CN104718591B - Contact making device and the electromagnetism shutter using the contact making device - Google Patents
Contact making device and the electromagnetism shutter using the contact making device Download PDFInfo
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- CN104718591B CN104718591B CN201380051864.XA CN201380051864A CN104718591B CN 104718591 B CN104718591 B CN 104718591B CN 201380051864 A CN201380051864 A CN 201380051864A CN 104718591 B CN104718591 B CN 104718591B
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- contact
- arc
- movable contact
- fixed
- pair
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/546—Contact arrangements for contactors having bridging contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
-
- 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
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Contacts (AREA)
Abstract
The present invention, which is provided, a kind of easily by the contact making device of the arc extinction produced during open circuit between fixed contact and movable contact and can use the electromagnetism shutter of the contact making device.Contact making device possesses a pair of fixed contacts (111), (112) and the movable contact (130) that can be contacted and discretely be arranged with above-mentioned a pair of fixed contacts in above-mentioned arc-chutes that predetermined space and fixed configurations are kept in arc-chutes (102), in the position opposed with above-mentioned a pair of fixed contacts of above-mentioned movable contact, the ARC commutating plate portion (133) for the electric conductivity for making the arc root from electric arc produced during the open circuit that above-mentioned a pair of fixed contacts leave be commutated from the movable contact is formed.
Description
Technical field
The present invention relates to can contact with keeping predetermined space a pair of fixed contacts configuring and with these fixed contacts
And the contact making device of the movable contact discretely configured and the electromagnetism shutter using the contact making device.
Background technology
As the contact making device of opening and closing current path, in the past, in the electromagnetism shutter such as electromagnetic relay, electromagnetic contactor
In, it is proposed that a variety of extinguishings become for the closure state cut-out electric current for the contact mechanism being in contact from fixed contact and movable contact
Movable contact is set to leave the contact mechanism of electric arc produced during the open circuit of fixed contact into off-state.
For example, it is proposed that following electromagnetism opening and closing device, that is, possess has admittedly respectively with what preset distance was discretely arranged
A pair of fixed contacts of fixed contact, can contact and discretely arrange with this pair of fixed contacts there is movable touch at left and right end
The movable contact of point, the electromagnet apparatus for driving movable contact and the protective case part for storing movable contact and fixed contact,
The outside of protective case part abreast configures the permanent magnet of arc extinction with movable contact (for example, referring to patent document 1).
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2006-19148 publications
The content of the invention
Technical problem
However, in the past case described in above-mentioned patent document 1, although drawn electric arc by the magnetic force of permanent magnet
It is long, it is easy to carry out arc extinguishing, but the on-state contacted from movable contact with fixed contact makes the failure of current that movable contact is separated
When electric arc produced when being open circuit arc root by the magnetic force of permanent magnet on the moving contact of movable contact it is empty to arc extinguishing
Between side move.The arc root for depositing electric arc after movement is trapped in the corner of movable contact, therefore exists due to being produced from electric arc arc root
Raw metal vapors and the unsolved problem for consuming movable contact.
Therefore, currently invention addresses the unsolved problem of above-mentioned past case, it is therefore intended that provide one kind can suppress because
The contact making device of the consumption of movable contact and used caused by the electric arc produced when breaking between fixed contact and movable contact
The electromagnetism shutter of the contact making device.
Technical scheme
To achieve these goals, it is of the invention contact making device in a first aspect, possessing：A pair of fixed contacts, keep pre-
Determine compartment of terrain to be fixedly arranged in arc-chutes；Movable contact, can contact with above-mentioned a pair of fixed contacts and discretely be disposed in
State in arc-chutes.Also, either one in above-mentioned movable contact and above-mentioned a pair of fixed contacts, the electric arc for forming electric conductivity is changed
To plate portion, the ARC commutating plate portion makes the arc root of electric arc produced during open circuit commutate, wherein, short circuit refers to above-mentioned movable tactile
Head is separated with above-mentioned a pair of fixed contacts.
According to this in a first aspect, by formed in movable contact and a pair of fixed contacts either one with the opposing party couple
The ARC commutating plate portion of the electric conductivity for the position put, can make movable contact from a pair of fixed contacts leave when produced electric arc
Arc root commutated from movable contact to ARC commutating plate portion, can suppress movable contact and a pair of fixed contacts is provided with electric arc
The consumption of commutation portion side.
In addition, the second aspect of contact making device of the present invention is, above-mentioned ARC commutating plate portion by melting temperature than it is above-mentioned can
The high metallic plate of moving contact is formed.
According to the second aspect, because the melting temperature of ARC commutating plate portion is higher than the melting temperature of movable contact, so
By making the arc root of electric arc commutate to ARC commutating plate portion, it can bear to destroy as caused by electric arc in ARC commutating plate portion, from
And the consumption of movable contact can be suppressed.
In addition, the third aspect of the contact making device of the present invention is that above-mentioned ARC commutating portion is by mounting plate portion and a pair of electric arcs
The side plate that commutates is constituted, and the mounting plate portion is contacted with same above-mentioned a pair of fixed contacts opposite side of above-mentioned movable contact, and
And have in the position opposed with above-mentioned a pair of fixed contacts along the direction bending left from a pair of fixed contacts and the folding of extension
Bent extension, the pair of ARC commutating side plate is from the warpage extension of the mounting plate portion with the side with above-mentioned movable contact
The mode of edge contact extends.
According to the third aspect, by mounting plate portion being installed on into movable contact and a pair of fixed contact opposite side
Surface, can be easily installed at movable contact by ARC commutating plate portion.Moreover, can by a pair of ARC commutating side plate coverings
The side of moving contact, can further reduce the consumption of movable contact.
In addition, the fourth aspect of the contact making device of the present invention is, above-mentioned ARC commutating plate portion is by mounting plate portion and a pair of electricity
Arc commutation side plate is constituted, the surface of the mounting plate portion and same above-mentioned a pair of fixed contacts opposite side of above-mentioned movable contact
Contact, the pair of ARC commutating side plate formation is the two of the position opposed with above-mentioned a pair of fixed contacts of the mounting plate portion
Lateral edges and extend along the direction left from above-mentioned a pair of fixed contacts.
According to the fourth aspect, ARC commutating plate portion, which has from movable contact to a pair of fixed contact opposite side, to extend
A pair of ARC commutating side plates, it is thus possible to make the arc root of electric arc in this pair of ARC commutating side plates to from movable contact
The direction commutation left.
In addition, the 5th aspect of the contact making device of the present invention is, above-mentioned a pair of fixed contacts by upper plate portion, middle plate portion and
Lower board unit is formed as C-shaped, and above-mentioned movable contact can contact with the lower board unit and discretely be configured at above-mentioned upper plate portion and lower plate
Between portion, ARC commutating plate is set on the surface of the above-mentioned movable contact opposite side of the use of the lower board unit of above-mentioned a pair of fixed contacts
Portion.
According to the 5th aspect, because ARC commutating plate portion is formed at one of the same movable contact of a pair of fixed contacts conversely
Side, thus can make in ARC commutating plate portion the arc root of electric arc towards from a pair of fixed contacts to movable contact opposite side from
The direction commutation opened.
In addition, the first aspect of the electromagnetism opening and closing device of the present invention is that possess foregoing first aspect to the 5th aspect
Contact making device, the movable core of above-mentioned movable contact and electromagnet apparatus links, above-mentioned a pair of fixed contacts and external connection terminal
Son connection.
According to this composition, using the teaching of the invention it is possible to provide a kind of to be put out by being simply configured to reliably electric arc produced during by open circuit
Go out and improve the contact making device of cut-out performance and used the electromagnetism shutter of the contact making device.
Beneficial effect
According to the present invention, in movable contact and a pair of fixed contacts during the open circuit that movable contact leaves from a pair of fixed contacts
Between when producing electric arc, make the arc root of the electric arc of a side side in movable contact and a pair of fixed contacts fast to ARC commutating plate portion
Quick change is to can suppress the consumption of the side in movable contact and a pair of fixed contacts.Therefore, it is possible to extend the longevity of movable contact
Life.
In addition, by the way that the contact making device with the effect above is applied into electromagnetism shutter, using the teaching of the invention it is possible to provide one kind passes through letter
The easy consumption for being configured to suppress the movable contact caused by the electric arc produced by when open circuit and prolong long-life electromagnetism and connect
The electromagnetism shutter such as tentaculum, electromagnetic relay.
Brief description of the drawings
Fig. 1 is the sectional view for representing to apply the present invention to the first embodiment in the case of electromagnetic contactor.
Fig. 2 is the stereogram for the ARC commutating plate portion for representing first embodiment.
Fig. 3 is the sectional view for representing the electric arc elongation situation obtained from the ARC commutating plate portion of first embodiment.
Fig. 4 is the sectional view for representing to apply the present invention to the second embodiment in the case of electromagnetic contactor.
Fig. 5 is the stereogram for the ARC commutating plate portion for representing second embodiment.
Fig. 6 is the sectional view for representing the electric arc elongation situation obtained from the ARC commutating plate portion of second embodiment.
Fig. 7 is the sectional view for representing to apply the present invention to the 3rd embodiment in the case of electromagnetic contactor.
Fig. 8 is the sectional view for representing the electric arc elongation situation obtained from the ARC commutating plate portion of the 3rd embodiment.
Fig. 9 is the stereogram for the ARC commutating plate portion for representing the 3rd embodiment.
Figure 10 is the stereogram of the ARC commutating plate portion for the variation for representing the 3rd embodiment.
Figure 11 is the stereogram of the ARC commutating plate portion for the other variations for representing the 3rd embodiment.
Symbol description
10 ... electromagnetic contactors,
100 ... contact making devices,
101 ... contact mechanisms,
Shell (arc-chutes) is stored in 102 ... contacts,
103 ... barrels,
104 ... metal square tube bodies,
111st, 112 ... fixed contacts,
114 ... supporting conductor portions,
115 ... contact portions,
130 ... movable contacts, 130a ... contact portions, 130b, 130c ... corner,
131 ... connection shafts,
133 ... ARC commutating plate portions,
134 ... mounting plate portion,
135 ... central plate portions, 135a ... through holes,
136a, 136b ... joggling part,
137a, 137b ... extension,
138a, 138b ... ARC commutating side plate,
139 ... contact springs,
145th, 146 ... arc extinction spaces,
200 ... electromagnet units,
201 ... yokes,
203 ... cylindric auxiliary yokes,
204 ... reels,
208 ... magnet exciting coils,
210 ... top yokes,
211 ... fixed iron cores,
212 ... movable cores,
214 ... return springs,
301 ... mounting plate portion,
302a, 302b ... ARC commutating side plate,
400 ... contact making devices,
401 ... contact mechanisms,
Shell (arc-chutes) is stored in 402 ... contacts,
403 ... flange parts,
404 ... metal square tube bodies,
411st, 412 ... fixed contacts,
414 ... supporting conductor portions,
415 ... contact portions,
430 ... movable contacts, 430a ... contact portions,
431 ... connection shafts,
439 ... contact springs,
445,446 ... arc extinction spaces,
450 ... ARC commutating plate portions,
500 ... electromagnet units,
501 ... yokes,
503 ... cylindric auxiliary yokes,
504 ... reels,
508 ... magnet exciting coils,
510 ... top yokes,
511 ... fixed iron cores,
512 ... movable cores,
514 ... return springs
Embodiment
Hereinafter, based on brief description of the drawings embodiments of the present invention.
Fig. 1 is the section view of the first embodiment in the case that the contact making device of the present invention is applied into electromagnetic contactor
Figure, Fig. 2 is the stereogram for the ARC commutating plate portion for representing first embodiment.In the Fig. 1 and Fig. 2,10 be electromagnetic contactor,
The electromagnetic contactor 10 is by being configured with the contact making device 100 of contact mechanism and driving the electromagnet unit 200 of the contact making device 100
Constitute.
As depicted in figs. 1 and 2, there is contact making device 100 contact as arc-chutes for storing contact mechanism 101 to store shell
102.Store shell 102 and connect by the barrel 103 with insulating properties and lower ending opening and with the lower surface of the barrel 103 in the contact
The metal square tube body 104 of conjunction is constituted.Metal square tube body 104 is with its flange part 105 and the top magnetic of electromagnet unit 200 described later
The sealing engagement of yoke 210 is fixed.
In addition, forming central portion insertion a pair of fixations described later with keeping predetermined space in the top plate 103a of barrel 103
The through hole 106 and 107 of contact 111 and 112.
As shown in figure 1, contact mechanism 101 possesses the He of through hole 106 for being inserted into the top plate 103a that shell 102 is stored in contact
107 and fixed a pair of fixed contacts 111 and 112.These fixed contacts 111 and 112 possess respectively is inserted into top plate 103a's
Through hole 106 and 107 have in upper end flange part 113 prominent laterally contact supporting plate conductor portion 114 and with the contact
Supporting conductor portion 114 links and is disposed in top plate 103a lower face side and flat contact portion 115 is formd in medial extremity
Contact conductor portion 116.
Also, such as copper is arranged in mode opposed with the contact conductor portion 116 of fixed contact 111 and 112 from below
Movable contact 130.The movable contact 130 is fixed in the connection shaft of the movable core 212 of electromagnet unit 200 described later
131 supportings.As shown in figure 1, the movable contact 130 is formed with the through hole 132 inserted for connection shaft 131 in central portion.
For connection shaft 131, utilize what is be made up of the c-type back-up ring or E type back-up rings protruded laterally in its upper end
Back-up ring 131a prevents retainer ring 131b from dislocating, and movable contact 130 is configured with the downside of retainer ring 131b.
Changed in addition, being configured with electric arc in the lower surface of movable contact 130 and a pair of fixed contacts 111,112 opposite side
To plate portion 133.The ARC commutating plate portion 133 by the melting temperature electric conductivity higher than movable contact 130 metal material such as iron,
The formation such as stainless steel.
As shown in Fig. 2 the ARC commutating plate portion 133 has and movable contact 130 and a pair of fixed contacts 111 and 112
The mounting plate portion 134 of the lower surface contact of opposite side.The mounting plate portion 134 is inserted by being formd in central portion for connection shaft 131
Through hole 135a central plate portion 135, be formed at the central plate portion 135 left and right ends portion bending downwards joggling part
136a, 136b, the extension 137a abreast extended laterally from the joggling part 136a, 136b lower end and central plate portion 135,
137b is constituted.Also, the front and back sides of extension 137a, 137b in left and right ends are integrally formed to be extended upward respectively, and
A pair of ARC commutating the side plate 138as and 138b chimeric with the front and rear sides face of movable contact 130.
Then, ARC commutating plate portion 133 is installed on movable contact 130.The installation of the ARC commutating plate portion 133 can pass through
Following manner is carried out, i.e. make mounting plate portion 134 and movable contact 130 with a pair of opposite side of fixed contact 111 and 112
Lower surface is contacted, and makes the through hole 132 of movable contact 130 and the through hole 135a alignment of mounting plate portion 134, then makes electric arc
Commutation side plate 138a, 138b is chimeric with the front and back sides of movable contact 130.
Thereafter, match somebody with somebody in flange part 133cs of the ring 133b positioned at the downside of predetermined distance that be relatively fixed of connection shaft 131
The contact spring 139 being wound around connection shaft 131 is equipped with, in this condition, to movable contact 130 and ARC commutating plate portion
Insertion connection shaft 131, is then fixed retainer ring 133b with back-up ring 131a in 133 through hole 132 and 135a.Thus, movably
The state that contact 130 and ARC commutating plate portion 133 are pressed against retainer ring 133b with touched spring 139 is configured at connection shaft 131.
The movable contact 130 is when being off, the contact portion 130a at two ends and touching for fixed contact 111 and 112
The flat contact portion 115 of the lower board unit of point conductor portion 116 is separated in the way of keeping predetermined space.In addition, movable contact
130 contact portions for being set on on-position make two ends by the predetermined contact of contact spring 139 are touched with fixed
The flat contact portion 115 of the lower end of first 111 and 112 contact conductor portion 116 is contacted.
Also, it is opposed with movable contact 130 in the barrel 103 and fixed contact 111,112 that shell 102 is stored in contact
Portion is from the opposed outer peripheral face of fore-and-aft direction, as shown in figure 3, being equipped with to movable contact 130 from a pair of Hes of fixed contact 111
A pair of arc extinction permanent magnets 143 and 144 that 112 electric arcs produced when leaving are elongated.
This pair of arc extinctions are geomagnetic into the magnetic pole strength mutually opposing in thickness direction of permanent magnet 143 and 144
Identical polar such as N poles.Also, the opposed locations of a pair of the fixed contacts 111,112 and movable contact 130 in barrel 103
Fore-and-aft direction two outsides, as shown in figure 3, being formed with arc extinction space 145 and 146.
Therefore, as shown in figure 3, movable contact 130 from a pair of fixed contacts 111 and 112 leave when produced electric arc 150
By from magnetic flux of the arc extinction with permanent magnet 143 and 144, being put out to the electric arc of the side of arc extinction permanent magnet 143
The layback of space 145 that goes out is long.
Now, on movable contact 130, chimeric with the rear ends of a pair of opposed positions of fixed contact 111,112
There are ARC commutating the side plate 138a and 138b of ARC commutating plate portion 133, thus movable contact 130 is just from a pair of fixed contacts
111st, 112 leave after, the arc root of electric arc is located at the corner 130b exposed on the rear ends of movable contact 130.
However, ensuing moment, changes to the ARC commutating side plate 138a of ARC commutating plate portion 133 top side
To, the arc root of electric arc 150 is elongated due to the magnetic flux of arc extinction permanent magnet 143 and 144, thus to ARC commutating side
Plate portion 138a and 138b lower end side movement, finally, as shown in figure 3, reaching ARC commutating side plate 138a and 138b and extension
Portion 137a and 137b linking part.
As shown in figure 1, electromagnet unit 200 has the yoke 201 that U-shaped is viewed as from side, in the yoke 201
The central portion of base plate 202 is fixed with cylindric auxiliary yoke 203.The outside for aiding in yoke 203 in the cylindrical shape is configured with reel
204。
The reel 204 by inserted for cylindric auxiliary yoke 203 central cylinder portion 205, from the central cylinder portion 205
The bottom lower flange portion 206 prominent to radial outside, from the upper end of central cylindrical portion 205 slightly under lateral radial outside protrude
Upper flange part 207 constitute.Also, in the storage being made up of central cylinder portion 205, lower flange portion 206 and upper flange part 207
Space is wound with magnet exciting coil 208.
Moreover, being fixed with top yoke 210 between the upper end as openend of yoke 201.The top yoke 210 exists
Central portion is formed with the through hole 210a of chimeric supporting and fixing iron core 211.
In addition, being configured with fixed iron core 211 in the top side in the central cylinder portion 205 of reel 204.Fixed with this
211 opposed bottom sides unshakable in one's determination are configured with movable core 212 in the way of predetermined distance, the movable core 212 with
Return spring 214 is arranged between fixed iron core 211.In addition, being fixed with the link of supporting movable contact 130 in movable core 212
Axle 131.
Moreover, fixed iron core 211 and movable core 212 are made up of nonmagnetic material and are formed the cover 230 of bottomed tube
Covering, in the openend of the cover 230, to radial outside extend formed by flange part 231 and the lower surface of top yoke 210 it is close
Sealing-in is closed.Thus, shell 102 is stored by contact and cover 230 is formed contact mechanism 101 and fixed iron core 211, movable core 212
It is configured at the sealing container of closing space.Moreover, enclosing hydrogen being stored by contact in the sealing container that shell 102 and cover 230 are formed
Gas, nitrogen, the mixed gas of hydrogen and nitrogen, air, SF6, the gas such as He.
Next, the action to above-mentioned embodiment is illustrated.
Currently, setting fixed contact 111 is for example connected with supplying the power supply source of high current, and fixed contact 112 is with bearing
Carry connection.
In this condition, the magnet exciting coil 208 in setting electromagnet unit 200 is non-excited state, in electromagnet unit
In the off-state for not producing the excitation power for declining movable core 212 in 200.Under the off-state, by restoring bullet
Spring 214 applies to movable core 212 makes the pressure that it leaves downward from fixed iron core 211.
Therefore, the contact portion of the movable contact 130 of the contact mechanism 101 linked via connection shaft 131 and movable core 212
130a is separated with preset distance with the flat contact portion 115 of fixed contact 111 and 112 and positioned at lower section.Therefore, fixed contact
Current path between 111 and 112 is in dissengaged positions, and contact mechanism 101 is off state.
Since the off-state, in order to load supply electric power, excite the magnet exciting coil 208 of electromagnet unit 200,
Electromagnet unit 200 produces excitation power, and movable core 212 is attracted with fixed iron core 211, thus overcomes movable core 212 multiple
The active force of former spring 214 and rise.The upper surface for rising through movable core 212 of the movable core 212 and fixed iron core
211 lower surface is abutted and stopped.
So, by rising movable core 212, the movable contact linked via connection shaft 131 and movable core 212
130 also rise, and its contact portion 130a passes through the contact of contact spring 139 and the flat contact of fixed contact 111 and 112
Portion 115 is contacted.
Therefore, the high current as external power supply source is touched by fixed contact 111, movable contact 130 and fixation
First 112 be fed into load close pole state.
Since the contact mechanism 101 close pole state, cut off to load supply electric current in the case of, stop electromagnet list
The excitation of the magnet exciting coil 208 of member 200.
Accordingly, because the excitation power for being moved upward movable core 212 in electromagnet unit 200 disappears, so can
Dynamic iron core 212 declines because of the active force of return spring 214.
Because the movable core 212 declines, so that the movable contact 130 linked via connection shaft 131 declines.With this phase
Ying Di, during giving contact with contact spring 139, movable contact 130 is contacted with fixed contact 111 and 112.Thereafter,
At the time of the contact of contact spring 139 disappears, separated downwards from fixed contact 111 and 112 as movable contact 130
Off state.
During as the off state, in the flat contact portion 115 of fixed contact 111 and 112 and touching for movable contact 130
Electric arc is produced between point portion 130a, the "on" position of intermittent current by the electric arc.
Now, arc extinction is N poles with the opposing magnetic pole face of permanent magnet 143 and 144, and its outside is S poles, therefore, is bowed
The magnetic flux sent during depending on observation from the N poles from Inside To Outside crosses fixed contact 111 in the long side direction of movable contact 130
Contact portion 115 and movable contact 130 contact portion 130a opposed portion electric arc generating unit and reach S poles and form magnetic field.
Similarly, the contact portion 115 for crossing fixed contact 112 from Inside To Outside in the long side direction of movable contact 130 is touched with movable
First 130 contact portion 130a electric arc generating unit simultaneously reaches S poles and forms magnetic field.
Therefore, arc extinction with the magnetic flux of permanent magnet 143 and 144 together on the long side direction edge of movable contact 130
Mutual opposite direction is crossed between the contact portion 115 of fixed contact 111 and the contact portion 130a of movable contact 130 and fixed contact
Between 112 contact portion 115 and the contact portion 130a of movable contact 130.
Therefore, fixed contact 111 contact portion 115 and movable contact 130 the contact portion 130a as contact portion it
Between, electric current is from the lateral side of movable contact 130 flowing of fixed contact 111, and the direction of magnetic flux phi is from Inside To Outside
Direction.Therefore, by Fleming Left Hand Rule, produce orthogonal with the long side direction of movable contact 130 and with fixed contact 111
The opening and closing direction of contact portion 115 and movable contact 130 is orthogonal and towards the larger Lorentz force of the side of arc extinction space 145.
By the Lorentz force, between the contact portion 115 of fixed contact 111 and the contact portion 130a of movable contact 130
The electric arc of generation with from the side of the contact portion 115 of fixed contact 111 by arc extinction space 145 and reaching movable contact
The mode of 130 upper surface side is significantly elongated and is off.
Now, by making electric arc be elongated in the arc extinction space 145 in outside, so that on movable contact 130, electric arc
Arc root commutated from the rapid ARC commutating side plate 138a to ARC commutating plate portion 133 of the corner 130b of movable contact 130, should
Move successively the downside of from the arc root of electric arc to ARC commutating side plate 138a.Then, finally, as shown in figure 3, electric arc 150 is along electricity
The go out internal face in space 145 of expulsion of arc is significantly elongated.
Therefore, the time that the arc root of electric arc is detained in movable contact 130 is very short, can suppress the consumption of movable contact 130.
Also, the distance between arc root of the electric arc of fixed contact 111 and movable contact 130 significantly expands, it can prevent because solid
Determine the reduction of electric-field intensity caused by the influence of metal vapors that is produced between contact 111 and movable contact 130 by electric arc, from
And the electric-field intensity between electric arc arc root can be maintained more than arc voltage.Therefore, it is possible to reliably prevent from touching fixed
First 111 and movable contact 130 electric arc arc root vicinity electrode between produce electric arc again, it is possible to increase cut-out performance.
On the other hand, under the on-state of electromagnetic contactor 10, the electric current circulated in fixed contact 111,112 is made
In the state of positive-negative polarity is negated, when becoming off-state, from fixed contact 112 by movable contact 130 towards fixed contact
111 effluent galvanizations, sense of current is changed into opposite direction, thus Lorentz force acts on the side of arc extinction space 146, removes
Electric arc plays identical arc-suppression function towards outside arc extinction space 146 layback length.
So, according to above-mentioned first embodiment, from contact portion 130a and the fixed contact 111 and 112 of movable contact 130
Contact portion 115 contact on-state, make the contact portion 130a of movable contact 130 from the contact portion of fixed contact 111 and 112
115 leave tripping action when, movable contact 130 contact portion 130a and fixed contact 111 and 112 contact portion 115 it
Between produce electric arc.The electric arc by arc extinction be elongated to the magnetic force of permanent magnet 143 or 144 arc extinction space 145 or
146。
Now, on movable contact 130, there is electric arc chimeric with a pair of opposed front and back sides of fixed contact 111,112
ARC commutating side plate 138a, the 138b for the plate portion 133 that commutates.Therefore, produce after electric arc, as electric arc starts to arc extinction sky
Between 145 or 146 elongate, the arc root of the electric arc of the side of movable contact 130 is from the corner 130b of movable contact 130 immediately to ARC commutating
Side plate 138a or 138b are commutated, and thereafter, the arc root of electric arc is moved downwards on ARC commutating side plate 138a or 138b
Move until electric arc is off.
