JP2013187101A - Refrigerant passage formation structure between battery cases - Google Patents

Refrigerant passage formation structure between battery cases Download PDF

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JP2013187101A
JP2013187101A JP2012052582A JP2012052582A JP2013187101A JP 2013187101 A JP2013187101 A JP 2013187101A JP 2012052582 A JP2012052582 A JP 2012052582A JP 2012052582 A JP2012052582 A JP 2012052582A JP 2013187101 A JP2013187101 A JP 2013187101A
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refrigerant passage
battery
passage forming
battery cases
forming member
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Tomotaka Osakabe
友敬 刑部
Ryogo Murayama
僚悟 村山
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Kojima Industries Corp
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Kojima Press Industry Co Ltd
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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

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Abstract

PROBLEM TO BE SOLVED: To provide a refrigerant passage formation structure between battery cases, advantageous in cost as compared with conventional ones.SOLUTION: (1) A refrigerant passage formation structure 10 between battery cases includes: two battery cases 21 and 22 adjacent with each other among a plurality of layered square metallic battery cases 20; and a refrigerant passage formation member 30 provided between the two battery cases 21 and 22 and forming a refrigerant passage P between the two battery cases 21 and 22. The refrigerant passage formation member 30 is formed as a separate body from the two battery cases 21 and 22, and fixed to a first battery case 21 of one of the two battery cases 21 and 22.

Description

本発明は、積層される複数の角型の電槽（電池ケース）のうちの互いに隣り合う２つの電槽間に冷媒通路を形成する、電槽間冷媒通路形成構造に関する。   The present invention relates to an inter-battery refrigerant passage forming structure in which a refrigerant passage is formed between two adjacent battery cases among a plurality of rectangular battery cases (battery cases) to be stacked.

特開２０１１−１１３７０６号公報は、積層される複数の角型の電槽（電池ケース）のうちの互いに隣り合う２つの電槽間に冷媒通路を形成するために、２つの電槽間に冷媒通路形成部材（樹脂枠）を配置する電槽間冷媒通路形成構造を開示している。上記公報開示の構造では、２つの電槽間に配置される冷媒通路形成部材は、２つの電槽とは別体であり、２つの電槽のいずれにも固定されていない。 Japanese Patent Application Laid-Open No. 2011-113706 discloses a refrigerant between two battery cases in order to form a refrigerant passage between two adjacent battery cases among a plurality of stacked rectangular battery cases (battery cases). An inter-bath refrigerant passage forming structure in which a passage forming member (resin frame) is arranged is disclosed. In the structure disclosed in the above publication, the refrigerant passage forming member disposed between the two battery cases is separate from the two battery cases and is not fixed to any of the two battery cases.

しかし、従来の電槽間冷媒通路形成構造には、つぎの問題点がある。
冷媒通路形成部材が２つの電槽のいずれにも固定されていないため、複数の電槽を積層する際に各電槽間に冷媒通路形成部材を配置させる作業が必要である。そのため、複数の電槽を積層させるのに要する工数が多くなり、コスト上不利である。 However, the conventional inter-bath refrigerant passage forming structure has the following problems.
Since the refrigerant path forming member is not fixed to any of the two battery cases, it is necessary to arrange the refrigerant path forming member between the battery cases when stacking a plurality of battery cases. Therefore, the man-hour required for laminating a plurality of battery cases increases, which is disadvantageous in terms of cost.

特開２０１１−１１３７０６号公報JP 2011-113706 A

本発明の目的は、従来に比べて、コスト上有利な電槽間冷媒通路形成構造を提供することにある。   An object of the present invention is to provide an inter-bath refrigerant passage forming structure which is advantageous in terms of cost as compared with the conventional art.

