DE10045764B4 - terminal - Google Patents

Abstract

terminal (2), in particular terminal block, with a terminal housing (4), in which an insulation displacement contact (11) for contacting an electrical Conductor (14) is arranged, and in the exercise of a relative movement between the conductor (14) and the insulation displacement contact (11) a contacting element (8) is provided which over one from the outside into the terminal housing (4) insertable operating tool (18) is movable, which arranged with a in the terminal housing (4) movable separate actuator (20) cooperates, which engages in the Kontaktierungslement (8), characterized in that the actuating element (20) according to Type of pocket formed receiving space (34) for the operating tool (18) with a closed towards the contacting element (8) has bottom boundary, such that the actuating element (20) includes protective sides, which when the operating tool (18) arranged between this and the Kontaktierungslement (8) are, allowing immediate contact between the operating tool (18) and the contacting element (8) is avoided.

Description

The invention relates to a terminal, in particular terminal, according to the preamble of claim 1. Such a terminal is the DE 298 14 208 U1 refer to.

terminals for contacting and connection of electrical conductors are in diverse versions Also known as so-called terminal blocks on top or top hat rails be snapped up. A distinction is made between screw terminals, where the electrical conductors are fixed by means of clamping screws and screwless terminals. The latter are as spring clips or insulation displacement terminals formed. At the spring terminals, the electric Ladder clamped by means of a compression or tension spring. Either with spring clamps and screw terminals it is necessary that the conductor end to be contacted is previously stripped. In contrast, is with the insulation displacement terminals or insulation displacement contacts a stripped clean Conductor contact possible. For stripping-free conductor contacting are usually screwless terminals used.

In the insulation displacement terminals is severed for contacting the conductor whose insulation. In order to apply the force required for this, in general, an insertable from the outside into the housing of the terminal operating tool, such as a screwdriver, provided with the conductor and insulation displacement contact are moved relative to each other. In this case, either the conductor is guided against the insulation displacement contact. Screwless connection terminals with an insulation displacement contact designed according to this principle are, for example, from the documents DE 197 49 622 C1 . DE 44 37 022 C1 . DE 298 14 208 U1 or DE 32 39 708 C2 known. According to these documents, the conductor is moved by means of a guide element with respect to the stationary mounted insulation displacement contact.

At the time of the DE 195 41 137 A1 known terminals, the insulation displacement contact is supported by a curved bracket which is rotatably mounted about a rotation axis in a busbar. For Klemmkontaktierung the operating tool engages directly on the bracket and turns the bracket to the head.

In the from the DE 197 49 622 C1 and from the DE 44 37 022 C1 known terminals, the conductor is inserted into the guide element, which is pushed along a busbar by means of the actuating tool to the insulation displacement contact. According to the DE 197 49 622 C1 the actuating tool is passed through a Betätigunsghilfe and acts directly on the guide element.

The known terminals are for repeated contacting of a Ladder trained. Due to the required forces at the insulation displacement contact, the individual elements are strong loaded. In particular, the movably mounted parts are added the operation with the operating tool and in its insertion in the terminal heavily loaded.

Of the Invention is based on the object, a terminal of the above specify the type mentioned in the most gentle handling possible allows is.

The Task is according to the invention solved by a terminal with the features of claim 1. Thereafter, a contacting element for contacting a conductor from an operating tool actuated, and it is an actuator provided, which with the operating tool cooperates and is designed such that a direct Contact between operating tool and the contacting element is avoided. The actuator has for this purpose a receiving space for the operating tool. The actuator is therefore designed hollow inside and forms a multi-sided guide for the operating tool. As a result, both when contacting and when releasing the contact, ie with different directions of movement of the actuating tool, a direct contact between the actuating tool and contacting element avoided. The actuating element forms So a guide element for the operating tool and guaranteed a particular all-round and secure leadership.

This has the decisive advantage that the contacting element can not be injured, for example as a result of improper insertion of the operating tool. This ensures a gentle operation, so that the functionality of the insulation displacement contact is maintained even with repeated Leitererkontaktierung. For this purpose, the actuating element is preferably arranged between the latter and the contacting element when the actuating tool is inserted. The actuating element thus acts as a protective element against mechanical damage to the insulation displacement contact by the actuating tool. The actuating element preferably engages loosely in the contacting element. By the loose intervention On the one hand, a secure guidance of the actuating tool is made possible, and on the other hand, due to the play, an easy handling is ensured.

