WO2012014369A1 - 接点機構及びこれを使用した電磁接触器 - Google Patents
接点機構及びこれを使用した電磁接触器 Download PDFInfo
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- WO2012014369A1 WO2012014369A1 PCT/JP2011/003377 JP2011003377W WO2012014369A1 WO 2012014369 A1 WO2012014369 A1 WO 2012014369A1 JP 2011003377 W JP2011003377 W JP 2011003377W WO 2012014369 A1 WO2012014369 A1 WO 2012014369A1
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- contact
- fixed contact
- movable contact
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- flat
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/546—Contact arrangements for contactors having bridging contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
- H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
- H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
- H01H77/101—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening with increasing of contact pressure by electrodynamic forces before opening
Definitions
- the present invention relates to a contact mechanism including a fixed contact and a movable contact inserted in a current path and an electromagnetic contactor using the contact mechanism, and to an electromagnetic repulsive force that separates the movable contact from the fixed contact during energization. It is designed to generate a Lorentz force to resist.
- a contact mechanism for opening and closing a current path for example, a fixed contact as a fixed contact applied to a switch that generates an arc in a container when current is interrupted, such as a circuit breaker, a current limiter, and an electromagnetic contactor. Is folded in a U-shape when viewed from the side, a fixed contact is formed at the folded portion, and the movable contact of the movable contact is arranged on the fixed contact so that the movable contact can be contacted and separated.
- a switch in which the opening speed is increased by increasing the electromagnetic repulsive force acting on the coil and the arc is rapidly stretched (see, for example, Patent Document 1).
- the electromagnetic repulsive force generated as a U-shape when the fixed contact is viewed from the side is increased, and a short circuit or the like is caused by this large electromagnetic repulsive force.
- the opening speed of the movable contact at the time of interrupting a large current that interrupts a large current by increasing the arc rapidly, and the fault current can be limited to a small value.
- an electromagnetic contactor that handles a large current it is necessary to prevent the movable contact from opening due to the electromagnetic repulsion when energizing a large current, and the conventional example described in Patent Document 1 described above is applied.
- the movable contact is dealt with by increasing the spring force of the contact spring that secures the contact pressure against the fixed contact.
- the present invention has been made paying attention to the above-mentioned unsolved problems of the conventional example, and an electromagnetic repulsion that opens the movable contact when energized with a flat configuration that reduces the thickness of the movable contact in the movable direction. It is an object of the present invention to provide a contact mechanism capable of suppressing force and an electromagnetic contactor using the contact mechanism.
- a first aspect of the contact mechanism according to the present invention is a contact mechanism having a stationary contact and a movable contact inserted in a current path.
- the fixed contact has a pair of flat conductors fixedly arranged at a predetermined interval, and the movable contact can be opposed to and separated from the pair of flat conductors of the fixed contact.
- Current paths through which currents in the same direction flow are formed at least at both sides in the width direction of the fixed contact and the flat contact of the movable contact facing each other.
- both the fixed contact and the movable contact are constituted by flat plate conductors, while the current contacts that flow currents in the same direction are formed on both sides in the width direction of the plate conductors. It is possible to suppress the opening of the movable contact by generating a Lorentz force in a direction in which the contact is pressed against the fixed contact.
- U-shaped grooves that form current paths on both sides in the width direction are formed on either side of the flat conductor of either the fixed contact or the movable contact.
- a through hole that forms a current path opposite to the current path of the U-shaped groove on the other flat plate conductor, and a contact portion is formed on the plate part surrounded by the U-shaped groove. Formed.
- current paths are formed on both sides of the flat conductor of the fixed contact (or movable contact) by the U-shaped groove, and the flat conductor of the movable contact (or fixed contact) is formed by the through hole.
- a current path is formed on both sides in the width direction, and a current in the same direction flows in both current paths, thereby generating a Lorentz force that presses the movable contact against the fixed contact, thereby suppressing the opening of the movable contact.
- the 3rd aspect of the contact mechanism which concerns on this invention forms the U-shaped groove
- a fixed contact portion is formed on the plate portion, a pair of movable contact portions facing the fixed contact portion are formed at both ends of the flat conductor of the movable contact, and current is applied to both sides in the width direction inside the pair of movable contact portions.
- both the fixed contact and the movable contact are opposed to each other to form a current path through which current flows in the same direction, thereby generating a Lorentz force that presses the movable contact against the fixed contact. Opening of the contact can be suppressed.
- a fixed contact portion is formed at an inner end portion position of the pair of flat conductors of the fixed contact, and current paths are formed on both sides in the width direction outside the fixed contact portion.
- a U-shaped groove that opens outwardly at a position facing the fixed contact portion of the flat conductor of the movable contact, and is surrounded by the U-shaped groove A movable contact portion facing the fixed contact portion was formed on the portion.
- the first aspect of the electromagnetic contactor according to the present invention includes the contact mechanism structure according to any one of the first to fourth aspects, and the movable contact is coupled to the movable iron core of the operation electromagnet.
- the fixed contact is connected to an external connection terminal.
- the spring of the contact spring that makes the movable contact contact the fixed contact by generating a Lorentz force against the electromagnetic repulsion force that opens the gap between the movable contact and the fixed contact when the electromagnetic contactor is energized.
- the power can be reduced.
- the thrust of the electromagnet that drives the movable contact can also be reduced, and a small electromagnetic contactor can be provided.
- both the stationary contact and the movable contact constituting the contact mechanism are formed of a flat conductor, and the electromagnetic repulsion force in the opening direction generated in the stationary contact and the movable contact when a large current is applied is resisted. Lorentz force can be generated. For this reason, it is possible to reliably prevent the opening of the movable contact when energizing a large current without using a mechanical pressing force.
- the flat contact mechanism can surely prevent the movable contact from opening when energized with a large current in the closed state.
- a simple electromagnetic contactor can be applied.
- FIG. 1 is a main body case made of, for example, a synthetic resin.
- the main body case 1 has a two-part structure of an upper case 1a and a lower case 1b.
- the upper case 1a is internally provided with a contact mechanism CM.
- the contact mechanism CM includes a fixed contact 2 fixedly disposed on the upper case 1a, and a movable contact 3 disposed so as to be able to contact with and separate from the fixed contact 2.
- an operation electromagnet 4 for driving the movable contact 3 is disposed.
- the electromagnet 4 for operation has a stationary iron core 5 formed of an E-shaped laminated steel plate and a movable iron core 6 formed of an E-shaped laminated steel plate facing each other.
- An electromagnetic coil 8 supplied with a single-phase alternating current wound around a coil holder 7 is fixed to the central leg 5a of the fixed iron core 5.
- a return spring 9 is provided between the upper surface of the coil holder 7 and the root of the central leg 6 a of the movable iron core 6 to urge the movable iron core 6 in a direction away from the fixed iron core 5.
- a shading coil 10 is embedded in the upper end surface of the outer leg portion of the fixed iron core 5.
- the shading coil 10 can suppress fluctuations in electromagnetic attraction, noise, and vibration due to changes in alternating magnetic flux in the single-phase AC electromagnet.
- a contact holder 11 is connected to the upper end of the movable iron core 6. The contact holder 11 is pressed downward into an insertion hole 11a formed in a direction perpendicular to the axis on the upper end side thereof so that the movable contact 3 obtains a predetermined contact pressure against the fixed contact 2 by the contact spring 12. Being held.
- the fixed contact 2 and the movable contact 3 constituting the contact mechanism CM are both formed in a flat plate shape as shown in FIGS.
- the fixed contact 2 includes rectangular flat conductors 21a and 21b in a direction orthogonal to the movable direction of the movable contact 3 when viewed from a plane arranged at a predetermined distance from each other. These flat conductors 21a and 21b are formed in line symmetry with a line passing through the center between the two, and a U-shape whose open end face is the inner end face side at a position facing the longitudinal end of the movable contact 3.
- the groove portions 22a and 22b are formed through the front and back surfaces, and the fixed contact portions 24a and 24b are formed on the opposing surfaces of the plate portions 23a and 23b surrounded by the U-shaped grooves 22a and 22b with the movable contact 3. Yes.
- the movable contact 3 has a plate portion surrounded by U-shaped grooves 22a and 22b in the flat conductors 21a and 21b of the fixed contact 2 as shown in FIGS.
- Square through holes 31a and 31b spaced apart from each other are formed at positions facing 23a and 23b.
- Current paths are formed on both sides of the flat conductor 30 in the width direction by the through holes 31a and 31b.
- movable contact portions 32a and 32b are formed on the lower surface of the fixed contact 2 facing the fixed contact portions 24a and 24b at the outer end portions of the through holes 31a and 31b.
- a large current from, for example, a DC power source input from the external connection terminal 2i is input to the flat conductor 21a on the left end side, and the U-shaped groove Since the fixed contact portion 24a is formed in the plate portion 23a surrounded by 22a, the large current input to the flat plate conductor 21a passes through the current paths 25a and 26a on both side surfaces of the U-shaped groove 22a and the plate portion. 23a and is supplied from the fixed contact 24a to the movable contact 32a of the movable contact 3.
- the large current supplied to the movable contact portion 32a passes through the current paths 33a and 34a on both side surfaces of the through hole 31a, passes through the current paths 33b and 34b on both side surfaces of the through hole 31b, and travels from the movable contact portion 32b. It is supplied to the fixed contact portion 24b of the flat conductor 21b.
- the large current supplied to the fixed contact portion 24b passes through the current paths 25b and 26b on both side surfaces of the U-shaped groove 22b from the plate portion 23b, and passes through the external connection terminal 2j from the right end side of the flat plate conductor 21a. To be supplied.
- the direction of the current passing through the current paths 25a and 26a of the flat conductor 21a of the fixed contact 2 facing each other and the current paths 33a and 34a of the movable contact 3 is the same direction, and similarly the movable contacts facing each other.
- the direction of the current passing through the three current paths 33b and 34b and the current paths 25b and 26b of the flat conductor 21b of the fixed contact 2 is the same direction.
- downward Lorentz force is generated in the current paths 33a, 34a and 33b, 34b of the movable contact 3 by Fleming's left-hand rule.
- This Lorentz force can suppress the electromagnetic repulsion force in the opening direction generated between the fixed contact portions 24a and 24b and the movable contact portions 32a and 32b, and the opening of the movable contact 3 can be prevented.
- both the fixed contact 2 and the movable contact 3 are constituted by flat plate conductors 21a, 21b and 30, and currents in the same direction are applied to both sides of the plate conductors 21a, 21b and 30 facing each other in the width direction.
- the Lorentz force that presses the movable contact 3 toward the fixed contact 2 can be generated only by forming a current path to flow, and the movable contact 3 of the fixed contact 2 and the movable contact 3 constituting the contact mechanism CM.
- the thickness in the movable direction can be reduced.
- the fixed contact 2 and the movable contact 3 can be easily processed, and there is no need for another member that generates electromagnetic force or mechanical force that resists the electromagnetic repulsion force in the opening direction.
- the number of parts does not increase, and the overall configuration can be prevented from increasing in size.
- a through hole is formed in the fixed contact, and a U-shaped groove is formed in the movable contact. That is, in the second embodiment, as shown in FIGS. 3A to 3D, the fixed contact portions 41a and 41b are formed on the opposite end surfaces of the flat conductors 21a and 21b of the fixed contact 2, By forming rectangular through holes 42a and 42b outside the fixed contact portions 41a and 41b, current paths 43a, 44a, 43b and 44b are formed on both sides in the width direction of the flat conductors 21a and 21b.
- U-shaped grooves 51a and 51b with the open end on the outside penetrate the front and back at positions facing the fixed contact portions 41a and 41b of the fixed contact 2 of the flat conductor 30.
- the movable contact portions 53a and 53b that are formed and are opposed to the fixed contact portions 41a and 41b are formed on the plate portions 52a and 52b surrounded by the U-shaped grooves 51a and 51b.
- Current paths 54a, 55a, 54b, and 55b are formed on both sides of the U-shaped grooves 51a and 51b on the outer sides in the width direction.
- the contact holder 11 in the state where the electromagnetic coil 8 of the operation electromagnet 4 is in a non-energized state, the contact holder 11 is raised upward as in the first embodiment described above. As shown in FIG. 3B, the movable contact 3 is separated upward from the fixed contact 2, and the contact mechanism CM is in an open state. When a single-phase alternating current is applied to the electromagnetic coil 8 of the operation electromagnet 4 from the opened state of the contact mechanism CM, the movable iron core 6 is attracted against the return spring 9 by the fixed iron core 5.
- the contact holder 11 is lowered and the movable contact portions 53a and 53b of the movable contact 3 are brought into contact with the fixed contact portions 41a and 41b of the fixed contact 2 by the contact spring 12, as shown in FIG.
- the contact mechanism CM is closed by contact with pressure.
- a large current i input from the external connection terminal 2i is supplied from the left side to the flat conductor 21a of the fixed contact 2 as shown in FIG.
- the large current i supplied to the flat conductor 21a is supplied from the fixed contact portion 41a to the movable contact portion 53a of the movable contact 3 through the current paths 43a and 44a on both sides in the width direction of the through hole 42a.
- the large current i supplied from the movable contact portion 53a passes through the current paths 54a and 55a on both sides in the width direction of the U-shaped groove 51a from the plate portion 52a, and further on both sides in the width direction of the U-shaped groove 51b.
- the large current i supplied to the fixed contact portion 41b is supplied to the load (not shown) from the external connection terminal 2j through the current paths 43b and 44b on both sides in the width direction of the through hole 42b.
- the large current i flowing through the current paths 43a, 44a, 43b, 44b of the flat conductors 21a, 21b of the fixed contact 2 and the current path 54a facing the current paths 43a, 44a, 43b, 44b of the movable contact 3 are provided.
- 55a, 54b, and 55b are in the same direction.
- the Lorentz force that presses the movable contact 3 toward the fixed contact 2 against the electromagnetic repulsion force generated between the fixed contact 2 and the movable contact 3. Will occur. Therefore, similarly to the first embodiment described above, the movable contact 3 can be reliably prevented from opening. For this reason, the pressing force of the contact spring 12 that supports the movable contact 3 can be reduced, and the thrust generated by the electromagnet 4 for operation can be reduced accordingly, and the configuration of the entire electromagnetic contactor can be reduced.
- both the fixed contact 2 and the movable contact 3 are constituted by flat plate conductors 21a, 21b and 30, and currents in the same direction are applied to both sides of the plate conductors 21a, 21b and 30 facing each other in the width direction.
- the Lorentz force that presses the movable contact 3 toward the fixed contact 2 can be generated only by forming a current path to flow, and the movable contact 3 of the fixed contact 2 and the movable contact 3 constituting the contact mechanism CM.
- the thickness in the movable direction can be reduced.
- the fixed contact 2 and the movable contact 3 can be easily processed, and there is no need for another member that generates electromagnetic force or mechanical force that resists the electromagnetic repulsion force in the opening direction.
- the number of parts does not increase, and the overall configuration can be prevented from increasing in size.
- the stationary contact 2 and the movable contact 3 were comprised with the rectangular flat conductors 21a, 21b, and 30 seeing from the plane was demonstrated, it is limited to this. Instead, it can be formed in a parallelogram shape or an elliptical shape.
- the current path formed in the fixed contact 2 and the movable contact 3 is not limited to a straight line, but can be an arc shape or a wave shape.
- the fixed contact 2 and the movable contact 3 are connected to each other. It suffices to form a plurality of current paths facing each other and to allow current to flow in the same direction in each current path.
- the U-shaped grooves 22a, 22b, 51a, 51b may be filled with an insulating material.
- the operation electromagnet 4 is AC-excited.
- an operation electromagnet that is DC-excited may be applied, and the drive mechanism for the movable contact 3
- the present invention is not limited to the above configuration, and a drive mechanism having an arbitrary configuration can be applied.
- the contact mechanism CM according to the present invention is not limited to application to an electromagnetic contactor, but can be applied to any device such as another switch.
- the present invention generates a Lorentz force against an electromagnetic repulsion force in the opening direction generated in the stationary contact and the movable contact when a large current is applied, while forming both the fixed contact and the movable contact with a flat plate conductor.
- the contact mechanism which can suppress the opening at the time of energizing a large current and the electromagnetic contactor using the same can be provided.
- SYMBOLS 1 Main body case, 1a ... Upper case, 1b ... Lower case, 2 ... Fixed contact, 2i, 2j ... External connection terminal, 3 ... Movable contact, 4 ... Electromagnet for operation, 5 ... Fixed iron core, 6 ... Movable iron core, DESCRIPTION OF SYMBOLS 8 ... Electromagnetic coil, 9 ... Return spring, 11 ... Contact holder, 12 ... Contact spring, 13 ... Stopper, 21a, 21b ... Flat conductor, 22a, 22b ... U-shaped groove, 23a, 23b ... Plate part, 24a, 24b: fixed contact part, 25a, 25b, 26a, 26b ... current path, 30 ...
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Abstract
Description
そこで、本発明は、上記従来例の未解決の課題に着目してなされたものであり、可動接触子の可動方向の厚みを薄くする扁平な構成で通電時に可動接触子を開極させる電磁反発力を抑制することができる接点機構及びこれを使用した電磁接触器を提供することを目的としている。
この構成によっても、固定接触子及び可動接触子の双方に互いに対向して同一方向の電流が流れる電流路が形成されることにより、可動接触子を固定接触子に押し付けるローレンツ力を発生させて可動接触子の開極を抑制することができる。
この構成によっても、固定接触子及び可動接触子の双方に互いに対向して同一方向の電流が流れる電流路が形成されることにより、可動接触子を固定接触子に押し付けるローレンツ力を発生させて可動接触子の開極を抑制することができる。
この構成によると、電磁接触器の通電時に可動接触子及び固定接触子間を開極させる電磁反発力に抗するローレンツ力を発生させて、可動接触子を固定接触子に接触させる接触スプリングのバネ力を小さくすることができる。これに応じて、可動接触子を駆動する電磁石の推力も小さくすることができ、小型な電磁接触器を提供することができる。
また、上記効果を有する接点機構を電磁接触器に適用することにより、扁平な接点機構で閉成状態での大電流通電時に可動接触子が開極することを確実に防止することができ、小型な電磁接触器を適用することができる。
図1において、1は例えば合成樹脂製の本体ケースである。この本体ケース1は、上部ケース1aと下部ケース1bの2分割構造を有する。上部ケース1aには、接点機構CMが内装されている。この接点機構CMは、上部ケース1aに固定配置された固定接触子2と、この固定接触子2に接離自在に配設された可動接触子3とを備えている。
固定鉄心5の中央脚部5aにはコイルホルダ7に巻装された単相交流が供給される電磁コイル8が固定されている。また、コイルホルダ7の上面と可動鉄心6の中央脚6aの付け根との間に可動鉄心6を固定鉄心5から離れる方向に付勢する復帰スプリング9が配設されている。
そして、可動鉄心6の上端に接触子ホルダ11が連結されている。この接触子ホルダ11にはその上端側に軸直角方向に形成された挿通孔11aに、可動接触子3が接触スプリング12によって固定接触子2に対して所定の接触圧を得るように下方に押圧されて保持されている。
固定接触子2は、可動接触子3の可動方向と直交する方向に、互いに所定間隔を保って配設された平面から見て長方形状の平板導体21a,21bを有する。これら平板導体21a,21bは、両者間の中心を通る線で線対称に形成されており、可動接触子3の長手方向端部に対向する位置に、開放端面が内方端面側となるU字状溝22a,22bが表裏に貫通して形成され、これらU字状溝22a及び22bで囲まれる板部23a,23bの可動接触子3との対向面に固定接点部24a,24bが形成されている。
今、操作用電磁石4の電磁コイル8が非通電状態であるときには、固定鉄心5と可動鉄心との間に吸引力が発生せず、可動鉄心6が復帰スプリング9によって上方の位置にある。このため、接触子ホルダ11が図2(b)に示すように上方の位置となるので、固定接触子2の平板導体21a,21bと可動接触子3とが離間し、両者の固定接点部24a,24bと可動接点部32a、32bとが離間して、接点機構CMが開成状態となっている。
この固定接点部24bに供給された大電流は、板部23bからU字状溝22bの両側面側の電流路25b,26bを通り、平板導体21aの右端側から外部接続端子2jを通って負荷に供給される。
このため、可動接触子3の電流路33a,34a及び33b,34bにはフレミングの左手の法則によって下向きのローレンツ力が発生する。このローレンツ力によって固定接点部24a,24b及び可動接点部32a,32b間に発生する開極方向の電磁反発力を抑制することができ、可動接触子3の開極を防止することができる。
この第2の実施形態では、固定接触子に貫通孔を形成し、可動接触子にU字状溝を形成するようにしたものである。
すなわち、第2の実施形態では、図3(a)~(d)に示すように、固定接触子2の平板導体21a,21bの互いに対向する端面側に固定接点部41a,41bを形成し、これら固定接点部41a,41bの外側に方形の貫通孔42a,42bを形成することにより、平板導体21a,21bの幅方向両側に電流路43a,44a、43b、44bを形成している。
この接点機構CMの開成状態から、操作用電磁石4の電磁コイル8に単相交流を通電すると、固定鉄心5によって可動鉄心6が復帰スプリング9に抗して吸引される。これによって、接触子ホルダ11が下降して図3(c)に示すように、固定接触子2の固定接点部41a,41bに可動接触子3の可動接点部53a,53bが接触スプリング12による接触圧で接触し、接点機構CMが閉成状態となる。
この固定接点部41bに供給された大電流iは、貫通孔42bの幅方向両側の電流路43b,44bを通って外部接続端子2jから負荷(図示せず)に供給される。
なお、上記第1及び第2の実施形態においては、固定接触子2及び可動接触子3を平面からみて長方形の平板導体21a,21b及び30で構成した場合について説明したが、これに限定されるものではなく、平行四辺形状に形成したり、楕円形状に形成したりすることができる。
さらに、U字状溝22a,22b、51a,51b内に絶縁材を充填するようにしてもよい。
また、本発明による接点機構CMは電磁接触器に適用する場合に限らず、他の開閉器等の任意の機器に適用することができる。
Claims (5)
- 通電路に介挿された固定接触子及び可動接触子を有する接点機構であって、
前記固定接触子は、所定間隔を保って固定配置された一対の平板導体を有し、
前記可動接触子は、前記固定接触子の一対の平板導体に対向して接離可能に配設された平板導体を有し、
前記固定接触子及び前記可動接触子の平板導体の互いに対向する幅方向の少なくとも両側位置にそれぞれ同一方向の電流が流れる電流路を形成したことを特徴とする接点機構。 - 前記固定接触子及び前記可動接触子の何れか一方の平板導体に、幅方向の両側部に電流路を形成するU字状溝を表裏に貫通して形成するとともに、該U字状溝で囲まれる板部に接点部を形成し、
他方の平板導体に、前記U字状溝の前記電流路と対向する電流路を形成する貫通孔を形成した
ことを特徴とする請求項1に記載の接点機構。 - 前記固定接触子の一対の平板導体の内側寄り位置に内側を開放するU字状溝を形成するとともに、該U字状溝に囲まれる板部に固定接点部を形成し、
前記可動接触子の平板導体の両端に前記固定接点部に対向する一対の可動接点部を形成し、該一対の可動接点部の内側に幅方向両側に電流路を形成する貫通孔を形成した
ことを特徴とする請求項1に記載の接点機構。 - 前記固定接触子の一対の平板導体の内側端部位置に固定接点部を形成し、該固定接点部の外側に幅方向両側に電流路を形成する貫通孔を形成し、
前記可動接触子の平板導体の前記固定接点部に対向する位置にそれぞれ外方を開いたU字状溝を形成するとともに、該U字状溝で囲まれる板部に当該固定接点部に対向する可動接点部を形成した
ことを特徴とする請求項1に記載の接点機構。 - 前記請求項1乃至請求項4の何れか1項に記載の接点機構を備え、前記可動接触子が操作用電磁石の可動鉄心に連結され、前記固定接触子が外部接続端子に接続されていることを特徴とする電磁接触器。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020137004679A KR20130132402A (ko) | 2010-07-27 | 2011-06-14 | 접점 기구 및 이것을 사용한 전자 접촉기 |
US13/640,917 US20130115829A1 (en) | 2010-07-27 | 2011-06-14 | Contact mechanism, and electromagnetic contactor using the contact mechanism |
CN2011800183810A CN102959672A (zh) | 2010-07-27 | 2011-06-14 | 接触机构和使用该接触机构的电磁接触器 |
EP11811976.7A EP2546854A4 (en) | 2010-07-27 | 2011-06-14 | CONTACT MECHANISM, AND ELECTROMAGNETIC CONTACTOR IMPLEMENTING THE SAME |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010168177A JP2012028253A (ja) | 2010-07-27 | 2010-07-27 | 接点機構及びこれを使用した電磁接触器 |
JP2010-168177 | 2010-07-27 |
Publications (1)
Publication Number | Publication Date |
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WO2012014369A1 true WO2012014369A1 (ja) | 2012-02-02 |
Family
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PCT/JP2011/003377 WO2012014369A1 (ja) | 2010-07-27 | 2011-06-14 | 接点機構及びこれを使用した電磁接触器 |
Country Status (6)
Country | Link |
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US (1) | US20130115829A1 (ja) |
EP (1) | EP2546854A4 (ja) |
JP (1) | JP2012028253A (ja) |
KR (1) | KR20130132402A (ja) |
CN (1) | CN102959672A (ja) |
WO (1) | WO2012014369A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8841979B2 (en) | 2011-07-18 | 2014-09-23 | Anden Co., Ltd. | Relay |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5793048B2 (ja) * | 2011-10-07 | 2015-10-14 | 富士電機株式会社 | 電磁接触器 |
JP5856426B2 (ja) * | 2011-10-07 | 2016-02-09 | 富士電機株式会社 | 接点装置及びこれを使用した電磁接触器 |
JP7308416B2 (ja) * | 2018-05-23 | 2023-07-14 | パナソニックIpマネジメント株式会社 | 接点装置及び電磁継電器 |
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- 2011-06-14 WO PCT/JP2011/003377 patent/WO2012014369A1/ja active Application Filing
- 2011-06-14 CN CN2011800183810A patent/CN102959672A/zh active Pending
- 2011-06-14 EP EP11811976.7A patent/EP2546854A4/en not_active Withdrawn
- 2011-06-14 KR KR1020137004679A patent/KR20130132402A/ko not_active Application Discontinuation
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US8841979B2 (en) | 2011-07-18 | 2014-09-23 | Anden Co., Ltd. | Relay |
US9013253B2 (en) | 2011-07-18 | 2015-04-21 | Anden Co., Ltd. | Relay |
Also Published As
Publication number | Publication date |
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JP2012028253A (ja) | 2012-02-09 |
EP2546854A4 (en) | 2014-11-05 |
CN102959672A (zh) | 2013-03-06 |
US20130115829A1 (en) | 2013-05-09 |
KR20130132402A (ko) | 2013-12-04 |
EP2546854A1 (en) | 2013-01-16 |
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