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1. 发明专利

JP2003275836A Method and device for manufacturing heat exchanger 有权
标题翻译：制造热交换器的方法和装置
公开(公告)号：JP2003275836A
公开(公告)日：2003-09-30
申请号：JP2002075385
申请日：2002-03-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKAHASHI HIDEKAZU , SHIBATA TORU , KUBOTA TAKESHI , AMIMOTO TOSHIYUKI
IPC分类号： F28F1/32 , B21D53/08
摘要： PROBLEM TO BE SOLVED: To provide a heat exchanger manufacturing method of high flexibility and high-speed production of a heat exchanger comprising a unicursal refrigerant pipe of high airtight reliability by reducing the number of joints while ensuring the conventional heat exchanging performance.
SOLUTION: The heat exchanger manufacturing method of a heat exchanger having a structure of continuously joining fins to one long refrigerant pipe comprises a fin forming step, a fin arranging step, a refrigerant pipe inserting step, a refrigerant pipe expanding step, a fin separating step, a refrigerant pipe bending step, and a drying and degreasing step. In the fin arranging step, the fins are arranged in a predetermined space by using an interdigital tool of a structure of stacked plates, the tool is divided into a predetermined length. In the fin separating step, a blade of a cutting means is reliably separated in the direction opposite to the direction of the inserted refrigerant pipe when separating the fins by passing the blade of the cutting means through a through hole, and further held and fixed by a bending die of the following refrigerant pipe bending step during the cutting, and the refrigerant pipe is bent without changing the hold.
COPYRIGHT: (C)2003,JPO
摘要翻译：解决问题：提供一种通过在确保常规热交换性能的同时减少接头数量来提供包括具有高气密可靠性的单质制冷剂管的热交换器的高柔性和高速生产的热交换器制造方法。解决方案：具有将翅片连续地连接到一个长制冷剂管的结构的热交换器的热交换器制造方法包括翅片成形步骤，翅片布置步骤，制冷剂管插入步骤，制冷剂管扩张步骤，翅片分离步骤，制冷剂管道弯曲步骤以及干燥和脱脂步骤。在翅片布置步骤中，翅片通过使用堆叠板结构的叉指式工具布置在预定的空间中，该工具被分成预定的长度。在翅片分离步骤中，当通过切割装置的刀片通过通孔来分离翅片时，切割装置的刀片在与插入的制冷剂管道的方向相反的方向上可靠地分离，并且进一步由在切割期间的以下制冷剂管弯曲步骤的弯曲模具，并且制冷剂管弯曲而不改变保持。版权所有（C）2003，JPO

2. 发明专利

JP2003269880A HEAT EXCHANGER 审中-公开
公开(公告)号：JP2003269880A
公开(公告)日：2003-09-25
申请号：JP2002075386
申请日：2002-03-19
申请人： HITACHI LTD
发明人： TAKAHASHI HIDEKAZU , ISHIOKA TERUKAZU , KUBOTA TAKESHI , AMIMOTO TOSHIYUKI
IPC分类号： F28F1/32 , F25B39/00
摘要： PROBLEM TO BE SOLVED: To provide a heat exchanger with the minimum number of joints and a high degree of design freedom while maintaining conventional heat exchanging performance combining the advantages of reliability in airtightness and refrigerant leakage resistance, heat transfer performance and the high degree of design freedom. SOLUTION: In the cross fin type heat exchanger, only one refrigerant pipe is brought into contact with one independent fin. It is structured to joint the fin to one refrigerant pipe which is originally linear, and to perform planar or three-dimensional bending work the optional number of times to have an optional length. A bent part is composed of a combination of the same minimum bend radius and an optional micro linear part. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2002333259A REFRIGERATOR 失效
公开(公告)号：JP2002333259A
公开(公告)日：2002-11-22
申请号：JP2001138234
申请日：2001-05-09
申请人： HITACHI LTD
发明人： TAKAHASHI HIDEKAZU , MURAKAMI HIROSHI , KUBOTA TAKESHI , IWATA HIROSHI
IPC分类号： F25D19/00 , F25B39/04 , F25D11/00 , F25D23/00
摘要： PROBLEM TO BE SOLVED: To achieve the improvement of condensation performance and the energy saving by suppressing the reduction of the quantity of heat radiation even if fluff, etc., adhere to the suction side of a condenser in a machine room, and concentrating condenser functions in the condenser in the machine room. SOLUTION: This refrigerator is equipped with a compressor 16 and a blower 17 in a machine room which compulsively ventilates the condenser 18 in the machine room, and a cross-fin-tubes-in-plural-rows type of heat exchanger is used for the condenser 18 in the machine room, and the plate-shaped fins 18b are independent separately for each row, and space is provided between the rows, and fixers are provided on both sides of the condenser 18 in the machine room, and the fixer 33 on one side is fixed to the side of a bottom plate which forms the machine room, and also the fixer 34 on the other side is fixed to the side of the refrigerator main body 1, and the refrigerant pipe 18a of the condenser 18 in the machine room is arranged to rise within the machine room 22.

4. 发明专利

JP2002333258A REFRIGERATOR 失效
公开(公告)号：JP2002333258A
公开(公告)日：2002-11-22
申请号：JP2001138235
申请日：2001-05-09
申请人： HITACHI LTD
发明人： MURAKAMI HIROSHI , TAKAHASHI HIDEKAZU , KUBOTA TAKESHI , IWATA HIROSHI
IPC分类号： F25D19/00 , F25D23/00
摘要： PROBLEM TO BE SOLVED: To secure the operation performance of a refrigerator by enhancing the performance of a condenser in a machine room thereby contriving the power saving, and suppressing the drop of the performance of the condenser in a machine room even if the suction side of the condenser in the machine room is clogged. SOLUTION: A cross fin type of heat exchanger, where many plate-shaped fins 18b are juxtaposed on a refrigerant pipe 18a made in zigzag, is used as a condenser 18 in the machine room, and a blower 17 in the machine room is constituted of a propeller-type blower which is projected toward the side of the condenser 18 in a machine room from a mouth ring 41, and the periphery of a passage leading to the blower 17 in the machine room from the condenser 18 in the machine room is shut off to make a half-sealed space which opens at the section of the blower 17 in the machine room and the section of the blower 17 in the machine room, and it is arranged so that the face having wire area of the condenser 18 in the machine room may face the half-sealed space.

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