气寿命,减少了噪音,并且还减小了功耗,节能环保,增加了用户对恒温要求的舒适体验。According to the non-transitory computer-readable storage medium in the embodiment of the present invention, when the electric heater executes the computer program stored on the medium, the electric heater can be heated at a constant temperature, avoiding the frequent closing and opening of the relay, and prolonging the delay time of the relay. Long electrical life, reduced noise, and also reduced power consumption, energy saving and environmental protection, increasing the user's comfort experience for constant temperature requirements.

为达到上述目的,本发明第三方面实施例提出了一种电暖器的控制系统,电暖器包括并联连接的可控硅和继电器,所述控制系统包括;加热模块;检测模块,用于实时检测所述电暖器所处环境的环境温度及所述加热模块的加热时间;控制模块,用于在所述电暖器开始运行时,控制所述电暖器以第一预设功率运行第一时间,直至当前环境温度达到第一预设温度,计算所述第一时间内的环境温度上升速率,并根据所述环境温度上升速率调用预设功率表以获得所述电暖器的运行功率,其中,在所述预设功率表中,环境温度上升速率与电暖器运行功率一一对应;无级变功模块,用于根据所述运行功率控制所述继电器的关断或闭合,以及控制所述可控硅的通断时间,以使所述电暖器以所述运行功率运行。In order to achieve the above purpose, the embodiment of the third aspect of the present invention proposes a control system for an electric heater, the electric heater includes thyristors and relays connected in parallel, and the control system includes; a heating module; a detection module for Real-time detection of the ambient temperature of the environment where the electric heater is located and the heating time of the heating module; the control module is used to control the electric heater to operate at a first preset power when the electric heater starts to operate The first time, until the current ambient temperature reaches the first preset temperature, calculate the ambient temperature rise rate within the first time, and call the preset power meter according to the ambient temperature rise rate to obtain the operation of the electric heater Power, wherein, in the preset power meter, the ambient temperature rise rate is in one-to-one correspondence with the operating power of the electric heater; the stepless power conversion module is used to control the closing or closing of the relay according to the operating power, And controlling the on-off time of the thyristor, so that the electric heater operates at the operating power.

根据本发明实施例的电暖器的控制系统,通过实时检测环境温度,并根据当前环境温度的变化情况获得电暖器的运行功率,并通过继电器的断开或闭合以及可控硅的通断时间调控电暖器以获得的运行功率运行,从而使电暖器恒温加热,避免了继电器的频繁闭合和断开,延长了继电器的电气寿命,减少了噪音,并且还减小了功耗,节能环保,增加了用户对恒温要求的舒适体验。According to the control system of the electric heater according to the embodiment of the present invention, the operating power of the electric heater is obtained according to the change of the current ambient temperature by detecting the ambient temperature in real time, and through the opening or closing of the relay and the on-off of the thyristor The electric heater is controlled by time to obtain the maximum operating power, so that the electric heater can be heated at a constant temperature, avoiding the frequent closing and opening of the relay, prolonging the electrical life of the relay, reducing noise, and reducing power consumption, saving energy Environmental protection, increasing the user's comfort experience for constant temperature requirements.

另外,根据本发明上述实施例的电暖器的控制系统还可以具有如下附加的技术特征:In addition, the control system of the electric heater according to the above-mentioned embodiments of the present invention may also have the following additional technical features:

根据本发明的一个实施例,所述控制模块还用于重复执行以下步骤:控制所述电暖器以所述运行功率运行预设时间;根据所述预设时间内的环境温度变化值和所述预设功率表调整所述电暖器的运行功率;其中,所述无级变功模块,还用于在每次调整运行功率时,控制所述继电器的关断或闭合,以及控制所述可控硅的通断时间,以使所述电暖器以调整后的运行功率运行。According to an embodiment of the present invention, the control module is further configured to repeatedly execute the following steps: control the electric heater to run at the operating power for a preset time; The preset power meter adjusts the operating power of the electric heater; wherein, the stepless power conversion module is also used to control the closing or closing of the relay and control the The on-off time of the thyristor, so that the electric heater operates at the adjusted operating power.

根据本发明的一个实施例,所述预设功率表为环境温度上升速率区间-电暖器运行功率-功率等级一一对应表,所述电暖器的运行功率通过以下公式计算得到:According to an embodiment of the present invention, the preset power table is a one-to-one correspondence table of ambient temperature rise rate interval-electric heater operating power-power level, and the operating power of the electric heater is calculated by the following formula:

Px=L*D*y*Pm,Px=L*D*y*Pm,

其中,Px为所述电暖器的运行功率,L为第一预设参数,D为所述功率等级,且D为大于等于0的整数,y为功率补偿因子,Pm为所述第一预设功率。Wherein, Px is the operating power of the electric heater, L is the first preset parameter, D is the power level, and D is an integer greater than or equal to 0, y is the power compensation factor, and Pm is the first preset parameter. Set power.

根据本发明的一个实施例,所述控制模块根据所述环境温度上升速率调用预设功率表以获得所述电暖器的运行功率时,获得的所述电暖器的运行功率所对应的功率补偿因子为第一预设补偿值。According to an embodiment of the present invention, when the control module invokes a preset power table according to the ambient temperature rise rate to obtain the operating power of the electric heater, the obtained power corresponding to the operating power of the electric heater The compensation factor is a first preset compensation value.

根据本发明的一个实施例,所述无级变功模块具体用于:判断所述运行功率是否大于等于第二预设功率;如果所述运行功率大于等于所述第二预设功率,则控制所述继电器处于闭合状态,并通过控制所述可控硅的通断时间调节所述电暖器的运行功率,以使所述电暖器以所述运行功率运行;如果所述运行功率小于所述第二预设功率,则控制所述继电器处于断开状态,并通过控制所述可控硅的通断时间调节所述电暖器的运行功率,以使所述电暖器以所述运行功率运行。According to an embodiment of the present invention, the stepless power conversion module is specifically used to: judge whether the operating power is greater than or equal to the second preset power; if the operating power is greater than or equal to the second preset power, control The relay is in a closed state, and adjusts the operating power of the electric heater by controlling the on-off time of the thyristor, so that the electric heater operates at the operating power; if the operating power is less than the set The second preset power, then control the relay to be in the off state, and adjust the operating power of the electric heater by controlling the on-off time of the thyristor, so that the electric heater operates at the Power running.

根据本发明的一个实施例,所述控制模块在根据所述预设时间内的环境温度变化值和所述预设功率表调整所述电暖器的运行功率时,具体用于:判断所述预设时间内的环境温度变化值是否大于第二预设温度;如果环境温度上升值大于所述第二预设温度,则将所述电暖器的运行功率下调一个等级,且下调后的运行功率所对应的功率补偿因子为第二预设补偿值,其中,所述第二预设补偿值小于所述第一预设补偿值;如果环境温度下降值大于所述第二预设温度,则将所述电暖器的运行功率上调一个等级,且上调后的运行功率所对应的功率补偿因子为所述第二预设补偿值;如果环境温度上升值小于等于所述第二预设温度,则将所述电暖器的运行功率下调一个等级,且下调后的运行功率所对应的功率补偿因子为所述第一预设补偿值;如果环境温度下降值小于等于所述第二预设温度,则将所述电暖器的运行功率上调一个等级,且上调后的运行功率所对应的功率补偿因子为所述第一预设补偿值。According to an embodiment of the present invention, when the control module adjusts the operating power of the electric heater according to the ambient temperature change value within the preset time and the preset power meter, it is specifically used to: determine the Whether the ambient temperature change value within the preset time is greater than the second preset temperature; if the ambient temperature rise value is greater than the second preset temperature, the operating power of the electric heater is lowered by one level, and the lowered operation The power compensation factor corresponding to the power is a second preset compensation value, wherein the second preset compensation value is smaller than the first preset compensation value; if the ambient temperature drop value is greater than the second preset temperature, then The operating power of the electric heater is increased by one level, and the power compensation factor corresponding to the increased operating power is the second preset compensation value; if the ambient temperature rise value is less than or equal to the second preset temperature, Then the operating power of the electric heater is lowered by one level, and the power compensation factor corresponding to the lowered operating power is the first preset compensation value; if the ambient temperature drop value is less than or equal to the second preset temperature , the operating power of the electric heater is increased by one level, and the power compensation factor corresponding to the increased operating power is the first preset compensation value.

进一步地,本发明提出了一种电暖器,其包括:并联连接的可控硅和继电器;上述的电暖器的控制系统。Further, the present invention proposes an electric heater, which includes: a thyristor and a relay connected in parallel; and the above-mentioned control system of the electric heater.

本发明实施例的电暖器,能够实现恒温加热,且避免了继电器的频繁闭合和断开,延长了继电器的电气寿命,减少了噪音,还减小了功耗,节能环保,增加了用户对恒温要求的舒适体验。The electric heater in the embodiment of the present invention can realize constant temperature heating, and avoid frequent closing and opening of the relay, prolong the electrical life of the relay, reduce noise, reduce power consumption, save energy and protect the environment, and increase user confidence Comfortable experience with constant temperature requirements.

本发明的附加方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本发明的实践了解到。Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

附图说明Description of drawings

本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解,其中:The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

图1为现有的一种电暖器的取暖方式的示意图;Fig. 1 is the schematic diagram of the heating mode of existing a kind of electric heater;

图2为与图1对应的电暖器功率、环境温度随时间变化的示意图;Fig. 2 is the schematic diagram of electric heater power corresponding to Fig. 1, ambient temperature change with time;

图3是根据本发明一个实施例的电暖器的控制方法的流程图;Fig. 3 is a flowchart of a control method for an electric heater according to an embodiment of the present invention;

图4为根据本发明另一个实施例的电暖器的控制方法的流程图;4 is a flowchart of a control method for an electric heater according to another embodiment of the present invention;

图5为本发明的一个具体实施例的电暖器的控制方法的流程图;5 is a flowchart of a control method for an electric heater according to a specific embodiment of the present invention;

图6为根据本发明实施例的电暖器的控制系统的结构示意图;6 is a schematic structural diagram of a control system for an electric heater according to an embodiment of the present invention;

图7为根据本发明实施例的电暖器的结构示意图。Fig. 7 is a schematic structural diagram of an electric heater according to an embodiment of the present invention.

具体实施方式detailed description

下面详细描述本发明的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,旨在用于解释本发明,而不能理解为对本发明的限制。Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

下面参考附图描述本发明实施例的电暖器及其控制方法、系统。The following describes the electric heater and its control method and system according to the embodiments of the present invention with reference to the accompanying drawings.

图3是根据本发明一个实施例的电暖器的控制方法的流程图。Fig. 3 is a flowchart of a method for controlling an electric heater according to an embodiment of the present invention.

在本发明的实施例中,电暖器包括并联连接的可控硅和继电器。In an embodiment of the invention, the electric heater includes a thyristor and a relay connected in parallel.

具体地,可以在电暖器的电源板上安装上述并联连接的可控硅和继电器。其中,继电器的个数可以是一个、两个或多个。Specifically, the above-mentioned thyristors and relays connected in parallel can be installed on the power board of the electric heater. Wherein, the number of relays can be one, two or more.

如图3所示,该电暖器的控制方法包括以下步骤:As shown in Figure 3, the control method of the electric heater includes the following steps:

S1,电暖器开始运行时,实时检测电暖器所处环境的环境温度。S1, when the electric heater starts to run, the ambient temperature of the environment where the electric heater is located is detected in real time.

S2,控制电暖器以第一预设功率运行第一时间,直至当前环境温度达到第一预设温度。S2. Control the electric heater to run at the first preset power for a first time until the current ambient temperature reaches the first preset temperature.

其中,第一预设功率可以为电暖器的最大运行功率,即满功率,第一时间t为电暖器开始运行至环境温度达到第一预设温度所用的时间。Wherein, the first preset power may be the maximum operating power of the electric heater, that is, full power, and the first time t is the time from when the electric heater starts to run until the ambient temperature reaches the first preset temperature.

可以理解,为了获得第一时间t,在实时检测环境温度的同时,还检测每个环境温度对应的用时。It can be understood that, in order to obtain the first time t, while detecting the ambient temperature in real time, the time corresponding to each ambient temperature is also detected.

需要说明的是,电暖器以第一预设功率运行时,控制继电器处于闭合状态,且控制可控硅导通。可以理解,可控硅的导通时间与可控硅的输出电压成正比,进而与电暖器的运行功率成正比,即电暖器的运行功率可通过可控硅的通断时间进行调节。It should be noted that, when the electric heater operates at the first preset power, the control relay is in a closed state, and the control silicon controlled rectifier is turned on. It can be understood that the conduction time of the thyristor is directly proportional to the output voltage of the thyristor, and further proportional to the operating power of the electric heater, that is, the operating power of the electric heater can be adjusted through the on-off time of the thyristor.

S3,计算第一时间内的环境温度上升速率,并根据环境温度上升速率调用预设功率表以获得电暖器的运行功率。S3. Calculate the rate of rise of the ambient temperature within the first time period, and call the preset power meter according to the rate of rise of the ambient temperature to obtain the operating power of the electric heater.

其中,在预设功率表中,环境温度上升速率与电暖器运行功率呈一一对应关系。Wherein, in the preset power table, there is a one-to-one correspondence relationship between the rate of increase of the ambient temperature and the operating power of the electric heater.

在本发明的实施例中,环境温度上升速率根据以下公式(1)计算得到:In an embodiment of the present invention, the ambient temperature rise rate is calculated according to the following formula (1):

Ka=(Ts-T0)/t (1)Ka=(Ts-T0)/t (1)

其中,Ka为环境温度上升速率,t为第一时间,T0为第一时间t内环境的初始温度,即电暖器开始运行时的环境温度,Ts为第一时间t内环境的结束温度,即第一预设温度。Among them, Ka is the rate of increase of ambient temperature, t is the first time, T0 is the initial temperature of the environment within the first time t, that is, the ambient temperature when the electric heater starts to operate, Ts is the end temperature of the environment within the first time t, Namely the first preset temperature.

在本发明的一个具体实施例中,预设功率表如下表1所示:In a specific embodiment of the present invention, the preset power table is shown in Table 1 below:

表1Table 1

在本发明的实施例中,预设功率表为环境温度上升速率区间-电暖器运行功率-功率等级一一对应表,电暖器的运行功率通过以下公式(2)计算得到:In an embodiment of the present invention, the preset power table is a one-to-one correspondence table of the rate range of the ambient temperature rise - the operating power of the electric heater - the power level, and the operating power of the electric heater is calculated by the following formula (2):

Px=L*D*y*Pm (2)Px=L*D*y*Pm (2)

其中,Px为电暖器的运行功率,L为第一预设参数,D为功率等级,且D为大于等于0的整数,y为功率补偿因子,Pm为第一预设功率。Wherein, Px is the operating power of the electric heater, L is the first preset parameter, D is the power level, and D is an integer greater than or equal to 0, y is the power compensation factor, and Pm is the first preset power.

举例而言,如表1所示,环境温度上升速率为0.9℃/min时,对应的电暖器的运行功率Px=0.1*1*y*Pm=0.1*y*Pm,即第一预设参数L为0.1,功率等级D为1;环境温度上升速率为0.3℃/min时,对应的电暖器的运行功率Px=0.1*7*y*Pm=0.7*y*Pm,即第一预设参数L为0.1,功率等级D为7。For example, as shown in Table 1, when the ambient temperature rise rate is 0.9°C/min, the corresponding operating power of the electric heater Px=0.1*1*y*Pm=0.1*y*Pm, that is, the first preset The parameter L is 0.1, and the power level D is 1; when the ambient temperature rise rate is 0.3°C/min, the corresponding operating power of the electric heater Px=0.1*7*y*Pm=0.7*y*Pm, that is, the first preset Let the parameter L be 0.1, and the power level D be 7.

具体地,在本发明的一个实施例中,在步骤S3中,运行功率所对应的功率补偿因子y为第一预设补偿值,其中,第一预设补偿值可以为1。即言,计算得到第一时间内t的环境温度上升速率Ka之后,在功率补偿因子为1时查询预设功率表即表1获得电暖器的运行功率。Specifically, in one embodiment of the present invention, in step S3, the power compensation factor y corresponding to the operating power is a first preset compensation value, wherein the first preset compensation value may be 1. In other words, after calculating the ambient temperature rise rate Ka within the first time period t, when the power compensation factor is 1, query the preset power table, Table 1, to obtain the operating power of the electric heater.

S4,根据运行功率控制继电器的关断或闭合,以及控制可控硅的通断时间,以使电暖器以运行功率运行。S4, according to the operating power, the relay is turned off or closed, and the on-off time of the thyristor is controlled, so that the electric heater operates at the operating power.

具体地,判断获得的运行功率是否大于等于第二预设功率;如果获得的运行功率大于等于第二预设功率,则控制继电器处于闭合状态,并通过控制可控硅的通断时间调节电暖器的运行功率,以使电暖器以获得的运行功率运行;如果获得的运行功率小于第二预设功率,则控制继电器处于断开状态,并通过控制可控硅的通断时间调节电暖器的运行功率,以使电暖器以获得的运行功率。Specifically, it is determined whether the obtained operating power is greater than or equal to the second preset power; if the obtained operating power is greater than or equal to the second preset power, the control relay is in a closed state, and the electric heater is adjusted by controlling the on-off time of the thyristor. If the obtained operating power is less than the second preset power, the control relay is in the disconnected state, and the electric heater is adjusted by controlling the on-off time of the thyristor. The operating power of the heater, so that the electric heater can obtain the maximum operating power.

其中,第二预设功率取值为0.4*Pm~0.6*Pm,例如,可以为0.5*Pm。Wherein, the value of the second preset power is 0.4*Pm˜0.6*Pm, for example, it may be 0.5*Pm.

举例而言,当运行功率Px≥0.5*Pm时,控制继电器闭合,通过控制可控硅的通断时间来调节电压,达到调节功率的目的,以使电暖器以运行功率Px运行;当运行功率Px<0.5*Pm,控制继电器断开,通过控制可控硅的通断时间来调节电压,达到调节功率的目的,以使电暖器以运行功率Px运行。For example, when the operating power Px≥0.5*Pm, the control relay is closed, and the voltage is adjusted by controlling the on-off time of the thyristor to achieve the purpose of adjusting the power, so that the electric heater operates at the operating power Px; when operating When the power Px<0.5*Pm, the control relay is turned off, and the voltage is adjusted by controlling the on-off time of the thyristor to achieve the purpose of adjusting the power, so that the electric heater can run at the operating power Px.

可以看出,整个功率调节过程中,通过可控硅的通断时间进行调节电暖器的运行功率,只有运行功率的大于等于0.5*Pm(如1000W)时,才控制继电器动作,由此,能够避免继电器的频繁通断造成的电器噪音,同时保证通过可控硅的电流减半,使得可控硅在散热条件不佳的情况下不至于被击穿。It can be seen that during the entire power adjustment process, the operating power of the electric heater is adjusted through the on-off time of the thyristor. Only when the operating power is greater than or equal to 0.5*Pm (such as 1000W), the relay is controlled to operate. Therefore, It can avoid the electrical noise caused by the frequent on-off of the relay, and at the same time ensure that the current passing through the thyristor is halved, so that the thyristor will not be broken down under the condition of poor heat dissipation.

进一步地,如图4所示,电暖器的控制方法还可以包括以下步骤:Further, as shown in FIG. 4, the control method of the electric heater may further include the following steps:

S5,控制电暖器以运行功率运行预设时间。S5, controlling the electric heater to run at the operating power for a preset time.

在本发明的实施例中,预设时间可以根据经验进行设置,如可以是5~30s。In the embodiment of the present invention, the preset time may be set according to experience, for example, it may be 5-30s.

S6,根据预设时间内的环境温度变化值和预设功率表调整电暖器的运行功率,并重复步骤S4-步骤S6,直至收到停止加热或关机等命令。S6, adjust the operating power of the electric heater according to the ambient temperature change value within the preset time and the preset power meter, and repeat steps S4-S6 until receiving commands such as stopping heating or shutting down.

具体地,在本发明的一个实施例中,判断预设时间内的环境温度变化值是否大于第二预设温度;如果环境温度上升值大于第二预设温度,则将电暖器的运行功率下调一个等级,且下调后的运行功率所对应的功率补偿因子为第二预设补偿值,其中,第二预设补偿值小于第一预设补偿值;如果环境温度下降值大于第二预设温度,则将电暖器的运行功率上调一个等级,且上调后的运行功率所对应的功率补偿因子为第二预设补偿值;如果环境温度上升值小于等于第二预设温度,则将电暖器的运行功率下调一个等级,且下调后的运行功率所对应的功率补偿因子为第一预设补偿值;如果环境温度下降值小于等于第二预设温度,则将电暖器的运行功率上调一个等级,且上调后的运行功率所对应的功率补偿因子为第一预设补偿值。Specifically, in one embodiment of the present invention, it is judged whether the environmental temperature change value within the preset time is greater than the second preset temperature; if the ambient temperature rise value is greater than the second preset temperature, the operating power of the electric heater Down by one level, and the power compensation factor corresponding to the lowered operating power is the second preset compensation value, wherein the second preset compensation value is smaller than the first preset compensation value; if the ambient temperature drop value is greater than the second preset temperature, then increase the operating power of the electric heater by one level, and the power compensation factor corresponding to the increased operating power is the second preset compensation value; if the ambient temperature rise value is less than or equal to the second preset temperature, the electric heater The operating power of the heater is lowered by one level, and the power compensation factor corresponding to the lowered operating power is the first preset compensation value; if the ambient temperature drop is less than or equal to the second preset temperature, the operating power of the electric heater One level is increased, and the power compensation factor corresponding to the increased operating power is the first preset compensation value.

其中,第二预设温度取值为0.4~0.6℃,如可以是0.5℃。Wherein, the value of the second preset temperature is 0.4-0.6°C, for example, it may be 0.5°C.

在本发明的一个示例中,电暖器以功率等级3运行,且运行功率为0.3*Pm时,如果6s内的环境温度上升值为0.6℃大于0.5℃,则将电暖器的运行功率下调一个等级为功率等级2,且下调后的运行功率所对应的功率补偿因子为第二预设补偿值0.1,即调整后的运行功率为0.2*0.1*Pm。In an example of the present invention, when the electric heater is operated at power level 3, and the operating power is 0.3*Pm, if the ambient temperature rise within 6s is 0.6°C greater than 0.5°C, the operating power of the electric heater will be lowered One level is power level 2, and the power compensation factor corresponding to the reduced operating power is the second preset compensation value 0.1, that is, the adjusted operating power is 0.2*0.1*Pm.

