FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD. Patent applications |
Patent application number | Title | Published |
20160082851 | CHARGING SYSTEM AND CHARGING METHOD - A charging system includes at least one facility connected to a feeder of a contract power source; and a charger connected to the feeder, wherein charging power is output to charge an electrical storage device, such as a battery, by an operation of a power converter in the charger. The charger stores power consumption values of facilities and a rated power value for a power that the charger can output within the range of contract power. A charging power computing section computes charging power by subtracting the total value of the power consumption values of facilities in operation from the rated power value. A power converter charges a battery based on the computed charging power. | 03-24-2016 |
20150309106 | INSULATION MONITORING DEVICE - An insulation monitoring device that carries out insulation monitoring of a power system or load apparatus using, for example, an Igr method includes a table in which a monitoring setting value Irref greater than a resistance component error current flowing in accordance with the sum of the electrical capacitance of a capacitor configuring a noise filter on the input side of the load apparatus and the ground insulation capacitance of the power system is set in advance in accordance with an operating schedule of the load apparatus, a monitoring setting value computing unit that outputs the monitoring setting value I | 10-29-2015 |
20140320112 | CURRENT DETECTING DEVICE - A current detecting device includes an exciting coil ( | 10-30-2014 |
20140266522 | CONTACT MECHANISM AND ELECTROMAGNETIC CONTACTOR USING SAME - A contact mechanism is capable of, without enlarging the entire configuration thereof, preventing the generation of an electromagnetic repulsion that opens a movable contact upon application of a current, and also provides an electromagnetic contactor that uses this contact mechanism. A contact mechanism has a fixed contact and a movable contact that are inserted in a current-carrying path. In the contact mechanism, the fixed contact or the movable contact is formed into an L-shape or a U-shape so as to generate a Lorentz force that acts against an electromagnetic repulsion in an opening direction, which is generated between the fixed contact and the movable contact upon application of a current. | 09-18-2014 |
20140104019 | ELECTROMAGNETIC CONTACTOR AND ELECTROMAGNETIC CONTACTOR GAS ENCAPSULATING METHOD - An electromagnetic contactor includes a base plate having an aperture hole; an arc extinguishing chamber formed by a fixed terminal support insulating substrate and a cylinder portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a flange portion. A cap connection portion is formed by the cap and a second connection member having a tube portion and a flange portion. The flange portion of the first connection member is attached to one surface of the base plate, and the flange portion of the second connection member is attached to the other surface of the base plate, so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate. | 04-17-2014 |
20140104018 | ELECTROMAGNETIC CONTACTOR AND ELECTROMAGNETIC CONTACTOR GAS ENCAPSULATING METHOD - An electromagnetic contactor has a base plate having an aperture hole; an arc extinguishing chamber including a fixed terminal having a vent portion and a pipe obliquely inserted from outside a wall surface and connecting the vent portion; and a bottomed tubular cap in which one end thereof is open. An arc extinguishing chamber connection portion is formed by the arc extinguishing chamber and a first connection member having a tube portion connected to the arc extinguishing chamber and a flange portion contacting with the base plate. A cap connection portion is formed by the cap and a second connection member having a tube portion connected to the cap and a flange portion connected to the base plate. The arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole of the base plate. | 04-17-2014 |
20140101937 | ELECTROMAGNETIC CONTACTOR MANUFACTURING METHOD - An electromagnetic contactor manufacturing method includes a step of forming an arc extinguishing chamber connection portion by simultaneously brazing a fixed terminal and a pipe penetrating and fixed to a tub-shaped arc extinguishing chamber, and a tube portion of a first connection member in communication with an open end portion of the arc extinguishing chamber; a step of forming a cap connection portion having a flange portion extending outward in a radial direction from an open end of a bottomed tubular cap; and a step of disposing a flange portion of the first connection member and a flange portion of a second connection member in close contact with a base plate in which an aperture hole is formed, and welding each of the flange portions to the base plate so that the arc extinguishing chamber connection portion and the cap connection portion are in communication through the aperture hole. | 04-17-2014 |
20140092515 | ELECTROMAGNETIC COIL DRIVE DEVICE - An electromagnetic coil drive device has a semiconductor switch connected in series with an electromagnetic coil for controlling a current supplied to the coil; a capacitor; a comparator for comparing a voltage to charge and discharge the capacitor with two different voltages, for generating a signal to operate on-off of the semiconductor switch in accordance with a result of a comparison; a first charging circuit to charge the capacitor based on a voltage applied to the coil; and a discharging circuit to discharge the capacitor. The first charging circuit has a first resistor and at least one compensating circuit connected in parallel with the first resistor; and a resistor and a Zener diode are connected in series in the compensating circuit. | 04-03-2014 |
20140062627 | ELECTROMAGNETIC CONTACTOR - An electromagnetic contactor has a contact device including a pair of fixed contacts disposed maintaining a predetermined distance and a movable contact disposed to be capable of contacting to and separating from the pair of fixed contacts. The pair of fixed contacts each includes a support conductor portion supported by an upper plate of a contact housing case, and a contact conductor portion connected to an end portion of the support conductor portion. The contact conductor portion includes a contact plate portion formed with a contact portion, and a connecting plate portion formed on an outer end portion of the contact plate portion and extending to the upper plate side. The movable contact is mounted onto a connecting shaft connected to a drive portion through a contact spring on an end portion on the upper plate side, and disposed to face the contact portion of the pair of fixed contacts. | 03-06-2014 |
20140062625 | ELECTROMAGNETIC CONTACTOR - An electromagnetic contactor has a pair of fixed contacts disposed maintaining a predetermined interval and a movable contact disposed to be capable of connecting to and separating from the pair of fixed contacts; and an electromagnet unit that drives the movable contact. The electromagnet unit includes a magnetic yoke enclosing a plunger drive portion; a movable plunger in which a leading end is protruding through an aperture formed in the magnetic yoke, and urged by a return spring; and an annular permanent magnet enclosing a peripheral flange portion formed on a protruding end side of the movable plunger, and magnetized in a moving direction of the movable plunger. | 03-06-2014 |
20140014622 | ELECTROMAGNETIC CONTACTOR - An electromagnetic contactor includes a contact device having a contact housing case formed from an insulating material and housing a pair of fixed contacts and a movable contact disposed to be capable of contacting to and separating from the pair of fixed contacts. On an inner peripheral surface of the contact housing case along the movable contact, arc extinguishing permanent magnets magnetized so that magnetic pole faces facing each other have same polarity are disposed to be near the movable contact. | 01-16-2014 |
20140013583 | METHOD FOR ASSEMBLING ARC-EXTINGUISHING CHAMBER OF ELECTROMAGNETIC CONTACTOR - A method for assembling an arc-extinguishing chamber of an electromagnetic contactor includes a step of fixing a pair of fixed contacts each including a support conductor and a C-shaped part, to a bottom plate part of the arc-extinguishing chamber having a tub-shape with one end being open, the C-shaped part defining inside of the arc-extinguishing chamber; a step of installing an insulation cover covering a part other than a contact point part of each C-shaped part of the pair of fixed contacts; and a step of disposing a movable contact to be capable of contacting to and separating from the contact point parts of the fixed contacts. | 01-16-2014 |
20130335175 | CONTACT MECHANISM AND ELECTROMAGNETIC CONTACTOR USING THE SAME - A contact mechanism where a shape of at least one of a fixed contactor including a pair of fixed contact portions and a movable contactor including a pair of movable contact portions capable of contacting with and separating from the pair of fixed contact portions is set to a shape that generates a Lorentz force resisting electromagnetic repulsion in a contactor opening direction generated between the fixed contact portions and the movable contact portions when a current is applied, has the fixed contactor and the movable contactor being inserted in a current path. Magnetic bodies are disposed on at least one of the fixed contactor and the movable contactor for suppressing a force driving arcs, which are generated between the pair of fixed contact portions and the pair of movable contact portions, to the fixed contactor on the opposite side. | 12-19-2013 |
20130328647 | ELECTROMAGNETIC CONTACTOR - An electromagnetic contactor has a pair of fixed contacts; a movable contact disposed to be capable of contacting with and separating from the pair of fixed contacts; and an electromagnetic unit driving the movable contact. The electromagnetic unit has a magnetic yoke having an open upper part; an upper magnetic yoke cross-linked in the open upper part of the magnetic yoke; a spool having a central opening in which an exciting coil is wound around the spool; a movable plunger movably disposed in the central opening of the spool in an axial direction and having a tip end protruding, the movable plunger urged by a return spring; and an auxiliary yoke forming a magnetic path between the movable plunger and the U-shaped magnetic yoke when the movable plunger is in an open position. The movable plunger is coupled to the movable contact through a coupling shaft. | 12-12-2013 |
20130301962 | BEARING MECHANISM FOR COMPACT ROTARY MEMBER - A bearing mechanism has a rotary member made of a resin, having a cylindrical bearing integrally formed thereof and protruding from a side surface of the rotary member; a base member made of a resin and rotatably supporting the rotary member, the base member having a support shaft protruding from a position facing the cylindrical bearing of the rotary member; and an urging member constantly urging the rotary member in a predetermined direction. The cylindrical bearing of the rotary member has a bearing hole to fit and insert the support shaft of the base member. | 11-14-2013 |
20130301181 | ELECTROMAGNETIC CONTACTOR - An electromagnetic contactor has a pair of fixed contacts disposed and fixed maintaining a predetermined interval; a movable contact disposed to be capable of contacting to and separating from the pair of fixed contacts; an electromagnet unit to drive the movable contact; and a drive circuit driving the electromagnet unit. The electromagnet unit includes at least a movable plunger urged by a return spring, a coil to move the movable plunger, and a ring-form permanent magnet magnetized in a moving direction of the movable plunger. The drive circuit includes a power source to supply power to the coil; a pulse drive circuit to output and supply to the coil an engage pulse causing the movable plunger to perform an attracting operation and a hold pulse maintaining the attracting operation when the movable plunger is subject to the attracting operation, and a flywheel circuit having a semiconductor switching element. | 11-14-2013 |
20130284702 | CIRCUIT BREAKER - A circuit breaker includes a fixed contact having a fixed contact point; a movable contact having a movable contact point contacting with the fixed contact point; and an arc extinguishing device housed in a main body case. In the arc extinguishing device, a plurality of magnetic grids, each having a pair of grid leg portions, is disposed in layer form, and an arc generated between the fixed contact point and the movable contact point at a time of an opening operation is drawn into the magnetic grids and extinguished. A magnetic flux is generated between the pairs of grid leg portions configuring the arc extinguishing device in a direction perpendicular to the arc generated between the fixed contact point and the movable contact point, and permanent magnets and a permanent magnet holding member are disposed therein. | 10-31-2013 |
20130229248 | ELECTROMAGNETIC CONTACTOR - An electromagnetic contactor has an arc extinguishing chamber housing a contact mechanism having a pair of fixed contacts and a movable contact that contacts with the pair of fixed contacts. The arc extinguishing chamber has a plate-shaped fixed contact support insulating substrate including through holes to fix at least the pair of fixed contacts and formed with a metal foil on an outer peripheral circumferential edge of one surface by a metalizing process. The pair of fixed contacts and a metal cylindrical body are brazed and joined to the metal foils of the fixed contact support insulating substrate, and an insulating cylindrical body is disposed on an inner peripheral surface of the metal cylindrical body. | 09-05-2013 |
20130127571 | CONTACT DEVICE AND ELECTROMAGNETIC SWITCH USING CONTACT DEVICE - A contact device includes a pair of fixed contactors fixed to one side of an insulation container with a predetermined space therebetween and having a columnar shape with a tip end contact surface protruding at lease inside the insulation container, and a movable contactor disposed to be capable of contacting with and separating from the pair of fixed contactors. Surfaces of the pair of fixed contactors facing the movable contactor are formed of annular peripheral walls having a concave part at a center thereof. An annular arc is formed between the annular peripheral wall and the movable contactor when the contact device is in an open state. | 05-23-2013 |
20130127570 | ELECTROMAGNETIC CONTACTOR - Provided is an electromagnetic contactor ( | 05-23-2013 |
20130113580 | CONTACT MECHANISM AND ELECTROMAGNETIC CONTACTOR USING SAME - The present invention provides a contact mechanism that is capable of, without enlarging the entire configuration thereof, preventing the generation of an electromagnetic repulsion that opens a movable contact upon application of a current, and also provides an electromagnetic contactor that uses this contact mechanism. A contact mechanism (CM) has a fixed contact ( | 05-09-2013 |
20130002381 | REVERSIBLE ELECTROMAGNETIC CONTACTOR - A reversible unit ( | 01-03-2013 |
20120326815 | ELECTROMAGNETIC SWITCH - An electromagnetic switch has a contact device having a pair of fixed contacts fixed thereof and maintaining a predetermined interval inside an arc-extinguishing chamber receptacle, and a movable contact disposed to be connectable with the pair of fixed contacts; and an electromagnetic device driving the movable contact. The electromagnetic device has a cylindrical exciting coil, a fixed core passing through center of the exciting coil, a magnetic yoke covering an outer side of the exciting coil, and a movable core facing the fixed core and the magnetic yoke, and armature surfaces of the fixed core and the magnetic yoke are formed on a side of the contact device than the exciting coil. | 12-27-2012 |
20120280771 | REVERSIBLE ELECTROMAGNETIC CONTACTOR - A reversible unit ( | 11-08-2012 |
20120268224 | MOUNTING UNIT FOR ELECTROMAGNETIC CONTACTOR AND CONNECTION STRUCTURE OF ELCTROMAGNETIC CONTACTOR USING THE SAME - A mounting unit for an electromagnetic contactor can prevent erroneous mounting of a non-mountable unit in a state in which a mountable unit is mounted on a case-side mounting portion, and a connection structure of an electromagnetic contactor uses the mounting unit. A mounting unit ( | 10-25-2012 |
20120249271 | ELECTROMAGNETIC CONTACTOR UNIT - There is provided an electromagnetic contactor unit capable of firmly connecting electromagnetic contactors without influencing outer dimensions when the electromagnetic contactors are connected to each other. The electromagnetic contactor unit connected at least two juxtaposed electromagnetic contactors ( | 10-04-2012 |
20120175344 | MAGNETIC CONTACTOR - A magnetic contactor has a stationary contact including a first and second stationary contact pieces, each having a stationary contact portion and a stationary terminal portion, a third stationary contact piece disposed between the first stationary contact piece and the second stationary contact piece and having two stationary contact portions; a contact support casing supporting the stationary contact with the stationary terminal portions protruding out of the contact support casing; and a movable contact installed in the contact support casing, and including a first and second movable contact pieces contactable and separable from the stationary contact portions of the stationary contact pieces and the stationary contact portions of the third stationary contact piece accordingly, and an insulator fixing the first movable contact piece and the second movable contact piece. A driving mechanism drives the movable contact to contact and separate from the stationary contact. | 07-12-2012 |
20120161918 | THERMAL OVERLOAD RELAY - A reset rod ( | 06-28-2012 |
20120161908 | Polarized Electromagnet - A polarized electromagnet that can suppress magnetic flux leakage in a position that does not affect the suction force between an interior yoke and an exterior yoke, and increase the suction force of a permanent magnet is provided. A polarized electromagnet includes a spool | 06-28-2012 |
20120152705 | CIRCUIT BREAKER - Provided is a circuit breaker capable of minimizing a change in the structure of, for example, a case even when a material (thermal conductivity) forming a stud is changed. | 06-21-2012 |
20120146750 | ELECTROMAGNETIC CONTACT DEVICE - An electromagnetic contact device has a terminal base ( | 06-14-2012 |
20120139673 | ELECTROMAGNETIC CONTACT DEVICE - Within a case ( | 06-07-2012 |
20120139672 | ELECTROMAGNETIC CONTACT DEVICE - An extinction cover ( | 06-07-2012 |
20120138759 | RAIL ATTACHMENT STRUCTURE OF ELECTRIC DEVICE - First fitting portions ( | 06-07-2012 |
20120133462 | ELECTROMAGNETIC CONTACTOR - The electromagnetic contactor enables a reliable return to a pole open position without increasing the spring force of a return spring. In an electromagnetic contactor, an electromagnetic device having an exciting coil and a contact mechanism having a return spring are disposed in parallel, and the electromagnetic device and contact mechanism are linked by a drive lever. The electromagnetic device has a polarized electromagnet having a magnetic circuit that includes a permanent magnet generating a suction force that moves the contact mechanism to a pole open position side when the exciting coil is not energized. The drive lever is fixed to either one of the electromagnetic device or contact mechanism and contacts with the other with no gap at least when the contact mechanism is moved to the pole open position side. The return force of the contact mechanism is covered by the suction force of the permanent magnet. | 05-31-2012 |
20120133461 | RIVERSIBLE ELECTROMAGNETIC CONTACTOR - An electromagnetic contactor ( | 05-31-2012 |
20120133460 | ELECTROMAGNETIC CONTACT DEVICE - Two electromagnetic contact devices | 05-31-2012 |
20120112858 | ELECTROMAGNETIC CONTACT DEVICE - A plurality of terminal chambers ( | 05-10-2012 |
20120056701 | ELECTROMAGNETIC CONTACT DEVICE - An electromagnetic contact device has a contactor holder ( | 03-08-2012 |
20100253467 | THERMAL OVERLOAD RELAY DEVICE - A thermal overload relay device has a mechanism that allows the interphase pitch between connection lines to be readily changeable without using a jig or the like in the work for electrically connecting the thermal overload relay to different types of electromagnetic contactors, thereby reducing the maintenance cost. The mechanism comprises a connection line-holding structure disposed in a casing and holding the connection lines, while permitting the distances between the connection lines to be readily changeable between among at least two different interphase pitches. | 10-07-2010 |
20100245021 | Thermal overload relay - A thermal overload relay has an actuator mechanism that generates an operating force by bending of a main bimetal with a heating wire wound thereon; a switching mechanism that is driven by the operating force from the actuator mechanism; a contact changeover mechanism wherein contacts are changed by the switching mechanism operation; and a casing that contains the actuator, the switching and the contact changeover mechanisms. The casing has main circuit terminals and auxiliary circuit terminals arranged on one side, the main circuit terminals electrically connecting the thermal overload relay to an electric load device, and the auxiliary circuit terminals electrically connecting the thermal overload relay to another electric device. When the casing is viewed in plan, the main circuit terminals are aligned and, the auxiliary circuit terminals are arranged in a position offset from the position of the alignment of the main circuit terminals. | 09-30-2010 |
20100245020 | Thermal overload relay - A thermal overload relay includes a main bimetal for detection of an overload current, a shifter associated with the main bimetal, a release lever working according to a displacement of the shifter, a contact reversing mechanism for changing-over contacts by reversing action caused by rotation of the release lever, and a manipulation structure for manipulating the release lever and the contact reversing mechanism. The manipulation structure includes a reset bar for returning the contact reversing mechanism to an initial state. The reset bar is arranged to change-over between a manual reset state in which the reset bar can be pushed-in and an automatic reset state in which the reset bar is pushed-in and turned from the manual reset state and held in that state. | 09-30-2010 |
20100245019 | Thermal overload relay - A thermal overload relay has a case, a main bimetal bending upon detection of an overload current, a release lever rotatably supported by an adjusting link and rotating according to a shifter displaced in response to the bending of the main bimetals, and a contact reversing mechanism for change-over contacts responsive to a rotation of the release lever. The main bimetal, release lever and contact reversing mechanism are disposed in the case. The contact reversing mechanism has a movable plate, and a reversing spring stretched between the other side of the movable plate and a spring support. The other end of the movable plate and the spring support is positioned opposite a support point. The release lever has a release lever supporting part, a reversing spring pushing part, a cam contact part, and a displacement input part, in which the release lever supporting part is pivoted on the adjusting link. | 09-30-2010 |
20100245018 | Thermal overload relay - A thermal overload relay includes main bimetals which bend upon detection of an overload current; a release lever displaced via movement of a shifter moved in response to the bending of the main bimetals; and a contact reversing mechanism for changing-over contacts responsive to a rotation of the release lever. The main bimetals, the release lever and the contact reversing mechanism are all disposed in a case. The contact reversing mechanism includes a pivotable movable plate; a reversing spring reversing the movable plate by coupling with a rotated release lever; and an interlock plate rotating around a support shaft together with the movable plate. Each contact has a normally opened contact piece and a normally closed contact piece and is disposed respectively in the vicinity of a front surface and in the vicinity of a back surface of the interlock plate. | 09-30-2010 |
