CN104718591A - Contact device and electromagnetic switch using same - Google Patents
Contact device and electromagnetic switch using same Download PDFInfo
- Publication number
- CN104718591A CN104718591A CN201380051864.XA CN201380051864A CN104718591A CN 104718591 A CN104718591 A CN 104718591A CN 201380051864 A CN201380051864 A CN 201380051864A CN 104718591 A CN104718591 A CN 104718591A
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- Prior art keywords
- contact
- arc
- plate portion
- movable contact
- fixed contact
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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
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- 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
Provided are a contact device, which can easily extinguish an arc generated between stationary contacts and a movable contact during opening, and an electromagnetic switch using the same. The contact device is provided with a pair of stationary contacts (111, 112) fixedly disposed with a prescribed gap within an arc extinguishing chamber (102) and a movable contact (130) disposed so as to be able to contact and separate from the pair of stationary contacts within the arc extinguishing chamber. A conductive arc current reversing plate part (133), which reverses, from the movable contact, the current of the foot of an arc generated during opening that creates separation from the pair of stationary contacts, is formed in a position where the movable contact faces the pair of stationary contacts.
Description
Technical field
The present invention relates to a pair fixed contact having and configure with keeping predetermined space and the contact making device of the movable contact also configured discretely can be contacted with these fixed contacts and use the electromagnetism shutter of this contact making device.
Background technology
As the contact making device of opening and closing current path, in the past, in the electromagnetism such as electromagnetic relay, electromagnetic contactor shutter, propose multiple extinguishing in order to the closure state of contact mechanism contacted from fixed contact and movable contact cut off electric current become off-state and make movable contact leave the open circuit of fixed contact time the contact mechanism of electric arc that produces.
Such as, propose following electromagnetism opening and closing device, namely possess arrange discretely with preset distance a pair fixed contact respectively with fixed contact, can contact with this pair fixed contact and arrange discretely left and right end have moving contact movable contact, drive the electromagnet apparatus of movable contact and receive the protective case parts of movable contact and fixed contact, the permanent magnet (for example, referring to patent documentation 1) of arc extinction is configured abreast in the outside of protective case parts and movable contact.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2006-19148 publication
Summary of the invention
Technical problem
But, in the past case recorded in above-mentioned patent documentation 1, although electric arc is elongated by the magnetic force of permanent magnet, be easy to carry out arc extinguishing, but from during the failure of current that the on-state that movable contact contacts with fixed contact makes movable contact be separated and open circuit time the arc root of electric arc that produces moved to side, arc extinguishing space on the moving contact of movable contact by the magnetic force of permanent magnet.The arc root depositing electric arc is after movement trapped in the bight of movable contact, therefore there is the metal vapors owing to producing from electric arc arc root and consumes the unsolved problem of movable contact.
Therefore, the present invention is conceived to the unsolved problem of above-mentioned past case, and object is to provide a kind of can suppress the electric arc because producing between fixed contact during open circuit and movable contact and the contact making device of the consumption of the movable contact caused and employ the electromagnetism shutter of this contact making device.
Technical scheme
To achieve these goals, the first aspect of contact making device of the present invention, possesses: a pair fixed contact, is fixedly arranged in arc control device with keeping predetermined space; Movable contact, can contact with above-mentioned a pair fixed contact and be disposed in discretely in above-mentioned arc control device.And, either party in above-mentioned movable contact and above-mentioned a pair fixed contact, form the ARC commutating plate portion of conductivity, described ARC commutating plate portion makes the arc root of the electric arc produced during open circuit commutate, wherein, short circuit refers to that above-mentioned movable contact is separated with above-mentioned a pair fixed contact.
According to this first aspect, by being formed in the ARC commutating plate portion of the conductivity of the position opposed with the opposing party of either party in movable contact and a pair fixed contact, the arc root of the electric arc that movable contact can be made to produce when a pair fixed contact leaves commutates from movable contact to ARC commutating plate portion, can suppress the consumption being provided with side, ARC commutating portion of movable contact and a pair fixed contact.
In addition, the second aspect of contact making device of the present invention is, above-mentioned ARC commutating plate portion is formed by the metallic plate that melt temperature is higher than above-mentioned movable contact.
According to this second aspect, because the melt temperature in ARC commutating plate portion is higher than the melt temperature of movable contact, so by making the arc root of electric arc to the commutation of ARC commutating plate portion, can bear in ARC commutating plate portion the destruction caused by electric arc, thus the consumption of movable contact can be suppressed.
In addition, the third aspect of contact making device of the present invention is, above-mentioned ARC commutating portion is made up of mounting plate portion and a pair ARC commutating side plate, described mounting plate portion contacts with same above-mentioned a pair fixed contact opposite side of above-mentioned movable contact, and the direction bending had in the position opposed with above-mentioned a pair fixed contact along leaving from a pair fixed contact and the warpage extension extended, described a pair ARC commutating side plate extends from the warpage extension of this mounting plate portion in the mode of the side edge contact with above-mentioned movable contact.
According to this third aspect, by mounting plate portion is installed on movable contact with the surface of a pair fixed contact opposite side, ARC commutating plate portion easily can be installed on movable contact.And, by the side of a pair ARC commutating side plate covering movable contact, the consumption of movable contact can be reduced further.
In addition, the fourth aspect of contact making device of the present invention is, above-mentioned ARC commutating plate portion is made up of mounting plate portion and a pair ARC commutating side plate, the surface contact of same above-mentioned a pair fixed contact opposite side of described mounting plate portion and above-mentioned movable contact, described a pair ARC commutating side plate be formed in the position opposed with above-mentioned a pair fixed contact of this mounting plate portion both sides of the edge and along extending from the direction that above-mentioned a pair fixed contact leaves.
According to this fourth aspect, ARC commutating plate portion has from movable contact to a pair ARC commutating side plate extended with a pair fixed contact opposite side, and the arc root of electric arc thus can be made in this pair ARC commutating side plate to the direction commutation left from movable contact.
In addition, 5th aspect of contact making device of the present invention is, above-mentioned a pair fixed contact is formed as C-shaped by upper plate portion, intermediate plate portion and lower board unit, above-mentioned movable contact energy contacts with this lower board unit and is configured between above-mentioned upper plate portion and lower board unit discretely, above-mentioned a pair fixed contact lower board unit with the surface of above-mentioned movable contact opposite side, ARC commutating plate portion is set.
According to the 5th aspect, because ARC commutating plate portion is formed at the contrary side of the same movable contact of a pair fixed contact, so the arc root of electric arc can be made in ARC commutating plate portion to commutate towards from a pair fixed contact to the direction left with movable contact opposite side.
In addition, the first aspect of electromagnetism opening and closing device of the present invention is, possess the contact making device of aforesaid first aspect to the 5th aspect, the movable core of above-mentioned movable contact and electromagnet apparatus links, above-mentioned a pair fixed contact and external connection terminal sub-connection.
According to this formation, can provide a kind of and form the contact making device that reliably arc extinction produced during open circuit can be improved cut-out performance and the electromagnetism shutter employing this contact making device by simple.
Beneficial effect
According to the present invention, when producing electric arc during the open circuit that movable contact leaves from a pair fixed contact between movable contact and a pair fixed contact, the arc root of the electric arc of the side side in movable contact and a pair fixed contact is commutated rapidly to ARC commutating plate portion, the consumption of the side in movable contact and a pair fixed contact can be suppressed.Therefore, it is possible to extend the life-span of movable contact.
In addition, by the contact making device with above-mentioned effect is applied to electromagnetism shutter, can provide a kind of by forming the consumption of movable contact and the electromagnetism shutter such as electromagnetic contactor, electromagnetic relay of life-saving that the electric arc because producing during open circuit can be suppressed to cause easily.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the first execution mode represented when applying the present invention to electromagnetic contactor.
Fig. 2 is the stereogram in the ARC commutating plate portion representing the first execution mode.
Fig. 3 represents to utilize the ARC commutating plate portion of the first execution mode and the electric arc that obtains extends the cutaway view of situation.
Fig. 4 is the cutaway view of the second execution mode represented when applying the present invention to electromagnetic contactor.
Fig. 5 is the stereogram in the ARC commutating plate portion representing the second execution mode.
Fig. 6 represents to utilize the ARC commutating plate portion of the second execution mode and the electric arc that obtains extends the cutaway view of situation.
Fig. 7 is the cutaway view of the 3rd execution mode represented when applying the present invention to electromagnetic contactor.
Fig. 8 represents to utilize the ARC commutating plate portion of the 3rd execution mode and the electric arc that obtains extends the cutaway view of situation.
Fig. 9 is the stereogram in the ARC commutating plate portion representing the 3rd execution mode.
Figure 10 is the stereogram in the ARC commutating plate portion of the variation representing the 3rd execution mode.
Figure 11 is the stereogram in the ARC commutating plate portion of other the variation representing the 3rd execution mode.
Symbol description
10 ... electromagnetic contactor,
100 ... contact making device,
101 ... contact mechanism,
102 ... contact storage shell (arc control device),
103 ... barrel,
104 ... metal square tube body,
111,112 ... fixed contact,
114 ... supporting conductor portion,
115 ... contact portion,
130 ... movable contact, 130a ... contact portion, 130b, 130c ... bight,
131 ... connection shaft,
133 ... ARC commutating plate portion,
134 ... mounting plate portion,
135 ... median plate portion, 135a ... through hole,
136a, 136b ... joggling part,
137a, 137b ... extension,
138a, 138b ... ARC commutating side plate,
139 ... contact spring,
145,146 ... arc extinction space,
200 ... electromagnet unit,
201 ... yoke,
203 ... cylindric auxiliary yoke,
204 ... reel,
208 ... magnet exciting coil,
210 ... top yoke,
211 ... fixed iron core,
212 ... movable core,
214 ... return spring,
301 ... mounting plate portion,
302a, 302b ... ARC commutating side plate,
400 ... contact making device,
401 ... contact mechanism,
402 ... contact storage shell (arc control device),
403 ... barrel,
404 ... metal square tube body,
411,412 ... fixed contact,
414 ... supporting conductor portion,
415 ... contact portion,
430 ... movable contact, 430a ... contact portion,
431 ... connection shaft,
439 ... contact spring,
445,446 ... arc extinction space,
450 ... ARC commutating plate portion,
500 ... electromagnet unit,
501 ... yoke,
503 ... cylindric auxiliary yoke,
504 ... reel,
508 ... magnet exciting coil,
510 ... top yoke,
511 ... fixed iron core,
512 ... movable core,
514 ... return spring
Embodiment
Below, based on accompanying drawing, embodiments of the present invention are described.
Fig. 1 is the cutaway view of the first execution mode when contact making device of the present invention being applied to electromagnetic contactor, and Fig. 2 is the exploded perspective view of contact storage shell.In this Fig. 1 and Fig. 2,10 is electromagnetic contactor, and this electromagnetic contactor 10 is by being configured with the contact making device 100 of contact mechanism and driving the electromagnet unit 200 of this contact making device 100 to form.
As depicted in figs. 1 and 2, contact making device 100 has the storage of the contact as the arc control device shell 102 of storage contact mechanism 101.Storage shell 102 in this contact is by having insulating properties and the barrel 103 of lower ending opening and the metal square tube body 104 that engages with the lower surface of this barrel 103 are formed.Metal square tube body 104 is fixed with the mode of top yoke 210 sealed engagement of electromagnet unit 200 described later with its flange part 105.
In addition, the through hole 106 and 107 that central portion inserts a pair fixed contact 111 and 112 described later is formed with keeping predetermined space at the top board 103a of barrel 103.
As shown in Figure 1, contact mechanism 101 possesses the through hole 106 and 107 of the top board 103a being inserted into contact storage shell 102 and fixing a pair fixed contact 111 and 112.These fixed contacts 111 and 112 possess the contact supporting plate conductor portion 114 in upper end with laterally outstanding flange part 113 of the through hole 106 and 107 being inserted into top board 103a respectively and link with this contact supporting plate conductor portion 114 and be disposed in the lower face side of top board 103a and define the contact conductor portion 116 of smooth contact portion 115 at medial extremity.
Further, such as movable contact 130 made of copper is arranged in mode opposed with the contact conductor portion 116 of fixed contact 111 and 112 from below.The connection shaft 131 that this movable contact 130 is fixed in the movable core 212 of electromagnet unit 200 described later supports.As shown in Figure 1, this movable contact 130 is formed with the through hole 132 inserted for connection shaft 131 at central portion.
For connection shaft 131, utilize the back-up ring 131a be made up of the C type back-up ring given prominence to laterally or E type back-up ring to prevent retainer ring 131b from dislocating at its upper end, be configured with movable contact 130 in the downside of this retainer ring 131b.
In addition, ARC commutating plate portion 133 is configured with at movable contact 130 with the lower surface of a pair fixed contact 111,112 opposite side.This ARC commutating plate portion 133 is formed by metal material such as iron, the stainless steel etc. of the melt temperature conductivity higher than movable contact 130.
As shown in Figure 2, this ARC commutating plate portion 133 has the mounting plate portion 134 contacted with the lower surface of 112 opposition sides with a pair fixed contact 111 with movable contact 130.This mounting plate portion 134 by defining the median plate portion 135 of the through hole 135a inserted for connection shaft 131 at central portion, the joggling part 136a, the 136b that are formed at the bending downwards at the both ends, left and right in this median plate portion 135, extension 137a, 137b of extending laterally abreast from lower end and the median plate portion 135 of this joggling part 136a, 136b form.Further, be integrally formed at the front and back sides of extension 137a, the 137b at two ends, left and right and extend respectively to top, and a pair ARC commutating side plate 138a and 138b chimeric with the two sides, front and back of movable contact 130.
Then, ARC commutating plate portion 133 is installed on movable contact 130.The installation in this ARC commutating plate portion 133 is undertaken by such as under type, namely, make contacting with the lower surface of 112 opposite side with a pair fixed contact 111 of mounting plate portion 134 and movable contact 130, and the through hole 132 of movable contact 130 and the through hole 135a of mounting plate portion 134 are alignd, then makes ARC commutating side plate 138a, 138b chimeric with the front and back sides of movable contact 130.
Thereafter, the flange part 133c being positioned at the downside of preset distance of being separated by the relative retainer ring 133b of connection shaft 131 is configured with and carries out around connection shaft 131 contact spring 139 that reels, in this condition, in the through hole 132 and 135a in movable contact 130 and ARC commutating plate portion 133, insert connection shaft 131, then with back-up ring 131a, retainer ring 133b is fixed.Thus, movable contact 130 and ARC commutating plate portion 133 are configured at connection shaft 131 to be touched spring 139 by the state being pressed in retainer ring 133b.
This movable contact 130 is when being in off-state, and the smooth contact portion 115 of the lower board unit of the contact portion 130a at two ends and the contact conductor portion 116 of fixed contact 111 and 112 is separated to keep the mode of predetermined space.In addition, movable contact 130 is set to by the predetermined contact of contact spring 139, the contact portion at two ends and fixed contact 111 be contacted with the smooth contact portion 115 of lower end of the contact conductor portion 116 of 112 on on-position.
And, on the outer peripheral face opposed from fore-and-aft direction with the opposed portion of movable contact 130 with fixed contact 111,112 of the barrel 103 of contact storage shell 102, as shown in Figure 3, a pair arc extinction permanent magnet 142 and 143 that the electric arc that produces when a pair fixed contact 111 and 112 leaves movable contact 130 elongates is equipped.
The magnetic pole strength mutually opposing at thickness direction of this pair arc extinction permanent magnet 143 and 144 is geomagnetic into identical polar such as N pole.Further, in two outsides of the fore-and-aft direction of a pair fixed contact 111,112 of barrel 103 and the opposed locations of movable contact 130, as shown in Figure 3, arc extinction space 145 and 146 is formed with.
Therefore, as shown in Figure 3, the electric arc 150 that movable contact 130 produces when a pair fixed contact 111 and 112 leaves is by the magnetic flux from arc extinction permanent magnet 143 and 144, long with arc extinction space 145 layback of permanent magnet 143 side to arc extinction.
Now, on movable contact 130, at chimeric ARC commutating side plate 138a and 138b having ARC commutating plate portion 133 of rear ends with a pair fixed contact 111,112 opposed positions, movable contact 130 is just from after a pair fixed contact 111,112 leaves thus, and the arc root of electric arc is positioned at the bight 130b that the rear ends of movable contact 130 exposes.
But, ensuing moment, commutate in side, top to the ARC commutating side plate 138a in ARC commutating plate portion 133, the arc root of electric arc 150 elongates due to the magnetic flux of arc extinction permanent magnet 143 and 144, thus the lower end side to ARC commutating side plate 138a and 138b moves, finally, as shown in Figure 3, the linking part of ARC commutating side plate 138a and 138b and extension 137a and 137b is arrived.
As shown in Figure 1, electromagnet unit 200 has the yoke 201 being viewed as U-shaped from the side, is fixed with cylindric auxiliary yoke 203 at the central portion of the base plate 202 of this yoke 201.Reel 204 is configured with in the outside of the auxiliary yoke 203 of this cylindrical shape.
This reel 204 is by the central cylinder portion 205 inserted for cylindric auxiliary yoke 203, from the bottom in this central cylinder portion 205 lower flange 206 outstanding to radial outside, form from the upper flange part 207 outstanding to radial outside on the downside of the summary of the upper end of central cylindrical portion 205.Further, magnet exciting coil 208 is wound with at the accommodation space be made up of central cylinder portion 205, lower flange 206 and upper flange part 207.
And, between the upper end as openend of yoke 201, be fixed with top yoke 210.This top yoke 210 is formed with the through hole 210a of chimeric supporting and fixing iron core 211 at central portion.
In addition, fixed iron core 211 is configured with in the side, top in the central cylinder portion 205 of reel 204.Be configured with movable core 212 in the side, bottom opposed with this fixed iron core 211 in the mode of preset distance of being separated by, between this movable core 212 and fixed iron core 211, arrange return spring 214.In addition, the connection shaft 131 of supporting movable contact 130 is fixed with at movable core 212.
And fixed iron core 211 and movable core 212 are made up of nonmagnetic material and the cover 230 being formed bottom tube-like covers, at the openend of this cover 230, extend to radial outside and the lower surface sealed engagement of the flange part 231 that formed and top yoke 210.Thus, receive shell 102 by contact and form with cover 230 airtight container contact mechanism 101 and fixed iron core 211, movable core 212 being configured at enclosure space.And, in the airtight containers formed by contact storage shell 102 and cover 230, enclose mist, air, the SF of hydrogen, nitrogen, hydrogen and nitrogen
6, the gas such as He.
Next, the action of above-mentioned execution mode is described.
Current, setting fixed contact 111 is such as connected with the electric power supply source of supply big current, and fixed contact 112 is connected with load.
