CN203573859U - Arc blowing type motor starter - Google Patents
Arc blowing type motor starter Download PDFInfo
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- CN203573859U CN203573859U CN201320654591.5U CN201320654591U CN203573859U CN 203573859 U CN203573859 U CN 203573859U CN 201320654591 U CN201320654591 U CN 201320654591U CN 203573859 U CN203573859 U CN 203573859U
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- 239000007858 starting material Substances 0.000 title claims abstract description 47
- 238000007664 blowing Methods 0.000 title claims abstract description 31
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract 13
- 238000010891 electric arc Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 12
- 230000005672 electromagnetic field Effects 0.000 description 8
- 230000000171 quenching effect Effects 0.000 description 8
- 230000006378 damage Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000002679 ablation Methods 0.000 description 3
- 230000005405 multipole Effects 0.000 description 3
- 208000002925 dental caries Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
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Abstract
An arc blowing type motor starter comprises a box body structure, and a base and a shell seat are fixedly connected to form the box body structure. An arc-extinguishing device and a contact device are installed in each of multiple sub cavities; each contact device comprises a bridge-shaped moving contact assembly installed on the base and a left static contact with a left static contact point and a right static contact with a right static contact point, and the left static contact and the right static contact are fixed to the shell seat; each arc-extinguishing device comprises a left arc-extinguishing chamber and a right arc-extinguishing chamber which are symmetrically arranged in each sub cavity, and an opening of each left arc-extinguishing chamber and an opening of each right arc-extinguishing chamber are arranged in a manner that the openings of the left and right arc-extinguishing chambers respectively face connected/disconnected cooperation areas of left and right moving contact points and the left and right static contact points. Each arc-extinguishing device further comprises a left upper arc-blowing plate and a right upper arc-blowing plate, the left upper arc-blowing plate is arranged between the left static contact and the shell seat, the right upper arc-blowing plate is arranged between the right static contact and the shell seat, the left upper arc-blowing plate is arranged in a manner that the left upper arc-blowing plate is located on and abuts against the upper surface, which is not the surface where the left static contact point is fixed, of the left static contact, and the right upper arc-blowing plate is arranged in a manner that the right upper arc-blowing plate is located on and abuts against the upper surface, which is not the surface where the right static contact point is fixed, of the right static contact.
Description
Technical field
The utility model relates to alternating current machine starter, is specifically related to a kind of motor starter with arc blow-out function.
Background technology
AC motor starter is a kind of for controlling the start/stop electrical equipment of alternating current motor, yet the continuous expansion along with function, modern motor starter except basic for controlling the switching function of electric motor starting/stop, also require to increase for safeguard protection and control other functions such as electric machine operating characteristic, require motor starter can have concurrently in circuit for controlling motor as the function of other electrical equipment such as circuit breaker, following safety protection function for example: in motor starter accesses protected circuit, flow through and load same current, when load overload or the phase time that breaks, bimetal leaf is heated to certain crooked stroke or drives starter mechanism to thread off by its differential attachment, thereby open-circuit line plays a protective role, when load short circuits, the flow through coil of starter inside of short circuit current, drives instantaneous operation driving mechanism unshakable in one's determination to thread off, thereby plays a protective role.The prime design requirement of modern AC motor starter at least should comprise following content.The kinematic accuracy of the movement parts of Yi Shige mechanism and Reliability of Microprocessor not only will meet can frequent starting/basic demand that stops; but also accuracy of action, reliability requirement are protected in the automatic dropout that will meet starter; and; this accuracy, reliability should have the ability of enough resistance internal and external environments to its destruction, the malfunctioning or inefficacy that wherein destructive factor of internal environment moves as electric arc, the automatic protection of threading off etc.The 2nd, electrical connection should possess the contact characteristics of good, stable energising characteristic, particularly contact; The 3rd, should possess enough breaking capacity, be wherein not only included in the reliable and stable breaking capacity in large electric current (particularly short circuit current) situation, but also should be included in the normal breaking capacity in the slight ablation adhesion of contact situation.The 4th, should possess reliable strong arc extinguishing ability, to promote the performance index such as safe class, useful life and the scope of application of starter product.
The patent No. is that 200820215433.9 Chinese utility model patent discloses a kind of Switchgear device, although be wherein provided with arc control device and run-on tab, but arc blow-out structure is not set, design feature due to movable bridge-shaped contact, movable bridge-shaped contact, the parts such as contact spring need be arranged in the seat chamber between two arc control device, and without arc blow-out in the situation that, it is serious that electric arc flies to channel in a chamber parts problem, and these electric arcs that fly to alter are owing to can not entering arc control device, so time that need to be longer just can extinguish, thereby not only make the breaking capacity of contact decline, but also cause the damage of very easily losing efficacy of parts in a chamber.In addition, without arc blow-out in the situation that, the speed ratio that electric arc enters arc control device is slower, therefore affect speed and the efficiency of arc extinguishing, arc quenching effect is undesirable, thereby has limited the breaking capacity of contact, particularly when the large electric current of disjunction (overload current, short circuit current), arcing is serious for the ablation of the parts of starter inside, thereby affects reliability and the useful life of starter product.
Known based on Electric contact theory, the motor that motor starter is controlled is perceptual class load, if the breaking speed of contact is too fast, motor can produce very large overvoltage, superpotential generation, may puncture the arc gap between moving contact and fixed contact on the one hand, electric arc is burnt away, extend the arcing time, may, by the insulation breakdown of starter, cause malicious event on the other hand, therefore, the instructions for use of motor starter has determined that its breaking speed can not be too fast.Yet, the essence that breaking speed slows down is also to extend the arcing time, that is to say, the instructions for use of motor starter has determined it, and limit of the shortest arcing time can not be very short, why very limited the breaking capacity of above-mentioned existing Switchgear device is, is mainly that it fails effectively to break through the restriction for breaking capacity by the overvoltage between the contact due to the instructions for use of motor starter.
Utility model content
In order to overcome the defect of above-mentioned prior art, the utility model aims to provide a kind of arc blowing type motor starter, by increasing arc blow-out structure at each utmost point, to shorten the arcing time, reducing electric arc flies outward to alter at arc control device, prevent the destruction of electric arc to internal structure, promote the breaking capacity of contact apparatus, extend the useful life of product.
To achieve these goals, the utility model has adopted following scheme.
According to a kind of a kind of arc blowing type motor starter of execution mode, comprise by a base 1 and a body structure that shell block 100 is fixedly connected to form, a plurality of sub-cavity 10 being provided with in this body structure, arc-control device 20 and the contact apparatus 30 of an electrode are housed in every sub-cavity 10, the contact apparatus 30 of each electrode comprises the bridge shape moving contact component 301 being arranged on base 1 and is separately fixed at the left fixed contact 5 with left fixed contact 51 on shell block 100 and with the right fixed contact 6 of right fixed contact 61, the arc-control device 20 of each utmost point is included in the interior symmetrically arranged left arc control device 8 of sub-cavity 10 and right arc control device 9, and left arc control device 8, the opening of right arc control device 9 is all towards left moving contact 41, right moving contact 42 respectively with left fixed contact 51, the region division that right fixed contact 61 closures/disjunction coordinates, it is characterized in that: described arc-control device 20 also comprises the upper left arc blow-out plate 11 being arranged between left fixed contact 5 and shell block 100 and is arranged on the upper right arc blow-out plate 12 between right fixed contact 6 and shell block 100, described upper left arc blow-out plate 11 is positioned on the upper surface left fixed contact 5 and the left fixed contact 51 place faces of on-fixed of contact apparatus 30, and this upper surface near left fixed contact 5 arranges, described upper right arc blow-out plate 12 is positioned on the upper surface right fixed contact 61 and the right fixed contact 61 place faces of on-fixed of contact apparatus 30, and this upper surface near right fixed contact 6 arranges, to make region that left moving contact 41 coordinates with left fixed contact 51 closures/disjunction in sub-cavity 10 below upper left arc blow-out plate 11, make region that right moving contact 42 coordinates with right fixed contact 61 closures/disjunction in arc blow-out plate 12 belows, upper right.
Further, described arc-control device 20 also comprises left front arc blow-out plate 13 and the right front arc blow-out plate 14 on the front shell wall 1a that is arranged on base 1 and is arranged on left back arc blow-out plate 15 and the right back arc blow-out plate 16 on the rear shell wall 1b of base 1, and, the track that described left moving contact 41 moves up and down is in the sub-cavity 10 between left front arc blow-out plate 13 and left back arc blow-out plate 15, and the track that right moving contact 42 moves up and down is in the sub-cavity 10 between right front arc blow-out plate 14 and right back arc blow-out plate 16.
Preferably, described upper left arc blow-out plate 11, upper right arc blow-out plate 12 are separately fixed on left fixed contact 5, right fixed contact 6.
Preferably, described upper left arc blow-out plate 11 and upper right arc blow-out plate 12 all adopt magnetic conduction type arc blow-out plate.
Further, described arc-control device 20 also comprises the arc striking piece 17 in the sub-cavity 10 that is arranged on base 1, the two ends of arc striking piece 17 respectively with the bottom of left arc control device 8, the bottom retention gap of right arc control device 9.
Further, described left fixed contact 5 is provided with the left striking portion 52 of stretching to left arc control device 8 tops, and right fixed contact 6 is provided with the right striking portion 62 of stretching to right arc control device 9 tops.
