CN103681133A - Switch mechanism and motor protection switch device - Google Patents
Switch mechanism and motor protection switch device Download PDFInfo
- Publication number
- CN103681133A CN103681133A CN201310386756.XA CN201310386756A CN103681133A CN 103681133 A CN103681133 A CN 103681133A CN 201310386756 A CN201310386756 A CN 201310386756A CN 103681133 A CN103681133 A CN 103681133A
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- Prior art keywords
- switching mechanism
- release lever
- movable contact
- contact
- profile
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
- H01H69/01—Apparatus or processes for the manufacture of emergency protective devices for calibrating or setting of devices to function under predetermined conditions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H2011/0075—Apparatus or processes specially adapted for the manufacture of electric switches calibrating mechanical switching properties, e.g. "snap or switch moment", by mechanically deforming a part of the switch, e.g. elongating a blade spring by puncturing it with a laser
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/528—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a toggle or collapsible link between handle and contact arm, e.g. sear pin mechanism
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7463—Adjusting only the electromagnetic mechanism
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
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Abstract
Provided are a switch mechanism and a motor protection switch device. The switch mechanism possesses a switch contact, including a fixed contact fixedly arranged in the housing of the protection switch device and a movable contact movably fixed to a movable contact seat relative to the fixed contact and moving with the movable contact seat, the movable contact seat being capable of movable support. The switch mechanism possesses a movable supporting releasing rod which works on the movable contact seat in case of predefined releasing standards and is used for opening the switch contact. The releasing rod is provided with a first outline used for working on a first part of a surface of the movable contact seat in a first phase when the switch contact is open. The releasing rod is provided with a second outline used for working on a second part of a surface of the movable contact seat in a second phase when the switch contact is open. The outlines are offset, so that in the first phase, increased impact can be generated to pulse a lever, and in a second phase, increased impact can be generated to open a distance.
Description
Technical field
The present invention relates to a kind of switching mechanism for dynamo-electric protection switch equipment; this switching mechanism has switch contact, this switch contact have fixed contact in the housing that is fixedly placed on described protection switch equipment and can with respect to described fixed contact motion, be fixedly mounted on the supported movable contact bearing of mode rotatablely moving and the movable contact that can move together with described movable contact bearing.In addition; described protection switch equipment has the supported release lever of mode moving; this release lever acts on described movable contact bearing when occurring predefined dropout standard such as electric short circuit or overload current, for causing opening of described switch contact.In addition, the present invention relates to a kind of dynamo-electric protection switch equipment with such switching mechanism.
Background technology
Protection switch equipment, supplies with in net such as circuit breaker or line protection switch are especially used in electric energy as switch and safety element.Circuit breaker is especially for the electric current compared with high designs.Line protection switch is that the overcurrent in electrical installation device keeps device and is especially used in the field of low voltage electric network.Circuit breaker and line protection switch guarantee safe cut-out and prevent load and equipment is transshipped when short circuit.Circuit breaker and line protection switch are such as preventing that link tester from crossing the overgenerous heating causing due to too high electric current and be damaged and be configured in the situation of short circuit or automatically cut off the circuit of monitoring and thus by it from electrical network separately when there is overload.
Such protection switch equipment generally has switch contact pair, and this switch contact is to the switch contact or the abbreviation movable contact that have fixing switch contact or be called for short fixed contact and can move with respect to described fixed contact.For delivery electric current, the switch contact of described activity contacts with described fixed contact.In order to separate electric current, make described movable contact leave described fixed contact.The interruption of electric current causes voltage arcing at least in short time for each protection switch equipment between described fixing switch contact and the switch contact of described activity, because described spacing is also not enough to for isolation in the separation process of described switch contact.If have gas between described two switch contacts, while there is corresponding high voltage difference so between described switch contact, by electric arcing, just make described gas ionization, thus the arcing due to described gas discharge.
From patent document DE 10 2,004 040 288 B4, a kind of protection switch is disclosed, this protection switch have for detection of and the first trip gear of the cutting-off of short-circuit and for detection of and cut off the second trip gear of overload.In addition; described protection switch has switch contact and the release lever of the movable contact that is provided with fixed contact and can moves with respect to described fixed contact; this release lever is so with described the first trip gear and be coupled with described the second trip gear, thereby handles described release lever and open described switch contact when described the first trip gear and/or described the second trip gear are threaded off.
Therefore so design circuit breaker or line protection switch, thereby eliminate the electric arc producing and interrupt thus described electric current when opening described switch contact.For this reason; these protection switch equipment have the tripping system such as magnetic of not time delay; described tripping system has coil and can be with respect to the armature-tappet-unit of described coil movement, by described armature-tappet-unit, comes delivery to flow to the electric current of described switch contact or an also part for electric current described in delivery only.When electric current fast rise, such as in the situation of short circuit, described coil attracts described armature.Therefore, described tappet collides release lever, and the switching mechanism of described protection switch equipment is discharged and crumple thus.By the switch contact of opening in this process, last interruptive current.Therefore use tripping system not time delay or rapid-releasing, for when current strength is higher, prevent conduction contact-making surface fusing and when produced electric arc may damage described protection switch equipment, guarantee to cut off reliably described protection switch equipment.Shorter drop-away time is favourable for this reason, why especially true, is restricted greatly because the industrial scope of application of described protection switch passes through oversize drop-away time.
In the situation of short circuit, the tripping system of described magnetic causes opening of described switch contact.For this reason, with short circuit current, carry out the coil electricity to the tripping system of described magnetic, thus described armature is moved in described coil.The described tappet being connected with armature moves to dropout position from resting position at this.In order to open described switch contact, described tappet collides described release lever at this, and described release lever moves thus equally.By the motion of described release lever, discharge the switching mechanism of described protection switch equipment, the described movable contact being coupled with switching mechanism leaves described fixed contact thus.This means, in the motion of tappet described in short-circuit conditions, be first passed on described release lever, therefore this release lever makes described switching mechanism thread off, and described movable contact leaves described fixed contact thus.In this way, realize thus a kind of dropout chain being formed by tappet, release lever and movable contact.A kind of dropout mechanism with such dropout chain is such as having obtained from DE 10 2,004 040 288 B4 openly.
But because the driving-chain of described switching mechanism is reacted more torpidly, so also use short circuit-tripping system, described short circuit-tripping system also directly acts in addition described movable contact and makes it directly leave described fixed contact.The spacing that can realize at this while finishing the action time of the release in described not time delay between fixed contact and movable contact is called as so-called impact and opens spacing or open referred to as impact.Described impact open be thus between fixed contact and movable contact when short circuit is threaded off by the contact pitch that can directly realize the impact of the direct machinery of movable contact of described short circuit-tripping system.Final contact is completely opened subsequently and is caused by being tending towards static switching mechanism after threading off at it.Enough large impact is opened spacing and is made thus electric arc operation accelerate and make its elimination process is accelerated and therefore not only affected fatefully the switch performance of described protection switch equipment but also affect its useful life.
Summary of the invention
Therefore, task of the present invention is, the protection switch equipment of a kind of switching mechanism and a kind of electromechanics is provided, and the salient point of described switching mechanism and described protection switch equipment is shorter drop-away time and the Interruption being improved.
This task is resolved by the switching mechanism by described in independent claims and dynamo-electric protection switch equipment.Favourable design is the theme of dependent claims.
By the switching mechanism for dynamo-electric protection switch equipment of the present invention, there is switch contact, this switch contact itself have fixed contact in the housing that is fixedly placed on described protection switch equipment and can with respect to described fixed contact motion, be fixedly mounted on the supported movable contact bearing of mode rotatablely moving and the movable contact that can move together with described movable contact bearing.In addition, described switching mechanism has the supported release lever of mode moving, and this release lever acts on described movable contact bearing when there is predefined dropout standard, for causing opening of described switch contact.At this, on described release lever, constructed the first profile, described the first profile acts on the first surface of described movable contact bearing in the first stage of opening of described switch contact.In addition, on described release lever, constructed the second profile, this second profile acts on the second portion surface of described movable contact bearing in the second stage of opening of described switch contact, wherein said the first profile and described the second profile are so relative to each other setovered and are arranged, thereby spacing is opened in the impact that can realize the shock pulse lever of increase and can realize increase in the described first stage in described second stage.
The acting surface of described release lever is divided into the first profile and the second profile and is divided into first surface with the coefficient movable contact bearing of release lever and the surperficial this way of second portion can be separated according to the time the correspondingly coefficient acting surface of described release lever or movable contact bearing by described:
First in the first stage of opening of described switch contact, described the first profile so acts on described first surface, thereby can realize large as far as possible pulse lever.Described pulse lever refers to from the contact point of described acting surface until the spacing of the point of rotation of described movable contact bearing at this.If can increase this pulse lever, the pulse that can be delivered on movable contact bearing by described release lever is so also larger, lightening the opening faster that this causes the larger acceleration of described movable contact tip and causes thus described switch contact, can obtain thus described electric arc and it is thrown away from described contact area.For switch performance or the useful life of described switching mechanism or protection switch equipment; at this particularly advantageously; the opening of described switch contact completed as soon as possible and described electric arc leaves described contact area or described contact zone as soon as possible, for entering into the energy input of described switching mechanism-and thus by the as far as possible little degree of the damage of described protection switch equipment-remain on.
In further process, at the second profile of release lever described in the second stage of opening of described switch contact, act on the second portion surface of described movable contact bearing, wherein at this, so design described the second profile and described second portion surface, thereby realize thus ratio large static impact when described the first profile and the surface acting in conjunction of described first, open spacing.Static impact is opened spacing and is referred at this contact pitch being engraved between described fixed contact and described movable contact when described impact is opened.By described impact, open the raising of spacing, realize thus the higher arc voltage of described electric arc and the operation of described electric arc is accelerated, obviously improve thus switch performance and the useful life of described switching mechanism.
In a kind of favourable improvement project of described switching mechanism, described the first profile and/or described the second profile are configured to projection outstanding from the surface of described release lever (Noppe) or cam (Nocke).Projection or cam representing a kind of simply for realize described the first profile and/or the second profile and thus-in the acting in conjunction on first and/or second portion surface with described release lever-for realizing described two feasible programs that effect is secondary.
In the favourable improvement project of the another kind of described switching mechanism, described the first profile and/or described the second profile are connected with described release lever by melting welding or by means of soldering.Melting welding or soldering are adopted and current manufacture methods, utilize the described manufacture method can be in the situation that do not have larger design and fiscal expense to manufacture corresponding profile.In addition, in this way, static impact can be opened and is adjusted to predetermined smallest dimension.In addition, the processing method of mentioning provides determines the feasible program in the end that is put into more behindhand the described course of processing constantly by flexible program, thus can with comparatively favourable flexible program become original realize higher flexible program diversity-such as with or not with projection/cam or with the release lever of the different projection/cam of structure.
In the favourable improvement project of the another kind of described switching mechanism, described the first profile and/or described the second profile are integrally formed on described release lever.Selection by suitable forming method such as injection moulding, can be inexpensively-especially with the described release lever of higher number of packages-manufacture.
In the favourable improvement project of another kind, described switching mechanism has locking pawl, and this locking pawl is mechanically coupled with described movable contact bearing and is supported on described release lever when described switch contact is closed, thus switching mechanism described in locking.Describedly be locked at this and can unclamp by the motion of described release lever, in the phase III of opening of described switch contact, described movable contact bearing is placed in to its final position thus.The locking of described switching mechanism-such as the support on described release lever by locking pawl-the representing feasible program in a kind of simple design, for realize larger sealed power between described fixed contact and described movable contact, unclamping of wherein said locking causes opening of described switch contact, thus by described movable contact bearing and thus described movable contact be placed in its final position.
In the favourable improvement project of another kind; described switching mechanism can be mechanically so coupled with the supported tappet of the mode moving of the short circuit trip gear of the protection switch equipment of described electromechanics; make described tappet when there is short circuit, mechanically act on described release lever, for causing opening of described switch contact.The dropout standard of the dropout possible dropout that causes described switching mechanism and that cause thus described protection switch equipment is an appearance for short circuit, and described short circuit is accompanied by higher short circuit current.The use of essential short circuit trip gear is representing a kind of current in short circuit and the feasible program for correspondingly making the switching mechanism of protection switch equipment thread off for this reason; wherein said short circuit trip gear has coil; the mode that described coil has moving is bearing in tappet wherein; described tappet is handled by described coil when there is short circuit current, for mechanically acting on described release lever.
In the favourable improvement project of another kind; described switching mechanism can be so mechanically coupled with the overload tripping device of the protection switch equipment of described electromechanics; thereby overload tripping device mechanically acts on described release lever described in when there is overload current, for causing opening of described switch contact.Another kind can cause the dropout of described switching mechanism and cause that thus the dropout standard of the dropout of described protection switch equipment is to occur overload current, that is to say in the long predefined time interval and has occurred the high electric current of rated current than relevant protection switch equipment.For this reason, such as using bimetallic, heating and the therefrom distortion due to mobile overload current in the time interval compared with long of this bimetallic.This distortion can mechanically be delivered on described release lever by means of suitable member.By the use of extra overload tripping device, can obviously widen the scope of application of described protection switch equipment.
The described protection switch equipment by electromechanics of the present invention has switching mechanism and the short circuit trip gear of type described above; described short circuit trip gear is so coupled with described switching mechanism, thereby causes opening of described switch contact when described short circuit trip gear is threaded off.
In a kind of favourable improvement project, described protection switch equipment has overload tripping device, and this overload tripping device is so coupled with described switching mechanism, thereby causes opening of described switch contact when described overload tripping device is threaded off.
About described, by the advantage of the protection switch equipment of electromechanics of the present invention, please refer to the described advantage of mentioning by switching mechanism of the present invention.
Accompanying drawing explanation
To described, by a kind of embodiment by switching mechanism of the present invention protection switch equipment of the present invention or described, be explained in detail with reference to the accompanying drawings.Accompanying drawing illustrates as follows:
Figure 1A to 1D be described in a plurality of moment of described dropout process by the schematic diagram of the end view of protection switch equipment of the present invention;
Fig. 2 A and 2B be when the beginning that pulse is transmitted described in by the schematic detailed icon of the end view of switching mechanism of the present invention; And
Fig. 3 A and 3B are by the schematic detailed icon of the end view of switching mechanism of the present invention described in the moment of opening in static impact.
In different accompanying drawings, identical parts are provided with identical Reference numeral all the time.Specification is applicable to institute's drawings attached, in institute's drawings attached, can find out corresponding parts equally.
reference numerals list:
1 protection switch equipment
2 housings
3 rivetings
4 operating elements
10 switching mechanisms
11 fixed contacts
12 movable contacts
13 movable contact bearings
13-1 first surface
13-2 second portion surface
14 release levers
14-1 the first profile
14-2 the second profile
15 locking pawls
16 rests
17 springs
18 coupling elements
20 short circuit trip gears
21 coils
22 armature
23 tappets
24 cores
25 yokes
26 back-moving springs
30 overload tripping devices
31 bimetallics
32 twisted wires
33 tie rods
D rotating shaft
H pulse lever
L air gap
S impacts and opens spacing.
Embodiment
At Figure 1A, in 1D, correspondingly with end view, in the different moment of described dropout process, schematically show described by protection switch equipment 1 of the present invention.Described protective switchgear 1 has the switching mechanism 10 that is provided with switch contact, and described switch contact consists of fixed contact 11 and the movable contact 12 that can move with respect to described fixed contact.Described movable contact 12 is arranged on movable contact bearing 13, and described movable contact bearing 13 is bearing in the housing 2 of described protection switch equipment 1 in the mode that can rotatablely move by means of rotating shaft D.Described housing 2 consists of at least two housing components in current situation, and described housing component is fixed together by a plurality of rivetings 3.But, for simple and clear reason, only show the part in background that is arranged in of housing 2.For switch contact described in hand control, described protection switch equipment 1 has can manned operating element 4, and this operating element 4 is bearing in described housing 2 in the mode that can rotate equally.Described operating element 4 by mechanical coupling element 18(referring to Fig. 2 A/ Fig. 3 A) be coupled with described movable contact bearing 13, thereby described in when handling described operating element 4, switch contact is opened and closed.Figure 1A shows the situation in its on-position of described protection switch equipment 1; closed at switch contact described in described on-position, that is to say that fixed contact 11 and movable contact 12 are each other among direct contact and the contact of setting up thus conduction.
Described in Figure 1B shows process on pulse being delivered to described movable contact bearing 13 while starting, protection switch equipment 1 is together with the short circuit trip gear 20 of distributing to this protection switch equipment.Described short circuit trip gear 20 has coil 21 for this reason, by this coil, comes delivery to flow to the electric current of described switch contact.In order to improve the effect of the magnetic of described coil, described short circuit trip gear 20 has the core 24 of the yoke 25 being bearing in regularly in described housing 2 and the magnetic being connected with described yoke 25.Current ratio as the zooming situation due to short circuit under, described coil 21 attracts the mode moving to be bearing in the armature-tappet-unit in described coil 21 by described core 24, this armature-tappet-unit by armature 22 and regularly coupled tappet 23 formed.
Said tappet 23 moves to it the dropout position shown in Figure 1B from its resting position (shown in Figure 1A).By back-moving spring 26, reset in resting position.
Described tappet 23 in the resting position shown in Figure 1A, between described core 24 and described armature 22, form air gap L.If described tappet is moved to dropout position from its resting position, it just collides the release lever 14 of described switching mechanism 10 so.Described switching mechanism 10 that is to say when described switch contact is closed and is supported on the end above described release lever 14 by locking pawl 15 in the on-position (Figure 1A) of described protection switch equipment 1.By described locking pawl 15 and the rest 16 that described movable contact bearing 13 couples together are remained on described movable contact bearing 13 in shown position, wherein described movable contact 12 is pushed towards described fixed contact 11.When short circuit dropout process starts (referring to Figure 1B), present described tappet 23 collides described release lever 14, and this release lever is counterclockwise motion subsequently.Described locking pawl 15 can not be supported on switching mechanism 10 on the end above of described release lever 14 more thus, and described locking is released.By the motion of described locking pawl 15, described movable contact bearing 13 is no longer supported and is placed in the position shown in Fig. 1 D by spring 17 by described rest 16.By described movable contact bearing 13, making described movable contact 12 leave switch contact described in described fixed contact 11-is opened.
Described release lever 14 is referred to herein as so-called pulse lever (Impulshebel) H with the spacing of the point of rotation D with respect to described movable contact bearing of the contact point of described movable contact bearing 13.The size design of this pulse lever must be larger, and the angular momentum that can be delivered on described release lever 14 by described tappet 23 is just larger.The angular momentum that can be delivered on described release lever 14 is larger, described movable contact bearing 13 by impact, to open the acceleration that can realize just larger, wherein large acceleration causes opening faster of described switch contact.
The described protection switch equipment 1 of the moment that Fig. 1 C shows moment of finishing in short circuit dropout process namely the impact of so-called static state is opened.Said tappet 23 is in its dropout position, and described release lever 14 is placed in shown position by anticlockwise rotation thus.Also unclamp thus the locking on described release lever 14 of described locking pawl 15, wherein remaining switching mechanism 10 is because its inertia is not also reacted to unclamping of described locking.So-called impact is opened interval S and is illustrated in the spacing of leaving described fixed contact 11 of impacting the described movable contact 12 of the moment of opening, interval S is opened in described impact thus should be owing to the effect chain of described switching mechanism 10, but should be owing to this situation, described tappet 23 directly acts on described movable contact bearing 13 by shock pulse via the end below of described release lever 14 and away from described fixed contact 11.
