专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH07211179A ARC EXTINGUISHING DEVICE 失效
公开(公告)号：JPH07211179A
公开(公告)日：1995-08-11
申请号：JP459794
申请日：1994-01-20
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： KAGAWA TAKUYA , TAKAYAMA SHINJI , HIRAO AKIHIKO , AOYAMA YOICHI
IPC分类号： H01H9/34 , H01H9/36 , H01H33/08 , H01H73/18
摘要： PURPOSE:To facilitate cooling of arcs and enhance the arc extinguishing performance by furnishing an arc commutation part in a position on the side with a movable contacting piece, and elongating this arc commutation part a certain distance backward from the position where the movable contacting piece stops at the time of pole opening. CONSTITUTION:When a stationary contact A1 and movable contact B1 which are closed, are turned into open state, arcs Z are generated between the two contacts A1, B1 and run over arc commutation parts 1, 2 to receive a magnetic attraction force generated by electromagnetic path parts 5, 6 in the direction of the arc commutation parts 1, 2, and thereto current is commutated. Arc Z forms a W-shaped electromagnetic path with the arc Z between the stationary contact A1 and arc commutation part 1, the electromagnetic path parts, 5, 6, and the arc Z between the movable contact B1 and arc commutation part 2, and electromagnetic repulsive forces are generated in the arcs Z's in the directions shown by the respective arrows. Therefore, the arc Z on the side with the movable contact B1 moves to near the intersection D, which is generated by drawing down from the position, where the movable contacting piece B stops, to the arc commutation part 2, by moving the arc commutation part 2 till the intersection D, and arcs Z are cooled and extinguished.

2. 发明专利

JPH06196078A CIRCUIT BREAKER 失效
公开(公告)号：JPH06196078A
公开(公告)日：1994-07-15
申请号：JP34665292
申请日：1992-12-25
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HIRAO AKIHIKO , AOYAMA YOICHI , SAWADA TOMOYUKI , HIROSHIMA TATSUO , MATSUOKA YUKIHIRO
IPC分类号： H01H71/02 , H01H73/06
摘要： PURPOSE:To provide a circuit breaker in which the insulated deteriorated part of a gas discharge passage is never touched by the hand, and a circuit breaker capable of ensuring insulating performance. CONSTITUTION:In a circuit breaker, a contact device 11, a contact opening and closing mechanism part 16, an abnormal current detecting device 20, and the like are housed in an insulating material case 1, and the case 1 is provided with a gas exhaust passage 4 communicating with a contact housing chamber 3 to exhaust the gas generated at contact opening and closing operation. The gas exhaust passage 4 has first and second exhaust passages 5, 6, and diameter enlarged parts 7, 8 larger by a determined quantity than the inside profiles forming the first and second discharge passages 5, 6 and having a determined depth are further formed on their outside end part.

3. 发明专利

JPH0676726A CIRCUIT BREAKER 失效
公开(公告)号：JPH0676726A
公开(公告)日：1994-03-18
申请号：JP23121992
申请日：1992-08-31
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： AOYAMA YOICHI , HIRAO AKIHIKO , SAWADA TOMOYUKI , HIROSHIMA TATSUO , MATSUOKA YUKIHIRO
IPC分类号： H01H73/06
摘要： PURPOSE:To prevent the formation of a shunt circuit by providing a holding projection in the cover of a mounting frame side and also providing a receiving hole to be fit for the small part of the holding projection in the cover of the opposite side to the mounting frame side. CONSTITUTION:A positioning hole 24 is formed in a mounting frame 2 and at the same time a rotation hole 42 which is smaller than the hole 24 is formed in the base end of a cradle 5. Also, a holding projection 17 having a small part 19 to be fit for the hole 42 of the cradle 5 at the tip end of a part 18 is provided in the cover 7 of the frame 2 side, and at the same time further a receiving hole 21 to be fit for the part 19 of the projection 17 is provided in the cover 8 of the opposite side to the position of the frame 2. And since the position of the frame 2 and the position of the cradle 5 relative to a body 1 are determined with the projection 17, the mutual position of an operating handle 3, a movable contact element 30 and a bimetal 22 which are positioned with the frame 2 relative to the cradle 5 is stably determined, this circuit breaker may be made an opening and closing mechanism which is small in the dispersion of dimensions.

4. 发明专利

JPH0666842A CURRENT DETECTING DEVICE 失效
公开(公告)号：JPH0666842A
公开(公告)日：1994-03-11
申请号：JP21918992
申请日：1992-08-18
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： OIDO TOSHIHIRO , AOYAMA YOICHI , MATSUDA JUNICHI
IPC分类号： G01R19/00
摘要： PURPOSE:To facilitate the wiring between a current transformer and a zero- phase current transformer, and indicate or externally transmit cable run information without requiring another equipment. CONSTITUTION:A current detecting circuit 3 outputs a first detection signal corresponding to the current value detected by current transformers 9 interposed in R-phase and T-phase cable runs 23 except S-phase to a control circuit 5, and a leak current detecting circuit 4 outputs a second detection signal corresponding to the zero-phase current value detected by a zero-phase current transformer 10 to the control circuit 5. The control circuit 5 converts the first and second detecting signals into digital signals, determines the cable run information containing the current value and leak current value of the cable runs 23, and outputs it to a display circuit 6 and a transmission circuit 7. The information transmitted to the display circuit 6 is displayed on a display part 13, and the information transmitted to the transmission circuit 7 is outputted to an external monitoring equipment such as a central monitoring board.

5. 发明专利

JPH0532848B2 失效
公开(公告)号：JPH0532848B2
公开(公告)日：1993-05-18
申请号：JP8473586
申请日：1986-04-11
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： TSUJI MASAYUKI , TAKEGAWA YOSHINOBU , YAMADA SHUJI , AOYAMA YOICHI , HORIUCHI KENICHIRO
IPC分类号： H01H1/023 , C22C5/06 , H01H1/02 , H01H11/04

6. 发明专利

JPH0547285A CIRCUIT BREAKER 失效
公开(公告)号：JPH0547285A
公开(公告)日：1993-02-26
申请号：JP20793791
申请日：1991-08-20
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HIRAO AKIHIKO , AOYAMA YOICHI , KOSAKA SHIGEO
IPC分类号： H01H71/08 , H01H73/02
摘要： PURPOSE:To provide a circuit beaker with which insulation between a neutral pole and a voltage pole can be secured easily with a simple structure and assembling and without increasing the size. CONSTITUTION:A case 1, a pair of voltage pole terminals 2, 3 provided at the case 1, a pair of neutral pole terminals 7, 8, a breaker mechanism part 40 contained in the case 1 of which cable way parts are connected with the voltage pole terminals 7, 8, and a neutral pole conductor 60 contained in a recessed part 63 formed in an outer surface of the case 1 and connected with the neutral pole terminals 7, 8 at both ends are provided.

7. 发明专利

JPH0514368B2 失效
公开(公告)号：JPH0514368B2
公开(公告)日：1993-02-24
申请号：JP33288187
申请日：1987-12-23
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： SAWADA TOMOYUKI , OOMURO MASARU , AOYAMA YOICHI
IPC分类号： H01H9/34 , H01H73/18

8. 发明专利

JPH0479091B2 失效
公开(公告)号：JPH0479091B2
公开(公告)日：1992-12-15
申请号：JP10334685
申请日：1985-05-15
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： AOYAMA YOICHI
IPC分类号： H01H71/54 , H01H73/22

9. 发明专利

JPH0477405B2 失效
公开(公告)号：JPH0477405B2
公开(公告)日：1992-12-08
申请号：JP24153387
申请日：1987-09-26
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： ICHIMURA YASUO , OGINO YUTAKA , AOYAMA YOICHI , MATSUSHITA HIDETOSHI , KAWASAKI KENJI
IPC分类号： H01H1/20

10. 发明专利

JPH0445926B2 失效
公开(公告)号：JPH0445926B2
公开(公告)日：1992-07-28
申请号：JP27223486
申请日：1986-11-14
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： AOYAMA YOICHI
IPC分类号： H01H73/18 , H01H9/44

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式