Further, the bridge shape moving contact 4 of described bridge shape moving contact component 301 is provided with the left arc leading angle 43 and the right arc leading angle 44 that stretches to the opening part of right arc control device 9 of the opening part that stretches to left arc control device 8.
According to a kind of arc blowing type motor starter of another kind of execution mode, comprise by a base 1 and a body structure that shell block 100 is fixedly connected to form, a plurality of sub-cavity 10 being provided with in this body structure, arc-control device 20 and the contact apparatus 30 of an electrode are housed in every sub-cavity 10, the contact apparatus 30 of each electrode comprises the bridge shape moving contact component 301 being arranged on base 1 and is separately fixed at the left fixed contact 5 with left fixed contact 51 on shell block 100 and with the right fixed contact 6 of right fixed contact 61, the arc-control device 20 of each utmost point is included in the interior symmetrically arranged left arc control device 8 of sub-cavity 10 and right arc control device 9, and left arc control device 8, the opening of right arc control device 9 is all towards left moving contact 41, right moving contact 42 respectively with left fixed contact 51, the region division that right fixed contact 61 closures/disjunction coordinates, it is characterized in that: described arc-control device 20 also comprises left front arc blow-out plate 13 and the right front arc blow-out plate 14 on the front shell wall 1a that is arranged on base 1 and is arranged on left back arc blow-out plate 15 and the right back arc blow-out plate 16 on the rear shell wall 1b of base 1, and, the track that described left moving contact 41 moves up and down is in the sub-cavity 10 between left front arc blow-out plate 13 and left back arc blow-out plate 15, the track that right moving contact 42 moves up and down is in the sub-cavity 10 between right front arc blow-out plate 14 and right back arc blow-out plate 16.
Preferably, described left front arc blow-out plate 13, right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16 are fixedly mounted on respectively in 4 mounting grooves 18 on the upper and rear shell wall 1b of the front shell wall 1a of base 1.
Preferably, described left front arc blow-out plate 13, right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16 all adopt magnetic conduction type arc blow-out plate.
The breaking capacity of this lifting motor starter of destruction problem that the utility model brought for the arcing time by growing, useful life and fail safe, reliability, the key of stability, employing arranges a plurality of sub-cavitys in base, arc-control device and the contact apparatus of a utmost point are set in every sub-cavity, the arc-control device of each utmost point is provided with the structure of two of left and right arc control device 8 and arc blow-out plate, on motor starter, realized the multiple arc quenching method that comprises electromagnetism arc blow-out, electric arc is blown into arc control device, electric arc is concentrated on have in the arc extinguishing of anti-ablation ability divided, cooling, extinguish, arcing is reduced to minimum degree to the destruction of parts in the seat chambeies such as contact, make motor starter there is high safety reliability.
Accompanying drawing explanation
The structure of each electrode unit of arc blowing type motor starter is identical, and the following drawings only shows the structure of one of them utmost point.
Fig. 1 is the planar structure schematic diagram of the first embodiment of arc blowing type motor starter of the present utility model, and the first embodiment shown in figure comprises upper left arc blow-out plate 11 and upper right arc blow-out plate 12.
Fig. 2 is A-A cutaway view of Fig. 1, there is shown the structure of the left front arc blow-out plate 13 of arc-control device 20, right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16.
Fig. 3 is the partial structurtes schematic diagram that comprises contact apparatus 30 of the second embodiment of arc blowing type motor starter of the present utility model, and the second embodiment shown in figure does not arrange upper left arc blow-out plate 11 and upper right arc blow-out plate 12.
Fig. 4 is the B partial enlarged drawing of Fig. 1, there is shown a kind of mounting structural mode of left front arc blow-out plate 13.
Embodiment
The embodiment providing below in conjunction with accompanying drawing 1 to 4, further illustrates the embodiment of arc blowing type motor starter of the present utility model.The description that is not limited to following three kinds of typical specific embodiments of arc blowing type motor starter of the present utility model.
The first execution mode of arc blowing type motor starter of the present utility model as depicted in figs. 1 and 2, the second execution mode as shown in Figures 2 and 3, Fig. 4 is the B partial enlarged drawing of Fig. 1, there is shown a kind of mounting structural mode of left front arc blow-out plate 13, the mounting structure of remaining right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16 and the mounting structure of the left front arc blow-out plate 13 shown in Fig. 4 are roughly the same.The feature of the first execution mode is that arc-control device 20 is provided with upper left arc blow-out plate 11, upper right arc blow-out plate 12, left front arc blow-out plate 13, right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16, its arc blow-out function is the strongest, and A-A cutaway view of Fig. 2 is applicable to the first embodiment and the second embodiment.The feature of the second embodiment is that arc-control device 20 is provided with left front arc blow-out plate 13, right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16, but upper left arc blow-out plate 11 and upper right arc blow-out plate 12 are not set, though its arc blow-out function is not as the first execution mode, but still thering is obvious arc blow-out effect, the contact apparatus 30 of the second embodiment shown in Fig. 3 is identical with the first embodiment shown in Fig. 1.The 3rd execution mode is only provided with upper left arc blow-out plate 11 and upper right arc blow-out plate 12, but do not establish left front arc blow-out plate 13, right front arc blow-out plate 14, left back arc blow-out plate 15, right back arc blow-out plate 16, it is strong that its arc blow-out function is not so good as the first execution mode, but still have obvious arc blow-out effect.
Arc blowing type motor starter of the present utility model comprises a base 1 and a shell block 100 of the formation body structure that can be mutually permanently connected, motor starter is a kind of multipole switch electrical equipment, its number of poles has two kinds conventionally: a kind of is 2 utmost points, be used for controlling single-phase motor, another kind is 3 utmost points, be used for controlling threephase motor, base 1, shell block 100 is respectively multipole public parts, on base 1, be provided with arc-control device 20 and the contact apparatus 30 of each utmost point, on shell block 100, be provided with a multipole public operating mechanism (not shown), each utmost point and a pair of moving contact movable bridge-shaped contact can divide/close coordinate a pair of silently 5, 6 and the trip gear of each utmost point (as overcurrent trip, short-circuit release, not shown).Shell block 100 comprises with the body structure that base 1 is fixedly connected to form the box shape being surrounded by the front shell wall 1a of base 1, rear shell wall 1b, left shell wall 1c, right shell wall 1d, drain pan wall 1e and shell block 100, in described body structure, be provided with a plurality of sub-cavitys 10, arc-control device 20 and the contact apparatus 30 of a utmost point is housed in every sub-cavity 10.Described contact apparatus 30 comprises the bridge shape moving contact component 301 that is arranged on base 1, is separately fixed at left fixed contact 5 and right fixed contact 6 on shell block 100.Bridge shape moving contact component 301 comprises carrier base 2, contact support 3, bridge shape moving contact 4 and compression spring 7, carrier base 2 is fixed on the drain pan wall 1e of the base 1 in sub-cavity 10, contact support 3 is arranged on carrier base 2 in mode moving up and down, the mode that bridge shape moving contact 4 compresses with contact and contact support 3 are set up and are connected, and the two ends of compression spring 7 are connected with bridge shape moving contact 4, carrier base 2 respectively.Bridge shape moving contact 4 is provided with left moving contact 41 and right moving contact 42, left fixed contact 5 is provided with left fixed contact 51, right fixed contact 6 is provided with right fixed contact 61, and left moving contact 41 coordinates with left fixed contact 51 closures/disjunction, and right moving contact 42 coordinates with right fixed contact 61 closures/disjunction.When operating mechanism (not shown) applies downward operating physical force to contact support 3, contact support 3 moves down under the effect of operating physical force, and the elastic force that overcomes compression spring 7 orders about bridge shape moving contact 4 and moves down, make left moving contact 41 on bridge shape moving contact 4, right moving contact 42 respectively with left fixed contact 51,61 disjunctions of right fixed contact; When operating mechanism removes when contact is supported to 3 operating physical force, bridge shape moving contact 4 moves up under the elastic force effect of compression spring 7, and when driving contact support 3 to move up, drive left moving contact 41, right moving contact 42 on it to move up, until left moving contact 41, right moving contact 42 respectively with left fixed contact 51, right fixed contact 61 closures.For this type of small-sized contact apparatus, under the present situation without striking, arc blow-out, the electric arc being caused by the action of closure/disjunction mainly comprises two kinds: a kind of is arc column between moving contact and fixed contact, and it should appear near described track; Another kind is arcing, and it should be mainly altered near outwards the flying of closure/disjunction cooperation place of moving contact and fixed contact.The function of effectively striking, arc blow-out, is to push the arc column between moving contact and fixed contact to arc control device on the one hand, is to push the arcing of moving contact and fixed contact closure/disjunction cooperation place to arc control device on the other hand.For this reason, arc-control device 20 of the present utility model comprises left arc control device 8 and the right arc control device 9 that the identical and centering of structure arranges, and comprises a plurality ofly having top, bottom and for sucking the arc extinguishing grid pieces parts (not shown) of the opening of electric arc.Except left arc control device 8 and right arc control device 9, described arc-control device 20 also comprises the arc striking piece 17 in the sub-cavity 10 being arranged on base 1, the two ends of arc striking piece 17 respectively with the bottom of left arc control device 8, the bottom retention gap of right arc control device 9, by arc striking piece 17, be conducive to make left arc control device 8 and right arc control device 9 can form the electromagnetic field that attraction electric arc enters described opening.Described left fixed contact 5 is provided with the left striking portion 52 of stretching to left arc control device 8 tops, and right fixed contact 6 is provided with the right striking portion 62 of stretching to right arc control device 9 tops, and its object is also to strengthen and attracts electric arc from opening, to enter the effect of arc control device.Although the top of left arc control device 8 is stretched in left striking portion 52, do not contact with left arc control device 8, in like manner, although the top of right arc control device 9 is stretched in right striking portion 62, do not contact with right arc control device 9.Described bridge shape moving contact 4 is provided with the left arc leading angle 43 of the opening part that stretches to left arc control device 8 and stretches to the right arc leading angle 44 of the opening part of right arc control device 9, and its object is also to strengthen and attracts electric arc from opening, to enter the effect of arc control device.Although left arc leading angle 43 stretches to the opening part of left arc control device 8, do not contact all the time with left arc control device 8, in like manner, although right arc leading angle 44 stretches to the opening part of right arc control device 9, do not contact all the time with right arc control device 9.
According to the first execution mode shown in Fig. 1, described arc-control device 20 also comprises the upper left arc blow-out plate 11 that is arranged between left fixed contact 5 and shell block 100, is arranged on the upper right arc blow-out plate 12 between right fixed contact 6 and shell block 100.Wherein said upper left arc blow-out plate 11 be positioned at the left fixed contact 51 of contact apparatus 30 and the link position of left fixed contact 5 above, described upper left arc blow-out plate 11 is positioned on the upper surface left fixed contact 5 and the left fixed contact 51 place faces of on-fixed of contact apparatus 30, and arranges near this upper surface of left fixed contact 5; That is: upper left arc blow-out plate 11 is near left fixed contact 5, at the lower surface of the left fixed contact 5 near position, left fixed contact 51 is set, and the below of left fixed contact 51 is exactly the opening part of left arc control device 8, and this opening part is in sub-cavity 10.Described upper right arc blow-out plate 12 is positioned on the upper surface right fixed contact 61 and the right fixed contact 61 place faces of on-fixed of contact apparatus 30, and this upper surface near right fixed contact 6 arranges, to make region that left moving contact 41 coordinates with left fixed contact 51 closures/disjunction in sub-cavity 10 below upper left arc blow-out plate 11, make region that right moving contact 42 coordinates with right fixed contact 61 closures/disjunction in arc blow-out plate 12 belows, upper right.That is: upper right arc blow-out plate 12 is near right fixed contact 6, at the lower surface of the right fixed contact 6 near position, right fixed contact 61 is set, and the below of right fixed contact 61 is exactly the opening part of right arc control device 9, and this opening part is in sub-cavity 10.Described herein near, refer to close to the very little degree of gapless or gap because arc blow-out plate and fixed contact lean on closelyer, flow through the electromagnetic field that the electric current of fixed contact produces by arc blow-out plate stronger, the arc blow-out effect that this electromagnetic field produces is better.Obviously, such setting of upper left arc blow-out plate 11, upper right arc blow-out plate 12, extremely be conducive to make upper left arc blow-out plate 11, upper right arc blow-out plate 12 to produce the electromagnetic field that arc blow-out is used, and be conducive to the arcing of moving contact and fixed contact closure/disjunction cooperation place to be blown into the opening of arc control device.Left moving contact 41 on the bridge shape moving contact 4 of described contact apparatus 30, right moving contact 42 coordinate with left fixed contact 51, right fixed contact 61 closures/disjunction respectively, in the sub-cavity 10 of the opening part of the left arc control device 8 of the track moving up and down of left moving contact 41 in arc blow-out plate 11 belows, upper left, in the sub-cavity 10 of the opening part of the right arc control device 9 of the track moving up and down of right moving contact 42 in arc blow-out plate 12 belows, upper right.Obviously, the position relationship of the track that upper left arc blow-out plate 11, upper right arc blow-out plate 12 move up and down with left moving contact 41 respectively, the track that right moving contact 42 moves up and down, the electromagnetic field that is conducive to arc blow-out plate is produced is blown into arc control device by arc column.Particularly the in the situation that of disjunction overload current, short circuit current, upper left arc blow-out plate 11, upper right arc blow-out plate 12 structure and they are set respectively and the positional structure of left moving contact 41, right moving contact 42, they respectively and the feature of the position relationship between track of moving up and down of left moving contact 41, right moving contact 42, their position relationships respectively and between the opening of the opening of left arc control device 8, right arc control device 9, for the burning time, the prevention arcing that shorten electric arc, run helter-skelter, arcing and arc column are pushed to arc control device fast, have a significant effect.Described upper left arc blow-out plate 11, the fixed structure of upper right arc blow-out plate 12 can have various ways, as be fixed on mode on shell block 100, be fixed on the mode on fixed contact, but from the factor near installing, a kind of preferred mode is: described upper left arc blow-out plate 11, upper right arc blow-out plate 12 are separately fixed on left fixed contact 5, right fixed contact 6, be that upper left arc blow-out plate 11 is fixed on left fixed contact 5, upper right arc blow-out plate 12 is fixed on right fixed contact 6.Described upper left arc blow-out plate 11 and the type of upper right arc blow-out plate 12 can be multiple, as aerogenesis type, permanent magnetism, magnetic conduction type, so-called magnetic conduction type arc blow-out plate, be the member made from good permeability magnetic material, itself is not with magnetic, aerogenesis not, and its utilizes the electromagnetic field that arranges in place and by short circuit current or overload current, its is produced to obtain desirable arc blow-out effect.Should understand, whether the actual arc blow-out effect of magnetic conduction type arc blow-out plate is also suitable relevant with the position of its setting.But from the resultant effect of manufacturing cost and arc blow-out, consider, for motor starter, preferably adopt magnetic conduction type arc blow-out plate, it has simple in structure, cheap, effect stability, is easy to assembling, can the fine arc extinguishing requirement that meets motor starter.
