CN103312011B - A kind of power device for energy storage of lithium battery - Google Patents
A kind of power device for energy storage of lithium battery Download PDFInfo
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- CN103312011B CN103312011B CN201210056192.9A CN201210056192A CN103312011B CN 103312011 B CN103312011 B CN 103312011B CN 201210056192 A CN201210056192 A CN 201210056192A CN 103312011 B CN103312011 B CN 103312011B
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 47
- 238000004146 energy storage Methods 0.000 title claims abstract description 25
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
本发明涉及一种锂电池储能电源装置，包括有装置外壳，特点是：装置外壳内设置有锂电池组件，在锂电池组件的输入端连接有电量显示器的输出端。同时，电量显示器的输入端连接充电器组件的输出端与逆变器的输出端，充电器组件与锂电池组件输入端之间的回路上设置有充电开关。逆变器组件与锂电池组件输出端之间的回路上设置有放电开关。这样，依托于锂电池保护组件的存在，可以防止电压和电流的过充过放，保证使用安全性。同时，由于电量显示器的存在，使用者能够及时知晓电量的多少，便于使用。并且，采用模块化的设计，整体重量轻体积小，适用于中小企业储能备用电源系统和家用备用电源系统。
The invention relates to a lithium battery energy storage power supply device, which includes a device casing, and is characterized in that: a lithium battery assembly is arranged in the device casing, and an output end of a power indicator is connected to the input end of the lithium battery assembly. At the same time, the input end of the power indicator is connected to the output end of the charger assembly and the output end of the inverter, and a charging switch is arranged on the circuit between the charger assembly and the input end of the lithium battery assembly. A discharge switch is arranged on the loop between the inverter assembly and the output end of the lithium battery assembly. In this way, relying on the existence of lithium battery protection components, overcharging and overdischarging of voltage and current can be prevented to ensure the safety of use. At the same time, due to the existence of the power indicator, the user can know the amount of power in time, which is convenient for use. Moreover, the modular design is adopted, and the overall weight is light and the volume is small. It is suitable for small and medium-sized enterprise energy storage backup power systems and household backup power systems.
Description
技术领域 technical field
本发明涉及一种电源装置，尤其涉及一种锂电池储能电源装置。The invention relates to a power supply device, in particular to a lithium battery energy storage power supply device.
背景技术 Background technique
电器产品在人们的生活中出现的越来越多，整个社会对电力的需求越来越大。在用电高峰期或由于不可抗拒的外因，如地震、台风等破坏了供电设备的情况下，会导致电力供给不足或断电，严重影响人们的生产生活。目前的后备电源系统主要是针对个人电脑、服务器、存储器等数据信息设备，防止突然的断电，内部存储器的内容来不及保存带硬盘等存储器上，导致的数据丢失。主要包括UPS(UninterruptedPowerSupply不间断电源)、SPS(StandbyPowerSupply备份/待命电源)、BBU(BatteryBackupUnit电池后备单元)。这些备用电源主要使用铅酸电池储能，体积大、比能量低，设计储能时间短，一般为半个小时以下。不适应作为户用或中小企业储能电源系统，为生产生活中各种家用电器备用供电。More and more electrical products appear in people's lives, and the demand for electricity in the whole society is increasing. During the peak period of power consumption or when the power supply equipment is damaged due to irresistible external factors, such as earthquakes and typhoons, it will lead to insufficient power supply or power outages, seriously affecting people's production and life. The current backup power system is mainly aimed at data information equipment such as personal computers, servers, and storage devices to prevent sudden power failures, and the contents of the internal storage are too late to be saved on storage devices such as hard disks, resulting in data loss. Mainly include UPS (UninterruptedPowerSupply uninterruptible power supply), SPS (StandbyPowerSupply backup / standby power supply), BBU (BatteryBackupUnit battery backup unit). These backup power sources mainly use lead-acid batteries for energy storage, which are large in size and low in specific energy, and the designed energy storage time is short, generally less than half an hour. It is not suitable as a household or small and medium-sized energy storage power supply system to provide backup power for various household appliances in production and life.
发明内容 Contents of the invention
本发明的目的就是为了解决现有技术中存在的上述问题，提供一种锂电池储能电源装置。The object of the present invention is to provide a lithium battery energy storage power supply device in order to solve the above-mentioned problems in the prior art.
本发明的目的通过以下技术方案来实现：The purpose of the present invention is achieved through the following technical solutions:
一种锂电池储能电源装置，包括有装置外壳，其中：所述的装置外壳内设置有锂电池组件，所述的锂电池组件的输入端连接电量显示器的输出端，所述电量显示器的输入端连接充电器组件的输出端与逆变器的输出端，所述充电器组件与锂电池组件输出端之间的回路上设置有充电开关，所述逆变器与锂电池组件输出端之间的回路上设置有放电开关。并且，充电器组件为交流输入直流输出，锂电池组件为直流输入直流输出，逆变器组件为直流输入交流输出。A lithium battery energy storage power supply device, including a device casing, wherein: a lithium battery assembly is arranged inside the device casing, the input end of the lithium battery assembly is connected to the output end of a power display, and the input of the power display Connect the output end of the charger assembly and the output end of the inverter, the circuit between the charger assembly and the output end of the lithium battery assembly is provided with a charging switch, and between the inverter and the output end of the lithium battery assembly There is a discharge switch on the circuit. In addition, the charger component is AC input and DC output, the lithium battery component is DC input and DC output, and the inverter component is DC input and AC output.
进一步地，上述的一种锂电池储能电源装置，其中：所述电量显示器为电压式电量计；或是，所述的电量显示器为库伦式电量计。Further, in the above-mentioned lithium battery energy storage power supply device, wherein: the power indicator is a voltage-type fuel gauge; or, the power indicator is a Coulomb-type fuel gauge.
更进一步地，上述的一种锂电池储能电源装置，其中：所述电量显示器的输入端与充电器组件的输出端之间设置有保护组件。Furthermore, in the above-mentioned lithium battery energy storage power supply device, a protection component is arranged between the input terminal of the power indicator and the output terminal of the charger component.
更进一步地，上述的一种锂电池储能电源装置，其中：所述电量显示器的输入端与逆变器的输出端之间设置有保护组件。Furthermore, in the above-mentioned lithium battery energy storage power supply device, a protection component is arranged between the input terminal of the power indicator and the output terminal of the inverter.
更进一步地，上述的一种锂电池储能电源装置，其中：所述的充电器组件上设置有LED工作指示灯。Furthermore, the above-mentioned lithium battery energy storage power supply device, wherein: the charger assembly is provided with an LED working indicator light.
更进一步地，上述的一种锂电池储能电源装置，其中：所述的逆变器上设置有LED工作指示灯。Furthermore, in the above-mentioned lithium battery energy storage power supply device, wherein: the inverter is provided with an LED working indicator light.
更进一步地，上述的一种锂电池储能电源装置，其中：所述的锂电池组件至少有两块磷酸铁锂软包电池串联组成。Further, the above-mentioned lithium battery energy storage power supply device, wherein: the lithium battery assembly is composed of at least two lithium iron phosphate soft pack batteries connected in series.
更进一步地，上述的一种锂电池储能电源装置，其中：所述的锂电池组件至少有两块磷酸铁锂软包电池并联组成。Furthermore, the above-mentioned lithium battery energy storage power supply device, wherein: the lithium battery assembly is composed of at least two lithium iron phosphate soft pack batteries connected in parallel.
再进一步地，上述的一种锂电池储能电源装置，其中：所述的装置外壳内分布有接插槽模块，所述的电量显示器、充电器组件、逆变器分别放入对应的接插槽模块内。Still further, the above-mentioned lithium battery energy storage power supply device, wherein: the housing of the device is distributed with socket modules, and the power indicator, charger assembly, and inverter are respectively put into corresponding sockets. in the slot module.
本发明技术方案的优点主要体现在：依托于保护组件的存在，可以小小防止过充过放，保证使用安全性。同时，由于电量显示器的存在，使用者能够及时知晓电量的多少，便于使用。并且，采用本发明后可以实现储能系统AC到DC再到AC的有效转化。再者，通过模块化的设计，整体体积小，适用于中小企业储能电源系统和家用电源系统。The advantages of the technical solution of the present invention are mainly reflected in: relying on the existence of the protection component, it can slightly prevent overcharge and overdischarge, and ensure the safety of use. At the same time, due to the existence of the power indicator, the user can know the amount of power in time, which is convenient for use. Moreover, the effective conversion of the energy storage system from AC to DC and then to AC can be realized by adopting the present invention. Furthermore, through the modular design, the overall volume is small, and it is suitable for small and medium-sized enterprise energy storage power systems and household power systems.
附图说明Description of drawings
本发明的目的、优点和特点，将通过下面优选实施例的非限制性说明进行图示和解释。这些实施例仅是应用本发明技术方案的典型范例，凡采取等同替换或者等效变换而形成的技术方案，均落在本发明要求保护的范围之内。Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent replacements or equivalent transformations fall within the protection scope of the present invention.
图1是一种锂电池储能电源装置的构造示意图。Fig. 1 is a structural schematic diagram of a lithium battery energy storage power supply device.
具体实施方式 detailed description
如图1所示的一种锂电池储能电源装置，包括有装置外壳1，其与众不同之处在于：本发明所采用的装置外壳1内设置有锂电池组件2。具体来说，为了便于使用者知晓电量的多少，在锂电池组件2的输入端连接有电量显示器3的输出端。并且，考虑到数据显示的精确度得到保证，电量显示器3的输入端连接充电器组件4的输出端与逆变器5的输出端。同时，考虑到在实际使用过程中，充电过程与放电过程的有效控制切换，本发明在充电器组件与锂电池组件2输出端之间的回路上设置有充电开关6。与之对应的是，在逆变器5与锂电池组件2输出端之间的回路上设置有放电开关7。As shown in FIG. 1 , a lithium battery energy storage power supply device includes a device casing 1 , which is different in that a lithium battery assembly 2 is arranged inside the device casing 1 used in the present invention. Specifically, in order to facilitate the user to know the amount of power, the input end of the lithium battery assembly 2 is connected to the output end of the power indicator 3 . Moreover, considering that the accuracy of data display is ensured, the input end of the power indicator 3 is connected to the output end of the charger assembly 4 and the output end of the inverter 5 . At the same time, considering the effective control switching between the charging process and the discharging process in the actual use process, the present invention is provided with a charging switch 6 on the circuit between the charger assembly and the output end of the lithium battery assembly 2 . Correspondingly, a discharge switch 7 is provided on the circuit between the inverter 5 and the output end of the lithium battery assembly 2 .
就本发明一较佳的实施方式来看，为了适应不同的使用环境需要，采用的电量显示器3可以为电压式电量计，其并联连接在电路中。当然亦可以采用库伦式电量计作为电量显示器3，其以串联方式连入电路中。As far as a preferred embodiment of the present invention is concerned, in order to meet the needs of different usage environments, the electricity display 3 used may be a voltage type electricity meter, which is connected in parallel in the circuit. Of course, it is also possible to use a coulomb type electric quantity meter as the electric quantity indicator 3 , which is connected into the circuit in series.
进一步来看，考虑到能够提升整体的安全机制，对于锂电池组件2的使用给予保护，在电量显示器3的输入端与充电器组件的输出端之间设置有保护组件8。同样的，在电量显示器3的输入端与逆变器5的输出端之间也设置有保护组件8。Further, considering that the overall safety mechanism can be improved, the use of the lithium battery assembly 2 is protected, and a protection assembly 8 is provided between the input end of the power indicator 3 and the output end of the charger assembly. Similarly, a protection component 8 is also provided between the input terminal of the electric quantity indicator 3 and the output terminal of the inverter 5 .
再进一步来看，为了便于使用者知晓充电器组件与逆变器5的工作状态，在充电器组件上设置有LED工作指示灯。同样的，在逆变器5上也设置有LED工作指示灯。Looking further, in order to facilitate the user to know the working status of the charger assembly and the inverter 5, an LED working indicator light is provided on the charger assembly. Similarly, an LED working indicator light is also provided on the inverter 5 .
并且，考虑到使用环境的不同，为了便于电池的有效稳定工作，本发明采用的锂电池组件2至少有两块磷酸铁锂软包电池串联组成。当然，也可以采用至少有两块磷酸铁锂软包电池并联组成。同时，考虑到制造组装的便捷，采用的装置外壳1内分布有接插槽模块，电量显示器3、充电器组件、逆变器5分别放入对应的接插槽模块内。Moreover, considering the difference in the use environment, in order to facilitate the effective and stable operation of the battery, the lithium battery assembly 2 used in the present invention consists of at least two lithium iron phosphate pouch batteries connected in series. Of course, it is also possible to use at least two lithium iron phosphate soft pack batteries connected in parallel. At the same time, considering the convenience of manufacturing and assembling, socket modules are distributed in the casing 1 of the adopted device, and the power indicator 3, the charger assembly, and the inverter 5 are put into the corresponding socket modules respectively.
结合本发明的实际使用情况来看，锂电池组件2的直流电压为25.6V或是51.2V。同时，锂电池组件2可充电电量和可放电电量为1000Wh至5000Wh。Considering the actual usage of the present invention, the DC voltage of the lithium battery assembly 2 is 25.6V or 51.2V. At the same time, the rechargeable and dischargeable electricity of the lithium battery assembly 2 is 1000Wh to 5000Wh.
当需要储存电能时，打开充电开关6，市电输入充电器组件，由充电器组件将交流市电转变为5A-50A的直流电。之后，直流电进入保护组件8，然后通过电量显示器3，对锂电池组件2进行充电，充电模式为先恒流后恒压。具体来说，充电器组件对锂电池组件2先以5A-50A的电流充电，当锂电池组件2的电压升高至29.2V时，充电器组件自动转换为恒压模式，直至充电电流小于截止电流为止，停止充电。充电器组件上的LED工作指示灯至少采用两个，一个LED指示灯9为充电器组件电源指示灯，该灯亮表明充电器组件接入市电。另一个LED指示灯9为充电状态指示灯，该灯为红色时，表示充电正在进行，当该灯转为绿色时，表明充电完成。When the electric energy needs to be stored, the charging switch 6 is turned on, and the mains power is input into the charger assembly, which converts the AC mains power into a 5A-50A direct current. Afterwards, the direct current enters the protection component 8, and then charges the lithium battery component 2 through the power display 3, and the charging mode is constant current first and then constant voltage. Specifically, the charger component charges the lithium battery component 2 with a current of 5A-50A. When the voltage of the lithium battery component 2 rises to 29.2V, the charger component automatically switches to the constant voltage mode until the charging current is less than the cut-off stop charging. The LED work indicator light on the charger assembly adopts at least two, and an LED indicator light 9 is the charger assembly power supply indicator light, and this light shows that the charger assembly is connected to the mains. Another LED indicator light 9 is a charge status indicator light, and when this light is red, it shows that charging is in progress, and when this light turns green, it shows that charging is complete.