进一步地,电暖器以功率0.2*0.1*Pm运行6s后,如果6s内的环境温度下降值值为0.3℃小于0.5℃,则将电暖器的运行功率上调一个等级为功率等级3,且下调后的运行功率所对应的功率补偿因子为第一预设补偿值1,即调整后的运行功率为0.3*1*Pm。Furthermore, after the electric heater runs for 6 seconds at a power of 0.2*0.1*Pm, if the ambient temperature drops within 6 seconds by 0.3°C and less than 0.5°C, the operating power of the electric heater is increased by one level to power level 3, and The power compensation factor corresponding to the reduced operating power is the first preset compensation value 1, that is, the adjusted operating power is 0.3*1*Pm.

为便于理解本发明实施例的电暖器的控制方法,可结合图5所示的具体示例进行说明。如图5所示,上述电暖器的控制方法包括以下步骤:In order to facilitate understanding of the control method of the electric heater in the embodiment of the present invention, it may be described in conjunction with the specific example shown in FIG. 5 . As shown in Figure 5, the control method for the electric heater includes the following steps:

S101,用户设置第一预设温度为Ts。S101, the user sets the first preset temperature as Ts.

S102,检测初始环境温度为T0。S102, detecting that the initial ambient temperature is T0.

S103,记录Ts和T0,并开启最高运行功率Pm加热t分钟,直至环境温度Ta=Ts。S103, record Ts and T0, and turn on the highest operating power Pm to heat for t minutes until the ambient temperature Ta=Ts.

即言,在执行完步骤S101和S102后,控制电暖器以最高运行功率(即第一预设功率)运行t分钟,直至环境温度Ta=Ts。That is, after steps S101 and S102 are executed, the electric heater is controlled to run at the highest operating power (ie, the first preset power) for t minutes until the ambient temperature Ta=Ts.

S104,计算环境温度上升速率Ka=(Ts-T0)/t。S104. Calculate the ambient temperature rise rate Ka=(Ts-T0)/t.

S105,根据Ka查表1,确定下一步的运行功率Px,此时设定功率补偿因子y为1。S105 , look up table 1 according to Ka, and determine the next operating power Px, and set the power compensation factor y as 1 at this time.

S106,判断Px是否大于等于0.5*Pm,若是,则执行步骤S107,若否,则执行步骤S108。S106, judging whether Px is greater than or equal to 0.5*Pm, if yes, execute step S107, if not, execute step S108.

S107,控制继电器处于闭合状态,并通过控制可控硅的通断时间调节电暖器的运行功率,以使电暖器以Px运行预设时间T。S107, the control relay is in a closed state, and the operating power of the electric heater is adjusted by controlling the on-off time of the thyristor, so that the electric heater operates at Px for a preset time T.

S108,控制继电器处于断开状态,并通过控制可控硅的通断时间调节电暖器的运行功率,以使电暖器以运行功率Px运行预设时间T。S108, the control relay is in the disconnected state, and the operating power of the electric heater is adjusted by controlling the on-off time of the thyristor, so that the electric heater operates at the operating power Px for a preset time T.

S109,判断环境温度Ta上升或下降是否超过0.5℃。若是,则执行步骤S110和S111;若否,则执行步骤S112和S113。S109, judging whether the ambient temperature Ta rises or falls by more than 0.5°C. If yes, execute steps S110 and S111; if not, execute steps S112 and S113.

S110,如果环境温度Ta上升,则将功率Px依表1下调1个等级,且y=0.1。S110, if the ambient temperature Ta rises, lower the power Px by one level according to Table 1, and y=0.1.

也就是说,在当前环境温度Ta的上升值超过第二预设温度0.5℃时,根据预设功率表控制电暖器的运行功率Px下调1个等级,其中,功率补偿因子为第二预设补偿值,即y=0.1。That is to say, when the rise of the current ambient temperature Ta exceeds the second preset temperature by 0.5°C, the operating power Px of the electric heater is controlled to be lowered by one level according to the preset power meter, wherein the power compensation factor is the second preset Compensation value, ie y=0.1.

S111,如果环境温度Ta下降,则将功率Px依表1上调1个等级,且y=0.1。S111, if the ambient temperature Ta drops, increase the power Px by one level according to Table 1, and y=0.1.

也就是说,在当前环境温度的下降值Ta超过第二预设温度0.5℃时,根据预设的功率表控制电暖器的运行功率Px上调1个等级,其中,功率补偿因子为第二预设补偿值,即y=0.1。That is to say, when the drop value Ta of the current ambient temperature exceeds the second preset temperature by 0.5°C, the operating power Px of the electric heater is controlled to increase by one level according to the preset power meter, wherein the power compensation factor is the second preset temperature. Set the compensation value, ie y=0.1.

S112,如果环境温度Ta上升,则将功率Px依表1上调1个等级,且y=1。S112, if the ambient temperature Ta rises, increase the power Px by one level according to Table 1, and y=1.

也就是说,在当前环境温度Ta的上升值不超过第二预设温度0.5℃时,根据预设功率表控制电暖器的运行功率Px下调1个等级,其中,功率补偿因子y为第一预设补偿值,即y=1。That is to say, when the rise of the current ambient temperature Ta does not exceed the second preset temperature by 0.5°C, the operating power Px of the electric heater is controlled to be lowered by one level according to the preset power meter, wherein the power compensation factor y is the first The compensation value is preset, that is, y=1.

S113,如果环境温度Ta下降,则将功率Px依表1上调1个等级,且y=1。S113, if the ambient temperature Ta drops, increase the power Px by one level according to Table 1, and y=1.

也就是说,在当前环境温度Ta的下降值不超过第二预设温度0.5℃时,根据预设功率表控制电暖器的运行功率Px上调1个等级,其中,功率补偿因子y为第一预设补偿值,即y=1。That is to say, when the drop value of the current ambient temperature Ta does not exceed the second preset temperature by 0.5°C, the operating power Px of the electric heater is controlled to increase by one level according to the preset power meter, wherein the power compensation factor y is the first The compensation value is preset, that is, y=1.

需要说明的是,在将功率Px上调或者下调后,返回步骤S106,如此循环,直至收到停止加热或关机等命令。It should be noted that, after the power Px is adjusted up or down, the process returns to step S106 and repeats like this until commands such as stopping heating or shutting down are received.

可以理解,电暖器的运行功率从0到Pm(如2000W)做无级变化,当环境温度接近用户设定的第一预设温度Ts,电暖器的运行功率就会随着环境温度上升速率Ka做出调整,Ka越大电暖器的运行功率越低,Ka越小电暖器的运行功率越高,从而实现温度的稳定,温升变化无限接近为零。It can be understood that the operating power of the electric heater changes steplessly from 0 to Pm (such as 2000W). When the ambient temperature is close to the first preset temperature Ts set by the user, the operating power of the electric heater will increase with the ambient temperature. The rate Ka is adjusted, the larger the Ka, the lower the operating power of the electric heater, and the smaller the Ka, the higher the operating power of the electric heater, so as to achieve temperature stability, and the temperature rise is infinitely close to zero.

进一步地,通过计算温度上升值/下降值,将功率无级变化调整,逐步找到加热功率和热损耗的平衡点,即环境温度变化很小,使环境温度和第一预设温度逐渐融合成一条直线,逐渐缩小了第一预设温度和环境温度之间的差异。由此,让环境温度始终在用户设定的第一预设温度Ts很小的范围内工作,实现智能恒温,从而消除了热惯性带来的能量浪费,以减少功耗,达到节能的目的。Further, by calculating the temperature rise/fall value, the power is adjusted steplessly, and the balance point of heating power and heat loss is gradually found, that is, the ambient temperature changes very little, so that the ambient temperature and the first preset temperature gradually merge into one A straight line gradually narrows the difference between the first preset temperature and the ambient temperature. As a result, the ambient temperature is always kept within a small range of the first preset temperature Ts set by the user, realizing intelligent constant temperature, thereby eliminating energy waste caused by thermal inertia, reducing power consumption, and achieving the purpose of energy saving.

并且,通过继电器的断开或通断以及可控硅的通断时间控制电暖器以获得的或调整后的运行功率运行,避免了继电器的频繁断开和闭合,延长了继电器的电气寿命。Moreover, by controlling the electric heater to operate at the obtained or adjusted operating power through the disconnection or on-off of the relay and the on-off time of the thyristor, the frequent disconnection and closure of the relay is avoided, and the electrical life of the relay is prolonged.

综上,根据本发明实施例的电暖器的控制方法,通过实时检测环境温度,并根据当前环境温度的变化情况实时调整电暖器的运行功率,通过继电器的通断和可控硅的通断时间使电暖器以调整的运行功率运行,从而使电暖器智能恒温加热,避免了继电器的不停闭合和断开,延长了继电器的电气寿命,减少了噪音,并且还减小了功耗,节能环保,增加了用户对恒温要求的舒适体验。To sum up, according to the control method of the electric heater according to the embodiment of the present invention, the ambient temperature is detected in real time, and the operating power of the electric heater is adjusted in real time according to the change of the current ambient temperature. The off time makes the electric heater run at the adjusted operating power, so that the electric heater can be intelligently heated at a constant temperature, avoiding the continuous closing and opening of the relay, prolonging the electrical life of the relay, reducing noise, and also reducing power consumption. Energy consumption, energy saving and environmental protection, increase the user's comfort experience for constant temperature requirements.

基于上述实施例,本发明提出了一种非临时性计算机可读存储介质。Based on the above embodiments, the present invention proposes a non-transitory computer-readable storage medium.

在本发明的实施例中,该非临时性计算机可读存储介质上存储有计算机程序,计算机程序被处理器执行时实现上述实施例的电暖器的控制方法。In an embodiment of the present invention, a computer program is stored on the non-transitory computer-readable storage medium, and when the computer program is executed by a processor, the method for controlling the electric heater in the above-mentioned embodiment is implemented.

根据本发明实施例的非临时性计算机可读存储介质,使电暖器执行该介质上存储的计算机程序时,能够使电暖器恒温加热,避免了继电器的频繁闭合和断开,延长了继电器的电气寿命,减少了噪音,并且还减小了功耗,节能环保,增加了用户对恒温要求的舒适体验。According to the non-transitory computer-readable storage medium in the embodiment of the present invention, when the electric heater executes the computer program stored on the medium, the electric heater can be heated at a constant temperature, avoiding the frequent closing and opening of the relay, and prolonging the delay time of the relay. Long electrical life, reduced noise, and also reduced power consumption, energy saving and environmental protection, increasing the user's comfort experience for constant temperature requirements.

图6是根据本发明实施例的电暖器的控制系统的结构示意图。Fig. 6 is a schematic structural diagram of a control system of an electric heater according to an embodiment of the present invention.

在本发明的实施例中,电暖器包括并联连接的可控硅和继电器。In an embodiment of the invention, the electric heater includes a thyristor and a relay connected in parallel.

如图6所示,电暖器的控制系统包括;加热模块10、检测模块20、控制模块30和无级变功模块40。As shown in FIG. 6 , the control system of the electric heater includes: a heating module 10 , a detection module 20 , a control module 30 and a stepless power conversion module 40 .

其中,检测模块20用于实时检测电暖器所处环境的环境温度及加热模块10的加热时间。控制模块30用于在电暖器开始运行时,控制电暖器以第一预设功率运行第一时间,直至环境温度达到第一预设温度,计算第一时间内的环境温度上升速率,并根据环境温度上升速率调用预设功率表以获得电暖器的运行功率,其中,在预设的功率表中,环境温度上升速率与电暖器运行功率一一对应。无级变功模块40用于根据获取的电暖器的运行功率控制继电器的关断或闭合,以及控制可控硅的通断时间,以使电暖器以运行功率运行。Wherein, the detection module 20 is used for real-time detection of the ambient temperature of the environment where the electric heater is located and the heating time of the heating module 10 . The control module 30 is used to control the electric heater to run at the first preset power for the first time when the electric heater starts to operate until the ambient temperature reaches the first preset temperature, calculate the rate of increase of the ambient temperature within the first time, and The preset power table is invoked according to the rising rate of the ambient temperature to obtain the operating power of the electric heater, wherein, in the preset power table, the rising rate of the ambient temperature corresponds to the operating power of the electric heater. The stepless power conversion module 40 is used to control the closing or closing of the relay according to the obtained operating power of the electric heater, and control the on-off time of the thyristor, so that the electric heater operates at the operating power.

具体地,在本发明的一个实施例中,控制模块30根据环境温度上升速率调用预设功率表以获得电暖器的运行功率时,获得的电暖器的运行功率所对应的功率补偿因子为第一预设补偿值。Specifically, in one embodiment of the present invention, when the control module 30 invokes the preset power table to obtain the operating power of the electric heater according to the rate of increase of the ambient temperature, the power compensation factor corresponding to the obtained operating power of the electric heater is The first preset compensation value.

无级变功模块40具体用于判断运行功率是否大于等于第二预设功率,如果运行功率大于等于第二预设功率,则控制继电器处于闭合状态,并通过控制可控硅的通断时间调节电暖器的运行功率,以使电暖器以所述运行功率运行;如果运行功率小于第二预设功率,则控制继电器处于断开状态,并通过控制可控硅的通断时间调节电暖器的运行功率,以使电暖器以所述运行功率运行。The stepless power conversion module 40 is specifically used to judge whether the operating power is greater than or equal to the second preset power. If the operating power is greater than or equal to the second preset power, the control relay is in a closed state, and is adjusted by controlling the on-off time of the thyristor. The operating power of the electric heater, so that the electric heater operates at the operating power; if the operating power is less than the second preset power, the control relay is in the disconnected state, and the electric heating is adjusted by controlling the on-off time of the thyristor. The operating power of the heater, so that the electric heater operates at the operating power.

进一步地,在本发明的一个实施例中,控制模块30还用于重复执行步骤:控制电暖器以获取的运行功率运行预设时间,根据预设时间内的环境温度变化值和预设功率表调整电暖器的运行功率。其中,无级变功模块40还用于在每次调整运行功率时,控制继电器的关断或闭合,以及控制可控硅的通断时间,以使电暖器以调整后的运行功率运行。Further, in one embodiment of the present invention, the control module 30 is also used to repeat the steps of: controlling the electric heater to run for a preset time with the obtained operating power, and according to the ambient temperature change value and the preset power within the preset time The table adjusts the operating power of the electric heater. Wherein, the stepless power conversion module 40 is also used to control the switching off or closing of the relay and the on-off time of the thyristor each time the operating power is adjusted, so that the electric heater operates at the adjusted operating power.

在本发明的一个实施例中,预设功率表为环境温度上升速率区间-电暖器运行功率-功率等级一一对应表,电暖器的运行功率通过以下公式(2)计算得到:In one embodiment of the present invention, the preset power table is a one-to-one correspondence table of ambient temperature rise rate interval-electric heater operating power-power level, and the operating power of the electric heater is calculated by the following formula (2):

Px=L*D*y*Pm (2)Px=L*D*y*Pm (2)

其中,Px为电暖器的运行功率,L为第一预设参数,D为功率等级,且D为大于等于0的整数,y为功率补偿因子,Pm为第一预设功率。Wherein, Px is the operating power of the electric heater, L is the first preset parameter, D is the power level, and D is an integer greater than or equal to 0, y is the power compensation factor, and Pm is the first preset power.

具体地,控制模块30在根据预设时间内的环境温度变化值和预设功率表调整电暖器的运行功率时,具体用于:判断预设时间内的环境温度的变化值是否大于第二预设温度;如果环境温度上升值大于第二预设温度,则将电暖器的运行功率下调一个等级,且下调后的运行功率所对应的功率补偿因子为第二预设补偿值,其中,第二预设补偿值小于第一预设补偿值;如果环境温度下降值大于第二预设温度,则将电暖器的运行功率上调一个等级,且上调后的运行功率所对应的功率补偿因子为第二预设补偿值;如果环境温度上升值小于等于第二预设温度,则将电暖器的运行功率下调一个等级,且下调后的运行功率所对应的功率补偿因子为第一预设补偿值;如果环境温度下降值小于等于第二预设温度,则将电暖器的运行功率上调一个等级,且上调后的运行功率所对应的功率补偿因子为第一预设补偿值。Specifically, when the control module 30 adjusts the operating power of the electric heater according to the change value of the ambient temperature within the preset time and the preset power meter, it is specifically used to: determine whether the change value of the ambient temperature within the preset time is greater than the second preset temperature; if the ambient temperature rise value is greater than the second preset temperature, the operating power of the electric heater is lowered by one level, and the power compensation factor corresponding to the lowered operating power is the second preset compensation value, wherein, The second preset compensation value is less than the first preset compensation value; if the ambient temperature drop value is greater than the second preset temperature, the operating power of the electric heater is increased by one level, and the power compensation factor corresponding to the increased operating power is the second preset compensation value; if the ambient temperature rise value is less than or equal to the second preset temperature, the operating power of the electric heater is lowered by one level, and the power compensation factor corresponding to the lowered operating power is the first preset Compensation value; if the ambient temperature drop value is less than or equal to the second preset temperature, the operating power of the electric heater is increased by one level, and the power compensation factor corresponding to the increased operating power is the first preset compensation value.

需要说明的是,本发明实施例的电暖器的控制系统的具体实施方式可参见本发明上述实施例的电暖器的控制方法的具体实施方式,为减少冗余,此处不做赘述。It should be noted that, for the specific implementation manners of the control system of the electric heater in the embodiment of the present invention, reference may be made to the specific implementation manners of the control method of the electric heater in the foregoing embodiments of the present invention. To reduce redundancy, details are not repeated here.

根据本发明实施例的电暖器的控制系统,通过实时检测环境温度,并根据当前环境温度的变化情况实时调整电暖器的运行功率,通过继电器的通断和可控硅的通断时间使电暖器以调整的运行功率运行,从而使电暖器智能恒温加热,避免了继电器的不停闭合和断开,延长了继电器的电气寿命,减少了噪音,并且还减小了功耗,节能环保,增加了用户对恒温要求的舒适体验。According to the control system of the electric heater in the embodiment of the present invention, by detecting the ambient temperature in real time, and adjusting the operating power of the electric heater in real time according to the change of the current ambient temperature, the on-off time of the relay and the thyristor is used to make the The electric heater operates at the adjusted operating power, so that the electric heater can be intelligently heated at a constant temperature, avoiding the continuous closing and opening of the relay, prolonging the electrical life of the relay, reducing noise, and reducing power consumption, saving energy Environmental protection, increasing the user's comfort experience for constant temperature requirements.

进一步地,本发明提出了一种电暖器。Further, the present invention provides an electric heater.

图7是根据本发明实施例的电暖器的结构示意图。如图7所示,该电暖器1000包括上述实施例的电暖器的控制系统及并联连接的可控硅200和继电器300。Fig. 7 is a schematic structural diagram of an electric heater according to an embodiment of the present invention. As shown in FIG. 7 , the electric heater 1000 includes the control system of the electric heater of the above-mentioned embodiment, a thyristor 200 and a relay 300 connected in parallel.

本发明实施例的电暖器,采用上述实施例的电暖器的控制系统,通过实时检测环境温度,并根据当前环境温度的变化情况实时调整电暖器的运行功率,通过继电器的通断和可控硅的通断时间使电暖器以调整的运行功率运行,从而使电暖器智能恒温加热,避免了继电器的不停闭合和断开,延长了继电器的电气寿命,减少了噪音,并且还减小了功耗,节能环保,增加了用户对恒温要求的舒适体验。The electric heater in the embodiment of the present invention adopts the control system of the electric heater in the above embodiment, detects the ambient temperature in real time, and adjusts the operating power of the electric heater in real time according to the change of the current ambient temperature. The on-off time of the thyristor makes the electric heater run at the adjusted operating power, so that the electric heater can be intelligently heated at a constant temperature, avoiding the continuous closing and opening of the relay, prolonging the electrical life of the relay, reducing noise, and It also reduces power consumption, saves energy and protects the environment, and increases the user's comfort experience for constant temperature requirements.

另外,本发明实施例的电暖器的其他构成及作用对本领域的技术人员来说是已知的,为减少冗余,此处不做赘述。In addition, other configurations and functions of the electric heater in the embodiment of the present invention are known to those skilled in the art, and will not be repeated here to reduce redundancy.

需要说明的是,在流程图中表示或在此以其他方式描述的逻辑和/或步骤,例如,可以被认为是用于实现逻辑功能的可执行指令的定序列表,可以具体实现在任何计算机可读介质中,以供指令执行系统、装置或设备(如基于计算机的系统、包括处理器的系统或其他可以从指令执行系统、装置或设备取指令并执行指令的系统)使用,或结合这些指令执行系统、装置或设备而使用。就本说明书而言,"计算机可读介质"可以是任何可以包含、存储、通信、传播或传输程序以供指令执行系统、装置或设备或结合这些指令执行系统、装置或设备而使用的装置。计算机可读介质的更具体的示例(非穷尽性列表)包括以下:具有一个或多个布线的电连接部(电子装置),便携式计算机盘盒(磁装置),随机存取存储器(RAM),只读存储器(ROM),可擦除可编辑只读存储器(EPROM或闪速存储器),光纤装置,以及便携式光盘只读存储器(CDROM)。另外,计算机可读介质甚至可以是可在其上打印所述程序的纸或其他合适的介质,因为可以例如通过对纸或其他介质进行光学扫描,接着进行编辑、解译或必要时以其他合适方式进行处理来以电子方式获得所述程序,然后将其存储在计算机存储器中。It should be noted that the logic and/or steps shown in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, apparatus, or device and execute instructions), or in combination with these Instructions are used to execute systems, devices, or equipment. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate or transmit a program for use in or in conjunction with an instruction execution system, device or device. More specific examples (non-exhaustive list) of computer-readable media include the following: electrical connection with one or more wires (electronic device), portable computer disk case (magnetic device), random access memory (RAM), Read Only Memory (ROM), Erasable and Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, since the program can be read, for example, by optically scanning the paper or other medium, followed by editing, interpretation or other suitable processing if necessary. The program is processed electronically and stored in computer memory.