In this condition, the magnet exciting coil 208 in setting electromagnet unit 200 is non-excited state, is in the off-state not producing the excitation power that movable core 212 is declined in electromagnet unit 200.Under this off-state, apply to make its pressure left downward from fixed iron core 211 by return spring 214 pairs of movable cores 212.
Therefore, the contact portion 130a of the movable contact 130 of the contact mechanism 101 linked with movable core 212 via connection shaft 131 with preset distance and fixed contact 111 with 112 smooth contact portion 115 be separated and be positioned at below.Therefore, the current path between fixed contact 111 and 112 is in dissengaged positions, and contact mechanism 101 is off state.
From this off-state, in order to load supply electric power, excite the magnet exciting coil 208 of electromagnet unit 200, produce excitation power in electromagnet unit 200, attract movable core 212 with fixed iron core 211, make movable core 212 overcome the active force of return spring 214 and rise thus.The upper surface rising through movable core 212 of this movable core 212 abuts with the lower surface of fixed iron core 211 and stops.
Like this, by making movable core 212 rise, the movable contact 130 linked via connection shaft 131 and movable core 212 also rises, its contact portion 130a by the contact of contact spring 139 and fixed contact 111 with 112 smooth contact portion 115 contact.
Therefore, what the big current becoming external power supply source was fed into load by fixed contact 111, movable contact 130 and fixed contact 112 closes pole state.
From this contact mechanism 101 close pole state, when cutting off to load supply electric current, stop the excitation of magnet exciting coil 208 of electromagnet unit 200.
Thus, because the excitation power making movable core 212 be moved upward in electromagnet unit 200 disappears, so movable core 212 declines because of the active force of return spring 214.
Because this movable core 212 declines, thus the movable contact 130 linked via connection shaft 131 declines.Correspondingly, during giving contact with contact spring 139, movable contact 130 contacts with 112 with fixed contact 111.Thereafter, when the contact of contact spring 139 disappears, the off state that movable contact 130 is separated from fixed contact 111 and 112 is become downwards.
When becoming this off state, between the smooth contact portion 115 and the contact portion 130a of movable contact 130 of fixed contact 111 and 112, produce electric arc, the "on" position of intermittent current by this electric arc.
Now, the opposing magnetic pole face of arc extinction permanent magnet 143 and 144 is N pole, be S pole outside it, therefore, the magnetic flux sent from this N pole during top view crosses the electric arc generating unit of the contact portion 115 of arc extinction permanent magnet 143 and 144 fixed contact 111 and the opposed portion of the contact portion 130a of movable contact 130 at the long side direction of movable contact 130 from Inside To Outside and arrives S pole and form magnetic field.Similarly, cross the electric arc generating unit of the contact portion 115 of fixed contact 112 and the contact portion 130a of movable contact 130 at the long side direction of movable contact 130 from Inside To Outside and arrive S pole and form magnetic field.
Therefore, the magnetic flux of arc extinction permanent magnet 143 and 144 crosses between the contact portion 115 of fixed contact 111 and the contact portion 130a of movable contact 130 along mutual rightabout and between the contact portion 115 of fixed contact 112 and the contact portion 130a of movable contact 130 at the long side direction of movable contact 130 together.
Therefore, between the contact portion 115 and the contact portion 130a as contact portion of movable contact 130 of fixed contact 111, electric current moves from fixed contact 111 side direction movable contact 130 effluent, and magnetic flux phi towards being direction from Inside To Outside.Therefore, by Fleming Left Hand Rule, produce orthogonal with the long side direction of movable contact 130 and orthogonal with the contact portion 115 of fixed contact 111 and the opening and closing direction of movable contact 130 and towards the larger Lorentz force of side, arc extinction space 145.
By this Lorentz force, the electric arc produced between the contact portion 115 and the contact portion 130a of movable contact 130 of fixed contact 111 with the side of the contact portion 115 from fixed contact 111 by arc extinction space 145 and the mode arriving the upper surface side of movable contact 130 significantly elongate and extinguished.
Now, elongate in the arc extinction space 145 in outside by making electric arc, thus on movable contact 130, the ARC commutating side plate 138a that the arc root of electric arc is rapidly to ARC commutating plate portion 133 from the bight 130b of movable contact 130 commutates, and the arc root of this electric arc moves successively to the downside of ARC commutating side plate 138a.Then, finally, as shown in Figure 3, electric arc 150 significantly elongates along the internal face in arc extinction space 145.
Therefore, the time of being detained the arc root of electric arc at movable contact 130 is very short, can suppress the consumption of movable contact 130.And, distance between the arc root of the electric arc of fixed contact 111 and movable contact 130 significantly expands, the reduction of the electric field strength caused because of the impact of the metal vapors produced by electric arc between fixed contact 111 and movable contact 130 can be prevented, thus the electric field strength between electric arc arc root can be maintained more than arc voltage.Therefore, it is possible to reliably prevent from again producing electric arc between the electrode near the electric arc arc root of fixed contact 111 and movable contact 130, cut-out performance can be improved.
On the other hand, under the on-state of electromagnetic contactor 10, under the state of positive-negative polarity negate making the electric current circulated in fixed contact 111,112, when becoming off-state, from fixed contact 112, by movable contact 130, towards fixed contact 111 effluent galvanization, sense of current becomes contrary direction, and thus Lorentz force acts on side, arc extinction space 146, except electric arc is long towards arc extinction space 146 layback, play identical arc-suppression function.
Like this, according to above-mentioned first execution mode, from the contact portion 130a of movable contact 130 and fixed contact 111 with 112 the on-state that contacts of contact portion 115, during the tripping action that the contact portion 130a of movable contact 130 is left from the contact portion 115 of fixed contact 111 and 112, between the contact portion 130a and the contact portion 115 of fixed contact 111 and 112 of movable contact 130, produce electric arc.This electric arc is elongated to arc extinction space 145 or 146 by the magnetic force of arc extinction with permanent magnet 143 or 144.
Now, on movable contact 130, with a pair fixed contact 111,112 opposed chimeric ARC commutating side plate 138a, 138b having ARC commutating plate portion 133 of front and back sides.Therefore, after producing electric arc, along with electric arc starts to elongate to arc extinction space 145 or 146, the arc root of the electric arc of movable contact 130 side commutates to ARC commutating side plate 138a or 138b immediately from the bight 130b of movable contact 130, thereafter, the arc root of electric arc moves downwards until electric arc is extinguished on ARC commutating side plate 138a or 138b.
Therefore, the arc root of electric arc can not contact with movable contact 130, and the destruction of bringing because of electric arc is born in side by ARC commutating plate portion 133, the metal vapors that reason electric arc arc root can be suppressed to produce and the consumption of the movable contact caused.Further, ARC commutating plate portion 133 is made up of, so more can suppress the consumption caused because of electric arc compared with movable contact 130 metal parts such as iron, stainless steel that melt temperature is higher than movable contact 130.
Its result, can extend the life-span of movable contact 130, can improve the reliability of electromagnetic contactor 10.
Should illustrate, in the above-described first embodiment, the situation that ARC commutating plate portion 133 has mounting plate portion 134 is illustrated, but be not limited thereto, also mounting plate portion 134 can be omitted, the component that section is U-shaped is formed by ARC commutating side plate 138a, 138b and by extension 137a, 137b of linking between both bottoms, form the protuberance contacted with the lower surface of movable contact 130 by the central portion of the fore-and-aft direction of extension 137a, 137b, with fixing means such as screw, soldering, welding, this protuberance is fixed on movable contact 130.
Next, with reference to Fig. 4 ~ Fig. 6, the second execution mode of the present invention is described.
In this second embodiment, the lower in shape reversion in ARC commutating plate portion 133 is made.
Namely, in this second embodiment, the ARC commutating plate portion 133 described in the first embodiment is configured to be provided with the flat mounting plate portion 301 contacted with the lower surface of a pair fixed contact 111,112 opposite side with movable contact 130 as shown in Figure 5, and this mounting plate portion 301 with the rear ends of a pair fixed contact 111,112 opposed left and right end portions sides ARC commutating side plate 302a, 302b respectively to extended portion.Herein, in mounting plate portion 301, be formed with the through hole 301a inserted for connection shaft 131 at central portion.
And, contact at the lower surface making the upper surface of mounting plate portion 301 with movable contact 130, and under the state of being alignd with the through hole 132 of movable contact 130 by through hole 301a, the ARC commutating plate portion 133 with above-mentioned formation is installed on connection shaft 131 in the same manner as aforesaid first execution mode.
So make the mounting plate portion 301 in ARC commutating plate portion 133 contact with the lower surface of movable contact 130 and be installed on connection shaft 131, as shown in Figure 4, become and make movable contact 130 and a pair fixed contact 111,112 opposed states.
In this condition, as shown in Figure 6, at movable contact 130 with on a pair fixed contact 111,112 opposed positions, producing the front and back sides of electric arc, ARC commutating side plate 302a and 302b gives prominence to downwards from the rear and front end portion of movable contact 130 along the direction back to a pair fixed contact 111,112.
For other formation, have the formation identical with aforesaid first execution mode, in Fig. 4 ~ Fig. 6, mark identical symbol with the corresponding part of Fig. 1 ~ Fig. 3, description is omitted.
Therefore, in the above-described 2nd embodiment, in the same manner as aforesaid first execution mode, under the open circuit initial state making movable contact 130 be separated with fixed contact 111,112, between the contact portion 130a and the contact portion 115 of a pair fixed contact 111,112 of movable contact 130, produce electric arc.
The arc root of this electric arc results between the smooth contact portion 130a of movable contact 130 and the contact portion 115 of a pair fixed contact 111,112, but along with two contact portion 130a and 115 be separated, move outside the Width of a pair fixed contact 111,112 and movable contact 130.
Then, when starting long to arc extinction space 145 or 146 layback by the magnetic flux of electromagnet 143 and 144, the arc root of the electric arc of movable contact 130 moves from the bight 130b of movable contact 130 in the downward side of front and back sides.Thereafter, commutate from the bight 130c of the downside of movable contact 130 to ARC commutating plate portion 133, the arc root of electric arc moves in the downward side of ARC commutating side plate 302a, 302b in ARC commutating plate portion 133, finally, arrive the bottom of ARC commutating side plate 302a, 302b, as shown in Figure 6, electric arc significantly elongates along the inwall in arc extinction space 145 or 146 and is extinguished.
Therefore, according to the second execution mode, by elongating arc, the arc root of electric arc can be made to commutate to ARC commutating plate portion 133 from movable contact 130, the consumption of movable contact can be suppressed.Its result, can extend the life-span of movable contact 130, can improve the reliability of electromagnetic contactor 10.
Should illustrate, in the above-described 2nd embodiment, also the central portion of the long side direction of the mounting plate portion 301 in removing ARC commutating plate portion 133 can be cut off, forming section by the mounting plate portion 301 of left and right end portions and ARC commutating side plate 302a, 302b is two groups of inverted U-shaped ARC commutating plate portions, these ARC commutating plate portions are fixed on individually movable contact 130 with fixing means such as screw, soldering, welding with a pair fixed contact 111,112 contrary sides.In this case, the action effect identical with above-mentioned second execution mode can be obtained.
In addition, in the above-described 2nd embodiment, similarly ARC commutating side plate 138a and 138b chimeric with the side of movable contact 130 can be formed in the upper surface side corresponding with ARC commutating side plate 302a and 302b of mounting plate portion 301 with aforesaid first execution mode.
In addition, in above-mentioned first execution mode and the second execution mode, the situation that ARC commutating plate portion and movable contact 130 are independently formed is illustrated, but is not limited thereto, also ARC commutating side plate 138a and 138b and movable contact 130 can be integrally formed.
In addition, in above-mentioned first execution mode and the second execution mode, situation electromagnet unit 200 to fixed iron core 211 and movable core 212 is illustrated, but be not limited thereto, also can omit fixed iron core 211, between top yoke 210 and movable core 212, form magnetic attraction portion.
In addition, as electromagnet unit 200, be also not limited to above-mentioned formation, arbitrary formation can also be adopted, as long as main points to drive movable contact 130 can contact relative to a pair fixed contact 111,112 and be separated.
In addition, in above-mentioned first execution mode and the second execution mode, form airtight container to being received shell 102 by contact and covering 230, the situation of enclosing gas in sealing container is illustrated, but be not limited thereto, also can omit the inclosure of gas when the electric current of cut-out is low.
Next, with reference to Fig. 7 ~ Fig. 9, the 3rd execution mode of the present invention is described.
In 3rd execution mode, adopt the mode replacing installing at movable contact ARC commutating plate portion in the mode in fixed contact installation ARC commutating plate portion.
That is, in the third embodiment, electromagnetic contactor 10 is formed as shown in Figure 7.
This electromagnetic contactor 10 is by being configured with the contact making device 400 of contact mechanism and driving the electromagnet unit 500 of this contact making device 400 to form.
As shown in Figure 7 and Figure 8, contact making device 400 has the storage of the contact as the arc control device shell 402 of storage contact mechanism 401.This contact storage shell 402 possesses the metal metal square tube body 404 in bottom with flange part 403 outstanding laterally and the fixed contact be made up of the flat ceramic insulation substrate of the upper end closing this metal square tube body 404 supports insulated substrate 405.
Metal square tube body 404 is fixed with the mode of top yoke 510 sealed engagement of electromagnet unit 500 described later by its flange part 403.
In addition, at fixed contact supporting insulated substrate 405, the through hole 406 and 407 that central portion inserts a pair fixed contact 411 and 412 described later is formed in keeping predetermined space.Further, at the upper surface soldering fixed contact supporting insulated substrate 405 of square tube body 404.
As shown in Figure 7, contact mechanism 401 possesses the through hole 406 and 407 of the fixed contact supporting insulated substrate 405 being inserted into contact storage shell 402 and fixing a pair fixed contact 411 and 412.These fixed contacts 411 and 412 possess the supporting conductor portion 414 in upper end with laterally outstanding flange part 413 of the through hole 406 and 407 being inserted into fixed contact supporting insulated substrate 405 respectively, and link with this supporting conductor portion 414 and be disposed in fixed contact and support the lower face side of insulated substrate 405 and the C-shaped portion 415 inside opening wide.
C-shaped portion 415 is formed as C-shaped by the lower board unit 418 supporting upper plate portion 416 that the lower surface of insulated substrate 405 extends laterally and the intermediate plate portion 417 extended from the outboard end of this upper plate portion 416 downwards along fixed contact, extend from lower end side and the upper plate portion 416 in this intermediate plate portion 417 opposite direction that is inwards fixed contact 411 and 412 abreast.
Herein, support conductor portion 414 and C-shaped portion 415 such as to be fixed by soldering the pin 414a of the outstanding formation in lower surface to supporting conductor portion 414 being inserted under the state in the through hole 420 be formed in the upper plate portion 416 in C-shaped portion 415.Should illustrate, supporting conductor portion 414 and C-shaped portion 415 be fixedly not limited to soldering, pin 414a also can be made chimeric with through hole 420, or pin 414a formation external screw thread, through hole 420 formed internal thread make both screw.
In addition, be that the magnetic plate 419 of C-shaped is to cover the medial surface in the intermediate plate portion 417 in the C-shaped portion 415 of fixed contact 411 and 412 during installation top view.Like this, covered the medial surface in intermediate plate portion 417 by configuration magnetic plate 419, the magnetic field produced by the electric current of circulation in intermediate plate portion 417 can be shielded.
This magnetic plate 419 also can be formed as covering intermediate plate portion 417 around, as long as can shield the magnetic field produced by the electric current of circulation in intermediate plate portion 417.
Further, the insulating lid 421 that restriction produces the synthetic resin material of electric arc is installed respectively in the C-shaped portion 415 of fixed contact 411 and 412.
Like this, by installing insulating lid 421 in the C-shaped portion 415 of fixed contact 411 and 412, thus on the inner peripheral surface in this C-shaped portion 415 only the upper surface side of lower board unit 418 expose and form contact portion 418a.
Then, movable contact 430 is arranged in the mode configuring both ends in the C-shaped portion 415 of fixed contact 411 and 412.The connection shaft 431 that this movable contact 430 is fixed in the movable plunger 515 of electromagnet unit 500 described later supports.As shown in Figure 7, for this movable contact 430, near the connection shaft 431 of central portion, form outstanding recess 432 downwards, be formed with the through hole 433 inserting connection shaft 431 at this recess 432.
Connection shaft 431 is formed with flange part 431a outstanding laterally in upper end.At this connection shaft 431 from contact spring 434 lower end side cover, then to be inserted into the through hole 433 of movable contact 430, the upper end of contact spring 434 abutted with flange part 431a and utilizes this contact spring 434 to obtain the mode of predetermined pushing force, such as, passing through C type back-up ring 435 by movable contact 430 fixed position.
In the off state, the contact portion 430a at two ends and fixed contact 411 keep the mode of predetermined space to be separated with the contact portion 418a of lower board unit 418 in the C-shaped portion 415 of 412 to this movable contact 430.In addition, movable contact 430 is set to by the predetermined contact that produced by contact spring 434, the contact portion 430a at two ends and fixed contact 411 be contacted with the contact portion 418a of lower board unit 418 in the C-shaped portion 415 of 412 on on-position.
Further, at the outer peripheral face of fore-and-aft direction of the square tube body 404 of contact storage shell 402, configure elongating arc as shown in Figure 8 and carry out the arc extinction permanent magnet 443 and 444 of arc extinguishing.
In addition, at the inner peripheral surface of the square tube body 404 of contact storage shell 402, as shown in Figure 7 and Figure 8, such as, the insulating cylinder body 440 being formed as end square tube shape by synthetic resin material is arranged.In this insulating cylinder body 440, be formed with arc extinction room 445 and 446 respectively at the front and back position of the opposed portion of the contact portion 418a of fixed contact 411 and 412 and the contact portion 418 of movable contact 430.
In addition, in the lower board unit 418 of fixed contact 411 and 412, be fixed with ARC commutating plate portion 450 in the lower face side of the contact portion 418a opposed with the contact portion 430a of movable contact 430.This ARC commutating plate portion 450 is formed by metal material such as iron, the stainless steel etc. of the melt temperature conductivity higher than a pair fixed contact 411 and 412.
As shown in Figure 8 and Figure 9, this ARC commutating plate portion 450 is formed as roughly inverted U-shaped by upper plate portion 451 with at the front and back side plate 452 and 453 that the rear ends of this upper plate portion 451 and the front and back sides of lower board unit 418 extend abreast downwards.
As shown in Figure 7, electromagnet unit 500 has the yoke 501 being viewed as flat U-shaped from the side, is fixed with cylindric auxiliary yoke 503 at the central portion of the base plate 502 of this yoke 501.Reel 504 is configured with in the outside of the auxiliary yoke 503 of this cylindrical shape.
