| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Switch device | US10652784 | 2003-08-29 | US20040045801A1 | 2004-03-11 | Keiichi Shimizu; Yasuhide Tanaka |
| A switch device for rotating and stopping a DC motor includes a first switch element having two moving contacts, two normally open NO contacts and two normally closed NC contacts, a second switch element having one or two normally closed NC contacts, and an operating element. The operating element serves to connect the two moving contacts individually to input terminals of the DC motor, the two NO contacts to a voltage source line at a higher voltage, and each of the two NC contacts of the first switch element to another voltage source line at a lower voltage such as the ground potential, each through the NC contact, or one of the two NC contacts, of the second switch element. The NC contact of the second switch element is maintained in an open condition during a period from when either one of the NO contacts begins to change from a closed condition to an open condition until the corresponding NC contact of the first switch element finishes changing from an open condition to a closed condition. | ||||||
| 162 | Method and apparatus for interrupting current through deionization of arc plasma | US09676547 | 2000-09-29 | US06667863B1 | 2003-12-23 | Edward A. Mallonen; David J. Benard; Paul T. Nolden; Mark Clayton |
| A technique is provided for enhancing performance of a circuit interrupter by deionizing arc plasma developed during an interruption event. A source material is disposed in a secondary current carrying path parallel to a primary current carrying path through the device. Upon movement of a movable contact in the primary current carrying path, current begins to flow through the source material, causing surface ablation of a material which deionizes arc plasma, resulting in greater voltage investment in the arc and more rapid extinction. | ||||||
| 163 | Magnet switch for starter | US10403022 | 2003-04-01 | US20030189472A1 | 2003-10-09 | Tsutomu Shiga; Masami Niimi |
| In a magnet switch for a starter, a first contact portion and a second contact portion are connected in parallel between a battery and a motor. The first contact portion makes contact through a resistive component so that the motor starts rotation at low speed. By this, a pinion is pushed in an axial direction by an axial component of splines and brought into mesh with a ring gear in a condition that its rotation is restricted. Thereafter, the second contact portion makes contact in accordance with further movement of a plunger so that electric power is fully supplied to the motor through the second contact portion, thereby starting engine. A fixed contact of the first contact portion is made of a carbon material. The resistive component is provided by the carbon material. | ||||||
| 164 | Arc discharge suppressive connector | US10059391 | 2002-01-31 | US20020106921A1 | 2002-08-08 | Hiroki Hirai; Kouji Ota; Yoshitsugu Tsuji; Hiroto Ueno; Shigeki Sakai; Kenji Inoue; Takeshi Tsuji; Yoshiyuki Miyazaki |
| Disclosed is a connector having a terminal which is rendered into an electrically connectable state with a counterpart terminal by engaging with the counterpart terminal; a housing for accommodating the terminal therein; and an arc suppressive member which is provided at such a position as to be electrically connectable to the terminal and rendered into contact with the counterpart terminal when the terminal is being disengaged from the counterpart terminal so as to keep on electrically connecting the terminal and the counterpart terminal. The arc suppressive member has such a construction that an amount of discharged arc when the arc suppressive member is detached from the counterpart terminal is smaller than an amount of discharged arc when the terminal is disengaged from the counterpart terminal. With this arrangement, arc discharge at the disengagement of the terminals is suppressed. | ||||||
| 165 | CURRENT LIMITING CIRCUIT BREAKER | US09745019 | 2000-12-20 | US20020092829A1 | 2002-07-18 | William Weizhong Chen; Frank Ehrenberger; Aaron Bottorff; Matt Sortland |
| The present invention provides a current limiting circuit breaker having a current responsive device for opening a pair of contacts or switch upon short circuit conditions. The current responsive device utilizes an insulating object driven by a magnetic force caused by a short circuit current. Upon opening of the contacts with the use of the insulating object, let-through current flows through a secondary contact, positioned on the insulating object, to a positive temperature coefficient resistivity element which limits the current and arcing in the contacts. The PTC elements could be pure metallic materials such as pure tungsten, pure iron, etc. Conductive polymer and ceramic PTC materials could also be used for some specific applications. The present invention also provides a method of electrically connecting a drive plate and a line terminal on the current limiting circuit breaker. | ||||||
| 166 | Switch contact configuration | US09606992 | 2000-06-29 | US06388215B1 | 2002-05-14 | James G. Sepelak; Michael J. Holland |
| A switch which permits the use of high contact spring force without the correspondingly high mechanism actuator force typically needed with a switch which utilizes a high contact spring force. | ||||||
| 167 | Bi-stable battery switch | US09559679 | 2000-04-27 | US06310529B1 | 2001-10-30 | Edwin J. Luetzow; Richard L. Luetzow |
| The present invention is for a bi-stable battery switch incorporated preferably for internal use into a remotely switchable storage battery, or, in the alternative, for external use with a battery. A bifurcated contact assembly incorporating dual bus bars is pulse actuated by a solenoid and cam arrangement to engage or disengage across opposing contacts. When engaging the contacts and when associated with high inductive loads, the first bus bar to advance initiates contact and assumes the arcing load, while the second bus bar to advance assumes the current load. When breaking contact and when associated with high inductive loads, the first bus bar to retreat breaks the current load and the second bus bar to retreat breaks the arcing load. Thus, the loads are shared to increase the durability and length of service of the switch. | ||||||
| 168 | Contact unit for electromagnetic relays | US09461386 | 1999-12-15 | US06300854B1 | 2001-10-09 | Johannes Oberndorfer |
| For increasing the reliability of contact closure in safety relays, a contact spring (10) is provided with two contact pieces (15, 16) which are disposed at the free end of the contact spring (10), spaced transversely of the longitudinal axis thereof and cooperate with contact pieces (17, 18) disposed on a common fixed contact. The contact spring (10) has a zone (19) in which it is not only flexible but also sufficiently torsional about its longitudinal axis in order to ensure the closure of both contact couples. Disposing the free end of the contact spring (10) carrying the contact pieces (15, 16) at an angle with respect to the fixed contact (12) achieves smooth and low-bounce contact closure and at the same time provides the function of a pre-contact and a main contact. | ||||||
| 169 | Breaker apparatus | US09739015 | 2000-12-19 | US20010002118A1 | 2001-05-31 | Kazumoto Konda; Junji Muta; Tatsuya Sumida; Yoshito Oka; Ichiaki Sano |
| The breaker apparatus is disclosed which comprises a projecting wall standing upright from the base of a breaker body; a pair of plate-shaped fixed electrodes laid on the front and back surfaces of the projecting wall; a recessed plug to be fitted on the projecting wall; a U-shaped movable electrode to be stored in the plug for bringing the both fixed electrodes into conduction by clamping the projecting wall on the front and back surfaces thereof; a fuse storage section for storing a fuse connected to one of the fixed electrodes in the surrounding wall standing upright from the base in parallel with the projecting wall; a cover for covering the opening of the fuse storage section and being fittable to the surrounding wall; an engaging surface formed on the plug and facing in the fitting direction of the plug; and a cover motion stopper provided on the cover for engaging with the engaging surface of the plug with the plug fitted to the projecting wall. | ||||||
| 170 | Relay circuit for high-voltage operation of a bi-directional DC motor | US807309 | 1997-02-27 | US6153990A | 2000-11-28 | Paul Gregory Feil; Thomas Henry Vaughn |
| A relay circuit is provided for operating a bi-directional dc motor including an H-bridge relay circuit having a first and a second relay. The first relay is capable of operatively engaging a first contact at a first time period to provide a first connection of the motor to a power source to operate the motor in a first mode. The second relay is capable of operatively engaging a second contact at a second time period to provide a second connection of the motor to the power source to operate the motor in a second mode. The relay circuit further includes a switch having at least one contact operatively engaging the first or second relay for effectuating the first or second connection, respectively. A third relay is operatively associated with the switch to provide a third connection of the motor to the power source as the at least one contact operatively engages the first or second relay. The third connection is disconnected prior to disconnection of the first or second connection as the at least one contact disengages the first or second relay. | ||||||
| 171 | Contact structure of a sliding switch | US872928 | 1997-06-11 | US5898142A | 1999-04-27 | Kazue Ohtaki; Mineo Hirano |
| In order to prevent resin around fixed contacts from being carbonized by an arc produced when a movable contact plate is brought into contact with the fixed contacts and separated therefrom, a sliding switch comprises a terminal plate provided with two fixed contact plates and a movable plate provided with a movable contact plate, which is brought into contact with the fixed contact plates. Each of the fixed contact plates has a fixed contact protruding from the terminal plate. The movable contact plate includes at least a pair of protrusions on both sides thereof. | ||||||
| 172 | Arrangement of resistors for switching of capacitive loads in an electromagnetic switching device | US658328 | 1996-06-05 | US5689143A | 1997-11-18 | Rudolf Nikles |
| The arrangement of resistors is intended for the switching of capacitive loads in an eletromagnetic switching device with main contacts (3) and auxiliary contacts (4). One of the terminals (7) of the auxiliary contacts (4) and one of the terminals (6) of the main contacts of the same phase are located above each other on the same side of the switching device. The auxiliary contacts (4) close before the main contacts (3) and open after same. A rigid resistor (8) is connected between the terminals (6) and (7) of each phase. The rigid resistor (8) facilitates upgrading of existing electromagnetic switching devices (1) with resistors (8) that are required for switching of capacitive loads. | ||||||
| 173 | Slide switch | US690998 | 1996-08-01 | US5672854A | 1997-09-30 | Minoru Nishio |
| A slide switch opening and closing a circuit for supplies electricity to a load by making and breaking contact between a movable contact and a stationary contact. The stationary contact is integrally formed with an arc generating portion for generating an arc when the circuit is opened or closed. The arc generating portion protrudes in the direction of movement of the movable contact and has a width which gradually decreases from its base portion towards its tip portion. The slide switch is capable of preventing the arc generating portion and the movable contact from having a groove due to wear. | ||||||
| 174 | Contact spring arrangement for a relay for conducting and switching high currents | US335741 | 1995-05-09 | US5583471A | 1996-12-10 | Josef Weiser; Robert Esterl; Gerhard Furtwangler; Horst Tamm |
| The contact spring arrangement has an elongated contact spring having a rigid connecting leg which extends approximately parallel to the contact spring and conducts the switching current in a direction opposite to the contact spring. On the side opposite the connecting leg the contact spring has a contact piece which co-operates with an opposite counter-contact element having a contact piece. The repulsive forces between the connecting leg and the contact spring become so long that even in the case of the highest short circuit currents no welding of the contacts results when in the case of contact pieces made from silver or a silver alloy the length of the gap formed between the contact spring and connecting leg is at least 20 times larger than the average spring spacing in the gap. | ||||||
| 175 | Electrical switch having arc-protected contacts | US784695 | 1985-10-03 | US4616112A | 1986-10-07 | Michael D. Galloway; William H. Rose; David T. Shaffer |
| An electrical switch comprises a dielectric base member having parallel stationary contact assemblies provided with aligned contact segments, each of the contact segments including an exposed contact section and a dielectric section. A spring-biased movable contact assembly is disposed between the stationary contact assemblies and includes cantilevered arcuate contact sections springably engaging respective aligned contact segments. The exposed contact sections have parallel projections and the dielectric sections have a projection along which the arcuate contact sections move, one of the parallel projections being longer so that, when the arcuate contact sections move from the contact sections onto the dielectric sections or vice versa, the arcuate contact sections engage the longer projection last or first so that an electric arc, if it occurs, will occur therebetween rather than between the short projections and the arcuate contact sections. | ||||||
| 176 | Two or more than two poles switch means having unequal contact gaps and turn off capacities | US667065 | 1984-11-01 | US4584621A | 1986-04-22 | Tai-Her Yang |
| A contact point structure for two pole or more than two pole switches and relays. Each pair of contact points has a different turn-off capacity and a different contact gap so that opening and closing the multi-pole switch will sequentially open or close the pairs of contact points thereby limiting arcing to only one pair of contact points. | ||||||
| 177 | Electric switch | US618477 | 1984-06-08 | US4544811A | 1985-10-01 | Arnold A. Brevick |
| An electric switch having a tactile feel and capable of carrying high current without requiring the use of relays, the switch being resistant to arcing damage by effecting sequential making and breaking at different contact points. | ||||||
| 178 | Electrically operated, mechanically held electrical switching device | US410804 | 1982-08-23 | US4430579A | 1984-02-07 | Dominik M. Wiktor |
| An electrical switching device having an actuator reciprocable between two extreme positions, the switch being open and closed, respectively, when the actuator is in its two extreme positions. An electrical operator, such as a solenoid having a movable armature, responds to successive momentary energizations by moving the actuator first to one extreme position and then the other. The actuator is mechanically held in each extreme position by a spring-biased element which also serves to transmit movement of the actuator to the switch contacts. The actuator may have a cam surface shaped to cause opening and closing of the switch contacts, the cam surface also cooperating with the spring-biased element for urging the actuator toward each of its extreme positions. The switching device may be used for interrupting electric power to a customer of a utility by being located between a watt-hour meter and the customer's load, or in other similar applications. | ||||||
| 179 | Circuit breaker contact structure | US806969 | 1977-06-16 | US4162467A | 1979-07-24 | Albert R. Cellerini; Louis N. Ricci; James O. Rexroad |
| A circuit interrupter with improved current withstand capability characterized by stationary and movable contact means, the stationary contact means comprising first and second conductors being substantially parallel and having an air gap therebetween, the first conductor being pivotally mounted on the second conductor and being in the zone of pivotal movement of the first conductor so that when a fault current of predetermined conditions occurs a magnetic flux between the first and second conductors urges the first conductor toward the movable contact means. | ||||||
| 180 | Electromagnetic switch device | US27188872 | 1972-07-14 | US3805200A | 1974-04-16 | SUZUKI M |
| An improved electromagnetic switch device capable of remarkably reducing the arcs which would be produced at the time of opening and closing of the switch. The switch is provided with an arccutting contact in either one of the movable and fixed main contacts, the arc-cutting contact being retractively protruded outwardly beyond the contacting surface of the main contact in which it is provided, so that the arc-cutting contact comes into contact with the opposing main contact prior to the engagement of the main contacts, through which the switch is brought into onoperation, while the arc-cutting contact comes out of contact with the opposing main contact after disengagement of the main contacts by which the switch is brought into off-operation.
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