WO2023218529A1 - 電磁接触器 - Google Patents
電磁接触器 Download PDFInfo
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- WO2023218529A1 WO2023218529A1 PCT/JP2022/019813 JP2022019813W WO2023218529A1 WO 2023218529 A1 WO2023218529 A1 WO 2023218529A1 JP 2022019813 W JP2022019813 W JP 2022019813W WO 2023218529 A1 WO2023218529 A1 WO 2023218529A1
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- core
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- fixed
- iron core
- electromagnetic contactor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
- H01H50/443—Connections to coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
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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
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
Definitions
- the present disclosure relates to an electromagnetic contactor that opens and closes contacts using electromagnetic force.
- the electromagnetic contactor includes an electromagnetic section that has a movable core, a fixed core, a coil, a tripping spring, and a contact spring.
- the electromagnet section forms a magnetic path between the movable iron core and the fixed iron core by applying a voltage to the coil.
- the tripping spring applies a force in the direction of separating the movable core from the fixed core. In the open state, there is a gap between the movable core and the fixed core, and as the suction force acting on the movable core through the gap exceeds the force of the tripping spring, the movable core is displaced toward the fixed core.
- the attraction force increases as the gap contracts as the amount of displacement increases, and reaches its maximum in the closed state where the movable core is attracted to the fixed core.
- the suction force when the movable core and the fixed core are attracted to each other is called the suction force.
- the force of the tripping spring and the force of the contact spring compressed by the displacement of the movable core also reach their maximum. Therefore, when designing the electromagnet part of a magnetic contactor, it is necessary to ensure that the attraction force at the initial stage of the closing operation exceeds the initial force of the tripping spring, and that the attraction force between the movable core and the fixed core is the same as that of the tripping spring after compression. It is required that the force be greater than the resultant force of the force and the force of the contact pressure spring.
- Patent Document 1 discloses an electromagnetic contactor in which magnetic parts are provided along each side of a central leg of an E-shaped movable iron core and a central leg of an E-shaped fixed iron core.
- the electromagnetic contactor disclosed in Patent Document 1 uses shape-displaceable components arranged together with magnetic components to reduce variations in temperature changes.
- the electromagnetic contactor disclosed in Patent Document 1 has a configuration in which by arranging magnetic parts, the magnetic flux generated in the air gap passes through the magnetic parts, thereby increasing the attractive force at the initial stage of the closing operation. It has become.
- the present disclosure has been made in view of the above, and an object of the present disclosure is to obtain an electromagnetic contactor equipped with an electromagnetic part that can increase the attractive force at the initial stage of the closing operation and suppress the decrease in the attractive force during attraction. With the goal.
- an electromagnetic contactor includes a cylindrical coil, a fixed core around which the coil is wound, and a displaceable arrangement facing the fixed core.
- One of the states is an open state in which the child and the fixed contact are not in contact with each other.
- the electromagnetic contactor includes a magnetic bypass component through which magnetic flux flows from the movable core to the fixed core.
- the distance between the end face of the bypass component on the movable core side and the suction surface of the fixed core in the direction of displacement of the movable core is less than or equal to the distance between the suction surface of the movable core and the suction surface of the fixed core.
- the electromagnetic contactor according to the present disclosure has the effect of being equipped with an electromagnetic part that can increase the attraction force at the initial stage of the closing operation and suppress the decrease in the attraction force during attraction.
- FIG. 1 Vertical cross-sectional view of the electromagnetic contactor according to Embodiment 1 in an open state
- External perspective view of a bypass component of an electromagnetic contactor according to Embodiment 1 A longitudinal cross-sectional view of the electromagnet part in an open state of the electromagnetic contactor according to Embodiment 1
- a longitudinal cross-sectional view of the electromagnet part in a closed state of the electromagnetic contactor according to Embodiment 1 A diagram showing electromagnetic force at the initial stage of the closing operation of the electromagnetic contactor according to Embodiment 1.
- a diagram showing electromagnetic force in a closed state of the electromagnetic contactor according to Embodiment 1 A longitudinal sectional view of the electromagnet part and the bottom case in an open state of the electromagnetic contactor according to Embodiment 2
- FIG. 1 is a longitudinal cross-sectional view of the electromagnetic contactor according to the first embodiment in an open state.
- FIG. 2 is a longitudinal cross-sectional view of the electromagnetic contactor according to the first embodiment in a closed state.
- the electromagnetic contactor 1 according to the first embodiment includes a housing 100 that includes a top case 2 and a bottom case 3.
- Top case 2 accommodates movable contact 4, fixed contacts 5A, 5B, and contact pressure spring 6.
- the bottom case 3 accommodates the movable core 7, the fixed core 8, the coil 9, the coil bobbin 10, the tripping spring 11, and the bypass components 20A and 20B.
- the cross bar 12 is arranged across the top case 2 and the bottom case 3.
- the top case 2 and the bottom case 3 are fixed by screws or engaging projections and depressions formed on both cases.
- the electromagnetic contactor 1 can be in either a closed state where the movable contact 4 contacts the fixed contacts 5A, 5B or an open state where the movable contact 4 and the fixed contacts 5A, 5B are out of contact. Take.
- the transition of the electromagnetic contactor 1 from the closed state to the open state is referred to as opening operation, and the transition from the open state to the closed state is referred to as closing operation.
- the movable iron core 7 is connected to the crossbar 12 by a fixed pin 15.
- the movable iron core 7 and the crossbar 12 constitute a movable part 50 that is displaced during the opening operation and the closing operation.
- the movable iron core 7 is constructed by stacking a plurality of E-shaped laminated steel plates and fastening them with rivets 16A and 16B.
- the movable iron core 7 includes a pair of end legs 7B, 7C and a center leg 7A.
- the fixed iron core 8 is constructed by stacking a plurality of E-shaped laminated steel plates and fastening them with rivets 16C, 16D, and 16E.
- the fixed core 8 includes a pair of end legs 8B, 8C and a center leg 8A.
- the displacement direction of the movable part 50 including the movable iron core 7 is defined as the Z direction. Further, the direction perpendicular to the Z direction and along the longitudinal direction of the movable iron core 7 is defined as the Y direction. Further, a direction perpendicular to both the Z direction and the Y direction is defined as the X direction.
- the electromagnetic contactor 1 includes an electromagnet section 60 having a movable iron core 7, a fixed iron core 8, a coil 9, and a tripping spring 11.
- the fixed contacts 5A and 5B are assembled to the top case 2 and are arranged to face the movable contact 4.
- the movable contactor 4 is connected to the crossbar 12 by a contact pressure spring 6.
- a fixed contact 13A is brazed to the fixed contact 5A.
- a fixed contact 13B is brazed to the fixed contact 5B.
- Movable contacts 14A and 14B are brazed to the movable contactor 4.
- the fixed iron core 8 has built-in coils 17A and 17B that prevent humming noise caused by minute vibrations when adhering to the movable iron core 7.
- the coil 9 is wound around a coil bobbin 10 and installed on the central leg 8A of the fixed iron core 8 in an assembled state. Further, the tripping spring 11 is disposed between the coil bobbin 10 and the movable iron core 7, and applies a pushing force to the movable iron core 7 in the ⁇ Z direction, which is the direction of separating it from the fixed iron core 8.
- FIG. 3 is an external perspective view of the bypass component of the electromagnetic contactor according to the first embodiment.
- Bypass components 20A and 20B are made of magnetic material.
- the bypass components 20A, 20B are arranged between each of the end legs 7B, 7C and the central leg 7A and outside the coil 9.
- Bypass components 20A and 20B are attached to coil bobbin 10. When the coil 9 is not energized, the distance between the end faces 21A, 21B of the bypass components 20A, 20B on the side of the movable core 7 and the suction surface 81 of the fixed core 8 in the displacement direction of the movable core 7 is equal to the suction surface of the movable core 7.
- Bypass components 20A and 20B are plate-shaped and are arranged with surfaces 23A and 23B facing the +Y direction and ⁇ Y direction, which are directions perpendicular to the displacement direction of movable iron core 7.
- the surfaces 23A and 23B of the bypass components 20A and 20B are oriented in the +Y direction and the ⁇ Y direction. It may also be a configuration directed toward.
- FIG. 4 is a longitudinal cross-sectional view of the electromagnet section of the electromagnetic contactor according to the first embodiment in an open state.
- FIG. 5 is a longitudinal cross-sectional view of the electromagnet part in the closed state of the electromagnetic contactor according to the first embodiment. Note that in FIGS. 4 and 5, illustration of the tripping spring 11 is omitted.
- a voltage is applied to the coil 9
- a magnetic flux of 30 A is generated inside the coil 9.
- the direction of the magnetic flux 30A is periodically reversed depending on whether the voltage is positive or negative, but here, the explanation will be made assuming that it flows upward from the central leg 8A of the fixed iron core 8.
- the magnetic flux 30A flowing in the ⁇ Z direction from the center leg 8A of the fixed core 8 returns from the end leg 7B of the movable core 7 to the end leg 8B of the fixed core 8.
- magnetic flux 30A flows from movable core 7 to fixed core 8 it is divided into magnetic flux 30E, which flows directly from movable core 7 to fixed core 8, and magnetic flux 30B, which flows from movable core 7 to fixed core 8 via bypass component 20B.
- the magnetic flux 30C that flows through the bypass component 20B becomes a magnetic flux 30D, flows to the fixed iron core 8, and merges with the magnetic flux 30E.
- the movable iron core 7, fixed iron core 8, and bypass component 20B are made of iron, their relative magnetic permeability is approximately 5000 times that of air. Since magnetic resistance is inversely proportional to relative magnetic permeability, the magnetic flux 30C flows more easily through the path in which the bypass component 20B, which has lower magnetic resistance than air, is arranged. In this way, the bypass component 20B allows the magnetic flux 30B to bypass the bypass component 20B when the magnetic flux 30A flowing through the movable core 7 flows to the fixed core 8, thereby reducing the magnetic flux flowing from the movable core 7 to the fixed core 8. pass it through.
- the magnetic flux 30C can easily flow through the path where the bypass component 20B is arranged.
- bypass component 20B has been described here, the same applies to the bypass component 20A, and when the magnetic flux 30A returns from the movable core 7 to the fixed core 8, it becomes easier to pass through the bypass component 20A.
- FIG. 6 is a diagram showing the electromagnetic force at the initial stage of the closing operation of the electromagnetic contactor according to the first embodiment.
- FIG. 6 also illustrates the electromagnetic force at the initial stage of the closing operation of the electromagnetic contactor according to Comparative Example 1, which does not include a bypass component.
- bypass components 20A and 20B By arranging the bypass components 20A and 20B to increase the attraction force at the initial stage of the closing operation, it is possible to reduce costs and power supply capacity.
- the material of the electromagnet section 60 can be reduced by the amount that the attraction force increases, so the material cost can be reduced. Since the adsorption force is proportional to the first power of the cross-sectional area, the cross-sectional areas of the movable iron core 7 and the fixed iron core 8 can be made small and the mass can be reduced. Furthermore, the mass of the coil 9 can be reduced due to the relationship of adsorption force ⁇ square of the number of turns of the coil.
- the current value can be reduced by the amount that the adsorption force increases. Since the attraction force is proportional to the square of the coil current, the current can be reduced by the amount of increase in the attraction force.
- the tripping spring 11 connected to the movable part 50 including the movable iron core 7 applies a force pushing the movable part 50 in the -Z direction.
- the attraction force between the cores attracts the movable part 50 in the +Z direction. Therefore, the attraction force between the cores exceeds the force applied by the tripping spring 11 to the movable part 50, so that the movable core 7 starts to be displaced toward the fixed core 8.
- the displacement of the movable contacts 14A, 14B stops when they come into contact with the fixed contacts 13A, 13B, but the contact pressure spring 6 is compressed as the movable core 7 continues to be displaced in the +Z direction. Therefore, the force acting in the ⁇ Z direction when the movable contacts 14A, 14B and the fixed contacts 13A, 13B are in contact is the resultant force of the force of the tripping spring 11 and the force of the contact spring 6.
- the magnetic flux 30A is divided into the magnetic flux 30B and the magnetic flux 30E, but most of the magnetic flux 30E flows from the movable iron core 7 to the fixed iron core 8. This is because there is no gap between the movable iron core 7 and the fixed iron core 8, or even if there is a gap, it is extremely small, so that the magnetic resistance becomes small.
- magnetic fluxes 30B, 30C, and 30D also flow via bypass components 20A and 20B. If the bypass components 20A, 20B are not magnetically saturated, the amount of magnetic flux 30C flowing through the bypass components 20A, 20B depends on the length of the bypass components 20A, 20B in the displacement direction of the movable part 50, and the longer the length, the more Easy to flow.
- the end surfaces 21A and 21B of the bypass components 20A and 20B on the movable core 7 side in the displacement direction of the movable core 7 and the adsorption surface 81 of the fixed core 8 is larger than the distance between the suction surface 71 of the movable core 7 and the suction surface 81 of the fixed core 8, or the end surfaces 22A, 22B of the bypass components 20A, 20B on the fixed core 8 side in the displacement direction of the movable core 7
- the distance between the suction surface 71 of the movable core 7 and the suction surface 81 of the fixed core 8 is greater than the distance between the suction surface 71 of the movable core 7 and the suction surface 81 of the fixed core 8, the suction force will increase at the beginning of the closing operation, but the In this state, the magnetic flux 30B flowing through the bypass components 20A and 20B increases, resulting in a structure in which the attraction force between the movable iron core 7 and the fixed iron
- the distance between 22B and the suction surface 81 of the fixed core 8 is less than or equal to the distance between the suction surface 71 of the movable core 7 and the suction surface 81 of the fixed core 8, and the distance between the bypass components 20A and 20B in the displacement direction of the movable core 7 is
- the distance between the end faces 22A, 22B on the fixed core 8 side and the attraction surface 71 of the movable core 7 is less than or equal to the distance between the attraction surface 71 of the movable core 7 and the attraction surface 81 of the fixed core 8.
- FIG. 7 is a diagram showing the electromagnetic force in the closed state of the electromagnetic contactor according to the first embodiment.
- FIG. 7 shows an electromagnetic contactor according to comparative example 2 including a bypass component in which the length of the movable part 50 in the displacement direction is larger than the distance between the attraction surface 71 of the movable core 7 and the attraction surface 81 of the fixed core 8.
- the diagram also shows the electromagnetic force in the closed state.
- the distance between the end face of the bypass component on the movable core side and the suction surface of the fixed core in the displacement direction of the movable core 7 is equal to the distance between the suction surface of the movable core and the suction surface of the fixed core.
- the bypass component of the electromagnetic contactor according to Comparative Example 2 is larger than the bypass components 20A and 20B of the electromagnetic contactor according to Embodiment 1.
- the volumes of the bypass components 20A and 20B are smaller than the electromagnetic contactor according to the second comparative example, so the amount of magnetic flux flowing through the bypass components 20A and 20B in the closed state is The amount is smaller than that of the electromagnetic contactor according to Example 2, and a decrease in the adsorption force is suppressed.
- the attraction force in the closed state is large.
- the end surfaces 21A and 21B of the bypass components 20A and 20B on the movable core 7 side and the adsorption surface of the fixed core 8 in the displacement direction of the movable core 7 81 is less than or equal to the distance between the suction surface 71 of the movable core 7 and the suction surface 81 of the fixed core 8, and the end surface 22A of the bypass components 20A, 20B on the fixed core 8 side in the displacement direction of the movable core 7 , 22B and the attraction surface 71 of the movable core 7 is less than the distance between the attraction surface 71 of the movable core 7 and the attraction surface 81 of the fixed core 8.
- the distance between the end faces 22A, 22B of the bypass components 20A, 20B on the fixed core 8 side and the suction surface 71 of the movable core 7 in the displacement direction of the movable core 7 is the distance between the suction surface 71 of the movable core 7 and the adsorption surface 81 of the fixed iron core 8 or less.
- the distance between the end faces 21A, 21B of the bypass components 20A, 20B on the movable core 7 side and the suction surface 81 of the fixed core 8 in the displacement direction of the movable core 7 is If the distance is less than the distance between the suction surface 71 and the suction surface 81 of the fixed core 8, the end surfaces 22A and 22B of the bypass components 20A and 20B on the fixed core 8 side in the displacement direction of the movable core 7 and the suction surface 71 of the movable core 7 Even if the distance between the suction surface 71 of the movable iron core 7 and the suction surface 81 of the fixed iron core 8 is larger than the distance between the suction surface 71 of the movable iron core 7 and the suction surface 81 of the fixed iron core 8, the Magnetic flux leaking to bypass components 20A and 20B is reduced.
- the distance between the end surfaces 21A, 21B of the bypass components 20A, 20B on the movable core 7 side and the suction surface 81 of the fixed core 8 in the displacement direction of the movable core 7 is If the distance between the suction surface 71 and the suction surface 81 of the fixed iron core 8 is equal to or less than the distance between the suction surface 71 and the suction surface 81 of the fixed iron core 8, it is possible to increase the suction force of the electromagnet section 60 at the initial stage of the closing operation and to suppress a decrease in the suction force during suction.
- FIG. 8 is a longitudinal cross-sectional view of the electromagnet part and the bottom case in an open state of the electromagnetic contactor according to the second embodiment.
- the reference numerals are omitted for some components that are common to the electromagnetic contactor 1 according to the first embodiment shown in FIG. Further, in FIG. 8, illustration of the tripping spring 11 is omitted.
- bypass components 20C and 20D are attached to the bottom case 3.
- Bypass components 20C and 20D are arranged between each of end legs 8B and 8C and bottom case 3.
- the positional relationship between the bypass components 20C, 20D and the suction surface 71 of the movable core 7 and the positional relationship between the bypass components 20C, 20D and the suction surface 81 of the fixed core 8 are the same as in the electromagnetic contactor 1 according to the first embodiment. be.
- the distance between the end surfaces 21C, 21D of the bypass components 20C, 20D on the side of the movable core 7 and the suction surface 81 of the fixed core 8 in the displacement direction of the movable core 7 is The distance between the suction surface 71 and the suction surface 81 of the fixed core 8 is less than or equal to the distance, and the end surfaces 22C and 22D of the bypass components 20C and 20D on the fixed core 8 side in the displacement direction of the movable core 7 and the suction surface 71 of the movable core 7 The distance is less than or equal to the distance between the attraction surface 71 of the movable iron core 7 and the attraction surface 81 of the fixed iron core 8.
- bypass components 20C and 20D may be attached to the bottom case 3 with screws or using an adhesive.
- the electromagnetic contactor 1 maintains the attraction force at the initial stage of the closing operation even if bypass components 20C and 20D cannot be installed on the coil bobbin 10 due to dimensional restrictions between the coil 9 and the fixed iron core 8. At the same time, it is possible to suppress a decrease in suction force during adsorption.
- FIG. 9 is a longitudinal cross-sectional view of the electromagnet part and the bottom case in an open state of the electromagnetic contactor according to the third embodiment.
- the reference numerals are omitted for some components that are common to the electromagnetic contactor 1 according to the first embodiment shown in FIG. Further, in FIG. 9, illustration of the tripping spring 11 is omitted.
- bypass parts 20A and 20B are attached to the coil bobbin 10, and bypass parts 20C and 20D are attached to the bottom case 3.
- the positional relationship between the bypass components 20A, 20B, 20C, 20D and the suction surface 71 of the movable core 7 and the positional relationship between the bypass components 20A, 20B, 20C, 20D and the suction surface 81 of the fixed core 8 are the same as in the first embodiment. This is the same as the electromagnetic contactor 1 and the electromagnetic contactor 1 according to the second embodiment.
- the movable core 7 side end surfaces 21A, 21B, 21C, 21D of the bypass components 20A, 20B, 20C, 20D in the displacement direction of the movable core 7 and the suction surface 81 of the fixed core 8 The distance is less than or equal to the distance between the suction surface 71 of the movable core 7 and the suction surface 81 of the fixed core 8, and the distance between the bypass components 20A, 20B, 20C, and 20D on the fixed core 8 side in the displacement direction of the movable core 7 is The distance between the end surfaces 22A, 22B, 22C, and 22D and the attraction surface 71 of the movable core 7 is less than or equal to the distance between the attraction surface 71 of the movable core 7 and the attraction surface 81 of the fixed core 8.
- the method of attaching the bypass components 20C and 20D to the bottom case 3 is not limited.
- a groove shape may be provided in the bottom case 3, and the bypass components 20C and 20D may be inserted therein. Further, the bypass components 20C and 20D may be attached to the bottom case 3 with screws or using an adhesive.
- the electromagnetic contactor 1 according to the third embodiment has the bypass components 20A, 20B, 20C, and 20D disposed so as to sandwich the end legs 8B and 8C of the fixed core 8.
- the attraction force at the initial stage of the closing operation can be further increased.
- the configuration shown in the above embodiments shows an example of the content, and it is also possible to combine it with another known technology, or a part of the configuration can be omitted or changed without departing from the gist. It is also possible.
- Electromagnetic contactor 2 Top case, 3 Bottom case, 4 Movable contact, 5A, 5B Fixed contact, 6 Contact pressure spring, 7 Movable iron core, 7A, 8A Center leg, 7B, 7C, 8B, 8C End leg, 8 Fixed iron core, 9 Coil, 10 Coil bobbin, 11 Removal spring, 12 Cross bar, 13A, 13B Fixed contact, 14A, 14B Movable contact, 15 Fixed pin, 16A, 16B, 16C, 16D, 16E Rivet, 17A, 17B Kumatori coil , 20A, 20B, 20C, 20D bypass parts, 21A, 21B, 21C, 21D, 22A, 22B, 22C, 22D end face, 23A, 23B surface, 30A, 30B, 30C, 30D, 30E magnetic flux, 50 moving part, 60 electromagnet Part, 71, 81 Adsorption surface, 100 Housing.
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Abstract
Description
図1は、実施の形態1に係る電磁接触器の開極状態での縦方向断面図である。図2は、実施の形態1に係る電磁接触器の閉極状態での縦方向断面図である。実施の形態1に係る電磁接触器1は、トップケース2及びボトムケース3によって構成される筐体100を備える。トップケース2は、可動接触子4、固定接触子5A,5B及び接圧ばね6を収容する。ボトムケース3は、可動鉄心7、固定鉄心8、コイル9、コイルボビン10、引き外しばね11及びバイパス部品20A,20Bを収容する。クロスバー12は、トップケース2とボトムケース3とに跨がって配置されている。トップケース2とボトムケース3とは、ねじ又は両ケースに形成された係合用の凹凸によって固定される。電磁接触器1は、可動接触子4が固定接触子5A,5Bに接触する閉極状態及び可動接触子4と固定接触子5A,5Bとが非接触となる開極状態のいずれかの状態をとる。電磁接触器1が閉極状態から開極状態に移行することを開極動作といい、開極状態から閉極状態に移行することを閉極動作という。
図8は、実施の形態2に係る電磁接触器の開極状態での電磁石部及びボトムケースの縦方向断面図である。図8では図1に示した実施の形態1に係る電磁接触器1と共通の一部の構成要素については、符号を省略している。また、図8では、引き外しばね11の図示は省略している。
図9は、実施の形態3に係る電磁接触器の開極状態での電磁石部及びボトムケースの縦方向断面図である。図9では図1に示した実施の形態1に係る電磁接触器1と共通の一部の構成要素については、符号を省略している。また、図9では、引き外しばね11の図示は省略している。
Claims (6)
- 筒状のコイルと、
前記コイルが巻き付けられた固定鉄心と、
前記固定鉄心と対向して変位可能に配置された可動鉄心と、
前記可動鉄心に連動して変位する可動接触子と、
前記可動接触子と対向して配置された固定接触子とを備え、
前記可動接触子が前記固定接触子に接触する閉極状態及び前記可動接触子と前記固定接触子とが非接触となる開極状態のいずれかの状態をとる電磁接触器であって、
前記可動鉄心から前記固定鉄心へ流れる磁束が経由する磁性体のバイパス部品を備え、
前記コイルに無通電の状態では、前記可動鉄心の変位方向における前記バイパス部品の前記可動鉄心側の端面と前記固定鉄心の吸着面との距離は、前記可動鉄心の吸着面と前記固定鉄心の吸着面との距離以下であることを特徴とする電磁接触器。 - 前記可動鉄心の変位方向における前記バイパス部品の前記固定鉄心側の端面と前記可動鉄心の吸着面との距離は、前記可動鉄心の吸着面と前記固定鉄心の吸着面との距離以下であることを特徴とする請求項1に記載の電磁接触器。
- 前記バイパス部品は、板状であり、前記可動鉄心の変位方向と垂直な方向に面を向けて配置されていることを特徴とする請求項1又は2に記載の電磁接触器。
- 前記固定鉄心及び前記可動鉄心の各々は、一対の端脚及び中央脚を備えたE型形状であり、
前記コイルは、前記中央脚に巻き付けられており、
前記バイパス部品は、前記端脚の各々と前記中央脚の間、かつ、前記コイルの外側に配置されていることを特徴とする請求項1から3のいずれか1項に記載の電磁接触器。 - 前記可動鉄心、前記コイル及び前記固定鉄心を収容するボトムケースを備え、
前記固定鉄心及び前記可動鉄心の各々は、一対の端脚及び中央脚を備えたE型形状であり、
前記コイルは、前記中央脚に巻き付けられており、
前記バイパス部品は、前記端脚の各々と前記ボトムケースとの間に配置されていることを特徴とする請求項1から3のいずれか1項に記載の電磁接触器。 - 前記可動鉄心、前記コイル及び前記固定鉄心を収容するボトムケースを備え、
前記固定鉄心及び前記可動鉄心の各々は、一対の端脚及び中央脚を備えたE型形状であり、
前記コイルは、前記中央脚に巻き付けられており、
前記バイパス部品は、前記端脚の各々と前記中央脚の間、かつ、前記コイルの外側、及び前記端脚の各々と前記ボトムケースとの間に配置されていることを特徴とする請求項1から3のいずれか1項に記載の電磁接触器。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022558570A JP7195491B1 (ja) | 2022-05-10 | 2022-05-10 | 電磁接触器 |
| CN202280094997.4A CN119032409A (zh) | 2022-05-10 | 2022-05-10 | 电磁接触器 |
| PCT/JP2022/019813 WO2023218529A1 (ja) | 2022-05-10 | 2022-05-10 | 電磁接触器 |
| KR1020247023664A KR102801896B1 (ko) | 2022-05-10 | 2022-05-10 | 전자 접촉기 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2022/019813 WO2023218529A1 (ja) | 2022-05-10 | 2022-05-10 | 電磁接触器 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023218529A1 true WO2023218529A1 (ja) | 2023-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2022/019813 Ceased WO2023218529A1 (ja) | 2022-05-10 | 2022-05-10 | 電磁接触器 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7195491B1 (ja) |
| KR (1) | KR102801896B1 (ja) |
| CN (1) | CN119032409A (ja) |
| WO (1) | WO2023218529A1 (ja) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000268683A (ja) * | 1999-01-14 | 2000-09-29 | Toshiba Corp | 開閉器の操作装置 |
| JP2009158179A (ja) * | 2007-12-25 | 2009-07-16 | Hitachi Industrial Equipment Systems Co Ltd | 電磁接触器 |
| WO2015122151A1 (ja) * | 2014-02-13 | 2015-08-20 | パナソニックIpマネジメント株式会社 | 電磁継電器 |
| CN212783255U (zh) * | 2020-09-23 | 2021-03-23 | 嘉润电气科技有限公司 | 一种双源双驱动接触器 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH457593A (de) * | 1967-08-03 | 1968-06-15 | Sprecher & Schuh Ag | Antriebsvorrichtung für ein elektromagnetisches Schaltgerät |
| JPS6391137A (ja) | 1986-10-03 | 1988-04-21 | Neos Co Ltd | 水不溶性有機液体のゲル化組成物 |
| FR2913142B1 (fr) * | 2007-02-27 | 2009-05-08 | Schneider Electric Ind Sas | Actionneur electromagnetique hybride. |
| CN101923937B (zh) * | 2010-08-20 | 2012-03-21 | 上海电科电器科技有限公司 | 一种低压电器用电磁铁 |
| JP5966432B2 (ja) * | 2012-02-28 | 2016-08-10 | 富士電機機器制御株式会社 | 直流電磁接触器 |
-
2022
- 2022-05-10 CN CN202280094997.4A patent/CN119032409A/zh not_active Withdrawn
- 2022-05-10 WO PCT/JP2022/019813 patent/WO2023218529A1/ja not_active Ceased
- 2022-05-10 JP JP2022558570A patent/JP7195491B1/ja active Active
- 2022-05-10 KR KR1020247023664A patent/KR102801896B1/ko active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000268683A (ja) * | 1999-01-14 | 2000-09-29 | Toshiba Corp | 開閉器の操作装置 |
| JP2009158179A (ja) * | 2007-12-25 | 2009-07-16 | Hitachi Industrial Equipment Systems Co Ltd | 電磁接触器 |
| WO2015122151A1 (ja) * | 2014-02-13 | 2015-08-20 | パナソニックIpマネジメント株式会社 | 電磁継電器 |
| CN212783255U (zh) * | 2020-09-23 | 2021-03-23 | 嘉润电气科技有限公司 | 一种双源双驱动接触器 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7195491B1 (ja) | 2022-12-23 |
| KR102801896B1 (ko) | 2025-04-30 |
| KR20240117006A (ko) | 2024-07-30 |
| CN119032409A (zh) | 2024-11-26 |
| JPWO2023218529A1 (ja) | 2023-11-16 |
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