WO2011078245A1 - 連結構造 - Google Patents
連結構造 Download PDFInfo
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- WO2011078245A1 WO2011078245A1 PCT/JP2010/073179 JP2010073179W WO2011078245A1 WO 2011078245 A1 WO2011078245 A1 WO 2011078245A1 JP 2010073179 W JP2010073179 W JP 2010073179W WO 2011078245 A1 WO2011078245 A1 WO 2011078245A1
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- WIPO (PCT)
- Prior art keywords
- pair
- clips
- clip
- engaging
- engagement
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
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- 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
- Power storage systems such as hybrid cars and electric cars are composed of a set of modules that house livestock battery cells.
- the collected modules are finally fixed by passing bolts or the like to each module, but it is required to connect adjacent modules before final fixing.
- Patent Document 1 discloses a frame (module) that houses a livestock battery cell in which a fitting protrusion of each frame is fitted into a fitting recess. Although there are some which are shown by patent documents 2 as what forms a clearance by interposing a spacer between each module, connection of modules prior to the above-mentioned final fixation is not taken into consideration.
- JP 2005-268004 A Japanese Patent Laid-Open No. 2006-147531
- a connection structure is a structure in which a power storage system is configured by connecting modules in which power storage cells are housed in a case, A pair of clips provided with a first engagement portion for the other clip of the pair and a second engagement portion for the case of the module; From the state in which the pair of clips are engaged with the first engaging portion, the second engaging portions of the pair of clips are engaged with the corresponding cases, respectively, and adjacent modules are connected. It is assumed that the engagement of the first engagement portion is released when the connected modules are separated by a predetermined force.
- connection structure adjacent modules can be connected and combined with each other with a pair of clips engaged and combined with the first engagement portion. Further, this connected state can be easily released by performing the separation operation on the module. Thereby, replacement of some modules constituting the power storage system can be easily performed.
- the case of this type of module is thin and fragile. By first disengaging the first engaging portion by the separation operation, the module is connected to the case side of the module when releasing the connection. It is possible to prevent deformation and breakage as much as possible.
- the formation location of the 1st engaging part interposed between this adjacent module can be comprised as thinly as possible, connecting an adjacent module appropriately by engagement of the 1st engaging part.
- the urging force of the urging means it is possible to easily adjust the engaging force between the first engaging portions of the pair of clips, that is, the connection strength between adjacent modules.
- each clip can be smoothly rotated in the direction to release the engagement of the first engagement portion with the inclined surfaces that come into contact with each other by the separation operation.
- the rotation center in two opposing areas among four areas divided by a virtual first straight line that passes through the rotation center of the clip and a virtual second straight line that intersects the first straight line at the rotation center. While forming the overhanging part that projects from the side, A first engagement portion is formed at each of the edges along the first straight line of the two overhang portions, An elastic piece serving as a biasing means is projected from an edge portion along the second straight line in one of the two overhang portions, The edge portion along the second straight line at the other of the two protruding portions may be a contacted portion with respect to the elastic piece of the other clip forming the pair.
- the pair of clips may be engaged with the first engagement portion with a spacer interposed between adjacent modules.
- each of the pair of clips is provided with a clamping portion outside the position where the first engaging portion is engaged in the through hole of the spacer.
- the second engagement formed on the leg by inserting the leg into the mounting hole of the corresponding module from the state where the clip is attached to the spacer with the spacer sandwiched between the pair of clips.
- the module can be engaged with the module side and the adjacent modules can be connected with a spacer interposed.
- the modules constituting the power storage system can be easily and appropriately connected prior to final fixing. Further, by separating the connected modules, the pair of clips engaging the first engaging portion can be separated to separate the modules from each other. This can be done without causing damage.
- FIG. 1 is a perspective view showing a state in which adjacent modules are separated from a spacer to which a clip is attached.
- FIG. 2 is a cross-sectional view of the main part of the connection structure.
- 3 (a) and 3 (b) are perspective views of a pair of clips in which the first engaging portion is not engaged, and FIG. 3 (b) shows the pair of clips viewed from a different direction from FIG. 3 (a). It shows. 4 (a) and 4 (b) are perspective views showing a pair of clips engaged with the first engaging portion with the spacers omitted, and FIG. 4 (b) is different from FIG. 4 (a). A pair of such clips is seen from the direction.
