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JP7548711B2 - Heat exchanger plate and heat exchanger equipped with same - Google Patents
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JP7548711B2 - Heat exchanger plate and heat exchanger equipped with same - Google Patents

Heat exchanger plate and heat exchanger equipped with same Download PDF

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JP7548711B2
JP7548711B2 JP2020041844A JP2020041844A JP7548711B2 JP 7548711 B2 JP7548711 B2 JP 7548711B2 JP 2020041844 A JP2020041844 A JP 2020041844A JP 2020041844 A JP2020041844 A JP 2020041844A JP 7548711 B2 JP7548711 B2 JP 7548711B2
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heat exchanger
holder
plate
heat
fluid
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JP2021144823A (en
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耐事 坂井
隆行 須山
卓也 岩本
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T Rad Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Description

電池等の熱交換対象物と熱媒体との間で伝熱する熱交換器の熱媒体による耐腐食性の向上及び組立性の向上に関する。 This relates to improving corrosion resistance and ease of assembly of heat exchangers that transfer heat between heat exchange objects such as batteries and heat media.

従来、電池等の熱交換対象物と熱媒体との間で伝熱する熱交換器について下記特許文献1に記載のものが知られている。
この熱交換器は、カッププレートとその開口を閉塞する蓋プレートとがろう付固定され、その蓋プレートの一方の面が内部の冷却水(熱媒体である流体)と接触し、他方の面に部品がろう付されるものである。
現在、熱交換器の蓋プレートにおいて、冷却水(熱媒体である流体)に対するより高い耐腐食性が求められている。
2. Description of the Related Art A heat exchanger for transferring heat between a heat exchange object, such as a battery, and a heat medium is known from Japanese Unexamined Patent Publication No. 2003-233696.
This heat exchanger is constructed by brazing a cup plate to a lid plate that closes its opening, with one side of the lid plate in contact with the internal cooling water (a fluid that acts as a heat transfer medium) and components being brazed to the other side.
Currently, there is a demand for higher corrosion resistance against cooling water (a fluid that is a heat transfer medium) in the cover plates of heat exchangers.

また、図6に示す熱交換対象物として電気自動車などに使用するバッテリー5を冷却する熱交換器3は、前述の他方の面1bにホルダー4を設け、そこにバッテリー5を配置する。このホルダー4は、底面4aと、側壁4bと、底面4aに穿設された熱伝導シート9の配置溝8が設けられ、その配置溝8に熱伝導シート9が蓋となるプレート1に直接接触するように配置される。
バッテリー5から生じる熱は熱伝導シート9を介し、冷却水6と熱交換する。
6, a heat exchanger 3 for cooling a battery 5 used in an electric vehicle or the like as a heat exchange object has a holder 4 provided on the other surface 1b, in which the battery 5 is placed. The holder 4 has a bottom surface 4a, side walls 4b, and a placement groove 8 for a thermally conductive sheet 9 drilled in the bottom surface 4a, and the thermally conductive sheet 9 is placed in the placement groove 8 so as to be in direct contact with the plate 1 serving as a lid.
Heat generated from the battery 5 is exchanged with the coolant 6 via the thermally conductive sheet 9 .

特許第5982102号公報Patent No. 5982102

しかしながら、特許文献1のような熱交換器の場合、蓋プレートの冷却水と接触する面に設定されたろう材層において循環する冷却水がろう材層の全面に絶えず接触しているため、冷却水に対する蓋プレートの耐腐食性を向上させることが困難である。
また、図6のようなホルダー4の場合、熱伝導シート9を準備し、そのシート9をホルダー4の配置溝8に配置する手間がかかる。
そこで、本発明は熱交換器の耐腐食性の向上を課題とし、さらには、熱交換器にそのまま取り付けることができない熱交換対象物に対し、その組み立て性の向上を課題とする。
However, in the case of a heat exchanger such as that described in Patent Document 1, the circulating cooling water is constantly in contact with the entire surface of the brazing material layer set on the surface of the cover plate that comes into contact with the cooling water, making it difficult to improve the corrosion resistance of the cover plate against the cooling water.
In addition, in the case of the holder 4 as shown in FIG. 6, it is time-consuming to prepare the thermally conductive sheet 9 and place the sheet 9 in the placement groove 8 of the holder 4.
Therefore, an object of the present invention is to improve the corrosion resistance of a heat exchanger, and further to improve the assembly ability of a heat exchange object that cannot be directly attached to a heat exchanger.

請求項1に記載の本発明は、アルミニウム合金からなり、
その一方の面1aに熱媒体である流体6が接触し、他方の面1bに部品4がろう付され、
前記他方の面1bと前記部品4との間にZnを含んだろう材層10が設けられていることを特徴とする熱交換器用プレートである。
The present invention as set forth in claim 1 is made of an aluminum alloy,
A fluid 6, which is a heat transfer medium, is in contact with one surface 1a of the plate, and a part 4 is brazed to the other surface 1b of the plate.
The heat exchanger plate is characterized in that a brazing material layer 10 containing Zn is provided between the other surface 1b and the component 4.

請求項2に記載の本発明は、請求項1に記載の熱交換器用プレートを具備し、
その内部に前記流体6が流通し、外部に熱交換対象物5が配置され、前記流体6と前記熱交換対象物5との間で熱交換を行う熱交換器において、
前記他方の面1bには、前記部品4である熱交換対象物5のホルダーが設けられ、
前記ホルダーは平坦な底面4aを有し、
前記他方の面1bに前記ホルダーの平坦な底面4aが、前記Znを含んだろう材層10を介して面接触し、それらの間が一体的にろう付固定された熱交換器である。
The present invention according to claim 2 provides a heat exchanger plate according to claim 1,
A heat exchanger in which the fluid 6 flows inside and a heat exchange object 5 is disposed outside, and heat exchange is performed between the fluid 6 and the heat exchange object 5,
A holder for a heat exchange object 5, which is the component 4, is provided on the other surface 1b.
The holder has a flat bottom surface 4a,
The flat bottom surface 4a of the holder is in surface contact with the other surface 1b via the brazing material layer 10 containing Zn, and the two are integrally brazed to form a heat exchanger.

請求項1に記載の発明は、アルミニウム合金からなり、その一方の面1aに熱媒体である流体6が接触し、他方の面1bに部品4がろう付され、その他方の面1bと部品4との間にZnを含んだろう材層10が設けられている熱交換器用プレートである。
この構造により、熱交換器用プレートの熱媒体である流体6による孔食腐食がろう材層10まで達した際に、そのろう材層10にはプレートの孔食腐食の孔部7に浸入した流体(冷却水)6のみが接触する為、前記プレートの前記流体(冷却水)6に対する耐腐食性が向上する。
The invention described in claim 1 is a plate for a heat exchanger made of an aluminum alloy, one surface 1a of which is in contact with a fluid 6 that is a heat transfer medium, the other surface 1b of which is brazed to a component 4, and a Zn-containing brazing material layer 10 provided between the other surface 1b and the component 4.
With this structure, when pitting corrosion caused by the fluid 6, which is the heat transfer medium of the heat exchanger plate, reaches the brazing material layer 10, only the fluid (cooling water) 6 that has penetrated into the holes 7 of the pitting corrosion of the plate comes into contact with the brazing material layer 10, thereby improving the corrosion resistance of the plate to the fluid (cooling water) 6.

請求項2に記載の発明は、上記発明の熱交換器用プレートを具備する熱交換器において、前記他方の面1bに熱交換対象物のホルダーが設けられ、そのホルダーは平坦な底面4aを有し、他方の面1bにホルダーの平坦な底面4aが、Znを含んだろう材層10を介して面接触し、それらの間が一体的にろう付固定されたものである。
この構造により、熱交換器3とは別部品の被熱受容体であるホルダーを熱交換器3とろう付固定し、一体化することにより、熱交換器の組立性が向上する。
The invention described in claim 2 is a heat exchanger equipped with the heat exchanger plate of the above invention, in which a holder for a heat exchange object is provided on the other surface 1b, the holder having a flat bottom surface 4a, and the flat bottom surface 4a of the holder is in surface contact with the other surface 1b via a brazing material layer 10 containing Zn, and the two are brazed and fixed together.
With this structure, the holder, which is a separate component from the heat exchanger 3 and serves as a heat receiver, is brazed and fixed to the heat exchanger 3 to be integrated, thereby improving the ease of assembly of the heat exchanger.

本発明の熱交換器の分解斜視図(A)および組立て斜視図(B)。1A is an exploded perspective view of a heat exchanger of the present invention, and FIG. 1B is an assembled perspective view of the heat exchanger of the present invention. 図1(B)のII-II矢視断面図。FIG. 2 is a cross-sectional view taken along line II-II of FIG. 図2のIII部拡大図。FIG. 3 is an enlarged view of part III in FIG. 2 . 図2のIV部拡大図。FIG. 3 is an enlarged view of part IV in FIG. 2 . 本発明の作用を示す要部説明図。FIG. 従来型熱交換器の要部断面図。FIG. 1 is a cross-sectional view of a main portion of a conventional heat exchanger.

次に、図面に基づいて本発明の各実施の形態につき説明する。
図1(A)は本発明の熱交換器の分解斜視図であり、図1(B)はその組立て斜視図である。図2は図1(B)のII-II矢視断面図であり、図3は図2のIII部拡大図、図4は図2のIV部拡大図である。図5は本発明の作用を示す要部説明図である。
この例では、プレート1を蓋体1とし、熱媒体である流体6を冷却水6とし、熱交換対象物5をバッテリー5とし、部品4をホルダー4として説明する。
ただし、部品4をカッププレート2側に取り付ける場合、プレート1はカッププレート2に使用するプレートであってもよい。熱媒体である流体6は熱流体であってもよい。また、熱交換対象物は熱流体から吸熱するようなものであってもよい。部品4はプレート1と接触するものであればよいので、ホルダー以外のものであってもよい。
Next, each embodiment of the present invention will be described with reference to the drawings.
Fig. 1(A) is an exploded perspective view of the heat exchanger of the present invention, and Fig. 1(B) is an assembled perspective view thereof. Fig. 2 is a cross-sectional view taken along the line II-II of Fig. 1(B), Fig. 3 is an enlarged view of part III of Fig. 2, and Fig. 4 is an enlarged view of part IV of Fig. 2. Fig. 5 is an explanatory view of the main part showing the operation of the present invention.
In this example, the plate 1 is a lid 1 , the fluid 6 that is a heat transfer medium is cooling water 6 , the heat exchange object 5 is a battery 5 , and the part 4 is a holder 4 .
However, when the part 4 is attached to the cup plate 2 side, the plate 1 may be a plate used for the cup plate 2. The fluid 6 which is a heat transfer medium may be a thermal fluid. Also, the heat exchange object may be something which absorbs heat from the thermal fluid. The part 4 may be something other than a holder as long as it comes into contact with the plate 1.

本発明の熱交換器3は、図2に示す如く、周縁部2aを除く部分が凹陥した皿状のカッププレート2と、そのカッププレート2の開口を閉塞する蓋体1とからなる。
この熱交換器3の長手方向の一方の端部には、冷却水6の出入り口用の一対のパイプ11が設けられている。その内部は、図2に記載のように、カッププレート2の短手方向の中央位置に仕切部2bが設けられ、冷却水6が熱交換器3の他方の端部でUターンできるように、仕切部2bは熱交換器3の他方の端部までは伸びていない。
As shown in FIG. 2, the heat exchanger 3 of the present invention comprises a dish-shaped cup plate 2 which is recessed except for a peripheral edge portion 2a, and a lid 1 which closes the opening of the cup plate 2.
One end of the heat exchanger 3 in the longitudinal direction is provided with a pair of pipes 11 for the inlet and outlet of the cooling water 6. Inside the heat exchanger 3, as shown in Fig. 2, a partition 2b is provided at the center position in the lateral direction of the cup plate 2, and the partition 2b does not extend to the other end of the heat exchanger 3 so that the cooling water 6 can make a U-turn at the other end of the heat exchanger 3.

そして、一方のパイプ11から熱交換器3に流入した冷却水6は、熱交換器3の他方の端部でUターンし、他方のパイプ11から流出する。この例では、熱交換器3の蓋体1の外面(後述する他方の面1b)側にホルダー4が配置されている。このホルダー4は図1に示すように、その外周に側壁4bが形成されている。また、ホルダー4の短手方向の中央位置には、長手方向に伸びる仕切部4cによって2列の平坦な底面4aが形成されている。このホルダー4には、熱伝導シート9を配置するための配置溝8は形成されていない。
図1(B)に記載の如く、このホルダー4に多数のバッテリー5が整列され、これらのバッテリー5から生じた熱を流体6に伝熱し、熱交換が行われる。
The cooling water 6 that flows into the heat exchanger 3 from one pipe 11 makes a U-turn at the other end of the heat exchanger 3 and flows out from the other pipe 11. In this example, the holder 4 is disposed on the outer surface (the other surface 1b described later) side of the cover 1 of the heat exchanger 3. As shown in FIG. 1, the holder 4 has a side wall 4b formed on its outer periphery. In addition, at the center position in the short direction of the holder 4, two rows of flat bottom surfaces 4a are formed by partitions 4c extending in the longitudinal direction. The holder 4 does not have an arrangement groove 8 for arranging the thermally conductive sheet 9.
As shown in FIG. 1B, a large number of batteries 5 are aligned in the holder 4, and heat generated from these batteries 5 is transferred to the fluid 6 for heat exchange.

この実施例では、蓋体1はアルミニウム合金からなり、その一方の面1aに冷却水6が接触し、他方の面1bにホルダー4がろう付される。
この蓋体1の芯材には、予め、他方の面1bのみにZnを含んだろう材が被覆または塗布される。このろう材は、通常、使用されるろう材(Si:6.8重量%~11重量%)に、Znを0.5重量%~5重量%添加したものを使用する。
また、芯材には、JIS規格の3203合金、3003合金等を使用することができるが、芯材の材料はこれに限られるものではない。
In this embodiment, the cover 1 is made of an aluminum alloy, one surface 1a of which is in contact with the cooling water 6, and the holder 4 is brazed to the other surface 1b.
A brazing material containing Zn is coated or applied in advance only to the other surface 1b of the core material of the lid body 1. This brazing material is a brazing material that is usually used (Si: 6.8% by weight to 11% by weight) to which 0.5% by weight to 5% by weight of Zn has been added.
The core material may be made of JIS 3203 alloy, JIS 3003 alloy, or the like, but is not limited to this.

ホルダー4の材質は、バッテリー5から生じる熱を熱交換器3の蓋体1に伝熱するため、熱交換器3の蓋体1と同じ材質であることが好ましい。また、蓋体1の他方の面1bではなく、ホルダー4の芯材の蓋体1と接する面側に上記Znを含んだろう材を被覆または塗布しておいてもよい。
蓋体1とホルダー4とカッププレート2とが組み立てられて、高温の炉内で一体的にろう付固定される。蓋体1の他方の面1bとホルダー4の外面との間にZnを含んだろう材層10が設定される。
The material of the holder 4 is preferably the same as that of the lid 1 of the heat exchanger 3 in order to transfer heat generated from the battery 5 to the lid 1 of the heat exchanger 3. In addition, the surface of the core material of the holder 4 that comes into contact with the lid 1, rather than the other surface 1b of the lid 1, may be coated or applied with the brazing material containing Zn.
The lid 1, the holder 4 and the cup plate 2 are assembled and brazed together in a high-temperature furnace. A brazing material layer 10 containing Zn is set between the other surface 1b of the lid 1 and the outer surface of the holder 4.

