Series-connection battery system with automatic bypass function
A technology of connecting batteries in series and automatic bypass, which is applied to battery circuit devices, current collectors, electric vehicles, etc. It can solve the problems of rapid shutdown of electric vehicles, control system crashes, inconvenience, etc., and achieve the effect of avoiding shutdowns and control system crashes
Inactive Publication Date: 2011-09-21
JOY RIDE TECH +1
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[0002] Generally, the power source of electric vehicles uses multiple battery units connected in series, and each battery unit is composed of multiple batteries and a battery circuit. When one of the battery units fails, due to the design of the series circuit, the general processing method will be Automatically open the entire circuit (open), so as to avoid the continuous discharge of the faulty battery unit to achieve the protection function. However, a momentary power failure will cause the electric vehicle to stop rapidly and the control system to crash. Therefore, users must use a tow truck to take the electric car home or return it to the car dealer for maintenance, which is quite inconvenient
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[0014] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0015] Such as figure 1 , figure 2 As shown, the preferred embodiment of the series battery system 200 with automatic bypass function of the present invention includes a plurality of battery units 20 , a charging unit 30 and a discharging unit 40 .
[0016] Each battery unit 20 includes a high potential end 211, a low potential end 212, a first switch module 221, a second switch module 222, multiple batteries 23 connected in series, a charge command port 241, and a charge state port 242 , a discharge command port 251 , a discharge status port 252 and a control module 26 .
[0017] The battery units 20 are connected in series along the direction from the high potential end 211 to the low potential end 212. In this embodiment, there are three battery units 20, and the number of battery units 20 actually connected in series is not limited.
[0018] T...
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The invention discloses a series-connection battery system with an automatic bypass function, which comprises a plurality of battery units, wherein each battery unit comprises a first switch module, a second switch module, a plurality of serially-connected storage batteries, a charging command port, a charging status port and a control module; the battery units are sequentially connected along the direction from a high potential to a low potential. The first switch module is serially connected between the high potential and the low potential. The second switch module and the storage battery are serially connected between the high potential and the low potential. When the control module of each battery unit detects that the voltage of any storage battery does not accords with a voltage standard range, the control module sequentially enables the second switch module to be disconnected and the first switch module to be connected and outputs a bypass status signal through the charge status port. The series-connection battery system can be used for interrupting charge or discharge of failed battery units, and can ensure that the normal battery units keep connection of a serially-connected loop.
Description
technical field [0001] The invention relates to a series battery system, in particular to a series battery system with an automatic bypass function. Background technique [0002] Generally, the power source of electric vehicles uses multiple battery units connected in series, and each battery unit is composed of multiple batteries and a battery circuit. When one of the battery units fails, due to the design of the series circuit, the general processing method will be Automatically open the entire circuit (open), so as to avoid the continuous discharge of the faulty battery unit to achieve the protection function. However, a momentary power failure will cause the electric vehicle to stop rapidly and the control system to crash. Therefore, the user must rely on a tow truck to bring the electric car home or return it to the car dealer for maintenance, which is quite inconvenient. Contents of the invention [0003] The object of the present invention is to provide a series ba...
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IPC IPC(8): H02J7/02H02H7/18
Inventor 阮家文魏益堂
Owner JOY RIDE TECH