WO2010094215A1 - 一种供电控制装置及其应用的通风换气装置 - Google Patents

一种供电控制装置及其应用的通风换气装置 Download PDF

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Publication number
WO2010094215A1
WO2010094215A1 PCT/CN2010/070236 CN2010070236W WO2010094215A1 WO 2010094215 A1 WO2010094215 A1 WO 2010094215A1 CN 2010070236 W CN2010070236 W CN 2010070236W WO 2010094215 A1 WO2010094215 A1 WO 2010094215A1
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Prior art keywords
power supply
circuit
supply unit
switching
solar
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PCT/CN2010/070236
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English (en)
French (fr)
Inventor
赵勇
Original Assignee
中山大洋电机制造有限公司
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Publication date
Application filed by 中山大洋电机制造有限公司 filed Critical 中山大洋电机制造有限公司
Priority to CA2753456A priority Critical patent/CA2753456C/en
Priority to MX2011008862A priority patent/MX2011008862A/es
Publication of WO2010094215A1 publication Critical patent/WO2010094215A1/zh
Priority to US13/210,397 priority patent/US8914161B2/en

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies

Definitions

  • the utility model relates to a power supply control device and a ventilation and ventilation device thereof.
  • the purpose of the utility model is to provide a power supply control device, which is energy-saving and environmentally friendly, has a simple structure, low power consumption cost, and is safer and more reliable.
  • the power supply control device of the present invention is realized by the following technical solutions.
  • a power supply control device includes a power supply and a switching control system.
  • the power supply includes a solar power supply unit and a power supply unit. Under normal circumstances, the solar power supply unit supplies power to the outside. When the light is insufficient and the solar power supply unit is insufficiently powered,
  • the switching control system is connected to the grid power supply unit, and the grid power supply unit supplies power to the outside.
  • the solar power supply unit includes a solar battery and a DC-DC boost circuit, and the output end of the solar battery is connected to the input end of the DC-DC boost circuit. The output of the DC-DC boost circuit is externally powered.
  • the power supply unit of the grid includes an AC-DC rectifier circuit. The AC input of the power grid is connected to the input of the AC-DC rectifier circuit, and the output of the AC-DC rectifier circuit is the external power supply.
  • the switching control system described above comprises a detecting circuit, a controller and a switching circuit
  • the controller may be a microprocessor
  • the switching circuit mainly comprises an output connected to the output of the AC-DC rectifier circuit and the DC-DC liter respectively.
  • the switching element at the output end of the voltage circuit detects the voltage signal of the solar power supply unit and inputs it to the controller.
  • the controller outputs a control signal to the switching circuit according to the voltage condition output by the solar power supply unit, and the unit supplies power to the outside.
  • the switching control system described above further includes a real clock circuit.
  • the output end of the real clock circuit is connected to the input end of the controller.
  • the controller outputs a control signal to the switching circuit according to the real clock time, and controls the external power supply.
  • the power supply control device of the utility model has the following advantages: 1) Under normal circumstances, the solar power supply unit supplies power to the outside, which is relatively energy-saving and environmentally friendly, and has low power consumption; 2) when the light is insufficient, the solar power supply unit supplies power. In case of insufficient, the switching control system is connected to the grid power supply unit, and the grid power supply unit supplies power to the outside to ensure safe and reliable power supply; 3)
  • the circuit structure is simple, the switching control system, the solar power supply unit and the grid power supply unit structure are very simple. Easy to implement and low manufacturing cost.
  • Another object of the present invention is to provide a ventilation and ventilation device which is low in cost, energy-saving and environmentally friendly, and safe and reliable in power supply.
  • the ventilation and ventilation device of the present invention is realized by the following technical solutions.
  • the utility model relates to a ventilation ventilation device, which comprises a fan system and a power supply control device, characterized in that: the power supply control device comprises a power supply and a switching control system, and the power supply comprises a solar power supply unit and a grid power supply unit, and the solar power supply unit is normally The fan system supplies power.
  • the switching control system is connected to the grid power supply unit, and the grid power supply unit supplies power to the fan system.
  • the solar power supply unit includes the solar battery and the DC-DC boost circuit.
  • the output end of the solar cell is connected to the input end of the DC-DC boost circuit, the output end of the DC-DC boost circuit is powered by the fan system, the grid power supply unit includes an AC-DC rectifier circuit, and the grid AC input is connected to the AC-DC rectifier. At the input of the circuit, the output of the AC-DC rectifier circuit supplies power to the fan system.
  • the switching control system described above comprises a detecting circuit, a controller and a switching circuit
  • the controller may be a microprocessor, and the switching circuit mainly comprises an output connected to the output of the AC-DC rectifier circuit and the DC-DC liter respectively.
  • the switching element at the output end of the voltage circuit detects the voltage signal of the solar power supply unit and inputs it to the controller.
  • the controller outputs a control signal to the switching circuit according to the voltage condition output by the solar power supply unit, and the unit supplies power to the fan system.
  • the switching control system described above further includes a real clock circuit.
  • the output end of the real clock circuit is connected to the input end of the controller.
  • the controller outputs a control signal to the switching circuit according to the real clock time, and supplies power through the fan control system.
  • the controller described above may be a single-chip MCU, and the switching circuit may be a relay switching circuit.
  • the controller described above may be a single-chip MCU and a photoelectrically coupled driving circuit, and the switching circuit may be a thyristor switch.
  • the controller described above can be coupled to the fan system to control the operation of the fan system and receive feedback on the operating status of the fan system.
  • the ventilation and ventilation device of the utility model has the following advantages and technical effects: 1) Integrating solar energy and grid power, energy saving and environmental protection, reducing the economic cost of use, and solving the limitation of the single energy control fan 2) Solar energy and grid power can work separately, and the fan system can realize the switching drive to control the fan operation. The intelligence is higher, the power supply is safe and reliable, and the long-term operation of the fan can be ensured to meet the needs of users.
  • Figure 1 is a block diagram of the circuit of the present invention.
  • Figure 2 is a circuit diagram of an implementation of Figure 1;
  • Fig. 3 is another circuit diagram of the implementation of Fig. 1.
  • a ventilation and ventilation device includes a fan system and a power supply control device, and the power supply control device includes a power supply and a switching control system, and the power supply includes a solar power supply unit and a power grid.
  • the power supply unit under normal circumstances, is powered by the solar power supply unit for the fan system.
  • the switching control system is connected to the grid power supply unit, and the power supply unit supplies power to the fan system.
  • the solar power supply unit comprises a solar cell and a DC-DC boost circuit.
  • the output end of the solar cell is connected to the input end of the DC-DC boost circuit, and the output end of the DC-DC boost circuit supplies power to the fan system.
  • the grid power supply unit comprises an AC-DC rectifier circuit, the grid AC input is connected to the input end of the AC-DC rectifier circuit, and the output end of the AC-DC rectifier circuit supplies power to the fan system.
  • the switching control system comprises a detecting circuit, a real clock circuit, a controller and a switching circuit
  • the controller may be a microprocessor, and the switching circuit mainly comprises an output connected to the output of the AC-DC rectifier circuit and the output of the DC-DC boosting circuit, respectively.
  • the switching element of the terminal detects the voltage signal of the solar power supply unit and inputs it to the controller.
  • the controller outputs a control signal to the switching circuit according to the voltage condition output by the solar power supply unit and the real clock time, and controls the closing of the switching element of the switching circuit. Disconnect the grid power supply unit or the solar power unit to supply power to the fan system.
  • the controller of the utility model can be a single-chip MCU, and the detection circuit is formed by connecting resistors R1 and R2 in series, one end is grounded, the other end is connected to the output end of the solar cell, and the DC-DC boost circuit outputs about 300V.
  • the DC voltage, the output of the detection circuit is connected to the input pin of the MCU of the MCU, and the switching circuit can be a continuator switching circuit, including a relay JK1, a resistor R3, a triode Q and a diode D1.
  • the controlled switch JK1-1 of relay JK1 is connected with the output of AC-DC rectifier circuit and DC-DC boost circuit respectively.
  • the controlled switch JK1-1 of relay JK1 is an alternative switch.
  • the controlled switch JK1-1 is turned up to supply power to the solar power supply unit.
  • the detection circuit sends a signal to the MCU of the MCU, and the output pin of the MCU MCU controls the relay JK 1 to control
  • the switch JK1-1 is turned down and the 300V DC voltage is output by the grid power supply unit.
  • the MCU can communicate with the fan system. When the power supply is switched, the signal is sent to the fan system, so that the fan system stops working, then the power supply is switched, which is safer and more reliable.
  • the fan system can also send control signals to the MCU of the microcontroller.
  • the grid voltage monitoring circuit formed by the series connection of the resistors R4 and R5 mainly detects the voltage at the output end of the AC-DC rectifier circuit, and then sends it to the MCU of the single-chip microcomputer for proper control. For example, when the grid is out of power, there is no need to Switch The operation of the power supply, perfect control.
  • the controller described above may be a single-chip MCU, and the switching circuit includes an optocoupler and thyristor switches D2 and D3.
  • the solar power supply unit absorbs and stores the solar energy through the solar battery and outputs a DC voltage of about 48V, and converts it into a DC voltage of 300V through the DC-DC boosting circuit;
  • the power supply unit of the power grid supplies the power of the mains grid through the AC-DC
  • the rectifier circuit converts to a DC voltage of 300V;
  • the detection circuit detects the DC voltage output from the solar power supply unit, and transmits the detected voltage information to the controller, and the controller automatically switches the solar power supply unit by switching the circuit on and off.
  • the grid supply unit supplies power to the fan system, thereby driving the fan system.
  • the detection circuit transmits the detected voltage information to the controller, and the controller controls the switching circuit to be turned on, switches to the power supply of the grid power supply unit, and outputs 300V through the AC-DC rectifier circuit.
  • DC voltage is applied to the fan system.
