To prevent brazing failure of a plate constituting a tube body part in a case of reducing a weight of a tube with the tube body part separated from an inner fin, and suppress interference upon inserting the tube into a tube insertion hole of a header tank.SOLUTION: A plate constituting a tube body part 50 is bent at one end part in an outside air flow direction of a first flat wall part 51 toward the other side, and bent at the other end part in the outside air flow direction of the flat wall part 51 toward the one side. A first center column part 55 and a second center column part 56 are formed at an intermediate part in the outside air flow direction of a second flat wall part 52. An overlapped part 57 is formed so as to extend from a tip part in a projection direction of the first center column part 55 toward an inner surface of a one-side end wall part 53.SELECTED DRAWING: Figure 4
【課題】チューブ本体部とインナーフィンとを別体としてチューブの軽量化を図る場合に、チューブ本体部を構成する板材のろう付け不良を抑制するとともに、ヘッダタンクのチューブ挿入孔にチューブを挿入する際の干渉を抑制する。【解決手段】チューブ本体部50を構成する板材は、第1平坦壁部51における外部空気流れ方向一端部で他側に向けて屈曲し、第1平坦壁部51における外部空気流れ方向他端部で一側に向けて屈曲する。第2平坦壁部52における外部空気流れ方向中間部において第1中柱部55及び第2中柱部56が形成される。第1中柱部55の突出方向先端部から一側端壁部53の内面に向けて延びる重なり部57が形成される。【選択図】図4
TUBE FOR HEAT EXCHANGER
熱交換器用チューブ
2019-02-07
Patent
Electronic Resource
Japanese
IPC: | F28F Einzelheiten von Wärmetauschern oder Wärmeübertragungsvorrichtungen für allgemeine Verwendung , DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION / B23K Löten , SOLDERING OR UNSOLDERING / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / F28D Wärmetauscher, soweit in keiner anderen Unterklasse vorgesehen, in denen die Wärmetauschmittel nicht in direkte Berührung miteinander kommen , HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT |