CN106504948B - Contact opening and closing device - Google Patents
Contact opening and closing device Download PDFInfo
- Publication number
- CN106504948B CN106504948B CN201610669671.6A CN201610669671A CN106504948B CN 106504948 B CN106504948 B CN 106504948B CN 201610669671 A CN201610669671 A CN 201610669671A CN 106504948 B CN106504948 B CN 106504948B
- Authority
- CN
- China
- Prior art keywords
- contact
- retainer
- yoke
- fixed
- movable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
- H01H50/38—Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Contacts (AREA)
Abstract
The present invention provides a kind of contact opening and closing device, high production efficiency, and acting characteristic is not likely to produce deviation.The contact opening and closing device with electromagnet unit (60), retainer (35), movable shaft (43), movable yoke (48), at both ends with the mobile contact piece (49) of moving contact (49a), fixed contact (33a) and fixation magnetic yoke (51).And, in the excitation of the electromagnet unit (60), the movable shaft (43) is mobile to the retainer (35) side along axis direction, it is contacted by means of the moving contact (49a) with the fixed contact (33a) and flows through magnetic field caused by the electric current of the mobile contact piece (49), magnetic loop is formed by the fixed magnetic yoke (51) and the movable yoke (48), the movable yoke (48) is attracted by the fixed magnetic yoke (51).
Description
Technical field
The present invention relates to contact opening and closing devices, in particular to are suitable for power termination relay or electromagnetism shutter etc.
Contact opening and closing device.
Background technique
In the past, as contact opening and closing device, such as shown in Fig. 5 (a) of patent document 1, by heat-resisting materials such as ceramics
The upper surface of the container 61 of composition is provided with a pair of of through hole 61a.Also, be respectively inserted in a pair of through hole 61a and
Soldering has fixing terminal 33,33.In addition, in the upper surface for the container 61 being located between a pair of fixing terminal 33,33
Inside is fixed with magnetic yoke body 63.The magnetic yoke body 63 has the approximately cuboid shape being made of magnetic materials such as mild steel.
Also, when the moving contact 34,34 for being set to movable contact 35 is contacted with fixed contact 32,32 respectively and flowed through
When electric current, magnetic field is generated in the movable contact 35.Therefore, keeping body 81 is attracted by the magnetic yoke body 63, alleviates can
The electromagnetic repulsive force generated between movable contact 34 and fixed contact 32.As a result, it is therefore prevented that the reduction of contact pressure, it is therefore prevented that by
In contact resistance increase and caused by moving contact and fixed contact 32 weld.In addition, moving contact 34 and fixed contact
32 separate with the generation of the electromagnetic repulsive force, and electric arc occurs, to prevent moving contact 34 and fixed contact 32
It welds.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2012-104356 bulletin
Summary of the invention
However, needing for example will by soldering in the inside upper surface of the container 61 of box shape in the contact making device
Magnetic yoke body 63 is fixed.Therefore, fixed operation needs qualification, assembling operation meeting labor intensive, therefore production efficiency is low, manufacture
It is at high cost.
In addition, being easy to produce assembly error in assembling operation above-mentioned, it is difficult to obtain higher positioning accuracy, therefore
The problem of being easy to produce deviation there are acting characteristic.
The present invention is exactly to complete in view of the issue, and it is special that project is to provide a kind of high production efficiency, movement
Property is not likely to produce the contact opening and closing device of deviation.
Contact opening and closing device of the invention to solve the above technical problems, is configured to include
Electromagnet unit；
Retainer is equipped on the electromagnet unit；
Movable shaft, one end are inserted in the retainer, and the other end is inserted in the electromagnet unit, and
And the movable shaft is supported to move back and forth on axis direction；
Mobile contact piece is set to the one end of the movable shaft in the retainer and is accommodated in described
In retainer, and has and be configured at opposite with electromagnet unit side on the axis direction of the movable shaft
Surface on a pair of of moving contact；
Movable yoke is configured at the described on the axis direction of the movable shaft of the mobile contact piece
The back side of electromagnet unit side, and it is assembled in the one end of the movable shaft in the retainer；
A pair of fixed contacts is configured in the retainer, and with the pair of moving contact can contact and
The mode left is opposed；And
Fixed magnetic yoke, between the pair of fixed contact, and to be placed in the both ends of its length direction
Mode in the retainer is supported on the retainer, wherein the length direction of the fixed magnetic yoke along with it is described can
The direction that the axis direction of moving axis intersects and intersects with the length direction of the mobile contact piece,
In the excitation of the electromagnet unit, the movable shaft is along the axis direction from the electromagnet unit court
The direction of the retainer is mobile, contacted by means of the pair of moving contact with the pair of fixed contact and can described in flowing through
Magnetic field caused by the electric current of moving contacting plate forms magnetic loop, the movable magnetic by the fixed magnetic yoke and the movable yoke
Yoke is by the fixed magnetic yoke magnetic attachment.
The effect of invention
According to the present invention, the both ends of fixed magnetic yoke are placed in retainer, so that fixed magnetic yoke is supported in retainer
On, there is no need to be consolidated as the conventional example using soldering etc. to fixed magnetic yoke in the inside upper surface of the container of box shape
It is fixed.Therefore, assembling operation becomes simply, high production efficiency, and manufacturing cost is low.
In addition, only the both ends of fixed magnetic yoke are placed in retainer, therefore it can get and be not likely to produce assembling mistake
Difference, acting characteristic are not likely to produce the contact opening and closing device of deviation.
Detailed description of the invention
Fig. 1 is the overall perspective view for indicating the contact opening and closing device of embodiment of the present invention.
Fig. 2 is the exploded perspective view of contact opening and closing device shown in FIG. 1.
Fig. 3 is the perspective view for indicating to remove the state of shell and outer cover from contact opening and closing device shown in FIG. 1.
Fig. 4 is the perspective view for indicating to remove the state of inner cover from perspective view shown in Fig. 3.
Fig. 5 is the perspective view for indicating to remove the state of made of metal cylindrical flange from perspective view shown in Fig. 4.
Fig. 6 is the solid for indicating to remove the state of ceramic wafer, fixed contact terminals and exhaust pipe from perspective view shown in fig. 5
Figure.
Fig. 7 is the perspective view for indicating to remove the state of lid from perspective view shown in fig. 6.
Fig. 8 is to indicate that perspective view shown in Fig. 7 removes the perspective view of the state of fixed magnetic yoke.
Fig. 9 is the perspective view for indicating to remove the state of position restriction plate from perspective view shown in Fig. 8.
Figure 10 is to face longitudinal section view before the movement of perspective view shown in Fig. 3.
Figure 11 is the side view longitudinal section view before the movement of perspective view shown in Fig. 3.
Figure 12 is to face longitudinal section view after the movement of perspective view shown in Fig. 3.
Figure 13 is the side view longitudinal section view after the movement of perspective view shown in Fig. 3.
Figure 14 is the part amplification stereogram of electromagnet unit shown in Fig. 3.
Figure 15 is the perspective view of retainer shown in Fig. 9.
Figure 16 is the part diagrammatic side-view cross-sectional perspective view of perspective view shown in Fig. 4.
Figure 17 is the partial elevational sectional block diagram of perspective view shown in Fig. 4.
Figure 18 is to face longitudinal section view before indicating the movement of the contact opening and closing device of other embodiments of the invention.
Figure 19 is the side view longitudinal section view of the contact opening and closing device of Figure 18.
Label declaration
10: shell, 11: notch section, 12: stop hole, 20: outer cover, 21: partition wall, 22: terminal hole, 23: chimeric tongue
Piece, 24: locking claw, 30: contact mechanism unit, 31: made of metal cylindrical flange, 32: ceramic wafer, 32a: terminal hole, 32b:
Gas vent, 33: fixed contact terminals, 33a: fixed contact, 34: exhaust pipe, 35: retainer, 35a: bag portion, 35b: central fovea
Portion, 35c: tubular insulation division, 35d: pedestal portion, 35e: seam, 35f: recess portion, 35g: position limitation rib, 36: permanent magnet, 37:
Position restriction plate, 38: electric arc cancellation piece, 39: liner, 40: padded coaming, 41: the 1st magnetic yoke of plate, 41a: riveted holes, 42: cylinder
Shape secured core, 43: movable shaft, 43a: annular flange portion, 44: reset spring, 45: movable core, 46: there is a bottom cylinder, 47: touching
Point spring, 48: movable yoke, 48a: flex portion, 49: mobile contact piece, 49a: moving contact, 50: anti-decylization, 51: fixed magnetic
Yoke, 51a: protrusion, 52: lid, 52a: terminal hole, 52b: through hole, 53: inner cover, 53a: terminal hole, 53b: through hole, 60: electricity
Magnet unit, 61: coil, 62: bobbin, 62a: canister portion, 62b: flange part, 62c: flange part, 62d: seam, 62e: through hole,
63,64: coil terminals, 63a, 64a: wound portion, 63b, 64b: portion of terminal, 62e: through hole, 65: the 2 magnetic yokes, 65a: chimeric
Hole, 65b: arm, 70: linking part, 80: insulating properties ensures to use gap, and 90: contact reliability ensures to use gap.
Specific embodiment
It is applied to closed type electromagnetism to by the contact opening and closing device of embodiments of the present invention according to the attached drawing of Fig. 1 to Figure 17
The case where relay, is illustrated.
The closed type electromagnetic relay of present embodiment is configured at least to have electromagnet unit 60, retainer 35, movable
Axis 43, mobile contact piece 49, movable yoke 48, a pair of fixed contacts 33a and fixed magnetic yoke 51.Specifically, such as Fig. 1 to Fig. 5
It is shown, it assembles outer cover 20 on the housing 10 and forms shell, group has entered contact mechanism unit 30 and electromagnet list in the shell
Member 60.
As shown in Fig. 2, the shell 10 is the resin molded part of the substantially insulating properties of quadrangle box shape, in its opening
Edge is formed with 1 group of notch section 11 on one side.In addition, the shell 10 is provided at the both ends of the opening edge of opposed side
Add up to 2 groups of pairs of stop holes 12.