Around a loss of the actuator to avoid, this is preferably arranged captive in the terminal housing.

Preferably shows the case a projection as an abutment for the actuator on, and the actuator is snapped into this abutment. This allows a particularly simple Attaching the actuating element in the terminal housing, by the actuating element via a is pressed by the projection specific pressure point in the terminal housing.

In a preferred embodiment determines the projection an axis of rotation for the actuator. As the actuator at the same time the operating tool leads, this is also rotated about this axis of rotation. The as abutment trained projection thus forms a point at which the operating tool supported becomes. The from the operating tool exerted personnel are thereby advantageously absorbed by the terminal housing.

In an expedient embodiment, the actuating element is a pivot lever with a particular wedge-like bulge as an abutment to the abutment educated. The wedge-like bulge is a simple insertion of the actuating element into the terminal housing allows.

Around a simple introduction over the To ensure a lead over is the actuator preferably formed elastically.

Around to obtain a production technology simple design is the actuator preferably integrally.

For a high Ease of use of the terminal has the actuator in an expedient embodiment an ad for the direction of movement in the open position or in the clamping position on. This is from the outside clearly visible in which direction the actuating tool for Klemmkontaktierung or for release of the contact must become.

Also for one high ease of use and to see if the inserted Head contacted, the actuator has in a preferred Design a mark for the position of the contacting element.

For a safe Insulation displacement contact is in a particularly preferred embodiment provided that the contacting element the insulation displacement contact includes for contacting the stationarily held in the terminal housing conductor. The contacting element and the insulation displacement contact form a uniform component. This is preferably on a power rail slidably arranged.

Preferably has the busbar two mutually at an angle Leg on, each connected to an insulation displacement contact is. The terminal thus has a double-sided insulation displacement contact. By arranged at an angle leg is the busbar roughly roof-shaped formed, whereby the width of the terminal as low as possible is held.

According to one preferred embodiment is an electrical with the insulation displacement contact connected plug contact for provided the inclusion of a pin. This will be another connectivity with a contact type different from the insulation displacement contact provided. The plug contact is particularly suitable for contacting a printed circuit board, which has a plug pin for this purpose.

Around to allow a compact terminal, form the plug contact and the insulation displacement contact a unit. Both are preferred formed from a single stamped and bent part.

According to one expedient development of the plug contact is movable mounted contacting element integrally formed. This has the advantage that the plug contact during actuation with the operating tool moved together and, for example, a fixedly arranged plug pin is postponed.

Around to allow a compact design of the terminal and at the same time sufficient space for contacting the Different contacts to provide, are the insulation displacement contact and the plug contact accessible from opposite sides for contacting. This is particularly advantageous for contacting a printed circuit board. The terminal is here attached with its underside on the circuit board and over the cutting contact accessible from above are outgoing or incoming lines with the circuit board contacted.

According to an expedient embodiment of the plug contact is designed as a so-called contact tulip. The plug contact thus has a contact opening, which is bordered in particular on all sides, with lateral contact elements which are in contact Condition on the pin exert a clamping pressure.

alternative this is according to a preferred development of the plug-in contact fork-shaped. This execution allows a sliding of the plug contact on a fixedly mounted Plug pin. The plug contact is preferred in this case formed by moving the contacting element.

Conveniently, is characterized by the movement of the contacting element at the same time Insulation displacement contact and one contact at the plug contact brought about. As a result, a quick and multiple contact is achieved.

Around preferably many connectivity options To get terminal, this is according to an advantageous development designed as a floor terminal with arranged on several levels contacts.

The Design variants with regard to the arrangement of the plug contact as well as its education are also independent of the arrangement and special Training of the actuating element to realize.

embodiments The invention will be explained in more detail below with reference to the drawing. In this demonstrate:

1 a terminal in a side view,

2 an actuating element with a marking for the position of a contacting element, and

3 an actuating element with an indication of the direction of movement of the actuating element in an open position or in a clamping position,

4 a multi-row terminal with insulation displacement contacts and plug contacts in a perspective view,

5 the terminal according to 4 in a side view,

6 a contacting element with an insulation displacement contact and with a fork-shaped plug contact in a perspective view,

7 a partial plan view of the contacting element according to 6 .

8th a fragmentary frontal view of the contacting element according to 6 , and

9 a partial side view of a terminal formed as a terminal clamp.

Equivalent Parts are provided in the figures with the same reference numerals.

According to 1 includes a terminal 2 a terminal housing 4 , An arranged therein and approximately roof-shaped busbar 6 , as well as two contacting elements 8th on the two thighs 10 the busbar 6 are arranged displaceably. The contacting element 8th is electrically conductive, comprises an insulation displacement contact 11 and forms with this an assembly. The terminal 2 is therefore with a double-sided insulation displacement contact 11 Mistake. The leg arranged at an angle to each other 10 allow the smallest possible design of the terminal 2 , In addition, the accessibility is improved from the outside. The terminal housing 4 has a conductor channel on both sides 12 for an electrical conductor 14 and one opening each 16 for the engagement of an actuating tool 18 on. The conductor channel 12 as well as the opening 16 are shown in dashed lines. The operating tool 18 is preferably a conventional screwdriver. In the opening 16 is each an actuator 20 inserted, which is the operating tool 18 receives. Laterally at the opening 16 indicates the terminal housing 4 one projection each 17 on. The actuator 20 gets over one by the lead 17 defined pressure point in the terminal housing 4 pressed in and held there captive. It is externally accessible when mounted and an integral part of the terminal 2 In addition to the two insulation displacement contacts 11 indicates the connection terminal 2 additionally two sockets 22 for plug contacting. They are designed, for example, for receiving contact plugs. The terminal 2 So offers a total of four connections. It is designed in particular as a terminal block for arrangement on a support rail or top hat rail. For this purpose, it has on its underside a guide recess 24 , In the embodiment, the contacting element shown on the left half is located 8th in the open position and the contacting element shown on the right half of the picture 8th after contacting the conductor 14 in the clamping position. The clamping position is therefore the outer end position of the contacting element 8th on the thigh 10 ,

The contacting element 8th is preferably U-shaped and has at its upper end to form the insulation displacement contact 11 two mutually bent insulation displacement limbs, by means of which the conductor insulation cut and between which the conductor 14 is clamped. For contacting the conductor 14 this is through the conductor channel 12 in a recess 26 the busbar 6 introduced.

After inserting the conductor 14 into the recess 26 becomes the contacting element 8th towards the ladder 14 moved, so from the middle of the terminal 2 outward. The insulation displacement contact cuts 11 the conductor insulation and contacts the conductor 14 , The contacting element 8th is with the busbar 6 electrically connected. For this purpose, the contacting element 8th a contact lug 28 on that with spring force against the power rail 6 is pressed.

For displacement of the contacting element 8th along the busbar 6 becomes the operating tool 18 in the actuator 20 introduced. The latter engages loosely in a recess 30 of the contacting element 8th one. The actuator 20 is with the operating tool 18 around an imaginary axis of rotation 32 rotated, and the contacting element 8th is moved, for example, in the clamping position. The effect of the terminal housing 4 educated edge 17 as an abutment. The actuator 20 is so as a to the axis of rotation 32 pivotable pivot lever designed. It has in its lower part an outside wedge-shaped bulge 36 on. This acts as an abutment to that of the projection 17 formed abutment.

The actuator 20 takes the operating tool 18 and leads this in the terminal housing 4 , For this it has a recording room 34 which is designed in the manner of a bag. The operating tool 18 therefore can not with the actuator 8th get in direct contact. This is the contacting element 8th protected against damage.

According to 2 is the actuator 20 designed as a wedge-shaped pivot lever whose receiving space 34 through a likewise wedge-shaped slot 38 is formed. The actuator 20 Thus, essentially comprises two protective sides, which during the displacement of the contacting element 8th by means of the operating tool 18 between this and the contacting element 8th are arranged, and those of the operating tool 18 applied force on the contacting element 8th transfer.

The slotted embodiment allows a very easy insertion of the actuating element 20 in the opening 16 of the terminal housing 4 because the two side walls of the actuator 20 while being bent towards each other. Once the actuator with its bulge 36 about the head start 17 formed pressure point, snaps the bulge 36 behind the projection 17 one. The actuator 20 For this purpose, it is particularly elastic. The material used is preferably plastic, which is particularly advantageous with regard to the desired protective function.

The actuator 20 has a head at the end 40 , which has an insertion opening 42 for the operating tool 18 Are defined. The insertion opening 42 is from side bars 44 of the head 40 completely outlined.

The head 40 carries on two of his side bars 44 a mark 46 , in the embodiment a "0" and a "1". This mark 46 indicates whether the contacting element 8th is in the clamping position "1" or in the open position "0". Because the head 40 of the actuating element 20 from the terminal 2 protrudes, is the position of the contacting element 8th easily recognizable from the outside.

In an alternative embodiment, the actuating element 20 according to 3 an ad 48 for the direction of movement of the actuating element 20 for example, in the clamping position. The ad 48 is according to 3 through a tactile survey 50 Of the head 40 educated. Additionally is on this survey 50 an arrow 52 intended. The ad 48 and the mark 46 can be combined with each other.

The main advantage of the terminal 2 with the actuating element 20 can be seen in the fact that the latter damage the contacting element 8th through the operating tool 18 is excluded. The functionality of the terminal 2 remains even after repeated contact and release of the contact. The actuator 20 So it has a protective function. In addition, it provides a guide for the operating tool 18 so that this can be easily and safely introduced. In particular, this is a violation of the inside of the terminal 2 provided elements due to the insertion of the operating tool 18 avoided. As a third function, the actuator acts 20 also as a lever for the operating tool 18 , This is achieved by the shape of the terminal housing 4 with the lead 17 and the bulge 36 on the actuator 20 , This embodiment also prevents the actuating element 20 from the terminal 2 can fall out. A fourth function of the actuator 20 is in the display for the position of the contacting element 8th or in the display for the direction of movement in the open position or Klemmpositi to see.

The terminal 2 according to the 4 and 5 is constructed multi-row, thus has a plurality of juxtaposed contacting elements 8th on, each electrically separated from each other in individual chambers 54 of the terminal housing 4 are arranged. The essential difference to the terminal 2 according to 1 can be seen in that in addition to the insulation displacement contact 11 at the contacting element 8th a plug contact 58 is formed. The contacting element 8th with the insulation displacement contact 11 So it makes contact with the plug 58 a structural unit 60 , This is in the chamber 54 slidably mounted. In contrast to the embodiment according to 1 is the contacting element 8th not on a power rail 6 but directly in the chamber 54 stored. The displacement of the respective structural unit 60 is here by the operating tool 18 executed, which is the contacting element 8th against the respective stationary ladder 14 shifts. The ladder 14 have one of an insulation 55 surrounded conductor soul 56 on. They are over the respective conductor channel 12 into the terminal housing 4 on a housing top 62 introduced. The ladder introduced from above 14 be using the insulation displacement contacts 11 insulation displacement contacts.

The plug contacts 58 are in contrast to contact pins 66 at the bottom of the housing 64 intended. For this purpose, the respective plug pin 66 through a passage opening 67 ( 5 ) and into the plug contact 58 plugged in. This is in the manner of a contact tulip 68 with two half-shell-like jaws 69 formed, between which the plug pin 66 is clamped. The two jaws 69 are doing on a longitudinally slotted web 70 arranged, which on the front side of the contacting element 8th is integrally formed on the underside. Through the longitudinal slit of the web 70 is the clamping force on the pins 66 generated. Due to the passage opening 67 is a contact via the plug contact 58 only possible if the contacting element 8th in his contact position, so if in particular a leader 14 is contacted. Because only in this case, the implementation opening is aligned 72 with the opening of the plug contact 58 , In an alternative embodiment, the lead-through opening 72 as a slot with an extension direction in the direction of the contacting element 8th designed so that the plug pin 66 already introduced before the leader 14 will be contacted.