20100245002 | Electromagnetic contractor - An electromagnetic contactor has a stationary core; a coil arranged around the stationary core; a movable holder movable toward the stationary core; a movable core coupled to one end of the movable holder for being attracted to the stationary core by the excitation of the coil; and a nonmagnetic structural component arranged on the movable core facing the stationary core. The nonmagnetic structural component is a flat plate structural component with high flexural rigidity, overlaid on the surface of the movable core to face the stationary core. The nonmagnetic structural component and the movable core are held between a cushioning spring and a coupling pin. The cushioning spring is contained in the movable holder and buts the back face of the movable core not facing the stationary core. The coupling pin crosses the nonmagnetic structural component with both ends engaged with a pair of holder legs. | 09-30-2010 |
20100243418 | PUSH BUTTON SWITCH - An operation portion and a switch portion of a push button switch are removably coupled. The switch portion includes a contact opening mechanism having a rotatably supported lever and a spring. The lever has one end acting on a part of the operation portion coupled with the switch portion, and the other end acting on a contact switching mechanism of the switching contact unit in the switch portion to open/close the contacts. The spring urges the lever in a fixed rotation direction. The contact switching mechanism is urged to move a movable contact from a standby state position toward an operating state position by the contact opening mechanism when the switch portion is separated from the operation portion. The contact switching mechanism is released from the urging when the switch portion is coupled with the operation portion. | 09-30-2010 |
20100113654 | FLAME-RESISTANT RESIN COMPOSITION - A flame-resistant resin composition is disclosed that uses a non-halogen flame retardant as the flame retardant, and allows resin processed articles to be obtained which have superior flame resistance and heat resistance. The flame-resistant resin composition comprises a non-halogen flame retardant (A) containing a metal phosphinate (a) represented by the following formula (I) | 05-06-2010 |
20100073117 | COIL UNIT OF ELECTROMAGNETIC CONTACTOR AND ASSEMBLING METHOD THEREOF - In a coil unit of an electromagnetic contactor in which a coil having a coil strand wound around a flanged bobbin is mounted on a leg of a stationary core of an operating electromagnet, into one flange of the bobbin are press fitted a pair of terminal metal pieces respectively corresponding to an initial side and final side lead wires of the coil, and each of the terminal metal pieces is formed with a press fitting base making the terminal metal piece press fitted into the one flange, a coil connecting arm around which the lead wire of corresponding side of the coil is wound and a tab terminal made to have a plug-in connection with a connector of an extension lead. | 03-25-2010 |
20090323302 | Thermal relay - A thermal relay includes an outer casing; an adjusting dial for adjusting a setting current value; and a cover for avoiding an erroneous operation. The cover is attached to the outer casing to cover the adjusting dial. A chamfer is provided on each of a peripheral surface of a back surface of the cover and a peripheral surface of a top surface of the adjusting dial. The chamfer on the peripheral surface of the back surface of the cover and the chamfer on the peripheral surface of the top surface of the adjusting dial are engaged with each other. | 12-31-2009 |
20090315653 | Electromagnet device and electromagnetic contactor - A core for an electromagnetic device includes a yoke and at least two legs extending from the yoke. The yoke and at least two legs are formed of steel plates laminated together. Each of the legs has a free end face forming a magnetic pole face, a first groove extending from the magnetic pole face and a second magnetic groove on a side face thereof. Also, the core includes a shading coil having a metal ring shape, and including a first linear section and a second linear section extending in parallel with each other. A part of the first linear section is accommodated in the first groove, and a part of the second linear section is accommodated in the second groove and locked therein. A bottom face of the second groove forms an angle with respect to a bottom face of the first groove. | 12-24-2009 |
20090283500 | ARC EXTINGUISHING RESIN PROCESSED ARTICLE AND CIRCUIT BREAKER USING THE SAME - An arc extinguishing resin processed article having excellent flame retardancy is disclosed, in which the contribution to rise in inner pressure is small, a pyrolysis gas that can efficiently extinguish an arc generated upon the interruption of a circuit can be generated, and heat resistance withstanding the rise in temperature generated in such a case and pressure resistance withstanding the rise in inner pressure are provided, and a circuit breaker using the arc extinguishing resin processed article are disclosed. The arc extinguishing resin processed article comprises a resin composition comprising (A) a polyolefin resin containing a hydroxyl group in an amount of from 0.2 to 0.7 mol per mol of a methylene group, a part of hydrogen atoms in a methylene chain being substituted with a hydroxyl group, (B) microcapsules containing water as a core material, and (C) a reactive organophosphorus flame retardant having a terminal unsaturated bond, the resin composition being molded and then subjected to radiation crosslinking. | 11-19-2009 |
20090243769 | MOVABLE CONTACT HOLDER OF ELECTRICAL APPARATUS AND ASSEMBLING METHOD OF THE MOVABLE CONTACT HOLDER - A movable contact holder includes a movable contact holder base and a movable contact holder cover. One side of the movable contact holder base is opened to have a plurality of recesses each being formed for holding a contact pair, each contact pair include a bridge contact assembly and a contact spring inserted therein while being isolated from the other pairs. The other side of the movable contact holder base is formed as a bottom wall, and preferably includes openings through which an assembly jig can be inserted from outside the moveable contact holder. Alternatively, jig openings can be formed in lateral side walls of the recesses to allow the assembly jig to be inserted. The movable contact holder cover covers the movable contact holder base and is coupled thereto. | 10-01-2009 |
20090206977 | Thermal overload relay - A thermal overload relay is provided with an external case, and an adjustment dial with a cam inserted into an adjustment dial insertion hole provided in the external case for adjusting a settling current. A press-fitting section is provided at one of the adjustment dial and the adjustment dial insertion hole, and a locking section is provided at the other of the adjustment dial and the adjustment dial insertion hole. The press-fitting section is press-fit and retained in the locking section. | 08-20-2009 |
20090200272 | ARC-EXTINGUISHING PROCESSED RESIN ARTICLE AND CIRCUIT BREAKER THAT USES SAME - An arc-extinguishing processed resin article is disclosed that exhibits an excellent arc-extinguishing behavior, heat resistance, pressure resistance, and molding processability, and a circuit breaker that uses this arc-extinguishing processed resin article are provided. The circuit breaker includes a stationary contactor that has a stationary contact point, a movable contactor that has a movable contact point contacting the stationary contactor and that carries out a switching operation with the stationary contactor, and an arc-extinguishing device that extinguishes the arc generated when the stationary contactor and movable contactor engage in a switching operation. The circuit breaker uses, as the arc-extinguishing device, an arc-extinguishing processed resin article obtained by molding a resin composition containing (A) polyolefin resin that has the hydroxyl group substituted for a portion of the hydrogen atoms in the methylene chain and that contains 0.2 to 0.7 mole hydroxyl group per mole methylene group, (B) a crosslinking agent that has a terminal unsaturated group, and (C) metal hydroxide whose surface has been treated with higher aliphatic acid, wherein the resin composition contains 5 to 60 mass parts of the metal hydroxide (C) per 100 mass parts of the polyolefin resin (A), and radiation-induced crosslinking is executed on the resin composition after the molding thereof. | 08-13-2009 |
20090128077 | THERMALLY ACTUATED OVERLOAD TRIPPING DEVICE - A circuit breaker with overload and short-circuit protection functions for a motor, on which is mounted a thermally actuated overload tripping device including an adjustment dial to set a value corresponding to a rated current value of the motor on a scale. The dial has a standard setting pointer mark and a correction setting pointer mark side-by-side along a perimeter. The standard setting pointer mark applies to using the circuit breaker as a single item. The correction setting pointer mark applies to using a number of circuit breakers arranged in a line in close contact with each other. By setting a mark selected according to the arrangement of the circuit breaker at the rated current value, the steady state current value of the tripping device can be adequately set to correspond to the rated current value of the motor. | 05-21-2009 |