当系统需要放电时，打开放电开关7，市电输出端接入用电器。电流由锂电池组件2流过电量显示器3，然后经过保护组件8进入逆变器5，由逆变器5将直流电转变为交流市电供用电器使用。逆变器5上的LED工作指示灯至少采用两个，一个LED指示灯9为逆变器5电源指示灯，该灯亮表明放电开关7打开。另一个LED指示灯9为逆变器5的报警指示灯，当放电时逆变器5出现异常如过温或锂电池组件2过放时闪烁，提醒用户关闭输出。电池组保护组件8监测每串的电压值，其中设置电池组保护组件8防止过充电压保护为单串3.9V，过放电压保护为单串2.5V。When the system needs to be discharged, the discharge switch 7 is turned on, and the output terminal of the mains power is connected to an electrical appliance. The current flows from the lithium battery assembly 2 through the power display 3, and then enters the inverter 5 through the protection assembly 8, and the inverter 5 converts direct current into alternating current mains power for electrical appliances. The LED working indicator light on the inverter 5 adopts at least two, and one LED indicator light 9 is the inverter 5 power supply indicator light, and this light shows that the discharge switch 7 is opened. Another LED indicator light 9 is an alarm indicator light of the inverter 5, and the inverter 5 flashes when an abnormality such as overheating or lithium battery assembly 2 is over-discharged during discharge, reminding the user to turn off the output. The battery pack protection component 8 monitors the voltage value of each string, wherein the battery pack protection component 8 is set to prevent overcharge voltage protection as single string 3.9V, and overdischarge voltage protection as single string 2.5V.
通过上述的文字表述可以看出，采用本发明后，依托于保护组件的存在，可以小小防止过充过放，保证使用安全性。同时，由于电量显示器的存在，使用者能够及时知晓电量的多少，便于使用。并且，采用本发明后可以实现储能系统AC到DC再到AC的有效转化。再者，通过模块化的设计，整体体积小，适用于中小企业储能电源系统和家用电源系统。It can be seen from the above textual expressions that after adopting the present invention, relying on the existence of the protection component, it can slightly prevent overcharging and overdischarging and ensure the safety of use. At the same time, due to the existence of the power indicator, the user can know the amount of power in time, which is convenient for use. Moreover, the effective conversion of the energy storage system from AC to DC and then to AC can be realized by adopting the present invention. Furthermore, through the modular design, the overall volume is small, and it is suitable for small and medium-sized enterprise energy storage power systems and household power systems.
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| CN106849288B (en) * | 2017-04-18 | 2020-04-10 | 清华大学 | Battery module connecting circuit and energy storage device |
| CN107676901A (en) * | 2017-10-18 | 2018-02-09 | 上海航天电源技术有限责任公司 | New energy cold-heating system for distributed energy storage power-supply system |
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| CN1622423A (en) * | 2004-12-13 | 2005-06-01 | 北京中信国安盟固利新材料技术研究院有限公司 | Portable lithium-ion battery energy box |
| CN201294392Y (en) * | 2008-09-16 | 2009-08-19 | 比亚迪股份有限公司 | Portable charging device for electric automobile |
| CN102044899A (en) * | 2009-10-13 | 2011-05-04 | 林福长 | Portable-type domestic charge-discharge power supply box device |
| CN202444305U (en) * | 2012-03-06 | 2012-09-19 | 苏州能斯特新能源有限公司 | Power device for energy storage of lithium battery |
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| CN103312011A (en) | 2013-09-18 |
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Address after: 215011 199 deer Road, hi tech Development Zone, Jiangsu, Suzhou Patentee after: CSI SOLAR POWER GROUP Co.,Ltd. Patentee after: CSI Cells Co.,Ltd. Address before: 215011 199 deer Road, hi tech Development Zone, Jiangsu, Suzhou Patentee before: CSI SOLAR POWER (CHINA) Inc. Patentee before: CSI Cells Co.,Ltd. Address after: 215011 199 deer Road, hi tech Development Zone, Jiangsu, Suzhou Patentee after: Atlas sunshine Power Group Co.,Ltd. Patentee after: CSI Cells Co.,Ltd. Address before: 215011 199 deer Road, hi tech Development Zone, Jiangsu, Suzhou Patentee before: CSI SOLAR POWER GROUP Co.,Ltd. Patentee before: CSI Cells Co.,Ltd. |
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