This reel 504 is by central cylinder portion 505, the lower flange 506 outstanding to radial outside from the bottom in this central cylinder portion 505 inserted for cylindric auxiliary yoke 503 and the upper flange part 507 outstanding to radial outside is formed from the upper end of central cylindrical portion 505.Further, magnet exciting coil 508 is wound with at the accommodation space be made up of central cylinder portion 505, lower flange 506 and upper flange part 507.
Further, between the upper end of openend becoming yoke 501, top yoke 510 is fixed with.This top yoke 510 is formed with the through hole 510a opposed with the central cylinder portion 505 of reel 504 at central portion.
And in the central cylinder portion 505 of reel 504, be equipped bottom it and installed the movable plunger 515 of return spring 514 between the base plate 502 of yoke 501, movable plunger 515 can slide up and down.In this movable plunger 515, be formed in the upper end of giving prominence to upward from top yoke 510 to the outstanding all flange parts 516 of radial outside.
In addition, at the upper surface of top yoke 510, in the mode of all flange parts 516 surrounding movable plunger 515, to be fixed with such as profile be square and have the permanent magnet 520 that circular central opening 521 is formed as ring-type.Upper end side is such as magnetized to N pole at above-below direction and thickness direction by this permanent magnet 520, lower end side is magnetized to S pole.Should illustrate, the shape of the central opening 521 of permanent magnet 520 is made the shape corresponding with the shape of all flange parts 516, the shape of outer peripheral face can be formed as the arbitrary shape such as circular, square.
And, in the upper surface of permanent magnet 520, be fixed with identical with permanent magnet 520 profile and there is the auxiliary yoke 525 of the internal diameter through hole 524 less than the external diameter of all flange parts 516 of movable plunger 515.At the lower surface of this auxiliary yoke 525, abut all flange parts 516 having movable plunger 515.
In addition, be spirally connected in the upper surface of movable plunger 515 supporting movable contact 430 connection shaft 431.
And movable plunger 515 is made up of nonmagnetic material and the cover 530 being formed bottom tube-like covers, at the openend of this cover 530, extend to radial outside and the lower surface sealed engagement of the flange part 531 that formed and top yoke 510.Thus, arc control device 402 form with cover 530 airtight container be communicated with via the through hole 510a of top yoke 510.Further, in the airtight container formed by arc control device 402 and cover 530, enclose mist, air, the SF of hydrogen, nitrogen, hydrogen and nitrogen
6deng gas.
According to the 3rd execution mode, under the state that the magnet exciting coil 508 of electromagnet unit 500 is non-power status, return spring 514 is utilized to push movable plunger 515 upward.Therefore, as shown in Figure 7, all flange parts 516 of movable plunger 515 abut with the lower surface of auxiliary yoke 525, movable contact 430 from fixed contact 411 with 412 lower board unit 418 be separated upward.Therefore, the circuit between fixed contact 411 and 412 is in dissengaged positions, and contact mechanism 401 is in off state.
Like this, under the off-state of electromagnet unit 500, owing to having the active force of return spring 514 and both attractions of annular permanent magnnet 520 in movable plunger 515 effect, so movable plunger 515 can not decline because of unexpected from the vibration of outside and/or impact etc., reliably malfunction can be prevented.
From this off-state, when excitation is carried out to the magnet exciting coil 508 of electromagnet unit 500, in this electromagnet unit 500, produce excitation power, movable plunger 515 overcome the active force of return spring 514 and the attraction of annular permanent magnnet 520 and press downwards.
And the attraction of active force and annular permanent magnnet 520 that movable plunger 515 overcomes return spring 514 declines rapidly.Thus, the lower surface descending through all flange parts 516 of movable plunger 515 abuts with the upper surface of top yoke 510 and stops.
Like this, by making movable plunger 515 decline, thus also decline via the movable contact 430 that connection shaft 431 and movable plunger 515 link, the contact that its contact portion 430a passes through contact spring 434 and fixed contact 411 with 412 contact portion 418a contact.
Therefore, what the big current becoming external power supply source was supplied to load by fixed contact 411, movable contact 430 and fixed contact 412 closes pole state.
Close pole state from this contact mechanism 401, when cutting off to load supply electric current, stop the excitation of the magnet exciting coil 508 of electromagnet unit 500.
Thus, because make the excitation power of movable plunger 515 movement downwards disappear in electromagnet unit 500, so movable plunger 515 rises because of the active force of return spring 514, all flange parts 516 are close to auxiliary yoke 525, and the attraction of annular permanent magnnet 520 increases thereupon.
By making this movable plunger 515 rise, the movable contact 430 linked via connection shaft 431 rises.Correspondingly, during giving contact with contact spring 434, movable contact 430 contacts with 412 with fixed contact 411.Thereafter, when the contact of contact spring 434 disappears, the off state that movable contact 430 is separated upward from fixed contact 411 and 412 is become.
When becoming this off state, between the contact portion 418a and the contact portion 430a of movable contact 430 of fixed contact 411 and 412, produce electric arc, the "on" position of intermittent current by this electric arc.Now, owing to being provided with the upper plate portion 416 in C-shaped portion 415 and the insulating lid 421 in intermediate plate portion 417 that cover fixed contact 411 and 412, thus only electric arc can be produced between the contact portion 418a and the contact portion 430a of movable contact 430 of fixed contact 411 and 412.Therefore, it is possible to reliably prevent electric arc from moving in the C-shaped portion 415 of fixed contact 411 and 412, can the generation state of stable arc, can arc extinction performance be improved.Further, due to the two sides utilizing insulating lid 421 also to cover fixed contact 411 and 412, so also can reliably prevent the front end of electric arc to be short-circuited.
In addition, due to the upper plate portion 416 and the intermediate plate portion 417 that utilize insulating lid 421 to cover C-shaped portion 415, so insulation distance can be guaranteed by the both ends of movable contact 430 and the insulating lid 421 between the upper plate portion 416 in C-shaped portion 415 and intermediate plate portion 417, the height in the movable direction of movable contact 430 can be shortened.Therefore, it is possible to make contact making device 400 miniaturized.
In addition, the arc root of the electric arc produced between the contact portion 418a of fixed contact 411 and the 412 and contact portion 430a of movable contact 430 is elongated by arc extinction permanent magnet 444 as shown in Figure 8.Therefore, in movable contact 430 side, commutate 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, the arc root of electric arc commutates downwards along side, and the side plate 453 along ARC commutating plate portion 450 arrives lower end.
