WO2018088577A1 - Gasket for lithium ion battery pack - Google Patents

Gasket for lithium ion battery pack Download PDF

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Publication number
WO2018088577A1
WO2018088577A1 PCT/KR2016/012785 KR2016012785W WO2018088577A1 WO 2018088577 A1 WO2018088577 A1 WO 2018088577A1 KR 2016012785 W KR2016012785 W KR 2016012785W WO 2018088577 A1 WO2018088577 A1 WO 2018088577A1
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WO
WIPO (PCT)
Prior art keywords
gasket
bolt
split
battery pack
coupling portion
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Application number
PCT/KR2016/012785
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French (fr)
Korean (ko)
Inventor
김태준
김해겸
김택길
Original Assignee
울브린코리아(주)
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Application filed by 울브린코리아(주) filed Critical 울브린코리아(주)
Priority to PCT/KR2016/012785 priority Critical patent/WO2018088577A1/en
Publication of WO2018088577A1 publication Critical patent/WO2018088577A1/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
    • H01M50/20—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
    • 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 gasket for sealing a lithium ion battery pack.
  • O-rings are applied for airtightness in battery packs that store and cool a large number of batteries, but they are not easy to assemble and require expensive processing costs for assembly.
  • the method of inserting the O-ring on the battery pack assembly surface has a problem that the workability is lowered and the processing cost for assembly is increased.
  • FIG. 1 shows an exploded view of a lithium ion battery pack in which a gasket is installed between the coupling parts.
  • An integrated gasket 3 is installed between the coupling portions 9a and 9b of each of the first and second housings 5 and 8.
  • the integrated gasket 3 is installed between the coupling parts 9a and 9b such that the fastening holes 3a are arranged in parallel with the coupling holes 9a-1 and 9b-1, and fastened by bolts.
  • the integrated gasket 3 Since the integrated gasket 3 has a hollow shape and is thinly disposed only between the coupling portions 9a and 9b, after the shearing operation of manufacturing the integrated gasket 3, the material inside the integrated gasket 3 is removed. It needs to be reused to minimize scrap losses and increase productivity.
  • One object of the present invention is to provide a gasket for a lithium ion battery pack that minimizes scrap loss while using a rubber-coated metal material as a sealing member.
  • a gasket for a lithium ion battery pack of the present invention is installed between the coupling portion of the lithium ion battery pack for fastening the coupling portion of each of the first and second housings by a plurality of bolt coupling.
  • the gasket includes a plurality of split gaskets that are divided and installed between at least some of the plurality of bolts, and screwing portions at both ends of each of the split gaskets are provided with fastening holes for installing the bolts.
  • the screw coupling parts adjacent to each other are disposed such that the fastening holes overlap each other so as to be coupled by the bolts, and the screw couplings near the fastening holes overlapped with each other due to the pressure of the head of the bolt in the fastened state of the bolts.
  • the overlapping portion of the screwed portion is such that the head portion of the bolt It is disposed inward of the outer diameter.
  • the screw coupling portion is formed to be inclined toward the end of the screw coupling portion.
  • An air gap is formed between the end of the screw coupling portion, one side of the other split gasket adjacent to the end of the screw coupling portion, and the coupling portion adjacent to the screw coupling portion, and the air gap has the bolt connected to the coupling portion. It can be sealed in the fastened state.
  • the end of the screw engaging portion comprises an arc portion of a predetermined diameter, the diameter of the arc portion of the screw engaging portion is made smaller than the diameter of the bolt head.
  • the split gasket includes: a foam rubber forming an upper surface and a lower surface; And steel disposed between the upper and lower surfaces, wherein the screw coupling portions of the divided gaskets adjacent to each other overlap each other, and the foam rubbers overlapping each other have a thickness greater than that of the foam rubbers not overlapping each other.
  • the gasket of the present invention is composed of split gaskets joined by bolts, thereby reducing scrap loss during manufacture, thereby improving productivity.
  • the screw coupling portions of the divided gaskets overlapped with each other are disposed inward of the head of the bolt, so that the screw coupling portions overlapping each other are in close contact with each other between the coupling portions to seal inside the first and second housings.
  • FIG. 1 is an exploded perspective view of a lithium ion battery pack in which a conventional gasket is installed.
  • Figure 2 is an exploded perspective view of a lithium ion battery pack is installed gasket of the present invention.
  • FIG. 3 is a conceptual diagram showing a four-piece split gasket.
  • FIG. 4 is a conceptual diagram illustrating a gasket in which a gasket is divided between all bolts of the coupling part.
  • FIG. 5 is a cross-sectional view showing a state in which a bolt is mounted before the gasket of AA 'cross section is pressed
  • FIG. 6 is a cross-sectional view showing a state in which the gasket is pressed by fastening the bolt of AA' cross section of FIG. to be.
  • the lithium ion battery pack is combined with the first and second housings 5 and 8.
  • the lithium ion battery pack has a battery installation space for accommodating the battery therein by combining the first and second housings 5 and 8.
  • the first and second housings 5, 8 each have an engaging portion 9 in contact with each other at the edges.
  • the coupling part 9 includes first and second coupling parts 9a and 9b.
  • the first coupling part 9a is provided at the edge of the first housing 5, and the second coupling part 9b is provided. It is provided at the edge of the second housing (8).
  • a gasket 100 is installed between the first and second coupling parts 9a and 9b, and the coupling part 9 is fastened by a plurality of bolts 4 to secure the first and second housings 5 and 8. To combine.
  • the gasket 100 of the present invention is installed between the first and second coupling parts 9a and 9b to seal between the first and second coupling parts 9a and 9b.
  • the gasket 100 of the present invention may be made of a material of rubber coated material (RCM).
  • RCM rubber coated material
  • the gasket 100 of the RCM material may be formed of steel 10b-5 disposed between the foam rubber 10a-4 and the foam rubber 10a-4 forming upper and lower surfaces.
  • the gasket 100 includes a plurality of split gaskets 10a, 10b, 10c, and 10d, and fastening holes 10a-1 are formed at both ends of each of the split gaskets 10a, and the adjacent gaskets 10a,
  • the fastening holes 10a-1 and 10b-1 of 10b are disposed to overlap each other, and the bolts 4 fastening the coupling part 9 are overlapping fastening holes 10a-of the split gaskets 10a and 10b adjacent to each other. 1, 10b-1).
  • FIG. 3 an example in which the gasket 100 is divided into four is illustrated.
  • the split gaskets 10a, 10b, 10c, and 10d may be partially manufactured from the RCM material. In this case, the amount of the RCM material discarded can be minimized, which reduces production costs and improves productivity.
  • Both ends of the split gasket may be provided with a screw coupling portion (10a-2) is formed a fastening hole (10a-1) is coupled to the screw.
