WO2018034471A1 - Structure of battery pack for cylindrical battery - Google Patents

Structure of battery pack for cylindrical battery Download PDF

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Publication number
WO2018034471A1
WO2018034471A1 PCT/KR2017/008840 KR2017008840W WO2018034471A1 WO 2018034471 A1 WO2018034471 A1 WO 2018034471A1 KR 2017008840 W KR2017008840 W KR 2017008840W WO 2018034471 A1 WO2018034471 A1 WO 2018034471A1
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WO
WIPO (PCT)
Prior art keywords
outer frame
battery
terminal
grooves
battery pack
Prior art date
Application number
PCT/KR2017/008840
Other languages
French (fr)
Korean (ko)
Inventor
양기일
김혜란
Original Assignee
(주)엠피에스코리아
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Publication date
Application filed by (주)엠피에스코리아 filed Critical (주)엠피에스코리아
Priority to JP2018549303A priority Critical patent/JP6804550B2/en
Publication of WO2018034471A1 publication Critical patent/WO2018034471A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/512—Connection only in parallel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/548—Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a battery pack structure for a cylindrical battery, and more specifically, a small-capacity cylindrical lithium-ion battery cell that is easy to purchase is connected in series to increase the voltage, and connected in parallel to increase the amount of current to manufacture a large capacity battery pack. It relates to a battery pack structure for a cylindrical battery having an easy structure.
  • the present invention is to assemble the cylindrical battery and the components and the shape, structure, such as the bolt structure for fastening the case and the spring and the terminal and the spring and the casing of the plastic material to make a large capacity battery pack easy to separate again
  • the branch relates to a battery pack structure for a cylindrical battery.
  • Lithium batteries can be charged and discharged for hundreds of thousands of times for a long time, and are widely used in IT devices such as electric tools, auxiliary batteries, mobile phones, and laptops among secondary batteries. Recently, ESS for electric vehicles, solar power, wind power, etc. It is also used as.
  • the 18650 lithium battery has a cylindrical size of 18mm in diameter and 65mm in height, which is the most commonly produced form in the world, and is used for driving electric vehicles in American Tesla and Audi in Germany.
  • the anode and cathode terminals of the battery cell are often welded by using another external bus bar.
  • the current capacity can be increased through parallel connection (cathode and cathode), and the voltage can be increased through series connection (cathode and anode of another battery).
  • welding is performed using a nickel plate, which is the same material as the anode and cathode of the battery cell.
  • Commonly used electric devices are 12V, 24V, 48V, 72V, 110V, 200V, 380V, etc., so several to several dozen series connections are required, depending on the amount of energy used. May require hundreds or thousands of parallel connections.
  • a plurality of cells are connected by using spot welding or laser welding, which instantaneously applies voltage between a separate pole plate and a battery electrode.
  • the current capacity of the small battery can be increased by a desired amount by connecting (parallel connection) the positive and negative poles and the negative and negative poles of the battery.
  • This is called a battery module that has the same voltage as one battery cell and has an increased current capacity.
  • Multiple battery cells can be connected in parallel to increase the desired voltage by connecting multiple (+) poles of one battery module with increased current capacity and multiple (-) poles of another battery module (serial connection). .
  • the above problems cannot be solved by the parallel / parallel connection structure through ultrasonic spot welding or laser welding.
  • some of the battery cells may experience problems such as premature aging, terminal resistance increase, heat loss of the cell, and internal resistance, and thus the performance of the entire battery pack.
  • the present invention is to solve the above problems, a structure that is easy to connect a plurality of cylindrical battery cells in parallel and in series, by connecting a plurality of small-capacity cylindrical cells in parallel / parallel through a simple assembly operation, vibration
  • the present invention provides a battery pack structure for a cylindrical battery in which the contact state of the terminal is stably maintained.
  • the present invention is easy to replace the individual battery cells by detaching or disassembling the battery module or battery cell case from the battery pack coupled when a problem occurs in the individual battery of the battery module or a battery cell constituting the battery pack.
  • a battery pack structure in which a plurality of battery cells are connected in parallel / parallel, when a problem occurs in one battery cell, the problem does not transfer to another battery cell, and the battery pack structure for a cylindrical battery can keep only one battery unusable. It is to provide.
  • the battery pack structure for a cylindrical battery includes a battery insertion groove formed so that four small cylindrical battery cells are inserted side by side and help the air flow along the circumference of the insertion groove.
  • the first outer frame having a plurality of circular slots and a second outer frame having a battery insertion groove so that the opposite electrode of the cell is inserted at the opposite side of the cylindrical battery cell in the same form as the first outer frame.
  • Four terminal grooves each having a terminal shape are provided to allow the electrode terminals to be seated, respectively, and a pair of outer frame covers positioned at both ends of the outer frame and engaged with the outer frame, respectively, at the bottom of the outer frame cover. Inserted into the terminal groove, respectively to receive the power of the battery cell through the spring in contact with the outer frame It characterized in that it comprises a four electrode terminal provided with a terminal bolt groove coupled to the spring.
  • the battery pack structure for a cylindrical battery is manufactured to be bolted to facilitate assembly of a unit module including a battery cell, and when the battery cells are connected in series or in parallel, the (+) and (-) poles No separate busbar (nickel plate) is welded to the assembly, making assembly and disassembly easy, enabling efficient use and management of battery packs.
  • the battery pack structure for a cylindrical battery to improve the performance of the entire battery pack by disassembling and replacing only a few battery cells that are a problem when a problem occurs in each battery cell in a battery pack combined with a plurality of battery modules It can be maintained and used over time, providing the ability to efficiently maintain and manage the performance of a battery pack at low cost.
  • the battery pack structure for a cylindrical battery is a structure in which the battery cells can be connected in series / parallel only by assembling method, not by spot welding. As the current flows through a simple surface contact, the assembly is not increased and the resistance is not assembled. Provides an effect that is easy to maintain through.
  • the battery pack structure for a cylindrical battery provides a structure that is easy to stack a plurality of cylindrical battery cells in series and parallel, easy to assemble and disassemble, stable contact state of the terminal even during vibration
  • the heat generated from the pole plate and the unit battery cell itself during the use of the battery product can be easily dissipated through the space between the outer frame, thereby preventing the fire caused by the battery.
  • the battery pack structure for a cylindrical battery has a positive polarity of a battery cell which is grooved so that the polarity can be confirmed when the battery is connected to the (+) and (-) polarities of the first outer frame and the second outer frame. Checking between the negative terminal and the negative terminal provides the effect of preventing a short circuit between the batteries.
  • the battery pack structure for a cylindrical battery can be produced by combining the first outer frame and the second outer frame around the battery cell including the negative terminal and the positive terminal, the first outer frame and the first 2
  • the outer frame combines terminals and springs to connect the positive and negative poles, and combines each external frame to the first external frame and the second external frame, respectively. It can be freely adjusted to provide convenience in use.
  • FIG. 1 is an exploded view showing a battery pack structure according to an embodiment of the present invention.
  • Figure 2 is a perspective view showing a fastening state of the battery pack according to the present invention
  • FIG 3 is a front view of a battery pack structure according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view and a perspective view of the structure of the outer frame of the battery pack according to FIG.
  • 5 to 6 are a cross-sectional view and a perspective view of the structure of the outer frame cover of the battery pack according to FIG.
  • FIG. 7 to 10 are perspective views showing the shape and assembly structure of the electrode terminal of the battery pack structure according to FIG.
  • FIG. 11 is a perspective view showing the form of a spring of the battery pack structure according to FIG.
  • FIG. 12 is a perspective view showing the shape of a fixing screw of the battery pack structure according to FIG.
  • FIG. 13 to 14 is a perspective view of a coupling key used for the coupling between the outer frame according to the present invention
  • FIG. 15 is a perspective view illustrating a structure in which a plurality of battery modules are combined by using a battery pack structure combining key according to another embodiment of the present invention.
  • the battery pack structure of the present invention is largely the outer frame (100a, 100b), the outer frame cover 200, the electrode terminal 300 And it is composed of a spring 400, the outer frame is composed of a first outer frame 100a and a second outer frame 100b having a fastening structure to each other.
  • the first outer frame 100a has a plurality of battery insertion grooves 110 formed therein so that four small cylindrical battery cells 700 are inserted in parallel with each other, and a plurality of internal frames 100a help flow of air along the circumference of the insertion groove 110.
  • Circular slots 111 are provided, and the second outer frame 100b has the same shape as that of the first outer frame 100a and the first outer frame 100a and is opposite to the cell on the opposite side of the cylindrical battery cell 700.
  • the battery insertion groove is provided to be inserted into the first external frame 100a.
  • the outer frame covers 200a and 200b are respectively provided with four terminal grooves 210 having a terminal shape in which electrode terminals 300 are seated under the cover for bolting, respectively, of the first outer frame 100a.
  • a first outer frame cover 200a positioned at an end and bound to the first outer frame 100a, and a second outer frame cover positioned at an end of the second outer frame 100b and bound to a second outer frame 100b. 200b is formed.
  • the electrode terminal 300 is composed of four terminals, each of which is inserted into the terminal groove 210 at the bottom of the outer frame covers 200a and 200b, respectively, and the springs contacting the outer frames 100a and 100b, respectively.
  • a terminal bolt groove 310 coupled to the spring 400 is provided to receive power from the battery cell 700 through the 400.
  • the outer frame 100 may be a first embodiment.
  • the outer frame 100a and the second outer frame 100b are fastened to each other so that the structures are formed to correspond to each other.
