DE202016008576U1 - Electrical connection and connection terminal - Google Patents

Abstract

Terminal block with an insulating material housing (10), the insulating housing (10) having a conductor guide channel (13) merging into a connection space (12), a terminal point (15) and a spring clamping element (16) formed in the terminal space (12). 17) for connection of an electrical conductor (14) is arranged and the insulating material (10) further for receiving an actuating element (19, 20), by means of which the clamping point (17) of the by the spring clamping element (16) effected clamping position in an open position and vice versa, equipped actuating channel (18), characterized in that the actuating channel (18) is provided with tilting surfaces (21) which are adapted, the actuating element (18) under latching in the open position by tilting in the actuating channel (18 ) to keep.

Description

The present invention relates to a terminal with an insulating housing, wherein the insulating housing has a transition into a terminal compartment conductor guide channel, in the terminal compartment is formed of a contact element and a spring element clamping point for connecting an electrical conductor and the insulating housing further comprises a for receiving an actuating element, by means of which the clamping point of the effected by the spring clamping element clamping position in an open position and vice versa can be converted, equipped actuating channel. Furthermore, the invention relates to a connection terminal for electrically connecting at least two electrical conductors.

Such terminals are for example from the German utility model DE 20 2009 002 324 U1 known. In the known terminal, the nip is transferred by means of a screwdriver as an actuating element of the clamping position in an open position and vice versa. Another clamp goes out of the document DE 197 11 051 C5 out. The actuation of the clamping point takes place here by the insertion of an actuating element in an actuating channel.

The disadvantage is that in the known electrical terminals, the actuator is to be held in the actuating channel against spring pressure to hold the terminal in the open position. Only after the insertion of the electrical conductor in the nip, the actuator can be removed from the actuating channel again, so that the electrical conductor is mechanically held by return to the clamping position in the nip and electrically contacted. The operation of the known terminals is so expensive, especially one-handed operation when connecting electrical conductors is excluded in this way.

It is therefore an object of the present invention to propose a terminal that is comfortable to use and flexible in the application. Furthermore, the object is to propose a corresponding connection terminal for connecting at least two electrical conductors.

The object is achieved by a terminal with the features mentioned above in that the actuating channel is equipped with tilting surfaces which are adapted to hold the confirmation element under latching in the clamping position by tilting in the actuating channel. This offers the advantage that the connection terminal according to the invention offers a high level of operating convenience. In particular, it is possible to carry out the connection of electrical conductors with one hand. For this purpose, the actuating element is inserted into the actuating channel and thus transferred the clamping point from the clamping position to the open position. Due to the tilting surfaces of the actuating channel, the actuating element is automatically held in reaching the open position in the actuating channel. A self-resetting of the clamping point from the open position into the clamping position is prevented in the way, so that the clamping point automatically remains in the open position. The electrical conductor is then introduced via the conductor guide channel in the connection space and then transferred the clamping point by removing the actuating element from the actuating channel back into the clamping position. Alternatively, the actuating element is arranged movably mounted as part of the terminal according to the invention in the actuating channel. In this case, the clamping point is transferred by pressing the actuating element into the actuating channel in the open position. The self-holding function described above corresponds to that when using an external actuating element.

An expedient embodiment of the invention provides that the tilting surfaces are formed by offset surfaces of the channel inner wall of the actuating channel. Thus, the latching of the actuator is advantageously achieved without the use of other moving parts. On the one hand, this has an advantageous effect on the robustness of the connecting terminal according to the invention and on the other hand, due to the simple design, is favorable in terms of production. The offset surfaces are formed for example by pre-and / or recessed channel inner walls of the actuating channel.

A preferred embodiment of the invention is characterized in that the actuating channel is formed from at least two channel sections arranged one behind the other, so that their longitudinal axes are aligned parallel to one another in each case. Thus, the formation of the tilting surfaces is achieved in a particularly simple manner. In other words, the actuating channel is designed and configured to be pivoted.

According to a further preferred embodiment, a second channel section is offset relative to a first channel section in the direction of the conductor guide channel. This offers the advantage that an externally introduced into the actuating channel actuator is tilted away from the conductor guide channel, so that the actuator of the electrical conductor to be connected as far as possible and this distance can be introduced without collision in the conductor insertion channel. moreover supports the inclination of the actuating element the process of tilting in the actuating channel and thus supports the self-holding effect in the open position. Preferably, the first channel section merges into the second channel section to form a slanted transition channel section.

Advantageously, the spring clamping element has at least one pressure surface, which is adapted to press the actuating element in the open position under the application of the holding force against at least one of the tilting surfaces. The pressure surface of the Federerklemmelements is therefore part of the self-holding mechanism, which ensures the persistence of the nip in the open position on the one hand and the automatic holding of the actuating element in the actuating channel.

According to a further preferred embodiment of the invention, the spring clamping element has a guide surface which is set up as an abutment for the actuating element. The guide surface has the advantage that the spring clamping element can be transferred by means of the actuating element with the least possible expenditure of force from the clamping position into the open position. The guide surface is therefore advantageously arranged such that the actuating element is held automatically by tilting shortly before reaching the open position in the actuating channel.

A further advantageous embodiment of the invention is characterized in that the actuating element is arranged displaceably mounted in the actuating channel. In this way, the actuating element is integrated in the insulating housing, so that no further separate actuating elements for operating the terminal according to the invention are required.

According to a further preferred embodiment of the invention, at least one of the tilting surfaces is formed as an undercut and the actuating element has a counter-surface, which is adapted to come into abutment with the undercut in the open position. The distinction and the opposing surface thus form a travel limit for the actuating element, so that the end position of the actuating element is exactly defined in the clamping position.

Furthermore, the object is achieved by the above-mentioned connection terminal, wherein the connection terminal comprises at least two of the above-described terminals and the contact elements of the terminals are electrically connected to each other.

• 1 eine schematische Ansicht der erfindungsgemäßen Verbindungsklemme im Querschnitt mit eingeführten elektrischen Leitern,
• 2 eine weitere schematische Ansicht der erfindungsgemäßen Verbindungsklemme im Querschnitt mit externem Betätigungselement,
• 3 eine schematische Ansicht der erfindungsgemäßen Verbindungsklemme im Querschnitt mit internem Betätigungselement,
• 4 eine Detaildarstellung der erfindungsgemäßen Anschlussklemme,
• 5 eine Seitenansicht des Federklemmelements in der Offenstellung und
• 6 eine Seitenansicht des Federklemmelements in der Klemmstellung.

Further preferred and / or useful features and embodiments of the invention will become apparent from the dependent claims and the description. Particularly preferred embodiments will be explained in more detail with reference to the accompanying drawings. In the drawing shows:

• 1 a schematic view of the connecting terminal according to the invention in cross section with inserted electrical conductors,
• 2 a further schematic view of the connecting terminal according to the invention in cross section with external actuating element,
• 3 a schematic view of the connecting terminal according to the invention in cross section with internal actuating element,
• 4 a detailed representation of the terminal according to the invention,
• 5 a side view of the Federerklemmelements in the open position and
• 6 a side view of the Federerklemmelements in the clamping position.

The terminal according to the invention is described below with reference to the in 1 . 2 and 3 illustrated inventive connection terminal explained in more detail. The terminal according to the invention has an insulating material 10 on, advantageously at the bottom with connecting means 11 is equipped for DIN rail mounting. In the insulating housing 10 there is a connection room 12 that is over a wire guide channel 13 is accessible from the outside. About the conductor guide channel 13 of the electrical conductor to be connected 14 be introduced into the terminal room. In the terminal room 12 are a contact element 15 and a spring clamp 16 arranged, which is the nip 17 form.

Preferably, the nip is 17 - As shown in the drawing - designed as a pull-through terminal. For this purpose, the contact element 15 provided with a recess through which the electrical conductor is passed. Like from the 1 can be seen, is the spring clip 16 against the contact element 15 biased. In this way, the spring clamp takes 16 each automatically a clamping position. The insulating material housing 10 further has an actuating channel 18 on, for receiving an actuating element 19 . 20 is designed and furnished. By means of the actuating element 19 . 20 is the nip 17 from the through the spring clamp element 16 brought about clamping position in an open position and vice versa set up.

In 2 is the connecting terminal according to the invention or the invention Terminal block in cross-section with external actuator 19 shown. The actuating channel 18 is with tilting surfaces 21 equipped, which are set up, the external actuator 19 under latching in the open position by tilting in the actuating channel 18 to keep.

Alternatively, an internal actuator 20 - like in the 3 shown - provided. By means of the tilting surfaces 21 becomes the respective actuator 19 . 20 after insertion into the actuating channel 18 held automatically, so that the nip 17 remains in the open position. In other words, define the tilting surfaces 21 Investment points for the actuator 19 . 20 at which the actuating element 19 . 20 for the purpose of self-holding in the open position by tilting is applied.

Preferably, the tilting surfaces 21 through offset surfaces 22 the channel inner wall 23 educated. As in detail according to 4 shown are the offset surfaces 22 in particular by projections / recesses of the channel inner wall 23 of the actuating channel 18 educated.

Further preferred is the actuating channel 18 from at least two channel sections arranged one behind the other 24 . 25 educated. The channel sections 24 . 25 are arranged such that their longitudinal axes 26 . 27 are each offset parallel to each other. In other words, the actuating channel 18 formed swung. For this purpose, for example, a second channel section 25 opposite a first channel section 24 in the direction of the conductor guide channel 13 staggered. The actuating channel 18 thus pivots in the direction of the conductor guide channel 13 , The first channel section 24 and the second channel section 25 are advantageously by means of a transition channel section 28 connected with each other. In other words, the first channel section goes 24 forming the slanted passage section 28 in the second channel section 25 above.

The 5 and 6 show side views of the spring clamp element 16 each in the open and clamping position. The spring clamp element 16 has at least one contact surface 29 on which is set, the actuator 19 . 20 in the clamping position under Haltekraftbeaufschlagung against at least one of the tilting surfaces 21 to press. The area of the pressure surface 29 is in the 5 and 6 each identified by a solid line.

Preferably, the spring clamping element has a spring-movable spring leg 30 and a holding leg 31 on. Further preferred is the spring clamping element 16 - as in the 1 to 4 shown - to a holding element 32 of the insulating material housing 10 arranged so that the retaining leg 31 is fixedly attached to the insulating housing. The pressure surface 29 is advantageously located on the spring leg 30 in the immediate vicinity of the transition to the holding leg 31 , Further preferred is the spring leg 30 in the area of the pressure surface 29 formed curved.

To the pressure surface 29 closes in the direction of the free end 33 a guide surface 34 on, as a counter to the actuator 19 . 20 is set up. The area of the guide surfaces 34 is in the 4 and 5 indicated by a dotted line. About the guide surface 34 can the spring clamp 16 or its spring leg 30 over the actuator 19 . 20 be transferred from the clamping position in the open position and vice versa.

More preferably closes to the guide surface 34 in the direction of the free end 33, a conductor guide surface 35 which is set up with a leader 36 of the electrical conductor 14 to come into contact. This allows direct plugging of the electrical conductor in which the spring clamp element 16 directly through the inserted electrical conductor 14 is moved from the clamping position to the open position and the electrical conductor 14 subsequently due to Federkraftbeaufschlagung means of Federerklemmelements 16 mechanically held and electrically contacted.

In the 3 shown embodiment of the connecting terminal according to the invention or the terminal of the invention provides that the internal actuator 20 is installed in the terminal, so that for actuating the nip 17 no separate external actuator 19 is needed. For this purpose, the actuating element 20 in the actuating channel 18 slidably mounted arranged. Essentially, the actuator is 20 in the direction of the actuating channel 18 slidably furnished. Preferably, one of the tilting surfaces 21 designed as an undercut. The actuator 20 has a counter surface 37 which is set up to come into contact with the undercut in the open position.

As can be seen from the drawing, the connecting terminal according to the invention comprises two of the terminals according to the invention, wherein the contact elements 15 the two terminals are electrically connected to each other. However, the terminal described above is not limited solely to use in the connection terminal according to the invention. Rather, the terminal of the invention for Connecting electrical conductors 14 to be used on other facilities.

LIST OF REFERENCE NUMBERS

10

Insulated

11

connecting means

12

connection space

13

Wire management channel

14

electrical conductor

15

contact element

16

Spring clamping element

17

nip

18

actuating channel

19

Actuator (external)

20

Actuator (internal)

21

Wedging surfaces

22

offset surfaces

23

sewer inner

24

Channel section (first)

25

Channel section (second)

26

Longitudinal axis (first)

27

Longitudinal axis (second)

28

Transition duct section

29

pressure surface

30

spring leg

31

holding leg

32

retaining element

33

free end (of the spring leg)

34

guide surface

35

Head guide surface

36

conductor end

37

Counter support surface

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202009002324 U1 [0002]
• DE 19711051 C5 [0002]

Claims (10)

Terminal block with an insulating material housing (10), wherein the insulating housing (10) has a conductor guide channel (13) merging into a connection space (12), in the connection space (12) a clamping point formed by a contact element (15) and a spring clamping element (16) ( 17) for connection of an electrical conductor (14) is arranged and the insulating material (10) further for receiving an actuating element (19, 20), by means of which the clamping point (17) of the by the spring clamping element (16) effected clamping position in an open position and vice versa, equipped actuating channel (18), characterized in that the actuating channel (18) is provided with tilting surfaces (21) which are adapted, the actuating element (18) under latching in the open position by tilting in the actuating channel (18 ) to keep. Connection terminal after Claim 1 , characterized in that the Verkantungsflächen (21) by offset surfaces (22) of the channel inner wall (23) of the actuating channel (18) are formed. Connection terminal according to one of Claims 1 or 2 , characterized in that the actuating channel (18) from at least two successively arranged channel sections (24, 25) is formed, so that their longitudinal axes (26, 27) are each aligned offset parallel to each other. Connection terminal after Claim 3 , characterized in that a second channel portion (25) opposite to a first channel portion (24) is arranged offset in the direction of the conductor guide channel (13). Connection terminal according to one of Claims 3 to 5 characterized in that the first channel section (24) merges into the second channel section (25) to form a transitional channel section (28) disposed in an inclined position. Connection terminal according to one of Claims 1 to 5 , characterized in that the spring clamping element (16) has at least one pressure surface (29) which is adapted to press the actuating element (19, 20) in the open position under Haltkraftbeaufschlagung against at least one of the tilting surfaces (21). Connection terminal according to one of Claims 1 to 6 , characterized in that the spring clamping element (16) has a counter surface for the actuating element (19, 20) arranged guide surface (34). Connection terminal according to one of Claims 1 to 7 , characterized in that the actuating element (20) in the actuating channel (18) is arranged displaceably mounted. Connection terminal after Claim 8 , characterized in that at least one of the tilting surfaces (21) is formed as an undercut and the actuating element (20) has a counter-bearing surface (37) which is adapted to come into abutment with the undercut in the open position. Connecting terminal for electrically connecting at least two electrical conductors (14) comprising at least two terminals according to one of Claims 1 to 9 , wherein the contact elements (15) of the terminals are electrically conductively connected to each other.

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