DE112015006405T5 - ELECTROMAGNETIC DRIVE MECHANISM AND ASSOCIATED ELECTROMAGNETIC RELAY THEREWITH - Google Patents

Abstract

An electromagnetic drive mechanism is provided with: a first electromagnetic block (301) having a first iron core (35) and a first coil (33) wound around the first iron core (35); a second electromagnetic block (302) having a second iron core (36) spaced from the first iron core (35) and a second coil (34) wound around the second iron core (36); and a rotation block (41) rotatably disposed between the first and second iron cores (35, 36) and configured to move in response to a direction of current supplied to each of the first and second coils to turn a different direction.

Description

TECHNICAL AREA

The present invention relates to an electromagnetic drive mechanism and an electromagnetic relay provided therewith.

STATE OF THE ART

As an electromagnetic relay, for example, one has been described in Patent Document 1, for example. This conventional electromagnetic relay has an electromagnetic drive mechanism formed of an electromagnetic device and a rotary block which rotates in a different direction in response to a current supplied to a coil of the electromagnetic device. By this electromagnetic drive mechanism, a movable contact is brought into contact with a stationary contact or separated from it.

STATE OF THE ART DOCUMENT

Patent Document

• Patent Document 1: Chinese Utility Model Registration with Publication No. CN2014435354Y

OVERVIEW OF THE INVENTION

THE PROBLEM TO BE SOLVED BY THE INVENTION

However, in the above conventional electromagnetic relay, substantially L-shaped yokes are provided at both ends of an iron core of the electromagnetic device, wherein free ends of these yokes are shaped to face each other with an interval, and a rotation block is rotatably interposed is arranged facing each other free ends. Therefore, in order to rotate the rotary block, it is necessary to provide a space according to the outer shape of the rotary block, the number of turns of the coil, and the like between the yokes extending along fins and the wound coils of the bobbin Reduction in size has prevented.

In view of the above problem, an object of the present invention is to provide an electromagnetic drive mechanism capable of reducing the size and an electromagnetic relay provided with this electromagnetic drive mechanism.

MEANS TO SOLVE THE TASK

An electromagnetic driving mechanism of the present invention is provided with: a first electromagnetic block having a first iron core and a first coil wound around the first iron core; a second electromagnetic block having a second iron core spaced apart from the first iron core and a second coil wound around this second iron core; and a rotary block rotatably disposed between the first and second iron cores and configured to rotate in a different direction depending on a direction of a current supplied to each of the first and second coils.

EFFECT OF THE INVENTION

According to the electromagnetic drive mechanism of the present invention, a rotary block is disposed between the first and second iron cores spaced from each other. This allows the rotary block to rotate independently of the outer shape of the rotary block, the number of turns in the coil, and the like, thereby facilitating reduction in the size of the electromagnetic drive mechanism.

According to an embodiment of the present invention, when a center axis of the first iron core is defined as a first center axis and a length from the first center axis to an end of the first iron core in a direction orthogonal to the first center axis is defined as a first length while one Center axis of the second iron core is defined as a second center axis and a length from the second center axis to an end of the second iron core in a direction orthogonal to the second center axis is defined as a second length; the first and second iron cores are arranged such that the first one Central axis and the second center axis are parallel to each other, and such that a direct distance between the first center axis and the second center axis is smaller than a sum of the first length and the second length.

According to this embodiment, the first and second iron cores are arranged such that the first center axis and the second center axis are parallel to each other, and such that the direct distance between the first and second center axes is smaller than a sum of the first length and the second Length is. This allows the Rotation block regardless of the outer shape of the rotary block, the number of turns of the coil, and the like rotates, whereby a reduction in the size of the electromagnetic drive mechanism is facilitated.

According to an embodiment of the present invention, the first and second iron cores are arranged to have the same central axis.

According to this embodiment, the first and second iron cores are arranged to have the same central axis. This allows the rotary block to rotate independently of the outer shape of the rotary block, the number of turns of the coil, and the like, thereby facilitating reduction in the size of the electromagnetic drive mechanism.

According to an embodiment of the present invention, the first electromagnetic block includes a first bobbin formed of a trunk in which the first iron core is inserted and a first and a second guide section provided at both ends of this trunk, while the first second electromagnetic block having a second bobbin formed of a hull in which the second iron core is inserted, and a first and a second guide portion which are provided at both ends of this hull, and the first and the second bobbin by a connecting piece are integrated, which is adapted to connect the second guide portion of the first bobbin and the first guide portion of the second bobbin.

According to this embodiment, since the first and second bobbins are integrated by the connector, it is possible to facilitate attachment of even a small-size electromagnetic device to the electromagnetic relay or the like.

According to an embodiment of the present invention, the connector has a coil groove in which a lead wire of the first coil or the second coil passes.

According to this embodiment, it is possible to prevent insulation properties of the lead wire of the coil passing through the connector, and also to prevent disconnection of the lead wire.

According to an embodiment of the present invention, the rotary block is disposed in a recess formed by the second guide portion of the first bobbin, the first guide portion of the second bobbin, and the connector.

According to this embodiment, the rotary block is disposed in the connector. This can facilitate a reduction in the size of the electromagnetic drive mechanism.

According to an embodiment of the present invention, the first and second coils have a different number of turns.

According to this embodiment, a magnetic force generated in each of the first and second electromagnetic blocks can be adjusted. Thereby, it is possible to improve a degree of freedom in the design of the electromagnetic drive mechanism.

The electromagnetic relay of the present invention is provided with the drive mechanism.

According to the electromagnetic relay of the present invention, incorporation of the drive mechanism therein can facilitate reduction in size.

BRIEF DESCRIPTION OF THE DRAWINGS

1 FIG. 12 is a perspective view illustrating an electromagnetic relay of one embodiment of the present invention. FIG.

2 FIG. 15 is a perspective view illustrating a state in which a cover of the electromagnetic relay of FIG 1 was removed.

3 FIG. 11 is an exploded perspective view of the electromagnetic relay of FIG 1 ,

4 FIG. 11 is an exploded perspective view of the electromagnetic relay of FIG 1 , viewed from one direction, which differs from that of 3 is.

5 is a perspective view of a lower part of the electromagnetic relay of 1 ,

6 FIG. 12 is a perspective view of an electromagnetic device in the electromagnetic relay of FIG 1 ,

7 FIG. 15 is a perspective view of the electromagnetic device in FIG electromagnetic relay of 1 , viewed from one direction, different from that of 6 is.

8th FIG. 13 is an exploded perspective view of an electromagnetic device in the electromagnetic relay of FIG 1 ,

9 FIG. 12 is a perspective view of bobbins of the electromagnetic device in the electromagnetic relay of FIG 1 ,

10 FIG. 13 is an exploded perspective view of a rotary block in the electromagnetic relay of FIG 1 ,

11 FIG. 12 is a plan view showing an OFF state of the electromagnetic relay of FIG 1 illustrated.

12 FIG. 12 is a plan view showing an ON state of the electromagnetic relay of FIG 1 illustrated.

13 FIG. 12 is a schematic view showing a first modification of first and second iron cores in the electromagnetic relay of FIG 1 shows.

14 FIG. 12 is a schematic view showing a second modification of the first and second iron cores in the electromagnetic relay of FIG 1 shows.

15 FIG. 12 is a schematic view showing a third modification of the first and second iron cores in the electromagnetic relay of FIG 1 shows.

MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the following description, in describing configurations represented in the drawings, terms indicating directions such as "up", "down", "left", and "right" are used, and other terms, which have those. The purpose of using these terms is to facilitate the understanding of the embodiment by means of the drawings. Accordingly, these terms do not necessarily indicate directions used at the time of actual use of the embodiment of the present invention. A technical scope of the invention recited in the claims should not be interpreted restrictively by use of these terms.

As in the 1 to 4 illustrates an electromagnetic relay 100 comprising an electromagnetic drive mechanism according to an embodiment of the present invention, comprising: a base 10 ; a contact mechanism section 20 , an electromagnetic device 30 , and a drive unit 40 in the lower part 10 are included; and a cover 50 which the lower part 10 covered. Note that in the 3 and 4 the cover 50 is omitted for simplicity of description.

As in the 3 and 4 Illustrates the lower part 10 in a plan view of a rectangular box shape with one or a single open end. As in 5 illustrated is this lower part 10 provided with: a first to a third receiving portion 11 . 12 . 13 for receiving the contact mechanism section 20 ; a fourth receiving section 14 for receiving the electromagnetic device 30 ; a fifth receiving section 15 for receiving the drive unit 40 ; and a through hole 18 for fixing the electromagnetic relay 100 on a substrate or the like, which is not illustrated.

As in 5 Illustrated are the first to third receiving section 11 . 12 . 13 at intervals along a lower side surface of the base relative to the Y direction 10 arranged. The first to third recording section 11 . 12 . 13 are each provided with: connecting grooves 111 . 121 . 131 and connection holders 112 . 122 . 132 for mounting fixed connections 21 . 22 . 23 ; and connecting grooves 113 . 123 . 133 and connection holders 114 . 124 . 134 for mounting movable contact connections 24 . 25 . 26 , The connection grooves 111 . 113 . 121 . 123 . 131 . 133 are provided so as to be the lower side surface of the lower part with respect to the Y direction 10 run through.

In the first and second receiving sections 11 . 12 is a passage section 16 along the lower side surface of the base with respect to the Y direction 10 provided with the first receiving section 11 and the second receiving portion 12 communicates. Further, in the second and third receiving portions 12 . 13 a passage section 17 along the lower side surface of the base with respect to the Y direction 10 provided with the second and the third receiving portion 12 . 13 communicates. These passage sections 16 . 17 are arranged in a row.

As in 5 Illustrated is the fourth receiving section 14 along the upper side surface of the base with respect to the Y direction 10 arranged, and has projecting parts 141 . 142 on, which are provided so that they from the bottom surface of the lower part 10 protrude. These projecting parts 141 . 142 are at a distance along an X-direction at the lower end of the fourth accommodating portion with respect to the Y-direction 14 arranged.

The projecting part 141 is from a first lead 143 which has a substantially rectangular shape in a plan view, and a second and a third projection 144 . 145 formed, each having a rectangular shape in a plan view. The first and the second projection 143 . 144 are spaced along the Y direction, and the third protrusion 145 is along the X direction between the first and second protrusions 143 . 144 arranged. Furthermore, the first and second projections protrude 143 . 144 higher than the third projection 145 , An arched notch 146 is on the upper surface of the first projection 143 intended. A recessed section 147 which has a rectangular shape in a plan view is on the upper surface of the third projection 145 intended. Meanwhile, the protruding part points 142 in a plan view of a rectangular shape and is substantially as high as the third projection 145 , A recessed section 148 which has a rectangular shape in a plan view is on the upper surface of the protruding part 142 intended.

As in 5 Illustrated is the fifth receiving section 15 arranged such that it with the fourth receiving portion 14 and the passage section 17 communicates, and has a pivot bearing 151 and a rotary shaft 152 on that on the bottom surface of the base 10 are provided. The pivot bearing 151 has a recessed shape with a circular opening, and is arranged such that its center is on a straight line connecting the centers of the projecting parts 141 . 142 in the fourth receiving section 14 connects, is located. The rotary shaft 152 has a substantially cylindrical shape, and is between the pivot bearing 151 and the passage section 17 intended. Furthermore, the fifth recording section 15 with a recessed section 153 for attaching a support plate section 44 provided later. This recessed section 153 has a circular opening and is below the recessed portions in the Y direction 147 . 148 of the fourth receiving section 14 arranged.

As in 5 illustrated has the through hole 18 a circular shape and is at each of a pair of mutually facing corner portions of the base 10 intended.

As in 2 Illustrated is the contact mechanism section 20 formed from three contact mechanisms CM1 to CM3. As in the 3 and 4 illustrated is the contact mechanism CM1 of a pair consisting of a fixed terminal 21 and a movable contact terminal 24 educated. The contact mechanism CM2 is a pair consisting of a fixed terminal 22 and a movable contact terminal 25 educated. The contact mechanism CM3 is a pair consisting of a fixed terminal 23 and a movable contact terminal 26 educated.

As in the 3 and 4 Illustrated is each of the fixed ports 21 . 22 . 23 a rectangular plate-shaped body, and a first and a second wide section 61 . 62 provided at both longitudinal ends and a narrow portion 63 formed, the first wide section 61 and the second wide section 62 combines.

The first wide section 61 from each of the fixed connections 21 . 22 . 23 is with two fixed contacts 64 Mistake. These fixed contacts 64 have circular contact surfaces, each having a different diameter, and are caulked apart from each other. Furthermore, the second wide section forms 62 from each of the fixed connections 21 . 22 . 23 a fixed connection section 62 , That is, the fixed terminal section 62 which is the second wide section 62 is formed by being partially bent, and has a substantially L-shape in cross section. Note that each of the fixed connectors 21 . 22 . 23 with a room 81 provided by the first and the second wide section 61 . 62 and the narrow section 63 is defined.

As in the 3 and 4 Illustrated is each of the movable contact terminals 24 . 25 . 26 from a body 71 and a movable contact part 72 educated.

As in 3 The body is illustrated 71 a rectangular plate-shaped body and a first wide section 73 and a second wide section 74 which are provided at both longitudinal ends, and a narrow portion 75 formed, the first wide section 73 and the second wide section 74 combines. The first wide section 73 of the body 71 is cranked and one end of the movable contact part 72 is at a longitudinal end of the first wide section 73 caulked. Further, the second wide section forms 74 of the body 71 a movable connection section 74 , That is, the movable terminal section 74 , which is the second wide section 74 is formed by being partially bent, and has a substantially L-shape in cross section, similar to the fixed terminal portion 62 , Note that the body 71 with a room 82 is provided by the first wide section 73 and the second wide section 74 and the narrow section 75 is defined.

As in 4 Illustrated is the movable contact part 72 formed by laminating four rectangular conductive leaf springs, and has two movable contacts 76 on that the fixed contact 64 assigned. A longitudinal end of the movable contact part 72 is on the body 71 caulked to form a tight end. The other longitudinal end of the movable contact part 72 Make a free end and on this side of the free end are the two moving contacts 76 caulked apart from each other. Furthermore, this is movable contact part 72 provided with a slot passing through the center of the movable contact 76 passes through and longitudinally along the movable contact part 72 extends. The provision of this slot allows independent movement of the two movable contacts 76 ,

A curved section 77 is on the side of the fixed end of the movable contact part 72 intended. In addition to the slot between the moving contacts 76 is the curved section 77 are provided with two slits which are parallel to the above slit, so that it substantially into four sections in the width direction in the movable contact part 72 is divided equally. By providing this curved section 77 becomes an expansion and shrinkage of the movable contact part 72 absorbed and reduced to ensure smooth operating characteristics.

The free end of the movable contact part 72 is with two pairs of claw sections 78 . 79 provided, which extend in a direction perpendicular to the surface, which at the movable contacts 76 is attached, and the pairs are arranged symmetrically to one another, with the slot disposed therebetween, wherein the slot between the movable contacts 76 is provided. The claw sections 78 . 79 are arranged such that the claw portion 78 , which is closer to the slot, farther from the movable contact 76 as the claw section 79 located farther away from the slot.

As in the 6 to 9 illustrates the electromagnetic device 30 a first and a second bobbin 31 . 32 , a first and a second coil 33 . 34 , a first and a second iron core 35 . 36 a yoke 37 , and three coil terminals 381 . 382 . 383 on.

As in 9 illustrated is the first bobbin 31 from a hull 311 with a prismatic shape, and a first and a second guide portion 312 . 313 formed at both ends of this hull 311 are provided and have a rectangular plate-like shape. The hull 311 is provided with a through hole (not illustrated) formed on each of the first and second guide portions 312 . 313 is open.

As in 9 illustrated is the second bobbin 32 from a hull 321 with a prismatic shape, and a first and a second guide portion 322 . 323 formed at both ends of this hull 321 are provided and have a rectangular plate-like shape. As in 8th Illustrated is the hull 321 with a through hole 324 provided on each of the first and second guide sections 322 . 323 is open. As in 9 Illustrated is the second guide section 323 with an outwardly projecting portion 325 provided, the three connection holes 326 having.

The first and the second bobbin 31 . 32 the electromagnetic device 30 have the same configuration, but are different in the lengths of the hulls 311 . 321 , That is, the first bobbin 31 points the hull 311 on, longer than the hull 321 of the second bobbin 32 is.

Note that the first bobbin 31 , the first coil 33 , and the first iron core 35 a first electromagnetic block 301 form, and the second bobbin 32 , the second coil 34 , and the second iron core 36 a second electromagnetic block 302 form.

Furthermore, as in 9 illustrates a connector 39 with a substantially rectangular plate-like shape between the first and the second bobbin 31 . 32 intended. Both longitudinal ends of this connector 39 are each with an edge of a short side of the second guide portion 313 of the first bobbin 31 and an edge of a short side of the first guide portion 322 of the second bobbin 32 connected to the first and the second bobbin 31 . 32 to merge or integrate.

At this time, the first and second bobbins 31 . 32 so joined together or integrated that the second guide section 313 of the first bobbin 31 and the first guide section 322 of the second bobbin 32 are substantially parallel to each other and spaced from each other, and such that the hull 311 of the first bobbin and the trunk 321 of the second bobbin 32 arranged in a row.

Note that the second guide section 313 of the first bobbin 31 , the first guide section 322 of the second bobbin 32 , and the connector 39 a recess 90 form. Further, from the surfaces of the connector 39 a surface which the recess 90 forms as an inner surface (the in 6 illustrated surface), and a surface opposite this inner surface is defined as an outer surface (shown in FIG 7 illustrated surface).

As in 7 Illustrated is the connector 39 with an alignment hole 391 on the longitudinal side closer to the second guide portion 313 of the first bobbin 31 provided, and with an alignment hole 392 on the longitudinal side closer to the first guide portion 322 of the second bobbin 32 Mistake. The alignment hole 391 has a substantially T-shape, and is provided such that the protruding part 141 of the lower part 10 is fit in it. Furthermore, the alignment hole 392 a substantially rectangular shape, and is provided such that the projecting part 142 of the lower part 10 is fit in it.

A through hole 393 with a circular opening is in a substantially center of the connector 39 intended. This through hole 393 has a shape into which a rotary shaft section 416 a turning block 41 is customizable. By means of this through hole 393 is the rotary shaft section 416 in the pivot bearing 151 of the lower part 10 used. As in 7 further illustrated is a coil groove 394 at the edge of the long side of the outer surface of the connector 39 intended. In this coil groove 394 becomes a lead wire of the first coil 33 in the direction of the second coil 34 guided. This makes it possible to provide the insulating properties of the lead wire of the first coil 33 passing through the connector 39 is running, improving, and also preventing disconnection of the lead wire.

As in the 6 and 7 Illustrated are the first and the second coil 33 . 34 each around the fuselage 311 of the first bobbin 31 and the hull 321 of the second bobbin 32 wound and arranged so that they have the same central axis. The first and the second coil 33 . 34 are each formed, for example, a set coil and a reset coil. The set coil and the reset coil are wound so that magnetic fields are generated in mutually opposite directions by the supply of currents.

Note that the first and the second coil 33 . 34 the electromagnetic device 30 a different number of turns according to lengths of the hulls 311 . 321 which are adapted such that a magnetic force in each of the first and the second coil 33 . 34 is generated, is essentially the same.

As in 8th illustrated have the first and the second iron core 35 . 36 substantially rectangular plate-shaped shapes having different lengths in the longitudinal direction, and are formed of a magnetic material. A respective longitudinal end of the first and second iron cores 35 . 36 is with a respective registration lead 351 . 361 which protrude laterally, and the respective other longitudinal end thereof is with a respective recessed connecting portion 352 . 362 Mistake. As in 6 further illustrated are the first and second iron cores 35 . 36 each into the through hole (not illustrated) in the fuselage 311 is provided of the first bobbin, and the through hole 324 that in the hull 321 of the second bobbin 32 is provided used.

At this time is an end of the first iron core 35 on the side of the alignment tab 351 opposite the recess 90 exposed, and inserted into the through hole in the first bobbin such that the alignment projection 351 yourself in an alignment hole 391 in the connector 39 located. Furthermore, one end of the second iron core 36 on the side of the alignment tab 361 opposite the recess 90 exposed, and into the through hole 324 inserted in the second bobbin such that the alignment projection 361 in an alignment hole 392 in the connector 39 located. That is, the first and the second iron core 35 . 36 are arranged so as to have the same central axis, and a distance is between the end on the side of the alignment protrusion 351 and the end on the side of the alignment tab 361 provided, which are facing each other.

As in 8th Illustrates the yoke 37 a substantially U-plate-like shape and is of a first planar portion 371 with a rectangular shape and a second and a third planar section 372 . 373 formed at both longitudinal ends of the first planar section 371 are provided.

The first planar section 371 is arranged such that its wide area 376 parallel to wide surfaces 353 . 363 of the first and second iron core 35 . 36 is. Furthermore, the second and third planar sections extend 372 . 373 each from the wide area 376 of the first planar section 371 in a direction orthogonal thereto, and protruding connecting parts 374 . 375 are at the tips of the second and third planar sections 372 . 373 intended. The second planar section 372 is in contact with the first guide section 312 of the first bobbin 31 , and the projecting connector 374 is with the recessed connecting section 352 of the first iron core 35 connected. The third planar section 373 is in contact with the second guide section 323 of the second bobbin 32 , and the projecting connector 375 is with the recessed connecting section 362 of the second iron core 36 connected.

As in 6 Illustrated are the coil terminals 381 . 382 . 383 in the connection holes 326 (in 9 illustrated) in the outwardly projecting portion 325 of the second bobbin 32 fitted. Further, the coil terminals 381 . 382 respectively connected to lead wires of the set coil, and the coil terminals 382 . 383 are each connected to the lead wires of the reset coil.

As in the 3 and 4 Illustrated is the drive unit 40 from the rotary block 41 , a transmission lever 42 , a card 43 , and a support plate section 44 educated.

As in 10 illustrated has the rotary block 41 a body 411 , a pair of plate-shaped movable iron parts 412 . 413 , and a permanent magnet 414 on, and is formed by insertion in a state in which the permanent magnet 414 between the pair of movable iron parts 412 . 413 is held. Further, this body is 411 with a drive arm section 415 , which with the transmission lever 42 is connected, and a pair of rotary shaft sections 416 Mistake. As in 3 illustrated, the drive arm portion extends 415 in a direction substantially orthogonal to the pair of movable iron parts 412 . 413 is, and its end surface is formed arcuate. The rotary shaft sections 416 each have substantially cylindrical shapes, which in the pivot bearing 151 of the lower part 10 can be used, and are arranged so that they have the same center axis.

As in the 3 and 4 illustrates the transmission lever 42 a rectangular plate-shaped form. A longitudinal end of the transmission lever 42 is with a transmission section 421 provided, wherein the end face is formed in an arc shape. Further, the other longitudinal end of the transmission lever 42 with a connection bearing 422 for connection to the rotary block 41 Mistake. As in 4 Illustrates the connection bearing 422 a groove shape into which the tip of the drive arm section 415 of the rotary block 41 can intervene. Further, between the transmission section 421 and the connection warehouse 422 a through hole 423 provided with a circular opening. This through hole 423 is formed such that an opening on the upper surface side (in FIG 3 illustrated) and an opening on the lower surface side (in FIG 4 illustrated) have different diameters, and the opening on the side of the lower surface has a shape such that the rotating shaft 152 of the lower part 10 can be used therein.

As in 3 Illustrates the map 43 three insertion grooves 431 . 432 . 433 on, in which the respective movable contact parts 72 the movable contact connections 24 . 25 . 26 be used. As in 4 is illustrated between the insertion grooves 432 . 433 a transfer warehouse 434 provided, the transfer warehouse 434 has a recessed shape into which the transfer section 421 the transmission lever 42 can be used.

Further, as in 4 illustrates two protruding parts 435 , which from the bottom surface of the base 10 to project on the bottom surface of the map 43 intended. These projecting parts 435 each have an end surface in an arc shape, and are respectively between the insertion grooves 431 . 432 and between the insertion grooves 432 . 433 intended.

As in the 3 and 4 illustrated has the support plate portion 44 in a plan view substantially a T-shape, and is made of a body 441 which has a rectangular shape in a plan view, and arms 442 formed in mutually opposite directions from one end of the body 441 extend out.

A through hole 443 is at one end of the body 441 provided, and a rotary shaft section 444 is provided at the other end. The through hole 443 has a circular opening and has a shape such that the rotary shaft portion 416 of the rotary block 41 can be used therein. The rotary shaft section 444 has a substantially cylindrical shape, which is in the opening on the side of the upper surface of the through hole 423 in the transmission lever 42 can be used.

The poor 442 have projections at their tips 445 for attaching the support plate section 44 on the lower part 10 on. The projections 445 have a substantially cylindrical shape in the recessed portion 153 of the lower part 10 is customizable.

As in 1 Illustrates the cover 50 a rectangular plate-like shape, which is capable of the opening of the lower part 10 to cover. Through holes 51 are at a pair of corner portions of the top surface of the cover 50 intended. The through hole 51 is arranged such that it together with the through hole 18 of the lower part 10 forms a single through hole when the cover 50 on the lower part 10 is mounted. Further, the side surface of the cover 50 with a notch 52 to cause the coil terminals 381 . 382 . 383 protrude, and a groove section 53 provided in which the fixed terminals 21 . 22 . 23 and the movable contact terminals 24 . 25 . 26 be fitted.

Note that at the electromagnetic relay 100 the embodiment of the first and the second electromagnetic block 301 . 302 the electromagnetic device 30 and the drive unit 40 form the electromagnetic drive mechanism.

Next is a method of assembling the electromagnetic relay 100 described with the above configuration.

First, the contact mechanism portion 20 and the card 43 in the lower part 10 assembled.

The contact mechanism section 20 is mounted as follows. First, with the card 43 in the passage sections 16 . 17 arranged, the fixed terminals 21 . 22 . 23 in the respective first to third accommodating sections 11 . 12 . 13 of the lower part 10 assembled. After that, the movable contact terminals 24 . 25 . 26 in the respective first to third accommodating sections 11 . 12 . 13 of the lower part 10 assembled.

As in 2 Illustrated at this time stands out from each of the fixed ports 21 . 22 . 23 and the movable contact terminals 24 . 25 . 26 a part starting from the opening of the lower part 10 up. Meanwhile, the stationary contact 64 and the moving contact 76 arranged so that they face each other and in the X-direction can be brought into contact and separated from each other. That is, the contact mechanisms CM1 to CM3 are arranged in parallel along the X direction, and the movable contact 76 enters the X direction in contact with the stationary contact 64 or is separated from this.

Furthermore, the fixed connections 21 . 22 . 23 and the movable contact terminals 24 . 25 . 26 positioned so that the rooms 81 . 82 and the passage sections 16 . 17 arranged in a row. This allows the card 43 along the passage sections 16 . 17 slides.

Furthermore, the card 43 arranged so that the projecting part 435 in contact with the bottom surface of the base 10 located and the transfer warehouse 434 between the stationary connection 23 and the movable contact terminal 25 located. As in this way the arc surface of the projecting part 435 in contact with the bottom surface of the base 10 It is possible to overcome the resistance associated with the sliding of the card 43 is connected to decrease. Further, the free ends of the movable contact parts 72 in the insertion grooves 431 . 432 . 433 the map 43 inserted, and between the claw sections 78 . 79 held so that they are prevented from coming out. Because the card 43 between the claw sections 78 . 79 of the movable contact part 72 Being held in this way makes it possible to reliably handle all moving contacts 76 the movable contact connections 24 . 25 . 26 to move in the same direction.

Note that the fixed connection 21 by fitting the narrow section 63 in the connection groove 111 of the first receiving section 11 , and fitting the end on the side of the first wide section 61 in the connection holder 112 is positioned. Similarly, the fixed connection becomes 22 by fitting the narrow section 63 in the connection groove 121 of the second receiving section 12 , and fitting the end on the side of the first wide section 61 in the connection holder 122 positioned. Furthermore, the fixed connection 23 by fitting the narrow section 63 in the connection groove 131 of the third receiving section 13 , and fitting the end on the side of the first wide section 61 in the connection holder 132 positioned.

The movable contact connection 24 is done by fitting the narrow section 75 in the connection groove 113 of the first receiving section 11 , and by fitting the fixed end of the first wide section 73 in the connection holder 114 positioned. Similarly, the movable contact terminal becomes 25 by fitting the narrow section 75 in the connection groove 123 of the second receiving section 12 , and fitting the fixed end of the first wide section 73 in the connection holder 124 positioned. The mobile one Contact Termination 26 is done by fitting the narrow section 75 in the connection groove 133 of the third receiving section 13 , and fitting the fixed end of the first wide section 73 in the connection holder 134 positioned.

Next, the electromagnetic device 30 in the lower part 10 assembled. At this time, the electromagnetic device becomes 30 first in the fourth receiving section 14 so absorbed that the projecting part 141 of the fourth receiving section 14 of the lower part 10 in the alignment hole 391 in the electromagnetic device 30 located, and the projecting part 142 of the fourth recording room 14 yourself in the alignment hole 392 in the electromagnetic device 30 located. Then the alignment lead becomes 351 the electromagnetic device 30 in the recessed section 147 of the fourth receiving section 14 fitted, and the alignment tab 361 the electromagnetic device 30 will be in the recessed section 148 of the fourth receiving section 14 fitted. This becomes the electromagnetic device 30 positioned so as to be orthogonal to the contacting / disconnecting direction in which the movable contact 76 in contact with the fixed contact 64 is or is separated from this, and is adjacent to the contact mechanisms CM1 to CM3, and is also positioned such that the central axes of the first and the second coil 33 . 34 parallel to the contacting / disconnecting direction of the movable contact 76 with the / from the fixed contact 64 are. The electromagnetic device 30 is then in the fourth receiving section 14 assembled. When the electromagnetic device 30 in the lower part 10 as in 2 illustrated mounted, lie the coil terminals 381 . 382 . 383 outside the base 10 free.

Note that either the contact mechanism section 20 or the electromagnetic device 30 can be mounted first.

Subsequently, the drive unit 40 with the exception of the card 43 in the lower part 10 assembled.

First, the turning block 41 in the fifth receiving section 15 of the lower part 10 assembled. At this time, the shooting block 41 between the first and the second iron core 35 . 36 in the recess 90 the electromagnetic device 30 recorded, and the rotary shaft section 416 gets into the pivot 151 of the fifth receiving section 15 by means of the through-hole 393 in the connector 39 introduced. This will turn the block 41 positioned so that its axis of rotation is on the central axes of the first and second iron core 35 . 36 located, and the first and the second iron core 35 . 36 between the pair of movable iron parts 412 . 413 are located. The turning block 41 is then in the fifth receiving section 15 assembled.

Next is the transmission lever 42 in the fifth receiving section 15 of the lower part 10 assembled. At this time, the transmission section becomes 421 the transmission lever 42 in the transfer warehouse 434 the map 43 used to the Antriebsarmabschnitt 415 of the rotary block 41 in the connection warehouse 422 the transmission lever 42 to engage, and the through hole 423 in the transmission lever 42 becomes the rotation shaft 152 of the lower part 10 placed. Consequently, the transmission lever 42 positioned.

Subsequently, the support plate section 44 in the fifth receiving section 15 of the lower part 10 assembled. At this time, the other rotary shaft section becomes 416 of the rotary block 41 in the through hole 443 in the support plate section 44 introduced, the rotary shaft section 444 of the support plate section 44 gets into the through hole 423 in the transmission lever 42 introduced, and the lead 445 of the support plate section 44 will with the recessed section 153 of the lower part 10 engaged.

That is, the turning block 41 gets through the pivot bearing 151 of the lower part 10 and the through hole 443 of the support plate section 44 rotatably supported, and the central axis of the rotary shaft portion 416 the turning block 41 forms the axis of rotation of the rotary block 41 , Further, the transmission lever 42 rotatable from the rotary shaft 152 of the lower part 10 and the rotary shaft portion 444 of the support plate section 44 stored, and the central axis of the rotary shaft 152 of the lower part forms the axis of rotation of the transmission lever 42 ,

Finally the cover 50 on the lower part 10 mounted to the assembly of the electromagnetic relay 100 to complete.

Next is the operation of the electromagnetic relay 100 with the above configuration using the 11 and 12 to be discribed.

11 illustrates the electromagnetic relay 100 in an off state. At the electromagnetic relay 100 in the off-state becomes an end of the movable iron part 412 from the first iron core 35 attracted and one end of the movable iron part 413 is from the second iron core 36 attracted by the permanent magnet 414 of the rotary block 41 ,

At this time, the drive arm section is located 415 of the rotary block 41 on the left side of a straight line L1 in the X direction, which is the center of the rotary shaft section 416 of the rotary block 41 with the center of the rotary shaft 152 of the lower part 10 combines. In this way, the transmission lever 42 held such that the transmission section 421 located on the right side of the straight line L1 in the X direction to all moving contacts 76 from the fixed contacts 64 by means of the card 43 to separate.

When each of the set coils of the coils 33 . 34 of the electromagnetic relay 100 in the off state, the in 11 is illustrated, a current is supplied and the set coils are energized, the magnetic force of the permanent magnet 414 of the rotary block 41 lifted, and the other end of the movable iron part 412 is from the second iron core 36 Attracted while the other end of the movable iron part 413 from the first iron core 35 is attracted. This will spin the block 41 counterclockwise and the Antriebsarmabschnitt 415 moves to the right side of the straight line L1 in the X direction.

By this movement of the drive arm section 415 the transmission lever turns 42 clockwise, more precisely, it turns in a direction different from the direction of rotation of the rotary block 41 is. Through this rotation of the transmission lever 42 slides the card 43 in the X direction to the left to all moving contacts 76 in contact with the fixed contacts 64 bring to. Therefore, the electromagnetic relay is switched from the off state to an in 12 illustrated on-state switched. Thereafter, even if the supply of the current to the set coil is terminated, the electromagnetic relay 100 held in the on state.

If in the in 12 On state illustrated a current of each of the reset coils of the coils 33 . 34 of the electromagnetic relay 100 is fed and the reset coils are energized, the magnetic force of the permanent magnet 414 of the rotary block 41 lifted, and the other end of the movable iron part 412 is from the first iron core 35 attracted while one end of the movable iron part 413 from the second iron core 36 is attracted. This will spin the block 41 clockwise and the drive arm section 415 moves to the left side of the straight line L1 in the X direction.

By this movement of the drive arm section 415 the transmission lever turns 42 counterclockwise. Through this rotation of the transmission lever 42 slides the card 43 in the X direction to the right to all moving contacts 76 from the fixed contacts 64 to separate. Therefore, the electromagnetic relay is switched from the on state to the in 11 switched OFF state switched. Thereafter, even if the power supply to the set coil is terminated, the electromagnetic relay 100 held in the off state.

At the electromagnetic relay 100 with the above configuration is the rotation block 41 between the first and the second iron core 35 . 36 arranged, which are arranged so that they are spaced and have the same central axis. This allows the rotation block 41 regardless of the outer shape of the rotary block 41 , the number of turns in the first and second coils 33 . 34 , and the like, thereby facilitating reduction in the size of the electromagnetic drive mechanism.

As the first and the second bobbin 31 . 32 the electromagnetic device 30 by means of the connector 39 Furthermore, it is possible to attach itself from the electromagnetic device 30 with the small size at the electromagnetic relay 100 to facilitate.

Furthermore, the electromagnetic device 30 arranged in a direction orthogonal to the contacting / disconnecting direction in which the movable contact 76 in contact with the fixed contact 64 passes or is separated from it. Therefore, as compared with an electromagnetic relay in which an electromagnetic device is disposed in the contacting / disconnecting direction of the movable contact with / from the stationary contact, the intervals between the fixed terminals 21 . 22 . 23 and the movable contact terminals 24 . 25 . 26 be made big. Accordingly, it is possible, for example, even if the dimension of the outer diameter of the electromagnetic relay 100 is limited due to the reduction in size, a desired isolation distance between the fixed terminals 21 . 22 . 23 and the movable contact terminals 24 . 25 . 26 sure.

Furthermore, by the rotation of the rotary block 41 the moving contacts 76 the movable contact connections 24 . 25 . 26 by means of the transmission lever 42 and the card 43 moved in the same direction. This can be a contacting and separation between the plurality of stationary contacts 64 and moving contacts 76 facilitate. Furthermore, a degree of movement of the card 43 be adjusted by the positions of the rotary shaft 152 of the lower part 10 and the rotary shaft section 444 of the support plate section 44 be set, the rotary shaft 152 the axis of rotation of the transmission lever 42 is. this makes possible For example, a reduction in the power consumption of the electromagnetic relay 100 ,

Furthermore, the drive unit 40 disposed between the adjacent contact mechanisms CM2, CM3. Therefore, the transmission lever 42 with the map 43 connected to their inner position, thereby allowing a distribution of the load on the card 43 at the time of movement of the moving contact 76 is exercised. Consequently, there is no need to use the card 43 amplify, thereby reducing the manufacturing cost of the electromagnetic relay 100 is possible.

Further, the electromagnetic device is 30 arranged such that the contact mechanisms CM1 to CM3 are adjacent to each other, and also arranged such that the central axes of the first and the second coil 33 . 34 parallel to the contacting / disconnecting direction of the movable contact 76 with the / from the fixed contact 64 are. Therefore, it is possible to spare an unused space in the electromagnetic relay 100 reduce and reduce the size of the electromagnetic relay 100 to facilitate.

Other Embodiments

The contact mechanism section 20 is formed of three contact mechanisms CM1 to CM3, but this is not restrictive. The contact mechanism portion may have only a single or more contact mechanisms.

Note that it is the electromagnetic relay 100 With the above configuration, it is possible to remove any one of the contact mechanisms CM1 to CM3 and to use the remaining as a bipolar electromagnetic relay. Therefore, it can be used as an electromagnetic relay for either three phases or a single phase.

The contact mechanisms CM1 to CM3 are each with two stationary contacts 64 and two moving contacts 76 , which have circular contact surfaces with different diameters formed, but this is not limiting. It may simply be provided at least one stationary contact and at least one movable contact with freely selected shapes and dimensions.

The stationary connection section 62 and the movable terminal section 74 are formed in the substantially L-shape, each by the wide sections 62 . 74 be bent, but this is not limiting. The stationary connection section 62 and the movable terminal section 74 may be provided in freely chosen shapes and dimensions according to the design and other of the electromagnetic relay. For example, the wide portion may have a shape that is formed without bending the wide portion (that is, a straight shape), or the wide portion may not necessarily be provided.

The electromagnetic device 30 is with respect to the contact mechanisms CM1 to CM3 in the direction orthogonal to the contacting / disconnecting direction of the movable contact 76 with the / from the fixed contact 64 arranged, but this is not limiting. The electromagnetic device may be arranged in a freely selected manner as long as it is arranged in a direction crossing the contacting / disconnecting direction of the movable contact with / from the stationary contact.

Further, the electromagnetic device is 30 arranged such that the central axes of the first and the second coil 33 . 34 More specifically, the center axes of the first and second iron cores 35 . 36 , parallel to the contacting / disconnecting direction of the movable contact 76 with the / from the fixed contact 64 are, but this is not limiting. If possible, for example, the electromagnetic device may be arranged such that the central axis of the coil is orthogonal to the contacting / disconnecting direction of the movable contact with the stationary contact.

In the electromagnetic device 30 With the above configuration, the first and second electromagnetic blocks are of the first and second bobbins 31 . 32 , the first and the second coil 33 . 34 , and the first and the second iron core 35 . 36 formed, but this is not limiting. The electromagnetic block may simply have at least the iron core and the coil wound around this iron core, and the bobbin and the yoke may be omitted, if possible.

The first and the second bobbin 31 . 32 and the connector 39 can be joined after being made separately, or can be made by one piece molding. Furthermore, the first and the second bobbin 31 . 32 and the connector 39 all made of the same material, or may be formed of different materials.

The first and the second coil 33 . 34 where possible, may be either a single turn coil or a two turn coil.

By adjusting the number of turns of the first and second coils 33 . 34 the magnetic force generated therein can be adjusted. Therefore, it is possible the length of the hulls 311 . 321 the first and the second bobbin 31 . 32 in a freely selectable manner, and to increase a degree of freedom in the design of the electromagnetic drive mechanism.

The first and the second iron core 35 . 36 are not limited to the case where they are arranged to have the same central axis. As in 13 For example, the first and second iron cores can be illustrated 35 . 36 be arranged such that a first central axis L1, which is the central axis of the first iron core 35 is crossing a second center axis L2, which is the central axis of the second iron core 36 is.

As in 14 Illustrated may be the first and the second iron core 35 . 36 Further, be arranged such that the first and the second center axis L1, L2 are parallel to each other and such that a direct distance W3 between the first and the second iron core 35 . 36 is less than a sum of a first length W1 and a second length W2. Note that the first length W1 is a length from the lateral end of the first iron core 35 to the first center axis L1, and the second length W2 is a length from the lateral end of the second iron core 36 to the second center axis L2.

As in 15 further illustrated are the shapes of the first and second iron cores 35 . 36 appropriately according to the design or the like of the electromagnetic relay 100 to be changed. Note that the 13 to 15 to simplify the description, only the first and the second iron core 35 . 36 illustrate.

The connector 39 can be omitted if possible.

The drive unit 40 is arranged between the contact mechanisms CM2, CM3, but this is not limiting. The drive unit can be arranged between the adjacent contact mechanisms and can be arranged, for example, between the contact mechanisms CM1, CM2.

At the electromagnetic relay 100 With the above configuration, the first and second electromagnetic blocks are formed 301 . 302 and the drive unit 40 the electromagnetic drive mechanism, but this is not limiting. The electromagnetic drive mechanism may simply comprise two electromagnetic blocks spaced at a distance having the same central axis and a rotary block disposed between the iron cores of the electromagnetic blocks. Therefore, it is possible to use a freely selected drive mechanism capable of causing the stationary contact and the movable contact to come into contact with each other and separated from each other. For example, the transmission lever may be omitted and the drive arm portion of the rotary block may be directly connected to the card if possible.

The electromagnetic drive mechanism of the present invention is not restrictively applicable to the electromagnetic relay of the above embodiment, but is applicable to an electromagnetic relay having another configuration such as a self-returning electromagnetic relay.

Further, the electromagnetic drive mechanism of the present invention is not restrictively applicable to an electromagnetic relay, but is applicable to another electromagnetic device.

Of course, the ingredients described in the above embodiments may be suitably combined, or may be appropriately selected, substituted or deleted.

INDUSTRIAL APPLICABILITY

The electromagnetic drive mechanism and the electromagnetic relay of the present invention may be used, for example, for a smart meter.

LIST OF REFERENCE NUMBERS

10

lower part

11

first receiving section

12

second receiving section

13

third receiving section

111, 121, 131

terminal groove

112, 122, 132

terminal holder

113, 123, 133

terminal groove

114, 124, 134

terminal holder

14

fourth recording section

141, 142

projecting part

143

first advantage

144

second lead

145

third advantage

146

notch

147, 148

recessed section

15

fifth recording section

151

pivot bearing

152

rotary shaft

153

recessed section

16, 17

Passage section

18

Through Hole

20

Contact mechanism section

21, 22, 23

fixed connection

24, 25, 26

movable contact connection

30

electromagnetic device

301

first electromagnetic block

302

second electromagnetic block

31

first bobbin

311

hull

312

first guide section

313

second guide section

32

second bobbin

321

hull

322

first guide section

323

second guide section

324

Through Hole

325

outwardly projecting section

326

Mounting hole

33

first coil

34

second coil

35

first iron core

351

alignment projection

352

recessed connecting section

353

wide area

36

second iron core

361

alignment projection

362

recessed connecting section

363

wide area

37

yoke

371

first planar section

372

second planar section

373

third planar section

374, 375

projecting connecting part

376

wide area

381, 382, 383

coil terminal

39

joint

391, 392

alignment hole

393

Through Hole

394

coil groove

40

drive unit

41

rotating block

411

body

412, 413

moving iron part

414

permanent magnet

415

drive arm

416

rotary shaft

42

transmission lever

421

transmission section

422

connecting bearing

423

Through Hole

43

map

431, 432, 433

insertion groove

434

transmission bearings

435

projecting part

44

Support plate portion

441

body

442

arm

443

Through Hole

444

rotary shaft

445

head Start

50

cover

51

Through Hole

52

notch

53

groove section

61

first broad section

62

second wide section, fixed connection section

63

narrow section

64

permanent contact

71

body

72

movable contact part

73

first broad section

74

second wide section, movable connection section

75

narrow section

76

moving contact

77

curved section

78

79 claw portion

81,

82 room

90

recess

100

electromagnetic relay

Claims (8)

Electromagnetic drive mechanism, comprising: a first electromagnetic block having a first iron core and a first coil wound around this first iron core; a second electromagnetic block having a second iron core spaced apart from the first iron core and a second coil wound around this second iron core; and a rotary block rotatably disposed between the first and second iron cores and configured to rotate in a different direction depending on a direction of a current supplied to each of the first and second coils. The electromagnetic drive mechanism according to claim 1, wherein when a center axis of the first iron core is defined as a first center axis and a length from an end of the first iron core in a direction orthogonal to the first center axis to the first center axis is defined as a first length. while a center axis of the second iron core is defined as a second center axis and a length of one end of the second iron core in a direction orthogonal to the second center axis to the second center axis is defined as a second length, the first and second iron cores are arranged such in that the first center axis and the second center axis are parallel to each other, and such that a direct distance between the first and second center axes is smaller than a sum of the first length and the second length. The electromagnetic drive mechanism according to claim 1 or 2, wherein the first and second iron cores are arranged to have the same central axis. An electromagnetic drive mechanism according to any one of claims 1 to 3, wherein the first electromagnetic block has a first bobbin formed of a body into which the first iron core is inserted and first and second guide portions provided on both ends of this body while the second electromagnetic block has a second bobbin formed from a hull into which the second iron core is inserted and first and second guide portions provided at both ends of this hull, and the first and second bobbins are integrated by a connector configured to connect the second guide portion of the first bobbin to the first guide portion of the second bobbin. The electromagnetic drive mechanism according to claim 4, wherein the connector has a coil groove in which a lead wire of the first coil or the second coil passes. The electromagnetic drive mechanism according to claim 4 or 5, wherein the rotary block is disposed in a recess formed by the second guide portion of the first bobbin, the first guide portion of the second bobbin, and the connector. The electromagnetic drive mechanism according to any one of claims 1 to 6, wherein the first and second coils have a different number of turns. An electromagnetic relay comprising the electromagnetic drive mechanism according to any one of claims 1 to 7.

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