  • Split gaskets 10a and 10b adjacent to each other between the first and second coupling portions 9a and 9b are arranged such that at least a portion of the screw coupling portions 10a-2 and 10b-2 overlap each other.
  • the fastening holes 10a-1 and 10b-1 of the split gaskets 10a and 10b overlapping each other with the coupling holes 9a-1 and 9b-1 of the first and second coupling portions 9a and 9b are provided. They are arranged side by side and are joined by bolts 4.
  • the overlapping portions of the screw coupling portions 10a-2 and 10b-2 of the split gaskets 10a and 10b overlapped with each other are disposed inward of the outer diameter of the head portion 4a of the bolt 4, respectively.
  • the screw coupling portion (10a-2, 10b-2) may be made to be inclined toward the ends (10a-3, 10b-3).
  • Such a structure is such that the ends 10a-3 and 10b-3 of the threaded portions 10a-2 and 10b-2 are arranged inside the outer diameter of the head 4a of the bolt 4 and are advantageous for sealing. .
  • the end (10a-3) of the screw coupling portion (10a-2) of the split gasket (10a) may comprise an arc of a predetermined diameter, in this case, the end ( The diameter of 10a-3 is made smaller than the diameter of the head 4a of the bolt 4.
  • a gasket 100 composed of four split gaskets 10a, 10b, 10c and 10d is shown.
  • the screw engaging portion 10a-2 is inclined toward the end 10a-3, and the screw engaging portion 10a-2 is provided.
  • the fastening hole (10a-3) is an example of being arranged concentrically with the fastening hole (10b-3) of the overlapping screw coupling portion (10b-2).
  • the circular arc diameter of the screw 10a-2 end 10a-3 is made smaller than the head 4a of the screw.
  • the first and second coupling parts 9a and 9b provided at the upper and lower portions of the adjacent gaskets 10a are not shown. This will be described in FIG. 5.
  • FIG. 4 shows an example of a gasket 200 consisting of split gaskets 20a, 20b, 20c divided between all bolts 4 installed in the coupling part 9.
  • a gasket 200 consisting of sixteen divided gaskets 20a is shown.
  • the screw engaging portion 20a-2 is inclined toward the end and the screw engaging portion 20a-2
  • the fastening holes 20b-1 and the fastening holes 20 b-1 of the screw coupling part 20 b-2 overlapped with each other are arranged concentrically with each other is illustrated.
  • the diameters of the arcs formed at the ends 20a-3 and 20b-3 of the screwing portions 20a-2 and 20b-2 are made smaller than the heads 4a of the screws.
  • FIG. 5 illustrates an example in which split gaskets overlapping each other are installed at the coupling part 9, and in FIG. 6, an example in which pressure is sealed by fastening by bolt coupling is illustrated.
  • the split gaskets 10a and 10b are disposed to be adjacent to each other and are installed between the coupling parts 9a and 9b so that the bolts 4 are coupled to the coupling parts 9a and 9b and the adjacent split gaskets 10a.
  • 10b) are mounted in the fastening holes 10a-1 and 10b-1, and ends 10a-3 and 10b-3 of the split gaskets 10a and 10b are respectively heads 4a of the bolts 4a. It is placed inside. That is, the right end 10a-3 of the upper split gasket 10a overlapped between the coupling portions 9a and 9b shown is disposed on the left side of the right end of the head 4a of the bolt 4. Further, the left end 10b-3 of the lower split gasket 10b shown on the cross section is disposed on the right side of the left end of the head 4a of the bolt 4.
  • the upper split gasket 10a is spaced apart from the lower engaging portion 9b, and the lower split gasket 10b is spaced apart from the upper engaging portion 9a.
  • the end portions 10a-3 and 10b-3 of the split gaskets 10a and 10b are connected to the head 4a of the bolt 4.
  • the upper and lower coupling portions 9a and 9b are sealed by being pressurized by the divided gaskets 10a and 10b adjacent to each other and the air gap 15 of the split gasket ends 10a-3 and 10b-3 being sealed to each other. do.
  • the split gaskets 10a and 10b are formed of foam rubbers 10a-4 and 10b-4 forming upper and lower surfaces, and steel disposed between upper and lower surfaces of the foam rubbers 10a-4 and 10b-4. 10a-5, 10b-5).
  • the screw coupling portions 10a-2 and 10b-2 of the split gaskets 10a and 10b adjacent to each other at the lower portion of the bolt head 4a are brought into contact with each other, and the foam rubbers 10a-4 are in contact with each other.
  • 10b-4 preferably has a thickness thicker than the non-contacting foam rubbers 10a-4 and 10b-4. As a result, the air gap 15 is more effectively sealed in the state where the screwing portions 10a-2 and 10b-2 adjacent to each other are compressed by the bolt head 4a.
  • FIG. 7 shows the results of the sealing test using a split gasket of various forms.
  • the bending shape and the bolt pattern of the lithium ion battery pack coupling part were kept the same as before, and the lithium ion battery pack employing the split gasket of the type shown in FIG. 7 was submerged in a tank of 1 m depth. It was kept for a minute.
  • the battery pack cover was 1t thick and the bolts were tested with the M6 specification.
  • the gasket split specification was carried out with the split specification including the circular shape of the gasket in the middle part between the bolts, and water leakage evaluation resulted in leakage at the split part.
  • the gasket split specification was performed with the split gasket including the polygonal shape in the middle part between the bolts, and water leakage evaluation occurred in the split part.
  • gasket for a lithium ion battery pack has been described above with reference to the accompanying drawings.
  • the gasket for the lithium ion battery pack is not limited to the configuration and method of the embodiments described above, but the embodiments may be configured by selectively combining all or some of the embodiments so that various modifications can be made.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Gasket Seals (AREA)

Abstract

The present invention provides a gasket for a lithium ion battery pack that is installed between coupling parts of a lithium ion battery pack that fastens each coupling part of a first and a second housing by means of a plurality of bolt-couplings so as to seal the same, wherein the gasket is composed of a plurality of divided gaskets that are divided and installed between at least a part of the plurality of bolts, fastening holes in which the bolts are installed are formed in screw-coupling parts of both end parts of each of the divided gaskets, the fastening holes are arranged to overlap with one another so that the adjacent screw-coupling parts can be coupled using the bolt, and the overlapped part of the screw-coupling part is arranged on an inner side relative to an outer diameter of a head part of the bolt when the bolt is fastened so that the respective screw-coupling parts around the overlapped fastening holes can be pressed due to the pressure of the head part of the bolt.

Description

리튬이온 배터리팩용 가스켓Gasket for Lithium-ion Battery Pack
본 발명은 리튬 이온 배터리팩을 실링하는 가스켓에 관한 것이다. The present invention relates to a gasket for sealing a lithium ion battery pack.