The plug contact 58 is preferably used for contacting a printed circuit board, not shown, on the plurality of plug pins 66 are arranged. The terminal according to the 4 and 5 Therefore, it is preferably suitable for connecting the conductors 14 to a circuit board. For this purpose, the terminal 2 attached to the circuit board and with this over the plug contacts 58 contacted. The connection of the conductors 14 to the circuit board can now be done easily and quickly by a simple insulation displacement contact.

Every chamber 54 of the terminal housing 4 is an actuator 20 assigned, which at the same time as a guide element and as a protective element for the operating tool 18 serves. When assembling the terminal 2 becomes the respective actuator 20 from the top of the housing 62 through the corresponding opening 16 inserted and then in the terminal housing 4 captively locked. For this purpose, the bulge engages behind 36 on the actuator the projection 17 ( 5 ).

According to 4 are in the terminal 2 two conductors 14 - Of a total of five options for a conductor connection - contacted. The contacted ladders 14 associated actuating elements 20 are in a contact position while the other actuators 20 are in an exemption. The exemption indicates that no leader 14 is contacted. The contact position and the release as an indication of a conductor contact are optically easy to distinguish from each other. In 5 is the exemption of the actuator 20 with the assigned position of the contacting element 8th shown in dashed lines.

According to the 6 to 8th has the plug contact 58 a contact fork 74 with a fork opening 76 on. This makes it possible, with a displacement of the contacting element 8th at the same time the leader 14 with the insulation displacement contact 11 and the pin 66 with the plug contact 58 to contact. Depending on the configuration, it is also possible to proceed in such a way that the contact fork 74 is dimensioned such that, regardless of the position of the contacting element 8th always a plug-in contact with the pin 66 is possible.

According to the perspective view of the contacting element 8th to 6 has the insulation displacement contact 11 an insulation displacement slot 78 between two insulation displacement legs 80 on. At each of these closes the recess 30 in the form of a concavity for the engagement of the actuating element 20 at. In the 6 shown assembly 60 comprising the contacting element 8th , the insulation displacement contact 11 and the plug contact 58 is preferably made from a piece of sheet metal by a punching and bending process.

How the particular 7 it can be seen, is the contact fork 74 similar to the contact tulip 68 according to 4 on a longitudinally slotted web 70 arranged, which at the contacting element 8th is formed. To 8th has the contact fork 74 as well as the contact tulip 68 jaws 69 on, which are slightly bent upwards and thus a guide for the pin 66 form.

According to a third variant of the terminal 2 to 9 this is as a floor clamp 82 formed with two contact planes I, II. Each of the contact planes I, II defines a floor, on each of which two opposing contacting elements 8th are arranged. The individual contact planes I, II are designed step-like to each other. In the middle of the floor clamp 82 , in the upper contact level II, are a number of Steckklemmkontakten 84 provided for example in the form of sockets. These are particularly suitable for placing an electrical component 86 such as a relay or other component having a number of integrated electrical functions. The individual Steckklemmkontakte 84 are here via busbars 6 each with one of the insulation displacement contacts 11 electrically connected, so that the insulation displacement contacts 11 the electrical component 86 is connectable.

2

terminal

4

terminal housing

6

conductor rail

8th

contacting

10

leg

11

IDC

12

conductor channel

14

ladder

16

opening

17

head Start

18

operating tool

20

actuator

22

sockets

24

Guide recess

26

recess

28

Contact tab

30

recess

32

axis of rotation

34

accommodation space

36

bulge

38

slot

40

head

42

insertion

44

sidebars

46

mark

48

display

50

survey

52

arrow

54

chamber

55

conductor insulation

56

conductor core

58

plug contact

60

unit

62

Housing top

64

Housing bottom

66

male Pins

67

Through opening

68

Contact tulip

69

jaws

70

web

72

Through opening

74

Contact fork

76

fork opening

78

IDC slot

80

IDC leg

82

tier terminal

84

Plug clip contact

86

component

I, II

contact planes

Claims (20)

