Charging and discharging protection device and battery device
A protection device, charging and discharging technology, used in emergency protection circuit devices, electrical components, etc., can solve the problems of layout, disordered layout, etc., and achieve the effect of saving electric energy
Active Publication Date: 2010-12-22
LUYUAN ELECTRIC VEHICLE SHANDONG
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Problems solved by technology
[0002] The current battery pack protection system uses a protection board to control the charge and discharge protection. The disadvantages of this protection method are: 1. If more batteries are connected in series, the more lines are used to sample the battery voltage, making the line 2. The more batteries connected in series, the higher the voltage of the battery pack, which puts higher demands on the durability of the protection board; 3. The more batteries connected in series, a unified reference ground is required , which requires a very high accuracy of voltage sampling
[0003] Therefore, there is a need for a new protection method for battery charge and discharge, which can solve the above shortcomings, namely: 1. Solve the layout problem of the line used to detect the battery; 3. It can ensure accurate detection of battery voltage
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[0025] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0026] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the present invention is not limited to the specific embodiments disclosed below limit.
[0027] figure 1 is a block diagram of a charge and discharge protection device for a battery pack according to the present invention.
[0028] Such as figure 1 As shown, the present invention provides a charge and discharge protection device 100 for a battery pack, the battery pack includes at least one battery unit (not shown), the charge and discharge protection device 100 includes: at least one p...
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The invention discloses a charging and discharging protection device for a battery pack. The battery pack comprises at least one battery unit; the charging and discharging protection device comprises at least one protection circuit, a first bus and a charging and discharging control circuit, wherein the protection circuit is connected to a battery unit corresponding to at least one protection circuit for detecting the battery unit to obtain a control signal; the at least one protection circuit is used for transmitting the control signal to the charging and discharging control circuit through the first bus; and the charging and discharging control circuit responds to the control signal in order to determine whether the battery pack is stopped to charge or discharge. The invention also discloses a battery device with a charging and discharging protection function. By the technical scheme, charging and discharging protection can be effectively carried out on the battery pack or the battery device.
Description
technical field [0001] The invention relates to battery technology, in particular to a charging and discharging protection device for a battery pack and a battery device with a charging and discharging protection function. Background technique [0002] The current battery pack protection system uses a protection board to control the charge and discharge protection. The disadvantages of this protection method are: 1. If more batteries are connected in series, the more lines are used to sample the battery voltage, making the line 2. The more batteries connected in series, the higher the voltage of the battery pack, which puts higher demands on the durability of the protection board; 3. The more batteries connected in series, a unified reference ground is required , which also requires very high precision for voltage sampling. [0003] Therefore, there is a need for a new protection method for battery charge and discharge, which can solve the above shortcomings, namely: 1. Sol...
Claims
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IPC IPC(8): H02H7/18
Inventor 倪捷张芳勇陈文胜盛专成陈校校
Owner LUYUAN ELECTRIC VEHICLE SHANDONG