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1. 发明专利

JPH0670442A POWER CABLE CONNECTOR 失效
公开(公告)号：JPH0670442A
公开(公告)日：1994-03-11
申请号：JP23257992
申请日：1992-08-10
申请人： TOKAI RYOKAKU TETSUDO KK , HITACHI CABLE
发明人： SHIBUYA SUSUMU , HAGIWARA YOSHIYASU , MATSUSHIMA TAKASHI , SASAKI MASAYUKI
IPC分类号： H02G15/013 , H02G15/10 , H02G15/103
摘要： PURPOSE:To facilitate the attaching and detaching operation of a power cable by winding a waterproof tape around a waterproof fitting holding an 0-ring between at the end of a spring unit pressing the rear of rubber-molded stress corn with a conical tip coming into contact with an epoxy insulator surrounding the junction of the core conductor of the power cable. CONSTITUTION:The end of a power cable 1 is stripped stepwise, an exposed cable conductor is connected, and the periphery of the conductor is surrounded by an epoxy insulator 6. A rubber-molded stress cone 8 with a conical tip is inserted into a taper part formed between the epoxy insulator 6 and conductor and pressed from the rear of the stress cone by a spring unit 9. In this case, a spring unit-compressing fitting 13 having a stepped part engaging with the spring unit 9 in the inner peripheral face is inserted beforehand into the power cable 1, moved to the left side and the flange of the fitting is fastened to a protective case 7 by a bolt 11, a waterproof fitting 15 holding an 0-ring 14 between by the end on the opposite side is slided, and a waterproof tape 12 is wound around the fitting 15 for waterproofing. Thus, the separation and contact of the power cable is performed easily.

2. 发明专利

JPH0670441A CAR COUPLER-TYPE CABLE CONNECTOR 失效
公开(公告)号：JPH0670441A
公开(公告)日：1994-03-11
申请号：JP23258092
申请日：1992-08-10
申请人： TOKAI RYOKAKU TETSUDO KK , HITACHI CABLE
发明人： ISHIZU KAZUMASA , SHIBUYA SUSUMU , HAGIWARA YOSHIYASU , SASAKI MASAYUKI , MATSUSHIMA TAKASHI , TAZAWA SACHIO
IPC分类号： H02G15/10
摘要： PURPOSE:To shorten an operating time by fastening the tapered parts at both ends of a rubber-molded insulation cylinder inserted over the junction of a vehicle high-tension power cable simultaneously from both sides by spring units arranged in a taper shape and by fastening the outer periphery of the junction through a cap nut. CONSTITUTION:Power cabled 1, 1' to be connected are stripped stepwise and exposed cable conductors 2, 2' are inserted into negative-form and positive-form conductor contacts 24 and 23 and pressed to connection. A rubber-molded insulation cylinder 20 having a shield fitting 20a and tapered both ends is put on the outer periphery. Then, spring units 21, 21' inserted over respective cable sheathings are brought into contact with the taper face of the insulation cylinder 20 and the protective cases 25, 25' having stepped parts engaging with the spring units 21, 21' are moved from both sides to the junctions of the cables and connected with each other, and fastened by cap nuts 26. O-rings 19 are held between the sliding faces of the protective cases 25, 25' and tight fittings 28, 28'. Thus, an operating time for separation and contact is shortened.

3. 发明专利

JPH10243541A CABLE HEAD OR POWER CABLE TERMINAL PORTION 失效
公开(公告)号：JPH10243541A
公开(公告)日：1998-09-11
申请号：JP4177097
申请日：1997-02-26
申请人： HITACHI CABLE
发明人： MATSUSHIMA TAKASHI , SASAKI MASAYUKI , GOTO YOSHINORI , YAMASHITA SEIICHI , KOBAYASHI NOBUHIRO , HANAZONO SETSUO
IPC分类号： H02G15/064
摘要： PROBLEM TO BE SOLVED: To make it possible to prevent bubbles from accumulating in a bellmouth section outside an epoxy insulator, by completely burying the bellmouth-structure portion of the epoxy insulator in an epoxy insulator. SOLUTION: A cable head is formed by placing a molded epoxy insulator 2 on a center conductor 1 at a point in a porcelain tube 5 where insulating compound 4 is filled, and the epoxy insulator 2 has bellmouth structure on the surface side. Semi-conductive paint 3 is applied to this structural portion in order to use the structural portion for electric field mitigation. A recess formed as the result of the bellmouth structure is completely filled with an epoxy insulator 6. An epoxy insulator 6 formed in advance may be used for filling; however, it is preferable that the epoxy insulator for filling should be formed on the epoxy insulator by molding additional epoxy resin. As a result, it is possible to prevent bubbles from accumulating in the bellmouth section outside the epoxy insulator when insulating compound is injected into between the epoxy insulator and the porcelain tube.

4. 发明专利

JPH0851717A OUTDOOR CABLE HEAD 失效
公开(公告)号：JPH0851717A
公开(公告)日：1996-02-20
申请号：JP18618694
申请日：1994-08-08
申请人： HITACHI CABLE
发明人： MATSUSHIMA TAKASHI , TAZAWA SACHIO
IPC分类号： H02G15/02
摘要： PURPOSE:To obtain an outdoor cable head which can be fixed in an arbitrary attitude, while reducing the weight, by employing an epoxy unit, embedded with a conductive rod to be inserted with the conductor part at the stepwise stripped end part of a cable, as the main body of a bushing and making it possible to replace a finned bushing made of rubber or plastic on the surface of the epoxy unit. CONSTITUTION:A stress cone 16 is mounted onto an insulator part 15a where a cable 15 is stripped stepwise and a wedge metal 17 is press fitted to a conductor part 15b. A bushing corresponding to a terminal part 15E stripped stepwise principally comprises an epoxy unit 19 embedded with a conductive rod 18 and applied with a finned bushing 20 made of rubber. The epoxy unit 19 has tapered outer circumferential surface which is fitted tightly with the inner circumferential surface of the tinned bushing 20. It is secured, at the upper end thereof, to the conductive rod 18 through a bolt 21 and, at the lower end thereof, to a flange 23 through a bolt 22. This structure reduces the weight and facilitates the replacement of bushing while allowing a cable head to be set obliquely, horizontally or downward.

5. 发明专利

JPH05223649A ABNORMALITY DETECTION OF JUMPER WIRE 失效
公开(公告)号：JPH05223649A
公开(公告)日：1993-08-31
申请号：JP5923892
申请日：1992-02-14
申请人： HITACHI CABLE
发明人： KONO HIROMI , SASAKI MASAYUKI , MATSUSHIMA TAKASHI
IPC分类号： G01K7/16 , B60L5/00
摘要： PURPOSE:To obtain an abnormality detection method with a jumper wire improved between electric vehicles. CONSTITUTION:In an abnormality detection method of a jumper wire 5' as a crossover between electric vehicles 1, semiconductive temperature detection wires which comprise a wire produced by a mold forming integral between two conductors made parallel with a semiconductive resin are arranged along the jumper wire 5' to be adjacent to each other and housed into a flexible pipe. Then, the temperature of the jumper wire 5' is measured to detect abnormality of the jumper wire. In the semiconductive temperature detection wire, two conductors are made parallel and molded between two cores thereofwith a semiconductive resin having an organic PTC characteristic (increase in resistance proportional to the temperature) to form a wire in which the conductors have notch parts alternately at each fixed interval containing the semiconductive resin. Thus, the conductors are connected at a fixed interval through the conductive resin part and the wire obtained is connected to another wire at one end thereof to form a loop circuit.

6. 发明专利

JPH10106372A INTERMEDIATE DRAWING TYPE SUPPORTING INSULATOR 失效
公开(公告)号：JPH10106372A
公开(公告)日：1998-04-24
申请号：JP25623696
申请日：1996-09-27
申请人： HITACHI CABLE
发明人： SASAKI MASAYUKI , MATSUSHIMA TAKASHI , IKEGAMI NAOMI , MORIYA KATSUO , OTAWA KENICHI
IPC分类号： H01B17/14
摘要： PROBLEM TO BE SOLVED: To provide a supporting insulator in which a cable terminal part is directly fixed to an insulator for supporting a high voltage bus (overhead wire). SOLUTION: A supporting insulator main body 6 is made hollow, a relay conductor 62 connected to a high voltage bus 1 is inserted into the supporting insulator main body 6, a drawing port 61 is formed in the intermediate part of the supporting insulator main body 6, and a through bushing 8 is fixed in a branch state to the drawing port 61. One end of a though conductor 81 of the through bushing 8 and the relay conductor 62 are connected with the supporting insulator main body 6, and a branch cable 10 is connected to the other end of the through conductor 81 in the through bushing 8. The through bushing 8 is bonded or integrally molded to the drawing port 61 in the intermediate part of the supporting insulator main body 6. Insulating compound is filled in the hollow part of the supporting insulator main body 6 to ensure internal insulation. The supporting insulator may be an insulator for supporting a pantograph for supplying power to an electric car.

7. 发明专利

JP2000152478A FEED SYSTEM FOR ROLLING STOCK AND CABLE CONNECTING DEVICE THEREFOR 失效
公开(公告)号：JP2000152478A
公开(公告)日：2000-05-30
申请号：JP31786698
申请日：1998-11-09
申请人： HIGASHI NIPPON RYOKAKU TETSUDO , HITACHI CABLE
发明人： ABIKO HIROSHI , HOSHI KATSUYOSHI , MATSUSHIMA TAKASHI , TAKEHARA HIDEAKI
IPC分类号： B61G5/10 , H02G15/08
摘要： PROBLEM TO BE SOLVED: To reduce the number of power collectors and the noise produced when a plurality of train sets each composed of one or a plurality of serial rolling stocks are run in a state where the make-ups are connected in parallel with each other, by connecting the power cable of one train set to that of the other train set and supplying electric power from one set to the other. SOLUTION: Another train set B composed of six rolling stocks #9-#14 is connected in parallel with one train set A composed of eight rolling stocks #1-#8. After connection, the cable connecting device 5 housed in the leading stock #9 of the make-up B comes out of the stock #9 and is connected to a cable connecting device 5 housed in the leading stock #8 of the set A. Consequently, the power collector 2 and transformers 3 of both sets A and B are mutually connected and the sets A and B are collectively fed with electric power. Therefore, the installed number of the current collecting devices 2 can be reduced as compared with another set composed of the same number of rolling stocks and the noise produced when a plurality of train sets are run in a state where the sets are connected in parallel with each other can be reduced.

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