上記目的を達成する本発明はつぎの通りである。
（１） 積層される複数の角型の金属製電槽のうちの、互いに隣り合う２つの電槽と、
前記２つの電槽間に設けられ、前記２つの電槽間に冷媒通路を形成する冷媒通路形成部材と、
を有し、
前記冷媒通路形成部材は、前記２つの電槽と別体に形成されており、前記２つの電槽の一方の電槽である第１の電槽に固定されている、電槽間冷媒通路形成構造。
（２） 前記冷媒通路形成部材は、型成形品であり、前記冷媒通路形成部材を成形する成形型のキャビティに、該キャビティを前記第１の電槽に接触させた状態で、溶融樹脂を流し込んで冷却固化させることで、前記第１の電槽に接着固定される、（１）記載の電槽間冷媒通路形成構造。 The present invention for achieving the above object is as follows.
(1) Two adjacent battery cases among a plurality of stacked rectangular metal battery cases,
A refrigerant passage forming member provided between the two battery cases and forming a refrigerant passage between the two battery cases;
Have
The refrigerant passage forming member is formed separately from the two battery cases, and is fixed to a first battery case that is one of the two battery cases. Construction.
(2) The refrigerant passage forming member is a molded product, and molten resin is poured into a cavity of a molding die for forming the refrigerant passage forming member in a state where the cavity is in contact with the first battery case. The inter-battery refrigerant passage forming structure according to (1), which is bonded and fixed to the first battery case by being cooled and solidified in step (b).

上記（１）の電槽間冷媒通路形成構造によれば、つぎの効果を得ることができる。
冷媒通路形成部材が、２つの電槽の一方の電槽である第１の電槽に固定されるため、複数の電槽を積層する際に各電槽間に冷媒通路形成部材を配置させる作業は不要である。そのため、従来に比べて、複数の電槽を積層させるのに要する工数が減り、コスト上有利である。 According to the inter-battery refrigerant passage forming structure of (1) above, the following effects can be obtained.
Since the refrigerant passage forming member is fixed to the first battery case, which is one of the two battery cases, the refrigerant passage forming member is disposed between the battery cases when the plurality of battery cases are stacked. Is unnecessary. Therefore, compared with the prior art, the number of steps required to stack a plurality of battery cases is reduced, which is advantageous in terms of cost.

上記（２）の電槽間冷媒通路形成構造によれば、つぎの効果を得ることができる。
冷媒通路形成部材が、冷媒通路形成部材を成形する成形型のキャビティに、キャビティを第１の電槽に接触させた状態で、溶融樹脂を流し込んで冷却固化させることで、第１の電槽に接着固定されるため、冷媒通路形成部材を成形と同時に第１の電槽に固定できる。そのため、冷媒通路形成部材を冷媒通路形成部材が固定される第１の電槽と別体に形成する場合であっても、冷媒通路形成部材を第１の電槽に固定するための接着材等を不要にでき、接着剤等を要する場合に比べてコスト低減できる。 According to the inter-battery refrigerant passage forming structure of (2) above, the following effects can be obtained.
The refrigerant passage forming member is poured into the cavity of the molding die for forming the refrigerant passage forming member, and the molten resin is poured into the cavity of the first battery case to be cooled and solidified. Since it is bonded and fixed, the coolant passage forming member can be fixed to the first battery case at the same time as molding. Therefore, even when the refrigerant passage forming member is formed separately from the first battery case to which the refrigerant passage forming member is fixed, an adhesive for fixing the refrigerant passage forming member to the first battery case, etc. The cost can be reduced as compared with the case where an adhesive or the like is required.

本発明実施例の電槽間冷媒通路形成構造の、複数の電槽を積層した状態の概略断面図である。It is a schematic sectional drawing of the state which laminated | stacked the several battery case of the refrigerant path formation structure between battery cases of this invention Example. 図１の分解図である。FIG. 2 is an exploded view of FIG. 1. 本発明実施例の電槽間冷媒通路形成構造の、互いに隣り合う２つの電槽と、冷媒通路形成部材とを示す、分解斜視図である。It is a disassembled perspective view which shows two adjacent battery cases and a refrigerant path formation member of the refrigerant path formation structure between battery cases of the Example of this invention. 本発明実施例の電槽間冷媒通路形成構造の変形例の、互いに隣り合う２つの電槽と、冷媒通路形成部材とを示す、分解斜視図である。It is a disassembled perspective view which shows two mutually adjacent battery cases and a refrigerant path formation member of the modification of the refrigerant path formation structure between battery cases of this invention Example. 本発明実施例の電槽間冷媒通路形成構造の、冷媒通路形成部材を成形する成形型および治具と、第１の電槽との、冷媒通路形成部材を成形する成形型のキャビティに溶融樹脂を流し込んでいない状態の、部分断面図である。The molten resin is formed in the cavity of the molding die for forming the refrigerant passage forming member of the first battery case and the molding die and the jig for forming the refrigerant passage forming member of the inter-battery refrigerant passage forming structure of the embodiment of the present invention. It is a fragmentary sectional view in the state where it is not poured. 図５の状態から冷媒通路形成部材を成形する成形型のキャビティに溶融樹脂を流し込み充填させたときの、部分断面図である。FIG. 6 is a partial cross-sectional view when the molten resin is poured and filled into a cavity of a molding die for molding the refrigerant passage forming member from the state of FIG. 5.