- FIG. 1 is a perspective view showing a state in which adjacent modules are separated from a spacer to which a clip is attached.
- FIG. 2 is a cross-sectional view of the main part of the connection structure.
- 3 (a) and 3 (b) are perspective views of a pair of clips in which the first engaging portion is
- FIG. 5 is a plan view showing a pair of clips engaged with the first engaging portion, omitting the description of the spacers.
- FIG. 6 shows a pair of clips that are slightly rotated in a direction to release the engagement of the first engaging portion by separating the modules coupled together via the pair of clips, omitting the description of the spacers. It is a top view.
- FIG. 7 is a plan view of the clip.
- FIG. 8 is a bottom view of the clip.
- FIG. 9 is a side view of the clip.
- FIG. 10 is a side view of the clip viewed from a different direction from FIG. 11 is a cross-sectional view taken along line AA in FIG. 12 is a cross-sectional view taken along line BB in FIG.
- the module M has a configuration in which the power storage cells are housed in a flat case Ma in which the wide front surface Mb and the back surface Mc have a substantially rectangular shape.
- a large diameter round hole Md is formed at each of the four corners of the front surface Mb and the back surface Mc of the case Ma, and a mounting hole Me having a smaller diameter is formed slightly inward of the position where the circular hole Md is formed. Is drilled.
- adjacent modules M and M are stacked in the vertical direction with the wide surfaces Mb and Mc of the case Ma facing each other and the sides of the wide surfaces Mb and Mc are aligned. Alternatively, they are connected to the left and right in parallel.
- a spacer S is interposed between the adjacent modules M and M.
- the spacer S is configured to have an elongated plate shape having a length that fits within the width of the wide surfaces Mb and Mc of the case Ma.
- One surface of the spacer S is in contact with one of the adjacent modules M and M, and the other surface is in contact with the other of the adjacent modules M and M, so that a gap corresponding to the thickness of the spacer S is between the adjacent modules M and M.
- bosses Sa projecting in a direction orthogonal to the plate surface of the spacer S are formed on both surfaces of the spacer S.
- the boss portions Sa are inserted into the two round holes Md, and the spacers S are arranged along the short sides.
- the boss portion Sa on one side of the spacer S is inserted into one of the round holes Md of the adjacent modules M and M, and the boss portion Sa on the other side of the spacer S is inserted into the other round hole Md of the adjacent modules M and M. It is inserted.
- the plurality of modules M, M... Connected in this way are finally fixed by bolts (not shown) passed through the round holes Md of the respective modules M and the boss portions Sa of the spacers S.
- adjacent modules M and M are connected to each other by a pair of clips C and C prior to the main fastening.
- the pair of clips C and C are configured to engage a first engagement portion 3 described later with the spacer S interposed between adjacent modules M and M interposed therebetween.
- Each of the pair of clips C and C includes a leg portion 2 that is inserted through the mounting hole Me of the module M on the side opposite to the first engaging portion 3. By inserting the portion 2 into the mounting hole Me of the corresponding module M, the second engagement portion 4 described later formed in the leg portion 2 is engaged with the module M side, and the adjacent modules M and M are separated by the spacer S. It is made to connect in the state which intervened.
- a through hole Sb for accommodating the formation position of the first engagement portion 3 of the clip C is formed between the pair of bosses Sa and Sa in the spacer S.
- the spacer S is clamped by engaging the first engagement portion 3 in the through hole Sb.
- a clamping part 1g that does not enter the through hole Sb is formed outside the formation position of the first engagement part 3 in the clip C, and the clamping part 1g with which the pair of clips C and C is applied.
- the spacer S is sandwiched between them.
- the adjacent modules M and M can be connected and combined with the pair of clips C and C that are combined by engaging the first engagement portion 3. Further, this connected state can be easily released by operating the module M to be separated. Thereby, replacement
- the second engaging portions 4 in the pair of clips C and C are respectively formed on the leg portions 2 that are inserted into the mounting holes Me of the case Ma.
- the pair of clips C and C are centered on the leg portion 2, in other words, the first engagement with the mounting hole Me as a bearing. It rotates so as to release the engagement of the portion 3.
