WO2023090703A1 - 내충격성이 향상된 전지 팩 - Google Patents
내충격성이 향상된 전지 팩 Download PDFInfo
- Publication number
- WO2023090703A1 WO2023090703A1 PCT/KR2022/017077 KR2022017077W WO2023090703A1 WO 2023090703 A1 WO2023090703 A1 WO 2023090703A1 KR 2022017077 W KR2022017077 W KR 2022017077W WO 2023090703 A1 WO2023090703 A1 WO 2023090703A1
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- WO
- WIPO (PCT)
- Prior art keywords
- battery pack
- stopper
- lower case
- pressing
- module frame
- Prior art date
Links
- 230000035939 shock Effects 0.000 title claims abstract description 15
- 238000003825 pressing Methods 0.000 claims description 57
- 238000003860 storage Methods 0.000 claims description 2
- 230000004308 accommodation Effects 0.000 abstract description 3
- 230000000116 mitigating effect Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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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
- H01M50/20—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
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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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
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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
- H01M50/20—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
- H01M50/204—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
-
- 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 with improved shock resistance, and more specifically, to a battery pack with improved shock resistance that protects a battery module from internal vibration or impact and is easy to assemble.
- Secondary batteries capable of charging and discharging are widely used in various fields such as mobile devices, electric vehicles, hybrid electric vehicles, and industrial robots.
- Secondary batteries which are used as an energy source for various electronic devices indispensably used in modern society, are increasing in capacity due to the increase in usage and complexity of mobile devices and the development of electric vehicles.
- a plurality of battery cells are disposed in small devices to meet user demand, but a battery module electrically connecting a plurality of battery cells or a battery pack having a plurality of such battery modules is used in automobiles and the like.
- a battery pack includes a battery pack case to package battery modules, and the battery module is fixed in the pack case to prevent vibration or impact.
- the battery module is fixed in the pack case to prevent vibration or impact.
- it is common to fix the battery module within the battery pack case through a separate fastening structure such as bolts and nuts.
- Patent Document 1 Korean Registered Patent Publication No. 2167632 (2020.10.19. Notice)
- an object of the present invention is to provide a battery pack with improved shock resistance provided with a member capable of mitigating impact in a space between a battery module and a battery pack.
- Another object of the present invention is to provide a battery pack with improved impact resistance having a structure that is easy to assemble without increasing the size of the battery pack.
- a battery pack according to the present invention includes a lower case 100 having a space having a predetermined size; an upper case 200 positioned above the lower case 100 and fastened to each other; one or more module frames 300 accommodated in the space of the lower case 100 and the upper case 200 and provided with battery cell receiving grooves 310; and battery cells accommodated in the battery cell receiving grooves 310, but between the outer surface of the module frame 300 and the inner surface of the lower case 100 to protect the module frame 300 from external impact. It is characterized in that a relief member is provided.
- the impact relieving member is a first stopper 400
- the first stopper 400 is a pillar-shaped first pressing part 410 in close contact with the outer surface of the module frame 300 ), and a pair of wing parts 420 extending a predetermined length to both sides of the first pressing part 410.
- a first accommodating part 110 for fixing the first stopper 400 is provided on the sidewall of the lower case 100, and the first accommodating part 110, Accommodating grooves 111 surrounding the rear and side surfaces so that the wings 420 can be seated and fixed, the horizontal support jaw 112 supporting the lower surface of the wings 420, and a front part of the wings 420 A pair of vertical supporting jaws 113 and an opening 114 provided between the pair of vertical supporting jaws 113 so that the first pressing part 410 protrudes forward by a predetermined length. It is characterized by including.
- the front surface of the first pressurizing part 410 is characterized in that the central part protrudes relatively forward from the upper and lower parts based on the height direction.
- the rear surface of the first pressing part 410 is characterized in that the central portion protrudes relatively backward from the upper and lower portions based on the height direction.
- the impact relieving member is the second stopper 500
- one side of the second stopper 500 is in close contact with the outer surface of the module frame 300 and the other side is in close contact with the lower case 100
- a columnar second pressing part 510 in close contact with the inner surface
- a head part 520 having one side in close contact with the outer surface of the lower case 100
- the second pressing part 510 and the head part 520 It is characterized in that it comprises a connection portion 530 that connects.
- a second accommodating part 120 for fixing the second stopper 500 is provided on the sidewall of the lower case 100, and the second accommodating part 120,
- the second pressing part 510, the head part 520, and the connecting part 530 are cylindrical, and the diameter of the connecting part 530 is the second pressing part 510 And it is characterized in that it is relatively smaller than the head part 520, and the diameter of the through hole 121 is relatively smaller than the second pressing part 510 and the head part 520.
- the diameter of the head part 520 is larger than the diameter of the second pressing part 510.
- a depression 511 is formed at one end of the second pressing part 510 to form a predetermined space.
- the present invention is characterized by providing a device equipped with the battery pack described above.
- a first stopper composed of a pillar-shaped first pressing part made of an elastic material and a pair of wing parts between the outer surface of the module frame and the inner surface of the case By being interposed there is an advantage that the battery module can be protected from external shock or vibration.
- a second stopper composed of a columnar second pressing part made of an elastic material, a head part, and a connection part is interposed between the outer surface of the module frame and the inner surface of the case, thereby preventing external There is an advantage in that the battery module can be protected from shock or vibration.
- the housing unit integrated with the case since the housing unit integrated with the case is provided, there is an advantage in that the first stopper and the second stopper can be stably accommodated and fixed.
- the first stopper and the second stopper have a structure that can be easily mounted in the case, and thus have an advantage of easy assembly.
- FIG. 1 is a perspective view of a battery pack according to a preferred embodiment of the present invention.
- FIG. 2 is an internal plan view of the battery pack shown in FIG. 1 .
- FIG. 3 is an enlarged view of part A of FIG. 2 .
- FIG. 4 is a perspective view of a first stopper mounted on a battery pack according to a preferred embodiment of the present invention.
- FIG. 5 is an enlarged view of a first accommodating portion for accommodating a first stopper in portion A of FIG. 3 .
- FIG. 6 is a perspective view of a module frame mounted on a battery pack according to a preferred embodiment of the present invention.
- FIG. 7 is an enlarged view of part B of FIG. 2 .
- FIG. 8 is a front perspective view of a second stopper mounted on a battery pack according to a preferred embodiment of the present invention.
- FIG. 9 is a perspective view of the second stopper shown in FIG. 8 viewed from below.
- FIG. 10 is a perspective view of a second accommodating portion to which a second stopper is mounted, viewed from the outside of the lower case.
- FIG. 11 is a perspective view of a second accommodating portion to which a second stopper is mounted, viewed from the inside of the lower case.
- FIG. 12 is a perspective view for explaining a state in which a second stopper is mounted on part B of FIG. 2 .
- FIG. 13 is a perspective view of the second stopper before being mounted on the battery pack as seen from below.
- FIG. 1 is a perspective view of a battery pack according to a preferred embodiment of the present invention
- FIG. 2 is an internal plan view of the battery pack shown in FIG. 1 .
- the battery pack according to the present invention includes a lower case 100, an upper case 200, a module frame 300, and a first stopper 400 and a second stopper corresponding to shock absorbing members. It is configured to include 500.
- the lower case 100 has a shape surrounded by predetermined walls, but is not limited thereto and may be replaced with a cover without a separate space.
- module frames 300 are mounted, but this is only an example and can be increased or decreased as much as possible.
- first stoppers 400 are located in the front and rear (top and bottom in the drawing) of one module frame 300 located at the leftmost side
- second stoppers 500 are located at the rightmost module frame ( 300) is expressed as having a pair at the front and rear, but it is obvious that a pair can be located at the front and rear of each module.
- first stoppers 400 may be mounted on the front and rear sides of all module frames 300, or the second stoppers 500 may be mounted on the front and rear sides of all module frames 300.
- module frame 300 adjacent to the side wall of the lower case 100 it may be additionally provided on the side in addition to the front and rear.
- the above-described first stopper 400 and second stopper 500 alleviate the impact to the battery module in which the battery cell is stored. protect
- the lower case 100 has a space sufficient to accommodate the module frame 300 and is surrounded by sidewalls to primarily protect the battery module from external impact, and the upper case on the lower case 100 After the 200 are seated, they may be fixed to each other by a known fastening means, for example, a long bolt.
- FIG. 3 is an enlarged view of part A of FIG. 2
- FIG. 4 is a perspective view of a first stopper mounted on a battery pack according to a preferred embodiment of the present invention
- FIG. 6 is a perspective view of a module frame mounted on a battery pack according to a preferred embodiment of the present invention.
- the first stopper 400 includes a column-shaped first pressing part 410 in close contact with the pressing surface 320, which is the outer surface of the module frame 300, and a pair extending a predetermined length to both sides of the first pressing part 410 It is configured to include the wing portion 420 of.
