WO2021225199A1 - Insulating cover for terminal of battery module - Google Patents

Insulating cover for terminal of battery module Download PDF

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Publication number
WO2021225199A1
WO2021225199A1 PCT/KR2020/006264 KR2020006264W WO2021225199A1 WO 2021225199 A1 WO2021225199 A1 WO 2021225199A1 KR 2020006264 W KR2020006264 W KR 2020006264W WO 2021225199 A1 WO2021225199 A1 WO 2021225199A1
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WO
WIPO (PCT)
Prior art keywords
terminal
cover
plate
bottom plate
battery module
Prior art date
Application number
PCT/KR2020/006264
Other languages
French (fr)
Korean (ko)
Inventor
송대천
남상현
강국진
Original Assignee
에너테크인터내셔널 주식회사
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Application filed by 에너테크인터내셔널 주식회사 filed Critical 에너테크인터내셔널 주식회사
Publication of WO2021225199A1 publication Critical patent/WO2021225199A1/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
    • H01M50/572—Means for preventing undesired use or discharge
    • 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
    • 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
    • H01M50/24—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 from their environment, e.g. from corrosion
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/223—Insulating enclosures for terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • 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 terminal terminal insulation cover of a battery module, and more particularly, a member such as a high voltage cable or bus bar is assembled for power connection between a plurality of battery modules, and the terminal terminal exposed to the outside is assembled by covering the terminal terminal with an insulating material It relates to a terminal terminal insulation cover of a battery module for promoting the safety of workers during the process.
  • a battery pack used in an electric vehicle is made by combining a plurality of battery modules configured as a unit module by combining, for example, lithium ion battery cells.
  • Lithium-ion battery cells are in the operating voltage range of 2.5 ⁇ 4.2V, and when a higher output voltage is required, a plurality of battery cells are connected in series.
  • a plurality of battery cells may be connected in parallel according to the charge/discharge capacity required for the battery pack. Accordingly, the number of battery cells included in the battery pack may be variously set according to a required output specification.
  • a battery module combining an appropriate number of battery cells is first configured in consideration of handling and safety according to high voltage, and an appropriate number of battery modules After adding other components by combining them, they are accommodated and protected in a battery housing made of metal for rigidity.
  • the battery pack needs to protect the exposed terminal terminals, and since it is located close to the battery housing made of surrounding metal, there is a risk of short circuit, so it is necessary to cover and insulate the terminal terminals for safe work during the assembly process. have.
  • the insulation cover of the prior art covers the terminal of the battery pack, is detachably mounted on the battery pack, and is provided on both sides of the cover body hook-coupled to the pack case of the battery pack and the cover body, and according to the user's pressure It is characterized in that it includes a removal guide for releasing the hook coupling of the cover body, and it is possible to prevent damage to the pack case due to removal and to exhibit the effect of having easier detachability.
  • the insulating cover of the prior art is made of a soft synthetic resin to allow elastic deformation of the cover body and is manufactured by injection molding using a mold, the design of the mold for injection molding the cover body is complicated and expensive. There is a disadvantage of increasing the manufacturing cost due to the use of equipment, and when manufacturing an insulating cover to protect the part where the terminal terminal of the adjacent battery module is connected with a bus bar, the structure of the cover body becomes more complicated, so there is a problem that aggravates the manufacturing cost. have.
  • the insulation cover of the prior art is a method in which the removal guide part is elastically deformed to release the hook coupling of the cover body according to user manipulation, wear of the cover body easily occurs and the fastening force with the pack case is weakened, and there is a fear that it can be easily removed. , because it is completely separated from the pack case, it is not easy to combine and disengage, and there is a risk of accidental loss, which causes inconvenience of finding and economic loss due to the use of a new cover body.
  • the present invention is to solve the conventional problems as described above, and its purpose is to cut and mold a thin plate-like member in an unfolded shape in manufacturing an insulating cover that covers the terminal terminals of a battery module, and then fold a predetermined portion of the box
  • the terminal terminal of the battery module can greatly reduce the manufacturing cost of the insulation cover by configuring it in a shape forming method, and in particular, the terminal terminal of the battery module that can cover the part where the terminal terminal of the adjacent battery module is connected with a bus bar can be manufactured very easily To provide an insulating cover.
  • Another object of the present invention is to expose or cover the terminal terminals by a simple operation of opening and closing a part of the insulation cover without completely disengaging the insulation cover after coupling the insulation cover to cover the terminal terminals. It is to provide a terminal terminal insulation cover of the battery module that is very convenient and there is no fear of loss or loss of function due to wear.
  • the present invention includes: a rectangular bottom plate having a through hole through which the terminal terminal of the battery module passes, and forming a hook portion to be caught on the bottom surface of the terminal terminal; four side plates each successively formed from the four sides of the bottom plate to form an accommodating space capable of accommodating a connection part including a terminal terminal therein; four cover plates formed in succession on each of the four side plates to cover the upper portion of the accommodation space formed by the side plates; and a coupling means capable of coupling the four cover plates to maintain a state covering the upper part of the accommodating space or releasing the coupling to open the upper part of the accommodating space, wherein the bottom plate, the side plate, and the cover plate are made of a synthetic resin material. It is characterized in the terminal terminal insulation cover of the battery module formed by punching the member in the unfolded shape, and forming first and second bending lines to facilitate folding at each connection portion of the bottom plate, side plate, and cover plate.
  • the coupling means is composed of first and second coupling pieces provided at the ends of any of the cover plates facing each other among the four cover plates, and the first and second coupling pieces are the cover plates.
  • the battery module is formed by a cutout formed from one end to the 1/2 point of the battery module, wherein the first and second coupling pieces are alternately formed in opposite directions and are positioned on the upper surface of the opposite side cover plate to overlap each other when coupled to each other It is characterized by the terminal terminal insulation cover of
  • a lateral through hole through which a part of the terminal terminal penetrates and is exposed outside the accommodation space is formed, and the side plate on which the lateral through hole is formed has a terminal terminal exposed out of the accommodation space.
  • a third bending line for facilitating folding is provided at a portion of the auxiliary cover plate that covers a part, wherein the auxiliary cover plate is continuously formed on the side plate when the bottom plate, the side plate, and the cover plate are formed in an unfolded shape, and is connected to the side plate
  • the lateral through-hole is characterized in the terminal terminal insulation cover of the battery module formed by setting the position of the third bending line by separating the lateral through-hole by a predetermined length from the first bending line of the bottom plate toward the side plate.
  • the insulation cover is made of a bottom plate, a side plate, and a cover plate to form a box shape by cutting a thin plate-like member in a developed shape using a press punching machine and folding a predetermined part.
  • the insulation cover is easy to manufacture and can be mass-produced at a low cost compared to the conventional configuration manufactured using complex molds and expensive injection molding machines, thereby significantly reducing the manufacturing cost of the insulating cover, especially adjacent batteries. It is possible to insulate and protect the part where the two terminal terminals between modules are connected with a bus bar with one insulating cover, thereby further reducing the manufacturing cost.
  • the present invention has a structure in which the terminal terminal is accommodated in the receiving space through the through hole of the bottom plate, the bottom plate is caught on the bottom of the terminal terminal, and the cover plate covers the upper part of the receiving space, so the insulating cover is used as the terminal terminal.
  • Terminal terminals can be exposed or covered by a simple operation of opening and closing only the cover plate without completely disassembling them from the device. It has the effect of relieving the hassle.
  • FIG. 1 is a perspective view of a battery pack showing a state in which the terminal terminal insulation cover according to the present invention is installed.
  • Figure 2 is a detailed view of part A in Figure 1;
  • FIG. 3 is a detailed view of part B in FIG. 1 .
