CN1324491A

CN1324491A - Contact element

Info

Publication number: CN1324491A
Application number: CN99812325A
Authority: CN
Inventors: 约尔格·舍费尔
Original assignee: Kloeckner Moeller GmbH
Current assignee: Eaton Industries GmbH
Priority date: 1998-12-04
Filing date: 1999-11-09
Publication date: 2001-11-28
Anticipated expiration: 2019-11-09
Also published as: DE59901155D1; ES2176045T3; WO2000034967A1; ATE215729T1; AU1161600A; CN1200438C; HU222639B1; EP1135784A1; HUP0104679A2; DE19856678A1; DE19856678C2; EP1135784B1

Abstract

The invention relates to a contact element for an electric switch device. The aim of the invention is to minimize the number of components required for such a device. To this end, the invention provides a contact element with an actuator which is designed in such a manner that a contact bridge can be arranged in two different axially spaced apart positions at the actuator.

Description

Contact

The present invention relates to a kind of contact of electric switchgear of independent claims preamble.

Such contact is known, wherein uses the different embodiments of operating push rod for different switching function " disconnection " and " connection ".Its shortcoming is that the number of spare parts of processing is many and assembly fee usefulness contact is high.

The purpose of this invention is to provide a kind of contact that overcomes the above-mentioned type of above-mentioned shortcoming.

Based on such contact, purpose of the present invention realizes by the feature of the characteristic of independent claims, and the useful further structure of the present invention is provided by dependent claims.

In the further structure of contact, the advantage that its housing and the operation push rod that is mated constitute is that its operation push rod can also be assemblied in the installation site of rotating 180 degree around transverse axis.

The present invention also comprises electric switchgear, and as particularly the manual command device is as pushing or rotating switch, wherein contact device forms by contact of the present invention.The present invention also comprises Circuit Switching Unit such as protector, line switching or same apparatus in addition, and wherein auxiliary switch forms by contact of the present invention.

Further details of the present invention and advantage are provided by the embodiment that describes with reference to the accompanying drawings, wherein:

Fig. 1 shows the perspective view of the present invention as contact first embodiment of the disconnecting apparatus of installed in front, does not wherein have cover piece;

Fig. 2 shows the exploded view of Fig. 1 contact;

Fig. 3 shows the details of the push rod device of Fig. 1 and 2 contact;

Fig. 4 shows the perspective view of the contact of the engaging means of installing as rear side, does not wherein have cover piece;

Fig. 5 shows the exploded view of Fig. 4 contact;

Fig. 6 shows the details of the push rod device of Figure 4 and 5 contact.

Fig. 1 shows the contact of the present invention as the disconnecting apparatus of installed in front, and it comprises that housing 2, two fixed contacts that are connected with external electric lead divide 4 and push rod device 6.

Its advantage is that housing 2 is by comprising that supporting push rod device 6 and fixed contact divide 4 substrate 8 and cover piece 10 (Fig. 2) two parts formation.

Each fixed contact divides 4 to be made of so that accept external wire the spiral interface that comprises contact plate 14, fishbolt 16 and pressing plate 18 with contact block 12.Also can step up device or other with extension spring connects and replaces being spirally connected.

Push rod device 6 comprises that an operation push rod 20, has contact bridge piece 24, a heel piece 26 and an

elastic component

28,29 of preferably being made by insulating material of two contact blocks 22.Push rod device of the present invention is to constitute like this, promptly contacts two positions different, axially spaced apart from each other that bridge piece 24 can be in operation push rod 20.Primary importance is the operation push rod 20 position A as disconnection push rod (Fig. 1-3), and the second place is that operation push rod 20 is as the position B that connects push rod (Fig. 4-6).

Make the heel piece 26 of contact bridge piece 24 and elastic component 28 electric insulations be foursquare, cuboid substantially and have the blind hole type recess of accepting its spring in a side at primary importance A towards spring 28.Four of the heel piece 26 that is provided with in case of necessity can form groove at the ribs that vertically distribute, it with the convex shoulder mating reaction inwardly of vertical limit part 30 to reach the purpose of guiding.Heel piece 26 constitutes like this, and promptly it can be assembled by all four position of rotation, has further simplified installation thus.Towards the contact bridge piece 24 a side legs 26 have one with the protruding mating reaction that contacts bridge piece 24 so that the positioning recess of its location.

In a preferred embodiment of the invention, push control rod 20 is made of moulding, have two H shapes on its vertical section and comprise two

longitudinal edge parts

30,31 and widthwise edge part 32,33, the face that therefore limits the two relative horizontal edge parts 32 of position A and B has formed respectively and has contacted the stop surface of bridge piece 24 at corresponding on-position or open position.Horizontal edge part 32 is provided with between the longitudinal edge part like this, and promptly the longitudinal axis X-shaped of push rod device 6 has become the vertical line of horizontal edge part 32 stop surfaces.Its stop surface or stop surface (n) can be tilted to reduce with respect to opposed

longitudinal edge part

30,31 or increased and form by

longitudinal edge part

30,31 in another embodiment, have realized the auto purification of the

contact block

12,22 when mating reaction like this.

The contact bridge piece 24 that is in the A position in the embodiment of Fig. 1-3 is arranged between the free end of

longitudinal edge part

30,31 and is bearing on the housing 2 by first spring part 28 when assembling.Spring part 28 can be used as the back-moving spring of push rod device 6 here also simultaneously as the press contacts spring that contacts bridge piece 24.

The contact of Fig. 1-3 is to adopt installed in front according to its structure.Also being suitable for rear side by further its contact of installation same parts installs.To this with shown in member be arranged as its whole push rod device of starting point around transverse axis Y Rotate 180 degree, make spring part 28 be bearing in (not shown) on the opposed housing wall.Like this advantage of being brought be housing 2 substrate 8 still can according to structure with the operation push rod 20 cooperate.For this reason substrate 8 at the opposed distolateral opening that has paired setting respectively of its direction of motion perpendicular to operation push rod 20 to pass the free end of operation push rod 20.A distolateral opening of its housing is used for passing the free end of the operation push rod 20 that is installed in contact, be used to pass the free end that is installed in the operation push rod of contact in the plug-in mounting mode and be arranged on another distolateral opening of opposed housing, so that can operate two contacts simultaneously.If the both sides of fixing contact 4 do not have contact block 12, can replace them with fixed contact therefor 4 equally with corresponding contact piece.

Contact device has been shown in Fig. 3-6 break part of (as on the lid rail) has been installed as rear side.In embodiment, the opposite face B that its contact bridge piece 24 is arranged on horizontal edge part 32 upward and in the space between widthwise edge part 32,33 and by second spring part 29 in its space is bearing on another horizontal edge part 33.Finally as back-moving spring, therefore can also save heel piece 26 here at embodiment medi-spring spare 28.Contact pressure on the contact bridge piece 24 guarantees by additional spring part 29.

In order to simplify assembling, have one at least and be preferably perpendicular to the groove 34 that on longitudinal edge part 30, forms that longitudinal axis X distributes, just can insert in its space under the situation that does not need to be rotated by its groove contact bridge piece 24.

The present invention is not limited to the foregoing description, and also comprises the embodiment that all are identical with design of the present invention.

Claims

1, a kind of contact of electric switchgear, comprise that one has substrate and cover piece (8,10) housing (2), two fixed contact branches (4) that are connected with electric lead that are arranged in its housing (2), the one operation push rod (20) that is bearing in the axial motion on the housing (2) by first spring part (28) is to accept contact bridge piece (24), its contact bridge piece (24) is used for being switched on or switched off its electrical connection between fixed contact therefor (4), it is characterized in that, operation push rod (20) constitutes like this, promptly contacts the position (A that bridge piece (24) is arranged on the neither coaxial interval on the operation push rod (20), B).

2, contact as claimed in claim 1 is characterized in that, the vertical section of its operation push rod (20) is the two H shapes that comprise two longitudinal edges parts (30,31) and widthwise edge part (32,33).

3, contact as claimed in claim 2 is characterized in that, two faces opposite each other of its horizontal edge part (32) form each stop surface of contact bridge piece (24).

As the contact of above-mentioned claim 2 or 3, it is characterized in that 4, at least one longitudinal edge part (30,31) has a groove (34) that is arranged between the horizontal edge part (32,33) and contacts bridge piece (24) to install.

As the contact of one of above-mentioned claim, it is characterized in that 5, operation push rod (20) is with respect to the median plane mirror symmetry between the longitudinal edge part (30,31).

6, as the contact of one of above-mentioned claim, it is characterized in that its contact bridge piece (24) can be arranged on the primary importance (A) between the unlimited free end of longitudinal edge part (30,31) and be bearing in housing (2) by spring part (28) and go up, and can be arranged on the second place (B) between the widthwise edge part (32,33) and be bearing in horizontal edge partly on one of (33) by another spring part (29).

As the contact of one of above-mentioned claim, it is characterized in that 7, the heel piece (26) that its first spring part (28) is made by insulating material is arranged between the unlimited free end of longitudinal edge part (30,31).

8, as the described contact of one of above-mentioned claim, it is characterized in that: its housing (2) has the opening of paired setting respectively to pass the open end of operation push rod (20) the distolateral of direction of motion distribution perpendicular to operation push rod (20).

As the contact of above-mentioned claim 8, it is characterized in that 9, horizontal edge part (32,33) is arranged between the longitudinal edge part (30,31) with the angle that tilts.

10, electric command device, as push or rotating switch or same apparatus, it is characterized in that, according to the contact of one of aforesaid right requirement.

11, Circuit Switching Unit as protector, line switching or same apparatus, is characterized in that, according to the contact of one of claim 1-9.