Terminal ( 2 ), in particular terminal block, with a terminal housing ( 4 ), in which an insulation displacement contact ( 11 ) for contacting an electrical conductor ( 14 ) is arranged, and in which for exerting a relative movement between the conductor ( 14 ) and the insulation displacement contact ( 11 ) a contacting element ( 8th ) is provided, which via a from outside into the terminal housing ( 4 ) insertable operating tool ( 18 ) which is movable with a in the terminal housing ( 4 ) movably arranged separate actuator ( 20 ) interacting with the contacting element ( 8th ) engages, characterized in that the actuating element ( 20 ) a trained in the manner of a pocket receiving space ( 34 ) for the operating tool ( 18 ) with a direction towards the contacting element ( 8th ) has closed bottom side boundary, such that the actuating element ( 20 ) Covers protective sides which, when the actuating tool is inserted ( 18 ) between this and the contacting element ( 8th ) are arranged so that a direct contact between the actuating tool ( 18 ) and the contacting element ( 8th ) is avoided. Terminal ( 2 ) according to claim 1, characterized in that the actuating element ( 20 ) in the contacting element ( 8th ) engages loosely. Terminal ( 2 ) according to one of the preceding claims, characterized in that the actuating element ( 20 ) captive in the terminal housing ( 4 ) is arranged. Terminal ( 2 ) according to claim 3, characterized in that the terminal housing ( 4 ) a lead ( 17 ) as an abutment for the actuating element ( 20 ), and that the actuating element is snapped into this abutment. Terminal ( 2 ) according to claim 4, characterized in that the projection ( 17 ) a rotation axis ( 32 ) for the actuator ( 20 ) certainly. Terminal ( 2 ) according to claim 4 or 5, characterized in that the actuating element ( 20 ) as a pivot lever with a wedge-like protrusion ( 36 ) is designed as an abutment to the abutment. Terminal ( 2 ) according to one of the preceding claims, characterized in that the actuating element ( 20 ) is elastic. Terminal ( 2 ) according to one of the preceding claims, characterized in that the actuating element ( 20 ) is integrally formed. Terminal ( 2 ) according to one of the preceding claims, characterized in that the actuating element ( 20 ) an ad ( 48 ) for the direction of movement in the open position or in the clamping position. Terminal ( 2 ) according to one of the preceding claims, characterized in that the actuating element ( 20 ) a mark ( 46 ) for the position of the contacting element ( 8th ) having. Terminal ( 2 ) according to one of the preceding claims, characterized in that the contacting element ( 8th ) the insulation displacement contact ( 11 ). Terminal ( 2 ) according to one of the preceding claims, characterized in that the insulation displacement contact ( 11 ) with a busbar ( 16 ) is electrically conductively connected and that the busbar ( 6 ) two legs arranged at an angle to one another ( 10 ), with each of which an insulation displacement contact ( 11 ) connected is. Terminal ( 2 ) according to one of the preceding claims, characterized in that a with the insulation displacement contact ( 11 ) electrically connected plug contact ( 58 ) for receiving a plug pin ( 66 ) is provided. Terminal ( 2 ) according to claim 13, characterized in that the plug contact ( 58 ) and the insulation displacement contact ( 11 ) an assembly ( 60 ) form. Terminal ( 2 ) according to claim 13 or 14, characterized in that the plug contact ( 58 ) on the movably mounted contacting element ( 8th ) is formed. Terminal ( 2 ) according to one of claims 13 to 15, characterized in that the insulation displacement contact ( 11 ) and the plug contact ( 58 ) from opposite sides ( 62 . 64 ) are accessible for contacting. Terminal ( 2 ) according to one of claims 13 to 16, characterized in that the plug contact ( 58 ) is designed as a contact tulip. Terminal ( 2 ) according to one of claims 13 to 16, characterized in that the plug contact ( 58 ) is designed fork-shaped. Terminal ( 2 ) according to claim 18, characterized in that by moving the contacting element ( 8th ) at the insulation displacement contact ( 11 ) and at the plug contact ( 58 ) in each case a contact can be brought about. Terminal ( 2 ) according to one of the preceding claims, characterized in that it can be used as a floor clamp ( 82 ) with contacts arranged on several contact levels (I, II) ( 11 . 84 ) is trained.