このように組み立てられた熱交換器3は、図5に示す如く、熱交換器3の経年劣化により、蓋体1の一方の面1aに熱交換器3内に流通する冷却水6による孔食腐食が生じ、孔部7が形成される。そして、その孔部7が蓋体1の他方の面1bに設定されたろう材層10まで達した際に、そのろう材層10には蓋体1の孔食腐食の孔部7に浸入した冷却水6のみが接触する為、蓋体1の冷却水6に対する耐腐食性が向上することになる。
また、この構造は、特許第5982102号公報に記載のプレートと異なり、冷却水が流通する側の面にはろう材を被覆または塗布しないため、その分、コストや作業の手間を省くことができる。
5, in the heat exchanger 3 assembled in this manner, pitting corrosion occurs on one surface 1a of the lid 1 due to the cooling water 6 flowing through the heat exchanger 3 as a result of aging of the heat exchanger 3, forming a hole 7. Then, when the hole 7 reaches the brazing material layer 10 set on the other surface 1b of the lid 1, only the cooling water 6 that has entered the hole 7 of the pitting corrosion of the lid 1 comes into contact with the brazing material layer 10, so that the corrosion resistance of the lid 1 against the cooling water 6 is improved.
Furthermore, unlike the plate described in Japanese Patent No. 5,982,102, this structure does not cover or apply brazing material to the surface through which the cooling water flows, thereby reducing costs and labor.

この熱交換器3は、別部品の伝熱性のあるホルダー4を熱交換器3とろう付固定し、一体化されている。
そして、このホルダー4は、図6に記載の熱交換器のホルダーとは異なり、熱伝導シート9を配置するための配置溝8が形成されていない平坦な底面4aを形成しているので、バッテリー5を配置する際、その組立性が向上する。
この例のホルダー4は方形に形成され、その短手方向の中央位置に仕切部4cが形成されているが、バッテリーの形状などにより、ホルダー4の形状は異なるため、それ自体に伝熱性があり、熱伝導シート9を配置するための配置溝8が形成されていない平坦な底面4aを有していれば、その他のホルダー4の形状の変更は可能である。
The heat exchanger 3 is integrated with a separate heat-conductive holder 4 by brazing it to the heat exchanger 3 .
Furthermore, unlike the heat exchanger holder shown in Figure 6, this holder 4 has a flat bottom surface 4a that does not have an arrangement groove 8 for placing a thermal conductive sheet 9, which improves assembly when placing the battery 5.
In this example, the holder 4 is formed in a square shape with a partition 4c formed in the center of its short side, but since the shape of the holder 4 varies depending on the shape of the battery, etc., the shape of the holder 4 can be changed to other shapes as long as it has heat conductivity itself and a flat bottom surface 4a without an arrangement groove 8 for placing a thermal conduction sheet 9.

1 蓋体(プレート)
1a 一方の面
1b 他方の面
2 カッププレート
2a 周縁部
2b 仕切部
3 熱交換器
1 Lid (plate)
1a One surface 1b Other surface 2 Cup plate 2a Periphery 2b Partition 3 Heat exchanger

4 部品(ホルダー)
4a 底面
4b 側壁
4c 仕切部
5 バッテリー(熱交換対象物)
4 Parts (holder)
4a Bottom surface 4b Side wall 4c Partition 5 Battery (heat exchange object)

6 熱媒体である流体(冷却水)
7 孔部
8 配置溝
9 熱伝導シート
10 ろう材層
11 パイプ
6 Heat transfer fluid (cooling water)
7 Hole 8 Arrangement groove 9 Heat conductive sheet 10 Brazing material layer 11 Pipe

Claims (2)

アルミニウム合金からなる熱交換器用プレート(1)であって
熱交換器用プレート(1)の一方の面(1a)に熱媒体である流体(6)が接触し、
熱交換器用プレート(1)の他方の面(1b)と、熱交換対象物(5)が配置されるホルダー(4)の平坦な底面(4a)とがろう付され、
熱交換器用プレート(1)の他方の面(1b)とホルダー(4)の平坦な底面(4a)との間にZnを含んだろう材層(10)が設けられている
ことを特徴とする熱交換器用プレート(1)
A heat exchanger plate (1) made of an aluminum alloy,
A fluid (6) which is a heat transfer medium is in contact with one surface (1a) of the heat exchanger plate (1) ,
The other surface (1b) of the heat exchanger plate (1) is brazed to a flat bottom surface (4a) of a holder (4) on which a heat exchange object (5) is placed ,
A brazing material layer (10) containing Zn is provided between the other surface (1b ) of the heat exchanger plate (1) and the flat bottom surface (4a) of the holder (4) .
A plate for a heat exchanger (1) characterized in that
アルミニウム合金からなり、
その一方の面(1a)に熱媒体である流体(6)が接触し、他方の面(1b)に部品(4)がろう付され、
他方の面(1b)と部品(4)との間にZnを含んだろう材層(10)が設けられている熱交換器用プレート(1)を具備し、
その内部に体(6)が流通し、外部に熱交換対象物(5)が配置され、体(6)と交換対象物(5)との間で熱交換を行う熱交換器において、
方の面(1b)には、品(4)である熱交換対象物(5)のホルダー(4)が設けられ、
ホルダー(4)は平坦な底面(4a)を有し、
方の面(1b)にルダー(4)の平坦な底面(4a)が、Znを含んだろう材層(10)を介して面接触し、それらの間が一体的にろう付固定された熱交換器。
Made of aluminum alloy,
A fluid (6) which is a heat transfer medium is in contact with one surface (1a) of the plate, and a part (4) is brazed to the other surface (1b).
The heat exchanger plate (1) has a Zn-containing brazing layer (10) provided between the other surface (1b) and the part (4),
A heat exchanger in which a fluid (6) flows inside and a heat exchange object (5) is disposed outside, and in which heat exchange is performed between the fluid (6) and the heat exchange object (5),
On the other surface (1b), a holder (4) for a heat exchange object (5) which is a part (4) is provided;
The holder (4) has a flat bottom surface (4a),
The flat bottom surface (4a) of the holder (4) is in surface contact with the other surface (1b) via a Zn-containing brazing material layer (10), and the two are brazed together to form a heat exchanger.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150027679A1 (en) 2012-01-18 2015-01-29 Holtec International Finned tube assemblies for heat exchangers
JP2015041418A (en) 2013-08-20 2015-03-02 トヨタ自動車株式会社 Battery temperature control device
JP2018025319A (en) 2016-08-08 2018-02-15 株式会社デンソー Thermal switch device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01202393A (en) * 1988-02-08 1989-08-15 Mitsubishi Alum Co Ltd Aluminum alloy brazing filler metal and its manufacture
JPH07174482A (en) * 1993-12-21 1995-07-14 Zexel Corp Laminated type heat exchanger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150027679A1 (en) 2012-01-18 2015-01-29 Holtec International Finned tube assemblies for heat exchangers
JP2015041418A (en) 2013-08-20 2015-03-02 トヨタ自動車株式会社 Battery temperature control device
US20160204488A1 (en) 2013-08-20 2016-07-14 Toyota Jidosha Kabushiki Kaisha Temperature controller for battery
JP2018025319A (en) 2016-08-08 2018-02-15 株式会社デンソー Thermal switch device

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