WO2015098171A1 - 電磁継電器 - Google Patents
電磁継電器 Download PDFInfo
- Publication number
- WO2015098171A1 WO2015098171A1 PCT/JP2014/070777 JP2014070777W WO2015098171A1 WO 2015098171 A1 WO2015098171 A1 WO 2015098171A1 JP 2014070777 W JP2014070777 W JP 2014070777W WO 2015098171 A1 WO2015098171 A1 WO 2015098171A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- movable contact
- contact
- piece
- movable
- electromagnetic relay
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/56—Contact spring sets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts
-
- 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
- H01H50/642—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement intermediate part being generally a slide plate, e.g. a card
Definitions
- the present invention relates to an electromagnetic relay, and more particularly to an electromagnetic relay having a twin contact structure.
- an electromagnetic relay having a twin contact for example, a spring device 33 is rotated by an operating arm 22 that is driven based on switching of the energization direction to the coil device 12, and the spring device 33 is divided into two in the width direction.
- an electromagnetic relay that contacts and separates a pair of contact buttons 37 provided on each of the divided pieces formed on the terminal 31 (see Patent Document 1).
- the twin contact structure of the electromagnetic relay the pair of contact buttons 37 and the pair of contact buttons 34 are formed of the same shape and the same material, and the pair of contact buttons 37 are simultaneously brought into contact with the pair of contact buttons 34.
- an object of the present invention is to provide an electromagnetic relay that has a long life and can always be energized with a stable contact resistance.
- An electromagnetic relay is an operation plate that reciprocates on the basis of a magnetic force generated by energization of an electromagnet unit in order to solve the above-described problems, and rotates a movable contact piece unit composed of a plurality of stacked movable contact pieces.
- the pair of movable contacts provided on the first and second divided pieces formed by dividing the movable contact piece unit into two in the width direction are moved toward and away from the pair of fixed contacts provided on the fixed contact terminals. It is an electromagnetic relay, and one of the pair of movable contacts is brought into contact with one open / close fixed contact first, and then the other conductive contact is contacted with the other fixed contact. This is a configuration to be made.
- the present invention even if an arc is generated between the open / close movable contact and the open / close fixed contact, no arc is generated between the energized movable contact and the energized fixed contact. For this reason, there is little contact wear of the energizing movable contact and the energizing fixed contact, the contact life is long, and an electromagnetic relay having stable energization characteristics can be obtained.
- a slit may be provided, and a bent piece that may be elastically deformed may be formed by bending an area located outside the slit. According to this embodiment, by forming the bent piece, the contact pressure can be adjusted by the spring force of the bent piece.
- the spring constant of the bent piece of the divided piece provided with the movable contact for energization is set larger than the spring constant of the bent piece of the divided piece provided with the movable contact for opening and closing. May be. According to the present embodiment, even when the amount of pressing with respect to the energizing movable contact is smaller than that of the open / close movable contact, the energizing movable contact can obtain the same contact pressure as the open / close movable contact at the final position.
- the height dimension of the open / close fixed contact provided on the fixed contact terminal may be higher than the height dimension of the energizing fixed contact. According to the present embodiment, the same effects as those of the above-described invention can be obtained, and the height dimensions of the open / close fixed contact and the energized fixed contact can be easily adjusted. An electromagnetic relay with no variation is obtained.
- the open / close fixed contact may be provided in a region one step higher than the region in which the energization fixed contact is provided on the surface of the fixed contact terminal.
- an electromagnetic relay that provides the same effects as those of the above-described invention and increases the degree of design freedom can be obtained.
- an energizing movable contact may be provided on the second divided piece on the free end side of the movable contact piece relative to the open / close movable contact provided on the first divided piece. According to this embodiment, an effect equivalent to that of the above-described invention can be obtained, and a large bending moment acts on the movable contact for opening and closing by this principle based on the pressing of the operation plate, and a high contact pressure can be obtained.
- the opening and closing of the operation plate that presses the first and second divided pieces is more open than the region that presses the second divided piece provided with the energizing movable contact.
- the region for pressing the first divided piece provided with the movable contact may be raised by one step. According to this embodiment, an effect equivalent to that of the above-described invention can be obtained, and a desired contact pressure can be ensured and desired operation characteristics can be easily ensured only by providing a step on the pressing surface of the operation plate.
- the first divided piece provided with the movable contact for opening and closing is more than the movable contact for energization provided on the second divided piece.
- the movable contact for opening and closing may be bent so as to protrude toward the fixed contact. According to this embodiment, an effect equivalent to that of the above-described invention can be obtained, and the first and second divided pieces can be adjusted easily by bending them appropriately in the thickness direction, and electromagnetic characteristics with less variation in operating characteristics can be obtained. There is an effect that a relay is obtained.
- FIGS. A and B are a perspective view showing a first embodiment of an electromagnetic relay according to the present invention and a perspective view showing a state where a cover is removed.
- FIGS. A and B are plan views showing before and after operation of the electromagnetic relay shown in FIG. It is a disassembled perspective view of the electromagnetic relay shown in FIG. 1A. It is the disassembled perspective view seen from a different angle of the electromagnetic relay shown in FIG. 1A.
- FIGS. A and B are exploded perspective views of the electromagnet unit shown in FIG.
- FIGS. A and B are exploded perspective views of the movable contact terminal and the movable contact piece unit shown in FIG.
- FIG. A is a perspective view of the first movable contact piece shown in FIG. 6, and FIG.
- FIG. B is a perspective view for explaining a method of assembling the movable contact terminal and the movable contact piece unit.
- FIGS. A, B, C, and D are cross-sectional views for explaining the assembly process of the movable contact terminal and the movable contact piece unit.
- FIG. A is a perspective view showing a modification of the first movable contact piece shown in FIG. 6, and
- FIG. B is a perspective view for explaining a method of assembling the movable contact terminal and the movable contact piece.
- FIGS. A, B, C, and D are cross-sectional views for explaining an assembly process of a modification of the movable contact terminal and the movable contact piece unit.
- FIG. A is a partial front view showing the contact mechanism, and FIGS.
- FIG. A is a partial front view of a contact mechanism showing a second embodiment of an electromagnetic relay according to the present invention
- FIG. B is a perspective view of a fixed contact terminal
- FIG. C is a cross-sectional view taken along the line CC of FIG.
- FIG. A is a partial front view of a contact mechanism showing a third embodiment of an electromagnetic relay according to the present invention
- FIGS. B and C are perspective views of a movable contact terminal, a movable contact piece unit, and a fixed contact terminal
- FIG. FIG. 13D is a sectional view taken along line DD of 13A.
- FIG. A and B are a partial front view and a bottom view of a contact mechanism showing a fourth embodiment of an electromagnetic relay according to the present invention
- FIG. C is a perspective view of the card shown in FIGS. 14A and B
- FIG. FIG. FIGS. A and B are a partial front view and a bottom view of a contact mechanism showing a fifth embodiment of an electromagnetic relay according to the present invention
- FIG. C is a perspective view of the movable contact piece unit shown in FIGS. 15A and 15B
- FIG. FIG. 15D is a sectional view taken along line DD of 15A.
- the electromagnetic relay according to the first embodiment is generally composed of a base 10, an electromagnet unit 20, a fixed contact terminal 30, a movable contact terminal 40 in which a movable contact piece unit 50 is fixed by caulking, a rotation
- the operation body 60, the operation plate 70, the position restriction plate 80 and the cover 90 are configured.
- the base 10 has a flat rectangular box shape. As shown in FIG. 3, a partition wall 11 protrudes from the bottom surface of the base 10 and a fitting step 11a is formed above the inward surface of the partition wall 11. It is. Further, the base 10 is provided with a pair of terminal slits 12 a and 12 b on a side wall forming one internal space partitioned by the partition wall 11. Further, a press-fitting groove 13 for press-fitting and fixing one end of a movable contact terminal 40 to be described later is formed in one of the internal spaces.
- the base 10 is provided with positioning protrusions 14 and positioning ribs 15 (FIG. 2) for positioning an electromagnet unit 20 described later in the other internal space partitioned by the partition wall 11.
- the positioning protrusion 14 and the positioning rib 15 are provided with positioning holes 14a and 15a on the upper end surfaces thereof.
- the base 10 is provided with mounting holes 16 at the diagonal corners, and locking projections 17 are provided on the outer surfaces located on both sides of the mounting hole 16.
- the electromagnet unit 20 has flanges 21 a and 21 b at both ends, and an iron core 23 is inserted into the through hole 21 c of the spool 21 around which the coil 22 is wound.
- the yokes 24 and 25 having a substantially L-shaped cross section are fixed by caulking.
- Three coil terminals 26a, 26b, and 26c are press-fitted into the same edge portion of the flange portion 21b.
- the electromagnet unit 20 is positioned and assembled to the base 10 via the partition wall 11, the positioning protrusion 14 and the positioning rib 15.
- the fixed contact terminal 30 has a fixed contact 31 for opening and closing and a fixed contact 32 for energization fixed to one end portion thereof, and the other end portion is used as a terminal portion 33.
- the open / close fixed contact 31 is made of a metal material having excellent conductivity such as silver.
- the open / close fixed contact 31 has a height dimension protruding from the fixed contact terminal 30 larger than a height dimension protruding from the energizing fixed contact 32 and a larger diameter than the energizing fixed contact 32. is there.
- the thickness of the silver material covering the surface of the open / close fixed contact 31 is greater than the thickness of the silver material covering the surface of the energizing fixed contact 32.
- the movable contact terminal 40 has one end portion of the movable contact piece unit 50 fixed by crimping via a crimping protrusion 41 (FIG. 6B) provided at one end portion thereof, and the other end portion is used as a terminal portion 42.
- the movable contact piece unit 50 includes four first, second, third, and fourth movable contact pieces 51, 52, 53, and 54, and one end thereof is movable.
- the contact terminal 40 is fixed by a crimping protrusion 41.
- the movable contact piece unit 50 has an open / close movable contact 57 and a current-carrying contact at the free ends of the first and second divided pieces 55 and 56 formed by being divided into two in the width direction.
- Each movable contact 58 is fixed by caulking.
- the open / close movable contact 57 is made of a metal material having excellent conductivity, such as silver.
- the opening / closing movable contact 57 has a height dimension protruding from the movable contact piece unit 50 larger than a height dimension protruding the energizing movable contact 58 and a larger diameter than the energizing movable contact 58. It is. In particular, the thickness of the silver material covering the surface of the open / close movable contact 57 is thicker than the thickness of the silver material covering the surface of the energizing movable contact 58. Further, both the first and second divided pieces 55 and 56 are formed with bent portions 55a and 56a bent in the thickness direction in a substantially U shape at the base portions thereof.
- the movable contact piece unit 50 has a notch 50a formed at one end side corner.
- both the open / close fixed contact 31 and the open / close movable contact 57 have a larger protruding height than the energized fixed contact 32 and the energized movable contact 58.
- the present invention is not limited to the above, and at least one of the open / close fixed contact 31 and the open / close movable contact 57 is larger in height than the energized fixed contact 32 and the energized movable contact 58. That's fine.
- the movable contact piece unit 50 may be formed of at least two movable contact pieces.
- the first movable contact piece 51 has one end side divided into two in the width direction to form divided pieces 51a and 51b, and the bases of the divided pieces 51a and 51b have a substantially U-shape. A bent portion 51c is formed.
- the first movable contact piece 51 has a plurality of caulking holes 51d arranged in parallel at the other end edge portion, and a notch 51e formed at the other end corner portion.
- the split pieces 51a and 51b are provided with a semicircular slit 51f around a region where the open / close movable contact 57 and the energizing movable contact 58 are provided in the free ends thereof, and the slit 51f. Bending pieces 51g that can be elastically deformed by bending and raising the uncut region located on the outer side of each are formed.
- the substantially U-shaped slit 51f is provided so as to surround the region where the opening / closing movable contact 57 and the energizing movable contact 58 are provided, and the uncut region located outside the slit 51f.
- the bent piece 51g is elastically deformable by bending. For this reason, the contact pressure can be adjusted depending on how the slits 51f and the bent pieces 51g are formed.
- the split piece 51b provided with the energizing movable contact 58 rather than the bent piece 51g provided on the split piece 51a provided with the open / close movable contact 57.
- the bent piece 51g provided in is short and the spring constant is large. This is because the energizing movable contact 58 ensures the same contact pressure as the open / close movable contact 57 at the operating position even when the pushing amount to the energizing movable contact 58 is smaller than that of the open / close movable contact 57. is there.
- the slit does not necessarily have a semicircular shape, and may be at least one straight slit.
- the second movable contact piece 52 is divided into one end side in the width direction to form divided pieces 52a and 52b, and the bases of the divided pieces 52a and 52b are substantially U-shaped. A bent portion 52c is formed.
- the second movable contact piece 52 has a plurality of caulking holes 52d arranged in parallel at the other end edge portion, and a notch portion 52e formed at the other end corner portion.
- the third movable contact piece 53 is divided into two in the width direction at one end side to form divided pieces 53a and 53b, and the bases of the divided pieces 53a and 53b are formed in a substantially U shape.
- a bent portion 53c is formed.
- the third movable contact piece 53 has a plurality of caulking holes 53d arranged in parallel at the other end edge portion, and a notch 53e formed at the other end corner portion.
- the fourth movable contact piece 54 has one end side divided into two in the width direction to form divided pieces 54a and 54b, and the bases of the divided pieces 54a and 54b have a substantially U-shape.
- a bent portion 54c is formed.
- the fourth movable contact piece 54 has a plurality of caulking holes 54d arranged in parallel at the other end edge portion and a notch portion 54e formed at the other end corner portion, and the remaining other end corner portion.
- the press-fitting projection 54f is formed by extrusion processing.
- a pair of position restricting tongue pieces 54g and 54g for vertically engaging with an engagement arm portion 72 of an operation plate 70, which will be described later, are bent in the same direction at the tip of one of the divided pieces 54a.
- a pair of position restricting tongue pieces 54h and 54h for vertically positioning an engaging arm portion 72 of the operation plate 70 described later are bent in the same direction at the tip of the other divided piece 54b.
- One of the position restricting tongues 54h is formed with position restricting ribs 54i and 54i for restricting the position in the width direction by bending both ends thereof.
- the press-fitting groove 13 provided in the base 10 is inserted into the press-fitting groove 13 as shown in FIG.
- One end of the movable contact terminal 40 is positioned and inserted from above.
- the thickness dimension W1 of the one end portion of the movable contact terminal 40 including the caulking projection 41 is smaller than the width dimension W2 of the press-fitting groove 13 (W1 ⁇ W2). Can be assembled smoothly without forming.
- the press-fitting operation is further facilitated.
- the thickness dimension W3 of the movable contact terminal 40 including the press-fit protrusion 54f is greater than or equal to the width dimension W2 of the press-fit groove 13. (W2 ⁇ W3), a large resistance can be felt.
- the movable contact terminal 40 is pushed in, the lower end edge of the movable contact terminal 40 bites into the cutting margin 13a formed on the inner surface of the press-fit groove 13 and is firmly held. Note that chips generated during press-fitting can be stored in a dust storage groove 13 b formed on the bottom surface of the press-fitting groove 13 and sealed with the movable contact terminal 40.
- the present invention is not limited thereto, and at least one is sufficient. As shown in FIGS. 9 and 10, a total of four press-fitting protrusions 54 f may be formed, two on each side edge of one end of the fourth movable contact piece 54.
- the other parts are almost the same as those in the first embodiment, and the same parts are denoted by the same reference numerals and description thereof is omitted.
- the rotating operation body 60 is formed by integrally molding two first and second movable iron pieces 61, 62 that sandwich a permanent magnet (not shown).
- the moving shaft portions 63 and 64 project on the same axis, and the operating arm portion 65 projects on the side surface.
- the rotating operation body 60 fits the rotating shaft portion 63 into a bearing recess (not shown) provided on the bottom surface of the base 10, while the first and second movable iron pieces 61 and 62 are engaged with each other. Both ends of the electromagnet unit 20 are alternately arranged so as to be able to contact and separate from the magnetic pole portions 24a and 25a (FIG. 2).
- the operation plate 70 is provided with a flat rectangular engagement hole 71 that can be engaged with the operation arm portion 65 of the rotational operation body 60 at one end thereof, while the other end.
- An engaging slit 73 is formed by extending an engaging arm portion 72 in the portion.
- a pair of position restricting projections 74 are provided at the lower end of the engaging arm portion 72. Then, the engagement hole 71 of the operation plate 70 is engaged with the operation arm portion 65 of the rotation operation body 60, while the free end portion of the movable contact piece unit 50 is engaged with the engagement slit 73.
- a pair of position restricting tongues 54g and 54g provided on the split piece 54a of the fourth movable contact piece 54 are engaged with the engaging arm portion 72, and a pair of position restricting tongue pieces provided on the split piece 54b. 54h and 54h are engaged. Further, a position restricting rib 54i formed on the position restricting tongue piece 54h is positioned between the pair of position restricting projections 74, 74 of the engaging arm portion 72, and the movable contact piece unit 50 is displaced in the width direction. Since it does not occur, an electromagnetic relay with good operating characteristics can be obtained.
- the position regulating plate 80 has a planar shape that can be bridged between the positioning protrusion 14 and the positioning rib 15, and the positioning protrusion 14 and Positioning protrusions 81 and 82 that can be fitted into the positioning holes 14a and 15a of the positioning rib 15 are provided. Further, the position restricting plate 80 is provided with a through hole 83 that can be fitted into the rotation shaft portion 64 of the rotation operation body 60 at the center thereof.
- the cover 90 has a planar shape that can cover the opening of the base 10, and is provided with a mounting cylinder portion 91 provided with through holes 91a at opposite corners of the ceiling surface. 91 is protruded. Further, the cover 90 is formed with elastic claw portions 92 at positions corresponding to the locking projections 17 of the base 10 in the outer peripheral edge portion. Further, the cover 90 is formed with a protrusion 93 that fits on the fitting step portion 11 a provided on the partition wall 11 of the base 10 on the ceiling surface.
- the cover 90 is positioned from above on the base 10 in which the above-described internal components are incorporated, and the mounting cylinder portion 91 of the cover 90 is fitted into the mounting hole 16 provided in the base 10, and the cover 90
- the assembly operation is completed by locking the elastic claw portion 92 of the elastic claw portion 92 to the locking projection 17 of the base 10.
- the large-diameter movable contact 57 for opening and closing is arranged on the opening side of the base 10, there are advantages that inspection and adjustment in the assembly process are easy and productivity is high.
- one end portion 61a of the first movable iron piece 61 and the other end portion 62b of the second movable iron piece 62 are attracted to the magnetic pole portions 24a and 25a of the yokes 24 and 25, respectively, by the magnetic force of the permanent magnet.
- the operation plate 70 engaged with the operation arm portion 65 of the rotational operation body 60 is in the return position, and the open / close and energization movable contacts 57 and 58 are the open / close and energization fixed contacts 31. Separated from 32.
- the facing distance between the open / close fixed contact 31 and the open / close movable contact 57 is shorter than the facing distance between the energizing fixed contact 32 and the energizing movable contact 58 (FIG. 11A).
- the rotating operation body 60 rotates against the magnetic force of the permanent magnet. For this reason, after the one end portion 61a of the first movable iron piece 61 and the other end portion 62b of the second movable iron piece 62 are separated from the magnetic pole portions 24a and 25a of the yokes 24 and 25, the other end portion of the first movable iron piece 61 is obtained. 61b and one end portion 62a of the second movable iron piece 62 are attracted to the magnetic pole portions 25a and 24a of the yokes 25 and 24, respectively.
- the operating arm portion 65 of the rotated rotating operation body 60 slides the operation plate 70, and the inner side surface of the engagement slit 73 of the operation plate 70 is the bent pieces 51 g and 51 g of the first movable contact piece 51. Press simultaneously.
- the movable contact 57 for opening and closing and the movable contact 58 for energization rotate around the portion fixed to the movable contact terminal 40 via the crimping protrusion 41.
- the movable contact 58 for energization contacts the fixed contact 32 for energization (FIG. 11D).
- the operation plate 70 pushes the bent piece 51 g of the movable contact piece unit 50.
- the bent piece 51g provided on the split piece 51b provided with the energizing movable contact 58 is shorter than the bent piece 51g provided on the split piece 51a and has a larger spring constant.
- the pushing amount to the energizing movable contact 58 is smaller than that of the opening / closing movable contact 57, the opening / closing movable contact 57 and the energizing movable contact 58 finally become the opening / closing fixed contact 31 and the energizing fixed contact 32.
- Each position is pressed with the same contact pressure. Then, even if the application of voltage to the coil 22 is stopped, the rotating operation body 60 maintains the state by the magnetic force of the permanent magnet (FIG. 3).
- the rotating operation body 60 rotates in the reverse direction, so that the operating arm portion 65 causes the operating plate 70 to move the operating plate 70.
- the engaging arm portion 72 of the operation plate 70 pulls back the free end portion of the movable contact piece unit 50 and returns to the original position (FIG. 2).
- the second embodiment is substantially the same as the first embodiment described above. The difference is that, as shown in FIG. 12, the surface of the fixed contact terminal 30 protrudes and is processed so that it is one step higher and one step lower. 35, and the open / close fixed contact 31 and the energizing fixed contact 32 are fixed by caulking to the step portion 34 and the concave portion 35, respectively.
- the third embodiment is substantially the same as the first embodiment described above. The difference is that, as shown in FIG. 13, the second divided piece 56 rather than the movable contact 57 for opening and closing provided on the first divided piece 55. This is the point that the energizing movable contact 58 provided in is disposed on the free end side of the fourth movable contact piece 54. More specifically, an opening / closing movable contact 57 is provided at the base of the first divided piece 55 of the movable contact piece unit 50, while an energizing movable contact 58 is provided at the free end of the second divided piece 56. is there.
- the open / close fixed contact 31 and the energizing fixed contact 32 are caulked and fixed at positions facing the open / close movable contact 57 and the energizing movable contact 58.
- the first and second divided pieces 55 and 56 can move to the fixed contact terminal 30 side by their own spring force, and the facing distance between the open / close fixed contact 31 and the open / close movable contact 57 is as follows. It is shorter than the facing distance between the energizing fixed contact 32 and the energizing movable contact 58.
- the fourth embodiment is substantially the same as the first embodiment described above, except that the fourth embodiment of the movable contact piece unit 50 among the inner surfaces of the engagement slit 73 of the operation plate 70 is different.
- a pressing protrusion 73 a that is one step higher than the region that contacts the second divided piece 56 of the movable contact piece unit 50 protrudes from the region that contacts the one divided piece 55.
- the operation plate 70 is slid, the first divided piece 55 is pressed first, so that the open / close movable contact 57 contacts the open / close fixed contact 31 first, and then the energization is performed.
- the movable contact 58 contacts the energizing fixed contact 32.
- the fifth embodiment is substantially the same as the first embodiment described above, except that the first divided piece 55 of the movable contact piece unit 50 is fixed more than the second divided piece 56. It is the point which performed the bending process so that it may approach to the contact terminal 30 side.
- the open / close movable contact 57 provided on the first split piece 55 comes into contact with the open / close fixed contact 31 first, and then provided on the second split piece 56.
- the energized movable contact 58 contacts the energized fixed contact 32.
- one folding piece 51g of the first movable contact piece 51 is bent largely toward the movable contact terminal 40 side with respect to the other neighboring folding pieces 51g, whereby the contact timing of the opening / closing movable contact 57 is determined. It may be shifted.
- the electromagnetic relay according to the present invention is not limited to the above-described electromagnetic relay, but may be applied to other electromagnetic relays and electrical devices.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Contacts (AREA)
- Relay Circuits (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Electromagnets (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
そして、前記電磁継電器のツイン接点構造では、一対の接点ボタン37および一対の接点ボタン34を同一形状および同一材料で形成し、一対の前記接点ボタン37を一対の前記接点ボタン34に同時に接触させることを前提にしている。
また、前述の一対の接点ボタン37が一対の接点ボタン34に設計通りに同時に接離するとしても、2組の接点ボタン37,34がアークの発生によって同時に摩耗することにより、接触抵抗が安定しないという問題点がある。
本発明は、前記問題点に鑑み、寿命が長く、常に安定した接触抵抗で通電できる電磁継電器を提供することを課題とする。
本実施形態によれば、折り曲げ片を形成することにより、前記折り曲げ片のバネ力で接圧を調整できる。
本実施形態によれば、通電用可動接点に対する押し込み量が開閉用可動接点よりも少ない場合であっても、前記通電用可動接点は最終位置で開閉用可動接点と同一の接圧が得られる。
本実施形態によれば、前述の発明と同等の効果が得られるとともに、開閉用固定接点および通電用固定接点の高さ寸法の調整が容易であるので、部品精度,組立精度が高く、動作特性にバラツキのない電磁継電器が得られる。
本実施形態によれば、前述の発明と同等の効果が得られるとともに、設計の自由度が広がる電磁継電器が得られる。
本実施形態によれば、前述の発明と同等の効果が得られるとともに、操作板の押圧に基づくてこの原理で大きな曲げモーメントが開閉用可動接点に作用し、高い接点圧が得られる。
本実施形態によれば、前述の発明と同等の効果が得られるとともに、前記操作板の押圧面に段差を設けるだけで、所望の接点圧を確保でき、所望の動作特性を確保しやすい。
本実施形態によれば、前述の発明と同等の効果が得られるとともに、前記第1,第2分割片を板厚方向に適宜、曲げることにより、調整がしやすく、動作特性のバラツキの少ない電磁継電器が得られるという効果がある。
第1実施形態に係る電磁継電器は、図1ないし図8に示すように、大略、ベース10、電磁石ユニット20、固定接点端子30、可動接触片ユニット50をカシメ固定した可動接点端子40、回動操作体60、操作板70、位置規制板80およびカバー90で構成されている。
前記開閉用可動接点57は、例えば、銀のような導電性に優れた金属材料で形成されている。また、前記開閉用可動接点57は、前記可動接触片ユニット50から突出する高さ寸法が前記通電用可動接点58の突出する高さ寸法よりも大きいとともに、前記通電用可動接点58よりも大径である。特に、前記開閉用可動接点57の表面を被覆する銀材の厚さは、前記通電用可動接点58の表面を被覆する銀材の厚さよりも厚い。さらに、前記第1,第2分割片55,56はいずれも、その基部に略U字形状に板厚方向に屈曲した屈曲部55a,56aを形成してある。そして、可動接触片ユニット50は、その一端側角部に切り欠き部50aを形成してある。
また、前記可動接触片ユニット50は少なくとも2枚の可動接触片で形成されていればよいことは勿論である。
特に、図6Bに示すように、前記第1可動接触片51のうち、開閉用可動接点57を設けた分割片51aに設けた折り曲げ片51gよりも、通電用可動接点58を設けた分割片51bに設けた折り曲げ片51gが短く、バネ定数が大きい。これは、通電用可動接点58に対する押し込み量が開閉用可動接点57よりも少ない場合であっても、通電用可動接点58は動作位置で開閉用可動接点57と同一の接圧を確保するためである。
なお、前記スリットは半円形状である必要は必ずしもなく、少なくとも1本の真直なスリットであってもよい。
そして、一方の前記分割片54aの先端部には、後述する操作板70の係合腕部72に上下に係合するための一対の位置規制舌片54g,54gを同一方向に折り曲げてある。
さらに、同様に、他方の分割片54bの先端部には、後述する操作板70の係合腕部72を上下に位置決めするための一対の位置規制舌片54h,54hを同一方向に折り曲げてある。一方の前記位置規制舌片54hには、その両端部を曲げ起こすことにより、巾方向の位置規制を行う位置規制リブ54i,54iを形成してある。
さらに、前記可動接点端子40の一端部を前記圧入溝13に挿入すると、圧入突起54fを含めた可動接点端子40の厚さ寸法W3が前記圧入溝13の巾寸法W2よりも大きいか、等しいので(W2≦W3)、大きな抵抗を感じることができる。さらに、前記可動接点端子40を押し込むと、前記可動接点端子40の下端縁部が圧入溝13の内側面に形成した削り代部13aに食い込み、強固に保持される。なお、圧入の際に生じた切り屑は圧入溝13の底面に形成した屑溜め溝13bに溜めることができ、可動接点端子40で密封される。
他は前述の第1実施形態とほぼ同様であるので、同一部分には同一番号を付して説明を省略する。
そして、前記回動操作体60は、その回動軸部63を前記ベース10の底面に設けた軸受け凹部(図示せず)に嵌合する一方、前記第1,第2可動鉄片61,62の両端を前記電磁石ユニット20の磁極部24a,25aに交互に接離可能に配置する(図2)。
そして、前記操作板70の係合孔71を前記回動操作体60の操作腕部65に係合する一方、前記係合スリット73に前記可動接触片ユニット50の自由端部を係合する。特に、前記係合腕部72に、第4可動接触片54の分割片54aに設けた一対の位置規制舌片54g,54gを係合するとともに、分割片54bに設けた一対の位置規制舌片54h,54hを係合する。
さらに、前記位置規制舌片54hに形成した位置規制リブ54iが、前記係合腕部72の一対の位置規制突起74,74の間に位置決めされ、可動接触片ユニット50が巾方向に位置ズレを生じないので、動作特性の良い電磁継電器が得られる。
そして、前述の内部構成部品を組み込んだ前記ベース10に前記カバー90を上方から位置決めし、前記カバー90の取付筒部91を前記ベース10に設けた取付孔16に嵌合するとともに、前記カバー90の弾性爪部92を前記ベース10の係止突起17に係止することにより、組立作業が完了する。
まず、図2Aに示すように、永久磁石の磁力により、第1可動鉄片61の一端部61aおよび第2可動鉄片62の他端部62bが、ヨーク24,25の磁極部24a,25aにそれぞれ吸着しているとして説明を始める。このとき、前記回動操作体60の操作腕部65に係合している操作板70は復帰位置にあり、開閉用および通電用可動接点57,58が、開閉用および通電用固定接点31,32から開離している。このとき、開閉用固定接点31と開閉用可動接点57との対向距離は、通電用固定接点32と通電用可動接点58との対向距離よりも短い(図11A)。
ついで、前記コイル22に対する電圧の印加を停止しても、永久磁石の磁力によって前記回動操作体60が、その状態を保持する(図3)。
他は前述の第1実施形態と同様であるので、同一部分に同一番号を付して説明を省略する。
より具体的には、可動接触片ユニット50の第1分割片55の基部に開閉用可動接点57を設ける一方、その第2分割片56の自由端部に通電用可動接点58を設けた点である。そして、固定接点端子30は、前記開閉用可動接点57および前記通電用可動接点58に対向する位置に、開閉用固定接点31および通電用固定接点32をカシメ固定してある。
本実施形態によれば、第1,第2分割片55,56は自己のバネ力で固定接点端子30側に移動可能であり、開閉用固定接点31と開閉用可動接点57との対向距離は、通電用固定接点32と通電用可動接点58との対向距離よりも短い。このため、前記可動接触片ユニット50の自由端部を操作板70で押圧して回動させると、開閉用可動接点57が開閉用固定接点31に接触した後、通電用可動接点58が通電用固定接点32に接触する。
他は前述の第1実施形態と同様であるので、同一部分に同一番号を付して説明を省略する。
本実施形態によれば、前記操作板70をスライド移動させると、第1分割片55が先に押圧されるので、開閉用可動接点57が開閉用固定接点31に先に接触した後、通電用可動接点58が通電用固定接点32に接触する。
他は前述の第1実施形態と同様であるので、同一部分に同一番号を付して説明を省略する。
本実施形態によれば、前記操作板70をスライド移動させると、第1分割片55に設けた開閉用可動接点57が開閉用固定接点31に先に接触した後、第2分割片56に設けた通電用可動接点58が通電用固定接点32に接触する。
他は前述の第1実施形態と同様であるので、同一部分に同一番号を付して説明を省略する。
11 仕切り壁
12a,12b 端子スリット
13 圧入溝
13a 削り代部
13b 屑溜め溝
20 電磁石ユニット
21 スプール
22 コイル
23 鉄芯
24 ヨーク
24a 磁極部
25 ヨーク
25a 磁極部
30 固定接点端子
31 開閉用固定接点
32 通電用固定接点
33 端子部
34 段部
35 凹部
40 可動接点端子
41 カシメ突起
42 端子部
50 可動接触片ユニット
50a 切り欠き部
51 第1可動接触片
51f スリット
51g 折り曲げ片
52 第2可動接触片
53 第3可動接触片
54 第4可動接触片
54f 圧入突起
55 第1分割片
55a 屈曲部
56 第2分割片
56a 屈曲部
57 開閉用可動接点
58 通電用可動接点
60 回動操作体
61 第1可動鉄片
62 第2可動鉄片
63 回動軸部
64 回動軸部
65 操作腕部
70 操作板
71 係合孔
72 係合腕部
73 係合スリット
73a 押圧突条
74 位置規制突起
80 位置規制板
90 カバー
Claims (8)
- 電磁石ユニットへの通電によって生じる磁力に基づいて往復移動する操作板で、複数枚の積層した可動接触片からなる可動接触片ユニットを回動し、前記可動接触片ユニットを巾方向に2分割して形成した第1,第2分割片にそれぞれ設けた一対の可動接点を、固定接点端子に設けた一対の固定接点にそれぞれ接離する電磁継電器であって、
一対の前記可動接点のうち、一方の開閉用可動接点を一方の開閉用固定接点に先に接触させた後、他方の通電用可動接点を他方の通電用固定接点に接触させることを特徴とする電磁継電器。 - 前記操作板で直接、押圧される前記可動接触片の分割片の自由端部のうち、前記開閉用可動接点および前記通電用可動接点をそれぞれ設けた領域の周囲にスリットを設けるとともに、前記スリットの外側に位置する領域を曲げ起こして弾性変形可能な折り曲げ片をそれぞれ形成したことを特徴とする請求項1に記載の電磁継電器。
- 前記通電用可動接点を設けた分割片の前記折り曲げ片のバネ定数を、前記開閉用可動接点を設けた前記分割片の折り曲げ片のバネ定数よりも大きくしたことを特徴とする請求項2に記載の電磁継電器。
- 前記固定接点端子に設けた開閉用固定接点の高さ寸法を、前記通電用固定接点の高さ寸法よりも高くしたことを特徴とする請求項1ないし3のいずれか1項に記載の電磁継電器。
- 前記固定接点端子の表面のうち、前記通電用固定接点を設けた領域よりも一段高い領域に、前記開閉用固定接点を設けたことを特徴とする請求項1ないし3のいずれか1項に記載の電磁継電器。
- 前記第1分割片に設けた開閉用可動接点よりも前記可動接触片の自由端側に、通電用可動接点を第2分割片に設けたことを特徴とする請求項1ないし3のいずれか1項に記載の電磁継電器。
- 前記第1,第2分割片を押圧する前記操作板の押圧面のうち、前記通電用可動接点を設けた第2分割片を押圧する領域よりも、前記開閉用可動接点を設けた第1分割片を押圧する領域を一段高くしたことを特徴とする請求項1ないし3のいずれか1項に記載の電磁継電器。
- 前記第1,第2分割片のうち、前記開閉用可動接点を設けた第1分割片を、前記第2分割片に設けた通電用可動接点よりも前記開閉用可動接点が固定接点側に迫り出すように折り曲げたことを特徴とする請求項1ないし3のいずれか1項に記載の電磁継電器。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112015004480-8A BR112015004480A2 (ja) | 2013-12-27 | 2014-08-06 | Electromagnetism relay |
EP14841354.5A EP3089190B1 (en) | 2013-12-27 | 2014-08-06 | Electromagnetic relay |
RU2015107869A RU2015107869A (ru) | 2013-12-27 | 2014-08-06 | Электромагнитное реле |
MX2015003168A MX2015003168A (es) | 2013-12-27 | 2014-08-06 | Relevador electromagnetico. |
CN201480001681.1A CN104969325B (zh) | 2013-12-27 | 2014-08-06 | 电磁继电器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013272856A JP5741679B1 (ja) | 2013-12-27 | 2013-12-27 | 電磁継電器 |
JP2013-272856 | 2013-12-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015098171A1 true WO2015098171A1 (ja) | 2015-07-02 |
Family
ID=53478061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/070777 WO2015098171A1 (ja) | 2013-12-27 | 2014-08-06 | 電磁継電器 |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP3089190B1 (ja) |
JP (1) | JP5741679B1 (ja) |
CN (1) | CN104969325B (ja) |
BR (1) | BR112015004480A2 (ja) |
MX (1) | MX2015003168A (ja) |
RU (1) | RU2015107869A (ja) |
WO (1) | WO2015098171A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017073244A1 (ja) * | 2015-10-29 | 2017-05-04 | オムロン株式会社 | リレー |
WO2017073240A1 (ja) * | 2015-10-29 | 2017-05-04 | オムロン株式会社 | リレー |
US10714291B2 (en) | 2015-12-11 | 2020-07-14 | Omron Corporation | Relay |
US10784055B2 (en) | 2015-10-29 | 2020-09-22 | Omron Corporation | Contact piece unit and relay |
US10964504B2 (en) | 2015-12-11 | 2021-03-30 | Omron Corporation | Relay |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000033247A (ja) * | 1998-07-16 | 2000-02-02 | Daicel Chem Ind Ltd | 固液分離方法 |
JP6132043B1 (ja) * | 2016-02-23 | 2017-05-24 | オムロン株式会社 | 電力開閉装置 |
JP6934636B2 (ja) * | 2017-05-12 | 2021-09-15 | パナソニックIpマネジメント株式会社 | 電磁継電器 |
EP3690917B1 (en) | 2017-10-25 | 2023-12-13 | Xi'an Jiaotong University | High-voltage relay resistant to instantaneous great-current impact |
JP7253906B2 (ja) | 2018-11-30 | 2023-04-07 | 富士通コンポーネント株式会社 | 電磁継電器の端子、及び電磁継電器 |
JP7149824B2 (ja) * | 2018-11-30 | 2022-10-07 | 富士通コンポーネント株式会社 | 電磁継電器 |
JP7183014B2 (ja) | 2018-11-30 | 2022-12-05 | 富士通コンポーネント株式会社 | 電磁継電器、及び電磁継電器の製造方法 |
DE202019103631U1 (de) * | 2019-07-02 | 2019-07-10 | Johnson Electric Germany GmbH & Co. KG | Federbasiertes Kontaktsystem für die Schaltfunktion einer durch elektrischen Strom betriebenen Schalteinrichtung |
DE102019117804B4 (de) * | 2019-07-02 | 2021-08-12 | Johnson Electric Germany GmbH & Co. KG | Schalteinrichtung mit einem elektrischen Kontaktsystem |
JP7166379B2 (ja) * | 2021-03-24 | 2022-11-07 | 松川精密股▲ふん▼有限公司 | 電磁継電器の接点弾性片構造 |
JP7359914B1 (ja) | 2022-07-28 | 2023-10-11 | 大崎電気工業株式会社 | 電子式電力量計の開閉器 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH027840U (ja) * | 1988-06-29 | 1990-01-18 | ||
JP2002008506A (ja) * | 2000-06-23 | 2002-01-11 | Nagano Fujitsu Component Kk | 電磁継電器 |
JP2005166431A (ja) * | 2003-12-02 | 2005-06-23 | Omron Corp | 電磁継電器 |
JP2005183097A (ja) * | 2003-12-17 | 2005-07-07 | Matsushita Electric Works Ltd | 電磁リレー |
US7659800B2 (en) | 2007-08-01 | 2010-02-09 | Philipp Gruner | Electromagnetic relay assembly |
JP2012517092A (ja) * | 2009-02-04 | 2012-07-26 | クロディ エルエルシー | 電磁リレーアセンブリ |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3440380B2 (ja) * | 1993-03-12 | 2003-08-25 | オムロン株式会社 | 電磁継電器 |
JPH07254340A (ja) * | 1994-03-15 | 1995-10-03 | Omron Corp | 電磁継電器 |
DE9404775U1 (de) * | 1994-03-22 | 1994-06-09 | Gruner Kg Relais Fabrik | Kontaktsystem mit Wolfram-Vorlaufkontakt für Schaltrelais für hohe Einschaltstromspitzen |
-
2013
- 2013-12-27 JP JP2013272856A patent/JP5741679B1/ja active Active
-
2014
- 2014-08-06 WO PCT/JP2014/070777 patent/WO2015098171A1/ja active Application Filing
- 2014-08-06 BR BR112015004480-8A patent/BR112015004480A2/ja not_active IP Right Cessation
- 2014-08-06 CN CN201480001681.1A patent/CN104969325B/zh active Active
- 2014-08-06 EP EP14841354.5A patent/EP3089190B1/en active Active
- 2014-08-06 RU RU2015107869A patent/RU2015107869A/ru not_active Application Discontinuation
- 2014-08-06 MX MX2015003168A patent/MX2015003168A/es unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH027840U (ja) * | 1988-06-29 | 1990-01-18 | ||
JP2002008506A (ja) * | 2000-06-23 | 2002-01-11 | Nagano Fujitsu Component Kk | 電磁継電器 |
JP2005166431A (ja) * | 2003-12-02 | 2005-06-23 | Omron Corp | 電磁継電器 |
JP2005183097A (ja) * | 2003-12-17 | 2005-07-07 | Matsushita Electric Works Ltd | 電磁リレー |
US7659800B2 (en) | 2007-08-01 | 2010-02-09 | Philipp Gruner | Electromagnetic relay assembly |
JP2012517092A (ja) * | 2009-02-04 | 2012-07-26 | クロディ エルエルシー | 電磁リレーアセンブリ |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017073244A1 (ja) * | 2015-10-29 | 2017-05-04 | オムロン株式会社 | リレー |
WO2017073240A1 (ja) * | 2015-10-29 | 2017-05-04 | オムロン株式会社 | リレー |
JP2017084659A (ja) * | 2015-10-29 | 2017-05-18 | オムロン株式会社 | リレー |
US20190013172A1 (en) | 2015-10-29 | 2019-01-10 | Omron Corporation | Relay |
US10650996B2 (en) | 2015-10-29 | 2020-05-12 | Omron Corporation | Relay |
US10784055B2 (en) | 2015-10-29 | 2020-09-22 | Omron Corporation | Contact piece unit and relay |
US10811205B2 (en) | 2015-10-29 | 2020-10-20 | Omron Corporation | Relay |
US10714291B2 (en) | 2015-12-11 | 2020-07-14 | Omron Corporation | Relay |
US10964504B2 (en) | 2015-12-11 | 2021-03-30 | Omron Corporation | Relay |
Also Published As
Publication number | Publication date |
---|---|
CN104969325A (zh) | 2015-10-07 |
JP2015127996A (ja) | 2015-07-09 |
JP5741679B1 (ja) | 2015-07-01 |
CN104969325B (zh) | 2017-11-10 |
EP3089190A4 (en) | 2017-11-29 |
EP3089190B1 (en) | 2020-10-07 |
MX2015003168A (es) | 2016-01-11 |
EP3089190A1 (en) | 2016-11-02 |
RU2015107869A (ru) | 2018-02-01 |
BR112015004480A2 (ja) | 2018-04-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5741679B1 (ja) | 電磁継電器 | |
JP5773006B1 (ja) | 電磁継電器 | |
JP5700110B1 (ja) | 接点端子の組付け構造およびこれを備えた電磁継電器 | |
JP4742954B2 (ja) | 電磁継電器 | |
EP1592037B1 (en) | Electromagnetic relay | |
US8222979B2 (en) | Electromagnetic relay | |
JP5720729B2 (ja) | 接点機構部 | |
JP5720840B2 (ja) | 接点機構部およびこれを備えた電磁継電器 | |
JP2015018762A (ja) | 接点機構部およびこれを備えた電磁継電器 | |
JP3976795B2 (ja) | 接点ばねを備えた継電器 | |
JP4952840B1 (ja) | 電磁継電器 | |
JP2005166431A (ja) | 電磁継電器 | |
JP5880233B2 (ja) | 電磁継電器 | |
EP2003671A9 (en) | Electromagnetic relay | |
JP2014154496A (ja) | 電磁継電器 | |
JP3992015B2 (ja) | 電磁リレー | |
JP3826464B2 (ja) | 電磁継電器 | |
JP7459772B2 (ja) | 電磁継電器 | |
JP2000173431A (ja) | 電磁継電器 | |
JPH1196878A (ja) | 電磁リレー | |
JPH08235991A (ja) | 電磁リレー | |
JPH05250974A (ja) | 電磁リレー | |
JPH04126654U (ja) | 電磁継電器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
REEP | Request for entry into the european phase |
Ref document number: 2014841354 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014841354 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: MX/A/2015/003168 Country of ref document: MX |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14841354 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2015107869 Country of ref document: RU Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112015004480 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 112015004480 Country of ref document: BR Kind code of ref document: A2 Effective date: 20150227 |