以下に、本発明実施例の電槽間冷媒通路形成構造を、図面を参照して説明する。
本発明実施例の電槽間冷媒通路形成構造（電槽間冷媒通路形成装置）１０は、図３に示すように、積層される複数の電槽（電池ケース）２０のうちの互いに隣り合う２つの電槽２１，２２と、２つの電槽２１，２２間に設けられ２つの電槽２１，２２間に冷媒通路Ｐ（図１参照）を形成する冷媒通路形成部材３０と、を有する。なお、積層される複数の電槽２０のうちの互いに隣り合う２つの電槽２１，２２の選び方は、任意である。また、冷媒通路Ｐを流れる冷媒は、たとえば気体であり空気である。 Below, the inter-battery refrigerant passage forming structure of the embodiment of the present invention will be described with reference to the drawings.
The inter-battery refrigerant passage forming structure (inter-battery refrigerant passage forming apparatus) 10 according to the embodiment of the present invention, as shown in FIG. 3, is adjacent to each other among a plurality of stacked battery cases (battery cases) 20. And a refrigerant passage forming member 30 provided between the two battery cases 21 and 22 and forming a refrigerant passage P (see FIG. 1) between the two battery cases 21 and 22. In addition, the method of selecting the two battery cases 21 and 22 adjacent to each other among the plurality of battery cases 20 to be stacked is arbitrary. The refrigerant flowing through the refrigerant passage P is, for example, gas and air.

各電槽２０は、角型電池に用いられる電槽であり、角型である。各電槽２０は、幅の狭い短側面２０ａと、幅の広い長側面２０ｂと、を有する直方体状である。複数の電槽２０は、各電槽２０の長側面２０ｂ同士が対向するようにして積層される。各電槽２０は、金属製材料で構成されており、たとえばアルミニウム製である。各電槽２０は、たとえばインパクト成形（後方押出成形）にて成形される。ただし、各電槽２０の成形は、絞り成形など、別の成形方法にて成形されていてもよい。
各電槽２０内には、正極板と負極板とをセパレータを介して積層してなる極板群（図示略）と、電解液（図示略）とが、収納される。 Each battery case 20 is a battery case used for a square battery, and is square. Each battery case 20 has a rectangular parallelepiped shape having a narrow short side surface 20a and a wide long side surface 20b. The plurality of battery cases 20 are stacked such that the long side surfaces 20b of the battery cases 20 face each other. Each battery case 20 is made of a metal material, and is made of, for example, aluminum. Each battery case 20 is formed by, for example, impact molding (rear extrusion molding). However, each battery case 20 may be formed by another forming method such as drawing.
In each battery case 20, an electrode plate group (not shown) formed by laminating a positive electrode plate and a negative electrode plate via a separator and an electrolyte solution (not shown) are accommodated.

冷媒通路形成部材３０は、樹脂製であり型成形品である。冷媒通路形成部材３０は、絶縁材からなる。冷媒通路形成部材３０が絶縁材からなるため、各電槽２０が金属製であっても、隣り合う２つの電槽２１，２２に何らかの原因で電位差があるときに２つの電槽２１，２２間で電流が流れ２つの電槽２１，２２に腐食が生じることを抑制することができる。   The refrigerant passage forming member 30 is made of resin and is a molded product. The refrigerant passage forming member 30 is made of an insulating material. Since the refrigerant passage forming member 30 is made of an insulating material, even when each battery case 20 is made of metal, when there is a potential difference between the two adjacent battery cases 21 and 22 for some reason, the space between the two battery cases 21 and 22 Therefore, it is possible to suppress the occurrence of corrosion in the two battery cases 21 and 22 through the flow of current.

冷媒通路形成部材３０は、たとえば、液晶ポリマー（ＬＣＰ（Liquid Crystal Polymer））、ポリエステル系のホットメルト材、接着性の良好な変性ＰＰ（ポリプロピレン）、接着性の良好な変性ＰＥ（ポリエチレン）など、からなる。   The coolant passage forming member 30 includes, for example, a liquid crystal polymer (LCP (Liquid Crystal Polymer)), a polyester-based hot melt material, modified PP (polypropylene) with good adhesion, modified PE (polyethylene) with good adhesion, Consists of.

冷媒通路形成部材３０は、隣り合う２つの電槽２１，２２とは別体に形成される。冷媒通路形成部材３０は、隣り合う２つの電槽２１，２２の一方の電槽である第１の電槽２１に固定され、隣り合う２つの電槽２１，２２の他方である第２の電槽２２に固定されず当接する。冷媒通路形成部材３０は、第１の電槽２１の第２の電槽２２に対向する面に固定され、第２の電槽２２の第１の電槽２１に対向する面に当接する。   The refrigerant passage forming member 30 is formed separately from the two adjacent battery cases 21 and 22. The refrigerant passage forming member 30 is fixed to the first battery case 21 that is one battery case of the two adjacent battery cases 21 and 22, and the second battery that is the other of the two adjacent battery cases 21 and 22. The tank 22 abuts without being fixed. The refrigerant passage forming member 30 is fixed to the surface of the first battery case 21 that faces the second battery case 22 and abuts on the surface of the second battery case 22 that faces the first battery case 21.

冷媒通路形成部材３０は、第１の電槽２１に少なくとも１個設けられる。各冷媒通路形成部材３０の形状は、特に限定するものではないが、（ｉ）第１の電槽２１から第２の電槽２２側に突出する円柱状であってもよく、（ｉｉ）直線状または少なくとも１つの湾曲部または屈曲部を有して延びる長尺板状であってもよく、（ｉｉｉ）上記（ｉ）または上記（ｉｉ）の形状に加えてさらに第１の電槽２１の第２の電槽２２に対向する面と平行な平板状部を備える複合形状であってもよく、（ｖｉ）その他の形状であってもよい。なお、図３は、複数の冷媒通路形成部材３０の一部が円柱状（上記（ｉ））であり、複数の冷媒通路形成部材３０の残りが長尺板状（上記（ｉｉ））である場合を示しており、図４は、複数の冷媒通路形成部材３０のすべてが長尺板状（上記（ｉｉ））である場合を示している。   At least one refrigerant passage forming member 30 is provided in the first battery case 21. The shape of each refrigerant passage forming member 30 is not particularly limited, but may be (i) a columnar shape protruding from the first battery case 21 to the second battery case 22 side, and (ii) a straight line Or a long plate extending with at least one curved portion or bent portion. (Iii) In addition to the shape of (i) or (ii) above, the first battery case 21 A composite shape including a flat plate-like portion parallel to the surface facing the second battery case 22 may be used, and (vi) other shapes may be used. In FIG. 3, a part of the plurality of refrigerant passage forming members 30 has a cylindrical shape (the above (i)), and the rest of the plurality of refrigerant passage forming members 30 has a long plate shape (the above (ii)). FIG. 4 shows a case where all of the plurality of refrigerant passage forming members 30 have a long plate shape (above (ii)).

