Method and device for charging and heating storage battery at low temperature
A charging method and charging device technology, applied in battery circuit devices, secondary battery charging/discharging, circuit devices, etc., can solve the problems of low energy consumption, charging energy waste, and affecting charging efficiency, etc., to achieve reduced loss, convenient operation, Effect of improving charging efficiency
Active Publication Date: 2013-07-31
48TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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[0004] In order to overcome the waste of charging energy caused by the constant temperature control of the existing battery charging method, which affects the charging efficiency, the present invention aims to provide a low-temperature battery charging and heating method, which can realize high-efficiency and low-energy charging in a low-temperature environment
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[0032] A heating and charging method for a low-temperature storage battery, comprising a charging device, such as figure 1 As shown, the charging device includes a solar module 1, a charging and discharging controller 2 connected to the solar module 1; a storage battery 6 placed in an incubator 7 is electrically connected to the charging and discharging controller 2, and the bottom of the storage battery 6 is connected to the charging and discharging controller 2. A heating element 4 is arranged between the incubators 7, the heating element 4 is preferably a silicone rubber heating plate or a silicone rubber heating wire, and the heating element 4 is electrically connected to the charge and discharge controller 2 through a power line 8; A temperature sensor 5 for detecting the surface temperature of the battery 6 is provided between the storage battery 6 and the side wall of the incubator 7; figure 2 As shown, the signal output end of the temperature sensor 5 is connected wit...
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The invention discloses a method and device for charging and heating a storage battery at a low temperature, which can be used for solving the problem that the charging efficiency is influenced by waste of charging energy at constant temperature in the existing method for charging a storage battery. In the method, the device for charging and heating the storage battery at the low temperature is used; a minimum charging absorption efficiency value and a lowest-temperature set value are set in a charge-discharge controller; in the process of charging the storage battery, a singlechip control unit detects whether the absorption efficiency of the storage battery is lower than the minimum charging absorption efficiency value; when the absorption efficiency of the storage battery is not lower than the minimum charging absorption efficiency value, the storage battery is charged continuously; when the absorption efficiency of the storage battery is lower than the minimum charging absorption efficiency value, a temperature sensor detects whether the shell temperature of the storage battery is lower than the lowest-temperature set value; and when the shell temperature of the storage batteryis not lower than the lowest-temperature set value, the storage battery is in a floating charge state, and otherwise, a heating element charges the storage battery until the storage battery is in thefloating charge state. The method and device can be utilized to detect the charging efficiency of the storage battery in real time and realize the high-efficiency and low-energy-consumption charge ina low temperature environment, and can be applied to charging the storage battery by using a solar module in the low temperature environment particularly.
Description
technical field [0001] The invention relates to a charging and heating method for a low-temperature storage battery, which is particularly suitable for the requirement of charging the storage battery by a solar module in an outdoor low-temperature environment. Background technique [0002] In the communications and meteorological industries, the power supply of remote sites mainly uses solar power supply systems, which are mainly composed of solar modules, solar charge and discharge controllers, and batteries. When the working environment temperature of the battery is lower than -10°C, the battery may be frozen and cracked to fail. As the temperature drops, the electrolyte in the battery gradually solidifies, and its effective capacity drops significantly. Generally, when the temperature is -10°C, the charging capacity of the battery is only 40% of that at room temperature 25°C. When the temperature is lower than -30°C, the solar module cannot charge the battery. Therefore...
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IPC IPC(8): H01M10/44H02J7/00
CPCY02E70/40Y02E60/12Y02E60/10
Inventor 何峰肖友文谢贵久何迎辉金忠谢锋
Owner 48TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP