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CN100386838C - Electromagnetic circuit breaker - Google Patents

Electromagnetic circuit breaker Download PDF

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Publication number
CN100386838C
CN100386838C CNB2004800038060A CN200480003806A CN100386838C CN 100386838 C CN100386838 C CN 100386838C CN B2004800038060 A CNB2004800038060 A CN B2004800038060A CN 200480003806 A CN200480003806 A CN 200480003806A CN 100386838 C CN100386838 C CN 100386838C
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Prior art keywords
circuit breaker
contact
bridge
fixed contact
driving member
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Expired - Fee Related
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CN1748280A (en
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诺伯特·沙尔
格哈德·威廉
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Siemens Corp
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Siemens Corp
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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
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
    • 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
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel

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  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Breakers (AREA)

Abstract

本发明涉及一种机电式断路器，它有一个可以在接通和断开位置之间转动并通过传动件(3)作用在触桥托架(5)上的旋转驱动装置(1)。当旋转到接通位置时，至少一个触桥(9)可借助触桥托架(5)落放到静触头(10)上。若触桥(9)未与静触头(10)熔接，则当旋转到断开位置时触桥(9)可借助触桥托架(5)从静触头(10)抬起，并且传动件(3)也压在旋转驱动装置(1)上。若触桥(9)已与静触头(10)熔接，则传动件(3)被触桥托架(5)保持在一个位置，在此位置该传动件阻止旋转驱动装置(1)旋转到断开位置。

Figure 200480003806

The invention relates to an electromechanical circuit breaker having a rotary drive (1) which can be rotated between an on and off position and which acts on a bridge carrier (5) via a transmission element (3). When rotated to the ON position, at least one contact bridge (9) can be dropped onto the stationary contact (10) by means of the contact bridge bracket (5). If the contact bridge (9) is not fused with the static contact (10), when it is rotated to the disconnected position, the contact bridge (9) can be lifted from the static contact (10) by means of the contact bridge bracket (5), and the drive Part (3) also presses on the rotary drive (1). If the contact bridge (9) has been fused with the static contact (10), the transmission member (3) is held in a position by the contact bridge bracket (5), where the transmission member prevents the rotary drive (1) from rotating to Disconnect position.

Figure 200480003806

Description

电磁断路器 Electromagnetic circuit breaker

本发明涉及一种机电式断路器，它包括一个可绕一旋转轴线旋转的旋转驱动装置、一个传动件、一个触桥托架、至少一个触桥和静触头，其中The invention relates to an electromechanical circuit breaker, which comprises a rotary drive device rotatable around a rotation axis, a transmission member, a contact bridge bracket, at least one contact bridge and fixed contacts, wherein

-旋转驱动装置可以在接通和断开位置之间转动，以及通过传动件以及一设置在该传动件之后的转向机构作用在触桥托架上，- the rotary drive can be rotated between the on and off positions and acts on the contact bridge bracket via the transmission element and a steering mechanism arranged behind the transmission element,

-当旋转驱动装置旋转到接通位置时，所述至少一个触桥可借助触桥托架下降到静触头上，- said at least one contact bridge can be lowered onto the stationary contact by means of a contact bridge bracket when the rotary drive is rotated into the on position,

-若触桥未与静触头熔接，则当旋转驱动装置旋转到断开位置时，所述至少一个触桥可借助触桥托架从静触头抬起，- said at least one contact bridge can be lifted from the stationary contact by means of a contact bridge bracket when the rotary drive is rotated to the disconnected position, if the contact bridge is not welded to the stationary contact,

-若触桥未与静触头熔接，则传动件压在旋转驱动装置上。- If the contact bridge is not welded to the stationary contact, the transmission part is pressed against the rotary drive.

此类断路器是众所周知的。它们必须满足尤其按IEC 947-Teil 1的要求。也就是说，这种断路器的旋转驱动装置，若触桥与静触头熔接，则在所作用的扭矩达到上述标准IEC 947 Teil 1中所给出的值之前不允许被置于断开位置。Such circuit breakers are well known. They must meet the requirements in accordance with, inter alia, IEC 947-Teil 1. That is to say, the rotary drive of this circuit breaker, if the contact bridge is welded to the fixed contact, is not allowed to be placed in the open position until the applied torque reaches the value given in the above-mentioned standard IEC 947 Teil 1 .

