DE2011542A1 - Connection block for control devices - Google Patents

Description

ng. Walter Meissner Dipi-ing. Herbert Tischer

BERLIN 33, HERBERTSTRASSE 22 MUNICH

Telephone: 8 87 72 37 - Wired word: Invention Berlin Postal checking account: W. M e I a η β r, Berlin West 122 Θ2

Bank account: W. Meissner, Berliner Bank A.-Q., Depka 36. "_" .... ", _, e uni *« _n .

Beriln-Halensee, KurfOrstendamm 130 1 BERLIN 33 (GRUNEWALD), the * " 0th MARCH 1970

* .... ' HerbertetraBe 22

AH 6Jo

Terminal block for control devices ■. -

The invention relates to electrical connections, in particular on connection blocks for motor control devices. \

With the advancement of automation, many manufacturers have found that complex systems for controlling the electric motors that drive the individual processing machines are necessary. If not particularly Care is taken that the gearbox and the associated device take up most of the available manufacturing space take in.

Access to the manual transmission is also a problem. at One solution was to arrange the sailing devices in front of the manifolds, with the device housing drawers included in which the control equipment for a number can be incorporated by processes.

One known system that is in use consists of a drawer housing in which each drawer at its The back is provided with a number of contacts. Such a contact set establishes the connection with a Three-phase busbar when the drawer is fully inserted »The second set of contacts feeds the Operate the controller in the drawer and a third set sets three-phase egg under the control of the control device? - gie to the engine. The maintenance work can be carried out on the control unit in the drawer simply by pulling out the compartment which gives access to the device.

i1600 -2-

This arrangement nevertheless has the disadvantages that all the wiring is on the back of the housing and the external connections are located between the manifolds and the housing.

The object of the invention is to provide a connection block with which the installation and maintenance of the Control device can be carried out more easily.

Another object of the invention is to provide a terminal block in which a sliding engagement of the electrical contacts are possible and misalignment to some degree between the ones to be connected 'filing can be compensated.

The invention consists in that when complementary terminal blocks one is attached to the side of the drawer and the other to a fixed plate around the Establish connections and interrupt them by pulling out the drawer.

The connection block according to the invention for the purposes mentioned takes up a very small space, so that the overall dimensions the drawer controller housing can be kept very small.

On the one hand, according to the invention, a terminal block for insertion into a complementary block is provided with an insulating housing located between its ends and on opposite sides with two grooves through which it can be held in a slot in a stationary or sliding plate, with two Clamps at one end of the housing for receiving and holding the ends of two wires and is provided with a pair of contacts which are electrically connected to the clamps and protrudes beyond the other end of the housing, the contacts sr being arranged so that they are the perimeter

009838/1600

the Billen tower above me than the other contacts.

Preferably there are two such complementary terminal blocks provided, with the contacts of a block in the form of pins or the like and the other contacts the shape, of spring clips that attach to the pins or like to attack »

On the other hand, according to the invention, a three-phase connection block an insulated housing with base plate and side walls included, with a set of three in the Base plate molded contacts through both sides • into the interior of the housing outside the housing runs and one or more openings are provided in both sides of the housing, so that a complementary The three-phase contacts are replaced by relative Sliding movement parallel to the base plate with the former Contacts can be connected *

■ The first-mentioned contacts are preferably located in triangular arrangement and the one from the wall with an opening or the end of the housing removed with openings is beveled and has projections for engaging a complementary shaped opening in a holding plate.

For a better understanding of the invention, an exemplary embodiment is provided a motor control device described, arranged in the drawers in front of a set of collecting lines are. ; ■■ '■

Each drawer of the housing consists of a side panel that is in an upper and a lower guide slides, preferably with a non-abrasive material such as nylon or polytetrafluoroethylene. The bottom of the drawer is off the side panel held like a console and carries the electrical or electronic part of the control device. The back of the Drawer carries three spring-loaded contact clamps to

009838/1600. " ⁴ "

access a three-phase manifold when the drawer is fully inserted. These contacts are with the Circuits connected in the drawer.

On one side of the drawer opposite the retaining plate a set of contacts for the control circuit and a set of three-phase contacts for the motor for sliding engagement to the complementary contacts on a fixed plate in the housing and preferably next to the front of the housing provided.

There should be enough space in the sliding mechanism for the drawer so that it can be moved easily. Therefore, an exact alignment between the fixed and moving contact sets cannot be maintained. the Terminal blocks allow the contacts to be connected to be properly gripped without precise alignment.

For the control loops, the connection blocks are preferably composed of units as shown in FIGS and 2 of the drawing.

Figure 1 is a view of a connector block for drawers constructed from a molded thermoplastic housing 1o consists of grooves 12 through which it can slide in a slot in the vertical side 13 of the drawer, opposite which it is held in guides.

The section of the housing 1o above the grooves 12 is in the drawer, while the rest of the housing is outside of the drawer.

There are two on the control dots in the drawer Wires 14, which are held in the housing 1o by clips 16 with screws 18, which pass through the openings 2o in the housing are easily accessible. Two lines 22 and 23 are held with a .linde in the brackets 16 and the other ends go through the openings 24 and 25 from the

009838/1600 "^

Housing out. They are preferably made of copper wire and have flattened ends _{0 in the form of pins 26, 27}

The line 22 is longer than the line 23, so that the: Pin 26 also protrudes further from side 13 of the drawer than pin 27. The corresponding side of the housing 1o is like that. graded that the openings 24 and 25 a holder against the displacement of the pins 26 and 27 result.

The connection block with the attachment to a fixed part of the housing is shown in FIG. Owns there too the thermoplastic housing 3o a stepped shape, so it can be connected to the stepped housing 1o f | can. The housing 3o is provided with two grooves 32, through which it is in a slot in a solid vertical Plate 33 of the housing is held. - ■

With the outside of the device are used to set individual Operations for the control circuit in the drawer two wires 34 connected, which in the housing 3 ° by means of; . · Brackets 36 are held, which with screws 38 verse- j hen that are easily accessible through openings 4o in the housing «, These openings run to the front of the housing at an angle to further facilitate access.

■ ■ - ■■■ I

Two lines 42 and 43 are bracketed at one end 36 held and their other ends are with spring contacts 44 and 45 for engaging pins 26 and 27 the lines 22 and 23 provided.

Both the housing 1o and the housing 3ο are with

flat (not shown) lids provided. : ~

The slots in the side panel of the drawer and in. the fixed plate of the housing for holding the terminal blocks preferably have the shape of Figure 3 with a

009838/1600

relatively "wide top of sufficient width and depth for the housing and a slightly narrower base of such width that there is the space between the inner portions of the grooves 12 or 32.

It will be seen that any number of terminal blocks can be installed simply by sliding them into portion 5o with grooves 12 and 32 aligned with the plate and housings 10 or 3o down into the section 52 slide. The length of the section 52 is chosen so that it corresponds to the number of housings required.

With this arrangement, all control circuits can go through Push in the drawer in the direction of arrow 54- with pins 26 and 27 on corresponding contacts 44 and 45 come into engagement and all circuits can be in can easily be separated from the contacts 44 and 45 by pulling out the drawer and loosening the pins.

The contacts for the motor for direct connection operation are preferably of the type shown in FIGS. 4 to 6 shown shape.

Figures 4 and 5 show a connection block for the Drawer, while Figure 6 shows the complementary connection block for the fixed plate in the housing. The movable one Terminal block contains a thermoplastic housing 6o, from the base plate 62 of which three copper lines 64 lead out in both directions. The ends 66 of the lines 64 are in the drawer and have holes 68 provided, through which they are under control of the three-phase voltage source from the bus lines the control circuits can be connected.

The sections 7o of the conduit 64 in the housing 6o are arranged so that clips 72 are connected to them. in the

009838/1600

The lines 64 are housed apart from one another through cast walls 74 separated to prevent flashovers and. to be able to arrange the lines closer together,

The portion of the housing 6o near the front part of the drawer is beveled (Figure 5) and its side walls 75 are with two sets of aligned protrusions 76 and 78 provided, the projections of the set 76 in such relationship to the projections of the set 78 are, that the casting of the housing is facilitated. The projections are similar to those according to FIG. 6, from which the Arrangement can be seen more clearly.

M The distance between both sets of protrusions is 5i

equal to or slightly greater than the thickness of the side plate 13 of the drawer in which the contacts are arranged should * with an opening after training 8o in figure 7 in the side panel of the drawer, the housing 6o can easily be inserted into the space between align projections 76 and 78 with plate 13 and then slide in the direction of arrow 82 to engage the tabs with the plate. Preferably A bracket and a spacer hold the housing 6o in the position indicated by dashed lines in FIG Position.

FIG. 6 shows a suitable connection block for use in conjunction with the connection block according to FIGS. 4 · and 5 · Sr includes a thermoplastic base plate 9o in a similar shape to the plate 62 of the housing 6o according to FIG Provided projections 92 and ⁰ A, which are arranged at a corresponding distance equal to or slightly greater than the thickness of the fixed plate 33 of the housing in which the terminal block is located.

In the base plate 9o there are three leads & 96 in the same In the same direction as the lines 64 * of the complementary,

009838/1600.-... ■? '

- ο -

tary blocks. The lines run through, both sides the base and at one end they are provided with holes 98, through which they can be electrically connected to a motor.

The parts of the leads 96 on the opposite side of the base * 9o are for engaging respective spring clips 72, iff the drawer in the direction of arrow 1oo is inserted in FIG M-.

Figures 4 and 6 relate to two terminal blocks in the appropriate positions in which the drawer is pulled out and the motor circuit is interrupted.

The arrangements of the connection blocks according to the invention have the advantages over the known ones that the wiring slightly from the front of the Hegier case is accessible and that the Hegel circuits and the motor circuit can only be accessed by pushing in or pulling out or can be produced or interrupted on the housing. There is thus to the rear of the control device no access. Bb there is also no need to expose wiring in order to carry out maintenance work. In addition, the blocks are designed so that there is only a very small space on the side of each drawer necessary is.

009838/1600

Claims (8)

Claims Terminal block for sliding engagement in a complementary Terminal block with an insulating housing, which is located between its ends, characterized in that the housing (1o, 3o) on opposite sides Sides (13, 33) has two grooves (12, 32) through which it is in a slot in a stationary slidable plate can be held that in one end of the housing two brackets (16, 36) for receiving and holding the Ends of two wires (13 »34 ·) and two contacts provided are electrically connected to the brackets and emerge from the other end of the housing, one of the contacts being arranged so that it protrudes beyond the boundary line between the grooves by a greater amount than the other contact. 2. Two complementary terminal blocks according to claim 1, characterized in that the contacts of the one block the shape of pins (26, 27). or the like. And the contacts of the other take the form of spring clips (44, 45) for gripping to the pens or the like. Own. 3. Connection block according to claim 1 and 2, characterized in that the brackets (16, 32) from the opposite Side of the plate are accessible and that contacts are arranged on it. 4. Connection block according to one of claims 1 to 3 »thereby characterized in that the brackets (16, 32) screws 009838/1600. -2- - 2 / -_ ZUI I 5 with Z. (18, 38) containing the axes of which angle to the plane of the plate, so that when the plate part of the housing or tray is of a housing by the terminal block is located, the axes of the screws angle to the front of the housing to facilitate Accessibility are directed. 5. Terminal block according to one of the preceding claims , characterized in that in three-phase design in an insulating housing (6o) with base plate (62) and side walls, three spaced contacts are cast into the base plate (62) and go through both sides into the interior of the housing and outside of the housing 0 | protrude and that one or more openings on one Side of the housing are provided that have a complementary set of three-phase contacts with the molded Can connect contacts by relative sliding movement parallel to the base plate. 6. Terminal block according to claim 5, characterized in that the cast-in contacts are arranged in a triangular shape and the end of the housing that is remote from the wall is provided with an opening or openings, is beveled, with projections provided for engaging a complementary shaped opening in a carrier plate are" 7. Connection block according to claim 5 or 6, characterized in that that in order to prevent arcing, the contacts are separated by one-piece walls of the housing are separated. 8. Connection block according to one of claims 5 to 7 »thereby marked that the contacts are gripped with spring clips are provided on complementary contacts. Dipl.- Ing.W. Meissner i 009838/1600 "f Λ '^ί; ' A6 No. 60/70 {§46