Circuit protection device and method of battery module
A battery module and circuit protection technology, which is applied to circuit devices, automatic disconnection emergency protection devices, emergency protection circuit devices, etc., can solve problems such as high cost, non-recoverable fuses, and inconvenient maintenance, and achieve fast response speed Effect
Active Publication Date: 2019-10-18
安徽沃博源科技有限公司
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Problems solved by technology
Existing battery modules use fuses for safety protection. When a fault occurs or the battery is abnormal, the fuse can only be blown quickly when it passes the rated fusing current, which may damage the battery. Moreover, the fuse cannot be restored after blown, which is inconvenient and expensive to maintain.
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[0018] In order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific implementations described in this specification are only for explaining the present invention, not for limiting the present invention.
[0019] see figure 1 , the present invention provides a battery module circuit protection device 100, including a protection structure 10, a relay 20, a current sensor 30 and a controller 40; the protection structure 10 is connected between the relay 20 and the current sensor 30, so The controller 40 is connected between the relay 20 and the current sensor 30 and is connected to the protection structure 10; the protection structure 10 includes a first tin layer 11, a second tin layer 12, and is located on the first tin layer The first protection un...
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Disclosed is a circuit protection device of a battery module; the circuit protection device comprises a protection structure, a relay, a current sensor and a controller; the protection structure is connected between the relay and the current sensor, and the controller is connected between the relay and the current sensor and is connected with the protection structure; the protection structure comprises a first tin layer, a second tin layer, a first protection unit and a second protection unit, wherein the first protection unit and the second protection unit are located between the first tin layer and the second tin layer; the relay is used for achieving on-off of a circuit of the battery module; the current sensor is used for detecting the current of the battery module; the first protection unit is used for regulating the current of the battery module; the second protection unit is used for detecting the temperature of the first protection unit; the first tin layer and the second tin layer are both used for wrapping the first protection unit and the second protection unit; and the controller is used for receiving the current information detected by the battery sensor and the temperature information detected by the second protection unit and transmitting on-off instructions to the relay according to the received current information and temperature information.
Description
【Technical field】 [0001] The invention relates to the technical field of batteries, in particular to a circuit protection device and method for a battery module. 【Background technique】 [0002] The power battery has the characteristics of high voltage and high current. In order to meet the power requirements of electric vehicles, it is necessary to combine multiple single batteries in series and parallel to form a battery module. Existing battery modules use fuses for safety protection. When a fault occurs or the battery is abnormal, the fuse can only be blown quickly when it passes the rated fusing current, which may damage the battery. Moreover, the fuse cannot be restored after blown, which is inconvenient and expensive to maintain. . [0003] In view of this, it is necessary to provide a novel battery module circuit protection device and method to overcome the above defects. 【Content of invention】 [0004] The object of the present invention is to provide a circuit p...
Claims
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IPC IPC(8): H02H7/18H02H3/04
CPCH02H7/18H02H3/04Y02E60/10
Inventor 李穷邵振东钱伟
Owner 安徽沃博源科技有限公司