- the first stopper 400 when viewed from above, the first stopper 400 is approximately similar to a 'T' shape.
- the front part of the first pressing part 410 that is, the part in close contact with the pressing surface 320 of the module frame 300 protrudes slightly toward the front (X-axis direction) to increase the pressing force, for example It is preferable to be somewhat rounded along the circumferential direction.
- the central part of the front and rear surfaces of the first pressing part 410 protrude slightly.
- the front side of the first pressing part 410 has a shape in which the central portion protrudes forward relative to the upper and lower portions, and in the case of the rear side, the central portion protrudes more backward than the upper and lower portions.
- this not only enables the module frame 300 to be fixed in close contact with a stronger force, but also prevents the first stopper 400 from falling out easily when the first stopper 400 is accommodated in the first accommodating part of the side wall of the lower case 100, which will be described later. is to avoid
- the front and rear central portions of the first pressing portion 410 protrude slightly from the lower portion, it is easy to mount the first pressing portion 410 to the first accommodating portion of the sidewall of the lower case 100.
- first inclined surface 411 slightly inclined toward the front on the upper surface of the first pressing part 410, which means that the module frame 300 to be mounted is along the first inclined surface 411 to the lower case ( 100) so that it can be easily drawn into.
- the sidewall of the lower case 100 that is, the first accommodating portion 110 for fixing the above-described first stopper 400 is formed on the portion facing the pressing surface 320 of the module frame 300. .
- the first accommodating part 110 is composed of a receiving groove 111, a horizontal supporting jaw 112, a pair of vertical supporting jaws 113 and an opening 114.
- the receiving groove 111 has a shape in which a part of the first pressing part 410 of the first stopper 400 and the wings 420 can be accommodated, and has a substantially rectangular structure when viewed from above, and the rear surface of the first pressing part 410 And the wing portion 420 is in close contact with some surfaces.
- the horizontal support jaw 112 supports the lower surface of the wing portion 420 so that the first stopper 400 does not go down, and the pair of vertical support jaws 113 block the front portion of the wing portion 420 to prevent the first stopper 400 from going down. This is to prevent the receiving part 110 from falling forward.
- the opening 114 is provided between the pair of vertical support jaws 113, and the first pressing portion 410 protrudes forward by a predetermined length through the opening 114, thereby extending the module frame 300.
- the pressing surface 320 is pressed.
- the lower case 100 and the module frame 300 are primarily fixed below the side of the module frame 300 as shown in FIG. A bolt fastening groove 330 for doing so is provided. Therefore, after the module frame 300 is accommodated in the lower case 100, the lower case 100 and the module frame 300 are first fixed using bolts 340, and then the first accommodating part 110 holds the first It is preferable to mount the stopper 400.
- the first pressing part 410 when the first stopper 400 is mounted on the first accommodating part 110, the first pressing part 410 must be long enough to reliably press the pressing surface 320 of the module frame 300. It is self-evident that you must have
- the first stopper 400 is not particularly limited as long as it is a material having a predetermined elasticity, and may be a silicon material, for example.
- the battery cell is not shown in FIG. 6, the battery cell, more specifically, the cylindrical battery cell is accommodated in the battery cell accommodation groove 310 of the module frame 300.
- a cylindrical battery cell usually includes an electrode assembly, an insulating member, a cathode lead wire, a cap assembly, and a battery can accommodating them.
- the electrode assembly is a jelly-roll type electrode assembly composed of a structure in which a separator is interposed between a long sheet-type positive electrode and a negative electrode and then wound, or a unit cell having a structure in which rectangular positive and negative electrodes are stacked with a separator interposed therebetween.
- a stack-type electrode assembly configured, a stack-folding type electrode assembly in which unit cells are wound by a long separation film, or a lamination-stack type electrode assembly in which unit cells are stacked and attached to each other with a separator interposed therebetween, etc. It can be done.
- a positive lead wire attached to the top of the electrode assembly is electrically connected to the cap assembly, and a negative lead wire attached to the bottom of the electrode assembly is connected to the bottom of the battery can.
- an insulating member may be positioned above the electrode assembly, and the insulating member serves to insulate between the electrode assembly and the cap assembly.
- the cap assembly is located on top of the insulating member, electrically connected to the positive electrode lead wire attached to the top of the electrode assembly, and coupled to the upper open end of the battery can to seal the electrode assembly accommodated inside the battery can.
- a current blocking member, a current blocking gasket, a safety vent, and a top cap are sequentially stacked from the bottom, and a crimping gasket and a welding holder may be positioned on an outer rim of the safety vent and the top cap.
- FIG. 7 is an enlarged view of part B of FIG. 2
- FIG. 8 is a front perspective view of a second stopper mounted on a battery pack according to a preferred embodiment of the present invention
- FIG. 9 is a bottom view of the second stopper shown in FIG. It is a perspective view from
- the second stopper 500 includes a columnar second pressing portion 510 , a head portion 520 and a connecting portion 530 .
- the second pressing part 510 has an end having a predetermined diameter and length so that one side is in close contact with the pressing surface 320 of the module frame 300 and the other side is in close contact with the inner surface of the lower case 100.
- a slightly curved cylindrical shape is preferred.
- the head part 520 is located on the outer surface of the lower case 100, and the inner surface of the head part 520 is in close contact with the outer surface of the lower case 100, and may have a round shape having a predetermined thickness. This is a configuration for connecting the second pressing part 510 and the head part 520.
- Figure 10 is a perspective view of the second accommodating part to which the second stopper is mounted as seen from the outside of the lower case
- Figure 11 is a perspective view of the second accommodating part to which the second stopper is mounted as viewed from the inside of the lower case
- Figure 12 is a perspective view of part B of FIG. 2 It is a perspective view to explain how the stopper is installed.
- the sidewall of the lower case 100, in detail, the second accommodating part 120 for fixing the above-described second stopper 500 is provided at a place facing the pressing surface 320 of the module frame 300.
- the second accommodating portion 120 is composed of a through hole 121, an outer supporting jaw 122, and an inner supporting jaw 123.
- the through hole 121 is a place where the connection part 530 is located, and is slightly smaller than the diameter of the connection part 530 to securely support the connection part 530 and prevent moisture from entering, and the outer supporting jaw 122 has a head part. (520) is supported.
- the outer support jaw 122 is preferably slightly recessed into the side wall so as not to protrude out of the outer surface of the lower case 100 when the head 520 is located, and has a circular shape corresponding to the shape of the head 520 It is preferable that it is slightly larger than the diameter of the head 520 .
- the inner support jaw 123 is preferably slightly recessed to support a portion of the second pressing part 510, that is, the vicinity of the connecting part 530, and has a circular shape identical to the outer shape of the connecting part 530 and is slightly larger than the diameter of the connecting part 530. Bigger is better.
- the diameter of the head part 520 is the largest, and the second pressing part 510 and the connection part 530 are smaller in order, which makes it easy to mount the second stopper 500 on the second receiving part 120 and Also to make sure it doesn't fall off.
- the second pressing part 510 should have a length sufficient to reliably press the pressing surface 320 of the module frame 300. Ham is self-evident.
- the process of mounting the second accommodating part 210 is, as described in the case of the first accommodating part 110, after receiving the module frame 300 in the lower case 100, using the bolt B to lower the case. It is preferable to first fix the (100) and the module frame 300, and then mount the second stopper 500 to the second accommodating part 120.
- the second pressing part 510 passes through the through hole 121 and moves from the outer surface of the lower case 100 until it comes to the inner supporting jaw 123. push it to the side
- the second stopper 500 may also be made of the same material as the first stopper 400 .
- FIG. 13 is a perspective view of the second stopper before being mounted on the battery pack as seen from below.
- the second stopper 500 shown in FIG. 13 has one side connected to the recessed portion 511, and the rest of the configuration except that the gripping rod 512 extending longer and smaller than the diameter of the through hole 121 is further provided. It is the same as the configurations described above.
- the gripping rod 512 may assist in assembling the second stopper 500 more conveniently. Specifically, after passing the gripping rod 512 through the through hole 121 first, the head 520 is pushed in while pulling the gripping rod 512 with one hand. Of course, after the second stopper 500 is assembled to the second accommodating part 120, a part of the gripping rod 512 may be cut.
- Such a battery pack can be used as a power supply source for various devices.
- first pressing part 411 first inclined surface
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Abstract
Description
Claims (11)
- 소정 크기의 공간부가 마련된 하부케이스;상기 하부케이스 상부에 위치하여 서로 체결되는 상부케이스;상기 하부케이스와 상부케이스 공간부에 수납되며, 전지셀 수용홈이 마련된 하나 이상의 모듈 프레임; 및상기 전지셀 수용홈에 수납되는 전지셀;을 포함하되,상기 모듈 프레임 외측면과 하부케이스 내측면 사이에는 외부 충격으로부터 모듈 프레임을 보호하기 위한 충격 완화 부재가 구비되어 있는 것을 특징으로 하는 전지팩.
- 제1항에 있어서,상기 충격 완화 부재는 제1 스토퍼이고,상기 제1 스토퍼는, 모듈 프레임 외측면과 밀착하는 기둥형상의 제1 가압부, 및 상기 제1 가압부 양측면으로 소정 길이 연장된 한 쌍의 날개부를 포함하는 것을 특징으로 하는 전지팩.
- 제2항에 있어서,상기 하부케이스 측벽에는 상기 제1 스토퍼를 고정하기 위한 제1 수용부가 구비되며,상기 제1 수용부는, 상기 날개부가 안착 및 고정될 수 있도록 후면과 측면을 감싸는 수납홈, 상기 날개부 저면을 지지하는 수평 지지턱, 상기 날개부의 전면 일부를 지지하는 한 쌍의 수직 지지턱, 및 상기 제1 가압부가 전방을 향해 소정 길이 돌출할 수 있도록 상기 한 쌍의 수직 지지턱 사이에 마련된 개방구를 포함하는 것을 특징으로 하는 전지팩.
- 제2항에 있어서,상기 제1 가압부의 전면은 높이 방향을 기준으로 할 때, 상부 및 하부 보다 중앙부가 상대적으로 전방을 향해 돌출한 형상인 것을 특징으로 하는 전지팩.
- 제2항에 있어서,상기 제1 가압부의 후면은 높이 방향을 기준으로 할 때, 상부 및 하부 보다 중앙부가 상대적으로 후방을 향해 돌출한 형상인 것을 특징으로 하는 전지팩.
- 제1항에 있어서,상기 충격 완화 부재는 제2 스토퍼이고,상기 제2 스토퍼는, 일측은 모듈 프레임 외측면과 밀착하고 타측은 하부케이스 내측면과 밀착하는 기둥 형상의 제2 가압부, 일측면이 하부케이스 외측면과 밀착하는 머리부, 및 상기 제2 가압부와 머리부를 이어주는 연결부를 포함하는 것을 특징으로 하는 전지팩.
- 제6항에 있어서,상기 하부케이스 측벽에는 상기 제2 스토퍼를 고정하기 위한 제2 수용부가 구비되며,상기 제2 수용부는, 상기 연결부가 위치하기 위한 관통홀, 상기 머리부를 지지할 수 있도록 상기 하부케이스 외측면에 형성된 외측 지지턱, 및 상기 제2 가압부 일부를 지지할 수 있도록 상기 하부케이스 내측면에 형성된 내측 지지턱을 포함하는 것을 특징으로 하는 전지팩.
- 제7항에 있어서,상기 제2 가압부, 머리부, 및 연결부는 원기둥 형상이고, 상기 연결부의 직경은 상기 제2 가압부 및 머리부 보다 상대적으로 작고,상기 관통홀의 직경은 상기 제2 가압부 및 머리부 보다 상대적으로 작은 것을 특징으로 하는 전지팩.
- 제8항에 있어서,상기 머리부의 직경은 상기 제2 가압부의 직경보다 큰 것을 특징으로 하는 전지팩.
- 제7항에 있어서,상기 제2 가압부 일측 단부에는 소정의 공간부를 형성하도록 함몰부가 형성되어 있는 것을 특징으로 하는 전지팩.
- 제1항 내지 제10항 중 어느 한 항에 기재된 전지팩이 장착된 디바이스.
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KR20210042656A (ko) * | 2019-10-10 | 2021-04-20 | 주식회사 엘지화학 | 배터리 팩 |
KR20210103280A (ko) * | 2020-02-13 | 2021-08-23 | 현대자동차주식회사 | 전기차량용 배터리 수납 장치 |
KR20210157889A (ko) | 2020-06-22 | 2021-12-29 | 갈릴레오 테크놀로지스 코포레이션 | 마이크로터빈 및 제조 방법 |
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JP2010146879A (ja) * | 2008-12-19 | 2010-07-01 | Makita Corp | 電動工具のバッテリパック |
JP6662395B2 (ja) * | 2016-01-15 | 2020-03-11 | 株式会社村田製作所 | 電池パック |
KR102167632B1 (ko) | 2016-09-19 | 2020-10-19 | 주식회사 엘지화학 | 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차 |
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KR20210157889A (ko) | 2020-06-22 | 2021-12-29 | 갈릴레오 테크놀로지스 코포레이션 | 마이크로터빈 및 제조 방법 |
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