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序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
21 Contact module for circuit breaker US15024334 2014-09-19 US09704675B2 2017-07-11 Yi Liu; Xiang Gu; Zhongbin Wang
A contact module for a circuit breaker is disclosed, comprising: a base, a cover, an operation mechanism, at least three kinds of asymmetrical single-pole switches and a release mechanism. The cover is mounted on the base to form a space, where the mechanisms and the switches are disposed. The operation mechanism is connected to one switch; the release mechanism to the at least three switches. Each switch comprises a strong side and a weak side. For each switch, there is a thick contact housing on the strong side connected to a thick shaft, and a thin one on the weak side connected to a thin shaft. A rotor component has a single contact spring mounted on the weak side. Rotation shafts are connected by a linkage shaft to connect the single-pole switches; a strong side of one switch is connected to a weak side of another switch.
22 Contact device, and electromagnetic switch in which the contact device is used US14505647 2014-10-03 US09653222B2 2017-05-16 Masaru Isozaki; Osamu Kashimura; Hiroyuki Tachikawa; Kouetsu Takaya; Yuji Shiba
A contact device includes a pair of fixed contacts fixedly disposed inside an arc extinguishing chamber and maintaining a predetermined interval from each other; a movable contact disposed inside the arc extinguishing chamber, and contacting to and separating from the pair of fixed contacts; a first arc root movement promotion portion formed on the pair of fixed contacts, and promoting a movement of a root of an arc in a direction away from the movable contact, the arc being generated when contacts are opened in which the movable contact moves away from the pair of fixed contacts; and a second arc root movement promotion portion formed on the movable contact, and promoting a movement of the root of the arc in a direction away from the relevant fixed contact.
23 Electromagnetic contactor US14676939 2015-04-02 US09589739B2 2017-03-07 Yasuhiro Naka; Kouetsu Takaya; Kenji Suzuki; Yuji Shiba
An electromagnetic contactor includes a fixed contact portion, a movable contact portion disposed facing the fixed contact portion to contact to and separate from the fixed contact portion, and an arc extinguishing receptacle forming an arc extinguishing chamber housing the fixed contact portion and movable contact portion. Among contact surfaces of the movable contact portion and fixed contact portion facing each other, at least an opposing distance between a contact end portion of the fixed contact portion and a contact end portion of the movable contact portion positioned in a moving direction of an arc generated when separating the movable contact portion from the fixed contact portion is set to increase with increasing proximity to end surfaces on contact end portion sides.
24 Driving rod for medium voltage switching element gear US14361715 2012-11-29 US09318278B2 2016-04-19 Arend Lammers; Gerard Schoonenberg
A device for medium or high voltage switching element gear, the device having: a switching element for connecting two conductors: and a driving rod for operating the switch, wherein the driving rod comprises at least a surface layer of an electrically high resistance material. The electrically high resistance material ensures that a small current will flow through the material due to the present electrical field. This small current will cause a heating of the driving rod, such that condensation is reduced or prevented.
25 Circuit breaker with fluid injection US14303177 2014-06-12 US09312085B2 2016-04-12 Francesco Pisu; Francia Galindo-Lozano; Javier Mantilla; Mathias-Dominic Buergler; Nicola Gariboldi; Oliver Cossalter; Patrick Stoller; Stephan Grob; Sami Kotilainen
A circuit breaker including an ejection device including an arc-extinction medium for improved extinction of an arc formed during a breaker operation and an exhaust-cooling medium for improved cooling of exhaust gases in the circuit breaker. Thereby, the arc-extinction liquid includes an organofluorine compound having a boiling point Tb at 1 bar higher than −60° C. and being selected from the group of: a fluoroether; a fluoroamine; a fluoroketone; and mixtures thereof.
26 ELECTROMAGNETIC CONTACTOR US14676939 2015-04-02 US20150206666A1 2015-07-23 Yasuhiro NAKA; Kouetsu TAKAYA; Kenji SUZUKI; Yuji SHIBA
An electromagnetic contactor includes a fixed contact portion, a movable contact portion disposed facing the fixed contact portion to contact to and separate from the fixed contact portion, and an arc extinguishing receptacle forming an arc extinguishing chamber housing the fixed contact portion and movable contact portion. Among contact surfaces of the movable contact portion and fixed contact portion facing each other, at least an opposing distance between a contact end portion of the fixed contact portion and a contact end portion of the movable contact portion positioned in a moving direction of an arc generated when separating the movable contact portion from the fixed contact portion is set to increase with increasing proximity to end surfaces on contact end portion sides.
27 ELECTRIC CURRENT SWITCHING APPARATUS US14567363 2014-12-11 US20150090696A1 2015-04-02 Harri MATTLAR; Mikko VÄLIVAINIO
An electric switch includes first and second stationary contacts, and a movable contact for making an electrical connection between the first and second stationary contacts. The movable contact is pivotally connected to the first stationary contact by a pivotal connection for allowing the movable contact to pivot with respect to the first stationary contact about a pivoting axis such that in an open position of the switch, the movable contact is disconnected from the second stationary contact, and in a closed position of the switch, the movable contact is in contact with the second stationary contact. The movable contact and the first stationary contact are arranged in a first angle with respect to each other in the open position of the switch, and in a second angle with respect to each other in the closed position of the switch, and the second angle is greater than the first angle.
28 Electromagnetic contactor, method for sealing gas in electromagnetic contactor, and method for manufacturing electromagnetic contactor JP2011112918 2011-05-19 JP2012134121A 2012-07-12 IMAMURA SEIJI; OKAMOTO KOICHI; OGAWA HIROSHI; YAMAMOTO YUICHI; TAKATANI YUKINOBU
PROBLEM TO BE SOLVED: To provide an electromagnetic contactor in which a process of sealing a gas is simplified and which is inexpensive and has stable quality; a method for sealing the gas in the electromagnetic contactor; and a method for manufacturing the electromagnetic contactor.SOLUTION: The electromagnetic contactor comprises: a base plate 7 having an opening hole; a bucket-like arc-extinguishing chamber 1 including fixed terminals 2 which penetrate a wall surface and are fixed and a pipe 3, and having its one end opened; and a bottomed cylindrical cap 8. An arc-extinguishing chamber connection part 6 is formed of the arc-extinguishing chamber 1 and a first connection member 4 having a cylindrical part 4a whose one end is tightly attached and connected to an open end face of the arc-extinguishing chamber, and a flange part 4b which is joined to the other end of the cylindrical part and can be tightly attached to the base plate. A cap connection part 12 is formed of the cap 8 and a second connection member 5 having a cylindrical part 5a whose one end is tightly attached and connected to an open end face of the cap, and a flange part 5b which is joined to the other end of the cylindrical part and can be tightly attached to the base plate. The arc-extinguishing chamber connection part 6 and the cap connection part 12 are attached so as to be communicated with each other through the opening hole of the base plate 7.
29 Contact device and electromagnetic switch using the same JP2010180242 2010-08-11 JP2012038684A 2012-02-23 TAKATANI YUKINOBU; SUZUKI KENJI; NAKA YASUHIRO
PROBLEM TO BE SOLVED: To provide a contact device capable of easily extinguishing an arc generated between a fixed contactor and a moving contactor when opening, and an electromagnetic switch using the same.SOLUTION: The contact device comprises a pair of columnar fixed contactors 6a and 6b fixed on one surface of an insulation container 4 at a predetermined interval, and projecting at least contact surfaces at tip ends into the insulation container; and a moving contactor 11 arranged so as to contact and separate to and from the pair of the fixed contactors 6a and 6b. The opposing surface of the pair of the fixed contactors 6a and 6b and the moving contactor 11 is constituted by an annular peripheral wall 9 having a recessed portion 9a at a center part. An annular arc is formed between the annular peripheral wall 9 and the moving contactor 11 when opening.
30 JPS5213626B2 - JP9134272 1972-09-13 JPS5213626B2 1977-04-15
31 CONTACT DEVICE AND ELECTROMAGNETIC SWITCH USING SAME EP13775189 2013-04-11 EP2838097A4 2016-01-27 ISOZAKI MASARU; KASHIMURA OSAMU; TACHIKAWA HIROYUKI; TAKAYA KOUETSU; SHIBA YUJI
There is provided a contact device, and an electromagnetic switch in which the contact device is used, such that an arc generated between a fixed contact and a movable contact when the contacts are opened can be easily extinguished. The contact device includes a pair of fixed contacts (111), (112) fixedly disposed maintaining a predetermined interval inside an arc extinguishing chamber (102) and a movable contact (130) disposed so as to be connectable to and detachable from the pair of fixed contacts inside the arc extinguishing chamber (102), wherein a first arc root movement promotion portion (118b), (118c) that promotes movement in a direction away from the movable contact of the root of an arc generated when the contacts are opened and the movable contact moves away is formed on each of the pair of fixed contacts, and a second arc root movement promotion portion (130b), (130c) that promotes movement in a direction away from the relevant fixed contact of the root of an arc generated when the contacts are opened and the movable contact moves away from the pair of fixed contacts is formed on the movable contact (130).
32 DRIVING ROD FOR MEDIUM VOLTAGE SWITCHING ELEMENT GEAR EP12794329.8 2012-11-29 EP2786392A1 2014-10-08 LAMMERS, Arend; SCHOONENBERG, Gerard
The invention relates to a device for medium or high voltage switching element gear, the device comprising: - a switching element for connecting two conductors; and - a driving rod for operating the switch; wherein the driving rod comprises at least a surface layer of an electrically high resistance material. The electrically high resistance material ensures that a small current will flow through the material due to the present electrical field. This small current will cause a heating of the driving rod, such that condensation is reduced or prevented.
33 Driving rod for medium voltage switching element gear EP11191416.4 2011-11-30 EP2600375A1 2013-06-05 Lammers, Arend; Schoonenberg, Gerard

The invention relates to a device for medium or high voltage switching element gear, the device comprising:

- a switching element for connecting two conductors; and

- a driving rod for operating the switch;

wherein the driving rod comprises at least a surface layer of an electrically high resistance material.

The electrically high resistance material ensures that a small current will flow through the material due to the present electrical field. This small current will cause a heating of the driving rod, such that condensation is reduced or prevented.

34 AIR CIRCUIT BREAKER US15616850 2017-06-07 US20180158629A1 2018-06-07 Woojin PARK
The present invention relates to an air circuit breaker, in which a recess is formed on one side or each of both sides of each contact plate provided in an insulating cage so as to reduce a contact area between a movable contactor and the contact plate when the movable contactor and the contact plate are brought into contact with each other, thereby preventing a contact portion between the movable contactor and the contact plate from being melted due to heat generation.
35 CONTACT MODULE FOR CIRCUIT BREAKER US15024334 2014-09-19 US20160233038A1 2016-08-11 Yi Liu; Xiang Gu; Zhongbin Wang
The present invention discloses a contact module for circuit breaker. The contact module comprises: a base, a cover, an operation mechanism, three kinds of single-pole switches and a release mechanism. The cover is mounted on the base to form an accommodation space, the operation mechanism, the three kinds of single-pole switches and the release mechanism are disposed in the accommodation space. The operation mechanism is connected to one kind of the single-pole switch, the release mechanism is connected to the three kinds of the single-pole switches. All of the three kinds of single-pole switches are asymmetrical. Each kind of single-pole switch comprises a strong side and a weak side, for each kind of single-pole switch, a contact housing on the strong side is thick and is connected to a thick shaft, a contact housing on the weak side is thin and is connected to a thin shaft. A rotor component in each kind of single-pole switch only has a single contact spring and the single contact spring is mounted on the weak side. Rotation shafts of adjacent single-pole switches are connected by a linkage shaft so that the single-pole switches are connected, a strong side of one single-pole switch is connected to a weak side of another single-pole switch.
36 Circuit breaker with fluid injection US14304335 2014-06-13 US09412541B2 2016-08-09 Francesco Pisu; Francia Galindo-Lozano; Javier Mantilla; Mathias-Dominic Buergler; Nicola Gariboldi; Oliver Cossalter; Patrick Stoller; Stephan Grob; Sami Kotilainen
A circuit breaker including an ejection device with a compartment, in which an arc-extinction medium for improving circuit breaker operation is contained, and having an ejection orifice through which the arc-extinction medium is to be ejected, wherein the ejection orifice opens out into an injection zone of the circuit breaker in which the pressure is lower than in an arcing zone when an arc is present, and wherein the arc-extinction medium and/or exhaust-cooling medium is at least partially present in liquid form, when it is contained in the ejection device.
37 Electromagnetic contactor manufacturing method US14134756 2013-12-19 US09378906B2 2016-06-28 Seiji Imamura; Kouichi Okamoto; Taku Ogawa; Yuichi Yamamoto; Kouetsu Takaya
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.
38 Electromagnetic contactor and electromagnetic contactor gas encapsulating method US14134703 2013-12-19 US08952772B2 2015-02-10 Seiji Imamura; Kouichi Okamoto; Taku Ogawa; Yuichi Yamamoto; Kouetsu Takaya
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.
39 CONTACT DEVICE, AND ELECTROMAGNETIC SWITCH IN WHICH THE CONTACT DEVICE IS USED US14505647 2014-10-03 US20150034600A1 2015-02-05 Masaru ISOZAKI; Osamu KASHIMURA; Hiroyuki TACHIKAWA; Kouetsu TAKAYA; Yuji SHIBA
A contact device includes a pair of fixed contacts fixedly disposed inside an arc extinguishing chamber and maintaining a predetermined interval from each other; a movable contact disposed inside the arc extinguishing chamber, and contacting to and separating from the pair of fixed contacts; a first arc root movement promotion portion formed on the pair of fixed contacts, and promoting a movement of a root of an arc in a direction away from the movable contact, the arc being generated when contacts are opened in which the movable contact moves away from the pair of fixed contacts; and a second arc root movement promotion portion formed on the movable contact, and promoting a movement of the root of the arc in a direction away from the relevant fixed contact.
40 Circuit Breaker With Fluid Injection US14303177 2014-06-12 US20140291291A1 2014-10-02 Francesco Pisu; Francia Galindo-Lozano; Javier Mantilla; Mathias-Dominic Buergler; Nicola Gariboldi; Oliver Cossalter; Patrick Stoller; Stephan Grob; Sami Kotilainen
A circuit breaker including an ejection device including an arc-extinction medium for improved extinction of an arc formed during a breaker operation and an exhaust-cooling medium for improved cooling of exhaust gases in the circuit breaker. Thereby, the arc-extinction liquid includes an organofluorine compound having a boiling point Tb at 1 bar higher than −60° C. and being selected from the group of: a fluoroether; a fluoroamine; a fluoroketone; and mixtures thereof.
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