冷媒通路形成部材３０は、（ａ）図５、図６に示すように、冷媒通路形成部材３０を成形する成形型４０のキャビティ４１を成形後の第１の電槽２１に接触させた状態で、キャビティ４１に溶融樹脂Ｒを流し込んで冷却固化させることで、成形後の第１の電槽２１に直接成形され固定（接着固定）される。すなわち、冷媒通路形成部材３０は、第１の電槽２１に「ダイレクト成形」される。
ただし、冷媒通路形成部材３０は、成形後、（ｂ）第１の電槽２１に接着剤等の別部材を用いて固定して取付けられていてもよく、（ｃ）第１の電槽２１に図示略のあり溝またはあり溝と同様の作用を得られる溝を設け，該第１の電槽２１の溝に引っ掛けることで固定されていてもよい。 As shown in FIGS. 5 and 6, the refrigerant passage forming member 30 is in a state where the cavity 41 of the molding die 40 for molding the refrigerant passage forming member 30 is in contact with the first battery case 21 after molding. Then, the molten resin R is poured into the cavity 41 and cooled and solidified, so that it is directly molded and fixed (adhesion-fixed) to the first battery case 21 after molding. That is, the refrigerant passage forming member 30 is “directly molded” in the first battery case 21.
However, the refrigerant passage forming member 30 may be fixed and attached to the first battery case 21 by using another member such as an adhesive after the molding, (c) the first battery case 21. May be fixed by being hooked on a groove of the first battery case 21 and provided with a groove which is not shown in the drawing or a groove capable of obtaining the same action as the groove.

冷媒通路形成部材３０が上記（ａ）の方法にて第１の電槽２１に固定される場合（ダイレクト成形される場合）、まず、図５に示すように、成形された第１の電槽２１を電槽受け治具４２にセットする。次いで、冷媒通路形成部材３０を設けたい位置まで冷媒通路形成部材３０を成形する成形型４０を第１の電槽２１に対して移動させ、成形型４０のキャビティ４１を第１の電槽２１に直接接触させる。次いで、図６に示すように、キャビティ４１を第１の電槽２１に直接接触させた状態のまま、キャビティ４１に溶融樹脂Ｒを流し込んで充填する（射出する）。次いで、溶融樹脂Ｒを冷却固化（硬化）させ、第１の電槽２１に固定される冷媒通路形成部材３０を成形（作製）する。
なお、冷媒通路形成部材３０を成形する成形機に、第１の電槽２１を成形する成形機能を併せ持たせることで、第１の電槽２１の成形と冷媒通路形成部材３０の成形を１つの成形機で行なうことができ、第１の電槽２１の成形と冷媒通路形成部材３０の成形を略同時に行なうことができる。 When the refrigerant passage forming member 30 is fixed to the first battery case 21 by the method (a) (in the case of direct molding), first, as shown in FIG. 5, the molded first battery case 21 is set on the battery case receiving jig 42. Next, the molding die 40 for molding the refrigerant passage forming member 30 is moved with respect to the first battery case 21 to a position where the refrigerant passage forming member 30 is to be provided, and the cavity 41 of the molding die 40 is moved to the first battery case 21. Direct contact. Next, as shown in FIG. 6, the molten resin R is poured into the cavity 41 and filled (injected) while the cavity 41 is in direct contact with the first battery case 21. Next, the molten resin R is cooled and solidified (cured), and the refrigerant passage forming member 30 fixed to the first battery case 21 is formed (produced).
The molding machine for molding the refrigerant passage forming member 30 is also provided with a molding function for molding the first battery case 21 so that the molding of the first battery case 21 and the molding of the refrigerant passage forming member 30 are performed in one. The molding of the first battery case 21 and the molding of the refrigerant passage forming member 30 can be performed almost simultaneously.

つぎに、本発明実施例の作用を説明する。
本発明実施例では、冷媒通路形成部材３０が、２つの電槽２０の一方の電槽である第１の電槽２１に固定されるため、複数の電槽２０を積層する際に各電槽２０間に冷媒通路形成部材３０を配置させる作業（工程）は不要である。そのため、従来に比べて、複数の電槽２０を積層させるのに要する工数が減り、コスト上有利である。 Next, the operation of the embodiment of the present invention will be described.
In the embodiment of the present invention, since the refrigerant passage forming member 30 is fixed to the first battery case 21 which is one of the two battery cases 20, each battery case is stacked when the plurality of battery cases 20 are stacked. The operation | work (process) which arrange | positions the refrigerant path formation member 30 between 20 is unnecessary. Therefore, compared with the conventional case, the number of steps required to stack the plurality of battery cases 20 is reduced, which is advantageous in terms of cost.

冷媒通路形成部材３０が、冷媒通路形成部材３０を成形する成形型４０のキャビティ４１に、キャビティ４１を第１の電槽２１に接触させた状態で、溶融樹脂Ｒを流し込んで冷却固化させることで、第１の電槽２１に接着固定されるため、冷媒通路形成部材３０を成形と同時に第１の電槽２１に固定できる。そのため、冷媒通路形成部材３０を冷媒通路形成部材３０が固定される第１の電槽２１と別体に形成する場合であっても、冷媒通路形成部材３０を第１の電槽２１に固定するための接着材等を不要にでき、接着剤等を要する場合に比べてコスト低減できる。   The refrigerant passage forming member 30 is poured into the cavity 41 of the molding die 40 for forming the refrigerant passage forming member 30 and the molten resin R is poured into the cavity 41 in contact with the first battery case 21 to be cooled and solidified. Since it is bonded and fixed to the first battery case 21, the coolant passage forming member 30 can be fixed to the first battery case 21 simultaneously with the molding. Therefore, even when the refrigerant passage forming member 30 is formed separately from the first battery case 21 to which the refrigerant passage forming member 30 is fixed, the refrigerant passage forming member 30 is fixed to the first battery case 21. Therefore, the cost can be reduced as compared with the case where an adhesive or the like is required.

冷媒通路形成部材３０が、２つの電槽２０の一方の電槽である第１の電槽２１に固定されるため、従来に比べて、複数の電槽２０を積層したときの、積層体全体の捩れや積層方向と異なる方向へのずれを抑制できる。 Since the refrigerant passage forming member 30 is fixed to the first battery case 21 which is one battery case of the two battery cases 20, the entire laminated body when the plurality of battery cases 20 are laminated as compared with the conventional case. Can be prevented from being twisted or shifted in a direction different from the stacking direction.

１０ 電槽間冷媒通路形成構造
２０ 電槽
２０ａ 短側面
２０ｂ 長側面
２１ 第１の電槽
２２ 第２の電槽
３０ 冷媒通路形成部材
４０ 冷媒通路形成部材の成形型
４１ キャビティ
４２ 電槽受け治具
Ｐ 冷媒通路
Ｒ 溶融樹脂 DESCRIPTION OF SYMBOLS 10 Inter-battery refrigerant passage formation structure 20 Battery case 20a Short side surface 20b Long side surface 21 First battery case 22 Second battery case 30 Refrigerant passage formation member 40 Refrigerant passage formation member molding die 41 Cavity 42 Battery case receiving jig P Refrigerant passage R Molten resin

Claims (2)

積層される複数の角型の金属製電槽のうちの、互いに隣り合う２つの電槽と、
前記２つの電槽間に設けられ、前記２つの電槽間に冷媒通路を形成する冷媒通路形成部材と、
を有し、
前記冷媒通路形成部材は、前記２つの電槽と別体に形成されており、前記２つの電槽の一方の電槽である第１の電槽に固定されている、電槽間冷媒通路形成構造。 Two battery cases adjacent to each other among a plurality of rectangular metal battery cases stacked,
A refrigerant passage forming member provided between the two battery cases and forming a refrigerant passage between the two battery cases;
Have
The refrigerant passage forming member is formed separately from the two battery cases, and is fixed to a first battery case that is one of the two battery cases. Construction. 前記冷媒通路形成部材は、型成形品であり、前記冷媒通路形成部材を成形する成形型のキャビティに、該キャビティを前記第１の電槽に接触させた状態で、溶融樹脂を流し込んで冷却固化させることで、前記第１の電槽に接着固定される、請求項１記載の電槽間冷媒通路形成構造。   The refrigerant passage forming member is a molded product, and a molten resin is poured into a cavity of a molding die for forming the refrigerant passage forming member and the cavity is in contact with the first battery case to be cooled and solidified. The inter-battery refrigerant passage forming structure according to claim 1, wherein the inter-battery refrigerant passage forming structure is bonded and fixed to the first battery case.
JP2012052582A 2012-03-09 2012-03-09 Refrigerant passage formation structure between battery cases Pending JP2013187101A (en)

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