公开(公告)号：US5172762A

公开(公告)日：1992-12-22

申请号：US600869

申请日：1990-10-22

申请人： Toshiharu Shinmura ,  Nobuyasu Ando ,  Hisao Aoki ,  Naoyoshi Sutou

发明人： Toshiharu Shinmura ,  Nobuyasu Ando ,  Hisao Aoki ,  Naoyoshi Sutou

IPC分类号： F28D1/053 ,  F28F9/00 ,  F28F9/02 ,  F28F9/04

CPC分类号： F28F9/0246 ,  F28D1/05366 ,  F28F9/002 ,  F28F9/0243 ,  F28F2275/122 ,  Y10S165/485 ,  Y10T29/49373 ,  Y10T29/49389

摘要： A heat exchanger includes a pair of header pipes, tubes disposed between the header pipes, and radiation fins provided along the tubes. Each of the header pipes has a plurality of connection holes for the tubes. Each of the header pipes is formed by bending a longitudinal flat plate in the form of a pipe and connecting the side edge portions of the bent plate to each other. The side edge portions of the bent longitudinal plate have connecting portions which are connected to each other with a junction area larger than the cross-sectional area defined by the thickness and length of each header pipe at a position other than the side edge portions. The connection holes are processed before the longitudinal flat plate is bent, and therefore, can be easily and precisely formed at desired positions. The manufacture of the heat exchanger can be simplified and the cost for the manufacture can be reduced. The connection strength of the side edge portions can be increased by the larger connection area of the connecting portions. The strength of the header pipe can be maintained over a long period of time.

摘要翻译： 一个热交换器包括一对总管，设置在总管之间的管和沿着管设置的辐射翅片。 每个集管具有用于管的多个连接孔。 每个集管通过弯曲管形式的纵向平板并将弯曲板的侧边缘部彼此连接而形成。 弯曲纵向板的侧边缘部分具有彼此连接的连接部分，其接合面积大于由除了侧边缘部分之外的位置处的每个集管的厚度和长度限定的横截面积。 在纵向平板弯曲之前，连接孔被加工，因此可以容易且精确地形成在期望的位置。 可以简化热交换器的制造，并且可以降低制造成本。 通过连接部分的较大的连接面积可以增加侧边缘部分的连接强度。 集管的强度可以长时间保持。

公开(公告)号：US5119552A

公开(公告)日：1992-06-09

申请号：US656800

申请日：1991-02-19

申请人： Naoyoshi Sutou ,  Toshiharu Shinmura

发明人： Naoyoshi Sutou ,  Toshiharu Shinmura

IPC分类号： B21C37/08 ,  F28F9/02

CPC分类号： F28F9/0243 ,  B21C37/0815 ,  F28F9/0212 ,  F28F2220/00 ,  Y10T29/49389 ,  Y10T29/49391

摘要： A method for manufacturing a header pipe of a heat exchanger wherein a planar raw plate is bent to have a U-shaped cross section in a first bending step. Connection holes to which heat exchanger tubes are to be connected are opened directly on the curved portion of the U-shaped raw plate formed by the first bending step. Thereafter, the side portions of the U-shaped raw plate are bent inward to abut their terminal ends to each other. Since the connection holes are formed directly on the curved portion of the raw plate, the size and shape of a punch for opening the connection holes may be set to a size and shape corresponding to the size and shape of the end portions of the heat exchanger tubes. Thus, the desired connection holes can be formed easily and precisely. Even if a deformation occurs on the side portions of the U-shaped raw plate in the connection hole opening step, such a deformation can be corrected in a second bending step. Since only the side portions of the raw plate are bent in the second bending step and not the side portion of the raw plate having the connection holes, the connection holes which have been already formed are not distorted. Therefore, the desired connection holes can be formed with high accuracy.

摘要翻译： 一种制造热交换器的集管的方法，其中在第一弯曲步骤中将平面原料板弯曲成具有U形横截面。 要连接热交换器管的连接孔直接在由第一弯曲步骤形成的U形原料板的弯曲部分上打开。 此后，U形原料板的侧部向内弯曲以使它们的末端相互邻接。 由于连接孔直接形成在原板的弯曲部分上，所以用于打开连接孔的冲头的尺寸和形状可以被设置为与热交换器的端部的尺寸和形状相对应的尺寸和形状 管。 因此，可以容易且精确地形成期望的连接孔。 即使在连接孔打开步骤中在U形原料板的侧部发生变形，也可以在第二弯曲步骤中校正这种变形。 由于只有原料板的侧部在第2弯曲工序中弯曲而不是具有连接孔的原料板的侧部，所以已经形成的连接孔没有变形。 因此，可以高精度地形成期望的连接孔。