JP7213070B2 - Cooling system - Google Patents

Cooling system Download PDF

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Publication number
JP7213070B2
JP7213070B2 JP2018216756A JP2018216756A JP7213070B2 JP 7213070 B2 JP7213070 B2 JP 7213070B2 JP 2018216756 A JP2018216756 A JP 2018216756A JP 2018216756 A JP2018216756 A JP 2018216756A JP 7213070 B2 JP7213070 B2 JP 7213070B2
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main body
holding member
joined
potential
cooling device
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JP2020082101A (en
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俊輔 伊川
正幸 岸
俊典 金井
智哉 平野
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Resonac Holdings Corp
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Showa Denko KK
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Priority to JP2018216756A priority Critical patent/JP7213070B2/en
Priority to DE102019127808.2A priority patent/DE102019127808A1/en
Priority to CN201911133143.9A priority patent/CN111197944A/en
Publication of JP2020082101A publication Critical patent/JP2020082101A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/244—Overlap seam welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/14—Heat exchangers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof
    • 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

Description

本発明は、冷却装置に関する。 The present invention relates to cooling devices.

近年、アルミニウム又はアルミニウム合金等のアルミニウム材料を用いて成形された部材にて構成される冷却装置において、アルミニウム材料を用いて成形された部材同士を接合するために、はんだ付やろう付を行うことが提案されている。
例えば、特許文献１に記載された液冷式冷却装置は、冷却液流通体の流入部の一端面にアルミニウム製入口ヘッダをろう付し、同じく流出部の一端面にアルミニウム製出口ヘッダをろう付し、冷却液流通体の他端面にアルミニウム製中間ヘッダをろう付することにより構成されている。
また、アルミニウム材料を用いて成形された部材を接合するための方法として、特許文献２には、レーザ溶接を行うことが提案されている。 In recent years, in a cooling device composed of members formed using an aluminum material such as aluminum or an aluminum alloy, soldering or brazing is performed to join the members formed using an aluminum material. is proposed.
For example, in the liquid-cooling type cooling device described in Patent Document 1, an aluminum inlet header is brazed to one end face of the inflow portion of the coolant flow, and an aluminum outlet header is brazed to one end face of the outflow portion. An aluminum intermediate header is brazed to the other end face of the cooling liquid circulation body.
Further, as a method for joining members formed using an aluminum material, Patent Document 2 proposes performing laser welding.

特開２０１６－１６１１５８号公報JP 2016-161158 A 特開平４－２７００８８号公報JP-A-4-270088

例えば、内部に液体が流通する流通路を有する、アルミニウム材料を用いて成形された部材（以下、「アルミニウム材」と称する場合がある。）と、流通路の流通方向とは異なる方向に液体を流通させる等のためのアルミニウム材とを重ね合わせて、レーザ溶接にて接合することが考えられる。かかる構成である場合、２つのアルミニウム材の隙間を通ってレーザ溶接による溶接部にまで液体が入り込んでしまうことが考えられるため、溶融部が腐食してしまうことを抑制することが重要となる。
本発明は、レーザ溶接による溶融部を腐食し難くすることができる冷却装置を提供することを目的とする。 For example, a member molded using an aluminum material (hereinafter sometimes referred to as "aluminum material") having a flow passage inside which liquid circulates, and a liquid flowing in a direction different from the flow direction of the flow passage It is conceivable to superimpose an aluminum material for distribution and the like and join them by laser welding. In such a configuration, it is possible that the liquid may enter the welded portion by laser welding through the gap between the two aluminum materials, so it is important to prevent the molten portion from corroding.
SUMMARY OF THE INVENTION An object of the present invention is to provide a cooling device capable of making it difficult for a melted portion due to laser welding to corrode.

かかる目的のもと完成させた本発明は、液体が流通する流通路を内部に有する本体と、前記本体に重ね合わせられた状態でレーザ溶接にて接合される被接合部材と、を備え、前記レーザ溶接による溶融部の電位は、前記本体又は前記被接合部材の電位よりも高いことを特徴とする冷却装置である。
ここで、前記被接合部材に対してレーザ光が照射され、前記溶融部の電位は、前記本体の電位よりも高くても良い。
また、前記本体には、外部と前記流通路とを連通する連通孔が形成され、前記被接合部材は、前記連通孔を覆うように前記本体に重ね合わせられ、当該連通孔の周囲にレーザ光が照射されても良い。
また、前記被接合部材の電位は、前記本体の電位よりも高くても良い。
また、前記本体の材料がアルミニウムの６０００系合金であり、前記被接合部材の材料は、アルミニウムの３０００系合金であっても良い。
また、他の観点から捉えると、本発明は、材質の異なる２つのアルミニウム材を重ね合わせた状態でレーザ溶接することにより接合して構成される冷却装置であって、前記レーザ溶接による溶融部の電位は、前記２つのアルミニウム材の内の一方のアルミニウム材の電位よりも高いことを特徴とする冷却装置である。
ここで、前記２つのアルミニウム材の内の前記一方のアルミニウム材の材料は６０００系合金であり、他方のアルミニウム材の材料は３０００系合金であっても良い。 The present invention completed for this purpose comprises a main body having therein a flow passage through which liquid flows, and a member to be joined superimposed on the main body and joined by laser welding, The cooling device is characterized in that the electric potential of the melted portion due to laser welding is higher than the electric potential of the main body or the members to be joined.
Here, the members to be joined may be irradiated with a laser beam, and the potential of the fusion zone may be higher than the potential of the main body.
Further, the main body is formed with a communicating hole that communicates with the outside and the flow path, and the member to be joined is superimposed on the main body so as to cover the communicating hole, and a laser beam is emitted around the communicating hole. may be irradiated.
Further, the potential of the member to be joined may be higher than the potential of the main body.
Further, the material of the main body may be a 6000-series aluminum alloy, and the material of the member to be joined may be a 3000-series aluminum alloy.
From another point of view, the present invention provides a cooling device configured by joining two aluminum materials of different materials in a superimposed state by laser welding, wherein the melted portion by the laser welding The cooling device is characterized in that the potential is higher than the potential of one of the two aluminum materials.
Here, one of the two aluminum materials may be a 6000 series alloy, and the other aluminum material may be a 3000 series alloy.