전기 자동차 기술의 발전에 따라 자동차용 연료를 대체한 배터리의 적용이 본격화되고 있다. 대량의 배터리를 보관하고 냉각시키는 배터리 팩에 기밀을 위해서 오링(O-ring)이 적용되고 있으나 조립성이 용이하지 않고 조립을 위한 고가의 가공비가 소요된다. With the development of electric vehicle technology, the application of batteries replacing fuel for automobiles is getting serious. O-rings are applied for airtightness in battery packs that store and cool a large number of batteries, but they are not easy to assemble and require expensive processing costs for assembly.
자동차 시트 바닥이나 트렁크에 위치하는 배터리 팩의 크기가 대형이므로, 배터리팩 조립면에 오링을 가공하여 끼워넣는 방식은 작업성이 저하되며 조립을 위한 가공비가 상승되는 문제가 있었다. Since the size of the battery pack is located on the bottom of the car seat or trunk is large, the method of inserting the O-ring on the battery pack assembly surface has a problem that the workability is lowered and the processing cost for assembly is increased.
한편, 강성이 취약한 배터리팩에 조립성이 용이하고 기밀이 가능한 R.C.M(Rubber Coated Metal) 재료 중에 고무가 발포된 폼(foam) 소재를 적용하는 경우, 조립성은 좋아지나 스틸 양면에 고무가 코팅된 판재를 성형하는 방식이므로, 프레스를 이용한 전단 가공으로 스크랩 손실(Scrap Loss)이 과다하게 발생되는 문제가 있었다. On the other hand, when rubber foam is applied in a rubber coated metal (RCM) material that is easy to assemble and airtight to a battery pack having a weak rigidity, the rubber sheet is coated on both sides of the steel, although the assembly is better. Since the molding method, there was a problem that excessive scrap loss (scrap loss) occurs by the shearing process using a press.
도 1에는 결합부 사이에 가스켓이 설치되는 리튬이온 배터리팩의 분해도가 보여진다. 제1 및 제2하우징(5, 8) 각각의 결합부(9a, 9b) 사이에는 일체형가스켓(3)이 설치된다. 일체형가스켓(3)은 체결홀(3a)이 결합홀(9a-1, 9b-1)과 나란하게 배치되도록 결합부(9a, 9b) 사이에 설치되어 볼트에 의해 체결된다. 1 shows an exploded view of a lithium ion battery pack in which a gasket is installed between the coupling parts. An integrated gasket 3 is installed between the coupling portions 9a and 9b of each of the first and second housings 5 and 8. The integrated gasket 3 is installed between the coupling parts 9a and 9b such that the fastening holes 3a are arranged in parallel with the coupling holes 9a-1 and 9b-1, and fastened by bolts.
일체형가스켓(3)은 가운데가 비어있는 형상으로 이루어져서, 결합부(9a, 9b) 사이에만 얇게 배치되므로, 일체형가스켓(3)을 제조하는 전단 가공 작업 이후에, 일체형가스켓(3) 내부의 재료를 다시 사용하여 스크랩 손실을 최소화하며, 생산성을 높일 필요가 있다. Since the integrated gasket 3 has a hollow shape and is thinly disposed only between the coupling portions 9a and 9b, after the shearing operation of manufacturing the integrated gasket 3, the material inside the integrated gasket 3 is removed. It needs to be reused to minimize scrap losses and increase productivity.
본 발명의 일 목적은 고무가 코팅된 금속 재료를 밀봉 부재로 사용하면서도 스크랩 손실을 최소화하는 리튬이온 배터리팩용 가스켓을 제공하는 것이다. One object of the present invention is to provide a gasket for a lithium ion battery pack that minimizes scrap loss while using a rubber-coated metal material as a sealing member.
상기의 과제를 해결하기 위해, 본 발명의 리튬이온 배터리팩용 가스켓은, 제1 및 제2하우징 각각의 결합부를 복수 개의 볼트 결합으로 체결하는 리튬이온 배터리팩의 상기 결합부 사이에 설치되어 실링하는 가스켓에 있어서, 상기 가스켓은 상기 복수 개의 볼트들 중 적어도 일부 사이에서 분할되어 설치되는 복수 개의 분할가스켓으로 이루어지고, 상기 분할가스켓 각각의 양 단부의 나사결합부에는 상기 볼트가 설치되는 체결홀이 형성되고, 서로 인접한 상기 나사결합부는 상기 볼트에 의해 결합되도록 상기 체결홀이 서로 겹쳐지도록 배치되며, 상기 볼트가 체결된 상태에서 상기 볼트의 머리부분에 의한 가압으로 인해 서로 겹쳐진 상기 체결홀 부근의 상기 나사결합부 각각이 가압되도록, 상기 나사결합부의 겹쳐진 부분은 상기 볼트의 머리부분의 외경보다 안쪽으로 배치된다.In order to solve the above problems, a gasket for a lithium ion battery pack of the present invention, the gasket is installed between the coupling portion of the lithium ion battery pack for fastening the coupling portion of each of the first and second housings by a plurality of bolt coupling. The gasket includes a plurality of split gaskets that are divided and installed between at least some of the plurality of bolts, and screwing portions at both ends of each of the split gaskets are provided with fastening holes for installing the bolts. The screw coupling parts adjacent to each other are disposed such that the fastening holes overlap each other so as to be coupled by the bolts, and the screw couplings near the fastening holes overlapped with each other due to the pressure of the head of the bolt in the fastened state of the bolts. The overlapping portion of the screwed portion is such that the head portion of the bolt It is disposed inward of the outer diameter.
본 발명과 관련된 일 예에 의하면, 상기 나사결합부는 상기 나사결합부의 단을 향해 경사지도록 이루어진다. According to an example related to the present invention, the screw coupling portion is formed to be inclined toward the end of the screw coupling portion.
상기 나사결합부의 단, 상기 나사결합부의 단에 인접한 다른 하나의 분할가스켓의 일면 및 상기 나사결합부의 단에 인접한 상기 결합부 사이에는 에어 갭이 형성되고, 상기 에어 갭은 상기 볼트가 상기 결합부에 체결된 상태에서 실링될 수 있다. An air gap is formed between the end of the screw coupling portion, one side of the other split gasket adjacent to the end of the screw coupling portion, and the coupling portion adjacent to the screw coupling portion, and the air gap has the bolt connected to the coupling portion. It can be sealed in the fastened state.
본 발명과 관련된 다른 일 예에 의하면, 상기 나사결합부의 단은 기결정된 직경의 원호 부분을 포함하여 이루어지고, 상기 나사결합부 단의 원호 부분의 직경은 상기 볼트 머리의 직경보다 작도록 이루어진다. According to another embodiment related to the present invention, the end of the screw engaging portion comprises an arc portion of a predetermined diameter, the diameter of the arc portion of the screw engaging portion is made smaller than the diameter of the bolt head.
본 발명과 관련된 또 다른 일 예에 의하면, 상기 분할가스켓은, 상면 및 하면을 형성하는 폼 러버; 및 상기 상면 및 하면 사이에 배치되는 스틸을 포함하고, 상기 서로 인접한 분할가스켓의 나사결합부는 서로 겹쳐져있고, 서로 겹쳐져있는 상기 폼 러버는 서로 겹쳐지지 않은 상기 폼 러버 보다 두꺼운 두께를 갖는다.According to another example related to the present invention, the split gasket includes: a foam rubber forming an upper surface and a lower surface; And steel disposed between the upper and lower surfaces, wherein the screw coupling portions of the divided gaskets adjacent to each other overlap each other, and the foam rubbers overlapping each other have a thickness greater than that of the foam rubbers not overlapping each other.
본 발명의 가스켓은 볼트에 의해 결합되는 분할가스켓으로 이루어져서 제조시에 스크랩 손실(Scrap Loss)이 줄어들어 생산성이 향상된다.The gasket of the present invention is composed of split gaskets joined by bolts, thereby reducing scrap loss during manufacture, thereby improving productivity.
또한, 본 발명의 가스켓은 서로 겹쳐진 분할가스켓의 나사결합부의 단이 볼트의 머리부분 보다 안쪽에 배치됨으로써 서로 겹쳐진 나사결합부는 결합부 사이에서 서로 밀착됨으로써 제1 및 제2하우징의 내부를 실링하게된다. In addition, in the gasket of the present invention, the screw coupling portions of the divided gaskets overlapped with each other are disposed inward of the head of the bolt, so that the screw coupling portions overlapping each other are in close contact with each other between the coupling portions to seal inside the first and second housings. .
도 1은 종래의 가스켓이 설치되는 리튬이온 배터리팩의 분해사시도.1 is an exploded perspective view of a lithium ion battery pack in which a conventional gasket is installed.
도 2는 본 발명의 가스켓이 설치되는 리튬이온 배터리팩의 분해사시도.Figure 2 is an exploded perspective view of a lithium ion battery pack is installed gasket of the present invention.
도 3는 4개로 이루어진 분할가스켓을 도시하는 개념도.3 is a conceptual diagram showing a four-piece split gasket.
도 4는 결합부의 모든 볼트 사이에서 가스켓이 분할된 가스켓을 도시하는 개념도.4 is a conceptual diagram illustrating a gasket in which a gasket is divided between all bolts of the coupling part.
[규칙 제91조에 의한 정정 19.12.2016]　
도 5는 도 3 A-A' 단면의 가스켓이 가압되기 전에 볼트가 거치되어 있는 일 상태를 도시하는 단면이고, 도 6는 도 3의 A-A' 단면의 볼트가 체결되어 가스켓이 가압된 상태를 도시하는 단면도이다.[Revision 19.12.2016 under Rule 91]
5 is a cross-sectional view showing a state in which a bolt is mounted before the gasket of AA 'cross section is pressed, and FIG. 6 is a cross-sectional view showing a state in which the gasket is pressed by fastening the bolt of AA' cross section of FIG. to be.
[규칙 제91조에 의한 정정 19.12.2016]　
도 7은 실링 테스트를 한 결과표이다.[Revision 19.12.2016 under Rule 91]
7 is a result table of the sealing test.
이하, 첨부된 도면을 참조하여 본 명세서에 개시된 실시 예를 상세히 설명하되, 동일하거나 유사한 구성요소에는 동일·유사한 도면 부호를 부여하고 이에 대한 중복되는 설명은 생략하기로 한다. 이하의 설명에서 사용되는 구성요소에 대한 접미사 "부"는 명세서 작성의 용이함만이 고려되어 부여되거나 혼용되는 것으로서, 그 자체로 서로 구별되는 의미 또는 역할을 갖는 것은 아니다. 또한, 본 명세서에 개시된 실시 예를 설명함에 있어서 관련된 공지 기술에 대한 구체적인 설명이 본 명세서에 개시된 실시 예의 요지를 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다. 또한, 첨부된 도면은 본 명세서에 개시된 실시 예를 쉽게 이해할 수 있도록 하기 위한 것일 뿐, 첨부된 도면에 의해 본 명세서에 개시된 기술적 사상이 제한되지 않으며, 본 발명의 사상 및 기술 범위에 포함되는 모든 변경, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다.Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, and the same or similar components will be given the same or similar reference numerals and redundant description thereof will be omitted. The suffix "part" for components used in the following description is given or mixed in consideration of ease of specification, and does not have meanings or roles that are distinguished from each other. In addition, in describing the embodiments disclosed herein, when it is determined that the detailed description of the related known technology may obscure the gist of the embodiments disclosed herein, the detailed description thereof will be omitted. In addition, the accompanying drawings are intended to facilitate understanding of the embodiments disclosed herein, but are not limited to the technical spirit disclosed herein by the accompanying drawings, all changes included in the spirit and scope of the present invention. It should be understood to include equivalents and substitutes.
도 2를 참조하면, 리튬 이온 배터리팩은 제1 및 제2하우징(5, 8)이 결합된다. 리튬 이온 배터리팩은 제1 및 제2하우징(5, 8)이 결합이 결합됨으로써 내부에 배터리를 수용할 수 있는 배터리 설치 공간을 구비한다. Referring to FIG. 2, the lithium ion battery pack is combined with the first and second housings 5 and 8. The lithium ion battery pack has a battery installation space for accommodating the battery therein by combining the first and second housings 5 and 8.
제1 및 제2하우징(5, 8)은 각각 가장자리에 서로 접촉하는 결합부(9)를 구비한다. 결합부(9)는 제1 및 제2결합부(9a, 9b)를 포함하는데, 제1결합부(9a)는 제1하우징(5)의 가장자리에 구비되고, 제2결합부(9b)는 제2하우징(8)의 가장자리에 구비된다. 제1 및 제2결합부(9a, 9b) 사이에는 가스켓(100)이 설치되고, 결합부(9)는 복수의 볼트(4)에 의해 체결되어 제1 및 제2하우징(5, 8)을 결합한다. The first and second housings 5, 8 each have an engaging portion 9 in contact with each other at the edges. The coupling part 9 includes first and second coupling parts 9a and 9b. The first coupling part 9a is provided at the edge of the first housing 5, and the second coupling part 9b is provided. It is provided at the edge of the second housing (8). A gasket 100 is installed between the first and second coupling parts 9a and 9b, and the coupling part 9 is fastened by a plurality of bolts 4 to secure the first and second housings 5 and 8. To combine.
본 발명의 가스켓(100)은 제1 및 제2결합부(9a, 9b) 사이에 설치되어 제1 및 제2결합부(9a, 9b) 사이를 실링한다. The gasket 100 of the present invention is installed between the first and second coupling parts 9a and 9b to seal between the first and second coupling parts 9a and 9b.
본 발명의 가스켓(100)은 RCM(Rubber Coated Material)의 재질로 이루어질 수 있다. 일 예로, RCM 재질의 가스켓(100)은 상하면을 형성하는 폼 러버(10a-4)와 폼 러버(10a-4) 사이에 배치되는 스틸(10b-5)로 이루어질 수 있다. The gasket 100 of the present invention may be made of a material of rubber coated material (RCM). For example, the gasket 100 of the RCM material may be formed of steel 10b-5 disposed between the foam rubber 10a-4 and the foam rubber 10a-4 forming upper and lower surfaces.
가스켓(100)은 복수 개의 분할가스켓(10a, 10b, 10c, 10d)으로 이루어지는데, 분할가스켓(10a) 각각의 양 단부에는 체결홀(10a-1)이 형성되고, 서로 인접한 분할가스켓(10a, 10b)의 체결홀(10a-1, 10b-1)이 서로 겹쳐지도록 배치되며, 결합부(9)를 체결하는 볼트(4)는 서로 인접한 분할가스켓(10a, 10b)의 겹쳐진 체결홀 (10a-1, 10b-1)에 설치된다. The gasket 100 includes a plurality of split gaskets 10a, 10b, 10c, and 10d, and fastening holes 10a-1 are formed at both ends of each of the split gaskets 10a, and the adjacent gaskets 10a, The fastening holes 10a-1 and 10b-1 of 10b are disposed to overlap each other, and the bolts 4 fastening the coupling part 9 are overlapping fastening holes 10a-of the split gaskets 10a and 10b adjacent to each other. 1, 10b-1).
도 3을 참조하면, 가스켓(100)은 4개로 분할되는 일 예가 도시된다. Referring to FIG. 3, an example in which the gasket 100 is divided into four is illustrated.
프레스 전단가공에 의해 종래의 일체형 가스켓이 가공되면, 가공된 일체형 가스켓 안쪽의 RCM 재료는 일체형 가스켓을 가공하는데 다시 사용되지 못하고 폐기되어야 했다. When conventional integral gaskets were processed by press shearing, the RCM material inside the processed integral gaskets had to be discarded and not used again to process the integral gaskets.
가스켓(100)이 4개로 분할된 분할가스켓(10a, 10b, 10c, 10d)으로 형성됨에 따라, 제조과정에서, RCM 재료에서 분할가스켓(10a, 10b, 10c, 10d)을 부분적으로 제조할 수 있어서, 폐기되는 RCM 재료의 양을 최소화할 수 있고, 이로 인해 생산 단가가 감소하여 생산성이 향상된다. As the gasket 100 is formed of four divided gaskets 10a, 10b, 10c, and 10d, during the manufacturing process, the split gaskets 10a, 10b, 10c, and 10d may be partially manufactured from the RCM material. In this case, the amount of the RCM material discarded can be minimized, which reduces production costs and improves productivity.
분할가스켓의 양 단부에는 나사가 결합되는 체결홀(10a-1)이 형성되는 나사결합부(10a-2)가 구비될 수 있다. 제1 및 제2결합부(9a, 9b) 사이에서 서로 인접한 분할가스켓(10a, 10b)은 나사결합부(10a-2, 10b-2)의 적어도 일부가 겹쳐지도록 배치된다. 특히, 제1 및 제2결합부(9a, 9b) 각각의 결합홀(9a-1, 9b-1)과 서로 겹쳐진 분할가스켓(10a, 10b)의 체결홀(10a-1, 10b-1)은 나란하게 배치되고 볼트(4)에 의해 결합된다. 서로 겹쳐진 분할가스켓(10a, 10b)의 나사결합부(10a-2, 10b-2)의 서로 겹쳐진 부분은 각각 볼트(4)의 머리부분(4a)의 외경보다 안쪽으로 배치된다. 또한, 나사결합부(10a-2, 10b-2)는 단(10a-3, 10b-3)을 향해 경사지도록 이루어질 수 있다. 이런 구조는, 나사결합부(10a-2, 10b-2)의 단(10a-3, 10b-3)이 볼트(4)의 머리부분(4a)의 외경보다 안에 배치되고 실링에 유리한 구조가 된다.Both ends of the split gasket may be provided with a screw coupling portion (10a-2) is formed a fastening hole (10a-1) is coupled to the screw. Split gaskets 10a and 10b adjacent to each other between the first and second coupling portions 9a and 9b are arranged such that at least a portion of the screw coupling portions 10a-2 and 10b-2 overlap each other. In particular, the fastening holes 10a-1 and 10b-1 of the split gaskets 10a and 10b overlapping each other with the coupling holes 9a-1 and 9b-1 of the first and second coupling portions 9a and 9b are provided. They are arranged side by side and are joined by bolts 4. The overlapping portions of the screw coupling portions 10a-2 and 10b-2 of the split gaskets 10a and 10b overlapped with each other are disposed inward of the outer diameter of the head portion 4a of the bolt 4, respectively. In addition, the screw coupling portion (10a-2, 10b-2) may be made to be inclined toward the ends (10a-3, 10b-3). Such a structure is such that the ends 10a-3 and 10b-3 of the threaded portions 10a-2 and 10b-2 are arranged inside the outer diameter of the head 4a of the bolt 4 and are advantageous for sealing. .
한편, 분할가스켓(10a)의 나사결합부(10a-2)의 단(10a-3)은 기결정된 직경의 원호를 포함하여 이루어질 수 있는데, 이 경우, 나사결합부(10a-2)의 단(10a-3)의 직경은 볼트(4)의 머리부분(4a)의 직경보다 작도록 이루어진다. On the other hand, the end (10a-3) of the screw coupling portion (10a-2) of the split gasket (10a) may comprise an arc of a predetermined diameter, in this case, the end ( The diameter of 10a-3 is made smaller than the diameter of the head 4a of the bolt 4.
도 3을 참조하면, 4개의 분할가스켓(10a, 10b, 10c, 10d)으로 이루어진 가스켓(100)이 도시된다. 서로 겹쳐진 분할가스켓(10a)의 나사결합부(10a-2)가 확대된 부분에는, 나사결합부(10a-2)는 단(10a-3)을 향해 경사지고, 나사결합부(10a-2)의 체결홀(10a-3)은 겹쳐진 나사결합부(10b-2)의 체결홀(10b-3)과 동심으로 배치되어 있는 일 예가 도시된다. 도 3에 도시되는 바와 같이, 나사결합부(10a-2) 단(10a-3)의 원호 직경은 나사의 머리부분(4a) 보다 작도록 이루어진다. 도 3에는 서로 인접한 분할가스켓(10a)의 상하부에 설치되는 제1 및 제2결합부(9a, 9b)는 도시되어 있지는 않다. 이에 대해서는 도 5에서 서술하기로 한다. Referring to FIG. 3, a gasket 100 composed of four split gaskets 10a, 10b, 10c and 10d is shown. In the enlarged portion of the screw engaging portion 10a-2 of the divided gaskets 10a overlapped with each other, the screw engaging portion 10a-2 is inclined toward the end 10a-3, and the screw engaging portion 10a-2 is provided. The fastening hole (10a-3) is an example of being arranged concentrically with the fastening hole (10b-3) of the overlapping screw coupling portion (10b-2). As shown in FIG. 3, the circular arc diameter of the screw 10a-2 end 10a-3 is made smaller than the head 4a of the screw. In FIG. 3, the first and second coupling parts 9a and 9b provided at the upper and lower portions of the adjacent gaskets 10a are not shown. This will be described in FIG. 5.