In order further to strengthen arc blow-out, arc quenching effect, the arc-control device 20 of the first execution mode also comprises left front arc blow-out plate 13 and right front arc blow-out plate 14 on the front shell wall 1a that is arranged on base 1, be arranged on left back arc blow-out plate 15 and right back arc blow-out plate 16 on the rear shell wall 1b of base 1.The track that described left moving contact 41 moves up and down is in the cavity 10 between left front arc blow-out plate 13 and left back arc blow-out plate 15.The track that described right moving contact 42 moves up and down is in the cavity 10 between right front arc blow-out plate 14 and right back arc blow-out plate 16.Described left front arc blow-out plate 13, right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16 all adopt magnetic conduction type arc blow-out plate.Although left front arc blow-out plate 13, right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16 are not to lean on very closely with moving contact, fixed contact, but the in the situation that of short circuit current, they still can produce the electromagnetic field that blows arc column and arcing, particularly, the in the situation that of said structure feature, there is equally good arc blow-out, arc quenching effect.The fixed structure of left front arc blow-out plate 13, right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16 can have multiple, a kind of preferred frame mode is: described is provided with 4 mounting grooves 18 on the front shell wall 1a of base 1 He on rear shell wall 1b, and left front arc blow-out plate 13, right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16 are fixedly mounted on respectively in 4 mounting grooves 18.
According to the second execution mode shown in Fig. 3, described arc-control device 20 is different from the first execution mode part and is: though it comprise left front arc blow-out plate 13 and the right front arc blow-out plate 14 on the front shell wall 1a that is arranged on base 1 and be arranged on left back arc blow-out plate 15 and the right back arc blow-out plate 16 on the rear shell wall 1b of base 1, do not comprise upper left arc blow-out plate 11, upper right arc blow-out plate 12.Under the second execution mode: the track that described left moving contact 41 moves up and down is in the cavity 10 between left front arc blow-out plate 13 and left back arc blow-out plate 15, the track that described right moving contact 42 moves up and down is in the cavity 10 between right front arc blow-out plate 14 and right back arc blow-out plate 16; Described left front arc blow-out plate 13, right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16 all adopt magnetic conduction type arc blow-out plate; Described left front arc blow-out plate 13, right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16 are fixedly mounted on respectively in 4 mounting grooves 18 on the upper and rear shell wall 1b of the front shell wall 1a of base 1.Obviously, because left front arc blow-out plate 13, right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16 are not to lean on very closely with moving contact, fixed contact, so its arc blow-out, arc quenching effect are not as the first execution mode, but the in the situation that of short circuit current, they still can produce the electromagnetic field that is enough to blow arc column and arcing, particularly the in the situation that of said structure feature, also can the obvious arc blow-out of fine performance, arc quenching effect.
According to the 3rd execution mode of the present utility model, described arc-control device 20 is different from the first execution mode part and is: though it comprise the upper left arc blow-out plate 11 being arranged between left fixed contact 5 and shell block 100 and be arranged on the upper right arc blow-out plate 12 between right fixed contact 6 and shell block 100, do not comprise left front arc blow-out plate 13 and the right front arc blow-out plate 14 on the front shell wall 1a that is arranged on base 1 and be arranged on left back arc blow-out plate 15 and the right back arc blow-out plate 16 on the rear shell wall 1b of base 1.Under the 3rd execution mode, upper left arc blow-out plate 11 be positioned at the left fixed contact 51 of contact apparatus 30 and the link position of left fixed contact 5 above, described upper left arc blow-out plate 11 is positioned on the upper surface left fixed contact 5 and the left fixed contact 51 place faces of on-fixed of contact apparatus 30, and arranges near this upper surface of left fixed contact 5; Described upper right arc blow-out plate 12 be positioned at the right fixed contact 61 of contact apparatus 30 and the link position of right fixed contact 6 above, described upper right arc blow-out plate 12 is positioned on the upper surface right fixed contact 61 and the right fixed contact 61 place faces of on-fixed of contact apparatus 30, and this upper surface near right fixed contact 6 arranges, to make region that left moving contact 41 coordinates with left fixed contact 51 closures/disjunction in sub-cavity 10 below upper left arc blow-out plate 11, make region that right moving contact 42 coordinates with right fixed contact 61 closures/disjunction in arc blow-out plate 12 belows, upper right.Left moving contact 41 on the bridge shape moving contact 4 of described contact apparatus 30, right moving contact 42 coordinate with left fixed contact 51, right fixed contact 61 closures/disjunction respectively, in the sub-cavity 10 of the opening part of the left arc control device 8 of the track moving up and down of left moving contact 41 in arc blow-out plate 11 belows, upper left, in the sub-cavity 10 of the opening part of the right arc control device 9 of the track moving up and down of right moving contact 42 in arc blow-out plate 12 belows, upper right.Owing to there is no the humidification of left front arc blow-out plate 13, right front arc blow-out plate 14, left back arc blow-out plate 15 and right back arc blow-out plate 16, so the arc blow-out of the 3rd execution mode, arc quenching effect are not as the first execution mode, but in the situation of said structure feature, also can also good arc blow-out, the arc quenching effect of fine performance.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. an arc blowing type motor starter, comprise the body structure being fixedly connected to form by a base (1) and a shell block (100), a plurality of sub-cavity (10) being provided with in this body structure, arc-control device (20) and the contact apparatus (30) of an electrode are housed in every sub-cavity (10), the contact apparatus of each electrode (30) comprises the bridge shape moving contact component (301) being arranged on base (1) and is separately fixed at the left fixed contact (5) with left fixed contact (51) on shell block (100) and with the right fixed contact (6) of right fixed contact (61), the arc-control device of each utmost point (20) is included in symmetrically arranged left arc control device (8) and right arc control device (9) in sub-cavity (10), and left arc control device (8), the opening of right arc control device (9) is all towards left moving contact (41), right moving contact (42) respectively with left fixed contact (51), the region division that right fixed contact (61) closure/disjunction coordinates, it is characterized in that:
Described arc-control device (20) also comprise be arranged on the upper left arc blow-out plate (11) between left fixed contact (5) and shell block (100) and be arranged on right fixed contact (6) and shell block (100) between upper right arc blow-out plate (12), described upper left arc blow-out plate (11) is positioned on the upper surface left fixed contact (5) and the left fixed contact of on-fixed (51) place face of contact apparatus (30), and arranges near this upper surface of left fixed contact (5); Described upper right arc blow-out plate (12) is positioned on the upper surface right fixed contact (61) and the right fixed contact of on-fixed (61) place face of contact apparatus (30), and this upper surface near right fixed contact (6) arranges, to make region that left moving contact (41) coordinates with left fixed contact (51) closure/disjunction in upper left arc blow-out plate (11) below in sub-cavity (10), make region that right moving contact (42) coordinates with right fixed contact (61) closure/disjunction below upper right arc blow-out plate (12).
2. arc blowing type motor starter according to claim 1, is characterized in that:
Described arc-control device (20) also comprises left front arc blow-out plate (13) and the right front arc blow-out plate (14) on the front shell wall (1a) that is arranged on base (1) and is arranged on left back arc blow-out plate (15) and the right back arc blow-out plate (16) on the rear shell wall (1b) of base (1), and, the track that described left moving contact (41) moves up and down is in the sub-cavity (10) between left front arc blow-out plate (13) and left back arc blow-out plate (15), the track that right moving contact (42) moves up and down is in the sub-cavity (10) between right front arc blow-out plate (14) and right back arc blow-out plate (16).
3. arc blowing type motor starter according to claim 1 and 2, is characterized in that: described upper left arc blow-out plate (11), upper right arc blow-out plate (12) are separately fixed on left fixed contact (5), right fixed contact (6).
4. arc blowing type motor starter according to claim 1 and 2, is characterized in that: described upper left arc blow-out plate (11) and upper right arc blow-out plate (12) all adopt magnetic conduction type arc blow-out plate.
5. arc blowing type motor starter according to claim 1 and 2, it is characterized in that: described arc-control device (20) also comprises the arc striking piece (17) being arranged in the sub-cavity (10) of base (1), the two ends of arc striking piece (17) respectively with the bottom retention gap of the bottom of left arc control device (8), right arc control device (9).
6. arc blowing type motor starter according to claim 1 and 2, it is characterized in that: described left fixed contact (5) is provided with the left striking portion (52) of stretching to left arc control device (8) top, right fixed contact (6) is provided with the right striking portion (62) of stretching to right arc control device (9) top.
7. arc blowing type motor starter according to claim 1 and 2, is characterized in that: the bridge shape moving contact (4) of described bridge shape moving contact component (301) is provided with the left arc leading angle (43) of the opening part that stretches to left arc control device (8) and stretches to the right arc leading angle (44) of the opening part of right arc control device (9).
8. an arc blowing type motor starter, comprise the body structure being fixedly connected to form by a base (1) and a shell block (100), a plurality of sub-cavity (10) being provided with in this body structure, arc-control device (20) and the contact apparatus (30) of an electrode are housed in every sub-cavity (10), the contact apparatus of each electrode (30) comprises the bridge shape moving contact component (301) being arranged on base (1) and is separately fixed at the left fixed contact (5) with left fixed contact (51) on shell block (100) and with the right fixed contact (6) of right fixed contact (61), the arc-control device of each utmost point (20) is included in symmetrically arranged left arc control device (8) and right arc control device (9) in sub-cavity (10), and left arc control device (8), the opening of right arc control device (9) is all towards left moving contact (41), right moving contact (42) respectively with left fixed contact (51), the region division that right fixed contact (61) closure/disjunction coordinates, it is characterized in that:
Described arc-control device (20) also comprises left front arc blow-out plate (13) and the right front arc blow-out plate (14) on the front shell wall (1a) that is arranged on base (1) and is arranged on left back arc blow-out plate (15) and the right back arc blow-out plate (16) on the rear shell wall (1b) of base (1), and, the track that described left moving contact (41) moves up and down is in the sub-cavity (10) between left front arc blow-out plate (13) and left back arc blow-out plate (15), the track that right moving contact (42) moves up and down is in the sub-cavity (10) between right front arc blow-out plate (14) and right back arc blow-out plate (16).
9. arc blowing type motor starter according to claim 8, is characterized in that: described left front arc blow-out plate (13), right front arc blow-out plate (14), left back arc blow-out plate (15) and right back arc blow-out plate (16) are fixedly mounted on respectively in 4 mounting grooves (18) on the upper and rear shell wall (1b) of the front shell wall (1a) of base (1).
10. arc blowing type motor starter according to claim 8, is characterized in that: described left front arc blow-out plate (13), right front arc blow-out plate (14), left back arc blow-out plate (15) and right back arc blow-out plate (16) all adopt magnetic conduction type arc blow-out plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654591.5U CN203573859U (en) | 2013-10-22 | 2013-10-22 | Arc blowing type motor starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654591.5U CN203573859U (en) | 2013-10-22 | 2013-10-22 | Arc blowing type motor starter |
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| Publication Number | Publication Date |
|---|---|
| CN203573859U true CN203573859U (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320654591.5U Expired - Lifetime CN203573859U (en) | 2013-10-22 | 2013-10-22 | Arc blowing type motor starter |
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| Country | Link |
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| CN (1) | CN203573859U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369573A (en) * | 2016-05-11 | 2017-11-21 | 上海诺雅克电气有限公司 | Motor protection breaker |
| CN108389742A (en) * | 2018-04-27 | 2018-08-10 | 福州大学 | Reinforce the method that arc gap arc blow-out magnetic flux improves electric appliance arc extinguishing ability |
| CN109616345A (en) * | 2018-12-31 | 2019-04-12 | 雷顿电气科技有限公司 | The pedestal general assembly of electric switch |
| CN109686600A (en) * | 2018-12-31 | 2019-04-26 | 雷顿电气科技有限公司 | A kind of pedestal general assembly of electric switch |
| WO2021190666A1 (en) * | 2020-04-03 | 2021-09-30 | 郭桥石 | Arc extinguishing device |
-
2013
- 2013-10-22 CN CN201320654591.5U patent/CN203573859U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369573A (en) * | 2016-05-11 | 2017-11-21 | 上海诺雅克电气有限公司 | Motor protection breaker |
| CN107369573B (en) * | 2016-05-11 | 2019-09-27 | 上海诺雅克电气有限公司 | Motor protection breaker |
| CN108389742A (en) * | 2018-04-27 | 2018-08-10 | 福州大学 | Reinforce the method that arc gap arc blow-out magnetic flux improves electric appliance arc extinguishing ability |
| CN109616345A (en) * | 2018-12-31 | 2019-04-12 | 雷顿电气科技有限公司 | The pedestal general assembly of electric switch |
| CN109686600A (en) * | 2018-12-31 | 2019-04-26 | 雷顿电气科技有限公司 | A kind of pedestal general assembly of electric switch |
| WO2021190666A1 (en) * | 2020-04-03 | 2021-09-30 | 郭桥石 | Arc extinguishing device |
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