本発明によれば、レーザ溶接による溶融部を腐食し難くすることができる冷却装置を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the cooling device which can make the fusion|melting part by laser welding hard to corrode can be provided.

実施の形態に係る液冷式冷却装置の斜視図である。1 is a perspective view of a liquid cooling system according to an embodiment; FIG. 液冷式冷却装置を構成する部品を分解した図である。FIG. 2 is an exploded view of parts that constitute the liquid-cooling type cooling device; 図１のIII－III部の断面図である。2 is a cross-sectional view taken along line III-III of FIG. 1; FIG. 図１のIV－IV部の断面図である。FIG. 2 is a sectional view taken along line IV-IV of FIG. 1; 重ね合わせ部におけるレーザ溶接工程を説明する斜視図である。It is a perspective view explaining the laser welding process in an overlapping part. （ａ）は、図１のVI－VI部の断面図である。（ｂ）は、（ａ）のVIb部の拡大図である。2(a) is a cross-sectional view taken along the line VI-VI of FIG. 1; FIG. (b) is an enlarged view of the VIb portion of (a).

以下、添付図面を参照して、実施の形態について詳細に説明する。
図１は、実施の形態に係る液冷式冷却装置１の斜視図である。
図２は、液冷式冷却装置１を構成する部品を分解した図である。
図３は、図１のIII－III部の断面図である。
図４は、図１のIV－IV部の断面図である。
実施の形態に係る液冷式冷却装置１は、内部に冷却液が流通する装置本体１０と、装置本体１０を流通する冷却液の流通方向を変更する変更部材２０と、を備えている。また、液冷式冷却装置１は、装置本体１０の外部から内部に冷却液を流入させる入口ジョイント３０と、装置本体１０の内部から外部に冷却液を流出させる出口ジョイント４０と、を備えている。 Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.
FIG. 1 is a perspective view of a liquid cooling system 1 according to an embodiment.
FIG. 2 is an exploded view of the parts that make up the liquid cooling system 1. As shown in FIG.
FIG. 3 is a cross-sectional view taken along line III--III in FIG.
FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.
A liquid-cooling type cooling device 1 according to an embodiment includes a device main body 10 in which a cooling liquid flows, and a changing member 20 that changes the flow direction of the cooling liquid that flows through the device main body 10 . The liquid-cooled cooling device 1 also includes an inlet joint 30 for inflowing cooling liquid from the outside of the device main body 10 to the inside, and an outlet joint 40 for allowing the cooling liquid to flow out from the inside of the device main body 10 to the outside. .

（装置本体１０）
装置本体１０は、概形が直方体の部材である。装置本体１０は、押出加工にて成形された、ＪＩＳ Ａ６０６３合金の押出材を用いて成形されており、押出方向が長手方向となるように成形されている。また、図１に示すように、装置本体１０の長手方向及び短手方向の長さは、上下方向の長さよりも大きい。なお、ＪＩＳ Ａ６０６３合金の質別は、Ｔ０又はＴ６であることを例示することができる。また、その他の質別であっても良いが、装置本体１０の硬さが、４２（ＨＶ（ビッカース硬さ））以上であることが望ましい。 (Device body 10)
The device main body 10 is a rectangular parallelepiped member. The device main body 10 is formed using an extruded material of JIS A6063 alloy formed by extrusion, and is formed so that the extrusion direction is the longitudinal direction. Further, as shown in FIG. 1, the longitudinal and lateral lengths of the device main body 10 are greater than the vertical length. Incidentally, the temper of JIS A6063 alloy can be exemplified as T0 or T6. Although other tempers may be used, it is desirable that the hardness of the device main body 10 is 42 (HV (Vickers hardness)) or more.

装置本体１０の内部には、長手方向における一方の端部から他方の端部まで貫通した貫通孔１１が複数形成されている。本実施の形態に係る液冷式冷却装置１においては、図４に示すように、貫通孔１１は、短手方向の中央部よりも手前側と、中央部よりも奥側とに、それぞれ６つ形成されている。 A plurality of through holes 11 are formed in the interior of the device main body 10 so as to penetrate from one end portion to the other end portion in the longitudinal direction. In the liquid cooling type cooling device 1 according to the present embodiment, as shown in FIG. 4, the through holes 11 are provided on the front side of the central portion in the lateral direction and on the rear side of the central portion. are formed.

手前側の６つの貫通孔１１は、入口ジョイント３０を介して流入し、変更部材２０に至る前の冷却液が流通する流入側流路１１１として機能する。隣接する流入側流路１１１は、流入側壁１１１ａにより仕切られている。
他方、奥側の６つの貫通孔１１は、変更部材２０を通過後に流入し、出口ジョイント４０に至る前の冷却液が流通する流出側流路１１２として機能する。隣接する流出側流路１１２は、流出側壁１１２ａにより仕切られている。 The six through-holes 11 on the front side function as inflow-side flow passages 111 through which coolant flows through the inlet joint 30 and before reaching the change member 20 . Adjacent inflow-side channels 111 are partitioned by inflow side walls 111a.
On the other hand, the six through-holes 11 on the far side function as outflow-side passages 112 through which the coolant flows after passing through the change member 20 and before reaching the outlet joint 40 . Adjacent outflow-side channels 112 are partitioned by outflow side walls 112a.

また、装置本体１０には、長手方向における中央部に、上面から凹んだ空間１２が２つ形成されている。２つの空間１２の内の一つは、流入側流路１１１と連通するように形成された流入側空間１２１であり、他方は、流出側流路１１２と連通するように形成された流出側空間１２２である。
流入側空間１２１は、上壁１３及び流入側壁１１１ａが例えば切削加工にて除去されることで形成された空間であり、上壁１３が貫通された貫通孔１２１ａと、流入側壁１１１ａが除去された下部空間１２１ｂとにより形成される。なお、図２に示した例では、流入側壁１１１ａは、上側から下側にかけて全て除去されているが、上側の一部が除去され、下側の部分が残っていても良い。
流出側空間１２２は、上壁１３及び流出側壁１１２ａが例えば切削加工にて除去されることで形成された空間であり、上壁１３が貫通された貫通孔１２２ａと、流出側壁１１２ａが除去された下部空間１２２ｂとにより形成される。なお、図２に示した例では、流出側壁１１２ａは、上側から下側にかけて全て除去されているが、上側の一部が除去され、下側の部分が残っていても良い。 In addition, two spaces 12 recessed from the upper surface are formed in the central portion of the apparatus main body 10 in the longitudinal direction. One of the two spaces 12 is an inflow-side space 121 formed to communicate with the inflow-side channel 111, and the other is an outflow-side space formed to communicate with the outflow-side channel 112. 122.
The inflow-side space 121 is a space formed by removing the upper wall 13 and the inflow side wall 111a by, for example, cutting. It is formed by the lower space 121b. In the example shown in FIG. 2, the inflow side wall 111a is completely removed from the upper side to the lower side, but the upper side may be partially removed and the lower side may remain.
The outflow side space 122 is a space formed by removing the upper wall 13 and the outflow side wall 112a by, for example, cutting. It is formed by the lower space 122b. In the example shown in FIG. 2, the outflow side wall 112a is completely removed from the upper side to the lower side, but the upper side may be partially removed and the lower side may remain.

（変更部材２０）
変更部材２０は、装置本体１０における長手方向の両端部それぞれに配置されている。
変更部材２０は、概形が直方体の部材であるとともに、装置本体１０側の端面から凹んだ凹部２１が形成されている。凹部２１により、流入側流路１１１と流出側流路１１２とが連通させられている。
変更部材２０は、装置本体１０側の端面と、装置本体１０の長手方向の端面とが突き合わせられた状態で、突き合わせ部にレーザ溶接が施されることにより接合されている。このように、変更部材２０は、本体の一例としての装置本体１０に対してレーザ溶接にて接合される被接合部材の一例である。 (Change member 20)
The changing members 20 are arranged at both longitudinal ends of the apparatus main body 10 .
The change member 20 is a rectangular parallelepiped member and has a concave portion 21 recessed from the end face on the apparatus main body 10 side. The inflow-side channel 111 and the outflow-side channel 112 are communicated with each other by the concave portion 21 .
The change member 20 is joined by applying laser welding to the abutting portion in a state in which the end face on the side of the device main body 10 and the end face in the longitudinal direction of the device main body 10 are butted. Thus, the change member 20 is an example of a member to be joined that is joined to the device main body 10, which is an example of the main body, by laser welding.

変更部材２０は、例えば、質別ＯのＪＩＳ Ａ３０００系合金からなる条に深絞り加工が施されることにより成形されたものであることを例示することができる。また、変更部材２０は、例えば、質別Ｈ１４のＪＩＳ Ａ３０００系合金又は質別Ｈ１４のＪＩＳ Ａ１０００系アルミニウムからなる素材に切削加工が施されることにより成形されたものであっても良い。 For example, the modified member 20 is formed by subjecting a strip made of a JIS A3000 series alloy of temper grade O to deep drawing. Alternatively, the change member 20 may be formed by cutting a material made of, for example, a JIS A3000 series alloy with a temper of H14 or a JIS A1000 series aluminum with a temper of H14.

（入口ジョイント３０）
入口ジョイント３０は、円筒状であり中心線方向が上下方向となるように配置される入口パイプ３１と、入口パイプ３１を保持する保持部材３２とを有している。 (Inlet joint 30)
The inlet joint 30 has a cylindrical inlet pipe 31 arranged so that the center line direction is the vertical direction, and a holding member 32 that holds the inlet pipe 31 .

入口パイプ３１は、上端寄りの部分に設けられた、径方向外側に全周に亘って突出した上端側突出部３１１と、下端寄りの部分に設けられた、径方向外側に全周に亘って突出した下端側突出部３１２とを有している。
入口パイプ３１における、下端側突出部３１２よりも下端側の部分が、保持部材３２に形成された後述する貫通孔３２１に挿入されている。
保持部材３２は、概形が板状の直方体の部材であり、中央部に円形の貫通孔３２１が形成されている。保持部材３２は、ＪＩＳ Ａ３００３合金の板材を用いて成形されている。なお、ＪＩＳ Ａ３００３合金の質別は、質別Ｈ１２又は質別Ｈ１８であることを例示することができる。また、その他の質別であっても良いが、保持部材３２の硬さが、３５（ＨＶ）以上であることが望ましい。 The inlet pipe 31 has an upper-end protrusion 311 that protrudes radially outward over the entire circumference, and a portion closer to the lower end that extends radially outward over the entire circumference. and a projecting lower end side projecting portion 312 .
A portion of the inlet pipe 31 on the lower end side of the lower end side projecting portion 312 is inserted into a through hole 321 formed in the holding member 32 and described later.
The holding member 32 is a generally plate-like rectangular parallelepiped member, and has a circular through-hole 321 formed in the central portion thereof. The holding member 32 is formed using a plate material of JIS A3003 alloy. Incidentally, the temper of the JIS A3003 alloy can be exemplified as H12 or H18. Although other tempers may be used, it is desirable that the hardness of the holding member 32 is 35 (HV) or more.

入口パイプ３１は、下端側突出部３１２よりも下端側の部分が、保持部材３２に形成された貫通孔３２１に挿入された状態でろう付されている。下端側突出部３１２における最外径部と保持部材３２との間には、溶融したろう材からなるフィレット３３が形成されている。 The inlet pipe 31 is brazed while being inserted into a through hole 321 formed in the holding member 32 at a portion on the lower end side of the lower end side projecting portion 312 . A fillet 33 made of melted brazing material is formed between the outermost diameter portion of the lower end side projecting portion 312 and the holding member 32 .

そして、入口ジョイント３０は、入口パイプ３１の下端部が装置本体１０の流入側空間１２１に挿入され、保持部材３２の下端面が装置本体１０の上面に載せられた状態（保持部材３２と装置本体１０とを重ね合わせた状態）で、レーザ溶接が施されることにより接合されている。このように、保持部材３２は、装置本体１０に対してレーザ溶接にて接合される被接合部材の一例である。 The inlet joint 30 is in a state in which the lower end of the inlet pipe 31 is inserted into the inlet-side space 121 of the apparatus main body 10 and the lower end surface of the holding member 32 is placed on the upper surface of the apparatus main body 10 (the holding member 32 and the apparatus main body are separated from each other). 10 are superimposed), and are joined by laser welding. Thus, the holding member 32 is an example of a member to be joined to the device main body 10 by laser welding.

（出口ジョイント４０）
出口ジョイント４０は、入口ジョイント３０と同様の部材であり、円筒状であり中心線方向が上下方向となるように配置される出口パイプ４１と、出口パイプ４１を保持する保持部材４２とを有している。 (Exit joint 40)
The outlet joint 40 is a member similar to the inlet joint 30, and has a cylindrical outlet pipe 41 arranged so that the center line direction is the vertical direction, and a holding member 42 that holds the outlet pipe 41. ing.

出口パイプ４１は、上端寄りの部分に設けられた、径方向外側に全周に亘って突出した上端側突出部４１１と、下端寄りの部分に設けられた、径方向外側に全周に亘って突出した下端側突出部４１２とを有している。
出口パイプ４１における、下端側突出部４１２よりも下端側の部分が、保持部材４２に形成された後述する貫通孔（不図示）に挿入されている。
保持部材４２は、概形が板状の直方体の部材であり、中央部に円形の貫通孔（不図示）が形成されている。保持部材４２は、保持部材３２と同様に、ＪＩＳ Ａ３００３合金の板材を用いて成形されている。なお、ＪＩＳ Ａ３００３合金の質別は、質別Ｈ１２又は質別Ｈ１８であることを例示することができる。また、その他の質別であっても良いが、保持部材４２の硬さが、３５（ＨＶ）以上であることが望ましい。 The outlet pipe 41 has an upper end-side projecting portion 411 that protrudes radially outward over the entire circumference provided in a portion closer to the upper end, and an upper end-side projecting portion 411 that is provided in a portion closer to the lower end and extends radially outward over the entire circumference. and a projecting lower end side projecting portion 412 .
A portion of the outlet pipe 41 on the lower end side of the lower end side projecting portion 412 is inserted into a through hole (not shown) formed in the holding member 42 and described later.
The holding member 42 is a generally plate-shaped rectangular parallelepiped member, and has a circular through hole (not shown) formed in the center. Like the holding member 32, the holding member 42 is formed using a JIS A3003 alloy plate material. Incidentally, the temper of the JIS A3003 alloy can be exemplified as H12 or H18. Although other tempers may be used, it is desirable that the hardness of the holding member 42 is 35 (HV) or more.

出口パイプ４１は、下端側突出部４１２よりも下端側の部分が、保持部材４２に形成された貫通孔（不図示）に挿入された状態でろう付されている。下端側突出部４１２における最外径部と保持部材４２との間には、溶融したろう材からなるフィレット４３が形成されている。 The outlet pipe 41 is brazed while being inserted into a through-hole (not shown) formed in the holding member 42 at a portion on the lower end side of the lower end side projecting portion 412 . A fillet 43 made of melted brazing material is formed between the outermost diameter portion of the lower end side projecting portion 412 and the holding member 42 .

そして、出口ジョイント４０は、出口パイプ４１の下端部が装置本体１０の流出側空間１２２に挿入され、保持部材４２の下端面が装置本体１０の上面に載せられた状態（保持部材４２と装置本体１０とを重ね合わせた状態）で、レーザ溶接が施されることにより接合されている。このように、保持部材４２は、装置本体１０に対してレーザ溶接にて接合される被接合部材の一例である。 The outlet joint 40 is in a state in which the lower end of the outlet pipe 41 is inserted into the outflow side space 122 of the apparatus main body 10 and the lower end surface of the holding member 42 is placed on the upper surface of the apparatus main body 10 (the holding member 42 and the apparatus main body are separated from each other). 10 are superimposed), and are joined by laser welding. Thus, the holding member 42 is an example of a member to be joined to the device main body 10 by laser welding.

（液冷式冷却装置１の作用）
以上のように構成された液冷式冷却装置１には、装置本体１０の上面であって、入口ジョイント３０及び出口ジョイント４０が設けられた部位よりも長手方向の外側に、この液冷式冷却装置１により冷却される被冷却物が載せられる。被冷却物は、複数の直方体状の単電池１０１からなる組電池１００であることを例示することができる。 (Action of Liquid Cooling System 1)
In the liquid cooling system 1 configured as described above, the liquid cooling system is provided on the upper surface of the device main body 10 and outside in the longitudinal direction the part where the inlet joint 30 and the outlet joint 40 are provided. An object to be cooled by the device 1 is placed thereon. The object to be cooled can be exemplified by an assembled battery 100 composed of a plurality of rectangular parallelepiped single cells 101 .

そして、液冷式冷却装置１においては、入口ジョイント３０の入口パイプ３１から装置本体１０の流入側空間１２１内に流入した冷却液が、流入側流路１１１を通って変更部材２０の凹部２１内に至る。変更部材２０の凹部２１内に至った冷却液は、その後、流出側流路１１２を通って流出側空間１２２に至り、出口ジョイント４０の出口パイプ４１から流出する。このようにして、冷却液が、装置本体１０の流入側流路１１１及び流出側流路１１２を流通する間に、装置本体１０の上面に載せられた組電池１００を冷却する。 In the liquid cooling type cooling device 1 , the cooling liquid that has flowed from the inlet pipe 31 of the inlet joint 30 into the inflow-side space 121 of the device main body 10 passes through the inflow-side channel 111 and enters the concave portion 21 of the changing member 20 . up to. The coolant that has reached the recess 21 of the change member 20 then passes through the outflow-side channel 112 to reach the outflow-side space 122 and flows out from the outlet pipe 41 of the outlet joint 40 . In this manner, the cooling liquid cools the assembled battery 100 placed on the upper surface of the device main body 10 while flowing through the inflow channel 111 and the outflow channel 112 of the device main body 10 .

（液冷式冷却装置１の製造方法）
以上のように構成された液冷式冷却装置１は、以下のようにして製造される。
装置本体１０における長手方向の両端部の端面と、変更部材２０における装置本体１０側の端面とを突き合わせた状態で、突き合わせ部に対して、レーザ光を連続的に照射する。このようにして、装置本体１０における長手方向の両端部に、変更部材２０を、レーザ溶接にて接合する。
突き合わせ部にレーザ光が照射されることで、突き合わせ部と略同一位置に溶接部２２（図３参照）が形成される。 (Manufacturing method of liquid cooling type cooling device 1)
The liquid cooling system 1 configured as described above is manufactured as follows.
In a state in which the end faces of both longitudinal ends of the device main body 10 and the end faces of the changing member 20 on the device main body 10 side are butted against each other, the butted portions are continuously irradiated with laser light. In this manner, the changing members 20 are joined to the longitudinal ends of the apparatus main body 10 by laser welding.
By irradiating the butted portion with the laser beam, the welded portion 22 (see FIG. 3) is formed at substantially the same position as the butted portion.

また、装置本体１０の流入側空間１２１に入口ジョイント３０の入口パイプ３１の下端部を挿入し、入口ジョイント３０の保持部材３２の下端面を装置本体１０の上面に載せる（保持部材３２と装置本体１０とを重ね合わせる）。そして、保持部材３２と装置本体１０とを重ね合わせた状態で、保持部材３２に対してレーザ光を照射し、入口パイプ３１の周囲にレーザ光を連続的に照射していく。このようにして、装置本体１０における中央部に、入口ジョイント３０を、レーザ溶接にて接合する。
重ね合わせ部にレーザ光が照射されることで、照射された位置と略同一位置に溶接部３４（図３参照）が形成される。 Also, the lower end of the inlet pipe 31 of the inlet joint 30 is inserted into the inflow-side space 121 of the apparatus main body 10, and the lower end surface of the holding member 32 of the inlet joint 30 is placed on the upper surface of the apparatus main body 10 (the holding member 32 and the apparatus main body 10). Then, in a state where the holding member 32 and the apparatus main body 10 are overlapped, the holding member 32 is irradiated with laser light, and the periphery of the inlet pipe 31 is continuously irradiated with laser light. In this manner, the inlet joint 30 is joined to the central portion of the device main body 10 by laser welding.
By irradiating the overlapped portion with the laser beam, the welded portion 34 (see FIG. 3) is formed at substantially the same position as the irradiated position.

同様に、装置本体１０の流出側空間１２２に出口ジョイント４０の出口パイプ４１の下端部を挿入し、出口ジョイント４０の保持部材４２の下端面を装置本体１０の上面に載せる（保持部材４２と装置本体１０とを重ね合わせる）。そして、保持部材４２と装置本体１０とを重ね合わせた状態で、保持部材４２に対してレーザ光を照射し、出口パイプ４１の周囲にレーザ光を連続的に照射していく。このようにして、装置本体１０における中央部に、出口ジョイント４０を、レーザ溶接にて接合する。
重ね合わせ部にレーザ光が照射されることで、照射された位置と略同一位置に溶接部４４（図１参照）が形成される。 Similarly, the lower end of the outlet pipe 41 of the outlet joint 40 is inserted into the outflow side space 122 of the device main body 10, and the lower end surface of the holding member 42 of the outlet joint 40 is placed on the upper surface of the device main body 10 (the holding member 42 and the device the main body 10). Then, while the holding member 42 and the apparatus main body 10 are overlapped, the holding member 42 is irradiated with laser light, and the periphery of the outlet pipe 41 is continuously irradiated with the laser light. In this manner, the outlet joint 40 is joined to the central portion of the apparatus main body 10 by laser welding.
A welded portion 44 (see FIG. 1) is formed at substantially the same position as the irradiated position by irradiating the overlapping portion with the laser beam.

（レーザ溶接工程）
図５は、重ね合わせ部におけるレーザ溶接工程を説明する斜視図である。
図５に示すように、装置本体１０と入口ジョイント３０の保持部材３２（出口ジョイント４０の保持部材４２）との重ね合わせ部に向けて、レーザ装置１５０のレーザヘッド１５１からレーザ光Ｌを照射する。そして、レーザヘッド１５１を、入口パイプ３１（出口パイプ４１）の周囲の保持部材３２（保持部材４２）の端部形状に沿って移動させることで、レーザ光Ｌを連続的に照射する。
なお、レーザ装置１５０のレーザ源は特に限定されない。ＹＡＧレーザ、ＣＯ２レーザ、ファイバレーザ、ディスクレーザ、半導体レーザであることを例示することができる。また、レーザ光Ｌの照射方向は、重ね合わせ部の保持部材３２（保持部材４２）の面に対して直交する方向でも良いし、直交方向に対して傾斜した方向であっても良い。
また、装置本体１０と変更部材２０との突き合わせ部に向けて、レーザヘッド１５１からレーザ光Ｌを照射する。そして、レーザヘッド１５１を、突き合わせ部の形状に沿って移動させることで、レーザ光Ｌを連続的に照射する。 (laser welding process)
FIG. 5 is a perspective view explaining the laser welding process in the overlapped portion.
As shown in FIG. 5, a laser beam L is emitted from a laser head 151 of a laser device 150 toward an overlapped portion of the device main body 10 and the holding member 32 of the inlet joint 30 (the holding member 42 of the outlet joint 40). . The laser head 151 is moved along the shape of the end portion of the holding member 32 (holding member 42) around the inlet pipe 31 (outlet pipe 41) to continuously irradiate the laser light L.
Note that the laser source of the laser device 150 is not particularly limited. YAG lasers, CO2 lasers, fiber lasers, disk lasers, semiconductor lasers can be exemplified. Further, the irradiation direction of the laser light L may be a direction perpendicular to the surface of the holding member 32 (holding member 42) of the overlapping portion, or may be a direction inclined with respect to the perpendicular direction.
In addition, the laser head 151 irradiates the laser light L toward the abutting portion between the device main body 10 and the change member 20 . Then, the laser beam L is continuously irradiated by moving the laser head 151 along the shape of the butted portion.

（溶接部）
図６（ａ）は、図１のVI－VI部の断面図である。図６（ｂ）は、図６（ａ）のVIb部の拡大図である。
図６（ａ）及び図６（ｂ）は、入口ジョイント３０の保持部材３２と装置本体１０との重ね合わせ部の溶接部３４の断面形状を示している。レーザ装置１５０のレーザヘッド１５１から保持部材３２に対してレーザ光Ｌが照射され、レーザ光Ｌのエネルギーが熱に変換されることによって、重ね合わせ部を構成している、アルミニウム材である保持部材３２と装置本体１０の母材自体が溶融し、その後急速に冷却される。この急速加熱・急速冷却により溶接部３４に組織変化が生じ、溶接部３４は、溶けて固まった溶融部３４ｍと、溶接熱により組織変化の生じた熱影響部３４ｈとにより構成される。熱影響部３４ｈは、保持部材３２の熱影響部３２ｈと、装置本体１０の熱影響部１０ｈとにより構成される。 (welded part)
FIG. 6(a) is a sectional view taken along the line VI-VI in FIG. FIG. 6(b) is an enlarged view of the VIb portion of FIG. 6(a).
FIGS. 6(a) and 6(b) show cross-sectional shapes of the welded portion 34 of the overlapped portion between the holding member 32 of the inlet joint 30 and the device main body 10. FIG. The holding member 32 is made of an aluminum material and forms the overlapping portion by irradiating the holding member 32 with the laser beam L from the laser head 151 of the laser device 150 and converting the energy of the laser beam L into heat. 32 and the base material of the apparatus main body 10 are melted and then rapidly cooled. This rapid heating and rapid cooling causes structural change in the welded portion 34, and the welded portion 34 is composed of a melted portion 34m that has melted and hardened and a heat affected zone 34h that has undergone a structural change due to the welding heat. The heat-affected portion 34 h is composed of the heat-affected portion 32 h of the holding member 32 and the heat-affected portion 10 h of the apparatus main body 10 .

上述したように製造される液冷式冷却装置１において、装置本体１０に用いられるアルミニウム材料と、入口ジョイント３０の保持部材３２及び出口ジョイント４０の保持部材４２に用いられるアルミニウム材料とは異なる。
これは、本発明者が鋭意研究したところ、材質の異なる２つのアルミニウム材がレーザ溶接にて接合されると、レーザ溶接による溶融部の電位は、２つのアルミニウム材の内の一方のアルミニウム材の電位よりも高くなることを見出したことに起因する。材質の異なる２つのアルミニウム材の内の電位が低い方のアルミニウム材の電位、溶融部の電位、２つのアルミニウム材の内の電位が高い方のアルミニウム材の電位の順に高くなる。液冷式冷却装置１においては、装置本体１０のアルミニウム材料と、保持部材３２（保持部材４２）のアルミニウム材料とを異ならせることで、これらをレーザ溶接したことによる溶融部３４ｍの電位が最も低くならないようにした。 In the liquid cooling type cooling device 1 manufactured as described above, the aluminum material used for the device body 10 is different from the aluminum material used for the holding member 32 of the inlet joint 30 and the holding member 42 of the outlet joint 40 .
As a result of intensive research by the present inventors, when two aluminum materials made of different materials are joined by laser welding, the electric potential of the melted portion due to laser welding is the same as that of one of the two aluminum materials. This is due to the fact that it was found to be higher than the potential. Among two different aluminum materials, the electric potential of the aluminum material with the lower electric potential, the electric potential of the fusion zone, and the electric potential of the aluminum material with the higher electric potential among the two aluminum materials increase in this order. In the liquid cooling type cooling device 1, the aluminum material of the device main body 10 and the aluminum material of the holding member 32 (holding member 42) are made different, so that the electric potential of the melted portion 34m due to laser welding of these members is the lowest. I tried not to.

また、本実施の形態に係る液冷式冷却装置１において、装置本体１０のアルミニウム材料と、保持部材３２（保持部材４２）のアルミニウム材料とを選定するにあたって、装置本体１０は、流入側流路１１１及び流出側流路１１２を内部に有し、保持部材３２（保持部材４２）は、流入側空間１２１（流出側空間１２２）を覆う点に鑑みる。保持部材３２は、装置本体１０に形成された、装置本体１０の外部と流入側流路１１１とを連通する連通孔の一例としての貫通孔１２１ａを覆うように装置本体１０に重ね合わせられ、貫通孔１２１ａの周囲にレーザ光が照射される。保持部材４２は、装置本体１０に形成された、装置本体１０の外部と流出側流路１１２とを連通する連通孔の一例としての貫通孔１２２ａを覆うように装置本体１０に重ね合わせられ、貫通孔１２２ａの周囲にレーザ光が照射される。 Further, in the liquid-cooling type cooling device 1 according to the present embodiment, when selecting the aluminum material of the device main body 10 and the aluminum material of the holding member 32 (holding member 42), the device main body 10 has an inflow-side flow path 111 and an outflow-side channel 112 inside, and the holding member 32 (holding member 42) covers the inflow-side space 121 (outflow-side space 122). The holding member 32 is superimposed on the apparatus main body 10 so as to cover a through hole 121 a formed in the apparatus main body 10 , which is an example of a communication hole communicating between the outside of the apparatus main body 10 and the inflow-side channel 111 . A laser beam is irradiated around the hole 121a. The holding member 42 is superimposed on the apparatus main body 10 so as to cover a through hole 122 a formed in the apparatus main body 10 , which is an example of a communication hole communicating between the outside of the apparatus main body 10 and the outflow-side channel 112 . A laser beam is irradiated around the hole 122a.

そして、本実施の形態に係る液冷式冷却装置１においては、保持部材３２（保持部材４２）のアルミニウム材料をＪＩＳ Ａ３０００系合金とし、装置本体１０のアルミニウム材料を、保持部材３２（保持部材４２）の電位よりも低い、ＪＩＳ Ａ６０００系合金とした。より具体的には、保持部材３２（保持部材４２）のアルミニウム材料をＪＩＳ Ａ３００３合金、装置本体１０のアルミニウム材料をＪＩＳ Ａ６０６３合金とした（ＪＩＳ Ａ３００３合金の電位は－７１９．３（ｍＶ）、ＪＩＳ Ａ６０６３合金の電位は－７４２．３（ｍＶ））。 In the liquid-cooled cooling device 1 according to the present embodiment, the aluminum material of the holding member 32 (holding member 42) is JIS A3000 series alloy, and the aluminum material of the device body 10 is the holding member 32 (holding member 42 ), which is a JIS A6000 series alloy. More specifically, the aluminum material of the holding member 32 (holding member 42) is JIS A3003 alloy, and the aluminum material of the apparatus main body 10 is JIS A6063 alloy (the potential of JIS A3003 alloy is -719.3 (mV), JIS The potential of A6063 alloy is -742.3 (mV)).

これにより、レーザ溶接の溶融部（例えば溶融部３４ｍ）の電位が装置本体１０の電位よりも高くなるようにするとともに、保持部材３２（保持部材４２）の電位が装置本体１０の電位よりも高くなるようにした。つまり、装置本体１０の電位、溶融部（例えば溶融部３４ｍ）の電位、保持部材３２（保持部材４２）の電位の順に高くなるようにした。その結果、装置本体１０と保持部材３２（保持部材４２）との間に冷却液が入り込んでしまったとしても、溶融部（例えば溶融部３４ｍ）が卑な金属となってしまうことを抑制することができ、溶融部が腐食してしまうことを抑制することができる。また、保持部材３２（保持部材４２）が卑な金属となってしまうことを抑制することができ、溶融部が腐食してしまうことを抑制することができる。 As a result, the potential of the laser-welded melted portion (for example, the melted portion 34m) is made higher than the potential of the device main body 10, and the potential of the holding member 32 (holding member 42) is made higher than the potential of the device main body 10. I made it so that In other words, the potential of the apparatus main body 10, the potential of the fusion zone (for example, the fusion zone 34m), and the potential of the holding member 32 (holding member 42) are made higher in this order. As a result, even if the cooling liquid enters between the device main body 10 and the holding member 32 (holding member 42), it is possible to prevent the melted portion (for example, the melted portion 34m) from becoming a base metal. can be formed, and corrosion of the fusion zone can be suppressed. In addition, it is possible to prevent the holding member 32 (holding member 42) from becoming a base metal, and it is possible to prevent corrosion of the fusion zone.

これに対して、装置本体１０の電位は、溶融部（例えば溶融部３４ｍ）の電位、及び、保持部材３２（保持部材４２）の電位よりも低いので、装置本体１０と保持部材３２（保持部材４２）との間に冷却液が入り込んでしまった場合には、装置本体１０が卑な金属となってしまい、装置本体１０が腐食してしまうおそれがある。しかしながら、装置本体１０における溶融部３４ｍよりも内側の部位が腐食してしまっても、保持部材３２は、装置本体１０に形成された貫通孔１２１ａを覆うように装置本体１０に重ね合わせられ、貫通孔１２１ａの周囲にレーザ光が照射されて、溶融部３４ｍが形成されているので、冷却液が装置本体１０の外部に漏れることが抑制される。また、保持部材４２は、装置本体１０に形成された貫通孔１２２ａを覆うように装置本体１０に重ね合わせられ、貫通孔１２２ａの周囲にレーザ光が照射されて、溶融部が形成されているので、冷却液が装置本体１０の外部に漏れることが抑制される。 On the other hand, since the potential of the apparatus main body 10 is lower than the potential of the fusion zone (for example, the fusion zone 34m) and the potential of the holding member 32 (holding member 42), the apparatus main body 10 and the holding member 32 (holding member 42), the device main body 10 becomes a base metal, and the device main body 10 may corrode. However, even if the portion of the apparatus main body 10 inside the melted portion 34m is corroded, the holding member 32 is superimposed on the apparatus main body 10 so as to cover the through hole 121a formed in the apparatus main body 10, and passes through the apparatus main body 10. Since the melted portion 34m is formed by irradiating the laser beam around the hole 121a, leakage of the cooling liquid to the outside of the apparatus main body 10 is suppressed. The holding member 42 is superimposed on the apparatus main body 10 so as to cover the through hole 122a formed in the apparatus main body 10, and a laser beam is irradiated around the through hole 122a to form a melted portion. , the coolant is suppressed from leaking to the outside of the device main body 10 .

以上説明したように、本実施の形態に係る液冷式冷却装置１は、材質の異なる２つのアルミニウム材を重ね合わせた状態でレーザ溶接することにより接合して構成される冷却装置であって、レーザ溶接による溶融部の電位は、２つのアルミニウム材の内の一方のアルミニウム材の電位よりも高いことを特徴とする冷却装置の一例である。ただし、この特徴点である、レーザ溶接による溶融部の電位が、２つのアルミニウム材の内の一方のアルミニウム材の電位よりも高いのは、冷却装置に限って好適なわけではない。２つのアルミニウム材をレーザ溶接にて接合して構成される全ての構造物に好適である。そして、レーザ溶接による溶融部の電位が、２つのアルミニウム材の内の一方のアルミニウム材の電位よりも高いことで、溶融部が腐食し難くなる。 As described above, the liquid-cooling type cooling device 1 according to the present embodiment is a cooling device configured by joining two aluminum materials of different materials in a superimposed state by laser welding, This is an example of the cooling device characterized in that the electric potential of the melted portion due to laser welding is higher than the electric potential of one of the two aluminum materials. However, the feature that the potential of the melted portion by laser welding is higher than the potential of one of the two aluminum materials is not suitable only for the cooling device. It is suitable for all structures constructed by joining two aluminum materials by laser welding. Further, since the potential of the melted portion due to laser welding is higher than the potential of one of the two aluminum materials, the melted portion is less likely to corrode.

１…液冷式冷却装置、１０…装置本体、１０ｈ…熱影響部、２０…変更部材、３０…入口ジョイント、３１…入口パイプ、３２…保持部材、３２ｈ…熱影響部、３４…溶接部、３４ｍ…溶融部、３４ｈ…熱影響部、４０…出口ジョイント、４１…出口パイプ、４２…保持部材 DESCRIPTION OF SYMBOLS 1... Liquid-cooled type cooling device 10... Device main body 10h... Heat affected zone 20... Change member 30... Entrance joint 31... Entrance pipe 32... Holding member 32h... Heat affected zone 34... Welding part 34m...melting zone, 34h...heat-affected zone, 40...outlet joint, 41...outlet pipe, 42...holding member

Claims (7)

液体が流通する流通路を内部に有する本体と、
前記本体に重ね合わせられた状態でレーザ溶接にて接合される被接合部材と、
を備え、
前記本体には、外部と前記流通路とを連通する連通孔が形成され、
前記被接合部材は、前記連通孔を覆うように前記本体に重ね合わせられた状態でレーザ光が照射され、
前記レーザ溶接による溶融部の電位は、前記本体の電位よりも高いことを特徴とする冷却装置。 a main body having therein a flow path through which liquid flows;
a member to be joined that is joined by laser welding while being superimposed on the main body;
with
The main body is formed with a communication hole that communicates with the outside and the flow path,
The member to be joined is irradiated with a laser beam while being superimposed on the main body so as to cover the communicating hole,
A cooling device according to claim 1, wherein the potential of the melted portion due to the laser welding is higher than the potential of the main body . 前記被接合部材の電位は、前記本体の電位よりも高い
請求項１に記載の冷却装置。 2. The cooling device according to claim 1 , wherein the potential of said member to be joined is higher than the potential of said main body. 前記本体の材料がアルミニウムの６０００系合金であり、前記被接合部材の材料は、アルミニウムの３０００系合金である
請求項１又は２に記載の冷却装置。 3. The cooling device according to claim 1, wherein the main body is made of a 6000-series aluminum alloy, and the member to be joined is made of a 3000-series aluminum alloy. 液体が流通する流通路を内部に有する本体と、 a main body having therein a flow path through which liquid flows;
前記本体に重ね合わせられた状態でレーザ溶接にて接合される被接合部材と、 a member to be joined that is joined by laser welding while being superimposed on the main body;
を備え、with
前記本体には、外部と前記流通路とを連通する連通孔が形成され、 The main body is formed with a communication hole that communicates with the outside and the flow path,
前記被接合部材は、前記連通孔を介して前記流通路と連通して、当該流通路を流通する液体と接触し、 the member to be joined communicates with the flow path through the communication hole and contacts the liquid flowing through the flow path;
前記レーザ溶接による溶接部は、前記流通路を流通する液体が前記連通孔を介して装置外部に流出するのを抑制し、 The laser welded portion suppresses the liquid flowing through the flow path from flowing out of the device through the communication hole,
前記レーザ溶接による溶融部の電位は、前記本体又は前記被接合部材の電位よりも高いことを特徴とする冷却装置。 A cooling device according to claim 1, wherein the electric potential of the melted portion due to the laser welding is higher than the electric potential of the main body or the member to be joined. 前記被接合部材に対してレーザ光が照射され、 A laser beam is irradiated to the member to be joined,
前記溶融部の電位は、前記本体の電位よりも高い The potential of the fusion zone is higher than the potential of the main body
請求項４に記載の冷却装置。5. A cooling device according to claim 4. 前記被接合部材の電位は、前記本体の電位よりも高い The potential of the member to be joined is higher than the potential of the main body
請求項５に記載の冷却装置。A cooling device according to claim 5 . 前記本体の材料がアルミニウムの６０００系合金であり、前記被接合部材の材料は、アルミニウムの３０００系合金である The material of the main body is an aluminum 6000 series alloy, and the material of the member to be joined is an aluminum 3000 series alloy.
請求項４から６のいずれか１項に記載の冷却装置。Cooling device according to any one of claims 4 to 6.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011220582A (en) 2010-04-07 2011-11-04 Denso Corp Heat exchanger
JP2014067664A (en) 2012-09-27 2014-04-17 Uacj Corp Cleaning method of battery can before sealing
JP2014216298A (en) 2013-04-30 2014-11-17 日立オートモティブシステムズ株式会社 Battery module
JP2015078399A (en) 2013-10-15 2015-04-23 株式会社Uacj Aluminum alloy heat exchanger
JP2016161158A (en) 2015-02-27 2016-09-05 昭和電工株式会社 Liquid-cooled cooling apparatus
US20170130752A1 (en) 2015-11-05 2017-05-11 Ohio State Innovation Foundation Welding methods and welded joints for joining high-strength aluminum alloys

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665294A (en) * 1986-03-27 1987-05-12 Westinghouse Electric Corp. Method of welding aluminum alloys
JPH04270088A (en) 1991-02-19 1992-09-25 Nissan Motor Co Ltd Laser beam welding method for aluminum materials
JPH11245066A (en) * 1998-03-05 1999-09-14 Toshiba Corp Laser welding and manufacture of secondary battery
DE19849449C2 (en) * 1998-10-28 2003-05-28 Hanf Carl Elino Ind Ofenbau Method and system for connecting heat exchanger parts
JP2000141029A (en) * 1998-11-04 2000-05-23 Harness Syst Tech Res Ltd Connecting method by laser
DE602005014564D1 (en) * 2004-09-14 2009-07-02 Alcan Rhenalu WELDED STRUCTURAL ELEMENT COMPRISING AT LEAST TWO ALUMINUM ALLOY PARTS THAT HAVE VARIOUS METALLURGICAL CONDITIONS, AND METHOD FOR PRODUCING SUCH AN ELEMENT
JP4880664B2 (en) * 2007-12-28 2012-02-22 株式会社神戸製鋼所 Aluminum alloy material and battery case for pulse laser welding
CN102009325B (en) * 2010-11-07 2012-07-25 上海交通大学 Method for improving corrosion resistance of weld joint of hastelloy conductive roller
JP5847209B2 (en) * 2014-01-21 2016-01-20 株式会社神戸製鋼所 Dissimilar metal joined body and manufacturing method of dissimilar metal joined body
PL3026134T3 (en) * 2014-11-27 2018-08-31 Hydro Aluminium Rolled Products Gmbh Heat exchanger, use of an aluminium alloy and an aluminium tape and method for producing an aluminium tape
KR20190089025A (en) * 2016-12-27 2019-07-29 가부시키가이샤 고베 세이코쇼 An arc welding method for re-joining, a joining auxiliary member, a transitional welding joint, and a joining auxiliary member

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011220582A (en) 2010-04-07 2011-11-04 Denso Corp Heat exchanger
JP2014067664A (en) 2012-09-27 2014-04-17 Uacj Corp Cleaning method of battery can before sealing
JP2014216298A (en) 2013-04-30 2014-11-17 日立オートモティブシステムズ株式会社 Battery module
JP2015078399A (en) 2013-10-15 2015-04-23 株式会社Uacj Aluminum alloy heat exchanger
JP2016161158A (en) 2015-02-27 2016-09-05 昭和電工株式会社 Liquid-cooled cooling apparatus
US20170130752A1 (en) 2015-11-05 2017-05-11 Ohio State Innovation Foundation Welding methods and welded joints for joining high-strength aluminum alloys

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