- the adjacent modules M and M are interposed between the adjacent modules M and M while being appropriately connected by the engagement of the first engagement portion 3.
- the first engagement portion 3 can be formed as thin as possible. Further, by changing the urging force of the urging means 5, the engagement force between the first engagement portions 3 of the pair of clips C, C, that is, the strength of the connection between the adjacent modules M, M can be easily adjusted. can do.
- each of the clips C can be smoothly rotated in the direction in which the first engagement portion 3 is disengaged with the inclined surfaces 3a that come into contact with each other by the separation operation.
- the leg 2 is configured such that, on the back surface 1b of the head 1, one end is integrally connected to the center of the head 1 and protrudes in a direction perpendicular to the back 1b.
- the leg 2 has a thickness that allows the leg 2 to be inserted into the mounting hole Me, and the head 1 has a size that does not enter the mounting hole Me.
- the head 1 is generally plate-shaped and is formed so that the plate surface is arranged in a direction perpendicular to the central axis x of the leg 2.
- the leg 2 is configured as a cylindrical body with the other end closed. Second engaging portions 4 are formed at opposing positions across the center axis x of the leg portion 2.
- Each of the second engaging portions 4 has two split grooves 2a, 2a along the central axis x of the leg portion 2, and the central axis x extending between the groove ends on the head 1 side in the two split grooves 2a, 2a. Is formed by forming a bulging portion on the outer surface portion of the elastic piece 2c divided by the split groove 2b oriented in a direction perpendicular to the vertical direction.
- the second engaging portion 4 has an engaging surface 4a facing the head 1 side, and an inclined surface 4c between the base portion of the elastic piece 2c and its top portion 4b. The distance between the top portions 4b of the pair of second engaging portions 4, 4 is slightly larger than the hole diameter of the mounting hole Me.
- the distance between the engagement surface 4a and the back surface 1b of the head 1 is substantially the same as or slightly larger than the thickness of the case Ma of the module M. Accordingly, in this embodiment, the insertion of the leg portion 2 of the clip C from the outside of the case Ma into the mounting hole Me of the case Ma of the module M is performed on the inclined surface 4c toward the mounting hole Me.
- the elastic piece 2c is allowed to be bent due to the sliding contact, and the elastic piece 2c at the insertion end position where the top portion 4b of the second engaging portion 4 enters the hole edge of the mounting hole Me inside the case Ma.
- the clip C is engaged with the module M by sandwiching the case Ma from the inside and outside between the second engaging portion 4 and the head 1 by the bending back.
- the head 1 includes a central portion 1c formed in a virtual first circle (not shown) and overhang portions 1d formed on both sides in the diameter direction of the central portion 1c.
- the outer edge 1e of the projecting portion 1d is along an arc of a virtual second circle r having a diameter larger than that of the first circle.
- An arc of a virtual third circle r ′ having a diameter larger than that of the first circle and smaller than that of the second circle r is formed on the surface portion of the projecting portion 1d constituting the surface 1a of the head 1.
- Ribs 1f are formed.
- the virtual third circle r ′ is substantially equal to the hole diameter of the through hole Sb of the spacer S, and the head 1 is allowed to enter the inside of the through hole Sb including the rib 1f. ing. Between the rib 1f and the outer edge 1e in the projecting portion 1d is the clamping portion 1g. An elongated hole 1h is formed in the central portion 1c, and the elongated hole 1h communicates with the inside of the leg portion 2 at the central portion.
- the projecting portion 1d is formed by a rotation center of the clip C, that is, a virtual first straight line L passing through the center of the center portion 1c and a virtual second straight line L ′ that intersects the first straight line L at the rotation center. It is formed so as to project from the rotation center side, that is, from the central portion 1c, in two opposed regions of the divided four regions.
- the 1st engaging part 3 is each formed in the edge part 1i along the said 1st straight line L of the two overhang
- An elastic piece 5a serving as the urging means 5 is projected from the edge 1j along the second straight line L 'in one of the two overhanging portions 1d,
- An edge portion 1j along the second straight line L ′ at the other of the two overhanging portions 1d serves as a contacted portion 6 with respect to the elastic piece 5a of the other clip C forming a pair.
- the first engaging portion 3 is configured to have a claw shape protruding from the edge portion 1i along the arc of the virtual third circle r '.
