KR20130106484A - Device for mounting battery pack - Google Patents

Device for mounting battery pack Download PDF

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Publication number
KR20130106484A
KR20130106484A KR1020120028047A KR20120028047A KR20130106484A KR 20130106484 A KR20130106484 A KR 20130106484A KR 1020120028047 A KR1020120028047 A KR 1020120028047A KR 20120028047 A KR20120028047 A KR 20120028047A KR 20130106484 A KR20130106484 A KR 20130106484A
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KR
South Korea
Prior art keywords
battery pack
pack mounting
space
cooling duct
mounting
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KR1020120028047A
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Korean (ko)
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KR101896704B1 (en
Inventor
임해규
전윤철
이용진
서정훈
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현대자동차주식회사
기아자동차주식회사
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Priority to KR1020120028047A priority Critical patent/KR101896704B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/06—Arrangement in connection with cooling of propulsion units with air cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0416—Arrangement in the rear part of the vehicle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

PURPOSE: A device for mounting a battery pack has safety against rear impact by obtaining the deformation space for a side member, has durable rigidity and productivity, and saves raw material costs. CONSTITUTION: A device for mounting a battery pack has a cooling duct (20) including an inlet (22) and an outlet (24) formed in the front end and the rear end and a battery pack mounting space in which a battery pack is mounted between the inlet and the outlet; a mounting frame (10) in which a plurality of side members (12) and cross members (14) are attached to each other; a cover plate (28) which seals the upper part of the battery pack mounting space of the cooling duct; and a lower case (32) which covers the lower part of the cooling duct in which the battery pack is mounted and covers the side part of the battery pack mounting space.

Description

배터리팩 마운팅 장치{DEVICE FOR MOUNTING BATTERY PACK}Battery pack mounting device {DEVICE FOR MOUNTING BATTERY PACK}

본 발명은 배터리팩 마운팅 장치에 관한 것으로서, 더욱 상세하게는 전기차 또는 하이브리드 차량의 트렁크 타이어 웰내에 고전압 배터리팩를 장착할 때, 후방충돌에 대한 안전성을 확보하는 동시에 제작 용이성 및 양산성 향상을 통한 원가절감을 이룰 수 있도록 한 배터리팩 마운팅 장치에 관한 것이다.
The present invention relates to a battery pack mounting apparatus, and more particularly, when mounting a high voltage battery pack in a trunk tire well of an electric vehicle or a hybrid vehicle, it secures safety against rear collision and at the same time reduces cost by improving the ease of production and mass production. It relates to a battery pack mounting device to achieve this.

전기자동차 및 하이브리드 자동차는 필수적인 부품으로서, 고전압 배터리, 구동모터, 인버터, LDC(Low DC-DC Converter), 배터리 관리를 위한 일종의 제어기인 BMS(Battery Managemenet System) 등을 포함하고, 이들 부품들이 모듈화된 배터리모듈이 차량의 트렁크 룸 또는 리어시트의 배면쪽과 트렁크 룸 사이공간 등에 탑재되고 있다.Electric and hybrid vehicles are essential components, including high voltage batteries, drive motors, inverters, low DC-DC converters, and battery management systems (BMSs), a type of controller for battery management. The battery module is mounted in the trunk room or rear seat of the vehicle and the space between the trunk room.

따라서, 고전압배터리, 인버터, LDC, BMS, 냉각팬 등이 하나로 모듈화된 배터리모듈을 차량내에 탑재할 때, 트렁크 룸의 면적을 줄이지 않는 구조, 예비 타이어 설치 공간을 차지하지 않는 구조, 그리고 리어시트와의 간섭이 없는 구조 등을 감안하여 탑재하는 것이 바람직하다 할 것이다.Therefore, when mounting a battery module in which a high voltage battery, an inverter, an LDC, a BMS, a cooling fan, etc. are modularized in a vehicle, a structure that does not reduce the area of the trunk room, a structure that does not occupy a spare tire installation space, and a rear seat and It would be desirable to mount in consideration of a structure without interference.

차량의 실내 트렁크쪽에 배터리모듈을 탑재함에 있어서, 리어플로우 즉, 트렁크 바닥 위에 배터리모듈을 탑재하는 것은 예비타이어를 위한 공간인 타이어 웰(tire well)쪽에 탑재하는 것에 비하여 트렁크 공간 탑재성 및 상품성 측면에서 불리한 것이 사실이다. In mounting the battery module on the indoor trunk side of the vehicle, mounting the battery module on the rear flow, that is, on the floor of the trunk, in terms of trunk space mountability and merchandise compared to mounting on the tire well side, which is a space for spare tires It is a disadvantage.

반면에 타이어 웰내에 배터리모듈을 탑재할 경우에는 후방충돌에 대한 안전성 문제를 내포하고 있다.On the other hand, when the battery module is mounted in the tire well, there is a safety problem against rear collision.

여기서, 종래의 타이어 웰내에 배터리모듈을 탑재하는 구조의 일례를 살펴보면 다음과 같다.Here, an example of a structure for mounting a battery module in a conventional tire well is as follows.

첨부한 도 12에 도시된 바와 같이, 배터리가 적층된 배터리 팩(100)을 케이스(102)내에 내재시키는 동시에 케이스의 상부에 가로방향을 따라 한 쌍의 벤딩 처리된 각관 마운팅멤버(104)를 장착하고, 케이스(102)의 상부 개방부를 다이캐스팅에 의하여 제작된 마운팅 프레임(106)으로 마감시킨 구조가 적용되고 있다.As shown in FIG. 12, the battery pack 100 in which the batteries are stacked is embedded in the case 102, and a pair of bent tube mounting members 104 are mounted on the upper portion of the case along the transverse direction. In addition, a structure in which the upper opening of the case 102 is finished with a mounting frame 106 manufactured by die casting is applied.

그러나, 상기 다이캐스팅 마운팅 프레임은 강도, 전자파 차폐 등의 특성이 우수하여 적용되고, 또한 후방충돌에 대한 강성을 유지하여 안전성 확보를 위해 적용된 것이지만, 마그네슘 재질을 이용한 다이캐스팅 공정 등이 필요하므로 원가상승의 원인이 되고 있다.However, the die-casting mounting frame is applied for excellent strength, shielding of electromagnetic waves, etc., and also for securing safety by maintaining rigidity against back collision. However, a die-casting process using magnesium material is required, causing a cost increase. It is becoming.

종래의 타이어 웰내에 배터리팩을 탑재하는 구조의 다른 예를 살펴보면 다음과 같다.Another example of a structure in which a battery pack is mounted in a conventional tire well is as follows.

첨부한 도 13에 도시된 바와 같이, 타이어 웰(200)내에 복수개의 각관(202)을 가로 및 세로방향으로 배열하는 동시에 겹쳐지는 부분을 CO2 용접하여, 배터리팩을 비롯한 LDC, 전장품 등이 모듈화된 배터리모듈(204)을 받쳐주도록 하고, 각 각관(202)의 양 끝단을 차체 프레임에 조립되도록 벤딩시킨 구조가 적용되고 있으나, 다음과 같은 단점이 있었다.As shown in FIG. 13, a plurality of corner tubes 202 are arranged horizontally and vertically in the tire well 200, and at the same time, the overlapping portions are CO 2 welded to modularize LDCs, electrical components, and the like including battery packs. The battery module 204 is supported, and a structure in which both ends of each tube 202 are bent to be assembled to the vehicle body frame has been applied, but has the following disadvantages.

첫째, 마운팅멤버로 각관을 이용하여 내구 강성이나 후방충돌에 대한 안전성을 확보할 수 있으나, 양산성 및 치수 정확도를 만족하기 어려운 단점이 있다.First, it is possible to secure safety against endurance stiffness or rear collision by using a pipe as a mounting member, but it is difficult to satisfy mass productivity and dimensional accuracy.

둘째, 각관 밴딩처리로 안쪽 R값 부위에 함몰이 생기는 현상이 발생하여 품질 문제를 초래하는 단점이 있다.Second, there is a disadvantage that the depression occurs in the inner R value portion by the tube bending process, causing a quality problem.

셋째, 각관 간의 연결을 CO2 용접으로 연결함으로써, 제작 불균일 및 멤버 단품품질 정확도를 맞추는데 어려움이 있다.Third, by connecting the connection between the pipes by the CO 2 welding, there is a difficulty in matching the manufacturing non-uniformity and the accuracy of the member unit quality.

넷째, 전장품 등의 마운팅을 위하여 각관에 다수의 팹 너트를 적용함에 따라,양산성을 떨어뜨리는 동시에 원가상승의 원인이 되는 단점이 있다.Fourth, by applying a plurality of fab nuts to each tube for mounting of the electrical equipment, there is a disadvantage that the mass production is lowered and the cost rises.

이에, 보다 효과적이면서 경제적인 배터리 모듈 장착 구조가 요구되고 있다.
Therefore, a more effective and economical battery module mounting structure is required.

본 발명은 상기와 같은 점을 감안하여 안출한 것으로서, 배터리팩을 냉각덕트와 연통 가능하게 안착시키고, 배터리팩 위쪽에 충돌에너지를 용이하게 흡수할 수 있는 폐곡면을 갖는 사이드 멤버(SIDE MBR) 및 크로스 멤버를 장착하여, 사이드 멤버의 변형공간 확보를 통한 후방충돌에 대한 안전성을 확보할 수 있고, 내구 강성 및 양산성을 확보할 수 있으며, 기존 마운팅 구조 대비 원가절감 효과를 실현할 수 있도록 한 배터리팩 마운팅 장치를 제공하는데 그 목적이 있다.
The present invention has been made in view of the above, the side member (SIDE MBR) having a closed curved surface that can be seated in communication with the cooling duct, the battery pack can easily absorb the collision energy on the battery pack and By installing a cross member, it is possible to secure safety against rear collision by securing the deformation space of the side member, to secure durability and mass production, and to realize cost reduction effect compared to the existing mounting structure. The purpose is to provide a mounting device.

상기한 목적을 달성하기 위한 본 발명은: 전단 및 후단부에 각각 유입구 및 배출구가 형성되고, 유입구와 배출구 사이에 배터리 팩이 내설되는 배터리 팩 장착 공간이 형성된 냉각덕트와; 다수개의 사이드 멤버와 크로스 멤버가 교차되어 접합된 장착프레임과; 장착프레임의 저면에 일체로 장착되어 냉각덕트의 배터리 팩 장착 공간의 상부를 밀폐시키는 커버플레이트와; 상기 배터리 팩이 내설된 냉각덕트의 하단부를 커버하며 장착되는 하부케이스; 를 포함하여 구성되고, 상기 사이드 멤버의 전단부를 차체의 리어플로어에 조립 고정시키고, 후단부를 하부케이스의 후벽면까지 자유단으로 연장시켜 후방 충돌시 충격 흡수 역할을 하도록 한 것을 특징으로 하는 배터리팩 마운팅 장치를 제공한다.The present invention for achieving the above object comprises: a cooling duct formed in the front and rear ends of the inlet and outlet, respectively, the battery pack mounting space in which the battery pack is built between the inlet and outlet; A mounting frame in which a plurality of side members and a cross member are crossed and joined; A cover plate integrally mounted to the bottom of the mounting frame to seal an upper portion of the battery pack mounting space of the cooling duct; A lower case mounted to cover the lower end of the cooling duct in which the battery pack is installed; And a front end portion of the side member assembled to the rear floor of the vehicle body, and extends the rear end portion to the rear wall surface of the lower case so as to absorb shock during rear collision. Provide the device.

본 발명의 바람직한 구현예로서, 상기 사이드 멤버는 U자형 하부판과 평판형 상부판이 점용접에 의하여 접합되어, 충격 흡수를 위한 폐곡면의 내부공간이 형성된 구조로 제작된 것임을 특징으로 한다.As a preferred embodiment of the present invention, the side member is characterized in that the U-shaped lower plate and the flat plate is joined by spot welding, the structure is formed in the inner space of the closed curved surface for shock absorption.

상기 다수개의 사이드 멤버와 크로스 멤버 간의 조립 고정을 위하여 상호 교차 지점에 볼트가 체결되는 것을 특징으로 한다.It is characterized in that the bolt is fastened to the cross point for assembly assembly between the plurality of side members and cross members.

또한, 상기 사이드 멤버의 위쪽에 밀착되며 교차 배열된 크로스 멤버의 양단부는 리어플로어에 조립 고정되는 것을 특징으로 한다.In addition, both ends of the cross member in close contact with the upper side of the side member is arranged and fixed to the rear floor.

바람직하게는, 상기 냉각덕트의 유입구는 배터리 팩 장착 공간의 전단 상부에서 위쪽으로 연장 형성되고, 배출구는 배터리 팩 장착 공간의 후단 하부에서 위쪽으로 연장 형성되는 것을 특징으로 한다.Preferably, the inlet of the cooling duct extends upward from the front end of the battery pack mounting space, and the outlet is formed extending from the bottom of the rear end of the battery pack mounting space.

특히, 상기 배터리 팩 장착 공간내에 배치되는 배터리팩은 그 상단부가 사이드 멤버 및 크로스 멤버의 저면에 조립 고정되어, 배터리팩의 저면이 배터리 팩 장착공간의 바닥면으로부터 이격되어 공기 흐름을 위한 공간으로 형성되도록 한 것을 특징으로 한다.
Particularly, the battery pack disposed in the battery pack mounting space has an upper end thereof assembled and fixed to the bottom of the side member and the cross member so that the bottom of the battery pack is spaced apart from the bottom of the battery pack mounting space to form a space for air flow. It is characterized by one.

상기한 과제 해결 수단을 통하여, 본 발명은 다음과 같은 효과를 제공한다.Through the above-mentioned means for solving the problems, the present invention provides the following effects.

본 발명에 따르면, 폐곡면을 갖는 사이드 멤버와 크로스 멤버를 교차시킨 장착프레임에 배터리팩을 장착하고, 배터리팩 후방에 사이드 멤버의 후단(자유단)이 후방으로 돌출되는 충격흡수공간을 둠으로써, 후방충돌시 충격흡수공간에 존재하는 사이드 멤버의 후단부가 변형되면서 충격을 흡수할 수 있고, 결국 후방충돌에 대한 안전성을 확보할 수 있다.According to the present invention, by mounting the battery pack on the mounting frame intersecting the cross member and the side member having a closed surface, by providing a shock absorbing space in which the rear end (free end) of the side member protrudes rearward, The rear end portion of the side member existing in the shock absorbing space during the rear collision may be deformed while absorbing the shock, thereby securing safety against the rear collision.

특히, 후방 충돌시 사이드 멤버의 후단이 변형되며 충격에너지를 흡수하므로, 배터리팩 및 고전압 부품의 손상을 방지하며 보호할 수 있다.In particular, the rear end of the side member is deformed during the rear collision and absorbs the impact energy, thereby preventing and protecting the battery pack and the high voltage components from damage.

또한, 사이드 멤버를 폐곡면을 이루는 구조로 적용하여, 후방 충돌시 내구 강성을 확보할 수 있다.In addition, by applying the side member in a structure forming a closed surface, it is possible to ensure the durability of the rear collision.

또한, 냉각덕트내에 배터리팩을 안착 고정시킴에 따라, 배터리팩에 대한 냉각 효과를 얻을 수 있다.
In addition, by mounting and fixing the battery pack in the cooling duct, it is possible to obtain a cooling effect on the battery pack.

도 1 및 도 2는 본 발명에 따른 배터리팩 마운팅 장치를 나타내는 사시도,
도 3은 본 발명에 따른 배터리팩 마운팅 장치를 타이어 웰에 설치시킨 것을 보여주는 개략도,
도 4는 도 2의 A-A선을 취한 단면도,
도 5는 도 2의 B-B선을 취한 단면도,
도 6은 본 발명에 따른 배터리팩 마운팅 장치에 배터리팩을 조립하는 방법을 설명하는 개략적 측면도,
도 7은 본 발명에 따른 배터리팩 마운팅 장치의 장착프레임만을 나타낸 평면도,
도 8은 도 7의 C-C선을 취한 단면도,
도 9는 도 7의 D-D선을 취한 단면도,
도 10은 도 7의 E-E선을 위한 단면도,
도 11은 본 발명에 따른 배터리팩 마운팅 장치의 후방 충돌시 충격 흡수가 이루어짐을 설명하는 개략적 측면도,
도 12 및 도 13은 종래의 배터리 마운팅 장치를 나타내는 개략도.1 and 2 are a perspective view showing a battery pack mounting apparatus according to the present invention,
3 is a schematic view showing that the battery pack mounting apparatus according to the invention installed in the tire well,
4 is a cross-sectional view taken along the line AA of FIG.
5 is a cross-sectional view taken along the line BB of FIG.
6 is a schematic side view illustrating a method of assembling a battery pack in a battery pack mounting apparatus according to the present invention;
7 is a plan view showing only the mounting frame of the battery pack mounting apparatus according to the present invention,
8 is a cross-sectional view taken along the line CC of FIG.
9 is a cross-sectional view taken along the line DD of FIG. 7;
10 is a cross-sectional view for the EE line of FIG.
11 is a schematic side view illustrating that the shock absorption is made in the rear impact of the battery pack mounting apparatus according to the present invention,
12 and 13 are schematic views showing a conventional battery mounting apparatus.

