CN204905908U - Domestic type solar energy energy storage lithium cell power supply unit - Google Patents
Domestic type solar energy energy storage lithium cell power supply unit Download PDFInfo
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- CN204905908U CN204905908U CN201520476982.1U CN201520476982U CN204905908U CN 204905908 U CN204905908 U CN 204905908U CN 201520476982 U CN201520476982 U CN 201520476982U CN 204905908 U CN204905908 U CN 204905908U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
本实用新型公开了一种家用型太阳能储能锂电池供电装置，包括依次电性连接的光伏电池板、充电管理电路、蓄电池和BMS电池管理系统，供电装置还包括逆变器、转换器和DC/DC电源模块，逆变器的输入端与BMS电池管理系统的第一电能输出端电性连接，BMS电池管理系统的第二电能输出端与DC/DC电源模块的输入端电性连接，DC/DC电源模块的输出端输出直流电，转换器的第一输入端接入市电，转换器的第二输入端与逆变器的输出端电性连接，转换器的输出端输出交流电。与现有技术相比，本实用新型充电管理电路能够控制蓄电池充电并直接提供直流电，逆变器能够将直流电转换成交流电，转换器能够自动切换该交流电和市电，保证负载持续工作。
The utility model discloses a household solar energy storage lithium battery power supply device, which comprises a photovoltaic cell board, a charging management circuit, a storage battery and a BMS battery management system electrically connected in sequence, and the power supply device also includes an inverter, a converter and a DC /DC power supply module, the input end of the inverter is electrically connected to the first electric energy output end of the BMS battery management system, the second electric energy output end of the BMS battery management system is electrically connected to the input end of the DC/DC power supply module, and the DC The output end of the /DC power supply module outputs direct current, the first input end of the converter is connected to the mains, the second input end of the converter is electrically connected to the output end of the inverter, and the output end of the converter outputs alternating current. Compared with the prior art, the charging management circuit of the utility model can control the charging of the storage battery and directly provide DC power, the inverter can convert the DC power into AC power, and the converter can automatically switch the AC power and commercial power to ensure continuous operation of the load.
Description
技术领域technical field
本实用新型涉及一种供电装置，尤其涉及一种家用型太阳能储能锂电池供电装置。The utility model relates to a power supply device, in particular to a household solar energy storage lithium battery power supply device.
背景技术Background technique
随着工业社会的发展，非再生能源如煤炭、石油等的总量越来越少，全球面临着越来越严峻的资源匮乏问题，为了解决这一问题，开发利用可再生能源如太阳能、水力、风力等成为了一大趋势。以利用太阳能为例，现有的太阳能供电装置产生的电能为直流电，且电压较低，为48V，不能满足人们日常需求。另外，当太阳能供电装置的电能耗尽时会突然断电，使用起来很不方便。因此，有必要提供一种新的供电装置来解决上述问题。With the development of industrial society, the total amount of non-renewable energy such as coal and oil is getting less and less, and the world is facing an increasingly severe problem of resource scarcity. In order to solve this problem, the development and utilization of renewable energy such as solar energy and hydropower , wind power, etc. have become a major trend. Taking the use of solar energy as an example, the electric energy generated by the existing solar power supply device is direct current, and the voltage is low, 48V, which cannot meet people's daily needs. In addition, when the power of the solar power supply device is exhausted, it will suddenly cut off the power, which is very inconvenient to use. Therefore, it is necessary to provide a new power supply device to solve the above problems.
实用新型内容Utility model content
本实用新型的目的在于提供一种能够将太阳能产生的直流电转化成交流电，自动切换市电和蓄电池的家用型太阳能储能锂电池供电装置。The purpose of the utility model is to provide a household type solar energy storage lithium battery power supply device which can convert direct current generated by solar energy into alternating current and automatically switch between mains power and storage battery.
为了实现上述目的，本实用新型所采用的技术方案如下：In order to achieve the above object, the technical scheme adopted in the utility model is as follows:
一种家用型太阳能储能锂电池供电装置，包括依次电性连接的光伏电池板、充电管理电路、蓄电池和BMS电池管理系统，所述供电装置还包括逆变器、转换器和DC/DC电源模块，所述逆变器的输入端与所述BMS电池管理系统的第一电能输出端电性连接，所述BMS电池管理系统的第二电能输出端与所述DC/DC电源模块的输入端电性连接，所述DC/DC电源模块的输出端输出直流电，所述转换器的第一输入端接入市电，所述转换器的第二输入端与所述逆变器的输出端电性连接，所述转换器的输出端输出交流电。A household solar energy storage lithium battery power supply device, including photovoltaic panels, charging management circuits, storage batteries and BMS battery management systems electrically connected in sequence, the power supply device also includes an inverter, a converter and a DC/DC power supply module, the input end of the inverter is electrically connected to the first electric energy output end of the BMS battery management system, and the second electric energy output end of the BMS battery management system is connected to the input end of the DC/DC power supply module Electrically connected, the output terminal of the DC/DC power supply module outputs direct current, the first input terminal of the converter is connected to the mains, and the second input terminal of the converter is electrically connected to the output terminal of the inverter. Sexually connected, the output terminal of the converter outputs alternating current.
优选的，所述供电装置还包括微处理器和液晶显示屏,所述微处理器连接在所述BMS电池管理系统和所述液晶显示屏之间。Preferably, the power supply device further includes a microprocessor and a liquid crystal display, and the microprocessor is connected between the BMS battery management system and the liquid crystal display.
优选的，所述供电装置还包括通讯单元，所述通讯单元与所述微处理器之间通过通讯接口电性连接。Preferably, the power supply device further includes a communication unit, and the communication unit is electrically connected to the microprocessor through a communication interface.
优选的，所述充电管理电路包括单片机和用于控制所述蓄电池充电的场效应管，所述单片机与所述场效应管的栅极电性连接，所述场效应管的源极和漏极以及所述蓄电池串联连接在充电线路中。Preferably, the charging management circuit includes a single-chip microcomputer and a field effect transistor for controlling charging of the storage battery, the single-chip microcomputer is electrically connected to the gate of the field effect transistor, and the source and drain of the field effect transistor And the battery is connected in series in the charging line.
优选的，所述蓄电池采用环保型磷酸铁锂电池。Preferably, the storage battery is an environment-friendly lithium iron phosphate battery.
优选的，所述转换器包括双电源转换开关。Preferably, the converter includes a dual power switch.
与现有技术相比，本实用新型家用型太阳能储能锂电池供电装置的有益效果在于：所述充电管理电路能够控制所述蓄电池充电并直接提供直流电，所述逆变器能够将直流电转换成交流电，所述转换器能够自动切换该交流电和市电，保证负载持续工作。Compared with the prior art, the beneficial effect of the utility model household solar energy storage lithium battery power supply device is that: the charging management circuit can control the charging of the storage battery and directly provide DC power, and the inverter can convert the DC power into AC power, the converter can automatically switch between the AC power and the mains power to ensure continuous operation of the load.
附图说明Description of drawings
图1为本实用新型家用型太阳能储能锂电池供电装置的电路结构框图。Fig. 1 is a block diagram of the circuit structure of the utility model household solar energy storage lithium battery power supply device.
具体实施方式Detailed ways
下面结合具体实施例对本实用新型进一步进行描述。The utility model is further described below in conjunction with specific embodiments.
请参阅图1所示，本实用新型家用型太阳能储能锂电池供电装置包括依次电性连接的光伏电池板、充电管理电路、蓄电池和BMS电池管理系统，所述蓄电池采用环保型磷酸铁锂电池。所述供电装置还包括逆变器、转换器和DC/DC电源模块，所述逆变器的输入端与所述BMS电池管理系统的第一电能输出端电性连接，所述BMS电池管理系统的第二电能输出端与所述DC/DC电源模块的输入端电性连接，所述DC/DC电源模块的输出端输出直流电，所述转换器的第一输入端接入市电，所述转换器的第二输入端与所述逆变器的输出端电性连接，所述转换器的输出端输出交流电，所述转换器包括双电源转换开关。Please refer to Figure 1, the utility model household solar energy storage lithium battery power supply device includes a photovoltaic panel, a charging management circuit, a storage battery and a BMS battery management system electrically connected in sequence, and the storage battery adopts an environment-friendly lithium iron phosphate battery . The power supply device also includes an inverter, a converter and a DC/DC power supply module, the input end of the inverter is electrically connected to the first electric energy output end of the BMS battery management system, and the BMS battery management system The second power output end of the DC/DC power supply module is electrically connected to the input end of the DC/DC power supply module, the output end of the DC/DC power supply module outputs direct current, the first input end of the converter is connected to the mains, and the The second input terminal of the converter is electrically connected with the output terminal of the inverter, the output terminal of the converter outputs alternating current, and the converter includes a dual power supply switch.
所述供电装置还包括微处理器、液晶显示屏和通讯单元,所述微处理器连接在所述BMS电池管理系统和所述液晶显示屏之间，所述通讯单元与所述微处理器之间通过通讯接口电性连接。The power supply device also includes a microprocessor, a liquid crystal display and a communication unit, the microprocessor is connected between the BMS battery management system and the liquid crystal display, and the communication unit and the microprocessor are They are electrically connected through the communication interface.
所述充电管理电路包括单片机和用于控制所述蓄电池充电的场效应管，所述单片机与所述场效应管的栅极电性连接，所述场效应管的源极和漏极以及所述蓄电池串联连接在充电线路中。The charging management circuit includes a single-chip microcomputer and a field effect transistor for controlling charging of the storage battery, the single-chip microcomputer is electrically connected to the gate of the field effect transistor, the source and drain of the field effect transistor and the The batteries are connected in series in the charging line.
在本实施例中，所述光伏电池板的规格为48V/200W，所述光伏电池板采用单晶硅，表面为多菱采光板，在弱光下依然可以采光，光电转换率高达20％以上。所述磷酸铁锂电池的规格为48V/100AH，其优点有循环寿命长，安全性能可靠，质轻，能量密度高等。蓄电池充电受所述充电管理电路控制，所述充电管理电路采用脉冲宽度调制方式，实现定电流输出或者定电压输出对所述蓄电池进行充电，所述BMS电池管理系统将蓄电池的性能参数(如电池电压、剩余容量、电池循环次数、电池温度等)实时发送给所述微处理器，所述微处理器根据该性能参数来决定充电电流，使充电过程符合蓄电池的充电U/I曲线。当蓄电池充满电后，蓄电池的输出电压为48V，微控制器控制切断场效应管,从而停止充电。In this embodiment, the specification of the photovoltaic cell panel is 48V/200W, the photovoltaic cell panel is made of monocrystalline silicon, and the surface is a multi-ring lighting board, which can still collect light in weak light, and the photoelectric conversion rate is as high as 20% or more . The specification of the lithium iron phosphate battery is 48V/100AH, and its advantages include long cycle life, reliable safety performance, light weight, and high energy density. The charging of the storage battery is controlled by the charging management circuit. The charging management circuit adopts a pulse width modulation method to realize constant current output or constant voltage output to charge the storage battery. Voltage, remaining capacity, battery cycle times, battery temperature, etc.) are sent to the microprocessor in real time, and the microprocessor determines the charging current according to the performance parameters, so that the charging process conforms to the charging U/I curve of the battery. When the battery is fully charged, the output voltage of the battery is 48V, and the microcontroller controls to cut off the field effect tube, thereby stopping charging.
在本实用新型中，所述BMS电池管理系统内置功能齐全的锂电保护模块，对蓄电池具有过充保护、过放保护、过流保护、过温保护、短路保护等功能。所述液晶显示屏能够实时显示蓄电池的电压和剩余容量等充电信息。所述逆变器能够将48V直流电转换为110V或者220V交流电，频率50HZ，最大输出功率5000W。所述DC/DC电源模块输出5～48V直流电，满足家庭直流用电场合，最大输出功率100W。In the utility model, the BMS battery management system has a built-in full-featured lithium battery protection module, which has functions such as overcharge protection, overdischarge protection, overcurrent protection, overtemperature protection, and short circuit protection for the battery. The liquid crystal display screen can display charging information such as the voltage and remaining capacity of the storage battery in real time. The inverter can convert 48V direct current into 110V or 220V alternating current with a frequency of 50HZ and a maximum output power of 5000W. The DC/DC power supply module outputs 5-48V direct current, which meets the occasions of household direct current power consumption, and the maximum output power is 100W.
本实用新型的工作原理为：所述光伏电池板能够将太阳能转换成电能，并在充电管理电路的控制下对蓄电池进行充电，白天光伏电池板将光能转化为电能存储在蓄电池中，蓄电池通过所述DC/DC电源模块输出直流电，所述逆变器将直流电转换成交流电，并给负载进行供电，所述转换器能够自动切换该交流电和市电，当蓄电池中的电能未耗尽时，所述双电源转换开关控制负载连接蓄电池产生的交流电，当蓄电池中的电能耗尽时，所述双电源转换开关控制负载连接市电。The working principle of the utility model is: the photovoltaic cell panel can convert solar energy into electric energy, and charge the storage battery under the control of the charging management circuit. During the day, the photovoltaic cell panel converts light energy into electric energy and stores it in the storage battery. The DC/DC power supply module outputs direct current, and the inverter converts the direct current into alternating current to supply power to the load. The converter can automatically switch between the alternating current and the mains power. When the electric energy in the storage battery is not exhausted, The dual power conversion switch controls the load to connect to the alternating current generated by the storage battery, and when the electric energy in the storage battery is exhausted, the dual power conversion switch controls the load to connect to the mains.
以上示意性的对本实用新型及其实施方式进行了描述，该描述没有限制性，附图中所示的也只是本实用新型的实施方式之一，实际的结构并不局限于此。所以，如果本领域的普通技术人员受其启示，在不脱离本实用新型创造宗旨的情况下，不经创造性的设计出与该技术方案相似的结构方式及实施例，均应属于本实用新型的保护范围。The above schematically describes the utility model and its implementation, which is not restrictive, and what is shown in the accompanying drawings is only one implementation of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, and without departing from the purpose of the invention of the utility model, without creatively designing a structural mode and an embodiment similar to the technical solution, it shall belong to the utility model. protected range.
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| CN113991822A (en) * | 2021-10-29 | 2022-01-28 | 惠州高盛达科技有限公司 | Photovoltaic panel charge-discharge application circuit based on BUCK circuit |
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| CN113991822A (en) * | 2021-10-29 | 2022-01-28 | 惠州高盛达科技有限公司 | Photovoltaic panel charge-discharge application circuit based on BUCK circuit |
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Address after: 2/F, Building 398 Yisheng Road, Kunshan High-tech Zone, Suzhou City, Jiangsu Province Patentee after: Kunshan Jinxin New Energy Technology Co.,Ltd. Address before: 2/F, Building 398 Yisheng Road, Kunshan High-tech Zone, Suzhou City, Jiangsu Province Patentee before: KUNSHAN JINXIN NEW ENERGY CO.,LTD. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20151223 |