- the first engagement portion 3 is continuous with the rib 1f.
- the first engaging portion 3 has a surface portion forming a part of the surface 1a of the head portion 1 as a surface orthogonal to the central axis x of the leg portion 2, and a surface on the opposite side as the inclined surface 3a.
- the thickness dimension is made smaller toward the protruding end.
- the elastic piece 5a has a bent portion between an outer arm portion 5b protruding from the edge portion 1j along the arc of the virtual second circle r and an end portion of the outer arm portion 5b.
- An inner arm portion 5c extending toward the center portion 1c and a rod-like contact portion 5d protruding from the surface portion at the end of the inner arm portion 5c in a direction along the central axis x are provided.
- the elastic piece 5a has a front surface portion constituting the front surface 1a of the head 1 and a back surface portion constituting the back surface 1b.
- the rod-shaped contact portion 5d of the elastic piece 5a and the edge portion 1i where the first engagement portion 3 is formed in the overhanging portion 1d not provided with the elastic piece 5a The distance d1 between the first engagement portion 3 and the contacted portion 6 in the overhanging portion 1d not provided with the elastic piece 5a is substantially equal to the distance d2 between the protruding portion 1d and the contacted portion 6. Yes. Further, the distance between the abutted portion 6 in the overhanging portion 1d not provided with the elastic piece 5a and the edge portion 1i where the first engaging portion 3 is formed in the overhanging portion 1d provided with the elastic piece 5a. d3 substantially coincides with the distance d4 between the rod-like contact portion 5d of the elastic piece 5a and the protruding end of the first engaging portion 3 in the overhanging portion 1d provided with the elastic piece 5a. Yes. (Fig. 8)
- the formation side of one first engagement portion 3 of the pair of clips C and C is abutted with the formation side of the other first engagement portion 3, and the elastic piece
- the first engagement portion 3 of the other clip C enters the lower portion of the first engagement portion 3 of the other clip C while the elastic member 5a is brought into contact with the contacted portion 6 and is elastically deformed.
- the respective clips C are slightly rotated so that the respective first engaging portions 3 enter the corresponding first engaging portions 3 and engage with each other. Be able to. (FIG. 4 (a) (b), FIG. 5)
- the coupling structure can be configured by combining two clips C of the same size and shape.
- each clip C When the separation operation is performed from the state in which the adjacent modules M and M are connected by the clip C (FIG. 5), the elastic piece 5a is elastically deformed by the inclined surface 3a with which the first engagement portion 3 contacts.
- Each clip C is rotated in the direction in which the engagement of the one engagement portion 3 is released.
- FIG. 6 Specifically, when this separation operation is performed, each clip C rotates in the direction opposite to the other clip C with the base of the leg 2 in the mounting hole Me as a shaft and the mounting hole Me as a bearing. Move.