  • FIG. 4 is a cross-sectional view of a main part of a battery module showing a state in which the terminal terminal insulation cover according to the present invention is installed.
  • FIG. 5 is a plan view of the main part of the battery module showing a state in which the terminal terminal insulation cover according to the present invention is installed, and is a plan view in a state in which the cover plate of the insulation cover is opened.
  • FIG. 6 (a) to (c) are perspective views showing a process of forming the terminal terminal insulating cover according to the present invention.
  • FIG. 1 is a perspective view of a battery pack showing a state in which the terminal terminal insulation cover of the battery module according to the present invention is installed. It is made by combining a plurality of modules (2). In addition, after adding a plurality of combined battery modules 2 and other components, they are accommodated and protected in the battery housing 3 made of a metal material for rigidity.
  • the battery module 2 is provided with a terminal terminal 4 for power connection and is exposed, and the terminal terminal 4 is connected by a high voltage cable 5 or a bus bar 6 having excellent electrical conductivity.
  • An insulating cover is used to both cover and insulate the power connection part of the terminal (4).
  • FIG. 2 to 5 show an installation state of the insulating cover 10 of the present invention
  • FIG. 6 shows a process in which the insulating cover 10 of the present invention is configured.
  • An insulating cover 10 for performing a cover and insulating function is shown for the portion where the terminal terminal 4 is connected to the bus bar 6 .
  • the insulating cover 10 of the present invention is configured in the form of a hexahedral box consisting of a thin plate-shaped bottom plate 11 , a side plate 12 , and a cover plate 13 .
  • the bottom plate 11 forms two through-holes 11a through which the terminal terminals 4 of both adjacent battery modules 2 pass, as shown in FIGS. 2 and 6, and the bottom surface of the both terminal terminals 4 To form a hook portion (11b) that is kept hooked.
  • the bottom plate 11 is formed in a rectangular shape and has an area that is at least larger than the area occupied by both battery modules 2 .
  • first bending line 21 is formed at the connection portion between the bottom plate 11 and the side plate 12, so that the bottom plate It is easy to bend the side plate 12 from (11) to erect it in a right angle direction with respect to the bottom plate 11, and the first bending line 21 is the bottom plate 11 and the side plate as detailed in FIG. It can be comprised by forming the groove part 24 between (12) and making thickness thin.
  • the four side plates 12 include the bus bar 6 and the fastening bolt 7, including the two terminal terminals 4, a accommodating space 12a that is sufficiently accommodated therein. Set its length so that it is formed.
  • cover plates 13 are formed in succession on each of the four side plates 12 , and are intended to cover the upper portion of the accommodation space 12a formed by the side plates 12 .
  • a second bending line 22 is formed in the connection portion between the side plate 12 and the cover plate 13 so that it is easy to bend the cover plate 13 from the side plate 12 in a direction perpendicular to the side plate 12.
  • the second bending line 22 can be configured by forming a groove 24 between the side plate 12 and the cover plate 13 to reduce the thickness.
  • the length of the cover plate 13 is set to sufficiently cover the upper portion of the accommodation space 12a with the cover plates 13 on both sides of the cover plate 13 facing each other.
  • the present invention includes a coupling means capable of coupling the four cover plates 13 so as to maintain the state covering the upper portion of the receiving space 12a or releasing the coupling so as to open the upper portion of the receiving space 12a.
  • the coupling means is composed of the first and second coupling pieces 14a and 14b provided at the ends of any of the cover plates 13 facing each other among the four cover plates 13, the narrow width and the long side. That is, it is preferable to form both cover plates 13 located on the left and right in FIG. 6 .
  • the first and second coupling pieces 14a and 14b may be configured by forming the cutout portions 15 in a direction perpendicular to the direction in which the upper portion of the accommodation space 12a is covered with both cover plates 13 .
  • the cut-out 15 is formed from one end to the 1/2 point, and the cut-out 15 on the left side in the drawing is formed from the lower foot end so that they can be inserted into each other, and the cut-out portion 15 on the right side is formed from the top. .
  • first and second coupling pieces 14a and 14b formed by the cut-out portion 15 are alternately formed in opposite directions to each other, and are positioned on the upper surface of the opposite side cover plate 13 when they are coupled to each other and are coupled by overlapping. It is configured to be able to hold and also to be easily disengaged.
  • the insulating cover 10 comprising the bottom plate 11, the side plate 12, and the cover plate 13 is formed by punching a plate-like member made of a thin synthetic resin material with insulation with a press punching machine, as shown in FIG. 6(a).
  • the side plate 12 and the cover plate 13 are formed by forming the unfolded shape, and at the same time, the connecting portions of the bottom plate 11, the side plate 12, and the cover plate 13 are press-molded to form the groove part 24. ) can be easily manufactured by forming the first and second bending lines 21 and 22 for easy folding.
  • the insulating cover 10 of the present invention when the size of the bottom plate 11 constituting the bottom area of the accommodating space 12a is set so that the entire terminal terminal 4 is accommodated therein, the shape of the terminal terminal 4 is In some cases, the overall volume of the insulating cover 10 increases, so that it may be difficult to install in a narrow space of the battery module 2 .
  • a lateral through-hole 31 is formed in one of the four side plates 12 through which a portion 4a of the terminal terminal 4 penetrates and is exposed outside the receiving space 12a, and the lateral through-hole is formed.
  • An auxiliary cover plate 32 covering a portion 4a of the terminal terminal 4 exposed outside the accommodation space 12a may be formed on the side plate 12 on which the 31 is formed.
  • the auxiliary cover plate 32 may be formed consecutively on the side plate 12 when the bottom plate 11, the side plate 12, and the cover plate 13 are formed in a deployed shape as in FIG. 6(a), It can be configured by forming a third bending line 23 that facilitates folding in a portion connected to the side plate 12 .
  • the lateral through-hole 31 is spaced a predetermined length from the first bending line 21 of the bottom plate 11 toward the side plate 12 to set the position of the third bending line 23 in Fig. 6 (b).
  • the lateral through-hole 31 may be formed in the side plate 12 by folding the third bent line 23 as in FIG.
  • both terminal terminals 4 are accommodated in the accommodating space 12a with an open upper part by keeping it hooked on the bottom surface, and at the same time, a part 4a of both terminal terminals 4 is formed through the lateral through-hole 31 ) through the accommodating space 12a, the insulating cover 10 can be installed on the battery module 2 in a state of being exposed to the outside and covered by the auxiliary cover plate 32 .
  • the cover plate 13 is By folding the second bending line 22 to cover the upper portion of the accommodation space 12a, the bus bar 6 including both terminal terminals 4 and the fastening bolt 7 can be covered.
  • the cover plate ( 13) keeps the receiving space 12a covered, so that the connection part of the terminal terminal 4 can be insulated and protected.
  • the present invention can simply open the upper portion of the receiving space (12a) by disconnecting the first and second coupling pieces (14a, 14b) of the cover plate (13), so that the terminal terminal (4) After inspection or repair by exposing the connection part of ), since the hook portion 11b formed on the bottom plate 11 is caught on the bottom of the terminal terminal 4 and is not separated, it is a hassle to find the insulation cover 10 by mistake or to find a new insulation. It is possible to prevent the economic loss that must be covered by using the cover 10 .
  • part 10 insulating cover
  • the terminal terminal insulation cover of the battery module according to the present invention can greatly reduce the manufacturing cost of the insulation cover by cutting and forming a thin plate-like member in a developed shape, and then folding a predetermined portion to form a box shape. Terminal terminals can be exposed or covered by a simple operation of opening and closing a part of the insulation cover without completely disassembling the battery module.

