DE102008034113A1 - Electric connecting device i.e. plug-type connecting device, for transmitting electric power for controlling and operating servomotor, has latching device comprising latching unit arranged inclined to base surface of shielding plate - Google Patents

Abstract

The device (1) has a conductor connection device (3) provided at a housing (2) and for connecting a conductor (4). A shielding plate (6) is connected with the housing by a latching device (5) for shielding the conductor connection device. The latching device has latching unit arranged inclined to a base surface (7) of the plate, and side sections (11, 12) of the plate is angled from the base surface of the plate. The latching device is arranged at the side sections, and the base surface is planarly formed.

Description

The The present invention relates to an electrical connection device with a housing and a conductor connection device provided thereon for connecting at least one electrical conductor. Especially the invention relates to such a connecting device in which the transmission of electrical power for control and for the operation of, for example servomotors possible is. Possible voltages are up to 1000 volts and currents of up to 80 amps or even more.

at the control of z. B. Servo motors can be electromagnetic Disturbance occur, which the control of stepper motors or servomotors can. To reduce negative influences or In particular, to exclude completely, the To be connected conductor provided with Abschirmleitern and on the electrical connection device is a shielding plate provided, which for the derivation of electromagnetic interference via a clamp or a screw connection is contacted.

In the prior art, a number of electrical connection devices with conductor connection devices have become known. For example, with the DE 203 16 262 U1 a Schirmanschlusseinrichtung for a arranged in a housing circuit board has become known, wherein a connector is connectable to a mating connector. A shielding plate with a shield connection is used for the electromagnetic shielding of disturbing influences. The shield has a flat surface, at the end of two end strips are bent twice, so that the resulting locking units are aligned parallel to the screen surface of the shield. These locking units are locked with corresponding openings of the connector, so that the shield with the connector as a whole forms a unit that can be connected to a mating connector.

Another electrical connection arrangement is known from DE 20 2006 016 545 U1 become known, in which a shield plate is provided for shielding the connector. Also in this embodiment, narrow areas are deflected twice at the two edges of the mounting plate of the shielding plate by about 90 degrees, so that the mounting plate parallel latching areas are provided for engagement with the housing of the connector.

The The aforementioned electrical connection arrangements operate from As a rule, the mechanical stability is sufficient. The disadvantage, however, is that the connection between the shield plate and the respective connector only over two narrow Stege takes place, so a not inconsiderable game occurs between the connector and the shield, which may be disadvantageous during assembly and operation.

In front It is therefore the background of the described prior art the object of the present invention, an electrical connection device to provide, at which a lesser game between the shielding plate and the connector or the housing of the Connector is present. An aspect of the task of preferred developments is to have an electrical connection device available to provide, which is simple and inexpensive in high volumes can be made.

The Object of the present invention is achieved by a electrical connection device with the features of the claim 1. Preferred developments of the invention are the subject of the dependent claims. Further advantageous features and properties of the invention result from the embodiment.

The inventive electrical connection device has at least one connector with at least one of them provided conductor connection means for connecting at least one Ladder up. A shielding plate serves to shield the conductor connection device against electromagnetic radiation. The shield is over at least a latching device connected to the connector. The locking device has at least one inclined to the base of the shielding plate arranged catch unit.

The Connecting device according to the invention has many Advantages. A considerable advantage of the invention Connecting device is that the latching device at least a to the base of the shield plate inclined latch unit having. By the angle between the detent unit and the base of the shielding becomes a considerably larger Stiffness of the shielding plate, especially in the connection area to the connector, allowing a more stable Connection with the connector is possible. hereby It even becomes even with swinging load of the connecting device possible that play between the shielding and the Keep connector low. This may, for example, a rattle, which when stacking the shielding plate and the connector would be prevented.

In this case, the latching device may comprise a latching unit or it may comprise a plurality of latching units which extend from the base of the shield plate, which is arranged in particular in a plane inclined protruding or stand. The fact that the latching unit is not aligned parallel to the base surface of the shielding plate, a higher flexural rigidity is made possible because the latching unit is not bent about a bending axis between the shielding plate and the connector.