- the clip C is rotated from below the first engaging portion 3 of one of the two clips C to the rotating position where the other first engaging portion 3 is pulled out, the first engaging portion 3 is disengaged.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Clamps And Clips (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
Description
対をなす他方のクリップに対する第一係合部と、モジュールのケースに対する第二係合部とを備えた一対のクリップを備えており、
第一係合部をもって一対のクリップを係合させた状態からこの一対のクリップの第二係合部をそれぞれ対応する前記ケースに係合させて隣り合うモジュールを連結させるようになっていると共に、
連結させたモジュールを所定の力で離隔操作したときに、第一係合部の係合が解除されるようになっているものとした。
二箇所の張り出し部のうちの前記第一直線に沿った縁部にそれぞれ第一係合部を形成させ、
二箇所の張り出し部の一方における前記第二直線に沿った縁部から付勢手段となる弾性片を突設させ、
二箇所の張り出し部の他方における前記第二直線に沿った縁部を対をなす他方のクリップの弾性片に対する被当接部とするようにしておくこともある。
二箇所の張り出し部1dの一方における前記第二直線L’に沿った縁部1jから付勢手段5となる弾性片5aが突設され、
二箇所の張り出し部1dの他方における前記第二直線L’に沿った縁部1jが対をなす他方のクリップCの弾性片5aに対する被当接部6となっている。
2009年12月24日に出願された日本国特願第2009-292022号の明細書、特許請求の範囲、図面及び要約書の全内容をここに引用し、本発明の明細書の開示として、取り入れるものである。
Claims (7)
- 蓄電体セルをケースに納めてなるモジュールを連結させて蓄電システムを構成させる構造であって、
対をなす他方のクリップに対する第一係合部と、モジュールのケースに対する第二係合部とを備えた一対のクリップを備えており、
第一係合部をもって一対のクリップを係合させた状態からこの一対のクリップの第二係合部をそれぞれ対応する前記ケースに係合させて隣り合うモジュールを連結させるようになっていると共に、
連結させたモジュールを所定の力で離隔操作したときに、第一係合部の係合が解除されるようになっていることを特徴とする連結構造。 - 一対のクリップにおける第二係合部はそれぞれ、ケースの取付穴に差し込まれる脚部に形成されていると共に、
連結させたモジュールを所定の力で離隔操作したときに、一対のクリップがそれぞれ前記脚部を中心にして第一係合部の係合を解く向きに回動するようになっていることを特徴とする請求項1に記載の連結構造。 - 一対のクリップは、一方のクリップの第一係合部と他方のクリップの第一係合部とをクリップの回動軸線方向において重ね合わせて係合させるようになっていると共に、
一対のクリップはそれぞれ、この重ね合わせを維持する向きに他方のクリップを付勢可能とする付勢手段を備えていることを特徴とする請求項2に記載の連結構造。 - 一対のクリップにおける第一係合部はそれぞれ、第二係合部側に向いた傾斜面を備えており、係合状態において互いの傾斜面を接し合わせるようになっていることを特徴とする請求項3に記載の連結構造。
- クリップの回動中心を通る仮想の第一直線とこの回動中心において前記第一直線に交叉する仮想の第二直線とによって区分された四つの領域のうちの対向する二つの領域に前記回動中心側から張り出す張り出し部が形成されていると共に、
二箇所の張り出し部のうちの前記第一直線に沿った縁部にそれぞれ第一係合部が形成され、
二箇所の張り出し部の一方における前記第二直線に沿った縁部から付勢手段となる弾性片が突設され、
二箇所の張り出し部の他方における前記第二直線に沿った縁部が対をなす他方のクリップの弾性片に対する被当接部となっていることを特徴とする請求項3又は請求項4に記載の連結構造。 - 一対のクリップが隣り合うモジュール間に介在されるスペーサを挟んで第一係合部を係合させるようになっていることを特徴とする請求項1~請求項5のいずれか1項に記載の連結構造。
- 一対のクリップがそれぞれ、スペーサの貫通穴内で係合し合う第一係合部の形成位置よりも外側に挟持部を備えていることを特徴とする請求項1~請求項6のいずれか1項に記載の連結構造。
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DE112010004997T DE112010004997T5 (de) | 2009-12-24 | 2010-12-22 | Verbindungsstruktur |
US13/516,903 US20120308866A1 (en) | 2009-12-24 | 2010-12-22 | Connection structure |
CN2010800590988A CN102668169A (zh) | 2009-12-24 | 2010-12-22 | 连结构造 |
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JP2009-292022 | 2009-12-24 | ||
JP2009292022A JP2011134541A (ja) | 2009-12-24 | 2009-12-24 | 連結構造 |
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JP (1) | JP2011134541A (ja) |
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WO2012036072A1 (ja) * | 2010-09-17 | 2012-03-22 | 株式会社ニフコ | 蓄電システムを構成するモジュールを連結させるための連結構造 |
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TWI487455B (zh) * | 2012-04-02 | 2015-06-01 | Wistron Corp | 殼體結構及其固定件及具有該殼體結構的顯示裝置 |
KR101818514B1 (ko) * | 2015-01-16 | 2018-02-21 | 주식회사 엘지화학 | 체결용 클립을 포함하는 전지모듈 |
KR102065103B1 (ko) * | 2016-11-04 | 2020-01-10 | 주식회사 엘지화학 | 배터리 팩 |
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Also Published As
Publication number | Publication date |
---|---|
CN102668169A (zh) | 2012-09-12 |
JP2011134541A (ja) | 2011-07-07 |
US20120308866A1 (en) | 2012-12-06 |
DE112010004997T5 (de) | 2013-01-10 |
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