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

Abstract

The present invention provides an insulating cover for a terminal of a battery module. The insulating cover is configured by cutting and forming a thin plate-shaped member into an unfolded shape, and then folding a certain portion to form a box shape. Thus, the cost of manufacturing the insulating cover can be significantly reduced. Moreover, since a terminal can be exposed or covered by a simple manipulation of opening or closing a portion of the insulating cover without completely uncoupling the insulating cover, the insulating cover is very convenient to use. The insulating cover of the present invention comprises: a bottom plate having a through-hole through which a terminal of a battery module passes; a side plate having an accommodation space in which a connection part including the terminal can be accommodated; a cover plate covering the top of the accommodation space; and a coupling means by which the cover plate can be coupled so as to maintain a state of covering the top of the accommodation space, or uncoupled, wherein the bottom plate, the side plate, and the cover plate are formed by punching a plate-shaped member of a synthetic resin material in an unfolded shape, and first and second folding lines facilitating folding are formed in each of connection parts of the bottom plate, the side plate, and the cover plate.

Description

배터리모듈의 터미널단자 절연커버Terminal terminal insulation cover of battery module
본 발명은 배터리모듈의 터미널단자 절연커버에 관한 것으로, 더욱 상하게는 다수의 배터리모듈간에 전원 연결을 위해 고전압 케이블 또는 버스바 등의 부재가 조립되어 외부로 노출되는 터미널단자를 절연재질로 커버하여 조립공정시 작업자의 안전을 도모하기 위한 배터리모듈의 터미널단자 절연커버에 관한 것이다.The present invention relates to a terminal terminal insulation cover of a battery module, and more particularly, a member such as a high voltage cable or bus bar is assembled for power connection between a plurality of battery modules, and the terminal terminal exposed to the outside is assembled by covering the terminal terminal with an insulating material It relates to a terminal terminal insulation cover of a battery module for promoting the safety of workers during the process.
일반적으로 전기자동차에 사용되는 배터리팩은, 예를 들어 리튬이온 배터리셀을 조합하여 단위 모듈로 구성한 배터리모듈을 다수개 조합하여 이루어진다. 리튬이온 배터리셀은 2.5~4.2V의 동작전압 범위에 있으며, 이보다 더 높은 출력 전압이 요구될 경우, 다수의 배터리셀을 직렬로 연결하여 구성하게 된다. 또한 배터리팩에 요구되는 충방전 용량에 따라 다수의 배터리셀을 병렬로 연결하여 구성하기도 한다. 따라서, 상기 배터리팩에 포함되는 배터리셀의 개수는 요구되는 출력 사양에 따라 다양하게 설정될 수 있다.In general, a battery pack used in an electric vehicle is made by combining a plurality of battery modules configured as a unit module by combining, for example, lithium ion battery cells. Lithium-ion battery cells are in the operating voltage range of 2.5 ~ 4.2V, and when a higher output voltage is required, a plurality of battery cells are connected in series. In addition, a plurality of battery cells may be connected in parallel according to the charge/discharge capacity required for the battery pack. Accordingly, the number of battery cells included in the battery pack may be variously set according to a required output specification.
한편, 다수의 배터리셀을 직렬 또는 병렬로 연결하여 배터리팩을 구성할 경우, 고전압에 따른 취급 및 안전 등을 고려하여 적절한 개수의 배터리셀을 조합한 배터리모듈을 먼저 구성하고, 적절한 개수의 배터리모듈을 조합하여 기타 구성요소를 추가한 후 강성을 위해 금속재질로 이루어진 배터리하우징 내에 수용하여 보호하며, 배터리모듈 간에는 전원 연결에 필요한 터미널단자를 일측에 노출시켜 전기 전도가 우수한 고전압 케이블 또는 버스바 등으로 연결하게 된다.On the other hand, when configuring a battery pack by connecting a plurality of battery cells in series or in parallel, a battery module combining an appropriate number of battery cells is first configured in consideration of handling and safety according to high voltage, and an appropriate number of battery modules After adding other components by combining them, they are accommodated and protected in a battery housing made of metal for rigidity. will connect
또한 배터리팩은 노출된 터미널단자를 보호할 필요가 있고, 주변 금속재질의 배터리하우징과 근접하여 위치되므로 단락 등의 위험이 있어 조립공정시 안전한 작업을 위해 터미널단자를 커버함과 동시에 절연할 필요가 있다.In addition, the battery pack needs to protect the exposed terminal terminals, and since it is located close to the battery housing made of surrounding metal, there is a risk of short circuit, so it is necessary to cover and insulate the terminal terminals for safe work during the assembly process. have.
이와 같이 배터리팩의 터미널단자를 커버함과 동시에 절연하기 위한 절연커버의 종래기술로서, 예를 들어 국내 공개특허 10-2019-0088675호에 개시된 터미널 커버 및 이를 포함하는 배터리팩(이하, '종래기술'이라 함.)이 알려져 있다.As a prior art of an insulating cover for simultaneously insulating and covering the terminal terminals of the battery pack as described above, for example, a terminal cover disclosed in Korean Patent Application Laid-Open No. 10-2019-0088675 and a battery pack including the same (hereinafter, 'prior art') ') is known.
상기 종래기술의 절연커버는, 배터리팩의 터미널을 커버하며, 탈착 가능하게 배터리팩에 장착되는 것으로, 배터리팩의 팩케이스에 후크 결합되는 커버본체 및 커버본체의 양측면에 마련되고, 사용자 가압에 따라 커버본체의 후크 결합을 해제시키는 탈거 가이드부를 포함하는 것을 특징으로 하고 있으며, 탈착에 따른 팩케이스의 손상을 방지할 수 있고, 보다 용이한 탈착성을 갖는 효과를 발휘하는 것으로 되어 있다.The insulation cover of the prior art covers the terminal of the battery pack, is detachably mounted on the battery pack, and is provided on both sides of the cover body hook-coupled to the pack case of the battery pack and the cover body, and according to the user's pressure It is characterized in that it includes a removal guide for releasing the hook coupling of the cover body, and it is possible to prevent damage to the pack case due to removal and to exhibit the effect of having easier detachability.
그러나, 종래기술의 절연커버는 커버본체의 탄성변형이 자유롭게 하기 위해 연질의 합성수지로 이루어지고, 금형을 이용한 사출성형으로 제조되는 것이므로, 커버본체를 사출성형하기 위한 금형의 설계가 복잡하고 고가의 제조장비를 사용하므로 제조비용을 상승시키는 단점이 있으며, 인접한 배터리모듈의 터미널단자를 버스바로 연결한 부분을 보호하기 위한 절연커버를 제작할 경우, 커버본체의 구조가 더욱 복잡해지므로 제조비용을 가중시키는 문제가 있다.However, since the insulating cover of the prior art is made of a soft synthetic resin to allow elastic deformation of the cover body and is manufactured by injection molding using a mold, the design of the mold for injection molding the cover body is complicated and expensive. There is a disadvantage of increasing the manufacturing cost due to the use of equipment, and when manufacturing an insulating cover to protect the part where the terminal terminal of the adjacent battery module is connected with a bus bar, the structure of the cover body becomes more complicated, so there is a problem that aggravates the manufacturing cost. have.
또한, 종래기술의 절연커버는 사용자 조작에 따른 커버본체의 후크 결합 해제를 위해 탈거 가이드부가 탄성변형하는 방식이므로, 커버본체의 마모가 쉽게 발생하여 팩케이스와의 체결력이 약해져 쉽게 탈거될 염려가 있고, 팩케이스로부터 완전히 분리되는 것이므로 결합 및 결합해제 작업이 용이하지 않고 실수로 분실할 염려가 있어 찾아야 하는 번거로움과 새로운 커버본체를 사용함에 따른 경제적 손실을 초래하였다. In addition, since the insulation cover of the prior art is a method in which the removal guide part is elastically deformed to release the hook coupling of the cover body according to user manipulation, wear of the cover body easily occurs and the fastening force with the pack case is weakened, and there is a fear that it can be easily removed. , because it is completely separated from the pack case, it is not easy to combine and disengage, and there is a risk of accidental loss, which causes inconvenience of finding and economic loss due to the use of a new cover body.
본 발명은 상기와 같은 종래의 문제를 해결하기 위한 것으로, 그 목적은 배터리모듈의 터미널단자를 커버하는 절연커버를 제조함에 있어 얇은 판상부재를 전개형상으로 절단하여 성형한 후, 소정부위를 접어 박스형태를 이루는 방식으로 구성함으로써 절연커버의 제작비용을 대폭 절감할수 있고, 특히 인접한 배터리모듈의 터미널단자를 버스바로 연결한 부분을 커버할 수 있는 절연커버를 매우 용이하게 제작할 수 있는 배터리모듈의 터미널단자 절연커버를 제공하는데 있다.The present invention is to solve the conventional problems as described above, and its purpose is to cut and mold a thin plate-like member in an unfolded shape in manufacturing an insulating cover that covers the terminal terminals of a battery module, and then fold a predetermined portion of the box The terminal terminal of the battery module can greatly reduce the manufacturing cost of the insulation cover by configuring it in a shape forming method, and in particular, the terminal terminal of the battery module that can cover the part where the terminal terminal of the adjacent battery module is connected with a bus bar can be manufactured very easily To provide an insulating cover.
또한 본 발명의 다른 목적은 터미널단자를 커버하도록 절연커버를 결합한 후에는, 절연커버를 완전히 결합해제하지 않고도 절연커버의 일부분을 개폐하는 간단한 조작에 의해 터미널단자를 노출시키거나 커버할 수 있어, 사용이 매우 편리하고 마모로 인한 기능상실과 분실의 염려가 없는 배터리모듈의 터미널단자 절연커버를 제공하는데 있다.Another object of the present invention is to expose or cover the terminal terminals by a simple operation of opening and closing a part of the insulation cover without completely disengaging the insulation cover after coupling the insulation cover to cover the terminal terminals. It is to provide a terminal terminal insulation cover of the battery module that is very convenient and there is no fear of loss or loss of function due to wear.
상기의 목적을 달성하기 위하여 본 발명은, 배터리모듈의 터미널단자가 통과하는 관통구멍을 형성하고, 상기 터미널단자의 저면에 걸림유지되는 걸이부를 형성한 사각형상의 바닥판; 상기 바닥판의 4변으로부터 각각 연이어 형성되고 터미널단자를 포함하는 연결부분을 내부에 수용할 수 있는 수용공간을 형성하기 위한 4개의 측판; 상기 4개의 측판에 각각 연이어 형성되어 측판에 의해 형성되는 수용공간의 상부를 덮는 4개의 덮개판; 및 상기 4개의 덮개판이 수용공간의 상부를 덮은 상태가 유지되도록 결합하거나 수용공간의 상부를 개방하도록 결합해제하는 것이 가능한 결합수단을 포함하여 이루어지고, 상기 바닥판, 측판, 덮개판은 합성수지재의 판상부재를 전개형상으로 타발하여 형성하고, 바닥판, 측판, 덮개판의 각 연결부분에는 접는 것을 용이하게 하는 제1 및 제2 절곡라인을 형성한 배터리모듈의 터미널단자 절연커버에 특징이 있다.In order to achieve the above object, the present invention includes: a rectangular bottom plate having a through hole through which the terminal terminal of the battery module passes, and forming a hook portion to be caught on the bottom surface of the terminal terminal; four side plates each successively formed from the four sides of the bottom plate to form an accommodating space capable of accommodating a connection part including a terminal terminal therein; four cover plates formed in succession on each of the four side plates to cover the upper portion of the accommodation space formed by the side plates; and a coupling means capable of coupling the four cover plates to maintain a state covering the upper part of the accommodating space or releasing the coupling to open the upper part of the accommodating space, wherein the bottom plate, the side plate, and the cover plate are made of a synthetic resin material. It is characterized in the terminal terminal insulation cover of the battery module formed by punching the member in the unfolded shape, and forming first and second bending lines to facilitate folding at each connection portion of the bottom plate, side plate, and cover plate.
또한 본 발명에 있어서, 상기 결합수단은 4개의 덮개판중, 마주하는 어느 양쪽 덮개판의 끝단부에 구비되는 제1 및 제2 결합편으로 이루어지고, 상기 제1 및 제2 결합편은 덮개판의 한쪽끝단으로부터 1/2지점까지 형성되는 절결부에 의해 형성되며, 상기 제1 및 제2 결합편은 서로 엇갈리게 반대방향으로 형성되어 상호 결합시 상대측 덮개판의 상면에 위치되어 겹치도록 된 배터리모듈의 터미널단자 절연커버에 특징이 있다. In addition, in the present invention, the coupling means is composed of first and second coupling pieces provided at the ends of any of the cover plates facing each other among the four cover plates, and the first and second coupling pieces are the cover plates. The battery module is formed by a cutout formed from one end to the 1/2 point of the battery module, wherein the first and second coupling pieces are alternately formed in opposite directions and are positioned on the upper surface of the opposite side cover plate to overlap each other when coupled to each other It is characterized by the terminal terminal insulation cover of
또한 본 발명에 있어서, 상기 4개의 측판중 하나에는 터미널단자의 일부분이 관통하여 수용공간 밖으로 노출되는 측방향관통구멍을 형성하고, 상기 측방향관통구멍이 형성된 측판에는 수용공간 밖으로 노출된 터미널단자의 일부분을 덮는 보조덮개판을 구비하며, 상기 보조덮개판은 바닥판, 측판, 덮개판을 전개형상으로 형성할 때 측판에 연이어 형성하고, 측판과의 연결부분에는 접는 것을 용이하게 하는 제3 절곡라인을 형성하며, 상기 측방향관통구멍은 바닥판의 제1 절곡라인으로부터 측판쪽으로 소정길이 이격시켜 제3 절곡라인의 위치를 설정함으로써 형성되는 배터리모듈의 터미널단자 절연커버에 특징이 있다.Also, in the present invention, in one of the four side plates, a lateral through hole through which a part of the terminal terminal penetrates and is exposed outside the accommodation space is formed, and the side plate on which the lateral through hole is formed has a terminal terminal exposed out of the accommodation space. A third bending line for facilitating folding is provided at a portion of the auxiliary cover plate that covers a part, wherein the auxiliary cover plate is continuously formed on the side plate when the bottom plate, the side plate, and the cover plate are formed in an unfolded shape, and is connected to the side plate The lateral through-hole is characterized in the terminal terminal insulation cover of the battery module formed by setting the position of the third bending line by separating the lateral through-hole by a predetermined length from the first bending line of the bottom plate toward the side plate.
상기의 특징적 구성을 가지는 본 발명의 터미널단자 절연커버에 의하면, 프레스 타발기계를 이용하여 얇은 판상부재를 전개형상으로 절단하고 소정부위를 접어 박스형태를 이루는 바닥판, 측판 및 덮개판으로 절연커버가 구성됨에 따라, 복잡한 금형과 고가의 사출성형기계를 이용하여 제조되는 종래의 구성에 비하여 제조가 용이하고 저렴한 비용으로 대량생산이 가능하여 절연커버의 제조비용을 대폭 절감하는 효과가 있으며, 특히 인접한 배터리모듈간 2개의 터미널단자를 버스바로 연결한 부분을 하나의 절연커버로 절연 및 보호할 수 있도록 제작할 수 있어 제조비용을 더욱 절감하는 효과가 있다.According to the terminal terminal insulation cover of the present invention having the above characteristic configuration, the insulation cover is made of a bottom plate, a side plate, and a cover plate to form a box shape by cutting a thin plate-like member in a developed shape using a press punching machine and folding a predetermined part. As it is constructed, it is easy to manufacture and can be mass-produced at a low cost compared to the conventional configuration manufactured using complex molds and expensive injection molding machines, thereby significantly reducing the manufacturing cost of the insulating cover, especially adjacent batteries. It is possible to insulate and protect the part where the two terminal terminals between modules are connected with a bus bar with one insulating cover, thereby further reducing the manufacturing cost.
또한 본 발명은, 바닥판의 관통구멍을 통해 터미널단자가 수용공간에 수용되고, 바닥판을 터미널단자의 저면에 걸림유지시키며, 덮개판으로 수용공간의 상부를 덮는 구조이므로, 절연커버를 터미널단자로부터 완전히 결합해제하지 않고도 덮개판만을 열고 닫는 간단한 조작에 의해 터미널단자를 노출시키거나 커버할 수 있으며, 이로인해 터미널단자의 유지관리가 매우 편리하고 마모로 인한 기능상실을 방지할 수 있으며 분실로 인한 번거로움을 해소하는 효과가 있다. In addition, the present invention has a structure in which the terminal terminal is accommodated in the receiving space through the through hole of the bottom plate, the bottom plate is caught on the bottom of the terminal terminal, and the cover plate covers the upper part of the receiving space, so the insulating cover is used as the terminal terminal. Terminal terminals can be exposed or covered by a simple operation of opening and closing only the cover plate without completely disassembling them from the device. It has the effect of relieving the hassle.
도 1은 본 발명에 따른 터미널단자 절연커버가 설치된 상태를 나타내는 배터리팩의 사시도.1 is a perspective view of a battery pack showing a state in which the terminal terminal insulation cover according to the present invention is installed.
도 2는 도 1에서 A부 상세도.Figure 2 is a detailed view of part A in Figure 1;
도 3은 도 1에서 B부 상세도.3 is a detailed view of part B in FIG. 1 .
도 4는 본 발명에 따른 터미널단자 절연커버가 설치된 상태를 나타내는 배터리모듈의 주요부 단면도.4 is a cross-sectional view of a main part of a battery module showing a state in which the terminal terminal insulation cover according to the present invention is installed.
도 5는 본 발명에 따른 터미널단자 절연커버가 설치된 상태를 나타내는 배터리모듈의 주요부 평면도로서, 절연커버의 덮개판을 개방한 상태의 평면도.5 is a plan view of the main part of the battery module showing a state in which the terminal terminal insulation cover according to the present invention is installed, and is a plan view in a state in which the cover plate of the insulation cover is opened.
도 6의 (a) 내지 (c)는 본 발명에 따른 터미널단자 절연커버가 형성되는 과정을 나타낸 사시도.6 (a) to (c) are perspective views showing a process of forming the terminal terminal insulating cover according to the present invention.
이하, 본 발명의 바람직한 실시예를 첨부도면에 의거하여 상세하게 설명한다. 도 1은 본 발명에 따른 배터리모듈의 터미널단자 절연커버가 설치된 상태를 나타내는 배터리팩의 사시도로서, 도시된 바와 같이 배터리팩(1)은 예를 들어 리튬이온 배터리셀을 조합하여 단위 모듈로 구성한 배터리모듈(2)을 다수개 조합하여 이루어진다. 또한 다수로 조합된 배터리모듈(2)과 기타 구성요소를 추가한 후, 강성을 위해 금속재질로 이루어진 배터리하우징(3) 내에 수용하여 보호된다.Hereinafter, a preferred embodiment of the present invention will be described in detail based on the accompanying drawings. 1 is a perspective view of a battery pack showing a state in which the terminal terminal insulation cover of the battery module according to the present invention is installed. It is made by combining a plurality of modules (2). In addition, after adding a plurality of combined battery modules 2 and other components, they are accommodated and protected in the battery housing 3 made of a metal material for rigidity.
배터리모듈(2)에는 전원 연결을 위한 터미널단자(4)가 구비되어 노출되어 있고, 터미널단자(4)는 전기 전도가 우수한 고전압 케이블(5) 또는 버스바(6) 등으로 연결하게 된다.The battery module 2 is provided with a terminal terminal 4 for power connection and is exposed, and the terminal terminal 4 is connected by a high voltage cable 5 or a bus bar 6 having excellent electrical conductivity.
이러한 터미널단자(4)의 전원 연결부분은 외부로 노출된 것이므로 보호할 필요가 있고, 주변 금속재질의 배터리하우징(3)과 근접하여 위치되므로 단락 등의 위험이 있어 조립공정시 안전한 작업을 위해 터미널단자(4)의 전원 연결부분을 커버함과 동시에 절연하기 위해 절연커버가 사용된다.Since the power connection part of the terminal terminal 4 is exposed to the outside, it is necessary to protect it, and since it is located close to the battery housing 3 of the surrounding metal material, there is a risk of a short circuit. An insulating cover is used to both cover and insulate the power connection part of the terminal (4).
도 2 내지 도 5는 본 발명의 절연커버(10)의 설치상태를 나타내고, 도 6은 본 발명의 절연커버(10)가 구성되는 과정을 나타낸 것으로, 본 실시예에서는 인접한 배터리모듈(2) 간에 터미널단자(4)를 버스바(6)로 연결한 부분에 대해 커버와 절연 기능을 수행하기 위한 절연커버(10)를 나타낸 것이다. 2 to 5 show an installation state of the insulating cover 10 of the present invention, and FIG. 6 shows a process in which the insulating cover 10 of the present invention is configured. In this embodiment, between adjacent battery modules 2 An insulating cover 10 for performing a cover and insulating function is shown for the portion where the terminal terminal 4 is connected to the bus bar 6 .
도시된 바와 같이 본 발명의 절연커버(10)는, 얇은 판상의 바닥판(11), 측판(12) 및 덮개판(13)으로 이루어지는 육면체의 박스형태로 구성된다.As shown, the insulating cover 10 of the present invention is configured in the form of a hexahedral box consisting of a thin plate-shaped bottom plate 11 , a side plate 12 , and a cover plate 13 .
바닥판(11)은 도 2 및 도 6에서와 같이 인접한 양쪽 배터리모듈(2)의 터미널단자(4)가 통과하는 2개의 관통구멍(11a)을 형성하고, 상기 양쪽 터미널단자(4)의 저면에 걸림유지되는 걸이부(11b)를 형성한다. 바닥판(11)은 사각형상으로 형성되고 양쪽 배터리모듈(2)이 차지하는 면적보다는 적어도 큰 면적을 가지도록 형성한다.The bottom plate 11 forms two through-holes 11a through which the terminal terminals 4 of both adjacent battery modules 2 pass, as shown in FIGS. 2 and 6, and the bottom surface of the both terminal terminals 4 To form a hook portion (11b) that is kept hooked. The bottom plate 11 is formed in a rectangular shape and has an area that is at least larger than the area occupied by both battery modules 2 .
본 실시예에서는 인접한 양쪽의 터미널단자(4)를 커버하는 것이므로, 2개의 관통구멍(11a)을 형성하였지만, 하나의 터미널단자(4)를 커버하는 절연커버(10)의 경우에는 1개의 관통구멍(11a)만 형성하고, 그에 따라 바닥판(11)의 면적도 작게 설정할 수 있다.In this embodiment, since the terminal terminals 4 on both sides are covered, two through holes 11a are formed, but in the case of the insulating cover 10 covering one terminal terminal 4, one through hole By forming only (11a), the area of the bottom plate 11 can be set small accordingly.
측판(12)은 상기 바닥판(11)의 4변으로부터 각각 연이어 형성되어 4개가 구비되고, 바닥판(11)과 측판(12)의 연결부분에는 제1 절곡라인(21)이 형성되어 바닥판(11)으로부터 측판(12)을 구부려 바닥판(11)에 대하여 직각방향으로 세우는 것이 용이하도록 되어 있으며, 제1 절곡라인(21)은 도 6에서 상세하게 표현한 바와 같이 바닥판(11)과 측판(12) 사이에 홈부(24)를 형성하여 두께를 얇게 함으로써 구성할 수 있다.Four side plates 12 are sequentially formed from the four sides of the bottom plate 11, respectively, and a first bending line 21 is formed at the connection portion between the bottom plate 11 and the side plate 12, so that the bottom plate It is easy to bend the side plate 12 from (11) to erect it in a right angle direction with respect to the bottom plate 11, and the first bending line 21 is the bottom plate 11 and the side plate as detailed in FIG. It can be comprised by forming the groove part 24 between (12) and making thickness thin.
이러한 4개의 측판(12)은 도 4 및 도 5에 도시된 바와 같이 2개의 터미널단자(4)를 포함하여 버스바(6) 및 체결볼트(7)가 내부에 충분히 수용되는 수용공간(12a)이 형성되도록 그 길이를 설정한다.As shown in Figs. 4 and 5, the four side plates 12 include the bus bar 6 and the fastening bolt 7, including the two terminal terminals 4, a accommodating space 12a that is sufficiently accommodated therein. Set its length so that it is formed.
다시 도 6을 참조하면, 덮개판(13)은 상기 4개의 측판(12)에 각각 연이어 4개가 형성되고, 측판(12)에 의해 형성되는 수용공간(12a)의 상부를 덮기 위한 것이다. 측판(12)과 덮개판(13)의 연결부분에는 제2 절곡라인(22)이 형성되어 측판(12)으로부터 덮개판(13)을 구부려 측판(12)에 대하여 직각방향으로 절곡하는 것이 용이하도록 되어 있으며, 제2 절곡라인(22)도 제1 절곡라인(21)과 마찬가지로 측판(12)과 덮개판(13) 사이에 홈부(24)를 형성하여 두께를 얇게 함으로써 구성할 수 있다.Referring back to FIG. 6 , four cover plates 13 are formed in succession on each of the four side plates 12 , and are intended to cover the upper portion of the accommodation space 12a formed by the side plates 12 . A second bending line 22 is formed in the connection portion between the side plate 12 and the cover plate 13 so that it is easy to bend the cover plate 13 from the side plate 12 in a direction perpendicular to the side plate 12. Like the first bending line 21, the second bending line 22 can be configured by forming a groove 24 between the side plate 12 and the cover plate 13 to reduce the thickness.
덮개판(13)의 길이는 마주하는 양쪽의 덮개판(13)으로 수용공간(12a)의 상부를 충분히 덮을 수 있도록 설정한다.The length of the cover plate 13 is set to sufficiently cover the upper portion of the accommodation space 12a with the cover plates 13 on both sides of the cover plate 13 facing each other.
한편, 본 발명은 상기 4개의 덮개판(13)이 수용공간(12a)의 상부를 덮은 상태가 유지되도록 결합하거나 수용공간(12a)의 상부를 개방하도록 결합해제하는 것이 가능한 결합수단을 포함한다.On the other hand, the present invention includes a coupling means capable of coupling the four cover plates 13 so as to maintain the state covering the upper portion of the receiving space 12a or releasing the coupling so as to open the upper portion of the receiving space 12a.
결합수단은, 4개의 덮개판(13)중, 마주하는 어느 양쪽 덮개판(13)의 끝단부에 구비되는 제1 및 제2 결합편(14a,14b)으로 이루어지는 것으로, 폭이 좁고 길이가 긴쪽, 즉 도 6에서 좌우에 위치하는 양쪽 덮개판(13)에 형성하는 것이 바람직하다.The coupling means is composed of the first and second coupling pieces 14a and 14b provided at the ends of any of the cover plates 13 facing each other among the four cover plates 13, the narrow width and the long side. That is, it is preferable to form both cover plates 13 located on the left and right in FIG. 6 .
제1 및 제2 결합편(14a,14b)은 양쪽 덮개판(13)으로 수용공간(12a)의 상부를 덮는 방향에 대하여 직각방향으로 절결부(15)를 형성함으로써 구성할 수 있다. 절결부(15)는 한쪽끝단으로부터 1/2지점까지 형성하고, 상호 끼울 수 있도록 도면에서 좌측의 절결부(15)는 아래족끝단에서부터 형성하고, 우측의 절결부(15)는 위에서부터 형성한다.The first and second coupling pieces 14a and 14b may be configured by forming the cutout portions 15 in a direction perpendicular to the direction in which the upper portion of the accommodation space 12a is covered with both cover plates 13 . The cut-out 15 is formed from one end to the 1/2 point, and the cut-out 15 on the left side in the drawing is formed from the lower foot end so that they can be inserted into each other, and the cut-out portion 15 on the right side is formed from the top. .
이로써 상기 절결부(15)에 의해 형성되는 제1 및 제2 결합편(14a,14b)은 서로 엇갈리게 반대방향으로 형성되어 상호 결합시 상대측 덮개판(13)의 상면에 위치되어 겹침으로써 결합된 상태를 유지할 수 있고, 또한 쉽게 결합해제할 수 있도록 구성된다.Accordingly, the first and second coupling pieces 14a and 14b formed by the cut-out portion 15 are alternately formed in opposite directions to each other, and are positioned on the upper surface of the opposite side cover plate 13 when they are coupled to each other and are coupled by overlapping. It is configured to be able to hold and also to be easily disengaged.
이와 같이 바닥판(11), 측판(12), 덮개판(13)으로 이루어지는 절연커버(10)는, 절연성을 가지고 얇은 합성수지재인 판상부재를 프레스 타발기계로 타발하여 도 6의 (a)와 같이 펼쳐진 전개형상을 형성하고, 이와 동시에 바닥판(11), 측판(12), 덮개판(13)의 각 연결부분을 가압성형하여 홈부(24)가 형성되도록 함으로써 측판(12) 및 덮개판(13)을 접기 쉽게 하는 제1 및 제2 절곡라인(21,22)을 형성함으로써 쉽게 제조할 수 있다.As described above, the insulating cover 10 comprising the bottom plate 11, the side plate 12, and the cover plate 13 is formed by punching a plate-like member made of a thin synthetic resin material with insulation with a press punching machine, as shown in FIG. 6(a). The side plate 12 and the cover plate 13 are formed by forming the unfolded shape, and at the same time, the connecting portions of the bottom plate 11, the side plate 12, and the cover plate 13 are press-molded to form the groove part 24. ) can be easily manufactured by forming the first and second bending lines 21 and 22 for easy folding.
또한 본 발명의 절연커버(10)는, 수용공간(12a)의 바닥면적을 이루는 바닥판(11)의 크기를 터미널단자(4) 전체가 내부에 수용되도록 설정할 경우, 터미널단자(4)의 형상에 따라서는 절연커버(10)의 전체 부피가 커져 배터리모듈(2)의 협소한 공간에 설치하는데 어려움이 따를 수 있다. In addition, in the insulating cover 10 of the present invention, when the size of the bottom plate 11 constituting the bottom area of the accommodating space 12a is set so that the entire terminal terminal 4 is accommodated therein, the shape of the terminal terminal 4 is In some cases, the overall volume of the insulating cover 10 increases, so that it may be difficult to install in a narrow space of the battery module 2 .
따라서, 터미널단자(4)의 일부분(4a)은 수용공간(12a) 외부로 노출시킨 후 별도로 커버함으로써 절연커버(10)의 전체 부피를 최대한 줄일 필요가 있다.Therefore, it is necessary to reduce the overall volume of the insulating cover 10 as much as possible by separately covering the portion 4a of the terminal terminal 4 after exposing it to the outside of the receiving space 12a.
이를 위해 상기 4개의 측판(12)중 하나에는 터미널단자(4)의 일부분(4a)이 관통하여 수용공간(12a) 밖으로 노출되도록 하는 측방향관통구멍(31)을 형성하고, 상기 측방향관통구멍(31)이 형성된 측판(12)에는 수용공간(12a) 밖으로 노출된 터미널단자(4)의 일부분(4a)을 덮는 보조덮개판(32)을 형성할 수 있다.To this end, a lateral through-hole 31 is formed in one of the four side plates 12 through which a portion 4a of the terminal terminal 4 penetrates and is exposed outside the receiving space 12a, and the lateral through-hole is formed. An auxiliary cover plate 32 covering a portion 4a of the terminal terminal 4 exposed outside the accommodation space 12a may be formed on the side plate 12 on which the 31 is formed.
보조덮개판(32)은 도 6의 (a)에서와 같이 바닥판(11), 측판(12), 덮개판(13)을 전개형상으로 형성할 때 측판(12)에 연이어 형성할 수 있고, 측판(12)과 연결되는 부분에 접는 것을 용이하게 하는 제3 절곡라인(23)을 형성함으로써 구성할 수 있다.The auxiliary cover plate 32 may be formed consecutively on the side plate 12 when the bottom plate 11, the side plate 12, and the cover plate 13 are formed in a deployed shape as in FIG. 6(a), It can be configured by forming a third bending line 23 that facilitates folding in a portion connected to the side plate 12 .
또한 측방향관통구멍(31)은 바닥판(11)의 제1 절곡라인(21)으로부터 측판(12)쪽으로 소정길이 이격시켜 제3 절곡라인(23)의 위치를 설정함으로써 도 6의 (b)에서와 같이 제3 절곡라인(23)을 접는 것에 의해 측판(12)에 측방향관통구멍(31)을 형성할 수 있다.In addition, the lateral through-hole 31 is spaced a predetermined length from the first bending line 21 of the bottom plate 11 toward the side plate 12 to set the position of the third bending line 23 in Fig. 6 (b). The lateral through-hole 31 may be formed in the side plate 12 by folding the third bent line 23 as in FIG.
이러한 구성으로 이루어진 본 발명의 절연커버(10)에 대한 작용을 설명하면 다음과 같다. 도 6의 (a)에서와 같이 바닥판(11), 측판(12), 덮개판(13) 및 보조덮개판(32)이 전개형상으로 된 상태에서, 먼저 바닥판(11)과 측판(12)의 연결부위인 4개의 제1 절곡라인(21)을 접어 측판(12)을 바닥판(11)에 대하여 직각으로 세우고, 보조덮개판(32)의 제3 절곡라인(23)을 접어 보조덮개판(32)을 바깥쪽 직각방향으로 세우면, 도 6의 (b)에 도시된 바와 같이 상부가 개방된 수용공간(12a)과 측방향관통구멍(31)이 형성된 박스형태의 절연커버(10)가 형성된다.The operation of the insulating cover 10 of the present invention having such a configuration will be described as follows. In a state in which the bottom plate 11, the side plate 12, the cover plate 13, and the auxiliary cover plate 32 are in the unfolded shape as in (a) of FIG. 6, first the bottom plate 11 and the side plate 12 ), fold the four first bending lines 21, which are the connecting portions, to set the side plate 12 at a right angle to the bottom plate 11, and fold the third bending line 23 of the auxiliary cover plate 32 to fold the auxiliary cover. When the plate 32 is erected at a right angle to the outside, as shown in (b) of FIG. 6 , a box-shaped insulating cover 10 having an upper open receiving space 12a and a lateral through hole 31 formed therein. is formed
이상태에서 바닥판(11)에 형성된 2개의 관통구멍(11a)을 이용하여 도 2 및 도 4에서와 같이 양쪽 터미널단자(4)에 통과시켜 양쪽 걸이부(11b)를 양쪽 터미널단자(4)의 저면에 걸림유지시킴으로써 도 5에서와 같이 상부가 개방된 수용공간(12a) 내에 양쪽 터미널단자(4)를 수용함과 동시에, 양쪽 터미널단자(4)의 일부분(4a)이 측방향관통구멍(31)을 통해 수용공간(12a) 외부로 노출되어 보조덮개판(32)에 의해 커버된 상태로 절연커버(10)를 배터리모듈(2)에 설치할 수 있다.In this state, using the two through-holes 11a formed in the bottom plate 11, pass through both terminal terminals 4 as in FIGS. As shown in FIG. 5, both terminal terminals 4 are accommodated in the accommodating space 12a with an open upper part by keeping it hooked on the bottom surface, and at the same time, a part 4a of both terminal terminals 4 is formed through the lateral through-hole 31 ) through the accommodating space 12a, the insulating cover 10 can be installed on the battery module 2 in a state of being exposed to the outside and covered by the auxiliary cover plate 32 .
이어서, 수용공간(12a)의 개방된 상부를 통해 버스바(6)와 체결볼트(7)로 양쪽 터미널단자(4)를 연결한 후, 도 3 및 도 4에서와 같이 덮개판(13)의 제2 절곡라인(22)을 접어 수용공간(12a)의 상부를 덮음으로써 양쪽 터미널단자(4)를 포함하는 버스바(6)와 체결볼트(7)를 커버할 수 있다.Next, after connecting both terminal terminals 4 with the bus bar 6 and the fastening bolt 7 through the open upper part of the receiving space 12a, the cover plate 13 is By folding the second bending line 22 to cover the upper portion of the accommodation space 12a, the bus bar 6 including both terminal terminals 4 and the fastening bolt 7 can be covered.
이어서, 마주하는 덮개판(13)에 구비된 제1 및 제2 결합편(14a,14b)의 절결부(15)를 서로 끼우게 되면, 한쪽 덮개판(13)의 제1 결합편(14a)은 마주하는 다른쪽 덮개판(13)의 상면에 중첩되고, 다른쪽 덮개판(13)의 제2 결합편(14b)은 마주하는 한쪽의 덮개판(13)의 상면에 중첩되므로, 덮개판(13)이 수용공간(12a)을 덮은 상태를 유지하여 터미널단자(4)의 연결부분을 절연 및 보호할 수 있게 된다.Next, when the cutouts 15 of the first and second coupling pieces 14a and 14b provided on the facing cover plate 13 are sandwiched between each other, the first coupling piece 14a of one cover plate 13 is is overlapped on the upper surface of the opposite cover plate 13, and the second coupling piece 14b of the other cover plate 13 overlaps the upper surface of the opposite cover plate 13, so the cover plate ( 13) keeps the receiving space 12a covered, so that the connection part of the terminal terminal 4 can be insulated and protected.
또한, 본 발명은 덮개판(13)의 제1 및 제2 결합편(14a,14b)을 결합해제하는 것에 의해 간단하게 수용공간(12a)의 상부를 개방할 수 있어 편리하게 터미널단자(4)의 연결부분을 노출시켜 점검이나 수리를 한 후, 다시 제1 및 제2 결합편(14a,14b)을 결합하여 터미널단자(4)의 연결부분을 커버할 수 있고, 이러한 작업이 절연커버(10)의 바닥판(11)에 형성된 걸이부(11b)가 터미널단자(4)의 저면에 걸림유지되어 분리되지 않은 상태에서 이루어지므로, 실수로 절연커버(10)를 분실하여 찾는 번거로움이나 새로운 절연커버(10)를 사용해서 커버해야하는 경제적 손실을 방지할 수 있다.In addition, the present invention can simply open the upper portion of the receiving space (12a) by disconnecting the first and second coupling pieces (14a, 14b) of the cover plate (13), so that the terminal terminal (4) After inspection or repair by exposing the connection part of ), since the hook portion 11b formed on the bottom plate 11 is caught on the bottom of the terminal terminal 4 and is not separated, it is a hassle to find the insulation cover 10 by mistake or to find a new insulation. It is possible to prevent the economic loss that must be covered by using the cover 10 .
