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61. 发明专利

JPH02152263A BOILING COOLING DEVICE 失效
公开(公告)号：JPH02152263A
公开(公告)日：1990-06-12
申请号：JP30656588
申请日：1988-12-02
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAMEDA TAKU , TERAGUCHI NOBUYUKI
IPC分类号： H01L23/44
摘要： PURPOSE:To obtain a compact, lightweight boiling-cooling device at a low manufacturing cost as it requires a limited quantity of refrigerants by forming an insulation sheet or layer between a stack and the base of a vessel and removing the refrigerants which remain at the lower part of the stack. CONSTITUTION:An insulating sheet 10 is disposed between a stack 3 and the base of a vessel 1. This configuration reduces refrigerants at the lower part of the stack 3 to a minimum. As the stack 3 is located at the lowest part of the vessel, its location makes the height of the vessel low. Since the insulating sheet insulates an electrically charged part completely from a grounding part, the installation of the insulating sheet makes it possible to remove the insulating space between a heating substance and the vessel; besides, it lowers the housing positions of the stack to the lowest part of the vessel and then a limited quantity of the refrigerants is required to be housed. A compact, lightweight cooling device having a low vessel is thus obtained.

62. 发明专利

JPH01233747A SEMICONDUCTOR DEVICE WITH COOLING APPARATUS 失效
公开(公告)号：JPH01233747A
公开(公告)日：1989-09-19
申请号：JP6143388
申请日：1988-03-14
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAMEDA TAKU
IPC分类号： H01L25/11 , H01L23/427 , H01L23/46
摘要： PURPOSE:To easily exchange a semiconductor element by a method wherein a part between a through hole part of a mounting plate and a heat pipe is sealed by laying a flexible sealing body in order to prevent dust, rainwater or the like from penetrating into a control apparatus box from the outside. CONSTITUTION:At a flexible sealing body 31 where a bellows has been formed and which is composed of a rubber material, a brim part on one end is bonded to a through hole 14a of a mounting plate 14 by using an adhesive or the like and the other end is closely put into a heat pipe 3. When a semiconductor element 1 becomes defective and is to be exchanged, a locking bolt 13 is loosened; an interval (A) between a metal block 2 and another metal block 2 is widened; the defective element 1 is taken out as shown by an arrow and is replaced with a new element 1. Although the pipe 3 is shifted inside the through hole 14a, the sealing body 31 is bent freely, and no trouble is caused. By this setup, it is prevented that dust, rainwater or the like penetrates into a control apparatus box from the outside; the element 1 can be exchanged easily.

63. 发明专利

JPS6152349B2 失效
公开(公告)号：JPS6152349B2
公开(公告)日：1986-11-12
申请号：JP402081
申请日：1981-01-14
申请人： MITSUBISHI ELECTRIC CORP
发明人： TETSUNO HARUO , KAMEDA TAKU
IPC分类号： F16K17/14 , F16K17/16 , F16K37/00

64. 发明专利

JPS5793554A COOLING DEVICE FOR SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPS5793554A
公开(公告)日：1982-06-10
申请号：JP17057780
申请日：1980-12-02
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAMEDA TAKU , TETSUNO HARUO , MIKANE TOSHIO
IPC分类号： H01L23/427
摘要： PURPOSE:To enhance the coolant circulating speed and to improve the cooling performance of a cooling device for a semiconductor device by disposing a coolant collecting tank of the device higher in liquid level than the coolant liquid surface in a liquid reservoir. CONSTITUTION:An evaporator 1 contacted under pressure with a semiconductor element and a liquid reservoir 5 for storing a condensing coolant 4 are continuously sealed with coolant to the prescribed height in the liquid reservoir, a header 7 having a cooling tube 8 for liquefying the evaporated coolant is provided above the reservoir, and a collection tank 10 for collecting the coolant 12 thus liquefied is so disposed as to be higher than the liquid surface of the coolant 4 of the reservoir 5 with a transport tube 13. Thus, the coolant circulating speed can be improved in the cooling device for the semiconductor device.

65. 发明专利

JPH0497555A EVAPORATIVE COOLING DEVICE 失效
公开(公告)号：JPH0497555A
公开(公告)日：1992-03-30
申请号：JP21504890
申请日：1990-08-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKAHASHI NOBUYOSHI , KAMEDA TAKU
IPC分类号： F28D15/02 , H01L23/427
摘要： PURPOSE:To acquire stable cooling performance by detecting abnormal rise of a pressure in a space part based on a operation state of the operation part which works in accordance with a pressure of the space part on a liquid surface of coolant and by controlling leakage of air. CONSTITUTION:When air enters a device and a pressure of a space part 12 rises when a thyrister element 6 is cooled, a bellows 11 expands against a spring 15. When the pressure rise attains a set value, a movable contact 17 comes into contact with a fixing contact 18. Thereby, an abnormal pressure rise is detected by a detector 19, and an alarm is sounded by an alarm 20. Leakage of air into the device can be controlled through such operation of an operation part 16 and an abnormality detecting part 21, thereby preventing lowering of cooling performance caused by the leakage and providing more stable cooling performance to coolant 2 which consists of water or ethylene glycol water solution.

