By a News Reporter-Staff News Editor at Electronics Newsweekly -- According to news reporting originating from Alexandria, Virginia, by VerticalNews journalists, a patent by the inventor Cho, Man-Sik (Yongin-si, KR), filed on August 21, 2014, was published online on March 13, 2018.
The assignee for this patent, patent number 9917290, is Samsung SDI Co. Ltd. (Yongin-si, KR).
Reporters obtained the following quote from the background information supplied by the inventors: "Field
"The described technology relates generally to a battery module. More particularly, the described technology relates generally to a battery module having an improved holder structure to support rechargeable batteries.
"Description of the Related Technology
"A rechargeable battery differs from a primary battery in that it can be repeatedly charged and discharged, while the latter is incapable of being recharged.
"A low-capacity rechargeable battery is used in small portable electronic devices such as mobile phones, notebook computers, and camcorders, while a high-capacity rechargeable battery can be widely used as a power source for driving a motor of a hybrid vehicle, an electric vehicle, and the like.
"In addition, a high-capacity battery module normally includes a plurality of rechargeable batteries connected in series, and a rechargeable battery may be formed in a cylindrical or prismatic shape.
"The battery module is provided with a bus bar to electrically connect rechargeable batteries.
"The bus bar is welded to a terminal of the rechargeable batteries, and welding is performed while the bus bar is aligned above the rechargeable batteries.
"A jig and the like are used to locate the bus bar at a correct position, but this kind of work consumes a lot of time and involves complex manufacturing processes.
"In addition, locating the bus bar at a correct position is very difficult even if the jig is used.
"When external impacts or vibrations are delivered to the battery module, electrical contact failure between the bus bar and the terminal may occur.
"If contact failure occurs between the bus bar and the terminal, output power not only decreases as resistance increases, but also heat is generated, thereby resulting in performance deterioration and a shortened life expectancy of the rechargeable battery.
"The above information disclosed in this Background section is only for enhancement of understanding of the background of the described technology and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art."
In addition to obtaining background information on this patent, VerticalNews editors also obtained the inventor's summary information for this patent: "Accordingly, the present invention has been made in an effort to solve the problem described above, thus the purpose of the present invention is to provide a battery module which can easily and correctly align a bus bar.
"Another purpose of the present invention is to provide the battery module which can prevent contact failure between a bus bar and a terminal.
"The battery module according to an exemplary embodiment includes a plurality of rechargeable batteries having a terminal and edge portions, a holder combined to end portions of the rechargeable batteries and provided with a first fastening portion, and a bus bar bonded to the terminal, electrically connecting the rechargeable batteries, and having a second fastening portion to be connected with the first fastening portion.
"The first fastening portion may be fitted into the second fastening portion, and may be provided with a supporting protrusion formed in the holder, while the second fastening portion may be provided with a supporting hole which is formed in the bus bar and fitted into the supporting protrusion.
"The first fastening portion may be provided with a supporting groove, the second fastening portion may be provided with a supporting protrusion which is formed in the bus bar and fitted into the supporting groove, a protecting member covering the bus bar is provided therein, and the bus bar may be disposed between the protecting member and the holder. The protecting member may be formed with a third fastening portion to be fitted into the first fastening portion, and may be provided with tape attached to the bus bar.
"The holder may be provided with a first hole into which an end portion of one rechargeable battery is inserted, a second hole into which an end portion of another rechargeable battery neighboring the first one is inserted, and an upper plate partially covering the first and second holes, and the upper plate may be provided with the first fastening portion.
"The first fastening portion may be provided with a supporting rib protruding from the holder, and the second fastening portion may be provided with a cut-out portion which is formed in the bus bar and fitted into the supporting rib.
"The upper plate may be provided with a mounting groove connected to the first and second holes, the bus bar includes first and second connection portions and the connecting portion disposed between the first and second connection portions, and the mounting groove may be inserted with the first connection portion, the second connection portion, and the connecting portion.
"Two first connection portions disposed apart from each other are formed to be connected at one end portion of the connecting portion, two second connection portions disposed apart from each other are formed to be connected at the opposite end portion of the connecting portion, and the two first connection portions may be welded to one rechargeable battery and the two second connection portions may be welded to another rechargeable battery neighboring the first one.
"The bus bar includes a first supporting portion protruding from the first connection portion, formed in a curved shape, and contacting the upper plate, and the first supporting portion may be provided with the second fastening portion.
"The bus bar is provided with a second supporting portion protruding from the second connection portion, formed in a curved shape, and contacting the upper plate, the second supporting portion may be provided with the second fastening portion, and the first and second connection portions may be provided with a bonding protrusion protruding towards the rechargeable battery and being welded thereto.
"According to the present invention, since the holder and the bus bar are combined together, the bus bar can be easily and correctly disposed at a predetermined position, and contact between the bus bar and the terminal can be favorably maintained by preventing the bus bar from being shaken."
For more information, see this patent: Cho, Man-Sik. Battery Module Having Holder. U.S. Patent Number 9917290, filed August 21, 2014, and published online on March 13, 2018. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=9917290.PN.&OS=PN/9917290RS=PN/9917290
Keywords for this news article include: Asia, Business, Technology, South Korea, Samsung SDI Co. Ltd., Electronics Companies.
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