应当理解,本发明的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中,多个步骤或方法可以用存储在存储器中且由合适的指令执行系统执行的软件或固件来实现。例如,如果用硬件来实现,和在另一实施方式中一样,可用本领域公知的下列技术中的任一项或他们的组合来实现:具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路,具有合适的组合逻辑门电路的专用集成电路,可编程门阵列(PGA),现场可编程门阵列(FPGA)等。It should be understood that various parts of the present invention can be realized by hardware, software, firmware or their combination. In the embodiments described above, various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques known in the art: Discrete logic circuits, ASICs with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

在本发明的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的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。In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and therefore should not be construed as limiting the invention.

此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中,“多个”的含义是至少两个,例如两个,三个等,除非另有明确具体的限定。In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless specifically defined otherwise.

在本发明中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系,除非另有明确的限定。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

在本发明中,除非另有明确的规定和限定,第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触,或第一和第二特征通过中间媒介间接接触。而且,第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方,或仅仅表示第一特征水平高度小于第二特征。In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature indirectly through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

尽管上面已经示出和描述了本发明的实施例,可以理解的是,上述实施例是示例性的,不能理解为对本发明的限制,本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (14)

1.一种电暖器的控制方法,其特征在于,电暖器包括并联连接的可控硅和继电器,所述方法包括以下步骤:1. A control method for an electric heater, characterized in that the electric heater comprises a thyristor and a relay connected in parallel, and the method comprises the following steps: S1,在所述电暖器开始运行时,实时检测所述电暖器所处环境的环境温度;S1, when the electric heater starts to run, detect the ambient temperature of the environment where the electric heater is located in real time; S2,控制所述电暖器以第一预设功率运行第一时间,直至当前环境温度达到第一预设温度;S2. Control the electric heater to run at a first preset power for a first time until the current ambient temperature reaches the first preset temperature; S3,计算所述第一时间内的环境温度上升速率,并根据所述环境温度上升速率调用预设功率表以获得所述电暖器的运行功率,其中,在所述预设功率表中,环境温度上升速率与电暖器运行功率呈一一对应关系;S3. Calculate the ambient temperature rise rate within the first time period, and call a preset power table according to the ambient temperature rise rate to obtain the operating power of the electric heater, wherein, in the preset power table, There is a one-to-one correspondence between the rate of ambient temperature rise and the operating power of the electric heater; S4,根据所述运行功率控制所述继电器的关断或闭合,以及控制所述可控硅的通断时间,以使所述电暖器以所述运行功率运行。S4. Control the relay to be turned off or on according to the operating power, and control the on-off time of the thyristor, so that the electric heater operates at the operating power. 2.如权利要求1所述的电暖器的控制方法,其特征在于,还包括以下步骤:2. The control method of an electric heater as claimed in claim 1, further comprising the following steps: S5,控制所述电暖器以所述运行功率运行预设时间;S5, controlling the electric heater to run at the operating power for a preset time; S6,根据所述预设时间内的环境温度变化值和所述预设功率表调整所述电暖器的运行功率,并重复步骤S4-步骤S6。S6. Adjust the operating power of the electric heater according to the change value of the ambient temperature within the preset time and the preset power meter, and repeat steps S4-S6. 3.如权利要求2所述的电暖器的控制方法,其特征在于,所述预设功率表为环境温度上升速率区间-电暖器运行功率-功率等级一一对应表,所述电暖器的运行功率通过以下公式计算得到:3. The control method of an electric heater according to claim 2, characterized in that, the preset power table is a one-to-one correspondence table of ambient temperature rise rate interval-electric heater operating power-power level, and the electric heater The operating power of the inverter is calculated by the following formula: Px=L*D*y*Pm,Px=L*D*y*Pm, 其中,Px为所述电暖器的运行功率,L为第一预设参数,D为所述功率等级,且D为大于等于0的整数,y为功率补偿因子,Pm为所述第一预设功率。Wherein, Px is the operating power of the electric heater, L is the first preset parameter, D is the power level, and D is an integer greater than or equal to 0, y is the power compensation factor, and Pm is the first preset parameter. Set power. 4.如权利要求3所述的电暖器的控制方法,其特征在于,在所述步骤S3中,所述运行功率所对应的功率补偿因子为第一预设补偿值。4. The control method of an electric heater according to claim 3, characterized in that, in the step S3, the power compensation factor corresponding to the operating power is a first preset compensation value. 5.如权利要求2所述的电暖器的控制方法,其特征在于,在所述步骤S4中,还包括:5. The control method of the electric heater according to claim 2, characterized in that, in the step S4, further comprising: 判断获得的运行功率是否大于等于第二预设功率;judging whether the obtained operating power is greater than or equal to the second preset power; 如果所述运行功率大于等于所述第二预设功率,则控制所述继电器处于闭合状态,并通过控制所述可控硅的通断时间调节所述电暖器的运行功率,以使所述电暖器以所述运行功率运行;If the operating power is greater than or equal to the second preset power, the relay is controlled to be in a closed state, and the operating power of the electric heater is adjusted by controlling the on-off time of the thyristor, so that the The electric heater operates at the stated operating power; 如果所述运行功率小于所述第二预设功率,则控制所述继电器处于断开状态,并通过控制所述可控硅的通断时间调节所述电暖器的运行功率,以使所述电暖器以运行功率运行。If the operating power is less than the second preset power, control the relay to be in an off state, and adjust the operating power of the electric heater by controlling the on-off time of the thyristor, so that the The heater operates at operating power. 6.如权利要求4所述的电暖器的控制方法,其特征在于,在所述步骤S6中,还包括:6. The control method of the electric heater according to claim 4, characterized in that, in the step S6, further comprising: 判断所述预设时间内的环境温度变化值是否大于第二预设温度;judging whether the ambient temperature change value within the preset time is greater than a second preset temperature; 如果环境温度上升值大于所述第二预设温度,则将所述电暖器的运行功率下调一个等级,且下调后的运行功率所对应的功率补偿因子为第二预设补偿值,其中,所述第二预设补偿值小于所述第一预设补偿值;If the ambient temperature rise value is greater than the second preset temperature, the operating power of the electric heater is lowered by one level, and the power compensation factor corresponding to the lowered operating power is the second preset compensation value, wherein, The second preset compensation value is smaller than the first preset compensation value; 如果环境温度下降值大于所述第二预设温度,则将所述电暖器的运行功率上调一个等级,且上调后的运行功率所对应的功率补偿因子为所述第二预设补偿值;If the drop in ambient temperature is greater than the second preset temperature, the operating power of the electric heater is increased by one level, and the power compensation factor corresponding to the increased operating power is the second preset compensation value; 如果环境温度上升值小于等于所述第二预设温度,则将所述电暖器的运行功率下调一个等级,且下调后的运行功率所对应的功率补偿因子为所述第一预设补偿值;If the ambient temperature rise value is less than or equal to the second preset temperature, the operating power of the electric heater is lowered by one level, and the power compensation factor corresponding to the lowered operating power is the first preset compensation value ; 如果环境温度下降值小于等于所述第二预设温度,则将所述电暖器的运行功率上调一个等级,且上调后的运行功率所对应的功率补偿因子为所述第一预设补偿值。If the drop in ambient temperature is less than or equal to the second preset temperature, the operating power of the electric heater is increased by one level, and the power compensation factor corresponding to the increased operating power is the first preset compensation value . 7.一种非临时性计算机可读存储介质,其上存储有计算机程序,其特征在于,所述计算机程序被处理器执行时实现如权利要求1-6中任一项所述的电暖器的控制方法。7. A non-transitory computer-readable storage medium, on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the electric heater according to any one of claims 1-6 is realized control method. 8.一种电暖器的控制系统,其特征在于,电暖器包括并联连接的可控硅和继电器,所述控制系统包括;8. A control system for an electric heater, characterized in that the electric heater includes thyristors and relays connected in parallel, and the control system includes; 加热模块;heating module; 检测模块,用于实时检测所述电暖器所处环境的环境温度及所述加热模块的加热时间;A detection module, configured to detect in real time the ambient temperature of the environment where the electric heater is located and the heating time of the heating module; 控制模块,用于在所述电暖器开始运行时,控制所述电暖器以第一预设功率运行第一时间,直至当前环境温度达到第一预设温度,计算所述第一时间内的环境温度上升速率,并根据所述环境温度上升速率调用预设功率表以获得所述电暖器的运行功率,其中,在所述预设功率表中,环境温度上升速率与电暖器运行功率一一对应;A control module, configured to control the electric heater to operate at a first preset power for a first time when the electric heater starts to operate until the current ambient temperature reaches the first preset temperature, and calculate the first time The ambient temperature rise rate, and call the preset power table according to the ambient temperature rise rate to obtain the operating power of the electric heater, wherein, in the preset power table, the ambient temperature rise rate is related to the operation of the electric heater Power one-to-one correspondence; 无级变功模块,用于根据所述运行功率控制所述继电器的关断或闭合,以及控制所述可控硅的通断时间,以使所述电暖器以所述运行功率运行。The stepless power conversion module is used to control the closing or closing of the relay according to the operating power, and control the on-off time of the thyristor, so that the electric heater operates at the operating power. 9.如权利要求8所述的电暖器的控制系统,其特征在于,所述控制模块还用于重复执行以下步骤:9. The control system of an electric heater according to claim 8, wherein the control module is further configured to repeatedly perform the following steps: 控制所述电暖器以所述运行功率运行预设时间;controlling the electric heater to run at the operating power for a preset time; 根据所述预设时间内的环境温度变化值和所述预设功率表调整所述电暖器的运行功率;Adjusting the operating power of the electric heater according to the ambient temperature change value within the preset time and the preset power meter; 其中,所述无级变功模块,还用于在每次调整运行功率时,控制所述继电器的关断或闭合,以及控制所述可控硅的通断时间,以使所述电暖器以调整后的运行功率运行。Wherein, the stepless power conversion module is also used to control the closing or closing of the relay and control the on-off time of the silicon controlled rectifier each time the operating power is adjusted, so that the electric heater Run at adjusted operating power. 10.如权利要求9所述的电暖器的控制系统,其特征在于,所述预设功率表为环境温度上升速率区间-电暖器运行功率-功率等级一一对应表,所述电暖器的运行功率通过以下公式计算得到:10. The control system of an electric heater according to claim 9, wherein the preset power table is a one-to-one correspondence table between the range of ambient temperature rise rate-the operating power of the electric heater-power level, and the electric heater The operating power of the inverter is calculated by the following formula: Px=L*D*y*Pm,Px=L*D*y*Pm, 其中,Px为所述电暖器的运行功率,L为第一预设参数,D为所述功率等级,且D为大于等于0的整数,y为功率补偿因子,Pm为所述第一预设功率。Wherein, Px is the operating power of the electric heater, L is the first preset parameter, D is the power level, and D is an integer greater than or equal to 0, y is the power compensation factor, and Pm is the first preset parameter. Set power. 11.如权利要求10所述的电暖器的控制系统,其特征在于,所述控制模块根据所述环境温度上升速率调用预设功率表以获得所述电暖器的运行功率时,获得的所述电暖器的运行功率所对应的功率补偿因子为第一预设补偿值。11. The control system of the electric heater according to claim 10, characterized in that, when the control module invokes a preset power meter according to the rate of increase of the ambient temperature to obtain the operating power of the electric heater, the obtained The power compensation factor corresponding to the operating power of the electric heater is a first preset compensation value. 12.如权利要求9所述的电暖器的控制系统,其特征在于,所述无级变功模块具体用于:12. The control system of an electric heater according to claim 9, wherein the stepless power conversion module is specifically used for: 判断所述运行功率是否大于等于第二预设功率;judging whether the operating power is greater than or equal to a second preset power; 如果所述运行功率大于等于所述第二预设功率,则控制所述继电器处于闭合状态,并通过控制所述可控硅的通断时间调节所述电暖器的运行功率,以使所述电暖器以所述运行功率运行;If the operating power is greater than or equal to the second preset power, the relay is controlled to be in a closed state, and the operating power of the electric heater is adjusted by controlling the on-off time of the thyristor, so that the The electric heater operates at the stated operating power; 如果所述运行功率小于所述第二预设功率,则控制所述继电器处于断开状态,并通过控制所述可控硅的通断时间调节所述电暖器的运行功率,以使所述电暖器以所述运行功率运行。If the operating power is less than the second preset power, control the relay to be in an off state, and adjust the operating power of the electric heater by controlling the on-off time of the thyristor, so that the The electric heater operates at the stated operating power. 13.如权利要求11所述的电暖器的控制系统,其特征在于,所述控制模块在根据所述预设时间内的环境温度变化值和所述预设功率表调整所述电暖器的运行功率时,具体用于:13. The control system of an electric heater according to claim 11, wherein the control module adjusts the electric heater according to the ambient temperature change value within the preset time and the preset power meter When the operating power is used, it is specifically used for: 判断所述预设时间内的环境温度变化值是否大于第二预设温度;judging whether the ambient temperature change value within the preset time is greater than a second preset temperature; 如果环境温度上升值大于所述第二预设温度,则将所述电暖器的运行功率下调一个等级,且下调后的运行功率所对应的功率补偿因子为第二预设补偿值,其中,所述第二预设补偿值小于所述第一预设补偿值;If the ambient temperature rise value is greater than the second preset temperature, the operating power of the electric heater is lowered by one level, and the power compensation factor corresponding to the lowered operating power is the second preset compensation value, wherein, The second preset compensation value is smaller than the first preset compensation value; 如果环境温度下降值大于所述第二预设温度,则将所述电暖器的运行功率上调一个等级,且上调后的运行功率所对应的功率补偿因子为所述第二预设补偿值;If the drop in ambient temperature is greater than the second preset temperature, the operating power of the electric heater is increased by one level, and the power compensation factor corresponding to the increased operating power is the second preset compensation value; 如果环境温度上升值小于等于所述第二预设温度,则将所述电暖器的运行功率下调一个等级,且下调后的运行功率所对应的功率补偿因子为所述第一预设补偿值;If the ambient temperature rise value is less than or equal to the second preset temperature, the operating power of the electric heater is lowered by one level, and the power compensation factor corresponding to the lowered operating power is the first preset compensation value ; 如果环境温度下降值小于等于所述第二预设温度,则将所述电暖器的运行功率上调一个等级,且上调后的运行功率所对应的功率补偿因子为所述第一预设补偿值。If the drop in ambient temperature is less than or equal to the second preset temperature, the operating power of the electric heater is increased by one level, and the power compensation factor corresponding to the increased operating power is the first preset compensation value . 14.一种电暖器,其特征在于,包括:14. An electric heater, characterized in that it comprises: 并联连接的可控硅和继电器;SCRs and relays connected in parallel; 如权利要求8-13中任一项所述的电暖器的控制系统。The control system of the electric heater according to any one of claims 8-13.
CN201710507518.8A 2017-06-28 2017-06-28 Electric heater and control method and system thereof Pending CN107238125A (en)

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