지금까지 설명된 실시예는 본 발명의 바람직한 실시예를 설명한 것에 불과하고, 본 발명의 권리범위는 설명된 실시예에 한정되는 것은 아니며, 본 발명의 기술적 사상과 청구범위 내에서 이 분야의 당업자에 의하여 다양한 변경, 변형 또는 치환이 가능할 것이며, 그와 같은 실시예들은 본 발명의 범위에 속하는 것으로 이해되어야 한다.The embodiments described so far are merely illustrative of preferred embodiments of the present invention, and the scope of the present invention is not limited to the described embodiments, and within the spirit and claims of the present invention, those skilled in the art can Various changes, modifications or substitutions will be possible by this, and it should be understood that such embodiments fall within the scope of the present invention.
***부호의 설명******Description of Symbols***
2 : 배터리모듈 4 : 터미널단자2: battery module 4: terminal terminal
4a : 일부분 10 : 절연커버4a: part 10: insulating cover
11 : 바닥판 11a : 관통구멍11: bottom plate 11a: through hole
11b : 걸이부 12 : 측판11b: hook 12: side plate
12a : 수용공간 13 : 덮개판12a: accommodation space 13: cover plate
14a,14b : 제1 및 제2 결합편 15 : 절결부14a, 14b: first and second coupling pieces 15: cutout
21,22,23 : 제1 내지 제3 절곡라인 31 : 측방향관통구멍21, 22, 23: first to third bending lines 31: lateral through-holes
32 : 보조덮개판 32: auxiliary cover plate
본 발명에 따른 배터리모듈의 터미널단자 절연커버는 얇은 판상부재를 전개형상으로 절단하여 성형한 후, 소정부위를 접어 박스형태를 이루는 방식으로 구성함으로써 절연커버의 제작비용을 대폭 절감할수 있고, 절연커버를 완전히 결합해제하지 않고도 절연커버의 일부분을 개폐하는 간단한 조작에 의해 터미널단자를 노출시키거나 커버할 수 있어, 사용이 매우 편리한 배터리모듈의 터미널단자 절연커버 분야에 적용될 수 있다.The terminal terminal insulation cover of the battery module according to the present invention can greatly reduce the manufacturing cost of the insulation cover by cutting and forming a thin plate-like member in a developed shape, and then folding a predetermined portion to form a box shape. Terminal terminals can be exposed or covered by a simple operation of opening and closing a part of the insulation cover without completely disassembling the battery module.

Claims (3)

  1. 배터리모듈의 터미널단자가 통과하는 관통구멍을 형성하고, 상기 터미널단자의 저면에 걸림유지되는 걸이부를 형성한 사각형상의 바닥판;a rectangular bottom plate having a through hole through which the terminal terminal of the battery module passes, and forming a hook portion to be caught on the bottom surface of the terminal terminal;
    상기 바닥판의 4변으로부터 각각 연이어 형성되고 터미널단자를 포함하는 연결부분을 내부에 수용할 수 있는 수용공간을 형성하기 위한 4개의 측판; four side plates each successively formed from the four sides of the bottom plate to form an accommodating space capable of accommodating a connection part including a terminal terminal therein;
    상기 4개의 측판에 각각 연이어 형성되어 측판에 의해 형성되는 수용공간의 상부를 덮는 4개의 덮개판; 및four cover plates formed in succession on each of the four side plates to cover the upper portion of the accommodation space formed by the side plates; and
    상기 4개의 덮개판이 수용공간의 상부를 덮은 상태가 유지되도록 결합하거나 수용공간의 상부를 개방하도록 결합해제하는 것이 가능한 결합수단을 포함하여 이루어지고,and a coupling means capable of coupling the four cover plates to maintain a state covering the upper part of the accommodating space or releasing the coupling to open the upper part of the accommodating space,
    상기 바닥판, 측판, 덮개판은 합성수지재의 판상부재를 전개형상으로 타발하여 형성하고, 바닥판, 측판, 덮개판의 각 연결부분에는 접는 것을 용이하게 하는 제1 및 제2 절곡라인을 형성한 것을 특징으로 하는 배터리모듈의 터미널단자 절연커버.The bottom plate, the side plate, and the cover plate are formed by punching a plate-like member made of synthetic resin in an unfolded shape, and first and second bending lines that facilitate folding are formed in each connection portion of the bottom plate, side plate, and cover plate. Terminal terminal insulation cover of the battery module, characterized in that.
  2. 제 1 항에 있어서, 상기 결합수단은,According to claim 1, wherein the coupling means,
    상기 4개의 덮개판중, 마주하는 어느 양쪽 덮개판의 끝단부에 구비되는 제1 및 제2 결합편으로 이루어지고, 상기 제1 및 제2 결합편은 덮개판의 한쪽끝단으로부터 1/2지점까지 형성되는 절결부에 의해 형성되며, 상기 제1 및 제2 결합편은 서로 엇갈리게 반대방향으로 형성되어 상호 결합시 상대측 덮개판의 상면에 위치되어 겹치도록 된 것을 특징으로 하는 배터리모듈의 터미널단자 절연커버.Among the four cover plates, it consists of first and second coupling pieces provided at the ends of both cover plates facing each other, and the first and second coupling pieces extend from one end of the cover plate to the 1/2 point. The terminal terminal insulation cover of the battery module, characterized in that it is formed by the formed cutouts, and the first and second coupling pieces are alternately formed in opposite directions and are positioned on the upper surface of the opposite side cover plate to overlap each other when coupled to each other. .
  3. 제 1 항에 있어서, 상기 4개의 측판중 하나에는 터미널단자의 일부분이 관통하여 수용공간 밖으로 노출되는 측방향관통구멍을 형성하고, 상기 측방향관통구멍이 형성된 측판에는 수용공간 밖으로 노출된 터미널단자의 일부분을 덮는 보조덮개판을 구비하며,According to claim 1, wherein one of the four side plates to form a lateral through-hole through which a portion of the terminal terminal is exposed to the outside of the receiving space, the side plate having the lateral through-hole is formed of the terminal terminal exposed out of the receiving space. and an auxiliary cover plate covering a part,
    상기 보조덮개판은 바닥판, 측판, 덮개판을 전개형상으로 형성할 때 측판에 연이어 형성하고, 측판과의 연결부분에는 접는 것을 용이하게 하는 제3 절곡라인을 형성하며,The auxiliary cover plate is formed in succession to the side plate when the bottom plate, the side plate, and the cover plate are formed in the unfolded shape, and forms a third bending line that facilitates folding in the connection part with the side plate,
    상기 측방향관통구멍은 바닥판의 제1 절곡라인으로부터 측판쪽으로 소정길이 이격시켜 제3 절곡라인의 위치를 설정함으로써 형성되는 것을 특징으로 하는 배터리모듈의 터미널단자 절연커버.The lateral through-hole is formed by setting the position of the third bending line by spaced apart from the first bending line of the bottom plate by a predetermined length toward the side plate.
PCT/KR2020/006264 2020-05-06 2020-05-13 Insulating cover for terminal of battery module WO2021225199A1 (en)

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KR1020200053870A KR102366958B1 (en) 2020-05-06 2020-05-06 Insulation Cover of Battery Module Terminal

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KR20230097415A (en) 2021-12-24 2023-07-03 에이치그린파워 주식회사 Terminal Cover Housing Integrated Type Battery Module
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