System and method for intelligently charging 12V storage battery through DC/DC converter
A technology of intelligent charging and storage battery, which is applied in the direction of secondary battery charging/discharging, battery circuit device, secondary battery, etc., which can solve the problems of not taking into account the influence of temperature on the performance of 12V storage battery, and achieve the purpose of prolonging the standing time and prolonging the Longevity, enhanced safety and efficacy effects
Inactive Publication Date: 2018-07-06
ZHIDOU ELECTRIC VEHICLE CO LTD
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Problems solved by technology
Its shortcoming is that it does not take into account the influence of temperature on the performance of 12V battery
Method used
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[0015] The technical solutions of the present invention will be further specifically described below through specific embodiments and in conjunction with the accompanying drawings.
[0016] A system for intelligently charging a 12V battery through a DC / DC converter, such as figure 1 As shown, it includes: a power battery 1 , a battery management unit 3 , a high voltage relay 2 , a capacity detection unit 6 , a temperature control switch 7 , a charging mode switching unit 8 , a temperature control module 9 and a temperature detection unit 10 . The first input terminal of the DC / DC converter 4 is connected to the V+ terminal of the power battery, the V- terminal of the power battery is connected to the second input terminal of the DC / DC converter 4 through the normally open contact of the high voltage relay, and the coil of the high voltage relay is connected to the battery management unit 3 The first end is connected, the first end of the capacity detection unit 6 is connected ...
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The invention relates to a system for intelligently charging a 12V storage battery through a DC / DC converter. The system comprises a capacity detecting unit, a temperature control switch, a charging mode switching unit, a temperature control module, and a temperature detecting unit; the first end of the capacity detecting unit is connected with a battery management unit; the second end of the capacity detecting unit is connected with the 12V storage battery; the normally open contact of the temperature control switch is connected in series between the normally closed contact of a high-voltagerelay and the second input end of the DC / DC converter; the coil of the temperature control switch is connected with the temperature detecting unit; the input end of the charging mode switching unit isconnected with the output end of the DC / DC converter; the output end of the charging mode switching unit is connected with the 12V storage battery; the temperature detecting unit is connected with the charging mode switching unit and the temperature control module; and the temperature control module is disposed inside the 12V storage battery, is connected with a power battery, and is powered by the power battery.
Description
technical field [0001] The invention relates to the technical field of charging 12V storage batteries for electric vehicles, in particular to a system and method for intelligently charging 12V storage batteries through a DC / DC converter. Background technique [0002] In order to ensure that the battery can be stored for a longer period of time under high or low temperature conditions and reduce the frequency of frequent charging, it is required that the actual capacity of the battery should not be lower than a certain threshold. Temperature has a great influence on the performance of the battery. When the battery is charged, an electrochemical reaction occurs on the electrodes. The higher the temperature, the higher the activity of the active materials in the battery, the lower the viscosity of the electrolyte, and the lower the resistance. The lower the temperature during charging, the worse the charging capacity of the battery, and it is necessary to increase the charging ...
Claims
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Login to View More IPC IPC(8): H02J7/00H01M10/44
CPCH01M10/443H02J7/0048H02J7/0091Y02E60/10
Inventor 林霞鲍文光焦玉强闫优胜樊晓浒何志刚
Owner ZHIDOU ELECTRIC VEHICLE CO LTD