  • the detection circuit transmits the voltage information to the controller, the controller controls the grid power supply unit to stop the power supply, switches to the solar power supply unit, and outputs 300V DC through the DC-DC boost circuit. Voltage to the fan system.
  • the utility model utilizes the time signal of the real clock circuit, and the controller periodically switches the power supply unit of the grid and the solar power supply unit to work.
  • the function of the real clock circuit can also be implemented in software, and the real clock unit is a program in the controller.
  • the real-time clock circuit can be used to set the solar power supply unit from 8:00 am to 5:00 pm, and the rest of the time is powered by the grid power supply unit.
  • the detection circuit can be used to detect the DC voltage output from the solar power supply unit, so that the control is more objective and practical.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ventilation (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Air Conditioning Control Device (AREA)

Description

一种供电控制装置及其应用的通风换气装置 技术领域 :
本实用新型涉及一种供电控制装置及其应用的通风换气装置。
背景技术 :
目前, 我国利用太阳能驱动控制电动机方面已经取得快速的发展, 出现了 如集成太阳能、 风能、 光能环保电机等新型的电动机技术, 但是利用太阳能直 接驱动电动机的技术方面, 远远未达到大面积普及推广的程度。
在通风换气装置的技术领域比较早利用太阳能来直接控制驱动风机, 但技 术还不成熟、 不完善, 主要有如下的技术问题: 1 )釆用单一的太阳能控制风机 工作, 受太阳能的光照强度、 光照时间或者能源的输送强度等条件的影响, 具 有一定的局限性; 2 ) 当没有了单一的能源输入时, 风机完全停止工作, 不能满 足用户对风机长效运行的需要, 甚至会给用户造成巨大的经济损失。
实用新型内容 :
本实用新型的目的是提供一种供电控制装置, 它节能环保、 结构简单、 用电 成本低、 供电更加安全可靠。
本实用新型的供电控制装置是通过下述技术方案予以实现的。
一种供电控制装置, 它包括供电电源和切换控制系统, 供电电源包括太阳能 供电单元和电网供电单元, 正常情况下由太阳能供电单元为外界供电, 当光照 不足, 太阳能供电单元供电不足的情况下, 由切换控制系统接入电网供电单元, 并由电网供电单元为外界供电, 太阳能供电单元包括太阳能电池和 DC-DC升压 电路, 太阳能电池的输出端与 DC-DC升压电路的输入端连接, DC-DC升压电路的 输出端为外界供电,电网供电单元包括 AC-DC整流电路,电网交流输入连接 AC-DC 整流电路的输入端, AC-DC整流电路的输出端为外界供电。
上述所述的切换控制系统包括检测电路、 控制器和切换电路, 控制器可以 是微处理器, 切换电路主要包括分别连接到 AC-DC整流电路输出端和 DC-DC升 压电路输出端的开关元件, 检测电路检测太阳能供电单元的电压信号并输入到 控制器, 控制器根据太阳能供电单元输出的电压状况输出控制信号到切换电路, 单元为外界供电。
上述所述的切换控制系统包括还包括实时钟电路, 实时钟电路的输出端连 接控制器的输入端, 控制器根据实时钟时间输出控制信号到切换电路, 通过控 外界供电。
本实用新型的供电控制装置与现有技术相比具有如下优点: 1 )正常情况下, 由太阳能供电单元为外界供电, 比较节能环保, 用电成本低; 2 ) 当光照不足, 太阳能供电单元供电不足的情况下, 由切换控制系统接入电网供电单元, 并由 电网供电单元为外界供电, 保证安全可靠的供电; 3 ) 电路结构简单, 切换控制 系统、 太阳能供电单元和电网供电单元结构非常简单, 容易实现, 制造成本低。
本实用新型的另一目的是提供一种通风换气装置, 它使用成本较低、 节能 环保、 供电安全可靠。
本实用新型的通风换气装置是通过下述技术方案予以实现的。
一种通风换气装置, 它包括风机系统和供电控制装置, 其特征在于: 供电 控制装置包括供电电源和切换控制系统, 供电电源包括太阳能供电单元和电网 供电单元, 正常情况下由太阳能供电单元为风机系统供电, 当光照不足, 太阳 能供电单元供电不足的情况下, 由切换控制系统接入电网供电单元, 并由电网 供电单元为风机系统供电, 太阳能供电单元包括太阳能电池和 DC-DC升压电路, 太阳能电池的输出端与 DC-DC升压电路的输入端连接, DC-DC升压电路的输出端 为风机系统供电, 电网供电单元包括 AC-DC整流电路, 电网交流输入连接 AC-DC 整流电路的输入端, AC-DC整流电路的输出端为风机系统供电。
上述所述的切换控制系统包括检测电路、 控制器和切换电路, 控制器可以 是微处理器, 切换电路主要包括分别连接到 AC-DC整流电路输出端和 DC-DC升 压电路输出端的开关元件, 检测电路检测太阳能供电单元的电压信号并输入到 控制器, 控制器根据太阳能供电单元输出的电压状况输出控制信号到切换电路, 单元为风机系统供电。
上述所述的切换控制系统包括还包括实时钟电路, 实时钟电路的输出端连 接控制器的输入端, 控制器根据实时钟时间输出控制信号到切换电路, 通过控 风机系统供电。
上述所述的控制器可以是单片机 MCU, 切换电路可以是继电器切换电路。 上述所述的控制器可以是单片机 MCU和光电耦合驱动电路组成, 切换电路 可以是可控硅开关。
上述所述的控制器可以与风机系统连接, 控制风机系统的运行和接收风机 系统的运行状态反馈。
本实用新型的通风换气装置与现有技术相比具有如下优点及技术效果: 1 ) 集合了太阳能和电网电能, 节能环保, 降低了使用的经济成本, 解决了单一能 源控制风机的局限性问题; 2 )太阳能和电网电能可以单独工作, 并且通过风机 系统来实现切换驱动控制风机运行, 智能化程度较高, 供电安全可靠, 能够确 保风机长效运行, 满足了用户的需求。
附图说明:
图 1 是本实用新型的电路方框图。
图 2 是图 1的一种实施电路图;
图 3是图 1的另一种实施电路图。
具体实施方式:
下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。
如图 1所示, 一种通风换气装置, 它包括风机系统和供电控制装置, 供电 控制装置包括供电电源和切换控制系统, 供电电源包括太阳能供电单元和电网 供电单元, 正常情况下由太阳能供电单元为风机系统供电, 当光照不足, 太阳 能供电单元供电不足的情况下, 由切换控制系统接入电网供电单元, 并由电网 供电单元为风机系统供电。 所述的太阳能供电单元包括太阳能电池和 DC-DC升 压电路, 太阳能电池的输出端与 DC-DC升压电路的输入端连接, DC-DC升压电路 的输出端为风机系统供电。 所述的电网供电单元包括 AC-DC整流电路, 电网交 流输入连接 AC-DC整流电路的输入端, AC-DC整流电路的输出端为风机系统供电。
所述的切换控制系统包括检测电路、 实时钟电路、 控制器和切换电路, 控 制器可以是微处理器, 切换电路主要包括分别连接到 AC-DC整流电路输出端和 DC-DC升压电路输出端的开关元件,检测电路检测太阳能供电单元的电压信号并 输入到控制器, 控制器根据太阳能供电单元输出的电压状况和实时钟时间输出 控制信号到切换电路, 通过控制切换电路的开关元件的闭合与断开选通电网供 电单元或者太阳能供电单元为风机系统供电。
如图 2所示, 本实用新型的控制器可以是单片机 MCU, 检测电路由电阻 Rl、 R2串连而成, 一端接地, 另一端接太阳能电池的输出端, DC-DC升压电路输出 300V左右的直流电压, 检测电路的输出端连接到单片机 MCU的输入脚, 切换电 路可以是继续器切换电路, 包括继电器 JK1、 电阻 R3、 三极管 Q和二级管 Dl。 继电器 JK1的受控开关 JK1-1分别与 AC-DC整流电路和 DC-DC升压电路输出端 连接起来, 继电器 JK1的受控开关 JK1-1是二选一的互锁开关, 一般情况下, 受控开关 JK1-1往上拨通太阳能供电单元供电, 当 DC-DC升压电路输出端小于 300 V时, 检测电路发送信号到单片机 MCU ,单片机 MCU的输出脚控制继电器 J K 1 , 使受控开关 JK1-1往下拨通由电网供电单元输出 300V直流电压。 为了控制更加 完善, 单片机 MCU可以与风机系统连接通信, 当进行供电电源切换时, 发出信 号给风机系统, 使风机系统停止运作后, 再切换供电电源, 这样可以更加安全 可靠。 风机系统也可以将控制信号发送到单片机 MCU。 另外, 也可以由电阻 R4、 R5串联而成的电网电压监测电路, 主要检测 AC-DC整流电路的输出端的电压, 然后送到单片机 MCU, 以便进行恰当的控制, 例如电网没电时, 就无须进行切换 供电电源的动作, 完善控制。
具体实施例 2: 如图 3所示, 上述所述的控制器可以是单片机 MCU, 切换电 路包括光电耦合和可控硅开关 D2 、 D3。
本实用新型工作原理是: 太阳能供电单元通过太阳能电池吸收储存太阳能 并输出 48V左右的直流电压, 经过 DC-DC升压电路转换为 300V的直流电压; 电 网供电单元提供市电电网电能经过 AC-DC整流电路转换为 300V的直流电压; 检 测电路对从太阳能供电单元输出的直流电压进行检测, 并将检测到的电压信息 传输到控制器, 控制器通过切换电路的通断, 自动切换太阳能供电单元和电网 供电单元给风机系统供电, 从而驱动控制风机系统。 当太阳能供电单元输出的 直流电压未达到 48V时, 检测电路将检测到的电压信息传输到控制器, 控制器 控制切换电路导通,切换到电网供电单元供电,经过 AC-DC整流电路,输出 300V 直流电压给风机系统。 当太阳能供电单元输出的直流电压可以达到 48V左右时, 检测电路将电压信息传输到控制器, 控制器控制电网供电单元停止供电, 切换 到太阳能供电单元供电, 经过 DC-DC升压电路输出 300V直流电压给风机系统。
另外, 本实用新型利用实时钟电路的时间信号, 控制器定时切换电网供电 单元和太阳能供电单元工作。 实时钟电路的功能也可以用软件实现, 所述的实 时钟单元是控制器里面的程序。 通过实时钟电路可以设定一天中早上 8点到下 午 5点为太阳能供电单元, 其余时间由电网供电单元供电。 为了使控制更加完 善, 可以配合检测电路对从太阳能供电单元输出的直流电压进行检测, 从而使 控制更加切合客观实际。

Claims

权 利 要 求
1、 一种供电控制装置, 它包括供电电源和切换控制系统, 其特征在于: 供 电电源包括太阳能供电单元和电网供电单元, 正常情况下由太阳能供电单元为 外界供电, 当光照不足, 太阳能供电单元供电不足的情况下, 由切换控制系统 接入电网供电单元, 并由电网供电单元为外界供电,太阳能供电单元包括太阳能 电池和 DC-DC升压电路, 太阳能电池的输出端与 DC-DC升压电路的输入端连接, DC-DC升压电路的输出端为外界供电,电网供电单元包括 AC-DC整流电路, 电网 交流输入连接 AC-DC整流电路的输入端, AC-DC整流电路的输出端为外界供电。
2、 根据权利要求 1所述的一种供电控制装置, 其特征在于: 切换控制系统 包括检测电路、 控制器和切换电路, 控制器可以是微处理器, 切换电路主要包 括分别连接到 AC-DC整流电路输出端和 DC-DC升压电路输出端的开关元件, 检 测电路检测太阳能供电单元的电压信号并输入到控制器, 控制器根据太阳能供 电单元输出的电压状况输出控制信号到切换电路, 通过控制切换电路的开关元 件的闭合与断开选通电网供电单元或者太阳能供电单元为外界供电。
3、 根据权利要求 2所述的一种供电控制装置, 其特征在于: 切换控制系统 包括还包括实时钟电路, 实时钟电路的输出端连接控制器的输入端, 控制器根 据实时钟时间输出控制信号到切换电路, 通过控制切换电路的开关元件的闭合 与断开选通电网供电单元或者太阳能供电单元为外界供电。
4、 一种通风换气装置, 它包括风机系统和供电控制装置, 其特征在于: 供 电控制装置包括供电电源和切换控制系统, 供电电源包括太阳能供电单元和电 网供电单元, 正常情况下由太阳能供电单元为风机系统供电, 当光照不足, 太 阳能供电单元供电不足的情况下, 由切换控制系统接入电网供电单元, 并由电 网供电单元为风机系统供电, 太阳能供电单元包括太阳能电池和 DC-DC升压电 路, 太阳能电池的输出端与 DC-DC升压电路的输入端连接, DC-DC升压电路的输 出端为风机系统供电, 电网供电单元包括 AC-DC整流电路, 电网交流输入连接 AC-DC整流电路的输入端, AC-DC整流电路的输出端为风机系统供电。
5、 根据权利要求 4所述的一种通风换气装置, 其特征在于: 切换控制系统 包括检测电路、 控制器和切换电路, 控制器可以是微处理器, 切换电路主要包 括分别连接到 AC-DC整流电路输出端和 DC-DC升压电路输出端的开关元件, 检 测电路检测太阳能供电单元的电压信号并输入到控制器, 控制器根据太阳能供 电单元输出的电压状况输出控制信号到切换电路, 通过控制切换电路的开关元 件的闭合与断开选通电网供电单元或者太阳能供电单元为风机系统供电。
6、 根据权利要求 5所述的一种通风换气装置, 其特征在于: 切换控制系统 包括还包括实时钟电路, 实时钟电路的输出端连接控制器的输入端, 控制器根 据实时钟时间输出控制信号到切换电路, 通过控制切换电路的开关元件的闭合 与断开选通电网供电单元或者太阳能供电单元为风机系统供电。
7、 根据权利要求 4或 5或 6所述的一种通风换气装置, 其特征在于: 控制 器可以是单片机 MCU , 切换电路可以是继电器切换电路,
8、 根据权利要求 4或 5或 6所述的一种通风换气装置, 其特征在于: 控制器 可以是单片机 MCU和光电耦合驱动电路组成, 切换电路可以是可控硅开关。
9、 根据权利要求 4或 5或 6所述的一种通风换气装置, 其特征在于: 控制器 可以与风机系统连接, 控制风机系统的运行和接收风机系统的运行状态反馈。
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