| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Electromagnetic tripping device | JP1935189 | 1989-01-27 | JP2845917B2 | 1999-01-13 | ANDORE RASO; PIEERU RAFUON; DONI BIAARU |
| 142 | Circuit breaker | JP34534796 | 1996-12-25 | JPH10188769A | 1998-07-21 | AIHARA KAZUYA; SHIMANO TERUMI; SATO SAKANOBU; YAMADA YUKIE; YOKOYAMA KOICHI; OSHIMA TORU; FUJITA HIDETAKA; SEKIGUCHI TOSHIHIRO |
| PROBLEM TO BE SOLVED: To provide a circuit breaker having characteristic adjustment width that is three times or more and allowing east fine adjustment. SOLUTION: The interval between a fixed core 11 and a movable core 10 and leakage magnetic flux are adjusted; at maximum settings, the leakage magnetic flux is great, the ratio of a working force Fa produced by the main magnetic flux between the cores to working force Fb+Fc produced by the leakage magnetic flux is small, and therefore a large operating current is needed to operate a trip mechanism; at minimum settings, the leakage magnetic flux is small, the ratio of the working force Fa produced by the main magnetic flux between the cores to the working force Fb produced by the leakage magnetic flux becomes large, and therefore the trip mechanism can be operated even with a small operating current. Thus, the ratio of the operating current at the minimum settings to that at the maximum settings is heightened. COPYRIGHT: (C)1998,JPO | ||||||
| 143 | Trip device for an electrical switch | JP29704190 | 1990-10-31 | JP2647740B2 | 1997-08-27 | HENDORITSUKU ADORUFU BOTSUSHU; SOEJIMAATO FURANCHESUKO DARUMOHOETOMO |
| 144 | Circuit breaker | JP20358886 | 1986-08-28 | JPH0824020B2 | 1996-03-06 | ARAN BAAKU SHINPU |
| 145 | Circuit breaker | JP20133395 | 1995-07-13 | JPH0855555A | 1996-02-27 | NOOMAN RESUTAA OOBUITSUKU; YUNNKOO CHIEN |
| PROBLEM TO BE SOLVED: To provide a circuit breaker having a magnetic tripping assembly energizing force is adjustable with respect to an armature. SOLUTION: A magnetic-tripping assembly 97 of a circuit breaker 1 includes a fixed magnetic structure body 109 attached to a frame 110 and a movable armature 111 journaled with a frame by a pin 117. A nib 113 is extended at an angle from the movable armature and the nib is provided with a detent 114. A spring-pushing plunger 121 supported by a frame is fitted in the detent to energize the armature and parts the armature from a fixed magnetic structure body, to form a gap between the armature and the magnetic structure. When the armature is attracted to the fixed magnetic structure by abnormal electric current flowing in a conductor, the plunger is parted from the detent, and a movable armature is rotated on the pin to tip the tipping bar 89 and consequently, the circuit is shut. | ||||||
| 146 | Electric current detecting device for circuit breaker | JP18984093 | 1993-07-30 | JPH0745179A | 1995-02-14 | TANAKA TAKANOBU; INOUE TAKESHI; NISHI KAZUYUKI |
| PURPOSE:To provide an electric current detecting device for a circuit breaker by which electric current value adjusting work to open forcibly contact points of the circuit breaker can be facilitated. CONSTITUTION:Plural conductive plates 1, respective fixed iron cores 2 and respective movable iron cores 3 opposing respectively to each other while sandwiching these conductive plates between them so as to be capable of freely contacting and separating and return springs 4 to energize the respective movable iron cores 3 in the opening direction from the respective fixed iron cores 2, are provided. In this electric current detecting device for a circuit breaker, these respective fixed iron cores 2 and respective movable iron cores 3 are housed respectively in the first housing member 19 and the second housing member 20, and in this first housing member 19, a distance to the second housing member 20 is made adjustable. | ||||||
| 147 | Thermal electromagnetic type trip unit having low current response characteristics | JP2832593 | 1993-02-18 | JPH05342974A | 1993-12-24 | ERITSUKU JIYON PANENBOOGU; JIYOSEFU MAIKERU PARUMIERI; REIMONDO KERUSHII SHIIMOA |
| PURPOSE: To provide a thermal electromagnetic breaker in which a low current magnetic trip response characteristics are improved. CONSTITUTION: A magnet 18 is freely turnably provided in the thermal electromagnetic trip unit 14 of a breaker so as to controllably move toward a latching armature 20. By the movement of the magnet a magnetic gap separation distance D between the magnet 18 and the latching armature 20 is reduced to optimize a magnetic trip force to improve a low current magnetic trip response characteristics. COPYRIGHT: (C)1993,JPO | ||||||
| 148 | Tripping current adjusting mechanism for circuit breaker | JP2416491 | 1991-01-24 | JPH04212231A | 1992-08-03 | MIURA MASAO; UCHIDA NAOJI; UNUMA MAKOTO |
| PURPOSE: To prevent slackness between a dial and a cam due to vibration in a tripping current adjusting mechanism, in which a gap between the armature of an overcurrent tripping device and a yoke is changed by a cam of the dial operation held by a supporting plate through an instant bar so as to adjust a tripping current. CONSTITUTION: A pulsator hole 12 is provided on a cam mounting part of a supporting plate 1, and a dial 2 and a cam 3 integrated together through an axial part 11 are fitted thereinto for being mounted. Thereby, slackness like prior constitution, in which separate parts like a dial and a cam are combine by an adhesive material or the like, is hardly generated. In this case, by supporting the rotary axis of an unillustrated instant bar by means of the supporting plate 1 for holding the cam 3, supporting members of the instant bar and the cam 3 become common so as to improve the size accuracy of the positional relation between both of them. COPYRIGHT: (C)1992,JPO&Japio | ||||||
| 149 | Trip device for electric switch | JP29704190 | 1990-10-31 | JPH03263728A | 1991-11-25 | HENDORITSUKU ADORUFU BOTSUSHIY; SOEJIMAATO FURANCHIESUKO DARUM |
| PURPOSE: To reduce a undesirable magnetic leakage area generated by the magnetic flux flow dividing means, by making the magnetically effective surface area of the magnetic flux flow dividing means at an area close to a part to be acted with a york, smaller than that of an area close to a part to be acted with a permanent magnet. CONSTITUTION: A magnetically effective surface area of a magnetic flux flow dividing plate 16 at a position close to a portion 19 to be acted with a york 1, of the plate 16, is smaller than that of a portion 20 positioned in opposition to a magnetic pole face of a permanent magnet 5, of the plate 16. The portion 20 has such a surface area that the potion 20 is hardly related to the formation of the leakage magnetic flux. On the other hand, the surface area of the portion 19 is small, so that the degree of the relation with the formation of the leakage magnetic flux, of the portion 19 is smaller than that in a case when the rectangular magnetic flux flow dividing plate is used. Thereby the magnetic activity characteristics of the plate 16 is reduced, and the demagnetization of the permanent magnet 5 can be effectively prevented. COPYRIGHT: (C)1991,JPO | ||||||
| 150 | Circuit breaker | JP26750690 | 1990-10-04 | JPH03145029A | 1991-06-20 | JIYON JIYOSEFU SHII; RICHIYAADO POORU SABORU; RUISU PEICHI; RONARUDO ANDORIYUU CHIESUKI; KENESU UEIN SANNAA; UIRIAMU ERUSUWAASU BIITEI JIYU |
| PURPOSE: To operate a device with the magnetic tripping current at a low level by providing a magnetic tripping assembly, which includes a mechanism for adjusting the energizing force of a spring and space so as to correct a current level for tripping a circuit breaker. CONSTITUTION: A magnetic tripping assembly is provided with a spring 119 for applying the energizing force to an armature 111, so as to separate the armature 111 from a fixed magnetic structural member 109 and a movable spring adjusting means 131 for adjusting the energizing force, so as to correct an abnormal current value which attracts the armature 111 to the fixed magnetic structure member 109 for unlatching an operating mechanism, which can latch a circuit breaker. This spring adjusting means 131 has a first relation between the moved amount of the spring adjusting means 131 and change in the energizing force of a first part of a moving range of the adjusting means 131 and a second relation between the moved amount of the spring adjusting means 131 and change in the energizing force of a second part for the moving range of the spring adjusting means 131. Operation can be made with a high degree of reliability obtained thereby, even in the case of a low level magnetic tripping current. COPYRIGHT: (C)1991,JPO | ||||||
| 151 | Magnetic tripping device | JP29725989 | 1989-11-15 | JPH02189837A | 1990-07-25 | PIEERU BATOU |
| PURPOSE: To easily set a desired tripping threshold value in all range by aligning a sliding rod, to which two plunger cores are fixed, to a fixed cavity. CONSTITUTION: When a current flows in a coil 2, a magnetic flux 15 passing through a cavity 9 between poles 7, 8, a magnetic flux 16 passing through the pole 7 and a plunger core 6 and a magnetic flux 18 passing through the pole 8 and a plunger core 5 are generated. The attracting force of the magnetic fluxes 16, 18 moves a sliding rod 3 upward against a return spring 4 and a tripping lever to operate. In such a structure, a pull-off threshold value is set by adjusting an interval between the termination 12 of the rod 3 and the lever 13 with a setting nut 14. The joining operation of the plunger cores is used to control an almost linear tripping threshold value in a sufficiently wide range of setting. COPYRIGHT: (C)1990,JPO | ||||||
| 152 | Electromagnetic tripping device | JP1935189 | 1989-01-27 | JPH01225025A | 1989-09-07 | ANDORE RASO; PIEERU RAFUON; DOUNI BIAARU |
| PURPOSE: To accurately adjust a tripping threshold over a long range by providing an annular groove in a movable iron core over a longitudinal distance slightly longer than the axial distance between the maximum and minimum separated positions from a stationary iron core. CONSTITUTION: A groove 56, provided in a movable iron core 20 over a longitudinal distance slightly longer than the axial distance between the maximum and minimum separated positions from a stationary iron core 18, forms a second cavity in a magnetic circuit excited by a coil 16. The second cavity produces a force to magnetically attract the movable iron core 20. When the movable iron core 20 is at the minimum separated position from the stationary iron core 18, the holding force of the movable iron core 20 is added to the magnetic attracting force of the stationary iron core, on the contrary, when the movable iron core 20 is at the maximum separated position from the stationary iron core 18, the holding force of the movable iron core 20 is subtracted from the attracting force of the stationary iron core 18. Therefore, an adjustable range can be broadened because of the special shapes of the iron cores, and the accuracy of adjusting a tripping threshold can be enhanced by keeping the same distance traveled by the movable iron core 20. COPYRIGHT: (C)1989,JPO | ||||||
| 153 | Electromagnetic tripping device for circuit breaker | JP13352188 | 1988-05-31 | JPS6477815A | 1989-03-23 | HIRAKI SHUNKAI; MASUDA SHIGERU |
| PURPOSE:To prevent mistripping due to rush current by energizing a plunger, which is driven by the coil current toward the yoke, in the opposite direction to plunger driving with a pressure spring, and by pressing in the plunger driving direction by a spring through a lever which is to drive a contact opening mechanism. CONSTITUTION:When the force of a pressure spring 9 is set greater than the force of a spring 11 of a stopper 13, a plunger 8 heaves one end 10a of a lever 10. When a current over a set value flows through a coil 2, an attraction force is applied to drive the plunger 8 downward. If at this time the current flowing through the coil 2 increases, the attraction force increases also, and the speed at which the plunger 8 is driven downward becomes greater. However great the plunger 8 attracting speed becomes, the revolving speed of the lever 10 round a shaft 12 remains a speed determined by the inertia moment of the lever 10 and the pressing force of the spring 11. When the lever 10 rotational angle exceeds a certain value, one end 10b actuates the contact opening mechanism of the circuit breaker. | ||||||
| 154 | JPS639336B2 - | JP8562981 | 1981-06-05 | JPS639336B2 | 1988-02-27 | UCHIDA NAOJI; KAMIDACHI TAKEYUKI |
| 155 | Circuit breaker | JP20358886 | 1986-08-28 | JPS6252826A | 1987-03-07 | ARAN BAAKU SHINPU |
| 156 | Electromagnetic device | JP6032380 | 1980-05-06 | JPS56157008A | 1981-12-04 | OONUMA SHIYOUEI |
| PURPOSE:To accurately perform the adjusting work on the gap located between a stroke and ratehes in a short time by a method wherein a constitution is provided in such manner that a stopper material is not contacted to the nut of the plunger to be fixed to a movable core using a nut. CONSTITUTION:The nut 5a of the plunger 5 to be pressed by stopper bolts 14's having the movable core 4 as their stopper member and to be fixed on the movable core 4 with a nut, is released from the stopper member. the gap (g) located between ratches can be adjusted by loosening the nut 5a and rotating the plunger 5 whthout giving an effect on the storke S. Also the stroke S can be adjusted independently from the gap (g) located between ratches by loosening 14a's and by rotating stopper bolts 14's. | ||||||
| 157 | JPS552693B2 - | JP14834075 | 1975-12-11 | JPS552693B2 | 1980-01-22 | |
| 158 | Electromagnetic overcurrent tripping device | JP4151079 | 1979-04-05 | JPS54136676A | 1979-10-23 | MANFUREETO KURIYUUGAA; UORUGANGU NAUROOTO; BERUNHARUTO PUROISU |
| 159 | JPS541023Y2 - | JP3519974 | 1974-03-29 | JPS541023Y2 | 1979-01-18 | |
| 160 | Device for tripping leakage breaker | JP16096777 | 1977-12-27 | JPS5385379A | 1978-07-27 | MARUCHIN SHIYUTATSUFUEN |
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