Therefore, the arc root of electric arc will not be contacted with movable contact 130, and the band because of electric arc is born in the side of ARC commutating plate portion 133
The destruction come, can suppress the consumption of movable contact caused by the metal vapors of reason electric arc arc root generation.Also, electric arc is changed
Be made up of to plate portion 133 metal parts such as melting temperature iron, the stainless steels higher than movable contact 130, thus with movable contact 130
Comparing can more suppress because of consumption caused by electric arc.
As a result, the life-span of movable contact 130 can be extended, it is possible to increase the reliability of electromagnetic contactor 10.
It should illustrate in the above-described first embodiment, there is mounting plate portion 134 to ARC commutating plate portion 133
It is illustrated, but is not limited to this, mounting plate portion 134 can also be omitted, by ARC commutating side plate 138a, 138b with inciting somebody to action
Extension 137a, 137b the formation section linked between both bottom is the component of U-shaped, formed by extension 137a,
The convex portion that the central portion of 137b fore-and-aft direction is contacted with the lower surface of movable contact 130, it is fixed with screw, soldering, welding etc.
Movable contact 130 is fixed in the convex portion by means.
Next, 4~Fig. 6 of reference picture is illustrated to second embodiment of the present invention.
In this second embodiment, invert the lower in shape of ARC commutating plate portion 133.
I.e., in this second embodiment, the structure as shown in Figure 5 of ARC commutating plate portion 133 described in the first embodiment
As be provided with movable contact 130 contacted with the lower surface of a pair of fixed contacts 111,112 opposite side it is flat
Mounting plate portion 301, and before and after the left and right end portions side opposed with a pair of fixed contacts 111,112 of the mounting plate portion 301
ARC commutating side plate 302a, 302b that end just extends separately down.Herein, in mounting plate portion 301, formed in central portion
There is the through hole 301a inserted for connection shaft 131.
Also, the upper surface of mounting plate portion 301 is contacted with the lower surface of movable contact 130, and by through hole 301a
In the state of being alignd with the through hole 132 of movable contact 130, ARC commutating plate portion 133 with above-mentioned composition and foregoing the
One embodiment is similarly installed on connection shaft 131.
The mounting plate portion 301 of ARC commutating plate portion 133 is so set to contact and be installed on the lower surface of movable contact 130
Connection shaft 131, as shown in figure 4, as making movable contact 130 and a pair of opposed states of fixed contact 111,112.
In this condition, as shown in fig. 6, in movable contact 130 and a pair of opposed positions of fixed contact 111,112
On, producing the front and back sides of electric arc, the rear and front end portion edge back ofs the body of the ARC commutating side plate 302a and 302b from movable contact 130
The direction of a pair of fixed contacts 111,112 is protruded downwards.
For others composition, with foregoing first embodiment identical composition, in Fig. 4~Fig. 6 with Fig. 1~
Fig. 3 corresponding part mark identical symbol, description is omitted.
Therefore, in the above-described 2nd embodiment, in the same manner as foregoing first embodiment, movable contact 130 is made
Under the breaking beginning state separated with fixed contact 111,112, in the contact portion 130a and a pair of fixed contacts of movable contact 130
111st, electric arc is produced between 112 contact portion 115.
The arc root of the electric arc results from the flat contact portion 130a and a pair of fixed contacts 111,112 of movable contact 130
Contact portion 115 between, but with two contact portion 130a and 115 separation, to a pair of fixed contacts 111,112 and movable contact
It is mobile on the outside of 130 width.
Then, by the magnetic flux of electromagnet 143 and 144 start to the layback of arc extinction space 145 or 146 it is long when,
The arc root of the electric arc of movable contact 130 is moved from the corner 130b of movable contact 130 in the downward side of front and back sides.Thereafter, from can
The corner 130c of the downside of moving contact 130 commutates to ARC commutating plate portion 133, and the arc root of electric arc is in ARC commutating plate portion 133
The downward side movements of ARC commutating side plate 302a, 302b, finally, reach ARC commutating side plate 302a, 302b bottom, such as
Shown in Fig. 6, inwall of the electric arc along arc extinction space 145 or 146 is significantly elongated and is off.
Therefore, according to second embodiment, by elongating arc, the arc root of electric arc can be made from movable contact 130 to electricity
Arc commutation plate portion 133 commutates, and can suppress the consumption of movable contact.As a result, the life-span of movable contact 130, energy can be extended
Enough improve the reliability of electromagnetic contactor 10.
It should illustrate, in the above-described 2nd embodiment, the mounting plate portion for removing ARC commutating plate portion 133 can also be cut off
The central portion of 301 long side direction, is formed and is cutd open by the mounting plate portion 301 and ARC commutating side plate 302a, 302b of left and right end portions
Face is two groups of inverted U-shaped ARC commutating plate portions, with fixing means such as screw, soldering, welding by these ARC commutating plate portion lists
Solely be fixed on movable contact 130 with a pair of opposite sides of fixed contact 111,112.In such a case it is possible to obtain with
Above-mentioned second embodiment identical action effect.
In addition, in the above-described 2nd embodiment, can be in the same manner as foregoing first embodiment in mounting plate portion 301
Upper surface side corresponding with the ARC commutating side plate 302a and 302b formation electric arc chimeric with the side of movable contact 130 change
To side plate 138a and 138b.
In addition, in above-mentioned first embodiment and second embodiment, to 130 points of ARC commutating plate portion and movable contact
Not independent situation about constituting is illustrated, but is not limited to this, can also by ARC commutating side plate 138a and 138b with
Movable contact 130 is integrally formed.
In addition, in above-mentioned first embodiment and second embodiment, there is fixed iron core to electromagnet unit 200
211 and the situation of movable core 212 be illustrated, but be not limited to this, fixed iron core 211 can also be omitted, on top
Magnetic suction unit is formed between yoke 210 and movable core 212.
In addition, as electromagnet unit 200, being also not limited to above-mentioned composition, can also be using arbitrary composition, main points
As long as relative to a pair of fixed contacts of movable contact 130 111,112 can be driven accessible and separated.
In addition, in above-mentioned first embodiment and second embodiment, being constituted to storing shell 102 by contact and covering 230
Sealing container, the situation that gas is enclosed in the sealing container is illustrated, but is not limited to this, can also be in cut-out
The inclosure of gas is omitted in the case that electric current is low.
Next, 7~Fig. 9 of reference picture is illustrated to third embodiment of the present invention.
In 3rd embodiment, replaced by the way of ARC commutating plate portion is installed in fixed contact in movable contact peace
Fill the mode of ARC commutating plate portion.
I.e., in the third embodiment, electromagnetic contactor 10 is constituted as shown in Figure 7.
The electromagnetic contactor 10 is by being configured with the contact making device 400 of contact mechanism and driving the electromagnetism of the contact making device 400
Iron unit 500 is constituted.
As shown in Figure 7 and Figure 8, there is contact making device 400 contact as arc-chutes for storing contact mechanism 401 to store shell
402.Store shell 402 and possess metal in metal square tube body of the bottom with flange part 403 prominent laterally in the contact
404 and the flat ceramic insulation substrate by the upper end for closing the metal square tube body 404 constitute fixed contact supporting insulation
Substrate 405.
Metal square tube body 404 is connect by its flange part 403 and the sealing of top yoke 510 of electromagnet unit 500 described later
The mode of conjunction is fixed.
In addition, supporting insulated substrate 405 in fixed contact, formed with keeping predetermined space and insert described later one in central portion
To the through hole 406 and 407 of fixed contact 411 and 412.Also, it is exhausted in the upper surface soldering fixed contact supporting of square tube body 404
Edge substrate 405.
As shown in fig. 7, contact mechanism 401, which possesses, is inserted into the fixed contact supporting insulated substrate 405 that shell 402 is stored in contact
Through hole 406 and 407 and fixed a pair of fixed contacts 411 and 412.These fixed contacts 411 and 412 possess insertion respectively
The through hole 406 and 407 of insulated substrate 405 is supported to fixed contact has prominent laterally flange part 413 in upper end
Conductor portion 414 is supported, and links with the supporting conductor portion 414 and is disposed in the lower surface that fixed contact supports insulated substrate 405
Side and the C-shaped portion 415 for opening wide inner side.
C-shaped portion 415 by supported along fixed contact insulated substrate 405 the upper plate portion 416 that extends laterally of lower surface and
Middle plate portion 417, the lower end side and upper plate from the middle plate portion 417 extended downwards from the outboard end of the upper plate portion 416
Portion 416 is inwards abreast that the lower board unit 418 of the opposite direction extension of fixed contact 411 and 412 is formed as C-shaped.
Herein, supporting conductor portion 414 and C-shaped portion 415 are will to be formed to the lower surface of supporting conductor portion 414 is prominent
Pin 414a is inserted into be formed in the through hole 420 in the upper plate portion 416 in C-shaped portion 415 in the state of for example by soldering
It is fixed.Should illustrate, supporting conductor portion 414 and C-shaped portion 415 fixation be not limited to soldering, can also make pin 414a with
Through hole 420 is fitted together to, or in pin 414a formation external screw threads, both is screwed in the formation internal thread of through hole 420.
In addition, for the magnetic plate 419 of C-shaped to cover the C-shaped of fixed contact 411 and 412 when installing top view
The medial surface of middle plate portion 417 in portion 415.So, the inner side of middle plate portion 417 is covered by configuring magnetic plate 419
Face, can be shielded as the magnetic field produced by the electric current circulated in middle plate portion 417.
The magnetic plate 419 can also be formed as covering around middle plate portion 417, as long as can shield by middle plate portion
The magnetic field that the electric current circulated in 417 is produced.
Also, the synthetic resin material system that limitation produces electric arc is respectively mounted in the C-shaped portion 415 of fixed contact 411 and 412
Insulating lid 421.
So, by installing insulating lid 421 in the C-shaped portion 415 of fixed contact 411 and 412, so that in the C-shaped
The upper surface side of only lower board unit 418 is exposed and forms contact portion 418a on the inner peripheral surface in portion 415.
Then, movable contact is arranged in the way of the configuration both ends in the C-shaped portion 415 of fixed contact 411 and 412
430.The connection shaft 431 that the movable contact 430 is fixed in the movable plunger 515 of electromagnet unit 500 described later is supported.As schemed
Shown in 7, for the movable contact 430, in the recess 432 for being formed about protruding downwards of the connection shaft 431 of central portion,
The through hole 433 of insertion connection shaft 431 is formed with the recess 432.
Connection shaft 431 is formed with flange part 431a prominent laterally in upper end.In the connection shaft 431 from lower end side set
Contact spring 434, then to be inserted into the through hole 433 of movable contact 430, makes upper end and the flange part of contact spring 434
431a is abutted and the mode of predetermined pushing force is obtained using the contact spring 434, for example, will movably be touched by c-type back-up ring 435
First 430 fixed position.
The movable contact 430 in the off state, the contact portion 430a at two ends and the C-shaped portion of fixed contact 411 and 412
The contact portion 418a of 415 lower board unit 418 is separated in the way of keeping predetermined space.In addition, movable contact 430 is set to
Make the contact portion 430a and fixed contact at two ends by the predetermined contact produced by contact spring 434 on on-position
The contact portion 418a contacts of the lower board unit 418 in 411 and 412 C-shaped portion 415.
Also, the outer peripheral face of the fore-and-aft direction of the square tube body 404 of shell 402 is stored in contact, electricity is elongated in configuration as shown in Figure 8
Arc and the arc extinction permanent magnet 443 and 444 for carrying out arc extinguishing.
In addition, storing the inner peripheral surface of the square tube body 404 of shell 402 in contact, as shown in Figure 7 and Figure 8, for example, arrange by synthesizing
Resinous wood is formed as the insulating cylinder body 440 for having bottom square tube shape.In the insulating cylinder body 440, in touching for fixed contact 411 and 412
The front and back position of the opposed portion of the contact portion 418 of point portion 418a and movable contact 430 be respectively formed with arc extinction room 445 and
446。
In addition, in the lower board unit 418 of fixed contact 411 and 412, opposed with the contact portion 430a of movable contact 430
Contact portion 418a lower face side be fixed with ARC commutating plate portion 450.The ARC commutating plate portion 450 is compared a pair by melting temperature
The metal material of the high electric conductivity of fixed contact 411 and 412 is formed such as iron, stainless steel.
As shown in Figure 8 and Figure 9, the ARC commutating plate portion 450 is by upper plate portion 451 and the rear ends in the upper plate portion 451
It is shaped generally as with the front and rear side plate 452 and 453 that the front and back sides of lower board unit 418 abreast extend downwards inverted U-shaped.
As shown in fig. 7, electromagnet unit 500 has the yoke 501 that flat U-shaped is viewed as from side, in the magnetic
The central portion of the base plate 502 of yoke 501 is fixed with cylindric auxiliary yoke 503.The outside for aiding in yoke 503 in the cylindrical shape is configured with
Reel 504.
The reel 504 by inserted for cylindric auxiliary yoke 503 central cylinder portion 505, from the central cylinder portion 505
The bottom lower flange portion 506 prominent to radial outside and from the upper end of central cylindrical portion 505 to prominent convex of radial outside
Edge 507 is constituted.Also, in the accommodation space volume being made up of central cylinder portion 505, lower flange portion 506 and upper flange part 507
It is wound with magnet exciting coil 508.
Also, top yoke 510 is fixed between the upper end of the openend as yoke 501.The top yoke 510 exists
Central portion is formed with the through hole 510a opposed with the central cylinder portion 505 of reel 504.
Moreover, in the central cylinder portion 505 of reel 504, being equipped with the base plate 502 in its bottom and yoke 501
Between be mounted with the movable plunger 515 of return spring 514, movable plunger 515 can be slided up and down.In the movable plunger 515,
All flange parts 516 that oriented radial outside is protruded are formed in the upper end protruded upward from top yoke 510.
In addition, in the upper surface of top yoke 510, to be fixed with the way of all flange parts 516 for surrounding movable plunger 515
Such as profile is formed as the permanent magnet 520 of ring-type for square and with circle central opening 521.The permanent magnet 520
It is that upper end side is for example magnetized to N poles by thickness direction in above-below direction, lower end side is magnetized to S poles.It should illustrate, by permanent magnetic
The shape of the central opening 521 of iron 520 is made the shape corresponding with the shape of all flange parts 516, and the shape of outer peripheral face can be with
Be formed as the arbitrary shape such as circular, square.
Moreover, in the upper surface of permanent magnet 520, being fixed with identical with the profile of permanent magnet 520 and having internal diameter ratio can
The auxiliary yoke 525 of the small through hole 524 of the external diameters of all flange parts 516 of dynamic plunger 515.In the lower surface of the auxiliary yoke 525, support
It is connected to all flange parts 516 of movable plunger 515.
In addition, the connection shaft 431 for the supporting movable contact 430 that is spirally connected in the upper surface of movable plunger 515.
Covered moreover, movable plunger 515 is made up of nonmagnetic material and is formed the cover 530 of bottomed tube, in the cover 530
Openend, to radial outside extend formed by the lower surface of flange part 531 and top yoke 510 be sealingly engaged.Thus, go out
Arc chamber 402 forms the sealing container connected via the through hole 510a of top yoke 510 with cover 530.Also, by arc-chutes
The 402 interior mixed gas for enclosing hydrogen, nitrogen, hydrogen and nitrogen of sealing containers formed with cover 530, air, SF6Deng gas.
According to the 3rd embodiment, in the state of the magnet exciting coil 508 of electromagnet unit 500 is non-power status,
Movable plunger 515 is pushed upward using return spring 514.Therefore, as shown in fig. 7, all flange parts 516 of movable plunger 515
With aiding in the lower surface of yoke 525 to abut, the lower board unit 418 of movable contact 430 from fixed contact 411 and 412 is separated upward.Cause
This, the circuit between fixed contact 411 and 412 is in dissengaged positions, and contact mechanism 401 is in off state.
So, under the off-state of electromagnet unit 500, due to having return spring 514 in the effect of movable plunger 515
Both attractions of active force and annular permanent magnnet 520, thus movable plunger 515 will not because from outside vibration and/
Or impact etc. and it is unexpected decline, can reliably prevent malfunction.
Since the off-state, when carrying out excitation to the magnet exciting coil 508 of electromagnet unit 500, in the electromagnet list
Excitation power is produced in member 500, movable plunger 515 is overcome to the attraction of the active force and annular permanent magnnet 520 of return spring 514
Power and press downwards.
Moreover, movable plunger 515 overcome return spring 514 active force and annular permanent magnnet 520 attraction it is rapid
Decline.Thus, the lower surface for descending through all flange parts 516 of movable plunger 515 abutted with the upper surface of top yoke 510 and
Stop.
So, by declining movable plunger 515, so as to movably be touched via what connection shaft 431 and movable plunger 515 linked
First 430 also decline, and its contact portion 430a passes through the contact of contact spring 434 and the contact portion of fixed contact 411 and 412
418a is contacted.
Therefore, the high current as external power supply source is touched by fixed contact 411, movable contact 430 and fixation
First 412 and be supplied to load close pole state.
Pole state is closed from the contact mechanism 401, in the case of cutting off to load supply electric current, stops electromagnet unit
The excitation of 500 magnet exciting coil 508.
Accordingly, because the excitation power for making movable plunger 515 move downwards in electromagnet unit 500 disappears, so can
Dynamic plunger 515 rises because of the active force of return spring 514, the close auxiliary yoke 525 of all flange parts 516, therewith annular permanent magnetic
The attraction increase of iron 520.
By rising the movable plunger 515, the movable contact 430 linked via connection shaft 431 rises.It is corresponding to this
Ground, during giving contact with contact spring 434, movable contact 430 is contacted with fixed contact 411 and 412.Thereafter, exist
At the time of the contact of contact spring 434 disappears, separated upward from fixed contact 411 and 412 as movable contact 430
Off state.
During as the off state, in the contact portion 418a and movable contact 430 of fixed contact 411 and 412 contact portion
Electric arc is produced between 430a, the "on" position of intermittent current by the electric arc.Now, due to being provided with covering fixed contact
The insulating lid 421 of the upper plate portion 416 in 411 and 412 C-shaped portion 415 and middle plate portion 417, it is thus possible to only in fixed contact
Electric arc is produced between 411 and 412 contact portion 418a and the contact portion 430a of movable contact 430.Therefore, it is possible to reliably prevent
Electric arc is moved in the C-shaped portion 415 of fixed contact 411 and 412, can stablize the generation state of electric arc, it is possible to increase arc extinguishing
Performance.Also, due to also covering the two sides of fixed contact 411 and 412 using insulating lid 421, so also can reliably prevent
Only short circuit occurs for the front end of electric arc.
Further, since the upper plate portion 416 and middle plate portion 417 in C-shaped portion 415 are covered using insulating lid 421, so passing through
Insulating lid 421 between the both ends of movable contact 430 and the upper plate portion 416 in C-shaped portion 415 and middle plate portion 417 can be true
Insulation distance is protected, the height in the movable direction of movable contact 430 can be shortened.Therefore, it is possible to minimize contact making device 400.
In addition, produced between the contact portion 418a of fixed contact 411 and 412 and the contact portion 430a of movable contact 430
The arc root of electric arc is elongated by arc extinction with permanent magnet 444 as shown in Figure 8.Therefore, in the side of movable contact 430,
Commutated along side to upper end side.On the other hand, in the lower board unit 418 of fixed contact 411 and 412, as shown in figure 8, electric arc
Arc root along side commutate downwards, along ARC commutating plate portion 450 side plate 453 reach lower end.
As a result, the arc root of electric arc is not contacted with fixed contact 411 and 412, the side of ARC commutating plate portion 450 is born because of electric arc
And the destruction brought, can suppress reason electric arc arc root produce metal vapors caused by fixed contact consumption.Also,
ARC commutating plate portion 450 is made up of melting temperature than metal parts such as the high iron of fixed contact 411,412, stainless steels, so with
Fixed contact 411,412, which compares, can more suppress because of consumption caused by electric arc.Therefore, it is possible to extend fixed contact 411,
412 life-span, it is possible to increase the reliability of electromagnetic contactor 10.
It should illustrate, in the above-described 3rd embodiment, be formed as the situation of reverse U shape shape to ARC commutating plate portion 450
It is illustrated, is not limited to this or is installed on lower board unit as with substantially U-shaped that above and below Fig. 9 is inverted
418。
In addition, as shown in figure 11, it would however also be possible to employ directly form the side of ARC commutating plate portion 461 and 462 in lower board unit 418
Formula replaces the mode that ARC commutating plate portion 450 is independently formed.
Can be only using arbitrary composition, main points in addition, as electromagnet unit 500, being not limited to above-mentioned composition
Relative to a pair of fixed contacts of movable contact 430 411,412 can be can contact and discretely driven.
In addition, in the above-described 3rd embodiment, sealing container is constituted to storing shell 402 by contact and covering 530, it is close at this
The situation that gas is enclosed in envelope container is illustrated, but is not limited to this, can also be in the case where the electric current of cut-out is low
Omit the inclosure of gas.
In addition, in the embodiment of above-mentioned first embodiment~the 3rd, to applying the present invention to electromagnetic contactor
Situation is illustrated, but is not limited to this, also can be using the present invention in other electromagnetism shutters of electromagnetic relay etc..
Claims (3)
1. a kind of contact making device, it is characterised in that possess：
A pair of fixed contacts, are fixedly arranged in arc-chutes with keeping predetermined space；
Movable contact, can contact with the pair of fixed contact and discretely be disposed in the arc-chutes,
Also, in the movable contact, the ARC commutating plate portion of electric conductivity is formed, the ARC commutating plate portion makes to be produced during open circuit
The arc root commutation of raw electric arc, wherein, open circuit refers to that the movable contact is separated with the pair of fixed contact,
The ARC commutating plate portion is made up of mounting plate portion and ARC commutating side plate, the mounting plate portion and the movable contact
Same the pair of fixed contact opposite side contact, and there is edge respectively in the position opposed with the pair of fixed contact
The direction bending of a pair of fixed contacts and the warpage extension of extension are left, in each described warpage prolongation of mounting plate portion
Not Xing Cheng ARC commutating side plate described in a pair, each described ARC commutating side plate connects with the lateral edges with the movable contact
Tactile mode extends.
2. contact making device according to claim 1, it is characterised in that
The ARC commutating plate portion is formed by the melting temperature metallic plate higher than the movable contact.
3. a kind of electromagnetism shutter, it is characterised in that
Possesses the contact making device described in the claim 1 or 2, the movable core of the movable contact and electromagnet apparatus connects
Knot, the pair of fixed contact is connected with external connection terminals.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012266975 | 2012-12-06 | ||
| JP2012-266975 | 2012-12-06 | ||
| PCT/JP2013/006464 WO2014087574A1 (en) | 2012-12-06 | 2013-10-31 | Contact device and electromagnetic switch using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104718591A CN104718591A (en) | 2015-06-17 |
| CN104718591B true CN104718591B (en) | 2017-08-25 |
Family
ID=50883016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380051864.XA Expired - Fee Related CN104718591B (en) | 2012-12-06 | 2013-10-31 | Contact making device and the electromagnetism shutter using the contact making device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5990281B2 (en) |
| KR (1) | KR101698421B1 (en) |
| CN (1) | CN104718591B (en) |
| WO (1) | WO2014087574A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6345369B2 (en) * | 2016-03-14 | 2018-06-20 | 三菱電機株式会社 | Switch |
| CN105914105A (en) * | 2016-06-14 | 2016-08-31 | 朱庆茂 | Magnetic-latching high-voltage direct-current relay, and assembling method and working method thereof |
| CN111433879B (en) * | 2017-12-01 | 2022-02-18 | 三菱电机株式会社 | Contactor |
| JP7243535B2 (en) * | 2019-09-05 | 2023-03-22 | 富士電機機器制御株式会社 | Contact device and magnetic contactor |
| JP2022091560A (en) * | 2020-12-09 | 2022-06-21 | パナソニックＩｐマネジメント株式会社 | Contact arrangement and electromagnetic relay |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5546061A (en) * | 1994-02-22 | 1996-08-13 | Nippondenso Co., Ltd. | Plunger type electromagnetic relay with arc extinguishing structure |
| CN202172053U (en) * | 2011-08-05 | 2012-03-21 | 北京人民电器厂有限公司 | Circuit breaker magnet yoke apparatus for arc ignition |
| TW201230118A (en) * | 2010-08-12 | 2012-07-16 | Fuji Elec Fa Components & Sys | Circuit breaker |
| CN104221115A (en) * | 2012-04-13 | 2014-12-17 | 富士电机机器制御株式会社 | Contact device and electromagnetic switch using same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5827469Y2 (en) * | 1978-08-31 | 1983-06-15 | 富士電機株式会社 | Fixed contact |
| JP3778081B2 (en) * | 2001-12-25 | 2006-05-24 | 三菱電機株式会社 | Arc extinguishing device and on-vehicle switch using the same |
| JP2006019148A (en) | 2004-07-01 | 2006-01-19 | Matsushita Electric Works Ltd | Electromagnetic switch |
| JP5050222B2 (en) * | 2008-10-06 | 2012-10-17 | 富士電機機器制御株式会社 | Movable contactor of magnetic contactor |
| JP5727862B2 (en) * | 2011-05-19 | 2015-06-03 | 富士電機機器制御株式会社 | Magnetic contactor |
-
2013
- 2013-10-31 CN CN201380051864.XA patent/CN104718591B/en not_active Expired - Fee Related
- 2013-10-31 WO PCT/JP2013/006464 patent/WO2014087574A1/en active Application Filing
- 2013-10-31 JP JP2014550895A patent/JP5990281B2/en active Active
- 2013-10-31 KR KR1020157008641A patent/KR101698421B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5546061A (en) * | 1994-02-22 | 1996-08-13 | Nippondenso Co., Ltd. | Plunger type electromagnetic relay with arc extinguishing structure |
| TW201230118A (en) * | 2010-08-12 | 2012-07-16 | Fuji Elec Fa Components & Sys | Circuit breaker |
| CN202172053U (en) * | 2011-08-05 | 2012-03-21 | 北京人民电器厂有限公司 | Circuit breaker magnet yoke apparatus for arc ignition |
| CN104221115A (en) * | 2012-04-13 | 2014-12-17 | 富士电机机器制御株式会社 | Contact device and electromagnetic switch using same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2014087574A1 (en) | 2017-01-05 |
| KR101698421B1 (en) | 2017-01-20 |
| KR20150053944A (en) | 2015-05-19 |
| WO2014087574A1 (en) | 2014-06-12 |
| JP5990281B2 (en) | 2016-09-07 |
| CN104718591A (en) | 2015-06-17 |
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