도 4에는 결합부(9)에 설치되는 모든 볼트(4) 사이에서 분할된 분할가스켓(20a, 20b, 20c)으로 이루어진 가스켓(200)의 일 예가 도시된다. 도 4를 참조하면, 16개의 분할가스켓(20a)으로 이루어진 가스켓(200)이 도시된다. 서로 겹쳐진 분할가스켓(20a, 20b)의 나사결합부(20a-2, 20b-2)가 확대된 부분에는, 나사결합부(20a-2)는 단부를 향해 경사지고, 나사결합부(20a-2)의 체결홀(20a-1)과 겹쳐진 나사결합부(20b-2)의 체결홀(20b-1)은 서로 동심으로 배치되어 있는 일 예가 도시된다. 도 4에 도시되는 바와 같이, 나사결합부(20a-2, 20b-2)의 단부(20a-3, 20b-3)에서 형성되는 원호의 직경은 나사의 머리부분(4a) 보다 작도록 이루어진다. 4 shows an example of a gasket 200 consisting of split gaskets 20a, 20b, 20c divided between all bolts 4 installed in the coupling part 9. Referring to FIG. 4, a gasket 200 consisting of sixteen divided gaskets 20a is shown. In the enlarged portion of the screw engaging portions 20a-2 and 20b-2 of the divided gaskets 20a and 20b overlapping each other, the screw engaging portion 20a-2 is inclined toward the end and the screw engaging portion 20a-2 An example in which the fastening holes 20b-1 and the fastening holes 20 b-1 of the screw coupling part 20 b-2 overlapped with each other are arranged concentrically with each other is illustrated. As shown in FIG. 4, the diameters of the arcs formed at the ends 20a-3 and 20b-3 of the screwing portions 20a-2 and 20b-2 are made smaller than the heads 4a of the screws.
도 5에는 결합부(9)에 서로 겹쳐진 분할가스켓이 설치되는 일 예, 도 6에는 볼트 결합에 의해 체결에 의해 가압되어 실링되는 예가 도시되어 있다.5 illustrates an example in which split gaskets overlapping each other are installed at the coupling part 9, and in FIG. 6, an example in which pressure is sealed by fastening by bolt coupling is illustrated.
도 5를 참조하면, 분할가스켓(10a, 10b)이 서로 인접하도록 배치되고, 결합부(9a, 9b) 사이에 설치되어, 볼트(4)가 결합부(9a, 9b) 및 인접 분할가스켓(10a, 10b)의 체결홀(10a-1, 10b-1)에 거치되어 있는데, 분할가스켓(10a, 10b) 각각의 단(10a-3, 10b-3)은 볼트(4)의 머리부분(4a) 안쪽에 배치된다. 즉, 도시된 결합부(9a, 9b) 사이에 겹쳐진 상측의 분할가스켓(10a)의 우측 단(10a-3)은 볼트(4)의 머리부분(4a)의 우측 단보다 좌측에 배치된다. 또한, 단면 상에서 도시된 하측의 분할가스켓(10b)의 좌측 단(10b-3)은 볼트(4)의 머리부분(4a)의 좌측 단보다 우측에 배치된다. Referring to FIG. 5, the split gaskets 10a and 10b are disposed to be adjacent to each other and are installed between the coupling parts 9a and 9b so that the bolts 4 are coupled to the coupling parts 9a and 9b and the adjacent split gaskets 10a. , 10b) are mounted in the fastening holes 10a-1 and 10b-1, and ends 10a-3 and 10b-3 of the split gaskets 10a and 10b are respectively heads 4a of the bolts 4a. It is placed inside. That is, the right end 10a-3 of the upper split gasket 10a overlapped between the coupling portions 9a and 9b shown is disposed on the left side of the right end of the head 4a of the bolt 4. Further, the left end 10b-3 of the lower split gasket 10b shown on the cross section is disposed on the right side of the left end of the head 4a of the bolt 4.
또한, 상측의 분할가스켓(10a)은 하측의 결합부(9b)에 이격되어 있고, 하측의 분할가스켓(10b)은 상측의 결합부(9a)에 이격되어 있는 상태이다. The upper split gasket 10a is spaced apart from the lower engaging portion 9b, and the lower split gasket 10b is spaced apart from the upper engaging portion 9a.
이러한 상태에서 볼트(4)가 상측 및 하측의 결합부(9a, 9b)를 가압하면, 도 6에서와 같이, 상측의 분할가스켓(10a) 및 하측의 분할가스켓(10b)은 볼트(4)의 머리부분(4a)에 의한 하방향 압축력에 의해 상측의 분할가스켓(10a)은 하측의 결합부(9b)에 밀착되고, 하측의 분할가스켓(10b)은 상측의 결합부(9a)에 밀착된다. 이와 동시에, 상측 분할가스켓(10a)의 단(10a-3), 상측의 결합부(9a) 및 하측 분할가스켓(10b)에 의해 에어갭(15)이 실링되고, 반대편은 하측 분할가스켓(10b)의 단(10b-3), 하측의 결합부(9b) 및 상측 분할가스켓(10a)에 의해 에어갭(15)이 실링된다.In this state, when the bolt 4 presses the upper and lower coupling portions 9a and 9b, as shown in FIG. 6, the upper split gasket 10a and the lower split gasket 10b of the bolt 4 The split gasket 10a on the upper side is in close contact with the coupling part 9b on the lower side by the downward compression force by the head portion 4a, and the split gasket 10b on the lower side is in close contact with the coupling part 9a on the upper side. At the same time, the air gap 15 is sealed by the stage 10a-3 of the upper split gasket 10a, the upper coupling part 9a and the lower split gasket 10b, and the opposite side is the lower split gasket 10b. The air gap 15 is sealed by the stage 10b-3, the lower coupling portion 9b and the upper split gasket 10a.
이와 같이, 복수 개의 분할가스켓(10a, 10b)으로 이루어진 가스켓(100)은, 분할가스켓(10a, 10b)의 단부(10a-3, 10b-3)가 볼트(4)의 머리부분(4a)에 의해 가압되어서 서로 인접한 분할가스켓(10a, 10b)이 서로 밀착되고 분할가스켓 단부(10a-3, 10b-3)의 에어갭(15)이 실링됨에 따라 상측 및 하측 결합부(9a, 9b)는 실링된다. As described above, in the gasket 100 including the plurality of split gaskets 10a and 10b, the end portions 10a-3 and 10b-3 of the split gaskets 10a and 10b are connected to the head 4a of the bolt 4. The upper and lower coupling portions 9a and 9b are sealed by being pressurized by the divided gaskets 10a and 10b adjacent to each other and the air gap 15 of the split gasket ends 10a-3 and 10b-3 being sealed to each other. do.
또한, 분할가스켓(10a, 10b)은 상면 및 하면을 형성하는 폼 러버(10a-4, 10b-4), 및 폼 러버(10a-4, 10b-4)의 상면과 하면 사이에 배치되는 스틸(10a-5, 10b-5)을 포함할 수 있다. 이 경우, 볼트 머리(4a) 아래 부분에서 서로 인접한 분할가스켓(10a, 10b)의 나사결합부(10a-2, 10b-2)는 서로 맞닿아 있게 되는데, 서로 맞닿아 있는 폼 러버(10a-4, 10b-4)는 맞닿아 있지 않는 폼 러버(10a-4, 10b-4) 보다 두꺼운 두께를 갖는 것이 바람직하다. 이로 인해, 볼트 머리(4a)에 의해 서로 인접한 단부의 나사결합부(10a-2, 10b-2)가 압축된 상태에서 에어 갭(15)을 보다 효과적으로 실링하게 된다.In addition, the split gaskets 10a and 10b are formed of foam rubbers 10a-4 and 10b-4 forming upper and lower surfaces, and steel disposed between upper and lower surfaces of the foam rubbers 10a-4 and 10b-4. 10a-5, 10b-5). In this case, the screw coupling portions 10a-2 and 10b-2 of the split gaskets 10a and 10b adjacent to each other at the lower portion of the bolt head 4a are brought into contact with each other, and the foam rubbers 10a-4 are in contact with each other. , 10b-4 preferably has a thickness thicker than the non-contacting foam rubbers 10a-4 and 10b-4. As a result, the air gap 15 is more effectively sealed in the state where the screwing portions 10a-2 and 10b-2 adjacent to each other are compressed by the bolt head 4a.
[규칙 제91조에 의한 정정 07.09.2017]　
한편, 도 7에는, 다양한 형태의 분할 가스켓이 사용되어 실링 테스트를 한 결과를 도시하고 있다. 가스켓의 실링 테스트를 위하여 리튬이온 배터리팩 결합부의 굴곡 형상 및 볼트 패턴은 기존과 동일하게 유지하였으며, 도 7에 보이는 형태의 분할가스켓이 채용된 리튬 이온 배터리팩을 1m의 깊이의 수조에서 가라앉히고 30분간 유지하여 진행되었다. 배터리팩 커버는 1t의 두께이고, 볼트는 M6 사양으로 실험이 수행되었다.[Revision under Rule 91 07.09.2017]
On the other hand, Fig. 7 shows the results of the sealing test using a split gasket of various forms. For the sealing test of the gasket, the bending shape and the bolt pattern of the lithium ion battery pack coupling part were kept the same as before, and the lithium ion battery pack employing the split gasket of the type shown in FIG. 7 was submerged in a tank of 1 m depth. It was kept for a minute. The battery pack cover was 1t thick and the bolts were tested with the M6 specification.
[규칙 제91조에 의한 정정 19.12.2016]　[삭제]
[Revision 19.12.2016 under Rule 91] [Deleted]
실험 1에서, 가스켓 분할 사양은 볼트 사이에의 중간 부분에서 가스켓이 원형의 형상을 포함하여 분할된 사양으로 수행되었고, 수몰평가결과 분할된 부분에서 누수가 발생하였다. 실험 2에서, 가스켓 분할 사양은 볼트 사이에의 중간 부분에서 가스켓이 다각형의 형상을 포함하여 분할된 사양으로 수행되었고, 수몰평가결과 분할된 부분에서 누수가 발생하였다. In Experiment 1, the gasket split specification was carried out with the split specification including the circular shape of the gasket in the middle part between the bolts, and water leakage evaluation resulted in leakage at the split part. In Experiment 2, the gasket split specification was performed with the split gasket including the polygonal shape in the middle part between the bolts, and water leakage evaluation occurred in the split part.
실험 3에서, 가스켓 분할 사양은 볼트의 아래쪽에서 가스켓의 단부가 볼트 머리 바깥쪽에서 겹쳐지도록 형성되게 분할된 사양으로 수행되었고, 수몰평가결과 겹쳐진 가스켓 부분에서 누수가 발생하였다. In Experiment 3, the gasket split specification was carried out with the split specification such that the end of the gasket overlapped the outside of the bolt head at the bottom of the bolt, and water leakage evaluation resulted in a leak in the overlapped gasket portion.
실험 4에서, 가스켓 분할 사양은 볼트의 아래쪽에서 가스켓의 단부가 볼트 머리 안쪽에서 배치되도록 형성되게 분할된 사양으로 수행되었고, 수몰평가결과 겹쳐진 가스켓 부분에서 누수가 발생하지 않고, 실링이 이루어져서 IPX7등급을 만족하였다.In Experiment 4, the gasket split specification was carried out with the split section formed so that the end of the gasket was arranged inside the bolt head at the bottom of the bolt. Satisfied.
[규칙 제91조에 의한 정정 19.12.2016]　
이러한 도 7의 실험 결과로부터 본 발명에 따른 가스켓은 분할 가스켓 타입이면서도 종래의 일체형 가스켓과 동일한 실링 효과를 발휘할 수 있다는 것을 알 수 있다.[Revision 19.12.2016 under Rule 91]
From the experimental results of FIG. 7, it can be seen that the gasket according to the present invention can exhibit the same sealing effect as that of the conventional integrated gasket while being a split gasket type.
이상에서 첨부된 도면을 참조하여 본 발명에 따른 리튬이온 배터리팩용 가스켓의 실시예에 대하여 설명하였다. 리튬이온 배터리팩용 가스켓은 위에서 설명된 실시예들의 구성과 방법에 한정되는 것이 아니라, 실시예들은 다양한 변형이 이루어질 수 있도록 각 실시예들의 전부 또는 일부가 선택적으로 조합되어 구성될 수도 있다.An embodiment of a gasket for a lithium ion battery pack according to the present invention has been described above with reference to the accompanying drawings. The gasket for the lithium ion battery pack is not limited to the configuration and method of the embodiments described above, but the embodiments may be configured by selectively combining all or some of the embodiments so that various modifications can be made.
본 발명은 본 발명의 정신 및 필수적 특징을 벗어나지 않는 범위에서 다른 특정한 형태로 구체화될 수 있음은 당업자에게 자명하다. 따라서, 상기의 상세한 설명은 모든 면에서 제한적으로 해석되어서는 아니되고 예시적인 것으로 고려되어야 한다. 본 발명의 범위는 첨부된 청구항의 합리적 해석에 의해 결정되어야 하고, 본 발명의 등가적 범위 내에서의 모든 변경은 본 발명의 범위에 포함된다.It is apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit and essential features of the present invention. Accordingly, the above detailed description should not be construed as limiting in all aspects and should be considered as illustrative. The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.
[부호의 설명][Description of the code]
5 : 제1하우징5: first housing
9 : 결합부 9: coupling part
9a : 제1결합부9a: first coupling part
9a-1 결합홀9a-1 coupling hole
9b : 제2결합부9b: second coupling part
9b-1 : 결합홀9b-1: Coupling Hole
8 : 제2하우징8: 2nd housing
15 : 에어갭15: air gap
3: 일체형가스켓3: integrated gasket
4 : 볼트4: Bolt
4a : 볼트머리4a: bolt head

Claims (5)

  1. 제1 및 제2하우징 각각의 결합부를 복수 개의 볼트 결합으로 체결하는 리튬이온 배터리팩의 상기 결합부 사이에 설치되어 실링하는 가스켓에 있어서,In the gasket to be installed and sealed between the coupling portion of the lithium ion battery pack for fastening the coupling portion of each of the first and second housing by a plurality of bolt coupling,
    상기 가스켓은 상기 복수 개의 볼트들 중 적어도 일부 사이에서 분할되어 설치되는 복수 개의 분할가스켓으로 이루어지고, The gasket is composed of a plurality of split gaskets are divided and installed between at least some of the plurality of bolts,
    상기 분할가스켓 각각의 양 단부의 나사결합부에는 상기 볼트가 설치되는 체결홀이 형성되고, 서로 인접한 상기 나사결합부는 상기 볼트에 의해 결합되도록 상기 체결홀이 서로 겹쳐지도록 배치되며,Screwing portions at both ends of each of the split gaskets are provided with fastening holes for installing the bolts, and the screwing portions adjacent to each other are disposed so that the fastening holes overlap each other so as to be joined by the bolts.
    상기 볼트가 체결된 상태에서 상기 볼트의 머리부분에 의한 가압으로 인해 서로 겹쳐진 상기 체결홀 부근의 상기 나사결합부 각각이 가압되도록, 상기 나사결합부의 겹쳐진 부분은 상기 볼트의 머리부분의 외경보다 안쪽으로 배치되는 것을 특징으로 하는 리튬이온 배터리팩용 가스켓.The overlapped portions of the screw coupling portions are inward of the outer diameter of the head of the bolt so that each of the screw coupling portions near the fastening holes overlapped with each other due to the pressing by the head of the bolt is pressed in the state where the bolts are fastened. Gasket for a lithium ion battery pack, characterized in that arranged.
  2. 제1항에 있어서,The method of claim 1,
    상기 나사결합부는 상기 나사결합부의 단을 향해 경사지도록 이루어지는 것을 특징으로 하는 리튬이온 배터리팩용 가스켓.The screw coupling portion is a gasket for a lithium ion battery pack, characterized in that the inclined toward the end of the screw coupling portion.
  3. 제2항에 있어서,The method of claim 2,
    상기 나사결합부의 단, 상기 나사결합부의 단에 인접한 다른 하나의 분할가스켓의 일면 및 상기 나사결합부의 단에 인접한 상기 결합부 사이에는 에어 갭이 형성되고, 상기 에어 갭은 상기 볼트가 상기 결합부에 체결된 상태에서 실링되는 것을 특징으로 하는 리튬이온 배터리팩용 가스켓. An air gap is formed between the end of the screw coupling portion, one side of the other split gasket adjacent to the end of the screw coupling portion, and the coupling portion adjacent to the screw coupling portion, and the air gap has the bolt connected to the coupling portion. Gasket for lithium ion battery pack, characterized in that the sealing in the fastened state.
  4. 제1항에 있어서,The method of claim 1,
    상기 나사결합부의 단은 기결정된 직경의 원호 부분을 포함하여 이루어지고, 상기 나사결합부 단의 원호 부분의 직경은 상기 볼트 머리의 직경보다 작도록 이루어지는 것을 특징으로 하는 리튬이온 배터리팩용 가스켓.The end of the screw coupling portion comprises an arc portion of a predetermined diameter, the diameter of the circular arc portion of the screw coupling portion end is smaller than the diameter of the bolt head characterized in that the gasket for lithium ion battery pack.
  5. 제1항에 있어서,The method of claim 1,
    상기 분할가스켓은,The split gasket,
    상면 및 하면을 형성하는 폼 러버; 및Foam rubber forming an upper surface and a lower surface; And
    상기 상면 및 하면 사이에 배치되는 스틸을 포함하고, A steel disposed between the upper and lower surfaces,
    상기 서로 인접한 분할가스켓의 나사결합부는 서로 겹쳐져있고, 서로 겹쳐져있는 상기 폼 러버는 서로 겹쳐지지 않은 상기 폼 러버 보다 두꺼운 두께를 갖는 것을 특징으로 하는 리튬이온 배터리팩용 가스켓.The screw coupling portions of the adjacent split gaskets overlap each other, and the overlapping foam rubbers have a thickness greater than that of the non-overlapping foam rubbers.
PCT/KR2016/012785 2016-11-08 2016-11-08 Gasket for lithium ion battery pack WO2018088577A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
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WO2021051990A1 (en) * 2019-09-17 2021-03-25 宁德时代新能源科技股份有限公司 Battery, drive device, and vehicle

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JP2012097896A (en) * 2010-10-08 2012-05-24 Primearth Ev Energy Co Ltd Seal structure using gasket
JP2012122536A (en) * 2010-12-08 2012-06-28 Nok Corp Gasket
KR101610487B1 (en) * 2014-08-12 2016-04-07 현대자동차주식회사 Case structure of high voltage battery for Electric Vehicle

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JP2001280500A (en) * 2000-03-30 2001-10-10 Nissan Diesel Motor Co Ltd Seal structure for oil pan
KR20100034482A (en) * 2008-09-24 2010-04-01 케이피에치이 주식회사 Plate heat exchanger gasket
JP2012097896A (en) * 2010-10-08 2012-05-24 Primearth Ev Energy Co Ltd Seal structure using gasket
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Publication number Priority date Publication date Assignee Title
WO2021051990A1 (en) * 2019-09-17 2021-03-25 宁德时代新能源科技股份有限公司 Battery, drive device, and vehicle

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