66. 发明专利

JPH0471303A CONTROLLER FOR ELECTRIC VEHICLE 失效
公开(公告)号：JPH0471303A
公开(公告)日：1992-03-05
申请号：JP18629890
申请日：1990-07-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAMEDA TAKU
IPC分类号： H02M5/45 , B60L9/24
摘要： PURPOSE:To reduce the weight and to simplify the structure by employing a unit constituted of a main circuit arm comprising two semiconductor elements connected in series for formation of a converter and an inverter, containing each unit in a container having same shape and then connecting the unit. CONSTITUTION:Two semiconductor elements 5, 5 are connected in series to constitute a main circuit arm 6 and a single unit 17 is constituted of main circuit arms 6 for two phases. AC voltage collected 2 from an overhead line 3 is transformed through two transformers 1 thence fed to the units 17 in a converter 4, and then DC outputs from the units 17 are connected in parallel and fed to an inverter 7. The inverter 7 comprises a single unit 17 identical to that in the converter 4 and a unit 19 including the main circuit arm 6 and an overcurrent protective circuit 9, and the inverter 7 produces three-phase VVVF power U-W for driving an induction motor 8. The units 17, 19 are contained in identical containers 18. According to the constitution, wiring is simplified, component can be employed commonly resulting in reduction of the size and the weight.

67. 发明专利

JPH0376256A SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPH0376256A
公开(公告)日：1991-04-02
申请号：JP21352389
申请日：1989-08-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAMEDA TAKU
IPC分类号： H01L23/40
摘要： PURPOSE:To decrease a device of this design in maximum external shape and to improve a cooler in utilization factor so as to make the device small and lightweight by a method wherein two or more semiconductor elements electrically connected in parallel are arranged in parallel, and the semiconductor elements are pressure-welded as sandwiched between a pair of coolers provided at both the sides of the elements concerned. CONSTITUTION:GTO 1 and GTO 2 and DF 1 an DF 2 are arranged in parallel in two stages. Coolers, 16A, 16B, and 16C, are so structured to collectively cool the semiconductor elements 1 and 2 arranged in parallel. That is, the DF 1 and the GTO 2 electrically connected together in parallel are collectively pinched with the coolers 16A and 16B, and the DF 2 and the GTO 2 electrically connected together in parallel are collectively pinched with the coolers 16B and 16C to be cooled. Therefore, a clamping device 10 is formed in a two-stage structure, bolts 11 can be reduced in length by a certain value correspondent to the two-stage structure concerned, and an enough pressure-welding force can be obtained. A device of this design can be lessened in maximum external shape as an inverter device.

68. 发明专利

JPS62160747A VAPORIZATION COOLING APPARATUS OF ELECTRIC EQUIPMENT 失效
公开(公告)号：JPS62160747A
公开(公告)日：1987-07-16
申请号：JP247286
申请日：1986-01-09
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAMEDA TAKU
IPC分类号： H01L23/44
摘要： PURPOSE:To improve heat radiation and to prevent the expansion and contraction of a tank drum, by forming the tank drum made of a thin plate in a zigzagging shape, thereby increasing the contact surface with refrigerant. CONSTITUTION:In a tank 7, a tank drum 7b, which is made of a thin plate, whose outer surface has a zigzagging shape 7a, is horizontally arranged. Both ends of the tank drum 7b are closed with end plates 7c. The tank drum 7b is formed by drawing a circular cylinder. The temperature of a liquid phase part 3a is increased with the heat of a semiconductor 4, which emits the heat, and the liquid is boiled. The stream of the liquid-phase part 3a, whose temperature is increased, is regulated with a guide plate 12, and convection is generated effectively. Vaporized flon gas 3 becomes a vapor phase 3b and rises up in the tank 7. Heat is absorbed by the flon 3. The heat is radiated from the approximately entire surface of the tank drum 7b in the zigzagging shape 7a. Thus the cooling efficiency can be enhanced. The expansion and contraction of the tank drum in the zigzagging shape 7a can be prevented by attaching the both end parts of the guide plate 12 to both end plates.

69. 发明专利

JPS61222297A ELECTRIC APPLIANCE BOX BODY 失效
公开(公告)号：JPS61222297A
公开(公告)日：1986-10-02
申请号：JP6204085
申请日：1985-03-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： TETSUNO HARUO , KAMEDA TAKU
IPC分类号： H05K7/00 , H02G3/16 , H05K5/02 , H05K5/03

70. 发明专利

JPS5541140A ELECTRICAL DEVICE 失效
公开(公告)号：JPS5541140A
公开(公告)日：1980-03-22
申请号：JP11261378
申请日：1978-09-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： TETSUNO HARUO , KAMEDA TAKU
IPC分类号： B60L15/00 , B60L15/20 , B61C17/12 , B61D27/00
摘要： PURPOSE:To facilitate the displacement, maintenance and checking of an electric apparatus, by attaching wheels to the bottom of the apparatus and providing a guiding unit in an outer box to support the apparatus and guide it out of the outer box. CONSTITUTION:To remove an electric blower 12, air filters 6a, 6b are taken away, a bolt 11 is pulled out of a guide 8 and the guide is moved to be horizontal. Lock bolts 13 are then removed from the electric blower 12 so that the blower is slightly displaced in the direction of an arrow 15 and wheels 14 are brought into contact with the slope of a projecting member 7. The electric blower 12 is moved further and lifted to make a gap between its bottom 12d and a mount 4. As a result, the electric blower 12 can be easily moved on a guiding unit 10 and the maintenance and checking of an electric apparatus housed in an outer box are facilitated.

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