이하, 본 발명의 바람직한 실시예를 첨부도면을 참조로 상세하게 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 전기차 또는 하이브리드 차량의 트렁크 타이어 웰내에 배터리팩을 탑재하되, 후방충돌에 대한 안전성을 확보하는 동시에 제작 용이성 및 양산성 향상을 통한 원가절감을 이룰 수 있는 구조로 탑재시킨 점에 특징이 있다.The present invention is characterized in that the battery pack is mounted in the trunk tire well of an electric vehicle or a hybrid vehicle, while ensuring safety against rear collisions, and at the same time, a structure capable of achieving cost reduction through improved manufacturing and mass production. .

첨부한 도 1 내지 도 5에 도시된 바와 같이, 상기 타이어 웰 또는 리어시트 뒤쪽의 리어플로어에 하부케이스(32)에 의하여 커버되는 냉각덕트(20)가 전후방향을 따라 배열된다.1 to 5, the cooling duct 20 covered by the lower case 32 is arranged along the front and rear directions on the rear floor behind the tire well or the rear seat.

상기 냉각덕트(20)는 전단 및 후단부에 각각 유입구(22) 및 배출구(24)가 형성되고, 유입구(22)와 배출구(24) 사이에 배터리 팩(30)이 내설되는 배터리 팩 장착 공간(26)이 형성된 구조로 제작된 것이다.The cooling duct 20 has an inlet 22 and an outlet 24 formed at the front end and the rear end, respectively, and a battery pack mounting space in which the battery pack 30 is installed between the inlet 22 and the outlet 24 ( 26) is made of a structure formed.

이때, 상기 냉각덕트(20)의 유입구(22)는 배터리 팩 장착 공간(26)의 전단 상부에서 위쪽으로 연장 형성되고, 배출구(24)는 배터리 팩 장착 공간(26)의 후단 하부에서 위쪽으로 연장 형성되며, 이에 배터리 팩 장착 공간(26)은 유입구(22) 및 배출구(24) 보다 낮은 위치에 놓이게 된다.In this case, the inlet 22 of the cooling duct 20 extends upward from the front end of the battery pack mounting space 26, and the outlet 24 extends upward from the bottom of the rear end of the battery pack mounting space 26. The battery pack mounting space 26 is formed at a position lower than the inlet 22 and the outlet 24.

이렇게 배열된 냉각덕트(20)의 배터리 팩 장착 공간(26)에 배터리 팩(30)이 배치되고, 그 위쪽에 장착프레임(10) 및 커버플레이트(28)가 밀폐 가능하게 조립된다.The battery pack 30 is disposed in the battery pack mounting space 26 of the cooling duct 20 arranged as described above, and the mounting frame 10 and the cover plate 28 are assembled to be hermetically sealed thereon.

첨부한 도 7 내지 도 10에 도시된 바와 같이, 상기 장착프레임(10)은 다수개의 사이드 멤버(12)와 크로스 멤버(14)가 서로 수직 교차된 구조로서, 각 사이드 멤버(12)의 위쪽에 크로스 멤버(14)각 밀착되며 교차 배열되며, 특히 다수개의 사이드 멤버(12)와 크로스 멤버(14) 간의 조립 고정을 위하여 상호 교차되는 지점에 볼트(16)가 체결된다.As shown in FIG. 7 to FIG. 10, the mounting frame 10 has a structure in which a plurality of side members 12 and cross members 14 vertically intersect with each other. The cross members 14 are arranged in close contact with each other, and the bolts 16 are fastened at points intersecting with each other for assembling and fixing between the plurality of side members 12 and the cross members 14.

이때, 상기 장착프레임(10)의 저면, 즉 사이드 멤버(12)의 저면에는 냉각덕트(20)의 배터리 팩 장착 공간(26)의 상부를 밀폐시키는 커버플레이트(28)가 일체로 장착된다.At this time, the cover plate 28 for sealing the upper portion of the battery pack mounting space 26 of the cooling duct 20 is integrally mounted on the bottom surface of the mounting frame 10, that is, the bottom surface of the side member 12.

또한, 상기 배터리 팩(30)이 내설된 냉각덕트(20) 등이 상부가 개방된 하부케이스(32)내에 삽입 안착되고, 하부케이스(32)의 저면은 타이어 웰 또는 리어시트 뒤쪽의 리어플로어에 안착된다.In addition, the cooling duct 20 and the like, in which the battery pack 30 is installed, are inserted and seated in the lower case 32 having the upper portion open, and the bottom surface of the lower case 32 is attached to the rear floor behind the tire well or the rear seat. It is seated.

따라서, 상기 하부케이스(32)는 배터리 팩(30)이 내설된 냉각덕트(20) 하단부를 커버하는 동시에 배터리 팩 장착 공간(26)의 측부를 커버하며 밀폐시키는 역할을 한다.Accordingly, the lower case 32 covers the lower end of the cooling duct 20 in which the battery pack 30 is installed and at the same time covers and seals the side of the battery pack mounting space 26.

본 발명에 따르면, 상기 사이드 멤버(12)는 U자형 하부판(12a)과 평판형 상부판(12b)이 점용접에 의하여 접합되어, 충격 흡수를 위한 폐곡면의 내부공간(12c)이 형성된 구조로 제작되며, 그 전단부는 차체의 리어플로어(18)에 조립 고정되고, 후단부는 하부케이스(32)의 후벽면까지 자유단이 되면서 연장된다.According to the present invention, the side member 12 has a structure in which the U-shaped lower plate 12a and the flat plate upper plate 12b are joined by spot welding, and the inner space 12c of the closed curved surface for shock absorption is formed. The front end portion is assembled and fixed to the rear floor 18 of the vehicle body, and the rear end portion extends while being a free end to the rear wall surface of the lower case 32.

또한, 상기 사이드 멤버(12)의 위쪽에 교차 배열된 크로스 멤버(14)의 양단부도 리어플로어(18)에 조립 고정된다.In addition, both ends of the cross member 14 arranged to be arranged above the side member 12 are also assembled and fixed to the rear floor 18.

이와 같이, 상기 사이드 멤버(12)의 전단 및 크로스 멤버(14)의 양단이 리어플로어 등에 고정된 상태에서, 첨부한 도 11에서 보듯이 상기 사이드 멤버(12)의 후단부는 하부케이스(32)의 후벽면까지 연장 배열되어 후방 충돌시 변형되면서 충격을 흡수하는 역할을 하게 된다.As described above, the front end of the side member 12 and both ends of the cross member 14 are fixed to the rear floor or the like, and as shown in FIG. 11, the rear end of the side member 12 is formed of the lower case 32. It extends to the rear wall and deforms during the rear collision to absorb shocks.

한편, 도 6에서 보듯이 상기 배터리팩(30)을 조립 고정시키기 위하여, 하부케이스(32)로 배터리 팩 장착 공간(26)의 측부를 커버하기 전에, 배터리 팩 장착 공간(26)내의 배터리팩(30)을 들어올려서 그 상단부가 사이드 멤버(12) 및 크로스 멤버(14)의 저면에 브라켓 등을 이용하여 조립 고정되도록 함으로써, 배터리팩(30)의 저면이 배터리 팩 장착공간(26)의 바닥면으로부터 이격되어 공기 흐름을 위한 공간으로 형성되도록 한다.Meanwhile, in order to assemble and fix the battery pack 30 as shown in FIG. 6, before the side case of the battery pack mounting space 26 is covered by the lower case 32, the battery packs in the battery pack mounting space 26 ( 30, and the upper end thereof is assembled and fixed to the bottom of the side member 12 and the cross member 14 by using a bracket or the like, so that the bottom of the battery pack 30 is the bottom surface of the battery pack mounting space 26. Spaced from the space to form a space for airflow.

여기서, 상기한 구조로 이루어진 본 발명의 배터리팩 마운팅 장치에 대한 기능을 살펴보면 다음과 같다.Here, the function of the battery pack mounting apparatus of the present invention having the above structure will be described.

일단, 배터리 팩(30)이 냉각덕트(20)의 배터리 팩 장착 공간(26)내에 존재함에 따라, 유입구(22)로부터 들어온 냉각공기가 커버플레이트(28)에 의하여 밀폐된 냉각덕트(20)의 상부공간을 지나서 배터리팩(30)의 상단에서 하단부쪽으로 흐르게 되어 배터리팩(30)의 냉각이 이루어지고, 연이어 배터리팩(30)와 열교환이 이루어진 냉각공기는 배출구(24)를 통하여 배출된다.Once the battery pack 30 is present in the battery pack mounting space 26 of the cooling duct 20, the cooling air coming from the inlet 22 of the cooling duct 20 is closed by the cover plate 28. Cooling of the battery pack 30 is achieved by flowing from the upper end of the battery pack 30 to the lower end through the upper space, and the cooling air heat exchanged with the battery pack 30 in succession is discharged through the outlet (24).

이렇게 배터리 팩(30)이 냉각덕트(20)의 배터리 팩 장착 공간(26)내에 장착됨에 따라, 일단 배터리팩(30)의 냉각 효과를 얻을 수 있다.As the battery pack 30 is mounted in the battery pack mounting space 26 of the cooling duct 20, the cooling effect of the battery pack 30 can be obtained once.

특히, 다수개의 사이드 멤버(12)와 크로스 멤버(14)를 직각으로 교차시켜 격자 형상을 구현하여 간단한 양산 조립구조를 갖는 장착프레임(10)을 배터리 팩(30)이 내설된 냉각덕트(20) 위쪽에 적용함에 따라, 내구 강성 및 후방충돌 강성을 용이하게 확보할 수 있다.In particular, the cooling duct 20 in which the battery pack 30 is built into the mounting frame 10 having a simple mass production assembly structure by implementing a grid shape by crossing a plurality of side members 12 and the cross members 14 at right angles. By applying upwards, it is possible to easily secure the durability and rear collision stiffness.

즉, 후방 충돌시 하부케이스(32)의 후벽면까지 자유단으로서 연장 배열된 사이드 멤버(12)의 후단부가 그 충격에 의하여 변형되면서 충격을 흡수하는 역할을 하게 되므로, 그 앞쪽에 배치된 배터리팩을 비롯한 고전압 부품의 손상을 방지하며 보호할 수 있다.That is, the rear end portion of the side member 12 arranged as a free end extending to the rear wall surface of the lower case 32 during the rear collision serves to absorb the shock while deforming by the impact, so that the battery pack disposed in front It can prevent and protect high voltage parts such as

더욱이, 상기 사이드 멤버(12)는 그 내부에 충격 흡수를 위한 폐곡면의 내부공간(12c)이 형성된 구조로 적용됨에 따라, 후방 충돌시 내구 강성을 크게 확보할 수 있다.
In addition, the side member 12 is applied to the structure in which the inner space (12c) of the closed curved surface for shock absorption therein, it is possible to secure a large durability in the rear collision.

10 : 장착프레임
12 : 사이드 멤버
12a : 하부판
12b : 상부판
12c : 폐곡면의 내부공간
14 : 크로스 멤버
16 : 볼트
18 : 리어플로어
20 : 냉각덕트
22 : 유입구
24 : 배출구
26 : 배터리 팩 장착 공간
28 : 커버플레이트
30 : 배터리 팩
32 : 하부케이스10: mounting frame
12: side member
12a: bottom plate
12b: top plate
12c: internal space of closed curve
14: Cross member
16: Bolt
18: rear floor
20: cooling duct
22: inlet
24: outlet
26: battery pack mounting space
28: cover plate
30: Battery pack
32: lower case

Claims (6)

전단 및 후단부에 각각 유입구(22) 및 배출구(24)가 형성되고, 유입구(22)와 배출구(24) 사이에 배터리 팩(30)이 내설되는 배터리 팩 장착 공간(26)이 형성된 냉각덕트(20)와;
다수개의 사이드 멤버(12)와 크로스 멤버(14)가 교차되어 접합된 장착프레임(10)과;
장착프레임(10)의 저면에 일체로 장착되어 냉각덕트(20)의 배터리 팩 장착 공간(26)의 상부를 밀폐시키는 커버플레이트(28)와;
상기 배터리 팩(30)이 내설된 냉각덕트(20)의 하단부를 커버하는 동시에 배터리 팩 장착 공간(26)의 측부를 커버하며 밀폐시키는 하부케이스(32);
를 포함하여 구성되고,
상기 사이드 멤버(12)의 전단부를 차체의 리어플로어(18)에 조립 고정시키고, 후단부를 하부케이스(32)의 후벽면까지 자유단으로 연장시켜 후방 충돌시 충격 흡수 역할을 하도록 한 것을 특징으로 하는 배터리팩 마운팅 장치.
Cooling duct in which the inlet 22 and the outlet 24 are formed in the front and rear ends, respectively, and the battery pack mounting space 26 in which the battery pack 30 is built between the inlet 22 and the outlet 24 ( 20);
A mounting frame 10 in which a plurality of side members 12 and a cross member 14 intersect with each other;
A cover plate 28 integrally mounted on the bottom of the mounting frame 10 to seal an upper portion of the battery pack mounting space 26 of the cooling duct 20;
A lower case 32 covering the lower end of the cooling duct 20 in which the battery pack 30 is internally installed and covering and sealing the side of the battery pack mounting space 26;
And,
The front end of the side member 12 is assembled and fixed to the rear floor 18 of the vehicle body, and the rear end extends to the free end to the rear wall surface of the lower case 32 to act as a shock absorber in the rear collision Battery pack mounting device.
청구항 1에 있어서,
상기 사이드 멤버(12)는 U자형 하부판(12a)과 평판형 상부판(12b)이 점용접에 의하여 접합되어, 충격 흡수를 위한 폐곡면의 내부공간(12c)이 형성된 구조로 제작된 것임을 특징으로 하는 배터리팩 마운팅 장치.
The method according to claim 1,
The side member 12 is a U-shaped bottom plate 12a and the flat plate 12b is joined by spot welding, characterized in that the structure is made of a structure in which the inner space 12c of the closed surface for shock absorption is formed Battery pack mounting device.
청구항 1에 있어서,
상기 다수개의 사이드 멤버(12)와 크로스 멤버(14) 간의 조립 고정을 위하여 상호 교차 지점에 볼트(16)가 체결되는 것을 특징으로 하는 배터리팩 마운팅 장치.
The method according to claim 1,
Battery pack mounting device, characterized in that the bolt (16) is fastened to the intersection point for assembly assembly between the plurality of side members (12) and the cross member (14).
청구항 1에 있어서,
상기 사이드 멤버(12)의 위쪽에 교차 배열된 크로스 멤버(14)의 양단부는 리어플로어(18)에 조립 고정되는 것을 특징으로 하는 배터리팩 마운팅 장치.
The method according to claim 1,
Battery pack mounting device, characterized in that both ends of the cross member (14) arranged cross over the side member (12) is assembled and fixed to the rear floor (18).
청구항 1에 있어서,
상기 냉각덕트(20)의 유입구(22)는 배터리 팩 장착 공간(26)의 전단 상부에서 위쪽으로 연장 형성되고, 배출구(24)는 배터리 팩 장착 공간(26)의 후단 하부에서 위쪽으로 연장 형성되는 것을 특징으로 하는 배터리팩 마운팅 장치.
The method according to claim 1,
The inlet 22 of the cooling duct 20 extends upward from the front end of the battery pack mounting space 26, and the outlet 24 extends upward from the bottom end of the rear end of the battery pack mounting space 26. Battery pack mounting device, characterized in that.
청구항 1 또는 청구항 5에 있어서,
상기 배터리 팩 장착 공간(26)내에 배치되는 배터리팩(30)은 그 상단부가 사이드 멤버(12) 및 크로스 멤버(14)의 저면에 조립 고정되어, 배터리팩(30)의 저면이 배터리 팩 장착공간(26)의 바닥면으로부터 이격되어 공기 흐름을 위한 공간으로 형성되도록 한 것을 특징으로 하는 배터리팩 마운팅 장치.
The method according to claim 1 or 5,
The battery pack 30 disposed in the battery pack mounting space 26 has an upper end thereof assembled and fixed to the bottom of the side member 12 and the cross member 14, and the bottom surface of the battery pack 30 has a battery pack mounting space. Battery pack mounting device, characterized in that spaced from the bottom of the 26 to form a space for the air flow.
KR1020120028047A 2012-03-20 2012-03-20 Device for mounting battery pack KR101896704B1 (en)

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CN109421503A (en) * 2017-08-28 2019-03-05 北京华田汽车科技有限公司 A kind of chassis crossrail runs through the battery system structure of battery pack
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CN112793423A (en) * 2019-11-14 2021-05-14 现代自动车株式会社 Battery pack mounting module that moves downward in the event of a side collision of a vehicle

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KR20200104515A (en) 2019-02-27 2020-09-04 주식회사 보은금속 Support member for battery pack case
KR20210119717A (en) 2020-03-25 2021-10-06 이양화 Profile-only processing device for battery pack mounting devices

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US20160137046A1 (en) * 2014-11-13 2016-05-19 Hyundai Motor Company Trunk room mounting structure of hybrid vehicle
US10044079B2 (en) 2015-08-12 2018-08-07 Hyundai Motor Company High voltage battery
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CN109941083B (en) * 2017-12-20 2023-08-25 株式会社斯巴鲁 Battery pack protection structure for vehicle and vehicle provided with same
CN112793423A (en) * 2019-11-14 2021-05-14 现代自动车株式会社 Battery pack mounting module that moves downward in the event of a side collision of a vehicle
CN112793423B (en) * 2019-11-14 2024-03-19 现代自动车株式会社 Battery pack mounting module that moves downward upon side collision of vehicle

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