WO2022181117A1 - 電磁継電器 - Google Patents
電磁継電器 Download PDFInfo
- Publication number
- WO2022181117A1 WO2022181117A1 PCT/JP2022/001551 JP2022001551W WO2022181117A1 WO 2022181117 A1 WO2022181117 A1 WO 2022181117A1 JP 2022001551 W JP2022001551 W JP 2022001551W WO 2022181117 A1 WO2022181117 A1 WO 2022181117A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- movable
- stopper
- contact
- drive shaft
- iron core
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 91
- 238000000926 separation method Methods 0.000 claims abstract description 20
- 238000013459 approach Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 21
- 230000004048 modification Effects 0.000 description 19
- 238000012986 modification Methods 0.000 description 19
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Images
Classifications
-
- 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
- H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
-
- 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
- H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/041—Details concerning assembly of relays
- H01H50/045—Details particular to contactors
-
- 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
- H01H50/648—Driving arrangements between movable part of magnetic circuit and contact intermediate part being rigidly combined with armature
Definitions
- the present invention relates to electromagnetic relays.
- Some electromagnetic relays have a movable contact piece and a movable iron core connected via a drive shaft (see Patent Document 1, for example).
- the magnetic force generated by the coil moves the movable iron core.
- the drive shaft and movable contact piece move together with the movable iron core. The contacts are thereby opened and closed.
- An object of the present invention is to enable an electromagnetic relay to operate even in a state in which the fixation between the drive shaft and the movable iron core is damaged.
- An electromagnetic relay includes a fixed contact, a movable contact, a movable contact piece, a movable iron core, a drive shaft, a coil, and a stopper.
- the movable contact faces the fixed contact.
- a movable contact piece is connected to the movable contact.
- the movable core is movable in movement directions including a contact direction in which the movable contact approaches the fixed contact and a separation direction in which the movable contact separates from the fixed contact.
- the movable core includes an axial hole extending in the moving direction.
- a drive shaft is connected to the movable contact piece.
- a drive shaft is passed through the shaft hole.
- the drive shaft is fixed to the movable core.
- the coil generates a magnetic force that moves the movable core in the movement direction.
- a stopper is connected to the drive shaft. The stopper restricts the movement of the movable core relative to the drive shaft in the direction of movement.
- the stopper restricts the movement of the movable core relative to the drive shaft in the moving direction when the fixation between the drive shaft and the movable core is lost. Therefore, even if the fixation between the drive shaft and the movable iron core is lost, the drive shaft can move together with the movable iron core. As a result, the electromagnetic relay can be operated even when the fixation between the drive shaft and the movable iron core is damaged.
- the stopper may be larger than the shaft hole. In this case, the stopper is retained in the shaft hole. Thereby, the stopper restricts the movement of the movable iron core in the movement direction with respect to the drive shaft.
- the axial hole may include a first hole and a second hole.
- the first hole may extend in the direction of movement.
- the second hole may extend in the direction of movement.
- the second hole may communicate with the first hole.
- the second hole may be larger than the first hole.
- the drive shaft may pass through the first hole.
- the stopper may be positioned within the second hole.
- the stopper may be larger than the first hole. In this case, the stopper is retained in the first hole. Thereby, the stopper restricts the movement of the movable iron core in the movement direction with respect to the drive shaft. Moreover, since the stopper is arranged in the second hole, the arrangement space for the stopper can be saved.
- the electromagnetic relay may further include intermediate parts.
- the intermediate component may be separate from the stopper.
- the intermediate component may be sandwiched between the stopper and the movable core. In this case, damage to the stopper or the movable iron core can be suppressed.
- the intermediate part may be made of a material different from that of the stopper. In this case, for example, by forming the intermediate part with a material softer than that of the stopper and the movable core, damage to the stopper or the movable core can be suppressed.
- the stopper may be formed integrally with the drive shaft. In this case, the number of assembly man-hours is reduced.
- the stopper may be separate from the drive shaft. In this case, it is easy to manufacture the drive shaft and the stopper.
- the stopper may be in contact with the movable iron core. In this case, when the fixation between the drive shaft and the movable iron core is lost, the stopper immediately restricts the movement of the movable iron core relative to the drive shaft in the moving direction.
- the stopper may be separated from the movable core in the moving direction.
- the distance between the stopper and the movable iron core in the movement direction may be smaller than the movable range of the movable iron core in the contact direction after the movable contact comes into contact with the fixed contact.
- the stopper moves to a position where it contacts the movable core and restricts the movement of the movable core with respect to the drive shaft in the moving direction at that position.
- the drive shaft thereby moves together with the movable core. Then, the drive shaft can be further moved in the contact direction from the state in which the movable contact is in contact with the fixed contact. Thereby, the contact force of the contact can be ensured.
- the stopper may be positioned in the contact direction with respect to the movable core. In this case, the stopper restricts movement of the movable iron core in the contact direction with respect to the drive shaft. Therefore, even if the fixation between the drive shaft and the movable iron core is lost, the movable contact can be brought into contact with the fixed contact.
- the stopper may be positioned in the opening direction with respect to the movable core. In this case, the stopper restricts the movement of the movable iron core in the separating direction with respect to the drive shaft. Therefore, even if the fixation between the drive shaft and the movable iron core is lost, the movable contact can be separated from the fixed contact.
- the stopper may be located inside the movable core. In this case, the stopper restricts both the movement of the movable core with respect to the drive shaft in the contact direction and the movement in the separation direction. Therefore, even if the fixing between the drive shaft and the movable iron core is lost, the movable contact can be brought into contact with the fixed contact, and the movable contact can be separated from the fixed contact.
- the stopper may include a first stopper and a second stopper.
- the first stopper may be positioned in the separation direction with respect to the movable core.
- the second stopper may be positioned in a contact direction with respect to the movable core.
- the first stopper restricts the movement of the movable core with respect to the drive shaft in the separating direction.
- the second stopper restricts movement of the movable iron core in the contact direction with respect to the drive shaft. Therefore, even if the fixing between the drive shaft and the movable iron core is lost, the movable contact can be brought into contact with the fixed contact, and the movable contact can be separated from the fixed contact.
- the movable core may include slits.
- the slit may communicate with the axial hole.
- the slit may extend in the direction of movement and in a lateral direction perpendicular to the direction of movement. In this case, the drive shaft can be easily attached to the movable core through the slit.
- the movable core may include a plurality of split bodies split on a split plane passing through the shaft hole.
- the drive shaft can be easily attached to the movable core by fixing the plurality of split bodies to each other with the drive shaft sandwiched between the plurality of split bodies.
- FIG. 1 is a cross-sectional view of an electromagnetic relay according to a first embodiment
- FIG. 1 is a cross-sectional view of an electromagnetic relay according to a first embodiment
- FIG. 1 is a cross-sectional view of an electromagnetic relay according to a first embodiment
- FIG. It is a sectional view showing a stopper concerning the 1st modification of a 1st embodiment. It is a sectional view showing the stopper concerning the 2nd modification of a 1st embodiment.
- FIG. 11 is a cross-sectional view showing a stopper according to a third modified example of the first embodiment;
- FIG. 1 is a cross-sectional view of an electromagnetic relay according to a first embodiment
- FIG. 1 is a cross-sectional view of an electromagnetic relay according to a first embodiment
- FIG. 1 is a cross-sectional view of an electromagnetic relay according to a first embodiment
- FIG. 1 is a cross-sectional view of an electromagnetic relay according to a first embodiment
- FIG. It is a sectional view
- FIG. 11 is a cross-sectional view showing a stopper according to a fourth modified example of the first embodiment; It is a sectional view showing the stopper concerning the 5th modification of a 1st embodiment.
- FIG. 11 is a cross-sectional view showing a stopper according to a sixth modification of the first embodiment;
- FIG. 11 is a cross-sectional view showing a stopper according to a sixth modification of the first embodiment;
- FIG. 21 is a cross-sectional view showing a stopper according to a seventh modified example of the first embodiment;
- FIG. 21 is a cross-sectional view showing a stopper according to a seventh modified example of the first embodiment; It is a sectional view showing a stopper concerning a 2nd embodiment.
- FIG. 11 is a cross-sectional view showing a stopper according to a fourth modified example of the first embodiment; It is a sectional view showing the stopper concerning the 5th modification of a 1st embodiment.
- FIG. 11 is a cross-section
- FIG. 11 is a cross-sectional view showing a stopper according to a first modified example of the second embodiment;
- FIG. 11 is a cross-sectional view showing a stopper according to a second modified example of the second embodiment;
- FIG. 11 is a cross-sectional view showing a stopper according to a third modified example of the second embodiment;
- FIG. 11 is a cross-sectional view showing a stopper according to a fourth modified example of the second embodiment;
- FIG. 11 is a cross-sectional view showing a stopper according to a fifth modified example of the second embodiment;
- FIG. 14 is a cross-sectional view showing a stopper according to a sixth modification of the second embodiment;
- FIG. 11 is a cross-sectional view showing a stopper according to a first modified example of the second embodiment
- FIG. 11 is a cross-sectional view showing a stopper according to a second modified example of the second embodiment
- FIG. 11 is a cross-sectional view showing a stopper according
- FIG. 21 is a cross-sectional view showing a stopper according to a seventh modified example of the second embodiment;
- FIG. 21 is a cross-sectional view showing a stopper according to a seventh modified example of the second embodiment;
- FIG. 21 is a cross-sectional view showing a stopper according to an eighth modified example of the second embodiment;
- FIG. 21 is a cross-sectional view showing a stopper according to an eighth modified example of the second embodiment;
- FIG. 21 is a cross-sectional view showing a stopper according to a ninth modification of the second embodiment; It is a sectional view showing a stopper concerning a 3rd embodiment. It is a sectional view showing a stopper concerning the 1st modification of a 3rd embodiment.
- FIG. 11 is a cross-sectional view showing a stopper according to a second modified example of the third embodiment; It is a sectional view showing a movable core concerning the 3rd modification of a 3rd embodiment.
- FIG. 11 is a cross-sectional view showing a stopper according to a fourth modified example of the third embodiment; It is a sectional view showing a movable core concerning the 5th modification of a 3rd embodiment. It is a sectional view showing a stopper concerning a 4th embodiment.
- FIG. 1 is a cross-sectional view of an electromagnetic relay 1 according to the first embodiment.
- the electromagnetic relay 1 includes a case 2, a contact device 3, and a drive device 4.
- the case 2 is made of an insulating material such as resin. However, the case 2 may be made of other materials such as ceramics.
- a contact device 3 is accommodated in the case 2 .
- the contact device 3 includes a first fixed terminal 6, a second fixed terminal 7, a movable contact piece 8, a movable mechanism 9, a first fixed contact 10, a second fixed contact 11, and a first movable contact 12. , and the second movable contact 13 .
- the direction from the first movable contact 12 to the first fixed contact 10 is defined as "contact direction (Z1)".
- the contact direction is the direction in which the movable contacts 12 and 13 approach the fixed contacts 10 and 11 .
- the direction from the first fixed contact 10 to the first movable contact 12 is defined as “separation direction (Z2)”.
- the separating direction is the direction in which the movable contacts 12 and 13 move away from the fixed contacts 10 and 11 .
- the movement directions (Z1, Z2) include the contact direction (Z1) and the separation direction (Z2).
- the first fixed terminal 6, the second fixed terminal 7, the movable contact piece 8, the first fixed contact 10, the second fixed contact 11, the first movable contact 12, and the second movable contact 13 are electrically conductive. It is made of a material that is flexible.
- the first fixed terminal 6, the second fixed terminal 7, and the movable contact piece 8 are made of metal materials known as terminal materials such as phosphor bronze, beryllium copper, brass, or tough pitch copper.
- the first fixed terminal 6, the second fixed terminal 7, and the movable contact piece 8 may be made of materials different from these materials.
- the first fixed contact 10, the second fixed contact 11, the first movable contact 12, and the second movable contact 13 are made of metal known as a contact material such as copper-based metal or silver-based metal.
- the first fixed terminal 6 and the second fixed terminal 7 are spaced apart from each other in the horizontal direction (X1, X2).
- the lateral direction (X1, X2) is the direction perpendicular to the movement direction (Z1, Z2).
- a first fixed contact 10 is connected to the first fixed terminal 6 .
- a second fixed contact 11 is connected to the second fixed terminal 7 .
- the first fixed contact 10 and the second fixed contact 11 are arranged inside the case 2 .
- the movable contact piece 8 , the first movable contact 12 and the second movable contact 13 are arranged inside the case 2 .
- the first movable contact 12 and the second movable contact 13 are connected to the movable contact piece 8 .
- the first movable contact 12 faces the first fixed contact 10 .
- the first movable contact 12 can be brought into contact with and separated from the first fixed contact 10 .
- the second movable contact 13 faces the second fixed contact 11 .
- the second movable contact 13 can be brought into contact with and separated from the second fixed contact 11 .
- the first movable contact 12 is spaced apart from the second movable contact 13 in the lateral direction (X1, X2).
- the movable contact piece 8 is movable in the movement directions (Z1, Z2). That is, the movable contact piece 8 can move in the contact direction (Z1) and the separation direction (Z2).
- the movable contact piece 8 is movable between a closed position and an open position. As shown in FIG. 1, the movable contact piece 8 is in the open position and the movable contacts 12,13 are separated from the fixed contacts 10,11. As shown in FIG. 2, when the movable contact piece 8 is in the closed position, the movable contacts 12 and 13 are in contact with the fixed contacts 10 and 11 .
- the movable mechanism 9 supports the movable contact piece 8.
- the movable mechanism 9 includes a drive shaft 15 and contact springs 16 .
- a drive shaft 15 is connected to the movable contact piece 8 .
- the drive shaft 15 extends in the movement directions (Z1, Z2) and passes through the movable contact piece 8 in the movement directions (Z1, Z2).
- the movable contact piece 8 includes holes 17 .
- the hole 17 extends in the moving direction (Z1, Z2) in the movable contact piece 8. As shown in FIG.
- the drive shaft 15 is passed through the hole 17 .
- the drive shaft 15 is movable along with the movable contact piece 8 in the movement directions (Z1, Z2). Further, the drive shaft 15 can move in the movement directions (Z1, Z2) with respect to the movable contact piece 8. As shown in FIG.
- a first holder 18 and a second holder 19 are fixed to the drive shaft 15 .
- the movable contact piece 8 is arranged between the first holder 18 and the second holder 19 .
- First holder 18 and second holder 19 are larger than hole 17 .
- the first holder 18 restricts movement of the drive shaft 15 in the opening direction (Z2).
- the contact spring 16 is arranged between the movable contact piece 8 and the second holder 19 .
- the contact spring 16 biases the movable contact piece 8 in the contact direction (Z1).
- the drive device 4 includes a coil 21, a spool 22, a movable iron core 23, a fixed iron core 24, a yoke 25, and a return spring 26.
- the driving device 4 moves the movable contact piece 8 between the open position and the closed position via the movable mechanism 9 by electromagnetic force.
- Coil 21 is wound around spool 22 .
- the movable core 23 and the fixed core 24 are arranged inside the spool 22 .
- the coil 21 generates a magnetic force that moves the movable iron core 23 in the movement direction.
- the movable iron core 23 is connected to the drive shaft 15.
- the movable iron core 23 is movable in the movement directions (Z1, Z2).
- the fixed core 24 is arranged to face the movable core 23 .
- the return spring 26 biases the movable iron core 23 in the opening direction (Z2).
- the movable core 23 includes an axial hole 27 extending in the movement direction (Z1, Z2).
- the shaft hole 27 penetrates the movable iron core 23 in the moving directions (Z1, Z2).
- the drive shaft 15 is passed through the shaft hole 27 .
- the drive shaft 15 is fixed to the movable iron core 23 .
- the drive shaft 15 is fixed to the movable core 23 by welding, for example.
- the drive shaft 15 may be fixed to the movable iron core 23 by screws or other fixing means such as caulking.
- a stopper 28 is connected to the drive shaft 15 .
- the stopper 28 is connected to the end of the drive shaft 15 .
- the stopper 28 is positioned in the separation direction (Z2) with respect to the movable core 23 .
- the stopper 28 protrudes from the drive shaft 15 in the radial direction of the drive shaft 15 .
- the stopper 28 is formed integrally with the drive shaft 15 .
- the stopper 28 is in contact with the movable iron core 23 .
- the outer shape of the stopper 28 is larger than the inner diameter of the shaft hole 27 .
- the stopper 28 restricts the movement of the movable iron core 23 with respect to the drive shaft 15 in the separation direction (Z2).
- the electromagnetic relay 1 when the coil 21 is energized, the magnetic force generated by the magnetic field generated by the coil 21 attracts the movable core 23 to the fixed core 24 . Thereby, the movable iron core 23 and the drive shaft 15 move in the contact direction (Z1) against the biasing force of the return spring 26 . As a result, the movable contact piece 8 moves in the contact direction (Z1), and as shown in FIG. come into contact with After that, as the movable core 23 moves further in the contact direction (Z1), the drive shaft 15 moves in the contact direction (Z1) with respect to the movable contact piece 8, as shown in FIG. Thereby, a high contact force is ensured between the movable contacts 12 and 13 and the fixed contacts 10 and 11 by compressing the contact spring 16 .
- the stopper 28 moves the movable iron core 23 from the drive shaft 15 in the separation direction (Z2). Regulate movement. Therefore, even if the fixation between the drive shaft 15 and the movable core 23 is lost, the drive shaft 15 can move in the separation direction (Z2) together with the movable core 23 . As a result, in the electromagnetic relay 1, the movable contacts 12, 13 can be separated from the fixed contacts 10, 11 even when the fixation between the drive shaft 15 and the movable iron core 23 is lost.
- FIG. 4 is a diagram showing a stopper 28 according to a first modified example of the first embodiment.
- the stopper 28 may have a shape in which the external shape of the stopper 28 increases in the contact direction (Z1).
- FIG. 5 is a diagram showing a stopper 28 according to a second modified example of the first embodiment.
- axial hole 27 may include first hole 31 and second hole 32 .
- the first hole 31 may extend in the movement direction (Z1, Z2).
- the second hole 32 may be positioned in the separation direction (Z2) with respect to the first hole 31 .
- the second hole 32 may extend in the movement direction (Z1, Z2) and communicate with the first hole 31 .
- the inner diameter of the second hole 32 may be larger than the inner diameter of the first hole 31 .
- the drive shaft 15 may pass through the first hole 31 .
- the outer shape of the stopper 28 is larger than the inner diameter of the first hole 31 but may be smaller than the inner diameter of the second hole 32 .
- the stopper 28 may be arranged within the second hole 32 .
- FIG. 6 is a diagram showing a stopper 28 according to a third modified example of the first embodiment.
- the inner diameter of the second hole 32 may expand in the opening direction (Z2).
- the stopper 28 may have a shape along the inner surface of the second hole 32 . That is, the outer shape of the stopper 28 may expand in the separating direction (Z2).
- FIG. 7 is a diagram showing a stopper 28 according to a fourth modified example of the first embodiment.
- the movable core 23 contacts the yoke 25 when the movable contact piece 8 is at the open position.
- the yoke 25 may include a recess 33, as shown in FIG. With the movable contact piece 8 in the open position, the stopper 28 may be located within the recess 33 .
- the movable iron core 23 may contact the case instead of the yoke 25 when the movable contact piece 8 is in the open position. In that case, the recess 33 may be provided in the case.
- FIG. 8 is a diagram showing a stopper 28 according to a fifth modified example of the first embodiment.
- the electromagnetic relay 1 may further include an intermediate component 34 .
- the intermediate component 34 is separate from the stopper 28 and may be sandwiched between the stopper 28 and the movable iron core 23 .
- Intermediate component 34 may be formed of a different material than stopper 28 .
- the stopper may be made of metal and the intermediate component 34 may be made of resin.
- the stopper may be made of metal and the intermediate piece 34 may be made of a softer metal than the stopper.
- FIG. 9A and 9B are diagrams showing a stopper 28 according to a sixth modification of the first embodiment.
- FIG. 9B is a cross-sectional view along line AA in FIG. 9A.
- the stopper 28 may be separate from the drive shaft 15, as shown in FIG. 9A.
- the drive shaft 15 may include grooves 35 .
- the stopper 28 may be attached to the drive shaft 15 by engaging with the groove 35 .
- stopper 28 may include hole 36 and slit 37 communicating with hole 36 .
- the slit 37 may extend in the lateral direction (X1, X2).
- the stopper 28 may be attached to the drive shaft 15 in the lateral direction (X1, X2) through the slit 37 .
- FIGS. 10A and 10B are diagrams showing a stopper 28 according to a seventh modified example of the first embodiment.
- FIG. 10B is a cross-sectional view along BB in FIG. 10A.
- the drive shaft 15 may include holes 38 extending in the lateral direction (X1, X2). Stopper 28 may be inserted into hole 38 .
- FIG. 11 is a cross-sectional view showing the stopper 28 of the electromagnetic relay 1 according to the second embodiment.
- the stopper 28 is positioned in the contact direction (Z1) with respect to the movable iron core 23 .
- Other configurations of the electromagnetic relay 1 according to the second embodiment are the same as those of the electromagnetic relay 1 according to the first embodiment.
- the stopper 28 restricts the movement of the movable core 23 with respect to the drive shaft 15 in the contact direction (Z1). do. Therefore, even if the fixation between the drive shaft 15 and the movable core 23 is lost, the drive shaft 15 can move in the contact direction (Z1) together with the movable core 23 . As a result, in the electromagnetic relay 1, the movable contacts 12, 13 can be brought into contact with the fixed contacts 10, 11 even when the fixation between the drive shaft 15 and the movable iron core 23 is lost.
- FIG. 12 is a diagram showing a stopper 28 according to a first modified example of the second embodiment.
- the stopper 28 may have a shape in which the external shape of the stopper 28 increases in the separating direction (Z2).
- FIG. 13 is a diagram showing a stopper 28 according to a second modified example of the second embodiment.
- the drive shaft 15 may include a first shaft 41 and a second shaft 42.
- the outer diameter of the first shaft 41 may be larger than the outer diameter of the second shaft 42 .
- the second shaft 42 may be arranged within the shaft hole 27 .
- the outer diameter of the first shaft 41 may be larger than the inner diameter of the shaft hole 27 .
- the stopper 28 may be a stepped portion between the first shaft 41 and the second shaft 42 .
- FIG. 14 is a diagram showing a stopper 28 according to a third modified example of the second embodiment.
- axial hole 27 may include first hole 43 and second hole 44 .
- the first hole 43 may extend in the movement direction (Z1, Z2).
- the second hole 44 may be positioned in the contact direction (Z1) with respect to the first hole 43 .
- the second hole 44 may extend in the movement direction (Z1, Z2) and communicate with the first hole 43 .
- the inner diameter of the second hole 44 may be larger than the inner diameter of the first hole 43 .
- the drive shaft 15 may pass through the first hole 43 .
- the outer shape of the stopper 28 is larger than the inner diameter of the first hole 43 but may be smaller than the inner diameter of the second hole 44 .
- the stopper 28 may be positioned within the second hole 44 .
- FIG. 15 is a diagram showing a stopper 28 according to a fourth modified example of the second embodiment.
- the inner diameter of the second hole 44 may expand in the contact direction (Z1).
- the stopper 28 may have a shape along the inner surface of the second hole 44 . That is, the outer shape of the stopper 28 may expand in the contact direction (Z1).
- FIG. 16 is a diagram showing a stopper 28 according to a fifth modified example of the second embodiment.
- the movable contact piece 8 When the movable contact piece 8 is in the closed position, the movable core 23 contacts the fixed core 24 .
- fixed core 24 may include recesses 45 . With the movable contact piece 8 in the closed position, the stopper 28 may be located within the recess 45 .
- FIG. 17 is a diagram showing a stopper 28 according to a sixth modified example of the second embodiment.
- the electromagnetic relay 1 may further include an intermediate component 46.
- the intermediate component 46 is separate from the stopper 28 and may be sandwiched between the stopper 28 and the movable iron core 23 .
- Intermediate component 46 may be formed of a different material than stopper 28 .
- the stopper may be made of metal and the intermediate component 46 may be made of resin.
- the stopper may be made of metal and the intermediate piece 46 may be made of a softer metal than the stopper.
- FIG. 18A and 18B are diagrams showing a stopper 28 according to a seventh modified example of the second embodiment.
- FIG. 18B is a cross-sectional view taken along line CC in FIG. 18A.
- the stopper 28 may be separate from the drive shaft 15, as shown in FIG. 18A.
- the drive shaft 15 may include grooves 47 .
- the stopper 28 may be attached to the drive shaft 15 by engaging with the groove 47 .
- stopper 28 may include hole 48 and slit 49 communicating with hole 48 .
- the slit 49 may extend in the lateral direction (X1, X2).
- the stopper 28 may be attached to the drive shaft 15 in the lateral direction (X1, X2) through the slit 49 .
- FIG. 19A and 19B are diagrams showing a stopper 28 according to an eighth modification of the second embodiment.
- FIG. 19B is a cross-sectional view along DD in FIG. 19A.
- the drive shaft 15 may include a hole 50 extending in the lateral direction (X1, X2). Stopper 28 may be inserted into hole 50 .
- FIG. 20 is a diagram showing a stopper 28 according to a ninth modification of the second embodiment.
- the stopper 28 may be separated from the movable iron core 23 in the contact direction (Z1).
- 20 shows the positions of the drive shaft 15 and the movable iron core 23 when the movable contacts 12, 13 are in contact with the fixed contacts 10, 11, as in FIG.
- the distance D1 between the stopper 28 and the movable iron core 23 in the movement direction (Z1, Z2) is the contact direction (Z1 ) may be smaller than the movable range D2 of the movable iron core 23.
- the movable range D2 of the movable core 23 is the distance between the movable core 23 and the fixed core 24 in the moving directions (Z1, Z2).
- the stopper 28 restricts the movement of the movable iron core 23 in the contact direction (Z1). Therefore, the drive shaft 15 moves in the contact direction (Z1) together with the movable iron core 23 . At that time, the drive shaft 15 moves in the contact direction (Z1) by a distance (D2-D1) corresponding to the difference between the distance D1 between the stopper 28 and the movable iron core 23 and the movable range D2 of the movable iron core 23. be able to. Thereby, contact force can be obtained between the movable contacts 12 and 13 and the fixed contacts 10 and 11 by compressing the contact spring 26 .
- FIG. 21 is a cross-sectional view showing the drive shaft 15 and the movable iron core 23 of the electromagnetic relay 1 according to the third embodiment.
- the electromagnetic relay 1 according to the third embodiment includes a first stopper 28A and a second stopper 28B.
- the first stopper 28A is positioned in the separation direction (Z2) with respect to the movable iron core 23, like the stopper 28 according to the first embodiment.
- the second stopper 28B is positioned in the contact direction (Z1) with respect to the movable iron core 23, like the stopper 28 according to the second embodiment.
- Other configurations of the electromagnetic relay 1 according to the third embodiment are the same as those of the electromagnetic relay 1 according to the first embodiment.
- the first stopper 28A moves the movable iron core 23 from the drive shaft 15 in the separation direction (Z2). Regulate movement. Therefore, even if the fixation between the drive shaft 15 and the movable core 23 is lost, the drive shaft 15 can move in the separation direction (Z2) together with the movable core 23 . Further, when the fixing between the drive shaft 15 and the movable iron core 23 is lost, the second stopper 28B restricts the movement of the movable iron core 23 with respect to the drive shaft 15 in the contact direction (Z1).
- the drive shaft 15 can move in the contact direction (Z1) together with the movable core 23 .
- the movable contacts 12, 13 and the fixed contacts 10, 11 can be opened and closed even when the fixation between the drive shaft 15 and the movable iron core 23 is lost.
- FIG. 22 is a diagram showing stoppers 28A and 28B according to a first modified example of the third embodiment. As shown in FIG. 22, the first stopper 28A may be separate from the drive shaft 15, and the second stopper 28B may be integrated with the drive shaft 15. As shown in FIG. Alternatively, conversely, the first stopper 28A may be integrated with the drive shaft 15, and the second stopper 28B may be separate from the drive shaft 15.
- FIG. 23 is a diagram showing stoppers 28A and 28B according to a second modification of the third embodiment. As shown in FIG. 23 , both the first stopper 28A and the second stopper 28B may be separate from the drive shaft 15 .
- FIG. 24 is a diagram showing a movable core 23 according to a third modified example of the third embodiment.
- FIG. 24 shows a cross section of the movable iron core 23 viewed from the moving directions (Z1, Z2).
- movable core 23 may include slit 51 communicating with shaft hole 27 .
- the slit 51 may extend in the movement direction (Z1, Z2) and the lateral direction (X1, X2).
- the slit 51 may pass through the movable core 23 in the moving directions (Z1, Z2).
- the drive shaft 15 can be attached to the movable iron core 23 through the slit 51 . Therefore, even if both the first stopper 28A and the second stopper 28B are integral with the drive shaft 15 as shown in FIG. 21, the drive shaft 15 can be easily attached to the movable iron core 23 .
- FIG. 25 is a diagram showing stoppers 28A and 28B according to a fourth modified example of the third embodiment.
- electromagnetic relay 1 may include guide 52 as shown in FIG. 25 .
- the guide 52 may extend in the movement direction (Z1, Z2).
- the movable core 23 may be arranged inside the guide 52 .
- the guide 52 may guide movement of the movable core 23 in the movement directions (Z1, Z2).
- FIG. 26 is a diagram showing a movable core 23 according to a fifth modified example of the third embodiment.
- FIG. 26 shows a cross section of the movable core 23 viewed from the moving directions (Z1, Z2).
- the movable iron core 23 may include a plurality of divided bodies 23A, 23B divided along a dividing plane 53 passing through the shaft hole 27.
- the dividing surface 53 may pass through the center of the movable core 23 .
- the dividing surface 53 may extend in the movement direction (Z1, Z2) and the lateral direction (X1, X2).
- the movable core 23 may include a first split body 23A and a second split body 23B.
- the drive shaft 15 can be fixed to the movable core 23. can be attached to Therefore, even if both the first stopper 28A and the second stopper 28B are integral with the drive shaft 15 as shown in FIG. 21, the drive shaft 15 can be easily attached to the movable iron core 23 .
- the number of divided bodies is not limited to two, and may be more than two.
- the shape of the first stopper 28A is not limited to that described above, and may be changed.
- the first stopper 28A may have the shapes of the first to seventh modifications of the first embodiment.
- the second stopper 28B may have the shapes of the first to ninth modifications of the second embodiment.
- FIG. 27 is a cross-sectional view showing the stopper 28 of the electromagnetic relay 1 according to the fourth embodiment.
- the stopper 28 is positioned inside the movable iron core 23 .
- Movable iron core 23 includes a plurality of split bodies 23A and 23B split along a split plane passing through shaft hole 27, as in the fifth modification of the third embodiment.
- the movable core 23 includes a first split body 23A and a second split body 23B.
- the first divided body 23A includes a first recessed portion 54A inside the shaft hole 27 .
- the second split body 23B includes a second recessed portion 54B inside the shaft hole 27 .
- the stopper 28 is arranged in the first recess 54A and the second recess 54B.
- the drive shaft 15 is attached to the movable core 23 by sandwiching the drive shaft 15 between the first split body 23A and the second split body 23B and fixing the first split body 23A and the second split body 23B to each other.
- the number of divided bodies is not limited to two, and may be more than two.
- Other configurations of the electromagnetic relay 1 according to the fourth embodiment are the same as those of the electromagnetic relay 1 according to the first embodiment.
- the stopper 28 prevents the movable core 23 from moving in the separation direction (Z2) with respect to the drive shaft 15. regulate. Therefore, even if the fixation between the drive shaft 15 and the movable core 23 is lost, the drive shaft 15 can move in the separation direction (Z2) together with the movable core 23 . Further, when the fixation between the drive shaft 15 and the movable iron core 23 is lost, the stopper 28 restricts the movement of the movable iron core 23 with respect to the drive shaft 15 in the contact direction (Z1).
- the drive shaft 15 can move in the contact direction (Z1) together with the movable core 23 .
- the movable contacts 12, 13 and the fixed contacts 10, 11 can be opened and closed even when the fixation between the drive shaft 15 and the movable iron core 23 is lost.
- the shape of the stopper 28 of the electromagnetic relay 1 according to the fourth embodiment is not limited to the shape described above, and may be changed.
- the stopper 28 may have the same shape as any of the modifications of the first to third embodiments described above.
- the structures of the contact device 3 and the driving device 4 are not limited to those of the above embodiment, and may be modified.
- the number of fixed contacts and movable contacts is not limited to two, and may be more than two.
- the fixed contacts 10,11 may be integrated with the fixed terminals 6,7.
- the movable contacts 12 and 13 may be integrated with the movable contact piece 8 .
- the movable contacts 12 and 13 are in contact with the fixed contacts 10 and 11 by pushing the drive shaft 15 out of the drive device 4 .
- the movable contacts 12 and 13 may come into contact with the fixed contacts 10 and 11 by pulling the drive shaft 15 into the drive device 4 .
- the lateral direction may be a direction perpendicular to the movement direction (Z1, Z2), and may be different from the lateral direction (X1, X2) in the above embodiment.
Abstract
Description
Claims (15)
- 固定接点と、
前記固定接点に向かい合う可動接点と、
前記可動接点に接続された可動接触片と、
前記可動接点が前記固定接点に近づく接触方向と、前記可動接点が前記固定接点から離れる開離方向とを含む移動方向に移動可能であり、前記移動方向に延びる軸孔を含む可動鉄心と、
前記可動接触片に接続され、前記軸孔に通され、前記可動鉄心に固定された駆動軸と、
前記可動鉄心を前記移動方向に移動させる磁力を発生させるコイルと、
前記駆動軸に接続され、前記駆動軸に対する前記可動鉄心の前記移動方向への移動を規制するストッパと、
を備える電磁継電器。 - 前記ストッパは、前記軸孔よりも大きい、
請求項1に記載の電磁継電器。 - 前記軸孔は、
前記移動方向に延びる第1孔と、
前記移動方向に延び、前記第1孔と連通し、前記第1孔よりも大きな第2孔と、
を含み、
前記駆動軸は、前記第1孔に通されており、
前記ストッパは、前記第2孔内に配置され、
前記ストッパは、前記第1孔よりも大きい、
請求項1に記載の電磁継電器。 - 前記ストッパと別体であり、前記ストッパと前記可動鉄心との間に挟み込まれる中間部品をさらに備える、
請求項1から3のいずれかに記載の電磁継電器。 - 前記中間部品は、前記ストッパと異なる材料で形成される、
請求項4に記載の電磁継電器。 - 前記ストッパは、前記駆動軸と一体的に形成される、
請求項1から5のいずれかに記載の電磁継電器。 - 前記ストッパは、前記駆動軸と別体である、
請求項1から5のいずれかに記載の電磁継電器。 - 前記ストッパは、前記可動鉄心に接触している、
請求項1から7のいずれかに記載の電磁継電器。 - 前記ストッパは、前記可動鉄心から前記移動方向に離れており、
前記移動方向における前記ストッパと前記可動鉄心との間の距離は、前記可動接点が前記固定接点に接触してからの前記可動鉄心の前記接触方向への可動範囲よりも小さい、
請求項1から8のいずれかに記載の電磁継電器。 - 前記ストッパは、前記可動鉄心に対して前記接触方向に位置する、
請求項1から9のいずれかに記載の電磁継電器。 - 前記ストッパは、前記可動鉄心に対して前記開離方向に位置する、
請求項1から9のいずれかに記載の電磁継電器。 - 前記ストッパは、前記可動鉄心内に位置する、
請求項1から9のいずれかに記載の電磁継電器。 - 前記ストッパは、
前記可動鉄心に対して前記開離方向に位置する第1ストッパと、
前記可動鉄心に対して前記接触方向に位置する第2ストッパと、
を含む、
請求項1から9のいずれかに記載の電磁継電器。 - 前記可動鉄心は、前記軸孔に連通し、前記移動方向と、前記移動方向に垂直な横方向とに延びるスリットを含む、
請求項1から13のいずれかに記載の電磁継電器。 - 前記可動鉄心は、前記軸孔を通る分割面において分割された複数の分割体を含む、
請求項1から14のいずれかに記載の電磁継電器。
Priority Applications (4)
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US18/263,345 US20240120165A1 (en) | 2021-02-26 | 2022-01-18 | Electromagnetic relay |
CN202280013048.9A CN116848609A (zh) | 2021-02-26 | 2022-01-18 | 电磁继电器 |
DE112022001277.3T DE112022001277T5 (de) | 2021-02-26 | 2022-01-18 | Elektromagnetisches Relais |
KR1020237024583A KR20230119002A (ko) | 2021-02-26 | 2022-01-18 | 전자 계전기 |
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JP2021029801A JP2022131064A (ja) | 2021-02-26 | 2021-02-26 | 電磁継電器 |
JP2021-029801 | 2021-02-26 |
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WO2022181117A1 true WO2022181117A1 (ja) | 2022-09-01 |
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PCT/JP2022/001551 WO2022181117A1 (ja) | 2021-02-26 | 2022-01-18 | 電磁継電器 |
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US (1) | US20240120165A1 (ja) |
JP (1) | JP2022131064A (ja) |
KR (1) | KR20230119002A (ja) |
CN (1) | CN116848609A (ja) |
DE (1) | DE112022001277T5 (ja) |
WO (1) | WO2022181117A1 (ja) |
Citations (9)
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JPS522137U (ja) * | 1975-06-24 | 1977-01-08 | ||
JP2003100190A (ja) * | 2001-09-21 | 2003-04-04 | Omron Corp | 封止接点装置 |
JP2003217420A (ja) * | 2002-01-18 | 2003-07-31 | Denso Corp | マグネットスイッチ |
JP2018014173A (ja) * | 2016-07-19 | 2018-01-25 | アンデン株式会社 | 電磁継電器 |
JP2019036434A (ja) * | 2017-08-10 | 2019-03-07 | オムロン株式会社 | 接続ユニット |
JP2019083171A (ja) * | 2017-10-31 | 2019-05-30 | オムロン株式会社 | 電磁継電器 |
JP2019096474A (ja) * | 2017-11-22 | 2019-06-20 | 富士電機機器制御株式会社 | 接点機構及びこれを使用した電磁接触器 |
JP2020042933A (ja) * | 2018-09-07 | 2020-03-19 | オムロン株式会社 | リレー |
JP2020136102A (ja) * | 2019-02-20 | 2020-08-31 | オムロン株式会社 | リレー |
-
2021
- 2021-02-26 JP JP2021029801A patent/JP2022131064A/ja active Pending
-
2022
- 2022-01-18 US US18/263,345 patent/US20240120165A1/en active Pending
- 2022-01-18 KR KR1020237024583A patent/KR20230119002A/ko unknown
- 2022-01-18 WO PCT/JP2022/001551 patent/WO2022181117A1/ja active Application Filing
- 2022-01-18 CN CN202280013048.9A patent/CN116848609A/zh active Pending
- 2022-01-18 DE DE112022001277.3T patent/DE112022001277T5/de active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS522137U (ja) * | 1975-06-24 | 1977-01-08 | ||
JP2003100190A (ja) * | 2001-09-21 | 2003-04-04 | Omron Corp | 封止接点装置 |
JP2003217420A (ja) * | 2002-01-18 | 2003-07-31 | Denso Corp | マグネットスイッチ |
JP2018014173A (ja) * | 2016-07-19 | 2018-01-25 | アンデン株式会社 | 電磁継電器 |
JP2019036434A (ja) * | 2017-08-10 | 2019-03-07 | オムロン株式会社 | 接続ユニット |
JP2019083171A (ja) * | 2017-10-31 | 2019-05-30 | オムロン株式会社 | 電磁継電器 |
JP2019096474A (ja) * | 2017-11-22 | 2019-06-20 | 富士電機機器制御株式会社 | 接点機構及びこれを使用した電磁接触器 |
JP2020042933A (ja) * | 2018-09-07 | 2020-03-19 | オムロン株式会社 | リレー |
JP2020136102A (ja) * | 2019-02-20 | 2020-08-31 | オムロン株式会社 | リレー |
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KR20230119002A (ko) | 2023-08-14 |
JP2022131064A (ja) | 2022-09-07 |
US20240120165A1 (en) | 2024-04-11 |
CN116848609A (zh) | 2023-10-03 |
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