Power disconnection device and battery system
A power cut-off and battery system technology, applied in circuit devices, battery circuit devices, secondary batteries, etc., can solve problems such as safety accidents and safety hazards, and achieve the effects of improving safety, reducing safety hazards, and improving heat dissipation efficiency.
Active Publication Date: 2018-10-16
HUATING HEFEI POWER TECH
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Problems solved by technology
[0003] After research, it is found that the current bank inside the BDU will generate a lot of heat during the process of high-power charging and discharging. If it cannot be dissipated in time, there will be serious safety hazards and even cause safety accidents
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[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0037] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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The embodiment of the invention provides a power disconnection device and a battery system, and relates to the technical field of power batteries. The power disconnection device comprises a first current row, a second current row, a relay, a heat-conducting component and a connecting piece of a liquid cooling pipe; the first current row connected to a positive pole of a power supply and the secondcurrent row connected to a negative pole of the power supply are connected with the relay electrically, and the relay controls disconnection and closing of a load circuit formed by the first currentrow and the second current row; the heat-conducting component is in contact with the first current row and the second current row, and the heat-conducting component is connected with an external liquid cooling pipe through the connecting piece of the liquid cooling pipe, thereby transferring heat generated by the first current row and the second current row to the liquid cooling pipe through the heat-conducting component, and improving the heat dissipation performance of the power disconnection device and the safety of the battery system.
Description
technical field [0001] The invention relates to the technical field of power batteries, in particular to a power cut-off device and a battery system. Background technique [0002] BDU (Battery Disconnect Unit, power cut-off unit) is an important part of the battery system. It can control the on-off of the high-voltage circuit through the control signal of BMS (Battery Management System, battery management system), so as to manage the charge and discharge of the battery. [0003] After research, it is found that the current bank inside the BDU will generate a lot of heat during the process of high-power charging and discharging. If it cannot be dissipated in time, there will be serious safety hazards and even cause safety accidents. Contents of the invention [0004] In order to solve the above problems, the object of the present invention is to provide a power cut-off device and a battery system, so as to improve the heat dissipation performance of the power cut-off unit B...
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IPC IPC(8): H02J7/00H01M10/613
CPCH01M10/613H02J7/0031H02J7/0042H02J7/00304Y02E60/10
Inventor 韩雷苏俊松李树民袁承超劳力马俊峰王扬周鹏
Owner HUATING HEFEI POWER TECH