而实际上，尽管触桥熔接，尤其是现有的公差和弹性也仍能导致旋转驱动装置以一个小于上述断开扭矩值的扭矩置于断开位置。因此，这种标准在先有技术中只能借助附加构件满足。In practice, however, despite the welding of the contact bridges, in particular the existing tolerances and elasticity can still lead to the rotary drive being brought into the disconnected position with a torque which is less than the value of the disconnecting torque mentioned above. Therefore, such criteria can only be met in the prior art by means of additional components.

DE10152425A1公开了一种如本文开头所述类型的电磁断路器。此种断路器中所述转向机构作用于一个可直线移动地设置的联锁杆。所述联锁杆是一个不同于传动件的构件。当静触头与触桥熔接时，所述转向机构和所述联锁杆会随之保持在某个位置，在此位置上所述联锁杆阻止所述旋转驱动装置自动旋转到断开位置。但所述旋转驱动装置还可以通过手动旋转到断开位置。DE 10152425 A1 discloses an electromagnetic circuit breaker of the type mentioned at the outset. In such a circuit breaker, the deflection mechanism acts on a linearly displaceable locking lever. The locking lever is a component different from the transmission member. When the fixed contact is fused to the contact bridge, the steering mechanism and the interlocking lever will subsequently remain in a position where the interlocking lever prevents the automatic rotation of the rotary drive to the off position . However, the rotary drive can also be manually rotated into the disconnected position.

本发明的目的是设计一种断路器，在触桥与静触头熔接时，即使不使用附加构件，旋转驱动装置也不能或只有费很大的力才能被置于断开位置。The object of the invention is to design a circuit breaker in which the rotary drive cannot be brought into the disconnected position, or can only be brought into the disconnected position with great effort, even without the use of additional components, when the contact bridges are welded to the stationary contacts.

为达到此目的采取的措施是，当触桥与静触头熔接时，传动件被触桥托架通过所述转向机构保持在一个位置，在此位置，该传动件能阻止旋转驱动装置旋转到断开位置。The measures taken to achieve this purpose are that when the contact bridge is welded to the fixed contact, the transmission member is held by the contact bridge bracket through the steering mechanism in a position where the transmission member can prevent the rotary drive from rotating to Disconnect position.

这种原理的结构设计方案例如是这样：The structural design of this principle is, for example, like this:

-旋转驱动装置和传动件有各自的成型轮廓；- Rotary drives and transmission parts have their own profile;

-若触桥未与静触头熔接，所述成型轮廓互相不接触；- if the contact bridge is not welded to the static contact, said profiled profiles do not touch each other;

-若触桥与静触头熔接，所述成型轮廓在离旋转轴线的第一径向距离处互相接触；以及- if the contact bridge is welded to the stationary contact, said profiled profiles contact each other at a first radial distance from the axis of rotation; and

-通过所述成型轮廓的接触，阻止旋转驱动装置旋转到断开位置。- Preventing rotation of the rotary drive into the disconnected position by contact of said profiled contour.

实际上，若触桥与静触头熔接，旋转驱动装置和传动件通常也在小于第一径向距离的第二个径向距离处接触。但更理想的是，若触桥与静触头熔接，旋转驱动装置只是在没有所述成型轮廓时才在第二个径向距离处与传动件配合作用。In fact, if the contact bridge is welded to the stationary contact, the rotary drive and the transmission element are usually also in contact at a second radial distance which is smaller than the first radial distance. Even more ideally, however, the rotary drive cooperates with the transmission element at the second radial distance only if the contact bridge is welded to the stationary contact.

传动件通常设置为使它可绕一传动轴线旋转，该传动轴线平行于一个垂直于所述旋转轴线的平面延伸。因此，此断路器在结构上可设计得特别简单。The transmission element is usually arranged such that it can rotate about a transmission axis which runs parallel to a plane perpendicular to said axis of rotation. As a result, the circuit breaker can be designed to be particularly simple in construction.

在这种情况下，若传动件安装为相对于传动轴线不能移动、以及当触桥与静触头熔接时所述成型轮廓在一个作用地点互相接触、以及一个垂直旋转轴线朝向所述作用地点的矢量基本上平行于一个垂直于所述传动轴线的平面延伸，则旋转驱动装置的锁止特别有效。In this case, if the transmission member is mounted immovably with respect to the transmission axis, and when the contact bridge is welded to the stationary contact, said profiled profiles are in contact with each other at a point of action, and a vertical axis of rotation is directed towards said point of action The locking of the rotary drive is particularly effective if the vector runs substantially parallel to a plane perpendicular to the transmission axis.

所述转向机构尤其可设计成肘杆机构。In particular, the steering mechanism can be designed as a toggle mechanism.

由下面结合附图对实施例的说明给出本发明的其他优点和详情。在这些原理图中：Further advantages and details of the invention emerge from the following description of exemplary embodiments with reference to the drawings. In these schematics:

图1表示一个电磁式断路器的剖面；Figure 1 shows a section of an electromagnetic circuit breaker;

图2表示对图1所示断路器剖面的立体视图；Figure 2 shows a perspective view of the section of the circuit breaker shown in Figure 1;

图3、5和7表示沿图1中的剖切线A-A剖切图1和2所示断路器得到的剖面；Figures 3, 5 and 7 represent sections obtained by cutting the circuit breaker shown in Figures 1 and 2 along the section line A-A in Figure 1;

图4、6和8表示沿图1中的剖切线B-B剖切图1和2所示断路器得到的剖面。Figures 4, 6 and 8 show sections taken along the section line B-B in Figure 1 through the circuit breaker shown in Figures 1 and 2 .

按图1和2，一个电磁式断路器有一个旋转驱动装置1。该旋转驱动装置1可绕一旋转轴线2旋转。它有两个终端位置。其中一个终端位置下面称为断开位置。这一位置表示在图3和4中。另一个终端位置下面称为接通位置。在图1、2、5和6中表示了这一位置。According to FIGS. 1 and 2 , an electromagnetic circuit breaker has a rotary drive 1 . The rotary drive 1 is rotatable about a rotational axis 2 . It has two end positions. One of the end positions is referred to below as the disconnected position. This position is shown in FIGS. 3 and 4 . The other end position is referred to below as the on position. This position is shown in Figures 1, 2, 5 and 6.

一个传动件3可绕一传动轴线4旋转地装在旋转驱动装置1下方。在这里，传动轴线4平行于一个平面(或在此平面内)延伸，这一平面与旋转轴线2正交(垂直)地延伸。传动件3安装为不能沿传动轴线4轴向移动。A transmission element 3 is mounted below the rotary drive 1 so as to be rotatable about a transmission axis 4 . Here, the drive axis 4 runs parallel to (or in) a plane which runs orthogonally (perpendicularly) to the axis of rotation 2 . The transmission member 3 is installed so as not to move axially along the transmission axis 4 .

旋转驱动装置1通过传动件3作用在触桥托架5上。在此情况下，传动件3不直接而是通过转向机构6作用在触桥托架5上。按此实施例所述转向机构6被设计成为肘杆机构6。The rotary drive device 1 acts on the contact bridge bracket 5 through the transmission member 3 . In this case, the transmission element 3 acts on the contact bridge carrier 5 not directly but via the steering mechanism 6 . According to this exemplary embodiment, the steering mechanism 6 is designed as a toggle mechanism 6 .

触桥托架5借助一弹簧件7预加载荷。因此在传动件3上也施加了一个力，从而将传动件3压靠在旋转驱动装置1上。The contact bridge carrier 5 is preloaded by means of a spring element 7 . A force is thus also exerted on the transmission element 3 , so that the transmission element 3 is pressed against the rotary drive 1 .

此外，电磁式断路器还有至少一个可通断的电触头8。由图3、5和7可以看出，甚至存在三个这种触头8。但必要时也可以存在多于或少于三个这种触头8。每个触头8有一个运动的触桥9和固定不动的静触头10。In addition, the electromagnetic circuit breaker has at least one electrical contact 8 which can be switched on and off. It can be seen from FIGS. 3 , 5 and 7 that there are even three such contacts 8 . However, more or less than three such contacts 8 can optionally also be present. Each contact 8 has a moving contact bridge 9 and a stationary static contact 10 .

当操作人员将旋转驱动装置1从断开位置旋转到接通位置时，触桥托架5克服弹簧件7的弹簧力向上偏移。由此，触桥9落到对应的静触头10上，见图5和6。When the operator rotates the rotary drive device 1 from the off position to the on position, the contact bridge bracket 5 deflects upward against the spring force of the spring element 7 . As a result, the contact bridge 9 falls onto the corresponding fixed contact 10 , see FIGS. 5 and 6 .

在电磁断路器正常工作时，触桥9与静触头10互相不熔接。在这种情况下，传动件3即便在旋转驱动装置1(手动地)从接通位置返回断开位置期间仍压在旋转驱动装置1上。因此，若触桥9未与静触头10熔接，当旋转驱动装置1从接通位置旋转到断开位置时，触桥9也借助触桥托架5从静触头10上抬起。When the electromagnetic circuit breaker works normally, the contact bridge 9 and the static contact 10 are not welded to each other. In this case, the transmission element 3 remains pressed against the rotary drive 1 even when the rotary drive 1 is returned (manually) from the on position to the off position. Therefore, if the contact bridge 9 is not welded to the fixed contact 10, when the rotary drive device 1 rotates from the on position to the off position, the contact bridge 9 is also lifted from the static contact 10 by means of the contact bridge bracket 5.

旋转驱动装置1和传动件3有各自的成型轮廓11、12。如图3和更清楚地如图4所示，成型轮廓11、12彼此配合协调，它们在触桥9未与静触头10熔接时互相不接触。若反之，至少一个触桥9与其对应的静触头10熔接，则触桥托架5不能向下运动。因此，传动件3被触桥托架5通过所述转向机构6保持在一个位置，在此位置所述成型轮廓11、12互相接触。图7和8中表示了这一状况。The rotary drive 1 and the transmission element 3 have respective profile contours 11 , 12 . As shown in FIG. 3 and more clearly in FIG. 4 , the profiled contours 11 , 12 cooperate with each other, and they do not touch each other when the contact bridge 9 is not welded to the stationary contact 10 . If on the contrary, at least one contact bridge 9 is welded to its corresponding fixed contact 10, then the contact bridge bracket 5 cannot move downward. The transmission element 3 is thus held by the contact bridge carrier 5 via the deflection mechanism 6 in a position in which the profiled contours 11 , 12 are in contact with each other. This situation is shown in Figures 7 and 8 .

如图7和8所示，成型轮廓11、12在一个作用地点互相接触，这一作用地点离旋转轴线2有第一个径向距离L1。由图7和8还可看出，一个矢量V垂直于旋转轴线2并朝向作用地点。这一矢量V平行于一个平面(或在此平面内)延伸，此平面正交(垂直)于传动轴线4延伸。因此，基于传动件3不能沿轴向移动地支承在传动轴线4上，可达到通过成型轮廓11，12的接触阻止旋转驱动装置1向断开位置旋转。这样，操作人员就得到一个可通过触觉感知的有关故障状况“触桥9已熔接”的报告信号。As shown in FIGS. 7 and 8 , the profiled contours 11 , 12 contact each other at a point of action which is located at a first radial distance L1 from the axis of rotation 2 . It can also be seen from FIGS. 7 and 8 that a vector V is perpendicular to the axis of rotation 2 and directed towards the point of action. This vector V extends parallel to (or in) a plane which extends orthogonally (perpendicularly) to the transmission axis 4 . Due to the fact that the transmission element 3 is mounted immovably in the axial direction on the transmission axis 4 , it is possible to prevent the rotary drive 1 from rotating into the disengaged position by the contact of the profiled contours 11 , 12 . In this way, the operator receives a tactilely perceivable notification signal about the fault condition "contact bridge 9 is welded".

当至少其中一个触桥9与其对应的静触头10熔接时，尤其如图8所示，旋转驱动装置1和传动件3也在第二个径向距离L2处互相接触。在这里，第二个径向距离L2小于第一个径向距离L1。然而更好的是在所述旋转驱动装置1与传动件3之间并未发生所述第二个接触，也就是说，在位置13处还留有一个小的剩余间距L3。在这种情况下，旋转驱动装置1与传动件3只是在缺少所述成型轮廓11、12时才在第二个径向距离L2处配合作用。When at least one of the contact bridges 9 is welded to its corresponding fixed contact 10 , especially as shown in FIG. 8 , the rotary drive device 1 and the transmission member 3 also contact each other at the second radial distance L2. Here, the second radial distance L2 is smaller than the first radial distance L1. However, it is even better if the second contact does not take place between the rotary drive 1 and the transmission element 3 , ie a small residual distance L3 remains at the point 13 . In this case, the rotary drive 1 cooperates with the transmission element 3 at the second radial distance L2 only in the absence of the profiled contours 11 , 12 .

借助按本发明设计的电磁断路器，可以用简单的方式达到符合标准地工作，为此不需要附加的构件。Standard operation can be achieved in a simple manner by means of the electromagnetic circuit breaker designed according to the invention, for which no additional components are required.

Claims (10)

1. electromechanical circuit breaker, it comprise one can touch abutment bracket (5) around the rotating driving device (1) of a rotation (2) rotation, a driving member (3), one, at least one touches bridge (9) and fixed contact (10), wherein,
-described rotating driving device (1) can rotate switching on and off between the position, and is arranged on this driving member (3) steering mechanism (6) afterwards by described driving member (3) and and acts on described touching on the abutment bracket (5),
-when described rotating driving device (1) when rotating to on-position, described at least one touch bridge (9) and can fall to being put on the described fixed contact (10) by the described abutment bracket (5) that touches,
-described touch bridge (9) not with fixed contact (10) when melting welding is connected, then when described rotating driving device (1) when rotating to open position, described at least one touch bridge (9) and can lift from fixed contact (10) by the described abutment bracket (5) that touches,
-described touch bridge (9) not with fixed contact (10) when melting welding is connected, described driving member (3) is pressed on the described rotating driving device (1),
It is characterized by: when described bridge (9) and the fixed contact (10) of touching when melting welding links together, described driving member (3) is remained on a position by the described abutment bracket (5) that touches by described steering mechanism (6), stops described rotating driving device (1) to rotate to open position at the described driving member in this position.
2. according to the described circuit breaker of claim 1, it is characterized by:
-described rotating driving device (1) and driving member (3) have profile (11,12) separately;
-described when touching bridge (9) not with fixed contact (10) welding, described profile (11,12) does not contact mutually;
-at described bridge (9) and the fixed contact (10) of touching when being welded together, described profile (11,12) is being located to contact with each other from first radial distance of described rotation (2) (L1); And
-by the contact of described profile (11,12), stop described rotating driving device (1) to rotate to open position.
3. according to the described circuit breaker of claim 2, it is characterized by: described when touching bridge (9) and fixed contact (10) welding, described rotating driving device (1) is also being located to contact from described (2) second radial distances of rotation (L2) with driving member (3), and this second radial distance (L2) is less than first radial distance (L1).
4. according to the described circuit breaker of claim 2, it is characterized by: described when touching bridge (9) and fixed contact (10) welding, described rotating driving device (1) is just just being located from described (2) second radial distances of rotation (L2) and described driving member (3) mating reaction when lacking described profile (11,12), and this second radial distance (L2) is less than first radial distance (L1).
5. according to the described circuit breaker of above-mentioned each claim, it is characterized by: described driving member (3) can rotate around a transmission axis (4); And this transmission axis (4) is parallel to a plane perpendicular to described rotation (2) and extends.
6. according to described circuit breaker one of in the claim 2 to 4, it is characterized by:
-described driving member (3) is installed as with respect to transmission axis (4) and can not moves vertically;
-described when touching bridge (9) and fixed contact (10) welding, described profile (11,12) contacts with each other at a where-used; And
-one vector perpendicular to described rotation (2) (V) is parallel to a plane earth perpendicular to described transmission axis (4) towards described where-used and extends.
7. according to the described circuit breaker of claim 6, it is characterized by: described driving member (3) can rotate around a transmission axis (4); And this transmission axis (4) is parallel to a plane perpendicular to described rotation (2) and extends.
8. according to the described circuit breaker of one of claim 1 to 4, it is characterized by: described steering mechanism (6) is designed to elbow-bar mechanism (6).
9. according to the described circuit breaker of claim 5, it is characterized by: described steering mechanism (6) is designed to elbow-bar mechanism (6).
10. according to the described circuit breaker of claim 7, it is characterized by: described steering mechanism (6) is designed to elbow-bar mechanism (6).
CNB2004800038060A 2003-02-14 2004-01-30 Electromagnetic circuit breaker Expired - Fee Related CN100386838C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003106319 DE10306319B3 (en) 2003-02-14 2003-02-14 Electromechanical circuit breaker
DE10306319.6 2003-02-14

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EP2003667B1 (en) 2007-06-14 2013-03-27 Eaton Industries (Netherlands) B.V. Electrical switch with positive status indication
CN101894695B (en) * 2009-05-22 2012-10-17 苏州万龙电气集团股份有限公司 Bevel gear double-rocker floating rod switching device
EP2755222B1 (en) * 2013-01-14 2016-03-23 Siemens Aktiengesellschaft Switch lock for low voltage protection devices
CN105244235B (en) * 2015-10-23 2017-02-22 常熟开关制造有限公司(原常熟开关厂） Circuit breaker applied to device
DE102019209747B3 (en) * 2019-07-03 2020-10-08 Ellenberger & Poensgen Gmbh Circuit breaker

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DE10152425A1 (en) * 2000-10-30 2002-05-08 Fuji Electric Co Ltd Circuit breaker has gear and lever system to prevent switch from being moved to OFF position if contacts become welded together

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CN1748280A (en) 2006-03-15
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WO2004073008A1 (en) 2004-08-26
DE10306319B3 (en) 2004-11-04
HK1086944A1 (en) 2006-09-29

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