  • a plurality of circular shapes are formed therein to assist the flow of air along the circumference of the formed battery insertion groove 110.
  • Slot 111 is formed, in this case, six or eight circular slots are provided.
  • Center holes 120a and 120b are formed for air flow or cooling generated in the center according to the operation of the battery cells 700 inserted and positioned in the center of the four battery insertion grooves 110, and each outer frame 100a is formed. It is integrally formed with the 100b, the insertion guides (131a, 131b) are laid two diagonally in the diagonal direction, the fastening holes 132a, which are integrally formed at the ends of the insertion guides (131a, 131b) to insert the fastening bolts Two guide grooves 133a and 133b having guide bars 130a and 130b having 132b formed thereon, and the guide bars 130a and 130b seated in diagonal directions and inserted through the fastening holes 132a and 132b, respectively. It is provided.
  • the fastening holes of the guide bars of the first outer frame and the guide grooves of the second outer frame are respectively fastened.
  • first coupling key grooves 136, 137, 138, and 139 are respectively provided to allow a plurality of external frames to be coupled in a slot shape at the center of the side of each outer frame, and four protrusions disposed on the outer frames 100a and 100b.
  • 145, 146, 147, and 148 are formed to be inserted into and fastened with the outer frame covers 200a and 200b.
  • the positive and negative poles of the battery cell 700, the spring 400, and the hexagonal terminals are coupled to each other.
  • the terminal hole 140 is formed.
  • the outer frame Covers 200a and 200b are positioned at both ends of the outer frames 100a and 100b, respectively, to be coupled to the outer frame, and have four terminal grooves in the form of terminals so that the electrode terminals 300 for bolt coupling may be respectively seated.
  • 210a and 210b are provided, respectively. That is, four terminal grooves 211a, 212a, 213a and 214a of the first outer frame cover 200a and four terminal grooves 211b, 212b, 213b and 214b of the second outer frame cover 200b are formed.
  • the second coupling key grooves 211, 212, 213, and 214 are provided, and when the external frame 100a or 100b is fastened, the second coupling key grooves 211, 212, 213, and 214 face the center holes 120a and 120b of the external frame and seat the four battery insertion grooves 110.
  • Air flow holes 220a and 220b for air flow or cooling of heat generated in the center of the cell 700 are formed, and the outer frame covers 200a and 200b and the outer frames 100a and 100b are coupled and fastened.
  • Hole holes for fixing screws are provided at each time, and protective protrusions 230 protruding on the outer frame covers 200a and 200b are provided so that the fixing screws are inserted into the hole holes and are not electrically contacted when fastened.
  • the electrode terminal 300 is seated independently of the terminal groove 210 of the lower portion of the outer frame cover (200a, 200b) to supply power to the battery cell 700 from the upper outer frame cover (200a, 200b).
  • Nut groove is provided for receiving.
  • the electrode terminal has a fastening structure of the square plate and the nut, as shown in Figure 7 to 10 attached, or having a hexagonal rod, octagonal rod structure, or by processing a non-hexagonal spline-shaped rod inside You can optionally apply it in tabbed form.
  • the electrode terminal 300 is provided with a tab for screwing therein, a copper alloy material having high electrical conductivity is formed, and is plated with tin or nickel to prevent corrosion.
  • Battery cells 700 are coupled to the first outer frame cover 200a and the second outer frame cover 200b, and four springs (+) and (-), respectively, of the battery cells 700 are coupled to each other.
  • 400 provides a passage through which current flows.
  • it is connected to the back of the battery cell through the hole of the outer frame cover to provide a passage through which current flows through the bolt fastening from the outside.
  • the spring 400 has a flat shape having a square cross section by tin-plating a bronze / brass material, and fits into the bolt groove 310 of the electrode terminal 300. It is seated in such a way that even when the outer frames 100a and 100b and the outer frame covers 200a and 200b are deformed, the bronze remains in contact with the positive and negative poles of the battery cell so that the current flows smoothly.
  • Tin-plated brass material has a flat rectangular cross section.
  • the present invention is that the first outer frame (100a) and the second outer frame (100b) is coupled to each other and fastened to the first outer frame cover (200a) and the second outer frame cover (200b), respectively, the first outer frame After the fastening hole 132a of the guide bar 130a of the guide bar 130a of the 100a is coupled to the fastening groove 132a, the first outer frame 100a and the first outer frame cover 200a through the fixing screw 500, In addition, the second outer frame 100b and the second outer frame cover 200b are strongly bound while penetrating the plastic material without a separate nut.
  • the fixing screw 500 is formed with the attached Figure 12, the outer frame and the outer frame cover is bound through a total of eight fixing screws.
  • a plurality of external frames may be connected using the coupling key 600 illustrated in FIGS. 13 to 14, and the first coupling key grooves 136, 137, 138, and 139 of the external frame may be stacked in multiple stages.
  • a plurality of outer frames (100a, 100b) by inserting four coupling keys (601, 602, 603, 604) between the second coupling key grooves (211, 212, 213, 214) of the outer frame cover (200a, 200b) facing each other). And through the terminal groove 210 of the outer frame cover (200a, 200b) as shown in Figure 15 attached to the plurality of outer frame (100a, 100b) through a parallel connection in parallel to provide the desired electric shock voltage and power. .
  • the first coupling key grooves 136, 137, 138 and 139 of the outer frame are located at the center edges of the rectangle.
  • a second coupling key groove 211, 212, 213, and 214 of the outer frame cover are formed, and a plurality of battery modules 1000 are stacked by inserting the coupling key 600 into the coupling key groove to form a solid battery pack. Can be completed.
  • the battery pack structure of the present invention is the positive and negative states of the battery cell through the terminal slot 140 so that the polarity can be confirmed when the battery is connected to the ends of the first outer frame (100a) and the second outer frame (100b) You can check whether the polarity of the battery cell changes.
  • the external coupling key groove has a structure of a complete unit module by combining an external frame and an external frame, and then connects a plurality of unit modules to create a necessary voltage and capacity. There is a home.
  • a battery pack having a structure of 4S 4P for example, 8 battery packs should be connected with + poles + poles and-poles-poles, so a unit containing two battery cells and a unit module containing three battery cells Parallel connection is possible by bolting one module to the busbar connection groove of the outer frame.
  • the coupling key groove is formed so as to connect a plurality of unit modules in the center of the square, the shape of the coupling key groove
  • 100a first outer frame 100b: second outer frame
  • 131a, 131b Insertion guide 132a, 132b: Fastening hole
  • 200a first outer frame cover 200b: second outer frame cover
  • 210a, 210b terminal grooves 211, 212, 213, and 214: second binding key hum

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Secondary Cells (AREA)

Abstract

The present invention relates to the structure of a battery pack for a cylindrical battery, comprising: a first outer frame which has battery insertion recesses such that four small cylindrical battery cells are respectively inserted side by side thereinto, and which is provided with a plurality of round slots inside so as to help the flow of air along the circumferences of the insertion recesses; a second outer frame in the same shape as the first outer frame and provided with battery insertion recesses such that opposite electrodes of the cylindrical battery cells are inserted thereinto on an opposite side of the cells; a pair of outer frame covers each of which is provided with four terminal-shaped terminal recesses such that electrode terminals for bolting can be respectively rested therein, and which are respectively located at the ends of the outer frames and thereby engaged with the outer frames; and four electrode terminals respectively inserted into the terminal recesses underneath the outer frame covers, and provided with terminal bolt recesses engaged with springs, which are respectively in contact with the outer frames, so as to receive power from the battery cells through the springs.

Description

원통 전지용 배터리 팩 구조Battery pack structure for cylindrical cell
본 발명은 원통 전지용 배터리 팩 구조에 관한 것으로, 보다 구체적으로는, 구입하기가 용이한 소용량 원통형 리튬이온 배터리 셀을 직렬로 연결하여 전압을 높이고, 병렬로 연결하여 전류량을 증대하여 대용량 배터리 팩을 제작하기 용이한 구조를 갖는 원통 전지용 배터리 팩 구조에 관한 것이다.The present invention relates to a battery pack structure for a cylindrical battery, and more specifically, a small-capacity cylindrical lithium-ion battery cell that is easy to purchase is connected in series to increase the voltage, and connected in parallel to increase the amount of current to manufacture a large capacity battery pack. It relates to a battery pack structure for a cylindrical battery having an easy structure.
또한, 본 발명은 원통형 배터리를 조립하고 재차 분리가 용이한 대용량 배터리 팩을 제작할 수 있도록 플라스틱 소재의 결합 구조와 전류를 흐르게 하는 단자 및 스프링 그리고 케이스를 고정하는 볼트 등의 구성요소 및 형상, 구조를 가지는 원통 전지용 배터리 팩 구조에 관한 것이다.In addition, the present invention is to assemble the cylindrical battery and the components and the shape, structure, such as the bolt structure for fastening the case and the spring and the terminal and the spring and the casing of the plastic material to make a large capacity battery pack easy to separate again The branch relates to a battery pack structure for a cylindrical battery.
현재 많은 곳에서 전기에너지를 저장하는 장치로 배터리를 사용하고 있으며, 1차 전지와 2차 전지 대부분은 원통형(Cylindrical), 각형(Prismatic), 파우치 (Pouch)의 형태를 가지고 있다. 재충전하여 사용이 가증한 2차 전지는 스마트폰, 노트북 등 휴대용 전자기기부터 배터리를 이용한 충전 가능한 전기차 등 광범위하게 사용되고 있으며, 최근에는 여러 개의 배터리 셀을 직/병렬로 연결하여 태양광, 풍력 등에서 만들어진 전기를 저장하여 사용하는 ESS(Energy Storage System) 등에도 사용되고 있다. Currently, many places use batteries as a device for storing electrical energy, and most of primary and secondary batteries have cylindrical, prismatic, and pouch types. Rechargeable secondary batteries are widely used in portable electronic devices such as smartphones and laptops, and rechargeable electric vehicles using batteries. Recently, a plurality of battery cells are connected in parallel and in parallel to be used in solar and wind power. It is also used in ESS (Energy Storage System) that stores and uses electricity.
리튬전지는 장시간 수백, 수천회의 충전과 방전이 가능하므로 2차 전지 중에서 전동공구, 보조배터리, 핸드폰, 노트북 등 IT 기기에 많이 사용되고 있으며, 최근에는 전기자동차 및 태양광, 풍력등과 결합된 ESS용으로도 사용되고 있다. 특히 18650 리튬전지는 지름 18mm, 높이 65mm의 원통형 치수가 표준화 되어 있어 전 세계에서 가장 많이 일반적으로 생산되는 형태로 미국의 테슬러 자동차와 독일의 아우디 등에서 전기자동차 구동용으로 적용하고 있다.  Lithium batteries can be charged and discharged for hundreds of thousands of times for a long time, and are widely used in IT devices such as electric tools, auxiliary batteries, mobile phones, and laptops among secondary batteries. Recently, ESS for electric vehicles, solar power, wind power, etc. It is also used as. In particular, the 18650 lithium battery has a cylindrical size of 18mm in diameter and 65mm in height, which is the most commonly produced form in the world, and is used for driving electric vehicles in American Tesla and Audi in Germany.
원통형 배터리 셀을 직/병렬 형태로 연결하는 방법에는 배터리 셀의 양극과 음극 단자를 또 다른 외부의 연결판 (Bus Bar)를 이용하여 용접을 하는 경우가 대부분이다. 이때 병렬 연결(양극끼리 그리고 음극끼리의 연결)을 통해 전류 용량을 증가시킬 수 있으며, 직렬연결(양극과 또다른 전지의 음극을 연결)을 통해 전압을 올릴 수 있다. 주로 배터리셀의 양극과 음극과 동일한 소재인 니켈판을 이용하여 용접을 하는 경우가 대부분이다. 통상 사용되는 전기장치(휴대용에서 전기자동차용, ESS용)는 12V, 24V, 48V, 72V, 110V, 200V, 380V 등이므로 수 개에서 수 십 개의 직렬 연결이 필요하며, 사용되는 에너지량에 따라 수개에서 수백개, 수천개의 병렬 연결이 필요한 경우도 있다.  In the case of connecting a cylindrical battery cell in a parallel / parallel form, the anode and cathode terminals of the battery cell are often welded by using another external bus bar. At this time, the current capacity can be increased through parallel connection (cathode and cathode), and the voltage can be increased through series connection (cathode and anode of another battery). In most cases, welding is performed using a nickel plate, which is the same material as the anode and cathode of the battery cell. Commonly used electric devices (portable to electric vehicles, ESS) are 12V, 24V, 48V, 72V, 110V, 200V, 380V, etc., so several to several dozen series connections are required, depending on the amount of energy used. May require hundreds or thousands of parallel connections.
종래의 방법으로는 배터리의 양극과 음극을 직렬과 병렬로 연결할 때 별도의 극판과 배터리 전극 사이를 순간적으로 전압을 가하는 점(Spot) 용접 또는 레이져 용접 등을 이용하여 연결하는 형태로 다수의 셀을 직렬과 병렬로 연결할 수 있다. 즉, 이 경우 전지의 (+) 극과 (+) 극, (-) 극과 (-) 극을 연결하여(병렬연결) 소형 배터리의 전류 용량을 원하는 양만큼 증가시킬 수 있다. 이를 한 개의 배터리 셀과 동일한 전압을 가지면서 전류 용량만 증가된 배터리 모듈이라고 부른다. 다수개의 배터리 셀이 병렬로 연결되어 전류용량이 증가된 하나의 배터리 모듈의 (+)극과 또 다른 하나의 배터리 모듈의 (-)극을 다수개 연결하면(직렬연결) 원하는 전압까지 올릴 수 있다. In the conventional method, when connecting the positive and negative electrodes of a battery in series and parallel, a plurality of cells are connected by using spot welding or laser welding, which instantaneously applies voltage between a separate pole plate and a battery electrode. Can be connected in series and in parallel. In this case, the current capacity of the small battery can be increased by a desired amount by connecting (parallel connection) the positive and negative poles and the negative and negative poles of the battery. This is called a battery module that has the same voltage as one battery cell and has an increased current capacity. Multiple battery cells can be connected in parallel to increase the desired voltage by connecting multiple (+) poles of one battery module with increased current capacity and multiple (-) poles of another battery module (serial connection). .
그러나, 소용량 원통 셀 다수개를 직/병렬로 연결해서 사용하는 전지팩의 구조에서는 경우에 따라 수천 개를 직렬과 병렬로 연결될 수 있으며, 이런 경우 아래와 같은 몇 가지 문제를 해결해야 하는데, 이는 다수개의 배터리 셀을 Spot 용접을 통해 결합시키는 경우 진동으로 인한 접점 불량 또는 용접불량 등이 다수 발생하며, 이 경우 접점 불량 부위를 찾아내기도 어렵고, 찾아낸다고 하드래도 이를 교정하여 다시 Spot 용접을 통해 결합하는 작업은 전기적으로 쇼트 발생가능성과 대형 배터리 팩 자체의 고중량 등으로 매우 어려운 작업으로 각 원통 셀을 직/병렬로 연결할 때 직/병렬 체결 후 손쉽게 분리하는 방법을 해결해야 한다.However, in the structure of a battery pack that uses a plurality of small-capacity cylindrical cells connected in series / parallel, in some cases, several thousand can be connected in series and in parallel, in this case, some of the following problems must be solved, When the battery cells are joined by spot welding, a lot of contact defects or welding defects occur due to vibration, and in this case, it is difficult to find a defective contact point. This is a very difficult task due to the possibility of electrical short and the heavy weight of the large battery pack itself. Therefore, when connecting each cylindrical cell in series / parallel, it is necessary to solve the method of easy separation after the series / parallel connection.
기존의 체결 방식에서는 초음파 점 용점(Spot Welding)이나 레이저 용접을 통한 직/병렬 연결 구조로는 위의 문제를 해결할 수 없다. 즉, 배터리 셀의 반복적인 충방전을 통해 배터리 팩을 사용할 때 배터리 셀 중 몇 개의 배터리 셀이 조기 노화, 단자 저항증가, 셀의 열손실 및 내부 저항 증가 등의 문제가 발생하여 전체 배터리 팩의 성능이 저하될 경우 문제가 되는 몇 개의 배터리 셀을 교체, 분리가 매우 어려워 사실상 배터리 팩의 부분 교체나 수리가 불가능하였다. In the conventional fastening method, the above problems cannot be solved by the parallel / parallel connection structure through ultrasonic spot welding or laser welding. In other words, when using a battery pack through repeated charging and discharging of the battery cells, some of the battery cells may experience problems such as premature aging, terminal resistance increase, heat loss of the cell, and internal resistance, and thus the performance of the entire battery pack. In this case, it was very difficult to replace or remove some of the problematic battery cells, and in fact, partial replacement or repair of the battery pack was impossible.
이로 인해 다수의 셀이 결합된 전체 배터리 팩의 수명이 이를 구성하고 있는 몇 개의 배터리 셀에서 노화 및 단자저항 증가 등으로 인한 수명 저하가 발생할 경우 배터리 팩을 구성하고 있는 나머지 정상적인 배터리 셀들은 그 수명을 다할 때까지 사용하지 못하고 가장 문제가 되는 셀과 같이 수명을 다하는 경우가 다수 발생하였다. As a result, when the life of an entire battery pack in which a plurality of cells are combined decreases the life due to aging and increased terminal resistance in several battery cells, the remaining normal battery cells that make up the battery pack have their lifetime. Many of them failed to use until the end of their life, such as the most problematic cells.
또한, 배터리 셀이 병렬로 연결된 경우에도 하나의 셀 내부에서 (+)와 (-)를 분리해주는 분리판이 손상될 경우 셀 하나 뿐만 아니라 하나의 셀과 병렬 연결된 배터리 모듈 전체가 (+)와 (-)가 연결되어 쇼트 상태가 발생하여 병렬로 연결된 다수의 배터리 셀이 정상 작동하더라도 쇼트 상태에 있는 배터리 셀로 인해 나머지 병렬 연결된 전체 배터리 모듈에서 전기에너지를 소모하게 되어 정상적인 배터리도 사용할 수 없게 되는 문제점이 있다.In addition, even when the battery cells are connected in parallel, if the separator that separates the (+) and (-) inside one cell is damaged, not only one cell but the entire battery module connected in parallel with the one cell is connected to the (+) and (- ) Is connected, and a short state occurs, but even when a plurality of battery cells connected in parallel operate normally, the battery cells in a short state consume electric energy in the remaining battery modules connected in parallel, thereby preventing the use of a normal battery. .
본 발명은 상기의 문제점을 해결하기 위한 것으로, 다수 개의 원통형 배터리 셀을 병렬과 직렬로 연결하기 용이한 구조로 구조로서, 단순 조립 작업을 통해 다수의 소용량 원통 셀을 직/병렬로 연결하여, 진동 시에도 단자의 접촉 상태가 안정적으로 유지되는 원통 전지용 배터리 팩 구조를 제공하기 위한 것이다.The present invention is to solve the above problems, a structure that is easy to connect a plurality of cylindrical battery cells in parallel and in series, by connecting a plurality of small-capacity cylindrical cells in parallel / parallel through a simple assembly operation, vibration The present invention provides a battery pack structure for a cylindrical battery in which the contact state of the terminal is stably maintained.
또한, 본 발명은 배터리 팩을 구성하는 배터리 모듈 또는 그 하위 단계인 배터리 셀의 개별적 배터리에 문제 발생시 결합된 배터리 팩에서 배터리 모듈 또는 배터리 셀 케이스를 분리 또는 분해하여 낱개의 배터리 셀을 교체가 용이하고, 다수개의 배터리 셀이 직/병렬로 연결된 배터리 팩 구조에서 하나의 배터리 셀에 문제가 발생시 다른 배터리 셀에 이 문제가 전이되지 않고, 하나의 배터리만 사용 불가 상태를 유지할 수 있는 원통 전지용 배터리 팩 구조를 제공하기 위한 것이다.In addition, the present invention is easy to replace the individual battery cells by detaching or disassembling the battery module or battery cell case from the battery pack coupled when a problem occurs in the individual battery of the battery module or a battery cell constituting the battery pack. In a battery pack structure in which a plurality of battery cells are connected in parallel / parallel, when a problem occurs in one battery cell, the problem does not transfer to another battery cell, and the battery pack structure for a cylindrical battery can keep only one battery unusable. It is to provide.
상기의 목적을 달성하기 위해 본 발명의 실시예에 따른 원통 전지용 배터리 팩 구조는, 4개의 소형 원통 배터리 셀이 나란하게 각각 삽입되도록 배터리 삽입홈이 형성되고 삽입홈의 원주를 따라 공기의 유동을 돕도록 내부에 다수개의 원형 슬롯이 구비된 제 1 외부프레임과 제 1 외부프레임과 동일한 형태로 원통형 배터리 셀의 반대편에서 셀의 반대 전극이 삽입되도록 배터리 삽입홈을 구비한 제 2 외부프레임, 볼트 결합을 위한 전극 단자가 각각 안착될 수 있도록 단자형태의 4개의 단자홈이 각각 구비되고, 상기 외부 프레임의 양쪽 끝단에 각각 위치하여 외부 프레임과 결속되는 한 쌍의 외부 프레임 커버, 상기 외부 프레임 커버의 하부에서 단자홈에 각각 삽입되고, 상기 외부 프레임과 각각 접촉하는 스프링을 통해 배터리 셀의 전원을 공급받기 위해 스프링과 결속되는 단자 볼트홈이 구비된 4개의 전극단자를 포함하여 구성되는 것을 특징으로 한다.In order to achieve the above object, the battery pack structure for a cylindrical battery according to an exemplary embodiment of the present invention includes a battery insertion groove formed so that four small cylindrical battery cells are inserted side by side and help the air flow along the circumference of the insertion groove. The first outer frame having a plurality of circular slots and a second outer frame having a battery insertion groove so that the opposite electrode of the cell is inserted at the opposite side of the cylindrical battery cell in the same form as the first outer frame. Four terminal grooves each having a terminal shape are provided to allow the electrode terminals to be seated, respectively, and a pair of outer frame covers positioned at both ends of the outer frame and engaged with the outer frame, respectively, at the bottom of the outer frame cover. Inserted into the terminal groove, respectively to receive the power of the battery cell through the spring in contact with the outer frame It characterized in that it comprises a four electrode terminal provided with a terminal bolt groove coupled to the spring.
본 발명의 실시예에 따른 원통 전지용 배터리 팩 구조는, 볼트 결속이 가능하도록 제작되어 있어 배터리 셀을 포함한 단위 모듈 조립이 용이하고, 배터리 셀을 직렬 또는 병렬로 연결할 때 (+), (-) 극에 별도의 부스바(니켈판)를 용접하지 않아 조립 제작 및 분해가 용이하여 배터리 팩의 효율적인 사용 및 관리가 가능하다.The battery pack structure for a cylindrical battery according to an embodiment of the present invention is manufactured to be bolted to facilitate assembly of a unit module including a battery cell, and when the battery cells are connected in series or in parallel, the (+) and (-) poles No separate busbar (nickel plate) is welded to the assembly, making assembly and disassembly easy, enabling efficient use and management of battery packs.
또한, 본 발명의 실시예에 따른 원통 전지용 배터리 팩 구조는 다수개의 배터리 모듈이 결합된 배터리 팩에서 낱개의 배터리 셀에 문제가 발생시 문제가 되는 몇 개의 배터리 셀만 분해하여 교체하면 전체 배터리 패의 성능을 유지하여 계속 사용할 수 있어 적은 비용으로 배터리 팩의 성능을 효율적으로 유지하고 관리할 수 있는 효과를 제공한다.In addition, the battery pack structure for a cylindrical battery according to an embodiment of the present invention to improve the performance of the entire battery pack by disassembling and replacing only a few battery cells that are a problem when a problem occurs in each battery cell in a battery pack combined with a plurality of battery modules It can be maintained and used over time, providing the ability to efficiently maintain and manage the performance of a battery pack at low cost.
또한, 본 발명의 실시예에 따른 원통 전지용 배터리 팩 구조는 Spot 용접이 아닌 조립 방식만으로 배터리 셀을 직렬/병렬로 연결이 가능한 구조로서 단순한 면 접촉을 통해 전류가 흐르므로 저항이 증가하지 않고 분해 조립을 통한 유지 관리가 용이한 효과를 제공한다.In addition, the battery pack structure for a cylindrical battery according to an embodiment of the present invention is a structure in which the battery cells can be connected in series / parallel only by assembling method, not by spot welding. As the current flows through a simple surface contact, the assembly is not increased and the resistance is not assembled. Provides an effect that is easy to maintain through.
또한, 본 발명의 실시예에 따른 원통 전지용 배터리 팩 구조는 다수 개의 원통형 배터리 셀을 직렬과 병렬로 적층하기 용이한 구조를 제공하며, 조립과 분해가 용이하고, 진동 시에도 단자의 접촉 상태가 안정적으로 유지될 수 있고, 배터리 제품 사용 중에 극판과 단위 배터리 셀 자체에서 발생하는 열이 외부 프레임 사이에 공간을 통하여 방열이 용이하여 배터리로 인한 화재를 예방할 수 있는 효과를 제공한다.In addition, the battery pack structure for a cylindrical battery according to an embodiment of the present invention provides a structure that is easy to stack a plurality of cylindrical battery cells in series and parallel, easy to assemble and disassemble, stable contact state of the terminal even during vibration The heat generated from the pole plate and the unit battery cell itself during the use of the battery product can be easily dissipated through the space between the outer frame, thereby preventing the fire caused by the battery.
또한, 본 발명의 실시예에 따른 원통 전지용 배터리 팩 구조는 제 1 외부 프레임과 제 2 외부 프레임의 (+), (-) 극성 부분에는 배터리 연결 시 극성이 확인 가능하도록 홈을 파 배터리 셀의 양극과 음극 단자 간 확인을 할 수 있어 배터리 간의 단락 연결을 방지할 수 있는 효과를 제공한다.In addition, the battery pack structure for a cylindrical battery according to an embodiment of the present invention has a positive polarity of a battery cell which is grooved so that the polarity can be confirmed when the battery is connected to the (+) and (-) polarities of the first outer frame and the second outer frame. Checking between the negative terminal and the negative terminal provides the effect of preventing a short circuit between the batteries.
뿐만 아니라, 본 발명의 실시예에 따른 원통 전지용 배터리 팩 구조는 음극단자 및 양극단자를 포함한 배터리 셀을 중심으로 제 1 외부프레임 및 제 2 외부 프레임을 제작하여 결합할 수 있고, 제 1 외부 프레임 및 제2 외부 프레임에는 양극 및 음극을 연결할 수 있는 단자와 스프링을 결합하여 각 외부프레임을 각각 제 1 외부프레임 및 제 2 외부 프레임에 결합함으로써 하나의 단위 모듈로 구성하여 필요에 따라 그 전격전원을 가변적으로 자유롭게 조정이 가능하여 사용상 편리성을 제공한다.In addition, the battery pack structure for a cylindrical battery according to an embodiment of the present invention can be produced by combining the first outer frame and the second outer frame around the battery cell including the negative terminal and the positive terminal, the first outer frame and the first 2 The outer frame combines terminals and springs to connect the positive and negative poles, and combines each external frame to the first external frame and the second external frame, respectively. It can be freely adjusted to provide convenience in use.
도 1은 본 발명의 실시 예에 따른 배터리 팩 구조를 도시한 분해도.1 is an exploded view showing a battery pack structure according to an embodiment of the present invention.
도 2는 본 발명에 따른 배터리 팩의 체결상태를 도시한 사시도Figure 2 is a perspective view showing a fastening state of the battery pack according to the present invention
도 3은 본 발명의 실시예에 따른 배터리 팩 구조의 정면도.3 is a front view of a battery pack structure according to an embodiment of the present invention.
도 4는 도 1에 따른 배터리 팩의 외부프레임의 구조를 단면도 및 사시도4 is a cross-sectional view and a perspective view of the structure of the outer frame of the battery pack according to FIG.
도 5 내지 도 6은 도 1에 따른 배터리 팩의 외부프레임 커버의 구조를 단면도 및 사시도5 to 6 are a cross-sectional view and a perspective view of the structure of the outer frame cover of the battery pack according to FIG.
도 7 내지 도 10은 도 1에 따른 배터리 팩 구조의 전극단자의 형태 및 조립구조를 도시한 사시도7 to 10 are perspective views showing the shape and assembly structure of the electrode terminal of the battery pack structure according to FIG.
도 11은 도 1에 따른 배터리 팩 구조의 스프링의 형태를 도시한 사시도11 is a perspective view showing the form of a spring of the battery pack structure according to FIG.
도 12는 도 1에 따른 배터리 팩 구조의 고정 나사의 형태를 도시한 사시도12 is a perspective view showing the shape of a fixing screw of the battery pack structure according to FIG.
도 13 내지 도 14는 본 발명에 따른 외부 프레임간 결합에 이용한 결합키의 사시도13 to 14 is a perspective view of a coupling key used for the coupling between the outer frame according to the present invention
도 15는 본 발명의 다른 실시예에 따른 배터리 팩 구조 결합키를 사용하여 다수개의 배터리 모듈을 결합시킨 구조를 도시한 사시도.15 is a perspective view illustrating a structure in which a plurality of battery modules are combined by using a battery pack structure combining key according to another embodiment of the present invention.
첨부된 도 1 및 도 2를 참조하여 본 발명에 따른 원통 전지용 배터리 팩 구조를 살펴보면, 본 발명의 배터리 팩 구조는 크게 외부프레임(100a,100b), 외부프레임 커버(200), 전극단자(300) 및 스프링(400)으로 구성되는데, 상기 외부 프레임은 서로 체결구조를 갖는 제 1 외부프레임(100a) 및 제 2 외부프레임(100b)로 구성된다. 제 1 외부프레임(100a)은 4개의 소형 원통 배터리 셀(700)이 나란하게 각각 삽입되도록 배터리 삽입홈(110)이 형성되고 삽입홈(110)의 원주를 따라 공기의 유동을 돕도록 내부에 다수개의 원형 슬롯(111)이 구비되고, 제 2 외부프레임(100b)은 제 1 외부프레임(100a)과 제 1 외부프레임(100a)과 동일한 형태로 원통형 배터리 셀(700)의 반대편에서 셀의 반대 전극이 삽입되도록 배터리 삽입홈이 구비되어 제 1 외부프레임(100a)과 체결된다.Looking at the battery pack structure for a cylindrical battery according to the present invention with reference to Figures 1 and 2 attached, the battery pack structure of the present invention is largely the outer frame (100a, 100b), the outer frame cover 200, the electrode terminal 300 And it is composed of a spring 400, the outer frame is composed of a first outer frame 100a and a second outer frame 100b having a fastening structure to each other. The first outer frame 100a has a plurality of battery insertion grooves 110 formed therein so that four small cylindrical battery cells 700 are inserted in parallel with each other, and a plurality of internal frames 100a help flow of air along the circumference of the insertion groove 110. Circular slots 111 are provided, and the second outer frame 100b has the same shape as that of the first outer frame 100a and the first outer frame 100a and is opposite to the cell on the opposite side of the cylindrical battery cell 700. The battery insertion groove is provided to be inserted into the first external frame 100a.
상기 외부프레임 커버(200a,200b)는 각각 볼트 결합을 위해 커버 하부에 전극단자(300)가 안착되는 단자형태의 4개의 단자홈(210)이 각각 구비되고, 상기 제 1 외부 프레임(100a)의 끝단에 위치하여 제 1 외부 프레임(100a)과 결속되는 제 1 외부 프레임 커버(200a), 제 2 외부 프레임(100b)의 끝단에 위치하여 제 2 외부 프레임(100b)과 결속되는 제 2 외부 프레임 커버(200b)가 형성된다.The outer frame covers 200a and 200b are respectively provided with four terminal grooves 210 having a terminal shape in which electrode terminals 300 are seated under the cover for bolting, respectively, of the first outer frame 100a. A first outer frame cover 200a positioned at an end and bound to the first outer frame 100a, and a second outer frame cover positioned at an end of the second outer frame 100b and bound to a second outer frame 100b. 200b is formed.
상기 전극단자(300)는 각각 4개의 단자로 구성되고, 외부프레임 커버(200a,200b)의 하부에서 단자홈(210)에 각각 삽입되고, 상기 외부 프레임(100a,100b)와 각각 접촉하는 스프링(400)을 통해 배터리 셀(700)의 전원을 공급받기 위해 스프링(400)과 결속되는 단자 볼트홈(310)이 구비된다.The electrode terminal 300 is composed of four terminals, each of which is inserted into the terminal groove 210 at the bottom of the outer frame covers 200a and 200b, respectively, and the springs contacting the outer frames 100a and 100b, respectively. A terminal bolt groove 310 coupled to the spring 400 is provided to receive power from the battery cell 700 through the 400.
첨부된 도 4는 외부프레임(100)의 단면도 및 사시도를 도시한 것으로, 첨부된 도 1 내지 도 4를 참조하여 외부프레임(100)의 세부구성 및 동작을 살펴보면, 외부프레임(100)은 제 1 외부프레임(100a) 및 제 2 외부프레임(100b)이 체결되는 것으로 그 구조는 서로 대응되도록 형성되는데, 먼저, 형성된 배터리 삽입홈(110)의 원주를 따라 공기의 유동을 돕도록 내부에 다수개의 원형 슬롯(111)이 형성되는데, 이때, 원형 슬롯은 6개 또는 8개로 구비된다.4 is a cross-sectional view and a perspective view of the outer frame 100. Referring to the detailed configuration and operation of the outer frame 100 with reference to FIGS. 1 to 4, the outer frame 100 may be a first embodiment. The outer frame 100a and the second outer frame 100b are fastened to each other so that the structures are formed to correspond to each other. First, a plurality of circular shapes are formed therein to assist the flow of air along the circumference of the formed battery insertion groove 110. Slot 111 is formed, in this case, six or eight circular slots are provided.
4개의 배터리 삽입홈(110)의 중앙에 위치하여 삽입된 배터리 셀(700)의 동작에 따라 중심부에 발생되는 공기 유동 또는 냉각을 위해 중심홀(120a,120b)이 형성되고, 각 외부 프레임(100a,100b)과 일체로 구성되어 삽입가이드(131a,131b)가 대각선 방향으로 사각형의 2개가 부설되고, 삽입가이드(131a,131b) 끝 단에 일체로 형성되어 체결볼트가 삽입되는 체결홀(132a,132b)이 형성된 가이드 바(130a 130b)을 구비하고, 대각선 방향으로 상기 가이드 바(130a,130b)가 각각 안착되고 체결홀(132a,132b)을 통해 삽입되는 2개의 가이드 홈(133a,133b)이 구비된다. Center holes 120a and 120b are formed for air flow or cooling generated in the center according to the operation of the battery cells 700 inserted and positioned in the center of the four battery insertion grooves 110, and each outer frame 100a is formed. It is integrally formed with the 100b, the insertion guides (131a, 131b) are laid two diagonally in the diagonal direction, the fastening holes 132a, which are integrally formed at the ends of the insertion guides (131a, 131b) to insert the fastening bolts Two guide grooves 133a and 133b having guide bars 130a and 130b having 132b formed thereon, and the guide bars 130a and 130b seated in diagonal directions and inserted through the fastening holes 132a and 132b, respectively. It is provided.
즉, 상기 제 1 외부프레임의 가이드 바의 체결홀과 제 2 외부프레임의 가이드 홈이 각각 체결되도록 구성된다.That is, the fastening holes of the guide bars of the first outer frame and the guide grooves of the second outer frame are respectively fastened.
또한, 각 외부프레임의 측면의 중심부에 슬롯 형상으로 다수개의 외부 프레임이 결합이 가능하도록 각각 4개의 제 1결합키 홈(136,137,138,139)이 구비되고, 외부프레임(100a,100b) 상부에 위치한 4개의 돌출부(145,146,147,148)가 형성되어 외부프레임 커버(200a, 200b)와 삽입 체결되어 고정된다.In addition, four first coupling key grooves 136, 137, 138, and 139 are respectively provided to allow a plurality of external frames to be coupled in a slot shape at the center of the side of each outer frame, and four protrusions disposed on the outer frames 100a and 100b. 145, 146, 147, and 148 are formed to be inserted into and fastened with the outer frame covers 200a and 200b.
상기 외부프레임(100a,100b)와 외부프레임 커버(200a, 200b)가 체결에 따라 배터리 셀(700)의 (+),(-) 극과 스프링(400) 및 육각 단자가 결합된 상태를 확인할 수 있는 단자 홀(140)이 형성된다.As the outer frame 100a and 100b and the outer frame cover 200a and 200b are fastened, the positive and negative poles of the battery cell 700, the spring 400, and the hexagonal terminals are coupled to each other. The terminal hole 140 is formed.
첨부된 도 5 내지 도 6은 외부프레임 커버(110)의 단면도 및 사시도를 도시한 것으로, 첨부된 도 1 내지 도 6을 참조하여 외부프레임 커버(110)의 세부구성 및 동작을 살펴보면, 상기 외부 프레임 커버(200a, 200b)는 외부 프레임(100a, 100b)의 양쪽 끝단에 각각 위치하여 외부 프레임과 결속되는 것으로, 볼트 결합을 위한 전극 단자(300)가 각각 안착될 수 있도록 단자형태의 4개의 단자홈(210a,210b)이 각각 구비된다. 즉 제 1 외부프레임 커버(200a)의 4개의 단자홈(211a,212a,213a,214a)와 제 2 외부 프레임 커버(200b)의 4개의 단자홈(211b,212b,213b,214b)으로 구성된다.5 to 6 are a cross-sectional view and a perspective view of the outer frame cover 110, the detailed configuration and operation of the outer frame cover 110 with reference to the accompanying drawings 1 to 6, the outer frame Covers 200a and 200b are positioned at both ends of the outer frames 100a and 100b, respectively, to be coupled to the outer frame, and have four terminal grooves in the form of terminals so that the electrode terminals 300 for bolt coupling may be respectively seated. 210a and 210b are provided, respectively. That is, four terminal grooves 211a, 212a, 213a and 214a of the first outer frame cover 200a and four terminal grooves 211b, 212b, 213b and 214b of the second outer frame cover 200b are formed.
상기 외부프레임(100a,100b)과 체결시 각 외부프레임의 4개의 제 1 결합키 홈(136,137,138,139)과 대면되도록 외부프레임 커버의 측면의 중심부에 슬롯 형상으로 각각 형성되어 다수개의 프레임이 결합이 가능하도록 구비된 제 2 결합키 홈(211,212,213,214)이 구비되고, 상기 외부프레임(100a,100b)과 체결시 외부프레임의 중심홀(120a,120b)과 대면되어 4개의 배터리 삽입홈(110)의 안착된 배터리 셀(700)의 중심부에 발생하는 열의 공기 유동 또는 냉각을 위한 공기 유동홀(220a,220b)이 형성되고, 상기 외부프레임 커버(200a,200b)과 상기 외부프레임(100a,100b)이 결합되어 체결시 각각 고정나사를 위한 구멍 홀이 구비되고 고정나사가 구멍 홀에 삽입하여 체결시 전기적으로 접촉되지 않도록 외부프레임 커버(200a,200b) 상에 돌출되는 보호 돌기부(230)가 구비된다.When coupled with the outer frame (100a, 100b) is formed in a slot shape in the center of the side of the outer frame cover so as to face the four first coupling key grooves (136, 137, 138, 139) of each outer frame so that a plurality of frames can be combined The second coupling key grooves 211, 212, 213, and 214 are provided, and when the external frame 100a or 100b is fastened, the second coupling key grooves 211, 212, 213, and 214 face the center holes 120a and 120b of the external frame and seat the four battery insertion grooves 110. Air flow holes 220a and 220b for air flow or cooling of heat generated in the center of the cell 700 are formed, and the outer frame covers 200a and 200b and the outer frames 100a and 100b are coupled and fastened. Hole holes for fixing screws are provided at each time, and protective protrusions 230 protruding on the outer frame covers 200a and 200b are provided so that the fixing screws are inserted into the hole holes and are not electrically contacted when fastened.
또한, 상기 외부프레임(100a,100b)과 외부프레임 커버(200a, 200b)의 결합에 따라 배터리 셀(700)의 (+),(-) 극성을 확인과, 배터리 셀(700)의 충전 및 방전시 발생하는 열의 방출을 위한 4개의 방열홈(240)이 구비된다.In addition, according to the combination of the outer frame (100a, 100b) and the outer frame cover (200a, 200b) to check the (+), (-) polarity of the battery cell 700, and charge and discharge of the battery cell 700 Four heat dissipation grooves 240 are provided for dissipating heat generated at the time.
또한, 상기 전극단자(300)는 상기 외부프레임 커버(200a,200b) 하부의 단자홈(210)에 각각 독립적으로 안착되어 외부프레임 커버(200a,200b) 상부에서 배터리 셀(700)의 전원을 공급받기 위해 너트홈이 구비된다.In addition, the electrode terminal 300 is seated independently of the terminal groove 210 of the lower portion of the outer frame cover (200a, 200b) to supply power to the battery cell 700 from the upper outer frame cover (200a, 200b). Nut groove is provided for receiving.
한편, 상기 전극단자는 첨부된 도 7 내지 도 10에 도시된 바와 같이 사각 플레이트와 너트의 체결구조를 갖거나, 육각봉, 팔각봉의 구조를 갖거나, 육각이 아닌 스플라인 형태의 봉을 가공하여 안쪽에 탭을 낸 형태로 선택적으로 적용할 수 있다.On the other hand, the electrode terminal has a fastening structure of the square plate and the nut, as shown in Figure 7 to 10 attached, or having a hexagonal rod, octagonal rod structure, or by processing a non-hexagonal spline-shaped rod inside You can optionally apply it in tabbed form.
또한, 상기 전극단자(300)는 내부에 나사 체결을 위한 탭이 구비되고, 전기전도도가 높은 구리 합금 소재를 형성되며, 부식을 방지하기 위하여 주석 또는 니켈 등으로 도금되어 있다. 상기 제 1 외부프레임 커버(200a) 및 제 2 외부프레임 커버(200b)에 4개의 배터리 셀(700)이 결합하여 배터리 셀(700)의 (+)극과 (-)극에 각각 4개의 스프링(400)을 통해 전류가 흐르는 통로를 제공한다. 아울러 외부 프레임 커버의 홀을 통해 배터리 셀 이면까지 연결되어 바깥에서 볼트 체결을 통해 전류가 흐르는 통로를 제공한다. In addition, the electrode terminal 300 is provided with a tab for screwing therein, a copper alloy material having high electrical conductivity is formed, and is plated with tin or nickel to prevent corrosion. Four battery cells 700 are coupled to the first outer frame cover 200a and the second outer frame cover 200b, and four springs (+) and (-), respectively, of the battery cells 700 are coupled to each other. 400 provides a passage through which current flows. In addition, it is connected to the back of the battery cell through the hole of the outer frame cover to provide a passage through which current flows through the bolt fastening from the outside.
첨부된 도 11에 도시된 바와 같이 본 발명에 따른 상기 스프링(400)은 청동/황동 소재를 주석 도금하여 단면이 사각의 납작한 형상을 가지고, 상기 전극단자(300)의 볼트홈(310)에 끼움방식으로 안착되어 외부프레임(100a,100b) 및 외부프레임 커버(200a,200b)의 변형시에도 배터리 셀의 (+), (-) 극과 접촉을 통해 탄성을 유지하여 전류가 원활히 흐를 수 있도록 청동/황동 소재를 주석 도금하여 단면이 납작한 사각 형태를 가지도록 구성된다.As shown in FIG. 11, the spring 400 according to the present invention has a flat shape having a square cross section by tin-plating a bronze / brass material, and fits into the bolt groove 310 of the electrode terminal 300. It is seated in such a way that even when the outer frames 100a and 100b and the outer frame covers 200a and 200b are deformed, the bronze remains in contact with the positive and negative poles of the battery cell so that the current flows smoothly. Tin-plated brass material has a flat rectangular cross section.
또한, 본 발명은 제 1 외부프레임(100a)과 제 2 외부프레임(100b)이 제 1 외부프레임 커버(200a) 및 제 2 외부프레임 커버(200b)와 각각 결합되고 체결되는 것으로, 제 1 외부프레임(100a)의 가이드 바(130a)의 체결홀(132a)이 체결홈(132a)가 결합된 후, 고정나사(500)를 통해 제 1외부프레임(100a) 및 제 1 외부프레임 커버(200a), 그리고 제 2외부 프레임(100b) 및 제 2 외부프레임 커버(200b)가 별도의 너트없이 플라스틱 소재를 파고들면서 강하게 결속되게 된다. In addition, the present invention is that the first outer frame (100a) and the second outer frame (100b) is coupled to each other and fastened to the first outer frame cover (200a) and the second outer frame cover (200b), respectively, the first outer frame After the fastening hole 132a of the guide bar 130a of the guide bar 130a of the 100a is coupled to the fastening groove 132a, the first outer frame 100a and the first outer frame cover 200a through the fixing screw 500, In addition, the second outer frame 100b and the second outer frame cover 200b are strongly bound while penetrating the plastic material without a separate nut.
상기 고정나사(500)는 첨부된 도 12와 형성되며, 총 8개의 고정나사를 통해 외부프레임과 외부프레임 커버가 결속된다.The fixing screw 500 is formed with the attached Figure 12, the outer frame and the outer frame cover is bound through a total of eight fixing screws.
한편, 상기의 구성에 따라 고정나사(500)를 통해 조립된 후 보호돌기부(230)에 의해 전원연결을 위해 부스바등 외부에서 추가적인 작업을 할 때 전기적으로 접촉되지 않지 보호가 된다.On the other hand, after being assembled through the fixing screw 500 according to the above configuration is protected from electrical contact when additional work outside the busbar for the power connection by the protective protrusion 230.
도 13 내지 도 14에 도시된 결합키(600)을 이용하여 다수의 외부 프레임을 연결할 수 있는데, 상기 외부프레임(100a,100b)을 다단으로 적층이 가능하도록 외부프레임의 제 1 결합키 홈(136,137,138,139)와 대면되는 외부프레임 커버(200a,200b)의 제 2결합키 홈(211,212,213,214) 사이에 4개의 결합키(601,602,603,604)를 각각 삽입하여 다수의 외부 프레임(100a,100b)을 적층하여 기구의 견고성을 제공하고, 외부 프레임 커버(200a,200b)의 각 단자홈(210)을 통해 첨부된 도 15와 같이 다수의 외부 프레임(100a,100b)과 직.병렬 연결을 통해 원하는 전격 전압과 전원을 제공한다.A plurality of external frames may be connected using the coupling key 600 illustrated in FIGS. 13 to 14, and the first coupling key grooves 136, 137, 138, and 139 of the external frame may be stacked in multiple stages. ) And a plurality of outer frames (100a, 100b) by inserting four coupling keys (601, 602, 603, 604) between the second coupling key grooves (211, 212, 213, 214) of the outer frame cover (200a, 200b) facing each other). And through the terminal groove 210 of the outer frame cover (200a, 200b) as shown in Figure 15 attached to the plurality of outer frame (100a, 100b) through a parallel connection in parallel to provide the desired electric shock voltage and power. .
또한, 첨부된 도 4 내지 도 6에서 제시된 바와 같이 상기 외부 프레임(100a, 100b) 및 상기 외부프레임 커버(200a, 200b)는 체결될 때 사각형 중심 가장 자리에 외부 프레임의 제 1결합키 홈(136,137,138,139)와 외부프레임 커버의 제 2 결합키 홈(211,212,213,214)가 구비된 결합키 홈이 형성되는데, 상기 결합키 홈에 결합키(600)를 삽입하여 다수의 배터리 모듈(1000)을 적층하여 견고한 배터리 팩을 완성할 수 있다. In addition, as shown in FIGS. 4 to 6, when the outer frame 100a and 100b and the outer frame cover 200a and 200b are fastened to each other, the first coupling key grooves 136, 137, 138 and 139 of the outer frame are located at the center edges of the rectangle. ) And a second coupling key groove 211, 212, 213, and 214 of the outer frame cover are formed, and a plurality of battery modules 1000 are stacked by inserting the coupling key 600 into the coupling key groove to form a solid battery pack. Can be completed.
또한, 본 발명의 배터리 팩 구조는 제 1 외부 프레임(100a)과 제 2 외부 프레임(100b)의 끝단에 배터리 연결 시 극성이 확인 가능하도록 단자 슬롯(140)을 통해 배터리 셀의 양극과 음극의 상태를 확인하며 배터리 셀의 극성 변화 여부를 확인할 수 있다.In addition, the battery pack structure of the present invention is the positive and negative states of the battery cell through the terminal slot 140 so that the polarity can be confirmed when the battery is connected to the ends of the first outer frame (100a) and the second outer frame (100b) You can check whether the polarity of the battery cell changes.
외부의 결합키 홈은 외부프레임와 외부프레임가 결합하여 완전한 단위 모듈의 구조를 가진 다음 다수의 단위 모듈을 연결하여 필요한 전압과 용량을 만들시 단위 모듈 상호간에 고정할 수 있는 결합키(600)가 들어갈 수 있는 홈이 있다.The external coupling key groove has a structure of a complete unit module by combining an external frame and an external frame, and then connects a plurality of unit modules to create a necessary voltage and capacity. There is a home.
4S 4P의 구조의 배터리 팩을 예를 들면 8개의 배터리 팩이 +극은 +극끼리 -극은 -극끼리 연결되어야 하므로 3개의 배터리 셀이 들어있는 단위 모듈 두 개와 2개의 배터리 셀이 들어있는 단위 모듈 한 개를 상기 외부프레임의 부스바 연결 홈에 볼트로 연결함으로써 병렬 연결이 가능하다. For example, a battery pack having a structure of 4S 4P, for example, 8 battery packs should be connected with + poles + poles and-poles-poles, so a unit containing two battery cells and a unit module containing three battery cells Parallel connection is possible by bolting one module to the busbar connection groove of the outer frame.
그리고 상기 외부프레임(100a, 100b)와 외부프레임 커버(200a,200b)는 동일한 외곽 형상을 갖는데 사각의 중심부에 동일하게 다수의 단위 모듈을 연결하도록 결합키 홈이 형성되는데, 결합키 홈의 형상에 맞게 결합키(600)를 넣음으로써 기구적 견고성을 가지게 되어 단위 모듈 간의 움직임을 방지할 수 있다. And the outer frame (100a, 100b) and the outer frame cover (200a, 200b) has the same outer shape, the coupling key groove is formed so as to connect a plurality of unit modules in the center of the square, the shape of the coupling key groove By inserting the coupling key 600 to suitably has a mechanical robustness to prevent movement between the unit modules.
[부호의 설명][Description of the code]
100a : 제 1 외부프레임 100b : 제 2 외부프레임100a: first outer frame 100b: second outer frame
110 : 삽입홈 111 : 원형 슬롯110: insertion groove 111: round slot
120a, 120b : 중심홀 130a, 130b : 가이드 바120a, 120b: center hole 130a, 130b: guide bar
131a, 131b : 삽입 가이드 132a, 132b : 체결 홀 131a, 131b: Insertion guide 132a, 132b: Fastening hole
133a, 133b : 삽입 가이드 홈 136, 137, 138, 139 : 제 1 결합키 홈 133a, 133b: Insertion guide groove 136, 137, 138, 139: First engagement key groove
140 : 단자 슬롯 145, 146, 147, 148 : 돌출부140: terminal slots 145, 146, 147, 148: protrusions
200a : 제1 외부프레임 커버 200b : 제 2 외부프레임 커버200a: first outer frame cover 200b: second outer frame cover
210a, 210b : 단자홈 211, 212, 213, 214 : 제 2 결합키 훔210a, 210b: terminal grooves 211, 212, 213, and 214: second binding key hum
220a, 220b : 공기유동 홀 230 : 보호돌기부220a, 220b: air flow hole 230: protective protrusion
240 : 방열홈 300 : 전극단자 240: heat radiation groove 300: electrode terminal
400 : 스프링 500 : 고정 나사400: spring 500: fixing screw
600 : 결합 키 700 : 배터리 셀600: Combined Key 700: Battery Cell
1000 : 배터리 모듈1000: Battery Module

Claims (7)

  1. 4개의 소형 원통 배터리 셀(700)이 나란하게 각각 삽입되도록 배터리 삽입홈(110)이 형성되고 삽입홈(110)의 원주를 따라 공기의 유동을 돕도록 내부에 다수개의 원형 슬롯(111)이 구비된 제 1 외부프레임(100a)과 제 1 외부프레임(100a)과 동일한 형태로 원통형 배터리 셀(700)의 반대편에서 셀의 반대 전극이 삽입되도록 배터리 삽입홈을 구비한 제 2 외부프레임(100b),A battery insertion groove 110 is formed to insert four small cylindrical battery cells 700 side by side, and a plurality of circular slots 111 are provided therein to assist the flow of air along the circumference of the insertion groove 110. A second outer frame 100b having a battery insertion groove so that the opposite electrode of the cell is inserted in the same shape as that of the first outer frame 100a and the first outer frame 100a,
    볼트 결합을 위한 전극 단자(300)가 각각 안착될 수 있도록 단자형태의 4개의 단자홈(210)이 각각 구비되고, 상기 외부 프레임(100a, 100b)의 양쪽 끝단에 각각 위치하여 외부 프레임과 결속되는 한 쌍의 외부 프레임 커버(200a, 200b),Four terminal grooves 210 having a terminal shape are respectively provided to allow the electrode terminals 300 for bolt coupling to be seated, respectively, and are positioned at both ends of the outer frames 100a and 100b to bind to the outer frame. A pair of outer frame covers 200a, 200b,
    상기 외부 프레임 커버(200a, 200b)의 하부에서 단자홈(210)에 각각 삽입되고, 상기 외부 프레임(100a,100b)와 각각 접촉하는 스프링(400)을 통해 배터리 셀(700)의 전원을 공급받기 위해 스프링(400)과 결속되는 단자 볼트홈(310)이 구비된 4개의 전극단자(300)을 포함하여 구성되는 것을 특징으로 하는 원통 전지용 배터리 팩 구조.Receive power from the battery cell 700 through springs 400 respectively inserted into the terminal grooves 210 at the lower portions of the outer frame covers 200a and 200b and contacting the outer frames 100a and 100b, respectively. Cylindrical battery pack structure, characterized in that it comprises a four electrode terminal 300 is provided with a terminal bolt groove 310 is coupled to the spring (400).
  2. 제 1 항에 있어서,The method of claim 1,
    상기 외부프레임(100a,100b)은The outer frame (100a, 100b) is
    배터리 삽입홈(110) 내부에 원주를 따라 공기의 유동을 돕도록 원형 라인을 따라 다수개의 원형 슬롯(111a.111b),A plurality of circular slots (111a. 111b) along a circular line to help the flow of air along the circumference inside the battery insertion groove 110,
    4개의 배터리 삽입홈(110)의 중앙에 위치하여 중심부에 공기 유동 또는 냉각을 위해 형성된 중심홀(120a,120b),Center holes 120a and 120b positioned in the center of the four battery insertion grooves 110 for air flow or cooling in the center thereof,
    각 외부프레임의 측면의 중심부에 슬롯 형상으로 각각 형성되어 다수개의 외부프레임이 결합이 가능하도록 구비된 4개의 제 1결합키 홈(136,137,138,139)Four first coupling key grooves 136, 137, 138, and 139, each formed in a slot shape at the center of the side of each outer frame and provided with a plurality of external frames to be coupled.
    외부프레임 커버(200a, 200b)와 삽입 체결되어 고정되도록 외부프레임(100a,100b) 상부에 위치한 4개의 돌출부(145,146,147,148),Four protrusions 145, 146, 147, 148 located on the outer frame (100a, 100b) to be inserted and fastened and fixed to the outer frame cover (200a, 200b),
    상기 외부프레임(100a,100b)와 외부프레임 커버(200a, 200b)가 체결에 따라 배터리 셀(700)의 (+),(-) 극과 스프링(400) 및 육각 단자가 결합된 상태를 확인할 수 있는 단자 홀(140)이 구비되고,As the outer frame 100a and 100b and the outer frame cover 200a and 200b are fastened, the positive and negative poles of the battery cell 700, the spring 400, and the hexagonal terminals are coupled to each other. Terminal hole 140 is provided,
    외부 프레임과 일체로 구성되고 대각선 방향으로 사각형의 2개의 삽입가이드(131a,131b)와 삽입가이드 끝 단에 일체로 형성되어 체결볼트가 삽입되는 체결홀(132a,132b)이 형성된 가이드 바(130a 130b)을 구비하고, 대각선 방향으로 상기 가이드 바(130a,130b)가 각각 안착되고 체결홀(132a,132b)을 통해 삽입되는 2개의 가이드 홈(133a,133b)을 포함하여 구성되는 것을 특징으로 하는 원통 전지용 배터리 팩 구조.Guide bars 130a 130b formed integrally with the outer frame and formed with two insertion guides 131a and 131b in a diagonal direction and integrally formed at the end of the insertion guide and having fastening holes 132a and 132b into which the fastening bolts are inserted. And a guide groove (130a, 130b) seated in the diagonal direction, respectively, and a cylinder comprising two guide grooves (133a, 133b) inserted through the fastening holes (132a, 132b). Battery pack structure for the battery.
  3. 제 1 항 또는 제 2 항 중 어느 한 항에 있어서,The method according to claim 1 or 2,
    상기 외부프레임 커버(200a,200b)는The outer frame covers 200a and 200b are
    볼트 결합을 위한 전극 단자(300)가 각각 안착될 수 있도록 단자형태의 4개의 단자홈(210a,210b)이 각각 구비되고, 상기 외부 프레임(100a, 100b)의 양쪽 끝단에 각각 위치하여 외부 프레임과 결속되는 한 쌍의 외부 프레임 커버(200a, 200b),Four terminal grooves 210a and 210b in the form of terminals are respectively provided to allow the electrode terminals 300 for bolt coupling to be seated, respectively, and are positioned at both ends of the outer frames 100a and 100b, respectively. A pair of outer frame covers 200a and 200b,
    상기 외부프레임(100a,100b)과 체결시 각 외부프레임의 4개의 제 1 결합키 홈(136,137,138,139)과 대면되도록 외부프레임 커버의 측면의 중심부에 슬롯 형상으로 각각 형성되어 다수개의 프레임이 결합이 가능하도록 구비된 제 2 결합키 홈(211,212,213,214),When coupled with the outer frame (100a, 100b) is formed in a slot shape in the center of the side of the outer frame cover so as to face the four first coupling key grooves (136, 137, 138, 139) of each outer frame so that a plurality of frames can be combined Second coupling key grooves (211,212,213,214) provided,
    상기 외부프레임(100a,100b)과 체결시 외부프레임의 중심홀(120a,120b)과 대면되어 4개의 배터리 삽입홈(110)의 안착된 배터리 셀(700)의 중심부에 발생하는 열의 공기 유동 또는 냉각을 위한 공기 유동홀(220a,220b),Air flow or cooling of heat generated in the center of the battery cell 700 seated in the four battery insertion groove 110 when facing the center hole (120a, 120b) of the outer frame when the outer frame (100a, 100b) is fastened Air flow holes (220a, 220b),
    상기 외부프레임 커버(200a,200b)과 상기 외부프레임(100a,100b)이 결합되어 체결시 각각 고정나사를 위한 구멍 홀이 구비되고 고정나사가 구멍 홀에 삽입하여 체결시 전기적으로 접촉되지 않도록 외부프레임 커버(200a,200b) 상에 돌출되는 보호 돌기부(230),The outer frame cover (200a, 200b) and the outer frame (100a, 100b) is coupled to each other is provided with a hole hole for the fixing screw, and the fixing screw is inserted into the hole hole so that the outer frame is not in electrical contact when fastening A protective protrusion 230 protruding on the covers 200a and 200b,
    상기 외부프레임(100a,100b)과 외부프레임 커버(200a, 200b)가 결합에 따라 배터리 셀(700)의 (+),(-) 극성을 확인하며, 배터리 셀(700)의 충전 및 방전시 발생하는 열의 방출을 위한 4개의 방열홈(240)을 포함하여 구성되는 것을 특징으로 하는 원통 전지용 배터리 팩 구조.According to the combination of the outer frame (100a, 100b) and the outer frame cover (200a, 200b) to check the (+), (-) polarity of the battery cell 700, occurs when charging and discharging the battery cell 700 Cylindrical battery pack structure, characterized in that it comprises a four heat dissipation groove 240 for the release of heat.
  4. 제 1 항에 있어서,The method of claim 1,
    상기 전극단자(300)는 The electrode terminal 300 is
    상기 외부프레임 커버(200a,200b) 하부의 단자홈(210)에 각각 독립적으로 안착되어 외부프레임 커버(200a,200b) 상부에서 배터리 셀(700)의 전원을 공급받기 위해 너트홈이 구비되고, The nut grooves are provided to be independently seated in the terminal grooves 210 below the outer frame covers 200a and 200b to receive the power of the battery cells 700 from the outer frame covers 200a and 200b.
    사각 플레이트와 너트의 체결구조를 갖거나, 육각봉, 팔각봉의 구조를 갖거나, 육각이 아닌 스플라인 형태의 봉을 가공하여 안쪽에 탭을 낸 형태로 선택적으로 적용할 수 있는 것을 특징으로 하는 원통 전지용 배터리 팩 구조.For cylindrical batteries having a fastening structure of a square plate and a nut, a hexagonal rod, an octagonal rod, or a non-hexagonal spline-shaped rod that can be selectively applied in the form of a tab. Battery pack structure.
  5. 제 1 항에 있어서,The method of claim 1,
    상기 스프링(400)은 The spring 400 is
    청동/황동 소재를 주석 도금하여 단면이 사각의 납작한 형상을 가지고, 상기 전극단자(300)의 볼트홈(310)에 끼움방식으로 안착되어 외부프레임 및 외부프레임커버의 변형시에도 배터리 셀의 (+), (-) 극과 접촉을 통해 탄성을 유지하여 전류가 원활히 흐를 수 있도록 청동/황동 소재를 주석 도금하여 단면이 납작한 사각 형태를 가지는 것을 특징으로 하는 원통 전지용 배터리 팩 구조.Tin-plated bronze / brass material has a flat cross-sectional shape, and is seated in the bolt groove 310 of the electrode terminal 300 so as to be mounted on the battery cell even when the outer frame and the outer frame cover are deformed. ), (-) Cylindrical battery pack structure, characterized in that it has a flat rectangular shape by tin-plating bronze / brass material to maintain the elasticity in contact with the pole so that the current flows smoothly.
  6. 제 3 항에 있어서,The method of claim 3, wherein
    상기 외부프레임(100a,100b)을 다단으로 적층이 가능하도록 외부프레임의 제 1 결합키 홈(136,137,138,139)와 대면되는 외부프레임 커버(200a,200b)의 제 2결합키 홈(211,212,213,214) 사이에 4개의 결합키(601,602,603,604)를 각각 삽입하여 다수의 외부 프레임(100a,100b)을 적층하여 기구의 견고성을 제공하고, 외부 프레임 커버(200a,200b)의 각 단자홈(210)을 통해 다수의 외부 프레임(100a,100b)과 직.병렬 연결을 통해 원하는 전격 전압과 전원을 제공하는 것을 특징으로 하는 원통 전지용 배터리 팩 구조.Four between the second coupling key grooves 211, 212, 213, and 214 of the outer frame cover 200a, 200b facing the first coupling key grooves 136, 137, 138, and 139 of the outer frame to stack the outer frames 100a and 100b in multiple stages. Inserting the coupling keys (601, 602, 603, 604), respectively, and stacking a plurality of outer frames (100a, 100b) to provide robustness of the mechanism, and through the terminal grooves 210 of the outer frame cover (200a, 200b) a plurality of outer frames ( 100a, 100b) and a battery pack structure for a cylindrical battery, characterized in that to provide a desired electric shock voltage and power through a parallel connection in parallel.
  7. 제 3 항에 있어서,The method of claim 3, wherein
    제 1 외부프레임(100a)과 제 2 외부프레임(100b)이 제 1 외부프레임 커버(200a) 및 제 2 외부프레임 커버(200b)와 각각 결합되어 체결을 위해 제 1 외부프레임(100a)의 가이드 바(130a)의 체결홀(132a)이 체결홈(132a)가 결합된 후, 고정나사(500)를 통해 제 1외부프레임(100a) 및 제 1 외부프레임 커버(200a), 제 2외부 프레임(100b) 및 제 2 외부프레임 커버(200b)가 별도의 너트없이 플라스틱 소재를 파고들면서 강하게 결속되는 것을 특징으로 하는 원통 전지용 배터리 팩 구조.The first outer frame 100a and the second outer frame 100b are coupled to the first outer frame cover 200a and the second outer frame cover 200b, respectively, and guide bars of the first outer frame 100a for fastening. After the fastening hole 132a of the 130a is coupled with the fastening groove 132a, the first outer frame 100a and the first outer frame cover 200a and the second outer frame 100b through the fixing screw 500. And a second outer frame cover (200b) is strongly bound while digging a plastic material without a separate nut.
PCT/KR2017/008840 2016-08-18 2017-08-14 Structure of battery pack for cylindrical battery WO2018034471A1 (en)

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