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81. 发明专利

JPS6489452A BOILING AND COOLING APPARATUS 失效
公开(公告)号：JPS6489452A
公开(公告)日：1989-04-03
申请号：JP24381887
申请日：1987-09-30
申请人： HITACHI LTD
发明人： SAITO HIDEJI , TOKUNAGA YOSHIKATSU
IPC分类号： F25B23/00 , F28D15/02 , H01L23/427 , H05K7/20
摘要： PURPOSE:To smooth the returning of liquefied refrigerant into an evaporating container and to keep a stabilized cooling effect, by leading out the end of the returning path on the side of the evaporating container to the outside from the vicinity of the connecting part of the evaporating container and a connecting pipe line, and providing a hole at the bottom part of the evaporating container for the returning path. CONSTITUTION:A connecting pipe part 4P, which is provided at the lower part of a first header 4A of a condenser 3, and a connecting pipe part 1P are connected with a connecting pipeline 6. A liquid returning pipe 9 constituting a liquid returning path is provided in the pipeline 6 along the entire length. One end of the pipe 9, which exceeds the connecting pipeline 6, is branched from the connecting pipe part 1P of the container 1 and led to the outside. Then, the said one end enters into the inside of the container through a hole at the bottom of the container. The other end of the pipe 9 enters into the header 4A through a hole. In this constitution, the evaporating amount of refrigerant in the container 1 is less when the amount of heating from a semiconductor element 2 is less. The liquefied refrigerant in the condenser 3 is returned into the container 1 through the pipeline 6 and the liquid returning pipe. When the amount of heating is increased, most of the liquefied refrigerant is returned into the container 1 through the liquid returning pipe. Thus, disappearance of the liquid in the evaporating container is prevented, and the stabilized cooling effect is obtained.

82. 发明专利

JPS62239559A SEMICONDUCTOR COOLER 失效
公开(公告)号：JPS62239559A
公开(公告)日：1987-10-20
申请号：JP8208986
申请日：1986-04-11
申请人： HITACHI LTD
发明人： SAITO HIDEJI
IPC分类号： H01L23/44 , H01L23/58 , H01L25/11 , H05K9/00
摘要： PURPOSE:To reduce the leakage of magnetic flux generated from the semiconductor and the wiring in a stack by covering the semiconductor stack consisting of a GTO thyristor, a free foil diode and a cooling fin with a small electric resistance nonmagnetic material. CONSTITUTION:A semiconductor stack 19 is formed by laminating a required number of GTO thyristors 8, 9, tree foil diodes 9, 10 and a cooling fin 23. A shield case 21 is made of aluminum or copper to cover all the surface of the stack 19 and a wiring 22 except a bushing tor connection. This reduces the leakage of magnetic flux generated from the semiconductor and the wiring 22 in the stack 19.

83. 发明专利

JPS62123902A INVERTER DEVICE FOR ELECTRIC VEHICLE 失效
公开(公告)号：JPS62123902A
公开(公告)日：1987-06-05
申请号：JP26118385
申请日：1985-11-22
申请人： HITACHI LTD
发明人： SAITO HIDEJI , HORIE SATORU , USUI YOSHINORI , ITAHANA HIROSHI
IPC分类号： B60L3/00
摘要： PURPOSE:To reduce an inductive interference to a ground signal facility by twisting and unifying load lines to a three-phase induction motor connected from an inverter device at regular intervals and wiring them. CONSTITUTION:Power received by a pantagraph 2 is fed to an induction motor 18 through an inverter device 4 and load lines 19-21. The load lines 19-21 are twisted and unified at the pitches of one over the even times of the length lof a loop coil for a receiving appliance and wired. Accordingly, electromagnetic inductive noises can be reduced without adding special members.

84. 发明专利

JPS6152022B2 失效
公开(公告)号：JPS6152022B2
公开(公告)日：1986-11-11
申请号：JP16536680
申请日：1980-11-26
申请人： HITACHI LTD
发明人： SATO TOSHIO , SAITO HIDEJI , ITAHANA HIROSHI
IPC分类号： B61C17/12 , H05K5/02

85. 发明专利

JPS6012843B2 失效
公开(公告)号：JPS6012843B2
公开(公告)日：1985-04-03
申请号：JP7087878
申请日：1978-06-14
申请人： HITACHI LTD
发明人： YAMADA YUKIO , SAITO HIDEJI
IPC分类号： B60L15/00 , B60L15/20

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