WO2023281934A1 - 電磁接触器 - Google Patents
電磁接触器 Download PDFInfo
- Publication number
- WO2023281934A1 WO2023281934A1 PCT/JP2022/021813 JP2022021813W WO2023281934A1 WO 2023281934 A1 WO2023281934 A1 WO 2023281934A1 JP 2022021813 W JP2022021813 W JP 2022021813W WO 2023281934 A1 WO2023281934 A1 WO 2023281934A1
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- WO
- WIPO (PCT)
- Prior art keywords
- contact
- arc
- fixed
- fixed contact
- arc runner
- Prior art date
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- 238000005452 bending Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 7
- 230000017525 heat dissipation Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
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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
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/20—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
Definitions
- the present invention relates to an electromagnetic contactor.
- Patent Document 1 discloses a wall-shaped (U-shaped) arc-extinguishing grid having a shape surrounding contact portions of a fixed contact and a movable contact in an electromagnetic contactor. Also, in the conventional magnetic contactor, an arc runner is used to protect the insulating wall portion of the arc extinguishing chamber from the arc.
- the conventional arc runner like the arc-extinguishing grid described above, has a wall shape (U-shape) surrounding the contact portion between the fixed contact and the movable contact. It is difficult to convert
- An electromagnetic contactor accommodates a fixed contact having a fixed contact, a movable contact having a movable contact that can be brought into contact with and separated from the fixed contact, and a contact portion including the fixed contact and the movable contact.
- Appearance perspective view of the 1st stationary contact with which the magnetic contactor which concerns on 2nd Example is provided Appearance perspective view of the 1st stationary contact with which the magnetic contactor which concerns on 2nd Example is provided Appearance perspective view of the 1st stationary contact with which the magnetic contactor which concerns on 3rd Example is provided Appearance perspective view of the 1st stationary contact with which the magnetic contactor which concerns on 3rd Example is provided Appearance perspective view of the 1st stationary contact with which the magnetic contactor which concerns on 3rd Example is provided Appearance perspective view of the 1st stationary contact with which the electromagnetic contactor which concerns on 4th Example is provided Appearance perspective view of the 1st stationary contact with which the magnetic contactor which concerns on 5th Example is provided Appearance perspective view of the 1st stationary contact with which the magnetic contactor which concerns on 5th Example is provided Appearance perspective view of the 1st stationary contact with which the magnetic contactor which concerns on 6th Example is provided Appearance perspective view of an upper housing and an arc-extingu
- FIG. 1 is a cross-sectional view of an electromagnetic contactor 100 according to one embodiment.
- electromagnetic contactor 100 includes case 110 , electromagnet 120 , contact mechanism 130 , and upper housing 140 .
- the moving direction of the movable contact 133 is defined as the vertical direction (Z-axis direction)
- the longitudinal direction of the movable contact 133 is defined as the horizontal direction (Y-axis direction)
- the short side of the movable contact 133 is defined as The direction is assumed to be the front-rear direction (X-axis direction).
- the front-rear direction (X-axis direction) is an example of a “first direction”
- the left-right direction (Y-axis direction) is an example of a “second direction”.
- Case 110 is a container-like member having a hollow structure.
- the case 110 is formed using an insulating material such as synthetic resin.
- An opening 110A is formed in the center of the upper surface of the case 110 .
- a connecting member 134 is arranged inside the opening 110A.
- Electromagnet 120 is provided inside case 110 . Electromagnet 120 generates a magnetic force for moving movable contact 133 in the vertical direction. Electromagnet 120 has electromagnetic coil 121 , fixed core 122 , movable core 123 , and coil spring 124 .
- the electromagnetic coil 121 has a spool 121A and an exciting coil 121B.
- the exciting coil 121B is formed by winding a coil wire around the cylindrical portion of the spool 121A in multiple layers, and has a cylindrical shape surrounding the cylindrical portion of the spool 121A.
- the fixed core 122 and the movable core 123 are arranged vertically facing each other inside the case 110 with the electromagnetic coil 121 interposed therebetween.
- the fixed core 122 is fixedly provided below the electromagnet 120 (Z-axis negative side).
- the movable core 123 is provided above the electromagnet 120 (Z-axis positive side) so as to be movable in the vertical direction (Z-axis direction).
- fixed core 122 and movable core 123 are formed using iron.
- the coil spring 124 is provided between the movable core 123 and the electromagnetic coil 121 so as to be able to expand and contract in the vertical direction (Z-axis direction).
- the coil spring 124 biases the movable core 123 upward (positive direction of the Z-axis).
- the contact mechanism 130 is provided on the upper side of the case 110 .
- Contact mechanism 130 has first fixed contact 131 , second fixed contact 132 , movable contact 133 , connecting member 134 , coil spring 135 , first arc runner 136 and second arc runner 137 .
- the first fixed contact 131 is a conductive horizontal plate-like member.
- the first fixed contact 131 is provided on the left side (Y-axis negative side) of the central portion of the contact mechanism 130 in the left-right direction (Y-axis direction).
- the first fixed contact 131 has a longitudinal shape extending in the left-right direction (Y-axis direction).
- the first fixed contact 131 has a first fixed contact 131A on the top surface of its tip (the end on the Y-axis positive side).
- the first fixed contact 131 is screwed and fixed to the upper surface of the case 110 by a screw 131B passing through the first fixed contact 131 at its terminal end (the end on the Y-axis negative side). .
- the first fixed contact 131 is connected to a first wiring (not shown) drawn out from the first fixed contact 131 to the outside.
- the second fixed contact 132 is a conductive horizontal plate-like member.
- the second fixed contact 132 is provided on the right side (Y-axis positive side) of the central portion of the contact mechanism 130 in the left-right direction (Y-axis direction). Also, the second fixed contact 132 is provided at the same height position as the first fixed contact 131 .
- the second fixed contact 132 has a longitudinal shape extending in the left-right direction (Y-axis direction).
- the second fixed contact 132 has a second fixed contact 132A on the upper surface of the tip (the end on the Y-axis negative side).
- the second fixed contact 132 is screwed and fixed to the upper surface of the case 110 by a screw 132B passing through the second fixed contact 132 at its terminal end (the end on the Y-axis positive side). .
- the second fixed contact 132 is connected to a second wiring (not shown) drawn out from the second fixed contact 132 to the outside.
- the movable contact 133 is a conductive horizontal plate-like member.
- the movable contact 133 is provided in the center of the contact mechanism 130 in the left-right direction (Y-axis direction), and is positioned between the first fixed contact 131 and the second fixed contact 132 in the vertical direction (Z-axis direction). It is provided on the upper side (Z-axis positive side).
- the movable contact 133 has a longitudinal shape extending in the left-right direction (Y-axis direction).
- the movable contact 133 has a first movable contact 133A on its lower surface at its left end (the end on the Y-axis negative side).
- the first movable contact 133A faces the first fixed contact 131A and can be brought into contact with and separated from the first fixed contact 131A.
- the movable contact 133 has a second movable contact 133B on its lower surface at its right end (the end on the Y-axis positive side).
- the second movable contact 133B faces the second fixed contact 132A and can be brought into contact with and separated from the second fixed contact 132A.
- the connecting member 134 is a member that connects the movable contact 133 to the movable core 123 to move the movable contact 133 together with the movable core 123 in the vertical direction (Z-axis direction).
- a lower portion of the connecting member 134 is arranged in an opening 110A formed in the central portion of the upper surface of the case 110 .
- An upper portion of the connecting member 134 is arranged in an internal space of a supporting member 110B that protrudes upward from the central portion of the upper surface of the case 110 .
- the upper portion of the connecting member 134 holds the central portion of the movable contactor 133 and the coil spring 135 .
- the flat plate-like first connecting portion 134A provided below the central portion of the movable contactor 133 is integrated with the connecting member 134 when the electromagnetic contactor 100 is switched off.
- a flat plate-shaped second connection portion 134B provided in the lower portion of the connecting member 134 is fixed to the upper surface of the central portion of the movable core 123 by any fixing means.
- the coil spring 135 is placed together with the central portion of the movable contact 133 in the space formed above the connecting member 134 in the internal space of the support member 110B that protrudes upward from the central portion of the upper surface of the case 110. held.
- the coil spring 135 is provided above the central portion of the movable contact 133 in the space of the connecting member 134 .
- the coil spring 135 can expand and contract in the vertical direction (Z-axis direction).
- the coil spring 135 urges the central portion of the movable contact 133 downward (negative direction of the Z-axis).
- Coil spring 135 moves movable contact 133 relative to first fixed contact 131 and second fixed contact 132 by moving downward together with connecting member 134 when electromagnetic contactor 100 is switched on. impose.
- the first arc runner 136 is provided in an upright state on the upper surface of the first fixed contact 131 and outside the first fixed contact 131A (Y-axis negative side), and is attached to the first fixed contact 131 by any fixing means. It is fixed to the upper surface of the fixed contact 131 .
- the first arc runner 136 is formed by using a plate-shaped magnetic body (for example, a metal plate) extending in the vertical direction (Z-axis direction), and the lower part of the magnetic body extends inward (Y-axis positive side). It has a shape folded at right angles (ie, L-shape).
- the first arc runner 136 guides the arc generated between the first fixed contact 131A and the first movable contact 133A to the first arc runner 136, thereby protecting the insulating wall portion 141A of the upper housing 140. is provided to do so.
- the first arc runner 136 is preferably made of a magnetic material, but is not limited to this, and a material other than a magnetic material (for example, metal, etc.) may be used as long as it has at least an arc-inducing effect. may be used.
- the second arc runner 137 is provided in an upright state on the upper surface of the second fixed contact 132 and on the outer side (Y-axis positive side) of the second fixed contact 132A. It is fixed to the upper surface of the fixed contact 132 .
- the second arc runner 137 is formed by using a plate-shaped magnetic body (for example, a metal plate) that extends in the vertical direction (Z-axis direction), and the lower part of the magnetic body is inside (Y-axis negative side). It has a shape folded at right angles (ie, L-shape).
- the second arc runner 137 protects the insulating wall 141A of the upper housing 140 by guiding the arc generated between the second fixed contact 132A and the second movable contact 133B to the second arc runner 137. is provided to do so.
- the second arc runner 137 is made of a magnetic material, the second arc runner 137 is not limited to this, and any material other than the magnetic material (for example, metal) can be used as long as it has at least an arc induction effect. may be used.
- Upper housing 140 is provided in the upper portion of case 110 so as to surround contact mechanism 130 .
- the upper housing 140 is formed using an insulating resin material.
- the upper housing 140 has a pair of left and right arc extinguishing chambers 141 .
- a first contact portion 130A and a first arc runner 136 are accommodated in the arc-extinguishing chamber 141 on the left side (Y-axis negative side).
- 130 A of 1st contact points show the group of 131 A of 1st fixed contacts, and 133 A of 1st movable contacts.
- the arc-extinguishing chamber 141 on the right side accommodates the second contact portion 130B and the second arc runner 137 .
- a second contact portion 130B represents a set of a second fixed contact 132A and a second movable contact 133B.
- Each arc-extinguishing chamber 141 has an insulating wall portion 141A between itself and another arc-extinguishing chamber 141 adjacent in the front-rear direction (X-axis direction).
- Each arc-extinguishing chamber 141 is closed upward and laterally (in the Y-axis direction) by an arc-extinguishing cover 142 attached to the upper housing 140 .
- the electromagnetic contactor 100 when the excitation coil 121B is energized, a magnetic attractive force that overcomes the biasing force of the coil spring 124 is generated between the fixed core 122 and the movable core 123. Due to this magnetic attraction force, the movable core 123 moves downward (Z-axis negative direction). At this time, the movable contactor 133 connected to the movable core 123 via the connecting member 134 receives the urging force from the coil spring 135 moving downward (Z-axis negative direction) together with the connecting member 134, Z-axis negative direction).
- each of the first movable contact 133A and the second movable contact 133B provided on the movable contact 133 is connected to the first fixed contact 131A provided on the first fixed contact 131 and the second fixed contact.
- Each of the second fixed contacts 132A provided on the child 132 is contacted.
- the contact pressure at this time is increased by the biasing force of the coil spring 135 .
- the electromagnetic contactor 100 enters a state in which the first stationary contact 131 and the second stationary contact 132 are electrically connected to each other (that is, the switch-on state).
- the movable core 123 is urged upward (Z-axis positive direction) by the urging force of the coil spring 124 .
- the movable contactor 133 which is connected to the movable core 123 via the connecting member 134, is pushed up by the first connecting portion 134A of the connecting member 134, thereby moving upward (in the positive Z-axis direction). It is in a state of being spaced upward (Z-axis positive direction) from the first fixed contact 131 and the second fixed contact 132 . Therefore, in the electromagnetic contactor 100, as shown in FIG. 1, the first stationary contact 131 and the second stationary contact 132 are not electrically connected to each other (that is, the switch-off state).
- the electromagnetic contactor 100 is provided with the first arc runner 136 and the second arc runner 137 in the vicinity of the first contact portion 130A and the second contact portion 130B. and the switch-off state, the arc generated at the first contact portion 130A and the second contact portion 130B is guided to the first arc runner 136 and the second arc runner 137, thereby insulating the upper housing 140.
- the wall portion 141A can be protected.
- FIG. 2 is an external perspective view of the first fixed contactor 131 included in the electromagnetic contactor 100 according to the first embodiment.
- FIG. 2A shows the first stationary contact 131 with the first arc runner 136 attached.
- FIG. 2B shows the first stationary contact 131 without the first arc runner 136 attached.
- first arc runner 136 will be described below as a representative
- the configuration of the second arc runner 137 is the same as that of the first arc runner 136 except that it is bilaterally symmetrical.
- the first fixed contact 131 is a plate-like member formed using a metal plate or the like, and has a longitudinal shape whose longitudinal direction is the left-right direction (Y-axis direction).
- a first fixed contact 131A is provided on the upper surface of the tip of the first fixed contact 131 in the left-right direction (Y-axis direction).
- a first arc runner 136 is provided upright on the upper surface of the central portion of the first fixed contact 131 in the left-right direction (Y-axis direction) adjacent to the first fixed contact 131A.
- the first arc runner 136 has an L-shape bent at a bent portion 136A, and includes a horizontal portion 136B on one end side (right side) of the bent portion 136A and a horizontal portion 136B on the other side than the bent portion 136A. and a vertical portion 136C on the end side (upper side).
- the horizontal portion 136B is a flat plate-like portion that is horizontal with respect to the upper surface of the first fixed contact 131 .
- the vertical portion 136 ⁇ /b>C is a plate-like portion that is vertical to the upper surface of the first fixed contact 131 .
- the first arc runner 136 has a horizontal portion 136B fixed to the upper surface of the first fixed contact 131, and a vertical portion 136C is fixed to the upper surface of the first fixed contact 131. As shown in FIG. Stand up vertically.
- the first arc runner 136 is provided on the left side (Y-axis negative side) of the first fixed contact 131A, and the first arc runner 136 has a flat plate shape. . That is, the first arc runner 136 does not have a side wall portion between the first contact portion 130A and the insulating wall portion 141A of the arc-extinguishing chamber 141 . Thereby, the magnetic contactor 100 according to the first embodiment can bring the insulating wall portion 141A of the upper housing 140 close to the first contact portion 130A.
- the magnetic contactor 100 of the first embodiment it is possible to reduce the size of the arc-extinguishing chamber 141 while improving the protection performance of the arc-extinguishing chamber 141 with respect to the insulating wall portion 141A.
- the first arc runner 136 has an L-shaped bent shape and a horizontal portion 136B.
- the magnetic contactor 100 can suppress the manufacturing cost of the first arc runner 136, and can easily fix the first arc runner 136 to the upper surface of the first fixed contact 131 at the horizontal portion 136B.
- the horizontal portion 136B of the first arc runner 136 is fixed to the upper surface of the first fixed contact 131 by welding.
- the magnetic contactor 100 according to the first embodiment can easily and reliably fix the horizontal portion 136B of the first arc runner 136 to the upper surface of the first fixed contactor 131 .
- the width of the first arc runner 136 in the front-rear direction (X-axis direction) is less than or equal to the width in the front-rear direction (X-axis direction) of the first fixed contactor 131 (first same width in one embodiment).
- the electromagnetic contactor 100 according to the first embodiment can be installed without protruding the first arc runner 136 from the first fixed contactor 131, and the arc extinguishing chamber 141 can be made more compact.
- the magnetic contactor 100 according to the first embodiment can downsize the first arc runner 136, so that the cost of the first arc runner 136 can be suppressed.
- the first arc runner 136 is located on the upper surface of the horizontal portion 136B (the surface on the side of the first contact portion 130A), and on the central portion in the front-rear direction (X-axis direction). , and a projecting portion 136D projecting from the upper surface of the horizontal portion 136B.
- the magnetic contactor 100 according to the first embodiment can positively guide the arc generated at the first contact portion 130A to the central portion of the first arc runner 136 in the front-rear direction (X-axis direction). . Therefore, the magnetic contactor 100 according to the first embodiment can make it difficult for the arc generated at the first contact portion 130A to be transmitted to the insulating wall portion 141A of the arc extinguishing chamber 141 .
- the projecting portion 136D is formed by bending a portion of the horizontal portion 136B.
- the magnetic contactor 100 according to the first embodiment can easily provide the projecting portion 136 ⁇ /b>D to the first arc runner 136 .
- FIG. 3 is a plan view of part of the contact mechanism 130 included in the electromagnetic contactor 100 according to the first embodiment.
- the first arc runner 136 is provided on the left side (Y-axis negative side) of the first contact portion 130A, and the first arc A runner 136 has a flat plate shape. That is, the first arc runner 136 does not have a side wall portion between the first contact portion 130A and the insulating wall portion 141A of the arc-extinguishing chamber 141 . As a result, the magnetic contactor 100 according to the first embodiment can bring the insulating wall portion 141A of the arc extinguishing chamber 141 of the upper housing 140 closer to the first contact portion 130A in the front-rear direction (X-axis direction). can.
- the width of the first arc runner 136 in the front-rear direction (X-axis direction) is equal to equal to the width of
- the magnetic contactor 100 according to the first embodiment can bring the insulating wall portion 141A closer to the first contact portion 130A.
- the second arc runner 137 is provided on the right side (Y-axis positive side) of the second contact portion 130B, and A second arc runner 137 has a flat plate shape. That is, the second arc runner 137 does not have a side wall portion between the second contact portion 130B and the insulating wall portion 141A of the arc-extinguishing chamber 141 .
- the magnetic contactor 100 according to the first embodiment can bring the insulating wall portion 141A of the arc extinguishing chamber 141 of the upper housing 140 closer to the second contact portion 130B in the front-rear direction (X-axis direction). can.
- the width of the second arc runner 137 in the front-rear direction is equal to equal to the width of
- the magnetic contactor 100 according to the first embodiment can bring the insulating wall portion 141A closer to the second contact portion 130B.
- FIG. 4 is a side view of part of the contact mechanism 130 included in the electromagnetic contactor 100 according to the first embodiment.
- the magnetic contactor 100 according to the first embodiment can guide the arc generated at the first contact portion 130A to the left side (Y-axis negative side) of the first contact portion 130A.
- the first arc runner 136 since the first arc runner 136 has the protruding portion 136D, the arc generated at the first contact portion 130A is more actively generated than the first contact portion 130A. It can be induced to the left (Y-axis negative side).
- the magnetic contactor 100 prevents the arc generated at the first contact portion 130A from being insulated from the arc-extinguishing chamber 141 provided in the front-rear direction (X-axis direction) of the first contact portion 130A. It can be made difficult to be transmitted to the wall portion 141A, and therefore, damage to the insulating wall portion 141A can be suppressed.
- the second arc runner 137 is provided on the right side (Y-axis positive side) of the second contact portion 130B, and , without sidewalls. Therefore, the magnetic contactor 100 according to the first embodiment can guide the arc generated at the second contact portion 130B to the right side (Y-axis positive side) of the second contact portion 130B.
- the arc generated at the second contact portion 130B is more actively generated than the second contact portion 130B. It can be guided to the right side (Y-axis positive side).
- the magnetic contactor 100 prevents the arc generated at the second contact portion 130B from being insulated from the arc extinguishing chamber 141 provided in the front-rear direction (X-axis direction) of the second contact portion 130B. It can be made difficult to be transmitted to the wall portion 141A, and therefore, damage to the insulating wall portion 141A can be suppressed.
- FIG. 5 is a diagram for explaining the heat dissipation effect of the arc runner provided in the magnetic contactor 100 according to the first embodiment. As shown in FIG. 5, the heat generated by the contact resistance in the first contact portion 130A is transferred from the front end portion of the first fixed contact 131 to the end portion thereof.
- a first arc runner 136 is provided at the center of the upper surface of the first fixed contactor 131 in the left-right direction (Y-axis direction). It is for this reason, the magnetic contactor 100 according to the first embodiment disperses the heat transmitted to the first fixed contact 131 to the first arc runner 136 and can radiate the heat from the first arc runner 136 . That is, the first arc runner 136 functions as a radiator plate that dissipates heat generated in the first contact portion 130A.
- the heat transferred to the first fixed contact 131 is transferred to the first It can be efficiently distributed to the arc runners 136, so that the heat dissipation effect by the first arc runners 136 can be enhanced.
- the contact area with the outside air by the vertical portion 136C of the first arc runner 136 is relatively large, so the heat dissipation effect of the first arc runner 136 can be further enhanced.
- the second arc runner 137 has the same configuration as the first arc runner 136, so the heat generated by the contact resistance in the second contact portion 130B is transferred to the second arc. Heat can be efficiently dissipated by the runner 137 .
- FIG. 6 is an external perspective view of the first fixed contactor 131 included in the electromagnetic contactor 100 according to the second embodiment.
- FIG. 6A shows the first stationary contact 131 with the first arc runner 136 attached.
- FIG. 6B shows the first stationary contact 131 without the first arc runner 136 attached.
- the horizontal portion 136B of the first arc runner 136 is fixed to the upper surface of the first fixed contactor 131 by caulking.
- the magnetic contactor 100 according to the second embodiment can easily and reliably fix the horizontal portion 136B of the first arc runner 136 to the upper surface of the first stationary contactor 131 .
- two circular through holes 136E are formed side by side in the front-rear direction (X-axis direction) with the projecting portion 136D interposed therebetween.
- two columnar protrusions 131C are formed side by side in the front-rear direction (X-axis direction).
- Each of the two protrusions 131C is fitted into each of the two through holes 136E.
- Each of the two protrusions 131C is crimped by applying pressure from above. That is, the diameter of the upper end of each of the two protrusions 131C is larger than the diameter of the through hole 136E.
- the horizontal portion 136B of the first arc runner 136 is securely fixed to the upper surface of the first fixed contact 131. As shown in FIG.
- FIG. 7 is an external perspective view of the first fixed contactor 131 included in the electromagnetic contactor 100 according to the third embodiment.
- FIG. 7A shows the first stationary contact 131 with the first arc runner 136 attached.
- FIG. 7B shows the first stationary contact 131 without the first arc runner 136 attached.
- the horizontal portion 136B of the first arc runner 136 is fixed to the upper surface of the first stationary contactor 131 with the rivet 131E.
- the magnetic contactor 100 according to the third embodiment can easily and reliably fix the horizontal portion 136B of the first arc runner 136 to the upper surface of the first fixed contactor 131 .
- a circular through hole 136F is formed in the central portion of the horizontal portion 136B of the first arc runner 136.
- a circular through hole 131D is formed in the first fixed contact 131 at a position overlapping the through hole 136F.
- the rivet 131E is crimped by applying pressure from below while passing through the through holes 136F and 131D. Thereby, the diameter of the lower end of the rivet 131E becomes larger than the diameter of the through hole 131D. As a result, the horizontal portion 136B of the first arc runner 136 is securely fixed to the upper surface of the first fixed contact 131. As shown in FIG.
- FIG. 8 is an external perspective view of a first fixed contactor 131 included in the electromagnetic contactor 100 according to the fourth embodiment.
- the electromagnetic contactor 100 according to the fourth embodiment differs from the electromagnetic contactor 100 according to the third embodiment in that rivets 131F are used instead of the rivets 131E.
- the rivet 131E shown in FIG. 7 has a curved head surface.
- the rivet 131F shown in FIG. 8 has an edge portion 131Fa with a sharp tip on its head.
- the edge portion 131Fa is linearly formed along the left-right direction (Y-axis direction).
- the magnetic contactor 100 according to the fourth embodiment can more actively induce the arc generated at the first contact portion 130A to the left side (Y-axis negative side) of the first contact portion 130A. can.
- the electromagnetic contactor 100 according to the fourth embodiment prevents the arc generated at the first contact portion 130A from being insulated from the arc-extinguishing chamber 141 provided in the front-rear direction (X-axis direction) of the first contact portion 130A. It can be made difficult to be transmitted to the wall portion 141A, and therefore, damage to the insulating wall portion 141A can be suppressed.
- FIG. 9 is an external perspective view of a first fixed contactor 131 included in the electromagnetic contactor 100 according to the fifth embodiment.
- FIG. 9A shows the first stationary contact 131 with the first arc runner 138 attached.
- FIG. 9B shows the first stationary contact 131 without the first arc runner 138 attached.
- the first arc runner 138 has a columnar shape perpendicular to the upper surface of the first fixed contact 131. As shown in FIG. 9, the first arc runner 138 is press-fitted into a circular through-hole 131G formed in the first fixed contact 131 so as to be perpendicular to the upper surface of the first fixed contact 131. standing up.
- the magnetic contactor 100 according to the fifth embodiment guides the arc generated at the first contact portion 130A to the first arc runner 138 arranged on the left side (Y-axis negative side) of the first contact portion 130A. be able to. Therefore, the magnetic contactor 100 according to the fifth embodiment cuts the arc generated at the first contact portion 130A to the insulating wall of the arc extinguishing chamber 141 arranged in the front-rear direction (X-axis direction) of the first contact portion 130A. It is possible to make it difficult to be transmitted to the portion 141A.
- the insulating wall portion 141A is placed between the first contact portion 130A and the insulating wall portion 141A. It can be brought close to the contact portion 130A.
- the magnetic contactor 100 since the magnetic contactor 100 according to the fifth embodiment uses a relatively simple configuration in which the cylindrical first arc runner 138 is press-fitted into the through hole 131G of the first fixed contact 131, the first The first arc runner 138 can be easily and reliably fixed to the upper surface of the fixed contact 131 .
- FIG. 10 is an external perspective view of a first fixed contactor 131 included in the electromagnetic contactor 100 according to the sixth embodiment.
- FIG. 11 is an external perspective view of an upper housing 140 and an arc-extinguishing cover 142 included in the magnetic contactor 100 according to the sixth embodiment.
- FIG. 12 is a partially enlarged sectional view showing a press-fit state of the first arc runner 139 in the magnetic contactor 100 according to the sixth embodiment.
- the first arc runner 139 included in the electromagnetic contactor 100 is a plate-like member extending in the vertical direction (Z-axis direction). As shown in FIG. 10 , the first arc runner 139 is arranged in a posture perpendicular to the upper surface of the first fixed contact 131 . However, the first arc runner 139 is not fixed to the upper surface of the first fixed contact 131 and the upper part of the first arc runner 139 is fixed to the arc extinguishing cover 142 .
- the first arc runner 139 has a flat press-fit portion 139A on its upper portion.
- the first arc runner 139 has a press-fit portion 139A in a press-fit port 142A formed in the ceiling surface of the arc-extinguishing cover 142 (that is, the ceiling surface of the arc-extinguishing chamber 141). It is fixed to the arc-extinguishing cover 142 by being press-fitted.
- the arc extinguishing cover 142 is attached to the upper housing 140 so that the first arc runner 139 moves to the left side of the first contact portion 130A in the arc extinguishing chamber 141 (Y-axis negative side). ), it is arranged in a posture perpendicular to the upper surface of the first fixed contact 131 .
- the magnetic contactor 100 according to the sixth embodiment guides the arc generated at the first contact portion 130A to the first arc runner 139 arranged on the left side (Y-axis negative side) of the first contact portion 130A. be able to. Therefore, the magnetic contactor 100 according to the sixth embodiment cuts the arc generated at the first contact portion 130A to the insulating wall of the arc extinguishing chamber 141 arranged in the front-rear direction (X-axis direction) of the first contact portion 130A. It is possible to make it difficult to be transmitted to the portion 141A.
- the insulating wall portion 141A is placed between the first contact portion 130A and the insulating wall portion 141A. It can be brought close to the contact portion 130A.
- the magnetic contactor 100 since the magnetic contactor 100 according to the sixth embodiment uses a relatively simple configuration in which the flat plate-shaped first arc runner 139 is press-fitted into the press-fitting opening 142A of the arc-extinguishing cover 142, the first fixed contact
- the first arc runner 139 arranged in a posture perpendicular to the upper surface of the element 131 can be easily and reliably fixed.
- the first contact portion 130A can be more positively guided to the left side (Y-axis negative side) of the first contact portion 130A.
- electromagnetic contactor 110 case 110A opening 110B support member 120 electromagnet 121 electromagnetic coil 121A spool 121B excitation coil 122 fixed core 123 movable core 124 coil spring 130 contact mechanism 130A first contact portion 130B second contact portion 131 first fixed contact 131A first fixed contact 131B screw 131C protrusion 131D through hole 131E rivet 131F rivet 131Fa edge 131G through hole 132 second fixed contact 132A second fixed contact 132B screw 133 movable contact 133A first movable contact 133B second movable contact 134 connecting member 134A first connecting portion 134B second connecting portion 135 coil spring 136 first arc runner 136A bent portion 136B horizontal portion 136C vertical portion 136D projecting portion 136E through hole 136F through hole 137 second arc runner 138, 139 first arc Runner 139A Press-fit portion 139B Protruding portion 140 Upper housing 141 Arc-extinguishing chamber 141
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Abstract
Description
図1は、一実施形態に係る電磁接触器100の断面図である。図1に示すように、電磁接触器100は、ケース110、電磁石120、接点機構130、および上部筐体140を備える。なお、以降の説明では、便宜上、可動接触子133の移動方向を上下方向(Z軸方向)とし、可動接触子133の長手方向を左右方向(Y軸方向)とし、可動接触子133の短手方向を前後方向(X軸方向)とする。また、前後方向(X軸方向)を「第1の方向」の一例とし、左右方向(Y軸方向)を「第2の方向」の一例とする。
ケース110は、中空構造を有する容器状の部材である。例えば、ケース110は、合成樹脂等の絶縁材料を用いて形成される。ケース110の上面における中央部には、開口部110Aが形成されている。開口部110Aの内側には、連結部材134が配置される。
電磁石120は、ケース110の内部に設けられる。電磁石120は、可動接触子133を上下方向に移動させるための磁力を発生する。電磁石120は、電磁コイル121、固定コア122、可動コア123、およびコイルスプリング124を有する。
接点機構130は、ケース110の上側に設けられている。接点機構130は、第1固定接触子131、第2固定接触子132、可動接触子133、連結部材134、コイルスプリング135、第1アークランナー136、および第2アークランナー137を有する。
上部筐体140は、ケース110の上部において、接点機構130の周囲を取り囲むように設けられる。例えば、上部筐体140は、絶縁性を有する樹脂素材が用いられて形成される。上部筐体140は、左右一対の消弧室141を有する。左側(Y軸負側)の消弧室141には、第1接点部130Aおよび第1アークランナー136が収容される。第1接点部130Aとは、第1固定接点131Aと第1可動接点133Aとの組を示す。右側(Y軸正側)の消弧室141には、第2接点部130Bおよび第2アークランナー137が収容される。第2接点部130Bとは、第2固定接点132Aと第2可動接点133Bとの組を示す。また、各消弧室141は、前後方向(X軸方向)において隣接する他の消弧室141との間に、絶縁壁部141Aを有する。また、各消弧室141は、上方および左右方向(Y軸方向)における側方が、上部筐体140に装着される消弧カバー142によって閉塞される。
一実施形態に係る電磁接触器100は、励磁コイル121Bが通電されていないとき、可動コア123が、コイルスプリング124の付勢力により、上方(Z軸正方向)へ付勢される。これにより、可動コア123に連結部材134を介して連結されている可動接触子133は、連結部材134の第1接続部134Aによって押し上げられることによって上方(Z軸正方向)に移動して、第1固定接触子131および第2固定接触子132から上方(Z軸正方向)に離間した状態となる。したがって、電磁接触器100は、図1に示すように、第1固定接触子131および第2固定接触子132が互いに導通していない状態(すなわち、スイッチオフ状態)になる。
以下、図2を参照して、一実施形態に係る電磁接触器100の第1実施例を説明する。図2は、第1実施例に係る電磁接触器100が備える第1固定接触子131の外観斜視図である。図2Aは、第1アークランナー136が取り付けられている状態の第1固定接触子131を示す。図2Bは、第1アークランナー136が取り付けられていない状態の第1固定接触子131を示す。
図4は、第1実施例に係る電磁接触器100が備える接点機構130の一部の側面図である。
図5は、第1実施例に係る電磁接触器100が備えるアークランナーによる放熱効果を説明するための図である。図5に示すように、第1接点部130Aにおいて接触抵抗によって発生した熱は、第1固定接触子131の先端部から末端部へと伝達する。
以下、図6を参照して、一実施形態に係る電磁接触器100の第2実施例を説明する。図6は、第2実施例に係る電磁接触器100が備える第1固定接触子131の外観斜視図である。図6Aは、第1アークランナー136が取り付けられている状態の第1固定接触子131を示す。図6Bは、第1アークランナー136が取り付けられていない状態の第1固定接触子131を示す。
以下、図7を参照して、一実施形態に係る電磁接触器100の第3実施例を説明する。図7は、第3実施例に係る電磁接触器100が備える第1固定接触子131の外観斜視図である。図7Aは、第1アークランナー136が取り付けられている状態の第1固定接触子131を示す。図7Bは、第1アークランナー136が取り付けられていない状態の第1固定接触子131を示す。
以下、図8を参照して、一実施形態に係る電磁接触器100の第4実施例を説明する。図8は、第4実施例に係る電磁接触器100が備える第1固定接触子131の外観斜視図である。第4実施例に係る電磁接触器100は、リベット131Eの代わりにリベット131Fを用いる点で、第3実施例に係る電磁接触器100と異なる。
以下、図9を参照して、一実施形態に係る電磁接触器100の第5実施例を説明する。図9は、第5実施例に係る電磁接触器100が備える第1固定接触子131の外観斜視図である。図9Aは、第1アークランナー138が取り付けられている状態の第1固定接触子131を示す。図9Bは、第1アークランナー138が取り付けられていない状態の第1固定接触子131を示す。
以下、図10~図12を参照して、一実施形態に係る電磁接触器100の第6実施例を説明する。図10は、第6実施例に係る電磁接触器100が備える第1固定接触子131の外観斜視図である。図11は、第6実施例に係る電磁接触器100が備える上部筐体140および消弧カバー142の外観斜視図である。図12は、第6実施例に係る電磁接触器100における第1アークランナー139の圧入状態を示す一部拡大断面図である。
110 ケース
110A 開口部
110B 支持部材
120 電磁石
121 電磁コイル
121A スプール
121B 励磁コイル
122 固定コア
123 可動コア
124 コイルスプリング
130 接点機構
130A 第1接点部
130B 第2接点部
131 第1固定接触子
131A 第1固定接点
131B ネジ
131C 突起部
131D 貫通孔
131E リベット
131F リベット
131Fa エッジ部
131G 貫通孔
132 第2固定接触子
132A 第2固定接点
132B ネジ
133 可動接触子
133A 第1可動接点
133B 第2可動接点
134 連結部材
134A 第1接続部
134B 第2接続部
135 コイルスプリング
136 第1アークランナー
136A 折り曲げ部
136B 水平部
136C 垂直部
136D 突出部
136E 貫通孔
136F 貫通孔
137 第2アークランナー
138,139 第1アークランナー
139A 圧入部
139B 突出部
140 上部筐体
141 消弧室
141A 絶縁壁部
142 消弧カバー
142A 圧入口
Claims (13)
- 固定接点を有する固定接触子と、
前記固定接点に対して接離可能な可動接点を有する可動接触子と、
前記固定接点と前記可動接点とからなる接点部を収容する消弧室と、
前記消弧室内に配置されたアークランナーと
を備え、
前記消弧室は、
前記固定接触子の幅方向である第1の方向の側方に絶縁壁部を有し、
前記アークランナーは、
前記接点部の前記第1の方向とは直交する第2の方向の側方に設けられている
ことを特徴とする電磁接触器。 - 前記アークランナーは、
前記固定接触子から起立した状態で前記固定接触子に固定されている
ことを特徴とする請求項1に記載の電磁接触器。 - 前記アークランナーの前記第1の方向の幅は、前記固定接触子の前記第1の方向の幅以下である
ことを特徴とする請求項2に記載の電磁接触器。 - 前記アークランナーは、
折り曲げ部において折り曲げられたL字状を有し、
前記折り曲げ部よりも一端側の平板状の水平部と、
前記折り曲げ部よりも他端側の平板状の垂直部と
を有し、
前記水平部が、前記固定接触子の表面に固定され、
前記垂直部が、前記固定接触子の表面に対して起立して設けられる
ことを特徴とする請求項2または3に記載の電磁接触器。 - 前記水平部は、
溶接によって前記固定接触子の表面に固定される
ことを特徴とする請求項4に記載の電磁接触器。 - 前記水平部は、
カシメによって前記固定接触子の表面に固定される
ことを特徴とする請求項4に記載の電磁接触器。 - 前記水平部は、
リベットによって前記固定接触子の表面に固定される
ことを特徴とする請求項4に記載の電磁接触器。 - 前記リベットは、
頭部の表面にエッジ部を有する
ことを特徴とする請求項7に記載の電磁接触器。 - 前記アークランナーは、
前記接点部側の表面、且つ、前記第1の方向における中央部に、前記接点部側の表面よりも突出した突出部を有する
ことを特徴とする請求項4から8のいずれか一項に記載の電磁接触器。 - 前記突出部は、
前記アークランナーの一部が折り曲げられることによって形成される
ことを特徴とする請求項9に記載の電磁接触器。 - 前記アークランナーは、
前記接点部において発生した熱を放熱する放熱板として機能する
ことを特徴とする請求項4から10のいずれか一項に記載の電磁接触器。 - 前記アークランナーは、
柱状を有し、圧入によって前記固定接触子の表面に固定される
ことを特徴とする請求項3に記載の電磁接触器。 - 前記アークランナーは、
平板状を有し、圧入によって前記消弧室を覆う消弧カバーに固定される
ことを特徴とする請求項1に記載の電磁接触器。
Priority Applications (4)
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EP22837355.1A EP4191630A4 (en) | 2021-07-05 | 2022-05-27 | ELECTROMAGNETIC CONTACTOR |
CN202280005785.4A CN115997267A (zh) | 2021-07-05 | 2022-05-27 | 电磁接触器 |
JP2023533463A JP7380955B2 (ja) | 2021-07-05 | 2022-05-27 | 電磁接触器 |
US18/174,990 US20230223223A1 (en) | 2021-07-05 | 2023-02-27 | Electromagnetic contactor |
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JP2021-111651 | 2021-07-05 | ||
JP2021111651 | 2021-07-05 |
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US18/174,990 Continuation US20230223223A1 (en) | 2021-07-05 | 2023-02-27 | Electromagnetic contactor |
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PCT/JP2022/021813 WO2023281934A1 (ja) | 2021-07-05 | 2022-05-27 | 電磁接触器 |
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US (1) | US20230223223A1 (ja) |
EP (1) | EP4191630A4 (ja) |
JP (1) | JP7380955B2 (ja) |
CN (1) | CN115997267A (ja) |
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JP2023054942A (ja) * | 2021-10-05 | 2023-04-17 | オムロン株式会社 | 電磁継電器 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57147518U (ja) * | 1981-03-12 | 1982-09-16 | ||
JPS589251U (ja) * | 1981-07-06 | 1983-01-21 | 株式会社明電舎 | ネジ締めリベツト |
JPS58169822A (ja) * | 1982-03-31 | 1983-10-06 | 三菱電機株式会社 | 電磁開閉装置 |
JPH11162319A (ja) | 1997-12-01 | 1999-06-18 | Fuji Electric Co Ltd | 電磁接触器の接触子装置 |
JP2002251933A (ja) * | 2001-02-23 | 2002-09-06 | Mitsubishi Electric Corp | 開閉器 |
JP2002313169A (ja) * | 2001-04-11 | 2002-10-25 | Mitsubishi Electric Corp | 開閉装置 |
KR20080000473U (ko) * | 2006-10-11 | 2008-04-16 | 현대중공업 주식회사 | 전자접촉기의 아크소호구조 |
WO2014073026A1 (ja) * | 2012-11-12 | 2014-05-15 | 三菱電機株式会社 | 開閉器 |
US20190333721A1 (en) * | 2018-04-19 | 2019-10-31 | Schneider Electric Industries Sas | Stationary contact assembly and corresponding switch contact |
JP2021111651A (ja) | 2020-01-07 | 2021-08-02 | 東京エレクトロン株式会社 | 基板の位置ずれ検出方法、基板位置の異常判定方法、基板搬送制御方法、及び基板の位置ずれ検出装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR900007273B1 (ko) * | 1986-09-16 | 1990-10-06 | 미쓰비시전기 주식회사 | 회로 차단기 |
JPH08148072A (ja) * | 1994-11-18 | 1996-06-07 | Alps Electric Co Ltd | ブレーカ内蔵スイッチ |
JP3411206B2 (ja) * | 1997-12-26 | 2003-05-26 | 三菱電機株式会社 | 接点開閉機器の消弧装置 |
DE19814410C2 (de) * | 1998-03-31 | 2000-03-23 | Moeller Gmbh | Anordnung zur Festkontaktbefestigung für elektrische Schaltgeräte |
US6384702B1 (en) * | 1998-09-30 | 2002-05-07 | Rockwell Automation Technologies, Inc. | Stationary contact for an electrical contactor and method for conducting current through same |
DE10028076C1 (de) * | 2000-06-07 | 2001-10-11 | Siemens Ag | Schaltstück für ein Schaltgerät |
-
2022
- 2022-05-27 WO PCT/JP2022/021813 patent/WO2023281934A1/ja active Application Filing
- 2022-05-27 EP EP22837355.1A patent/EP4191630A4/en active Pending
- 2022-05-27 CN CN202280005785.4A patent/CN115997267A/zh active Pending
- 2022-05-27 JP JP2023533463A patent/JP7380955B2/ja active Active
-
2023
- 2023-02-27 US US18/174,990 patent/US20230223223A1/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57147518U (ja) * | 1981-03-12 | 1982-09-16 | ||
JPS589251U (ja) * | 1981-07-06 | 1983-01-21 | 株式会社明電舎 | ネジ締めリベツト |
JPS58169822A (ja) * | 1982-03-31 | 1983-10-06 | 三菱電機株式会社 | 電磁開閉装置 |
JPH11162319A (ja) | 1997-12-01 | 1999-06-18 | Fuji Electric Co Ltd | 電磁接触器の接触子装置 |
JP2002251933A (ja) * | 2001-02-23 | 2002-09-06 | Mitsubishi Electric Corp | 開閉器 |
JP2002313169A (ja) * | 2001-04-11 | 2002-10-25 | Mitsubishi Electric Corp | 開閉装置 |
KR20080000473U (ko) * | 2006-10-11 | 2008-04-16 | 현대중공업 주식회사 | 전자접촉기의 아크소호구조 |
WO2014073026A1 (ja) * | 2012-11-12 | 2014-05-15 | 三菱電機株式会社 | 開閉器 |
US20190333721A1 (en) * | 2018-04-19 | 2019-10-31 | Schneider Electric Industries Sas | Stationary contact assembly and corresponding switch contact |
JP2021111651A (ja) | 2020-01-07 | 2021-08-02 | 東京エレクトロン株式会社 | 基板の位置ずれ検出方法、基板位置の異常判定方法、基板搬送制御方法、及び基板の位置ずれ検出装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP4191630A4 |
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JPWO2023281934A1 (ja) | 2023-01-12 |
JP7380955B2 (ja) | 2023-11-15 |
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US20230223223A1 (en) | 2023-07-13 |
EP4191630A1 (en) | 2023-06-07 |
CN115997267A (zh) | 2023-04-21 |
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