The Shielding plate preferably comprises a substantially planar shielding surface, of the latching device and in particular the locking units inclined stick out. Preferably, the locking device or it is the Locking units from the plane of the shielding plate upwards or in Direction of the connector of the conductor connection device bent over.

In According to a preferred development, the catch unit is transverse and in particular perpendicular or approximately perpendicular to the base of the shielding plate aligned. This results in a high stability and bending stiffness allows.

Preferably is the latching device or at least one latching unit on a Side portion of the shielding plate arranged. Here is the side section of the shielding plate to a base of the shielding plate at an angle between 30 ° and 150 ° and in particular at an angle between 60 ° and 150 ° and preferably arranged at an angle between 80 ° and 100 °. Especially Preferably, at least one latch unit is approximately at right angles to the Base of the shielding plate aligned. Approximately at right angles here does not mean an exact mathematical angle, but allows also deviations by a few degrees. In particular, an adjustment to the outer housing form of the connector possible and preferred.

Especially is at least a side portion of the shield plate from the base the shielding plate angled. In this case, the side section serves also as a stabilizing section and increases the rigidity of the shielding plate. In particular, the side portion is along a longitudinal edge of the shielding plate angled. The longitudinal edge the shielding plate extends in particular in the direction of the to be connected Ladder so that in a front area of the connecting device the conductors to be connected to the conductor connection device be connected while in the back area the connection device z. B. a cable connection tongue on the Shield is located, with the individual shields of the connect the conductor to the shielding plate.

In all embodiments is in particular at least one locking device arranged on the side portion.

Preferably is the base of the shielding approximately flat and / or in particular to the shape of the underside of the connector customized. It is possible that the shielding on the bottom of the connector rests. In particular, if the connector is designed like a module or if It consists of several parts, it is also possible that the shield plate a certain distance from the connector to the normalized conditions with respect to the air gap between two contact points or with respect to the required Distance for leakage currents. At z. B. a design condition of 600 volts should be an air gap 9.5 mm between two contact points and not below possible leakage currents should be the distance 12.5 not lower than mm. For other design conditions apply according to other minimum distances.

If the connector is constructed in several parts, provide the connection points the connector the possibility of the occurrence of Creepage currents, so that in such cases here necessary distance is to be maintained.

In In all embodiments, at least one detent unit is approximately parallel aligned with the page section. In this case, the locking unit be arranged approximately in the surface of the side section, or the catch unit is by one or two bends of the side section bent accordingly, to again about one to get parallel alignment to the side section. Since the Side section at an angle to the base of the Abschirmblechs is arranged inclined, is again a corresponding Angle between the detent unit and the base of the Shielding plate in front.

In In all embodiments, it is possible that the detent unit or at least one detent unit by punching a portion of the Shield is formed. This offers a significant advantage since a portion of the shielding plate by bending and punching to a catch unit is converted.

Possible it is also that the latch unit imprinted in the side section is. Such an impression is created on one side of the side section one elevation, while on the other side of the side portion creates a depression, which in a corresponding Counter section of the connector engage and thus locking the Allow connector with the shield.

In In another embodiment, it is possible and preferred in that the latching unit consists of a metal strip of the shielding plate is formed.

Especially The latch unit may also act as a recess in the side section be educated. It is also possible that several recesses form one or more locking units in the side section, the engage with corresponding sections in the connector.

In all configurations, the connector in a disc design be formed, in which the conductor to be connected with a spring clamped in the housing of the connector become. By example, a disk construction of the connector The individual springs can easily into the respective housing parts the connector is inserted before the connector in total is mounted on the electrical connection device. At this It should be noted that the electrical connection device in particular is designed as an electrical connector device.

One considerable advantage of the solution according to the invention is that the latching unit or the latching means of bent Material of the shielding arises, so compared to the cited The technology as a whole has a smaller footprint is required for the shield. In the prior art arise from the projecting in the development of the shielding webs greater punching losses. According to the Solution according to the invention, the blend be kept lower during punching. To be latched no far outwardly projecting webs needed.

All in all For all solutions, the locking plane is transverse and in particular approximately perpendicular to the shielding plate or to the base of the Shielding executed. In particular, extend the respective locking units in the longitudinal direction of the shielding plate and thus allow a high flexural rigidity in the longitudinal direction, so that the electrical connection device is more stable overall and is made more rigid.

One Another advantage of the preferred developments of the invention electrical connection means is that the latching points of the Shielding plate with the connector of the conductor connection device not necessarily arranged at the front end of the electrical connection device are but are spaced apart from each other and in particular located approximately in the middle of the longitudinal direction of the connector. Even by such a measure, the bending stiffness increased accordingly. An acting lever arm becomes appropriate shorter.

in the The prior art, however, was the Verrastungspunkt the shielding with the connection device at the front end of the electrical connection device provided and the locking plane was parallel to the base area the shielding plate executed.

By the double bending of thin webs of the shielding plate at the front end of the electrical connection device two bending points provided on the shielding, which as light resilient elements over the length of the electrical Connecting device a considerable game of shielding against allowed the connector of the conductor connection device.

By one from the front edge of the electrical connector more distant arrangement of Verrastungspunkte the locking units with the connector such a game is significantly reduced. Farther is through a transverse to the base of the shielding plate and, in particular, around a longitudinal edge of the electrical connection device bent latching device a higher bending stiffness achieved in the longitudinal direction.

Especially For example, the latch unit may be a recess in the side section be educated.

In In all embodiments, it is preferred that the detent unit of a front surface of the connector and / or the connecting device is spaced.

Of the Plug connector can have a latching section or a plurality of latching sections include. At least one of the locking portions on the connector can have at least one latching opening. Possible but it is also preferred that at least one of the latching sections protrudes from the connector and / or has latching hooks.

Further Advantages and features of the present invention will become apparent the exemplary embodiments, which in the following with reference to the accompanying figures will be explained.

In show the figures:

1 a perspective view of an electrical connecting device according to the invention;

2 the shield of the electrical connection device after 1 ;

3 another electrical connection device;

4 a perspective view of a third embodiment of an electrical connection device;

5 the shield of the electrical connection device after 4 ; and

6 A fourth embodiment of an electrical connection device according to the invention.

With reference to the 1 and 2 is a first embodiment of an electrical connection device 1 explained. The electrical connection device 1 is designed in particular as a plug connection device and comprises a shielding plate 6 , which has a flat surface 7 has and a cable connection tongue 16 at the rear end of the electrical connection device 1 is connected to the shields of the conductors to be connected.

The housing 2 The connector here consists of several housing parts 18 , which are arranged side by side in sliced construction.

On the long sides of the shielding plate 6 are side sections 11 and 12 of the shielding plate 6 around longitudinal edges 14 bent upwards. Front areas 21 the side sections 11 and 12 can in turn be bent by about 90 °, so that they are transverse to the longitudinal extent and transversely to the base 7 of the shielding plate extend. At the front areas 21 can screws 19 be provided to the electrical connection device 1 to screw with, for example, a cabinet.

Electric conductors 4 can with the conductor connection device 3 get connected.

The one at an angle 13 from the base 7 of the shielding plate 6 curved side sections 11 and 12 have here in the embodiment an angle 13 from 90 ° to the base 7 of the shielding plate 6 on. Through the bent side sections 11 and 12 the bending stability of the electrical connection device is increased, in particular the bending stiffness about an axis transversely to the longitudinal extent of the electrical connection device 1 significantly increased.

Here in the embodiment are from the front areas 21 the side sections 11 and 12 Rest units 8th and 9 approximately parallel to the side sections 11 and 12 led backwards. The locking units 8th and 9 the locking device 5 arise by punching narrow metal strips in the side sections 11 and 12 and are aligned approximately perpendicular to the base of the shielding plate. Due to the design, separate latching devices, which are outwardly from the base of the shielding plate 6 do not stand need. The development of the shielding plate 6 Therefore, it is more compact and allows a lower cut during punching for the production of the shielding 6 needed blanks.

The base area 7 of the shielding plate 6 is here in a plane 10 arranged. In other embodiments, it is also possible that the shielding 6 Also on the base is designed in three dimensions.

In 3 is a second embodiment of an electrical connection device 1 illustrated in which the latching device 5 basically the same way as in the embodiment of the 1 and 2 , Also in the embodiment according to 3 are side sections 11 and 12 from the base 7 of the shielding plate 6 bent upwards by about 90 ° and at the side sections 11 and 12 are locking units 8th and 9 provided by front areas 21 the side sections 11 and 12 are bent.

In contrast to the embodiment according to 1 and 2 can the cable connection tongue 16 in the exemplary embodiment 3 from the base 7 of the shielding plate protrude angled. For example, the cable connection tongue 16 at an angle 17 down or up from the ground 7 be angled. It is also possible that the cable connection tongue 16 yourself within the plane 7 of the shielding plate 6 located but to the longitudinal extent of the electrical connection device 1 an angle 17 having. It is also possible that both in the plane and in height an angle to the cable connection tongue 16 is present, so that the cable connection tongue 16 can basically extend in any spatial direction, if it makes sense, for example, the installation situation or required.

In 4 is a third embodiment of an electrical connection device according to the invention 1 shown, in which here the cable connection tongue 16 within the plane 10 the base area 7 located. Again, the side sections 11 and 12 from the base 7 provided at an angle of about 90 ° to the top and at the side sections 11 and 12 are locking units 8th and 9 arranged to the shielding plate 6 with the housing 2 to lock.

In contrast to the preceding embodiments, the housing 2 here outwardly projecting locking sections 22 for locking with the locking units 8th and 9 while in the embodiments according to 1 - 3 on the housing latching openings 23 are provided in the the locking units 8th and 9 intervention.

Also at the in 4 illustrated embodiment, the locking plane is again approximately perpendicular to the base 7 the electrical connection device 1 so that a significantly higher bending stiffness results than in the prior art. The locking units 8th and 9 are on metal strips 15 provided by bending the side sections 11 and 12 arise.

The rest distance 24 from the front end and the front surface, respectively 24 the electrical connection means causes less play, so that the electrical connection device is more stable against bending influences than in the prior art, in which the locking took place at the front end of the connecting devices.

In 5 is the shielding plate 6 according to the embodiment according to 4 drawn in a perspective view, here it is clear that the locking units 8th and 9 in this embodiment as recesses in the side sections 11 and 12 are formed. locking lugs 20 allow the firm recording of the locking sections 22 of the housing 2 , Clearly recognizable here is that the locking plane approximately perpendicular to the base 7 of the shielding plate 6 is arranged.

In 6 is a fourth embodiment of the electrical connection device according to the invention 1 shown. In the 6 illustrated electrical connection device 1 again has a housing 2 for the electrical connection device 3 and over a shielding plate 6 , which is essentially here again within the plane 10 the base area 7 extends.

Also in this embodiment are side sections 11 and 12 along side longitudinal edges 14 of the shielding plate 6 upwards towards the case 2 bent.

Two tab-shaped locking units 8th and 9 serve to receive corresponding latching sections 22 with detent openings 23 of the housing 2 , Here in the embodiment according to 6 becomes the case 2 from above onto the shielding plate 8th deferred and it will be the rest sections 22 with the locking units 8th and 9 the shielding plate locked.

In the previous embodiments, however, was the case 2 in each case from behind on the shielding plate 6 put on and the latching sections were by a forwardly extending movement with the locking units 8th and 9 of the shielding plate 6 locked.

As well as in the embodiments according to the 1 - 5 lies the Verrastungsebene in the embodiment 6 again approximately perpendicular to the base 7 of the shielding plate 6 , Also the in 4 shown distance 24 the resting points of the front surface 25 the electrical connection device 1 Here is so great that a game during movements and bends of the case 2 opposite the shielding plate 6 compared to the prior art is significantly reduced, so that a more stable and resilient electrical connection device 1 is made available.

For locking the locking sections 22 of the housing 2 with the locking units 8th and 9 are in the exemplary embodiment after 6 locking lugs 20 at the locking units 8th and 9 intended. The resting sections 22 of the housing 2 are in the embodiment after 6 have latching openings, in which the locking units 8th respectively. 9 are inserted until the locking lugs 20 engage at the upper end of the detent openings.

Both in the embodiment according to 6 as well as the embodiments according to 1 and 2 and 4 and 5 it is as well as in the embodiment 3 possible that the cable enclosure tongue 16 at any solid angle from the base 7 of the shielding plate 6 in order to take account of the respectively required conditions regarding the connection.

1

connecting device

2

casing

3

Wire connection device

4

ladder

5

locking device

6

shield

7

Floor space

8th

catch unit

9

catch unit

10

level

11

side portion

12

side portion

13

angle

14

longitudinal edge

15

metal strip

16

Cable tongue

17

angle

18

housing part

19

screw

20

locking lug

21

front Area

22

detent portion

23

latching opening

24

distance

25

front surface

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 20316262 U1 [0003]
• - DE 202006016545 U1 [0004]

Claims (14)

Connection device ( 1 ) with at least one housing ( 2 ) and at least one conductor connection device ( 3 ) for connecting at least one conductor ( 4 ), as well as at least one via at least one latching device ( 5 ) with the housing ( 2 ) associated shielding plate ( 6 ) for shielding the conductor connection device ( 3 ), characterized in that the latching device ( 5 ) at least one inclined to the base ( 7 ) of the shielding plate ( 6 ) arranged catching unit ( 8th . 9 ) having. Connecting device according to claim 1, wherein the detent unit ( 8th . 9 ) across the base ( 7 ) of the shielding plate ( 6 ) is aligned. Connection device ( 1 ) according to one of the preceding claims, wherein at least one side section ( 11 . 12 ) of the shielding plate ( 6 ) from the base ( 7 ) of the shielding plate ( 6 ) is angled. Connecting device according to claim 1 or 2, wherein the side section ( 11 . 12 ) of the shielding plate ( 6 ) to a base area ( 7 ) of the shielding plate ( 6 ) at an angle ( 13 ) between 30 ° and 150 ° and in particular at an angle ( 13 ) between 60 ° and 120 ° and preferably at an angle ( 13 ) is between 80 ° and 100 °. Connecting device according to claim 4, wherein at least one latching device ( 5 ) on the side section ( 11 . 12 ) is arranged. Connecting device according to at least one of the preceding claims, wherein the base area ( 7 ) is just about trained. Connection device ( 1 ) according to one of the preceding claims, wherein the detent unit ( 8th . 9 ) approximately parallel to the side section ( 11 . 12 ) is aligned. Connection device ( 1 ) according to one of the preceding claims, wherein the detent unit ( 8th . 9 ) by punching from a region of the shielding plate ( 6 ) is formed. Connection device ( 1 ) according to one of the preceding claims, wherein the detent unit ( 8th . 9 ) in the page section ( 11 . 12 ) is imprinted. Connection device ( 1 ) according to one of the preceding claims, wherein the detent unit ( 8th . 9 ) from a sheet metal strip ( 15 ) of the shielding plate ( 6 ) is formed. Connection device ( 1 ) according to one of the preceding claims, wherein the detent unit ( 8th . 9 ) as a recess in the side portion (FIG. 11 . 12 ) is trained. Connection device ( 1 ) according to one of the preceding claims, wherein the detent unit ( 8th . 9 ) from a front surface ( 25 ) is spaced. Connection device ( 1 ) according to one of the preceding claims, wherein a latching section ( 22 ) on the housing ( 2 ) has at least one latching opening. Connection device ( 1 ) according to one of the preceding claims, wherein a latching section ( 22 ) on the housing ( 2 ) Has latching hooks.