Fig. 1 D shows the phase III of opening of described switch contact, in the complete deflection under the effect chain by described switching mechanism 10 drives of movable contact 12 described in this phase III, leave described fixed contact 11, realize thus maximum the opening of described switch contact.In this phase III-by described switching mechanism 10-, also described operating element 4 is placed in to its off-position equally.
In Fig. 2 A and 2B, schematically show described in when described tappet 13 is delivered to pulse via described release lever 14 beginning of the process described movable contact bearing 13 by switching mechanism 10 of the present invention.In Fig. 2 A, schematically show the end view consistent with diagram Figure 1B described switching mechanism 10, Fig. 2 B schematically shows the coefficient detailed icon when beginning is transmitted in pulse of described release lever 14 and described movable contact bearing 13.
Described release lever 14 has the first profile 14-1 and the second profile 14-2 in the contact area with described movable contact bearing 13.Same described movable contact bearing 13 has the surface 13-1 of first and second portion surface 13-2 in the contact area with described release lever 14.Described switch contact open in the first stage shown in Fig. 2 A and 2B, this only the first profile 14-1 of described release lever 14 act on the first surface 13-1 of described movable contact bearing 13.Described the first profile 14-1 is so formed on described release lever 14 or is so configured on described release lever 14 at this, thereby has increased the spacing that described pulse lever H that is to say described release lever 14 and the point of rotation D with respect to described movable contact bearing 13 of the contact point of described movable contact bearing 13.As can be found out in the detailed icon of Fig. 2 B well, described the first profile 14-1 is so arranged on described release lever 14 for this reason, makes described contact point-compare-move down in diagram with the release lever 14 without described the first profile 14-1.Larger pulse lever H by realizing thus, can be delivered to larger angular momentum on described movable contact bearing 13.
In Fig. 3 A and 3B, schematically show in the mode that indirectly acts on described movable contact bearing 13 by described tappet 23 and carry out described in moment that static impact opens by switching mechanism 10 of the present invention.In Fig. 3 A, schematically show again the consistent end view of the diagram with Fig. 1 C of described switching mechanism 10, and Fig. 3 B schematically shows the coefficient detailed icon of described release lever 14 of the moment of opening in static impact and movable contact bearing 13.
Described switch contact open in the second stage shown in Fig. 3 A and 3B, now also only the second profile 14-2 of described release lever 14 acts on the second portion surface 13-2 of described movable contact bearing 13.This second profile 14-2 is so formed on described release lever 14 or is configured on described release lever 14 at this, thereby increased described impact, open interval S, that is to say the spacing of leaving fixed contact 11 of described movable contact 12 of the moment of opening in static impact.As can be found out in the detailed icon of Fig. 3 B well, described the second profile 14-2 is so arranged on described release lever 14 for this reason, make with the contact point of described second portion surface 13-2-with without the release lever 14 of structure the second profile 14-2 in the above, compare-in the diagram of Fig. 3 B, move right.By this measure, can realize larger impact and open interval S.Thus; not only realize the higher arc voltage of the electric arc occurring between fixed contact 11 and movable contact 12; and the operation of described electric arc is accelerated, obviously improve thus described switching mechanism 10 and switch performance and the useful life of described protection switch equipment 1 thus.
Claims (9)
1. for the switching mechanism (10) of dynamo-electric protection switch equipment (1), have
-switch contact, the movable contact (12) that this switch contact has the fixed contact (11) in the housing (2) that is fixedly placed on described protection switch equipment (1) and can move with respect to described fixed contact (11), the supported movable contact bearing (13) of mode that this movable contact (12) is fixedly mounted in rotatablely moving is gone up and can move together with described movable contact bearing (13);
-supported the release lever (14) of mode moving, this release lever acts on described movable contact bearing (13) when there is predefined dropout standard, for causing opening of described switch contact,
It is characterized in that,
-on described release lever (14), constructed the first profile (14-1), described the first profile (14-1) acts on the first surface (13-1) of described movable contact bearing (13) in the first stage of opening of described switch contact;
-on described release lever (14), constructed the second profile (14-2), this second profile acts on the second portion surface (13-2) of described movable contact bearing (13) in the second stage of opening of described switch contact,
Wherein said the first profile (14-1) and described the second profile (14-2) are so relative to each other setovered and are arranged, thereby spacing (S) is opened in the impact that can realize the shock pulse lever (H) of increase and can realize increase in the described first stage in described second stage.
2. press switching mechanism claimed in claim 1 (10),
It is characterized in that,
Described the first profile (14-1) and/or described the second profile (14-2) are configured to projection outstanding from the surface of described release lever (14) or cam.
3. press switching mechanism claimed in claim 2 (10),
It is characterized in that,
Described the first profile (14-1) and/or described the second profile (14-2) are connected with described release lever (14) by melting welding or by means of soldering.
4. press the switching mechanism (10) described in any one in claim 1 or 2,
It is characterized in that,
Described the first profile (14-1) and/or described the second profile (14-2) are integrally formed on described release lever (14).
5. press switching mechanism in any one of the preceding claims wherein (10),
It is characterized in that,
-described switching mechanism (10) has locking pawl (15), this locking pawl is mechanically coupled with described movable contact bearing (13) and when described switch contact is closed, is supported on described release lever (14) above, thus switching mechanism (10) described in locking;
-described locking can unclamp by the motion of described release lever (14), in the phase III of opening of described switch contact, described movable contact bearing (13) is placed in to its final position thus.
6. press switching mechanism in any one of the preceding claims wherein (10),
It is characterized in that,
Described switching mechanism (10) can be mechanically so coupled with the supported tappet (23) of the mode moving of the short circuit trip gear (20) of the protection switch equipment (1) of described electromechanics; make described tappet (23) when there is short circuit, mechanically act on described release lever (14), for causing opening of described switch contact.
7. press switching mechanism in any one of the preceding claims wherein (10),
It is characterized in that,
Described switching mechanism can be mechanically so coupled with the overload tripping device (30) of the protection switch equipment (1) of described electromechanics; thereby overload tripping device described in when there is overload current (30) mechanically acts on described release lever (14), for causing opening of described switch contact.
8. the protection switch equipment (1) of electromechanics, has
-by the switching mechanism (10) described in any one in claim 1 to 7;
-short circuit trip gear (20), this short circuit trip gear is so coupled with described switching mechanism (10), thereby causes opening of described switch contact when described short circuit trip gear (20) is threaded off.
9. by the protection switch equipment (1) of electromechanics claimed in claim 8; there is overload tripping device (30); this overload tripping device is so coupled with described switching mechanism (10), thereby causes opening of described switch contact when described overload tripping device (30) is threaded off.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012215467.1 | 2012-08-31 | ||
| DE102012215467 | 2012-08-31 | ||
| DE102013211539.3A DE102013211539B4 (en) | 2012-08-31 | 2013-06-19 | Switching mechanism and electromechanical protective switching device |
| DE102013211539.3 | 2013-06-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103681133A true CN103681133A (en) | 2014-03-26 |
| CN103681133B CN103681133B (en) | 2017-07-04 |
Family
ID=50098616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310386756.XA Active CN103681133B (en) | 2012-08-31 | 2013-08-30 | The protection switch equipment of switching mechanism and electromechanics |
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| CN (1) | CN103681133B (en) |
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| DE102017214557A1 (en) | 2017-08-21 | 2019-02-21 | Siemens Aktiengesellschaft | Electromechanical protection device |
| CN109509689B (en) * | 2017-09-14 | 2024-03-26 | 浙江正泰电器股份有限公司 | Operating mechanism of switch electric appliance |
| DE102019220444B4 (en) | 2019-12-20 | 2021-08-05 | Siemens Aktiengesellschaft | Remote operator and parameterization procedure |
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| DE102022207779A1 (en) | 2022-07-28 | 2024-02-08 | Siemens Aktiengesellschaft | Plug-in summation current transformer assembly, modular device and assembly method |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102013211539A1 (en) | 2014-03-06 |
| CN103681133B (en) | 2017-07-04 |
| DE102013211539B4 (en) | 2020-08-06 |
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