The outer cover 20 is the quadrangle of the insulating properties of the flat shape with the opening portion that can cover the shell 10
Box shape.Also, on the outer cover 20, distinguish in the two sides for the partition wall 21 for being provided projectingly the insulating properties of face center thereon
It is provided with terminal hole 22,22.In addition, the outer cover 20 is provided projectingly the notch section with the shell 10 in its single side surface
11 chimeric chimeric use tongue pieces 23.Moreover, the outer cover 20 extends and the shell 10 from the opening edge of opposed side
The locking 2 groups of pairs of locking claws 24 of 2 groups of pairs of stop holes 12.
The contact mechanism unit 30 is by retainer 35, tubular secured core 42, movable shaft 43, movable core 45 and movable
Contact chip 49 is constituted, and is assembled in by made of metal cylindrical flange 31, ceramic wafer 32, the 1st magnetic yoke 41 of plate and has bottom cylinder 46
In the sealing space of formation.
As shown in Fig. 2, the made of metal cylindrical flange 31 is big with being formed and carrying out punch process to metal plate
Cause quadrangle barrel shape.Also, the outer peripheral edge portion soldering that the made of metal cylindrical flange 31 is held on it has the ceramic wafer 32.
In addition, the outer peripheral edge portion of the lower end of the made of metal cylindrical flange 31 is become by welding with aftermentioned the 1st magnetic yoke 41 of plate
One.
The ceramic wafer 32 has the planar shaped for the upper end opening edge that can be soldered to the made of metal cylindrical flange 31
Shape.In addition, the ceramic wafer 32 is provided with terminal hole 32a, 32a and gas vent 32b.Also, the ceramic wafer 32 is at the end
The opening edge of sub-aperture 32a and the opening edge portion of the gas vent 32b are respectively formed with metal layer (not shown).Also, as schemed
Shown in 10, the ceramic wafer 32, which is brazed to have at its terminal hole 32a, is fixedly mounted the fixed touching of fixed contact 33a in lower end
Point terminal 33.Therefore, fixed contact 33a is configured in retainer 35 and the side with moving contact 49a can contact and leave
Formula is opposed.Moreover, as shown in figure 11, the ceramic wafer 32 is brazed at its gas vent 32b exhaust pipe 34.
The retainer 35 is equipped on electromagnet unit 60, by the insulating materials shape of the heat resistance with quadrangle box shape
At, and be incorporated in the made of metal cylindrical flange 31 (Figure 10).Also, as shown in figure 15, the retainer 35 is right at its
The two sides lateral surface set is respectively formed with the bag portion 35a for being able to maintain permanent magnet 36.In addition, the retainer 35 is in its bottom surface
Center is provided with the central indentation 35b that the vertical view more slightly lower than bottom surface is square.Tubular insulation division 35c (Figure 10) is from the center
The center of recess portion 35b is provided projectingly downward.In the case where electric arc has occurred, even if in made of metal cylindrical flange 31, plate the 1st
Become high voltage in the path of magnetic yoke 41 and tubular secured core 42, the tubular insulation division 35c makes tubular secured core 42
It insulate between movable shaft 43, so that is both prevented welds integration.Moreover, the retainer 35 is in opposed medial surface
Base portion be respectively arranged with a pair of of pedestal portion 35d.Each pedestal portion 35d is identical by the base portion protrusion of each medial surface from retainer 35
The protrusion of height is constituted.Also, it between each pedestal portion 35d and the central indentation 35b, is provided with aftermentioned for supporting
Position restriction plate 37 seam 35e.In addition, the retainer 35 is arranged between the central indentation 35b and the bag portion 35a
The recess portion 35f that aftermentioned electric arc eliminates piece 38 can be configured by having.Moreover, on each pedestal portion 35d, in mobile contact piece 49
The two sides of length direction be provided projectingly position limitation rib 35g, 35g.Also, as shown in Fig. 2, the retainer 35 across
The padded coaming 40 of the gasket 39 and 1 group quadrangle plate of rectangular plate-like and be placed in aftermentioned the 1st magnetic yoke 41 of plate.
It is constituted as shown in Fig. 2, the position restriction plate 37 is viewed as generally rectangular elastic metal sheet by front, two
Side edge part is cut and forms resilient prong.Also, the position restriction plate 37 is pressed into the seam 35e of the retainer 35
And movable yoke 48 is crimped in retainer 35, and so that pressing force is acted on mobile contact piece 49 via movable yoke 48, from
And limit the idle running of aftermentioned mobile contact piece 49 and movable yoke 48.
As shown in Fig. 2, it is door that the electric arc, which eliminates piece 38 to have the section implementing punch process to thin-sheet metal and being formed,
The shape (U-shaped) of type.Also, the electric arc eliminates piece 38 and is set in the recess portion 35f (Figure 15) of the retainer 35, so as to
The electric arc generated when to contact opening and closing carries out rapid cooling efficiently to be eliminated.
As shown in Fig. 2, the padded coaming 40 is the plate body being made of elastic material.Also, the padded coaming 40
It is sandwiched between the bottom surface of the retainer 35 and the 1st magnetic yoke 41 of plate by 39 covering of covering.
As shown in Fig. 2, the 1st magnetic yoke 41 of plate has the vertical view shape for the opening edge that can be embedded in the shell 10
Shape.In addition, the 1st magnetic yoke 41 of plate is provided with riveted holes 41a in its center.Also, the 1st magnetic yoke 41 of plate is on it
It welds the outer peripheral edge portion of the lower end of the made of metal cylindrical flange 31 and is formed as one in periphery edge.In addition, the plate
The upper end of tubular secured core 42 is fixed in the riveted holes 41a of the 1st magnetic yoke 41 of shape.
Movable shaft 43 inserts one end in retainer 35, and the other end is inserted in electromagnet unit 60, and
And movable shaft 43 is supported to move back and forth along the axis direction of movable shaft 43.Specifically, as shown in Figure 10, institute
State tubular secured core 42 in its through hole 42a across the tubular insulation division 35c of the retainer 35 inserted with movable shaft 43,
And the movable shaft 43 can carry out sliding along its axis direction and move.The top of the movable shaft 43 has annular flange portion 43a.
Also, the lower part of the movable shaft 43 inserts in reset spring 44, and is fixed with movable core 45 in its lower end.
Mobile contact piece 49 is set to the one end of movable shaft 43, and is accommodated in retainer 35, with movable shaft 43
Axis direction intersect (such as vertical) direction both ends (that is, on the axis direction of movable shaft 43 and electromagnet unit
The surface (upper surface) of 60 opposite side) it is respectively provided with a pair of of moving contact 49a, 49a.Specifically, as shown in Figure 10, it is described
The contact spring 47 successively inserted from end thereon, movable yoke 48 and mobile contact piece 49 are utilized collar flange by movable shaft 43
Portion 45a locking, and prevent from falling off using the anti-decylization 50 for being fixed thereon end.
Movable yoke 48 is configured at the projected direction of a pair of of moving contact 49a, 49a for being arranged on mobile contact piece 49
Opposite side is (that is, the back side (following table of 60 side of electromagnet unit on the axis direction of movable shaft 43 of mobile contact piece 49
Face)), and it is installed on the one end of movable shaft 43.Specifically, as shown in figure 11, the movable yoke 48 is by by plate
The both ends of magnetic material are bent 90 degree of standing to same direction in parallel and are formed with flex portion 48a, 48a, and have and cut
Face is the shape (U-shaped) of gate.Also, the following table face contact of the movable yoke 48 and the mobile contact piece 49.
In addition, the mobile contact piece 49 passes through prominent processing setting on the both ends of the length direction on surface on it
There are moving contact 49a, 49a.The fixed contact terminals 33 of described moving contact 49a, 49a and configuration in the retainer 35
Fixed contact 33a, 33a is opposed in a manner of it can contact and leave respectively.
As shown in Figure 10, there is bottom cylinder 46 that the movable core 45 is accommodated near its lower end, there is bottom cylinder 46
Edge airtight joint be open near the lower surface edge for the riveted holes 41a being arranged in the 1st magnetic yoke 41 of plate.Also,
After having aspirated inner air from the exhaust pipe 34, passes through filling gas and seal, to form sealing space.
Fixed magnetic yoke 51 is located at the position separated with a pair of fixed contacts 33a, 33a between a pair of fixed contacts 33a, 33a
It sets, and is supported to for being set up in retainer at the both ends of length direction, the length direction is the axis with movable shaft 43
Heart direction intersects the direction of (such as vertical) and along the direction for intersecting (such as vertical) with the length direction of mobile contact piece 49.
Specifically, being to have at the both ends of length direction with 90 degree of warpage as shown in Fig. 2, it is generally I-shaped shape that fixed magnetic yoke 51, which is overlooked,
Mode protrusion 51a outstanding section be gate (U-shaped) plate magnetic material.In addition, the length of the fixed magnetic yoke 51
The length dimension in degree direction is greater than the length dimension of the length direction of the movable yoke 48.Therefore, the fixed magnetic yoke 51 with
It covers the whole mode of the movable yoke 48 in its longitudinal direction to be overlapped, therefore the leakage of magnetic flux is few, magnetic efficiency is good.And
And the pair of protrusion 51a (Figure 16) to be placed in a pair of of pedestal portion of retainer 35 shown in Fig. 8 by the fixed magnetic yoke 51
Mode on 35d is set up.Also, as shown in figure 17, each end of the fixed magnetic yoke 51 is by the platform described in adjacent pair
Position is limited to by a pair of of position limitation of the two sides configuration of portions 35d, 35d with rib 35g will not be in the length of mobile contact piece 49
Degree moves on direction.
In addition, in the opening and closing of fixed contact 33a and moving contact 49a, due in fixed contact 33a and moving contact
The electric arc generated between 49a flies with the abrasion powder for being contacting and separating and generating of fixed contact 33a and moving contact 49a
It dissipates (hereinafter, being referred to as the powder that disperses).For example, being directly fixed on by soldering etc. the situation on ceramic wafer in fixed magnetic yoke
Under, if dispersing powder accumulation between fixed contact terminals and fixed magnetic yoke, the powder that can be dispersed by this is touched fixed
Short circuit paths are formed between point terminal and fixed magnetic yoke, thus the insulating properties of contact opening and closing device can be substantially reduced.
In the contact opening and closing device, as shown in Figure 10, Figure 12, fixed magnetic yoke 51 between ceramic wafer 32 to form
There is insulating properties to ensure to be kept with the state in gap 80 by the retainer 35 of resin.Even if as a result, fixed contact terminals 33 with
Accumulation has the powder that disperses between fixed magnetic yoke 51, and insulating properties ensures to be filled with gap 80, it is difficult to pass through the powder that disperses
End and form short circuit paths between fixed contact terminals and fixed magnetic yoke, the drop of the insulating properties of contact opening and closing device can be prevented
It is low.
As shown in fig. 6, lid 52 is the insulation of the plan view shape with the opening portion that can be embedded in the retainer 35
The plate body of property.Also, on the lid 52, a pair of end sub-aperture 52a being inserted into for a pair of fixed contacts terminal 33,33,
Through hole 52b is provided between 52a.
Inner cover 53 is the elastomer of insulating properties, and soldering can be covered by, which having, has the made of metal tubular of the ceramic wafer 32 convex
The three-dimensional shape of edge 31.The inner cover 53, which for example can be used, to be easy to absorb the collision between moving contact 49a and fixed contact 33a
The rubber material of sound.Also, the inner cover 53 is provided with the perforation of the perforation of discharge hoses 34 between a pair of end sub-aperture 53a, 53a
Hole 53b, a pair of end sub-aperture 53a, 53a are set to the top surface of inner cover 53 and are fixed the perforation of contact terminal 33 respectively.
As shown in Fig. 2, coil 61 by being wound in the canister portion 62a of the bobbin 62 of insulating properties by the electromagnet unit 60
And it is formed.The axial both ends of cartridge 62a are provided with the flange part 62b of upside and the flange part 62c of downside.Also,
It is respectively pressed into opposite joint 62d, the 62d for the flange part 62b for being set to the upside and is fixed with coil terminals 63,64.Also,
The wire wound of the coil 61 and soldering is in wound portion 63a, 64a of the coil terminals 63,64.In addition, the coil-end
Son 63,64 keeps its portion of terminal 63b, 64b prominent to side.Also, as shown in Figure 10, in the canister portion for being set to the bobbin 62
There is bottom cylinder 46 described in inserting in the through hole 62e of 62a.Then, the lower end for having bottom cylinder 46 is embedded in the 2nd magnetic yoke
In 65 embedded hole 65a.Then, the upper end of two arm 65b, 65b of the 2nd magnetic yoke 65 is engaged respectively and is fixed on institute
State the both ends of the 1st magnetic yoke 41 of plate.As fixing means, such as riveting, indentation or welding can be enumerated etc..The electricity as a result,
Magnet unit 60 is integrally formed with contact mechanism unit 30.
In the following, being illustrated to the movement of the closed type electromagnetic relay with structure above-mentioned.
Firstly, as shown in Figure 10, in the case where not applying voltage to coil 61, relative to tubular secured core 42, benefit
Movable core 45 is exerted a force downwards with the spring force of reset spring 44.Therefore, with the movable shaft of 45 one of the movable core
43 are pushed to lower section relative to tubular secured core 42, and under in retainer 35 mobile contact piece 49 being pulled to
Side.At this point, the annular flange portion 43a of movable shaft 43 is sticked in the bottom surface of the central indentation 35b of retainer 35.Therefore, Yi Duike
Movable contact 49a leaves a pair of fixed contacts 33a, and movable core 45 is not connected to the bottom surface of bottom cylinder 46.
Then, when applying voltage to the coil 61 to carry out excitation, as shown in Figure 12,13,45 tube of movable core
42 magnetic attachment of shape secured core.Therefore, movable shaft 43 overcome along the spring force of the reset spring 44 of axis direction and upwards
Sliding movement.Then, a pair of of moving contact 49a contacts a pair of fixed contacts 33a, and overcomes reset spring 44 and contact spring
47 spring force, so that movable shaft 43 is jacked up.It therefore, can be in the pair of moving contact 49a and the pair of fixed touching
Ensure defined contact force between point 33a.In addition, the close fixed magnetic yoke 51 of movable yoke 48.However, fixed magnetic yoke 51 with can
Static magnetic yokes 48 are not in direct contact with each other, but the contact reliability as defined in keeping ensures to be returned with composition magnetic while gap 90
Road.This is to ensure to ensure contact reliability with gap 90 using the contact reliability.In order to be reliably formed this structure,
Thus as an example, opposed fixation magnetic yoke 51 is configured to be greater than moving contact 49a and consolidate with the opposed distance of movable yoke 48
The contact spacing of fixed contact 33a from.
In addition, the moving contact 49a, which is connected to generated collision sound when the fixed contact 33a, passes through inner cover 53
It is absorbed and mitigates.Therefore, it can get the electromagnetic relay of mute type.
It, also can be at two even if movable yoke 48 is Chong Die with fixed magnetic yoke 51 in contact closure in present embodiment
Ensure that contact reliability ensures with gap 90 and constitutes magnetic loop between component 48,51.Therefore, the magnetic line of force can flow through the movable magnetic
Yoke 48 and the fixed magnetic yoke 51, to form magnetic field.As a result, even if flowing through big electricity in the mobile contact piece 49
Stream, produces electromagnetic repulsive force between fixed contact 33a and moving contact 49a, by means of by the fixed magnetic yoke 51 and institute
The magnetic field for stating the formation of movable yoke 48, can also generate attraction.By means of the attraction, movable yoke 48 is fixed 51 magnetic of magnetic yoke
Attract, the electromagnetic repulsive force is suppressed.Therefore, there is reduction and the contact point of contact force when can prevent contact closure
From, prevent generation and the contact weldering of electric arc the advantages of.
Especially as shown in figure 16, load and be set up in the fixation magnetic yoke 51 in pedestal portion 35d, 35d of the retainer 35
It is fixed by lid 52 and the ceramic wafer 32 for being provided with fixed contact 33a.On the other hand, movable yoke 48 and be provided with can
The following table face contact of the mobile contact piece 49 of movable contact 49a.Therefore, the case where moving contact 49a and fixed contact 33a are contacted
Under, the contact reliability that can be formed with high dimensional accuracy between fixed magnetic yoke 51 and movable yoke 48 ensures with gap 90.Cause
This, has the advantages that the electromagnetic relay that acting characteristic is not likely to produce deviation can be obtained.
Also, when stopping applies voltage to the coil 61 and releases excitation, by means of contact spring 47a and bullet is resetted
The spring force of spring 44, movable core 45 leave from tubular secured core 42.Therefore, movable shaft 43 slides movement to the lower side,
After moving contact 49a leaves from fixed contact 33a, the annular flange portion 43a of movable shaft 43 is sticked in the central fovea of retainer 35
Portion 35b is restored to the state (Figure 10,11) of script.
In present embodiment, as long as the height dimension of the pedestal portion 35d of retainer 35 described in appropriate adjustment, the movable magnetic
The protrusion 51a of the height dimension of the flex portion 48a of yoke 48, the thickness of mobile contact piece 49 and fixed magnetic yoke 51, then can
Forming desired contact reliability ensures with gap 90.Therefore, have the advantages that the freedom degree of design is big.
According to the present embodiment, a pair of of protrusion 51a (Figure 16) of fixed magnetic yoke 51 is placed in retainer 35, so that
Fixed magnetic yoke 51 is kept the bearing of device 35, there is no need to as the conventional example, utilizes in the inside upper surface of the container of box shape
Fixed magnetic yoke is fixed in soldering etc..Therefore, assembling operation is simple, high production efficiency, and manufacturing cost is low.
In addition, only the both ends of fixed magnetic yoke are placed in retainer, therefore it can get and be not likely to produce assembling mistake
Difference, acting characteristic are not likely to produce the contact opening and closing device of deviation.
In addition, according to the present embodiment, a pair of of protrusion 51a of fixed magnetic yoke 51 is placed in a pair of of pedestal portion 35d, therefore solid
The assembling operation for determining magnetic yoke becomes easy.
As other embodiments of the invention, the length dimension on the length direction of the fixed magnetic yoke can be big
Length dimension on the length direction of the movable yoke.
According to the present embodiment, fixed magnetic yoke is overlapped in a manner of covering movable yoke entirety in its longitudinal direction, because
This can get the leakage of magnetic flux less, the high contact opening and closing device of magnetic efficiency.
As another embodiment of the invention, the opposite fixed magnetic yoke it is opposed with the movable yoke away from
From can be greater than the contact spacing of the moving contact and the fixed contact from.
According to the present embodiment, even if in the case where a pair of of moving contact and a pair of fixed contacts contact, movable yoke
It will not be connected in fixed magnetic yoke, therefore contact of a pair of of moving contact with a pair of fixed contacts will not be interfered.Therefore, it can obtain
To the higher contact opening and closing device of contact reliability.
It, can be when the moving contact and the fixed contact contact, in institute as different embodiments of the invention
Stating to be provided between fixed magnetic yoke and the movable yoke connects the fixed magnetic yoke with what the movable yoke was not directly contacted with
Touching reliability ensures to use gap.
According to the present embodiment, even if in the case where a pair of of moving contact and a pair of fixed contacts contact, movable yoke
It will not be connected to fixed magnetic yoke, therefore contact of a pair of of moving contact with a pair of fixed contacts will not be interfered.Therefore, it can be obtained
The high contact opening and closing device of contact reliability.
As new embodiment of the invention, the movable yoke can with the mobile contact on piece setting described in
The single-contact of the opposite side of the projected direction of moving contact.
In addition, according to the present embodiment, movable yoke 48 is contacted with mobile contact piece 49, therefore by fixed magnetic yoke 51 and can
The magnetic resistance for the magnetic loop that static magnetic yokes 48 are constituted becomes smaller.Therefore, magnetic efficiency height can be obtained, electromagnetism can be inhibited to arrange using big magnetic force
The contact opening and closing device of repulsion.
In addition, according to the present embodiment, the impact force of movable shaft 43 absorbed via retainer 35 and by padded coaming 40 and
It mitigates.Even if the state of the especially recovery of movable shaft 43 script, movable core 45 will not be connected to the bottom surface of bottom cylinder 46.
Therefore, the collision sound of movable shaft 43 is kept device 35, padded coaming 40, tubular secured core 42, inner cover 53, electromagnet unit 60
Deng and absorb and mitigate.Have the advantages that the small closed type electromagnetic relay of opening and closing sound can be obtained as a result,.
In addition, position restriction plate 37 according to the present embodiment, as shown in figure 11, movable shaft 43 is moved up and down, from
And mobile contact piece 49 moves up and down.At this point, even if being shaken in the mobile contact piece 49, movable yoke 48, institute
State movable yoke 48 also and can be connected to the position restriction plate 37 in the seam 35e (Figure 15) for being pressed into retainer 35 and by agretope
It sets.Therefore, the mobile contact piece 49, the movable yoke 48 do not contact directly with the retainer of resin 35.As a result,
Toner will not be generated, poor contact will not be caused.The especially described position restriction plate 37 is since metal material is formed, no
It is also easy to produce abrasion powder.
In the contact opening and closing device of the embodiment, fixed magnetic yoke 51 is protected by the retainer 35 being made of insulating materials
It holds, however it is without being limited thereto.Such as shown in Figure 18, Figure 19, it can be linked to ceramic wafer 32 via linking part 70 made of ceramics, come
It is kept fixed magnetic yoke 51.In this case, even if the powder that disperses that is occurred of when opening and closing of fixed contact 33a and moving contact 49a
End is piled up between fixed contact terminals 33 and fixed magnetic yoke 51, and will not fill insulating properties ensures with gap 80, it is difficult to via
It disperses powder and forms short circuit paths between fixed contact terminals 33 and fixed magnetic yoke 51, contact opening and closing device can be prevented
The reduction of insulating properties.
Utilization possibility in industry
Contact opening and closing device of the invention is not limited to use in electromagnetic relay above-mentioned, it is of course possible to be applied to other touchings
Point opening and closing device.
Claims (6)
1. a kind of contact opening and closing device, includes
Electromagnet unit；
Retainer is equipped on the electromagnet unit；
Movable shaft, one end are inserted in the retainer, and the other end is inserted in the electromagnet unit, and should
Movable shaft is supported to move back and forth on axis direction；
Mobile contact piece is set to the one end of the movable shaft in the retainer and is accommodated in the holding
In device, and there is the table for being configured at opposite with electromagnet unit side on the axis direction of the movable shaft
A pair of of moving contact on face；
Movable yoke is configured at the electromagnetism on the axis direction of the movable shaft of the mobile contact piece
The back side of iron cell side, and it is assembled in the one end of the movable shaft in the retainer；
A pair of fixed contacts is configured in the retainer, and with the pair of moving contact can contact and leave
Mode it is opposed；And
Fixed magnetic yoke, between the pair of fixed contact, and it is described to be placed in the both ends of its length direction
Mode in retainer is supported on the retainer, wherein the length direction of the fixed magnetic yoke along with the movable shaft
The axis direction intersect and the direction that intersects with the length direction of the mobile contact piece,
In the excitation of the electromagnet unit, the movable shaft is along the axis direction from the electromagnet unit towards described
The direction of retainer is mobile, is contacted by means of the pair of moving contact with the pair of fixed contact and flows through and described movably connect
Magnetic field caused by the electric current of contact forms magnetic loop, the movable yoke quilt by the fixed magnetic yoke and the movable yoke
The fixed magnetic yoke magnetic attachment,
The holder is standby: being respectively formed at the opposed two sides lateral surface of the retainer and is able to maintain permanent magnet
Bag portion；The central indentation that the vertical view in the bottom surface center and level-one lower than bottom surface that are set to the retainer is square；From described
The tubular insulation division that the center of central indentation is provided projectingly downward；It is separately positioned on the base of the opposed medial surface of the retainer
A pair of of pedestal portion in portion；It is arranged between each pedestal portion and the central indentation and is used for the seam of bearing position restriction plate；
It is arranged between the central indentation and the bag portion and can configure the recess portion that electric arc eliminates piece；And in each pedestal portion
On be provided projectingly position limitation rib in the two sides of the length direction of mobile contact piece.
2. contact opening and closing device according to claim 1, wherein
In the pedestal portion on the opposed medial surface for being respectively arranged at the retainer, the both ends of the fixed magnetic yoke are loaded
Portion.
3. contact opening and closing device according to claim 1 or 2, wherein
Length dimension on the length direction of the fixed magnetic yoke is greater than the length on the length direction of the movable yoke
Size.
4. contact opening and closing device according to claim 1 or 2, wherein
The opposite fixed magnetic yoke is greater than the moving contact and the fixed touching with the opposed distance of the movable yoke
Point contact spacing from.
5. contact opening and closing device according to claim 1 or 2, wherein
When the moving contact and the fixed contact contact, it is provided between the fixed magnetic yoke and the movable yoke
The gap for being not directly contacted with the fixed magnetic yoke and the movable yoke.
6. contact opening and closing device according to claim 1 or 2, wherein
The single side of the projected direction opposite side for the moving contact that the movable yoke is arranged with the mobile contact on piece connects
Touching.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-174869 | 2015-09-04 | ||
| JP2015174869 | 2015-09-04 | ||
| JP2016121171A JP2017050274A (en) | 2015-09-04 | 2016-06-17 | Contact switchgear |
| JP2016-121171 | 2016-06-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106504948A CN106504948A (en) | 2017-03-15 |
| CN106504948B true CN106504948B (en) | 2019-05-03 |
Family
ID=58280082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610669671.6A Active CN106504948B (en) | 2015-09-04 | 2016-08-15 | Contact opening and closing device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2017050274A (en) |
| KR (1) | KR20170028832A (en) |
| CN (1) | CN106504948B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107507737A (en) * | 2017-08-25 | 2017-12-22 | 浙江英洛华新能源科技有限公司 | The relay of efficient arc extinguishing |
| CN107507736A (en) * | 2017-08-25 | 2017-12-22 | 浙江英洛华新能源科技有限公司 | A kind of relay of efficiently arc extinguishing |
| CN107622917A (en) * | 2017-10-13 | 2018-01-23 | 三友联众集团股份有限公司 | A kind of electromagnetic relay |
| JP6801629B2 (en) * | 2017-10-31 | 2020-12-16 | オムロン株式会社 | Electromagnetic relay |
| JP2019083174A (en) * | 2017-10-31 | 2019-05-30 | オムロン株式会社 | Electromagnetic relay |
| CN108400061B (en) * | 2018-05-14 | 2023-09-05 | 苏州超云新能源有限公司 | High-voltage DC on-off device |
| KR102537549B1 (en) * | 2018-08-31 | 2023-05-26 | 엘에스일렉트릭(주) | Direct Current Relay |
| JP7286931B2 (en) | 2018-09-07 | 2023-06-06 | オムロン株式会社 | electromagnetic relay |
| WO2020084829A1 (en) * | 2018-10-25 | 2020-04-30 | 三菱電機株式会社 | Electromagnet, electromagnetic switch, and method of manufacturing electromagnet |
| KR102097642B1 (en) * | 2018-11-13 | 2020-04-06 | 엘에스산전 주식회사 | Direct Current Relay |
| JP7434769B2 (en) | 2019-09-13 | 2024-02-21 | オムロン株式会社 | electromagnetic relay |
| KR102211349B1 (en) * | 2020-04-23 | 2021-02-03 | 주식회사 와이엠텍 | Dc contact device with enhanced short circuit withstand capabiliaty |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8138863B2 (en) * | 2008-06-30 | 2012-03-20 | Omron Corporation | Electromagnetic relay |
| CN102834891A (en) * | 2010-03-25 | 2012-12-19 | 松下电器产业株式会社 | Contact device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5559662B2 (en) | 2010-11-10 | 2014-07-23 | パナソニック株式会社 | Contact device |
| JP6063243B2 (en) * | 2012-04-27 | 2017-01-18 | 日本特殊陶業株式会社 | relay |
| JP6003740B2 (en) * | 2013-03-19 | 2016-10-05 | アンデン株式会社 | Electromagnetic relay |
| JP5821008B2 (en) * | 2014-04-21 | 2015-11-24 | パナソニックＩｐマネジメント株式会社 | Contact device |
-
2016
- 2016-06-17 JP JP2016121171A patent/JP2017050274A/en active Pending
- 2016-08-05 KR KR1020160099852A patent/KR20170028832A/en not_active Application Discontinuation
- 2016-08-15 CN CN201610669671.6A patent/CN106504948B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8138863B2 (en) * | 2008-06-30 | 2012-03-20 | Omron Corporation | Electromagnetic relay |
| CN102834891A (en) * | 2010-03-25 | 2012-12-19 | 松下电器产业株式会社 | Contact device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017050274A (en) | 2017-03-09 |
| CN106504948A (en) | 2017-03-15 |
| KR20170028832A (en) | 2017-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106504948B (en) | Contact opening and closing device | |
| CN102934191B (en) | Contact switching device | |
| US10026577B2 (en) | Contact switching device | |
| KR101483007B1 (en) | Sealed contact device | |
| JP5673878B1 (en) | Sealed contact device | |
| CN109074993A (en) | Contact opening and closing device and the electromagnetic relay for using it | |
| US11915894B2 (en) | Direct current relay | |
| JP6590273B2 (en) | Contact device and electromagnetic relay | |
| US8841979B2 (en) | Relay | |
| CN111599646B (en) | Electromagnetic relay and base body | |
| CN102194611A (en) | Sealed contact device | |
| JP5741740B1 (en) | Sealed contact device and manufacturing method thereof | |
| US10741349B2 (en) | Electromagnetic relay | |
| JP6274229B2 (en) | Contact device and electromagnetic contactor using the same | |
| CN104704597B (en) | Electromagnetism shutter | |
| EP3846193B1 (en) | Direct current relay | |
| US20190122844A1 (en) | Electromagnetic relay | |
| JP2014232669A (en) | Contact device | |
| JP6945171B2 (en) | Electromagnetic relay | |
| CN110651351B (en) | Electromagnetic relay | |
| JP2012199107A (en) | Contact device and electromagnetic switch device using the same | |
| JP6803568B2 (en) | Electromagnet device and electromagnetic relay equipped with the electromagnet device | |
| WO2022230516A1 (en) | Contact device and electromagnetic relay | |
| JP5924398B2 (en) | Sealed contact device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |