Lithium battery management system and control method thereof
A battery management system and management system technology, applied in the field of lithium battery management system and its control, can solve the problems of high cost and complicated operation, and achieve the effect of convenient operation and cost reduction
Inactive Publication Date: 2015-10-28
CHANGZHOU GLOBE CO LTD
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Problems solved by technology
Due to the above-mentioned lithium battery management system, it is necessary to set a special switch on the battery pack to realize the opening and closing, the operation is complicated, and the cost is high
Method used
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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] figure 1 It is a schematic diagram of the lithium battery management system of the present invention. Such as figure 1 As shown, the external device described in the present invention specifically refers to a DC garden tool or a DC power tool driven by a lithium battery pack. Products, or power tools such as electric drills, electric circular saws, and reciprocating saws. therefore, figure 1 The shown battery pack composed of several lithium batteries, the battery management system control unit, the batter...
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The present invention discloses a lithium battery management system and a control method thereof. The lithium battery management system comprises a battery pack used for providing power and composed of a plurality of lithium cores; a battery pack output switch used for controlling a battery pack output current to conduct or cut off, wherein the battery pack output switch is a normally open switch; a battery management system control unit used for controlling the battery pack output switch to be turned on or turned off; and an output resistor in parallel arrangement with the battery pack output switch. According to the present invention, by connecting or disconnecting the battery pack possessing the lithium battery management system and an external device, the turn-on or turn-off of the lithium battery management system is realized, and the functions of a special-purpose switch in the prior art are realized when users operate the external device. The lithium battery management system and the control method thereof of the present invention have the beneficial effects of reducing cost, being convenient to operate, etc.
Description
technical field [0001] The invention relates to a lithium battery management system and a control method thereof, in particular to a lithium battery management system with simple operation and low power consumption for garden tools and electric tools and a control method thereof. Background technique [0002] At present, many lithium battery management systems on the market must completely shut down their own circuits in order to reduce power consumption when they are not working. Therefore, the user needs to turn on the special start switch on the battery pack before using the external equipment normally. The external device can be a garden tool or a power tool. Due to the above-mentioned lithium battery management system, a special switch needs to be set on the battery pack to realize opening and closing, and the operation is complicated and the cost is high. Contents of the invention [0003] In order to solve the above technical problems, the present invention provide...
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IPC IPC(8): H02J7/00
CPCH01M10/42H02J7/00Y02E60/10
Inventor 庄宪
Owner CHANGZHOU GLOBE CO LTD