DE102018116665A1 - Conductor terminal - Google Patents

Abstract

The invention relates to a conductor connecting terminal (1) with a contact frame (2) and with a clamping spring (3) for connecting an electrical conductor, the contact frame (2) comprising a busbar section (4), a partition (5) and a wall opening (6) The clamping spring (3) has a clamping leg (7), which is arranged at least partially in the space between the busbar section (4) and the partition (5) and has a clamping edge (8) aligned with the busbar section (4), a spring arch (9) and has a contact leg (10), and the clamping edge (8) and the busbar section (4) form a clamping point for the electrical conductor and an actuating section (17) for opening and closing the clamping point is arranged on the clamping leg (7) of the clamping spring (3) is, the actuating section (17) protruding into the wall opening (6) and at least in the closed state of the clamping point on a side facing away from the clamping point next to the partition (5) stretches. It is provided that the conductor connection terminal (1) has an actuating element (14) which is pivotably arranged above the busbar section (4) and is operatively connected to an actuating finger (18) which extends next to the partition (5) to the actuating section (17) stands with the actuating section (17) of the clamping spring (3) and is designed to open or close the clamping point.

Description

The invention relates to a conductor connection terminal with a contact frame and with a clamping spring for connecting an electrical conductor, the contact frame having a busbar section, a partition and a wall opening, the clamping spring having an at least partially arranged in the space between the busbar section and the partition wall with a leg has a spring edge and a contact leg aligned with the busbar section, and the clamping edge and the busbar section form a clamping point for the electrical conductor and an actuating section for opening and closing the clamping point is arranged on the clamping leg of the clamping spring, the actuating section protruding into the wall opening and extends at least in the closed state of the clamping point on a side facing away from the clamping point next to the partition.

DE 36 37 316 A1 shows a connecting terminal with a connecting plate and a clamping spring, the clamping spring and the connecting plate forming a clamping point for an electrical conductor to be clamped. A release member is guided through an opening of the connection plate and lies on a sliding surface of the clamping spring, the release member being set up to open or close the clamping point.

DE 10 2015 115 791 B4 discloses a conductor connection contact element with a busbar and a clamping spring, the clamping spring being arranged within the busbar piece. The busbar piece has two side walls, an actuating section of the clamping spring protruding through a recess on one of the side walls and the actuating section being set up for opening and closing a clamping point for an electrical conductor to be clamped by means of an actuating tool.

Based on this, it is an object of the present invention to provide an improved conductor terminal.

The object is achieved by the conductor terminal with the features of claim 1. Advantageous embodiments are described in the subclaims.

It is proposed that the conductor connection terminal have an actuating element which is arranged pivotably over the busbar section and is in operative connection with the actuating section of the clamping spring with an actuating finger extending next to the partition wall and is designed to open or close the clamping point. In this way, a lever-operated conductor connection terminal can be provided, the connection region for the electrical conductor and the lever movement region are separated from one another and thus undesired interactions can be avoided.

It is conceivable that the busbar section and the partition are formed in one piece from the contact frame and thus from the same material. Alternatively, the busbar section can be formed from a different material than the partition. For example, the partition can consist of a plastic, while the busbar section is made of an electrically conductive metal.

It is also conceivable that the function of the busbar section and the partition are combined in one element. The busbar section acts as an electrically conductive connection and as a partition for the actuating section of the clamping spring, in that it is passed through the wall opening of the partition. The clamping point and the actuating section of the clamping spring are thus spatially separated by the busbar section.

The partition can be arranged between the busbar section and the wall opening and the actuating finger can protrude into the wall opening. This has the advantage that the construction dimensions for the conductor terminal according to the invention can be reduced in order to provide a particularly compact conductor terminal.

The actuating element can be mounted with a bearing opening and a pin which plunges into the position opening. It is also advantageous if the bearing opening is an elongated hole and the pin is slidably mounted in the elongated hole. In this way, reliable guidance of the actuating element can be provided, which enables the clamping point to be opened or closed.

The actuating element can be self-locking in its position in an open and / or a closed position of the clamping point. It is also advantageous if the actuating finger is directed from a pivot bearing area of the actuating element to rest on the actuating section of the clamping spring out of the direction of force of the clamping spring pointing towards the pivot bearing area and towards the spring arch, the actuating finger in the open position between one of the clamping limbs and the pivot bearing area Perpendicular of the clamping leg and the Spring arch rests on the actuating section. In this way, an actuating element can be provided which remains self-locking in the open position without being dependent on additional aids or constructive measures. The pivot bearing area is the area in which the actuating element can be pivoted into an open position or a closed position.

The contact leg of the clamping spring can have at least one curvature. The spring root is relieved by a curvature of the contact leg and thus increases the elastic deformability. On the one hand, a low overall height can be achieved by increasing the maximum deflection of the spring. The occurrence of fatigue can thus be reduced and the frequency of actuations increased. On the other hand, the curvature of the contact leg prevents the spring from falling out of the busbar section, and in contrast to known conductor connecting terminals, no additional fixing elements have to be used. This has the advantage that a bulk connector suitable for bulk goods can be provided.

The curvature of the contact leg of the clamping spring is not limited to one of the above-described and subsequent embodiments, but rather can also be used in other conductor connection terminals in order to achieve a low overall height and / or to fix the clamping spring without additional elements.

The contact leg can be supported on a contact surface of the contact frame diametrically opposite the busbar section. It is also advantageous if the contact leg is held in a form-fitting manner on the bearing surface. This has the advantage that a bulk connector suitable for bulk goods can be provided. It is advantageous if the contact leg is curved. It is conceivable that the contact leg is supported at certain points by the curvature at two points on the contact surface of the contact frame.

A plug contact connection for plug contacting of a plug element can be arranged on the contact frame. It is also advantageous if the plug contact connection is a fork contact formed in one piece with the contact frame. In this way, a conductor terminal can be provided, which enables an electrically conductive connection with a plug contact element inserted into the conductor terminal.

The conductor connection terminal can have an insulating material housing with a conductor insertion opening for inserting the electrical conductor, the contact frame and the actuating element being arranged in the insulating material housing. It is furthermore advantageous if a plurality of contact frames, each with associated actuating elements and a clamping spring, are accommodated in the insulating material housing, wherein in each case there is a conductor insertion opening opening out to a clamping point in the insulating material housing. Conductor terminals with different numbers of poles are conceivable depending on the application.

The indefinite term "a" is to be understood as such and not as a numerical value. The insulating housing can therefore e.g. for a multi-pole conductor connection terminal also have additional conductor entry openings, plug contact openings, busbar sections and associated clamping springs.

• 1 - eine Leiteranschlussklemme mit einer geschlossenen Klemmstelle in einer seitlichen Schnittansicht;
• 2 - eine Leiteranschlussklemme nach 1 mit einer geöffneten Klemmstelle in einer seitlichen Schnittansicht;
• 3 - ein Kontaktrahmen in einer perspektivischen Ansicht;
• 4 - ein Kontaktrahmen nach 3 in einer gedrehten Stellung;
• 5 - eine Klemmfeder zum Einsatz in einem Kontaktrahmen nach 3 und 4;
• 6 - ein Betätigungselement zur Lagerung in einem Kontaktrahmen nach den 3 und 4;
• 7 - ein Kontakteinsatz aus den Komponenten der 3 bis 6 in einer Seitenansicht;
• 8 - Eine mehrpolige Leiteranschlussklemme in einer perspektivischen Ansicht.

The invention is explained in more detail below by way of example with the accompanying drawings. Show it:

• 1 - A conductor terminal with a closed terminal point in a side sectional view;
• 2 - a conductor terminal after 1 with an open clamping point in a side sectional view;
• 3 - A contact frame in a perspective view;
• 4 - a contact frame after 3 in a rotated position;
• 5 - A clamping spring for use in a contact frame 3 and 4 ;
• 6 - An actuator for storage in a contact frame according to the 3 and 4 ;
• 7 - a contact insert from the components of the 3 to 6 in a side view;
• 8th - A multi-pole conductor terminal in a perspective view.

1 shows a conductor terminal 1 in a side sectional view. The conductor terminal 1 has a contact frame 2 and a clamp spring 3 for clamping an electrical conductor, the clamping spring 3 on the contact frame 2 is arranged. The contact frame 2 has a track section 4 and a partition 5 , the partition 5 a wall opening 6 Has. The clamp spring 3 has a clamp leg 7 with one to the track section 4 aligned clamping edge 8th , the clamping edge 8th and the Busbar section 4 form a clamping point for an electrical conductor to be clamped. The clamp spring 3 still has a spring arch 9 that into an investment leg 10 transforms. The conductor rail section 4 and the partition 5 are formed in one piece from the same material. But it is also conceivable that the partition 5 and the busbar section 4 can be formed from different materials.

It becomes clear that the investment leg 10 on the track section 4 opposite side on the contact frame 2 is present and is arched in this area. The investment leg 10 is therefore not flat on the contact frame 2 but rather only touches it on two points. By such a curvature of the contact leg 10 the bending joint can be relieved, so that the number of load changes of the clamping spring 3 can be increased and on the other hand no additional elements are required to the clamping spring 3 in the contact frame 2 to keep. The clamp spring 3 is therefore form-fitting with the contact frame 2 connected and thus provides a contact insert suitable for bulk goods.

It also becomes clear that on the contact frame 2 a plug contact connection 11 is arranged for plug contacting of a plug contact element. The plug contact connection 11 is in one piece with the contact frame 2 formed fork contact. It can be seen that the clamping point for the electrical conductor to be clamped out of the clamping edge 8th the clamping spring 3 and the busbar section 4 is formed, the clamping point below the actuating element 14 and above the plug contact connection 11 is arranged.

The conductor terminal 1 has an insulating housing 12 , wherein the contact frame and the clamping spring as a contact insert in the insulating housing 12 are arranged. The insulating housing 12 has a conductor entry opening 13 for inserting the electrical conductor. It becomes clear that on the insulating housing 12 an actuator 14 is arranged, the actuating element 14 over the track section 4 is pivotally arranged. The actuator 14 stands with an actuating section (not shown) of the clamping spring 3 in operative connection such that the actuating element 14 is designed to open or close the terminal point.

It can also be seen that the actuating element is a pin 15 has, the pin 15 into a bearing opening designed as an elongated hole 16 of the insulating housing 12 immersed and thus the actuator 14 swiveling in the bearing opening 16 can be performed. 1 shows the conductor terminal 1 in a closed position.

2 shows a conductor terminal 1 to 1 in an open position. It becomes clear that the clamping spring 3 an operating section 17 has, the operating section 17 from the clamping leg 7 the clamping spring 3 protrudes. The operating section 17 protrudes into the wall opening 6 and extends to a side facing away from the clamping point next to the partition 5 ,

It is also clear that the actuating element 14 an actuating finger 18 has, with the actuating finger 18 next to the partition 5 on the side facing away from the clamping point to the actuating section 17 the clamping spring 3 extends and with the operating section 17 is operatively connected such that the actuating element 14 is designed to open or close the terminal point. The operating section 17 is at one end of the clamping leg 7 arranged so that a low actuation force for deflecting the clamping leg 7 the clamping spring and thus leads to the opening of the clamping point. This enables easy handling of the conductor connection terminal 1 ,

The actuator 14 can be locked in the open position by the actuating finger 18 of the actuator 14 from the pivot bearing area in the area of the pin 15 of the actuator 14 to rest on the operating section 17 the clamping spring 3 from the direction of force of the clamping spring pointing towards the swivel bearing area 3 out and to the spring arch 9 is directed, the actuating finger 18 in the open position between one of the clamping legs 7 perpendicular to the swivel bearing area of the clamping leg 7 and the featherbow 9 on the operating section 17 rests. Thus, the operating section 14 held in the open position by pressing on the operating finger 18 effective force of the clamping spring 7 an independent closing of the actuating element 14 counteracts.

3 and 4 show a contact frame 2 for a conductor terminal in a perspective view. It is clear that the contact frame is made in one piece. The contact frame 2 is U-shaped, the busbar section 4 into the partition 5 merges and then into one of the busbar section 4 opposite contact surface 19 transforms.

Alternatively, however, it is also conceivable for the partition to consist of one of the busbar sections 4 different material such as a plastic, so the nip and the operating section 17 to electrically isolate the clamping spring from each other.

5 shows a clamping spring 3 with a curved contact leg 10 , a spring bow 9 and a clamping leg 7 , with the clamping leg 7 a clamping edge 8th and an operating section 17 Has. The clamp spring 3 is set up for this in a contact frame 2 to be used positively. The actuating section protrudes 17 into the wall opening 6 the partition 5 and thus extends to between the busbar section 4 and the clamping edge 8th Formed terminal point facing away from the partition 5 to thus the operating section 17 separate from the terminal point.

6 shows an actuator 14 , wherein the actuator 14 on the track section 4 of a contact frame 2 after the 3 and 4 can be stored. It becomes clear that when resting on the conductor rail section 4 the operating finger 18 of the actuator next to the partition 5 to the operating section 17 one in the contact frame 2 used clamping spring 3 to 5 extends and with the operating section 17 is operatively connected in such a way that the actuating element 14 is set up to open or close the terminal point. The operating finger 18 can be in the wall opening 6 protrude to be operatively connected to the actuating section 17 the clamping spring 3 to kick. The actuating element has a transverse to the actuating finger 18 extending spigot 15 , the pin 15 the actuating element is set up for this 14 to be pivotally mounted on a bearing opening (not shown) of an insulating material housing (not shown). The axis of the pin 15 thus forms the swivel bearing area of the actuating element 14 ,

It becomes clear that the operating finger 18 laterally along a longitudinal axis L of the actuator 14 from the the cone 15 opposite side protrudes from the pivot bearing area, thus the partition 5 of the contact frame 2 to grasp laterally. The actuator 14 is therefore only about a single pin 15 stored. But it is also conceivable that the operating lever 14 with several cones 15 or can be stored in another way.

It is also clear that the operating finger 18 from a plane through the longitudinal axis L and a transverse axis Q of the actuator 14 is spanned, protrudes so that the actuating element 14 on the busbar section 4 of the contact frame 2 is self-locking in an open or closed position, one from the clamping spring 3 resulting force in the open position of a closing movement of the actuating element 14 counteracts.

7 shows a contact insert 20 for use in an insulating housing (not shown) with a contact frame 2 after the 3 and 4 , a clamping spring 3 after 5 and an actuator 14 after 6 , wherein the actuator 14 on the track section 4 of the contact frame 2 auflagert. The contact insert is shown 20 in a side view, the side of the partition facing away from the clamping point 5 can be seen.

It becomes clear that the operating section 17 the clamping spring 3 through the wall opening 6 projects through and extends to the side facing away from the clamping point. It also becomes clear that this is the operating finger 18 of the actuator 14 the contact frame 2 engages laterally and on the actuating section 17 the clamping spring 3 is applied.

The actuating element is shown 14 in an open position. The operating finger 18 of the actuator 14 is from the swivel bearing area, in the area of the mounting of the actuating element 14 on the track section 4 , to rest on the operating section 17 the clamping spring 3 out of the direction of force of the clamping spring pointing towards the swivel bearing area and towards the spring arch 9 directed towards, the actuating finger 18 in the open position between one of the clamping legs 7 perpendicular to the swivel bearing area 21 of the clamping leg 7 and the featherbow 9 on the operating section 17 rests. This makes the actuator 14 self-locking in the open position without additional elements. It is conceivable that the actuating finger up to that of the clamping leg 7 perpendicular to the swivel bearing area 21 of the clamping leg 7 on the operating section 17 can support so that the actuator 14 is self-locking in the open position.

8th shows a multi-pole conductor terminal 1 , with multiple contact frames 2 each with an associated actuator 14 and clamping springs (not shown) in an insulating housing 12 are recorded, each with a conductor insertion opening opening out to a clamping point 13 in the insulating material housing 12 is arranged. It is clear that the conductor terminal according to the invention 1 can be designed with multiple poles to enable the simultaneous connection of several electrical conductors. The formation of the conductor terminal 1 is not on a three-pin conductor connection terminal 1 limited, rather any training is limited in the number of Poles of such a conductor terminal 1 conceivable.

LIST OF REFERENCE NUMBERS

1

Conductor terminal

2

contact frame

3

clamping spring

4

Busbar section

5

partition wall

6

wall opening

7

clamping leg

8th

clamping edge

9

spring bow

10

contact leg

11

Tab terminal

12

Insulated

13

Conductor insertion opening

14

actuator

15

spigot

16

bearing opening

17

actuating section

18

actuating fingers

19

contact surface

20

contact insert

21

vertical

L

longitudinal axis

Q

transverse axis

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included 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.

Patent literature cited

• DE 3637316 A1 [0002]
• DE 102015115791 B4 [0003]

Claims (14)

Conductor terminal (1) with a contact frame (2) and with a clamping spring (3) for connecting an electrical conductor, the contact frame (2) having a busbar section (4), a partition (5) and a wall opening (6), the Clamping spring (3) has a clamping leg (7), which is arranged at least partially in the space between the busbar section (4) and the partition, with a clamping edge (8) aligned with the busbar section (4), a spring arch (9) and a contact leg (10), and the clamping edge (8) and the busbar section (4) form a clamping point for the electrical conductor and an actuating section (17) for opening and closing the clamping point is arranged on the clamping leg (7) of the clamping spring, the actuating section (17 ) protrudes into the wall opening (6) and extends at least in the closed state of the clamping point on a side facing away from the clamping point next to the partition (5), characterized that the conductor connecting terminal (1) has an actuating element (14) which is arranged pivotably above the busbar section (4) and with an actuating finger (18) extending next to the partition (5) to the actuating section (17) in operative connection with the actuating section (17) the clamping spring (3) stands and is designed to open or close the clamping point. Conductor terminal (1) after Claim 1 , characterized in that the actuating element (14) is supported on the busbar section (4). Conductor terminal (1) after Claim 1 or 2 , characterized in that the partition (5) is between the busbar section (4) and the wall opening (6) and the actuating finger (18) projects into the wall opening (6). Conductor terminal (1) according to one of the Claims 1 to 3 , characterized in that the actuating element (14) is mounted with a bearing opening (16) and a pin (15) which plunges into the bearing opening (16). Conductor terminal (1) after Claim 4 , characterized in that the bearing opening (16) is an elongated hole and the pin (15) is slidably mounted in the elongated hole. Conductor terminal (1) according to one of the Claims 1 to 5 , characterized in that the actuating element (14) is self-locking in its position in an open and / or a closed position of the clamping point. Conductor terminal (1) after Claim 6 , characterized in that the actuating finger (18) is directed from the pivot bearing area to rest on the actuating section (17) of the clamping spring (3) out of the direction of force of the clamping spring (3) pointing towards the pivot bearing area and towards the spring arch (9), the Actuating finger (18) in the open position rests on the actuating section (17) between a perpendicular of the clamping leg (7) leading from the clamping leg (7) to the pivot bearing area and the spring arch (9). Conductor connection terminal (1) according to one of the preceding claims, characterized in that the contact leg (10) of the clamping spring (3) has at least one curvature. Conductor connection terminal (1) according to one of the preceding claims, characterized in that the contact leg (10) is supported on a contact surface of the contact frame (2) diametrically opposite the busbar section (4). Conductor terminal (1) after Claim 9 , characterized in that the contact leg (10) is held in a form-fitting manner on the bearing surface. Conductor connection terminal (1) according to one of the preceding claims, characterized in that a plug contact closure (11) for plug contacting of a plug contact element is arranged on the contact frame (2). Conductor terminal (1) after Claim 11 , characterized in that the plug contact connection (11) is a fork contact formed in one piece with the contact frame (2). Conductor connection terminal (1) according to one of the preceding claims, characterized in that the conductor connection terminal (1) has an insulating material housing (12) with a conductor insertion opening (13) for inserting the electrical conductor, the contact frame (2) and the actuating element (14) in the insulating housing (12) is arranged. Conductor terminal (1) after Claim 13 , characterized in that a plurality of contact frames (2), each with an associated actuating element (14) and clamping spring (3), are accommodated in the insulating material housing (12), a respective conductor insertion opening (13) opening out to a clamping point being in the insulating material housing (12).

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