Its result, the arc root of electric arc does not contact with 412 with fixed contact 411, and the destruction of bringing because of electric arc is born in side by ARC commutating plate portion 450, the metal vapors that the arc root of reason electric arc can be suppressed to produce and the consumption of the fixed contact caused.Further, ARC commutating plate portion 450 is made up of, so more can suppress the consumption caused because of electric arc compared with fixed contact 411,412 than fixed contact 411,412 high metal partss such as iron, stainless steel melt temperature.Therefore, it is possible to extend the life-span of fixed contact 411,412, the reliability of electromagnetic contactor 10 can be improved.
Should illustrate, in the above-described 3rd embodiment, be illustrated, be not limited thereto the situation that ARC commutating plate portion 450 is formed as reverse U shape shape, also can be installed on lower board unit 418 as the roughly U-shaped of reversing up and down with Fig. 9.
In addition, as shown in figure 11, the mode that the mode directly forming ARC commutating plate portion 461 and 462 at lower board unit 418 also can be adopted to replace ARC commutating plate portion 450 to be formed separately.
In addition, as electromagnet unit 500, be not limited to above-mentioned formation, arbitrary formation can be adopted, as long as main points movable contact 430 can be contacted relative to a pair fixed contact 411,412 and drives discretely.
In addition, in the above-described 3rd embodiment, form airtight container to being received shell 402 by contact and covering 530, the situation of enclosing gas in sealing container is illustrated, but be not limited thereto, also can omit the inclosure of gas when the electric current of cut-out is low.
In addition, in above-mentioned first execution mode ~ the 3rd execution mode, the situation applying the present invention to electromagnetic contactor is illustrated, but is not limited thereto, also can apply the present invention at other electromagnetism shutter of electromagnetic relay etc.
Claims (6)
1. a contact making device, is characterized in that, possesses:
A pair fixed contact, is fixedly arranged in arc control device with keeping predetermined space;
Movable contact, can contact with described a pair fixed contact and be disposed in described arc control device discretely,
And, either party in described movable contact and described a pair fixed contact, form the ARC commutating plate portion of conductivity, described ARC commutating plate portion makes the arc root of the electric arc produced during open circuit commutate, wherein, open circuit refers to that described movable contact is separated with described a pair fixed contact.
2. contact making device according to claim 1, is characterized in that,
Described ARC commutating plate portion is formed by the metallic plate that melt temperature is higher than described movable contact.
3. contact making device according to claim 1 and 2, is characterized in that,
Described ARC commutating plate portion is made up of mounting plate portion and a pair ARC commutating side plate, described mounting plate portion contacts with same described a pair fixed contact opposite side of described movable contact, and have in the position opposed with described a pair fixed contact along leaving the direction bending of a pair fixed contact and the warpage extension extended, described a pair ARC commutating side plate extends from the warpage extension of this mounting plate portion in the mode of the side edge contact with described movable contact.
4. contact making device according to claim 1 and 2, is characterized in that,
Described ARC commutating plate portion is made up of mounting plate portion and a pair ARC commutating side plate, the surface contact of same described a pair fixed contact opposite side of described mounting plate portion and described movable contact, described a pair ARC commutating side plate is formed in the both sides of the edge of the position opposed with described a pair fixed contact of this mounting plate portion, and extends along the direction leaving described a pair fixed contact.
5. contact making device according to claim 1 and 2, is characterized in that,
Described a pair fixed contact is formed as C-shaped by upper plate portion, intermediate plate portion and lower board unit,
Described movable contact energy contacts with this lower board unit and is configured between described upper plate portion and lower board unit discretely,
On the surface of the same described movable contact opposite side of the lower board unit of described a pair fixed contact, be provided with ARC commutating plate portion.
6. an electromagnetism shutter, is characterized in that,
Possess the contact making device according to any one of described Claims 1 to 5, the movable core of described movable contact and electromagnet apparatus links, described a pair fixed contact and external connection terminal sub-connection.
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 true CN104718591A (en) | 2015-06-17 |
| CN104718591B CN104718591B (en) | 2017-08-25 |
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| 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) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111433879A (en) * | 2017-12-01 | 2020-07-17 | 三菱电机株式会社 | Contactor |
| CN112447450A (en) * | 2019-09-05 | 2021-03-05 | 富士电机机器制御株式会社 | Contact device and electromagnetic contactor |
| EP4261868A4 (en) * | 2020-12-09 | 2024-05-08 | Panasonic Intellectual Property Management Co., Ltd. | Contact apparatus and electromagnetic relay |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017159442A1 (en) * | 2016-03-14 | 2017-09-21 | 三菱電機株式会社 | Switch |
Family Cites Families (9)
| 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 |
| JP3321963B2 (en) * | 1994-02-22 | 2002-09-09 | 株式会社デンソー | Plunger type electromagnetic relay |
| 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 |
| JP2012043541A (en) * | 2010-08-12 | 2012-03-01 | Fuji Electric Fa Components & Systems Co Ltd | Circuit breaker |
| JP5727862B2 (en) * | 2011-05-19 | 2015-06-03 | 富士電機機器制御株式会社 | Magnetic contactor |
| 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 |
| JP5990028B2 (en) * | 2012-04-13 | 2016-09-07 | 富士電機機器制御株式会社 | Contact device and electromagnetic switch using the same |
-
2013
- 2013-10-31 KR KR1020157008641A patent/KR101698421B1/en active IP Right Grant
- 2013-10-31 JP JP2014550895A patent/JP5990281B2/en active Active
- 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
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111433879A (en) * | 2017-12-01 | 2020-07-17 | 三菱电机株式会社 | Contactor |
| CN111433879B (en) * | 2017-12-01 | 2022-02-18 | 三菱电机株式会社 | Contactor |
| CN112447450A (en) * | 2019-09-05 | 2021-03-05 | 富士电机机器制御株式会社 | Contact device and electromagnetic contactor |
| EP4261868A4 (en) * | 2020-12-09 | 2024-05-08 | Panasonic Intellectual Property Management Co., Ltd. | Contact apparatus and electromagnetic relay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104718591B (en) | 2017-08-25 |
| KR101698421B1 (en) | 2017-01-20 |
| JP5990281B2 (en) | 2016-09-07 |
| WO2014087574A1 (en) | 2014-06-12 |
| JPWO2014087574A1 (en) | 2017-01-05 |
| KR20150053944A (en) | 2015-05-19 |
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