DE202004014616U1 - Electrical connection part with pull cage - Google Patents

Abstract

Electrical connection part, comprising
- A receiving space (2) having a receiving opening (3) for at least one electrical conductor (4), wherein the receiving space (2) has at least two walls (5, 6), and
A rotatably arranged clamping screw (9), by the actuation of which a relative movement of the two walls (5, 6) can be achieved,
characterized,
in that the two walls (5, 6) are formed in the ready-to-mount state of the connection part (1) by a bent one-piece stamped part (10).

Description

The The present invention relates to an electrical connection part with a receiving space into which a conductor is inserted through a receiving opening can. The receiving space has two substantially opposite Walls, which can be moved relative to each other with a clamping screw. at In particular, the leader may be one, for example stiff wire or flexible strands act.

On Such electrical connection part is used to produce a electrical contact between an electrical conductor and a another electrical device, for example in the form of a device terminal in a tin. By way of example only, such conductor terminals can be used in cooker tins be used.

A known embodiment of an electrical connection part is in 13a shown. In this connection part is provided that the conductor 130 between the head of a clamping screw 131 and a ribbed conductor support surface 132 , in which the clamping screw can be screwed, is clamped. To prevent the ladder from slipping sideways - in 13a so obliquely behind - is a lateral boundary wall 133 intended. 13b shows this connection part without the clamping screw, 13c a variant.

On Disadvantage of this known type of connection part is characterized given that the screw heads due to their manufacturing process in their dimensions in general Are subject to fluctuations, so that - especially at especially thin wires and small failing screw heads - can not be excluded that the conductor slips out between the screw head and the side wall. The orientation of the thread is subject to fluctuations, so that It can happen that the neck of the clamping screw is not exact perpendicular to the conductor support surface is aligned. This can also lead to a poor clamping to lead. In the end For this type of connector when inserting the conductor, the direction of rotation must be the screw are taken into account.

In 14 a further electrical connection part is shown, as it is known from the prior art. In this connection part, a "pull cage" is provided for receiving the conductor, which - with respect to 14 - down from a mother 140 the clamping screw 141 and is bounded laterally and rearwardly by a bent stamped part. The clamping screw is passed through the upper wall of the Zugkäfigs and through the mother, so that an inserted conductor can be clamped by tightening the clamping screw in the Zugkäfig. In this connection part is reduced by the formation of the Zugkäfigs the risk of lateral slipping out of the clamped conductor. However, this connector is more expensive to manufacture and to handle than the one in FIG 13a shown, because this connection part has an additional component in the form of the nut.

Of the Invention is based on the object, starting from the illustrated Prior art to improve an electrical connection part. In particular, the connection part in the production of simple and be easy to use in handling.

This The object is achieved by the Characteristics of the independent Claim solved. The dependent claims form the central idea of the invention in a particularly advantageous Continue.

According to the invention an electrical connection part is provided which has a receiving space, for example a "cage-like" recording room, for at least has a conductor. In particular, the leader may be on the one hand act, for example, a stiff wire, on the other hand to multi-wire or multi-core flexible strands. The recording room points while a receiving opening, through which the ladder can be inserted into the receiving space. Farther the receiving space has at least two, preferably substantially opposing Walls up ,

Farther the connection part has a clamping screw, by the actuation of which both walls can be moved relative to each other, leaving the conductor between the two walls, so can be clamped in the receiving space. By turning the clamping screw so the receiving space "open" and "closed", with at open Reception room of the ladder introduced can be and the introduced Conductor is clamped in a closed receiving space. insofar So it is a connection part on "Zugkäfig principle".

Farther is inventively provided that the two walls, at least during the production, as will be explained in more detail below, by a curved one-piece Stamped part are formed.

The connecting part according to the invention can thus be made in particular of only two parts, namely the stamped part and the clamping screw. This is advantageous for the production. In particular, therefore, no additional nut or the like necessary.

Im "assembly-ready State of the connection part are the two walls so far apart that the ladder can be inserted. The "cage" or recording room So it is open according to the inclusion of the conductor. The clamping screw is already partially screwed in, to the extent that she already grasps.

In the assembly-ready state, the two walls by a curved one-piece stamped part educated. Therefore, in this assembly-ready state there is a mechanical fixation of the two walls to each other. This has the Advantage that in this state, the risk of independent release of the Clamping screw is virtually excluded from the stamped part. Also an independent opening or Conclude the recording room is thus practically impossible. This is special when exposed to mechanical forces of importance, as for example in the form of shaking or Bump or the like, for example, during transport of the connection part to an end user, in general.

In particular is the danger of being self-employed solving the clamping screw practically excluded when the two walls in the assembly-prepare Condition of the connection part relative to the clamping screw accordingly are strongly biased. This can be done, for example be that one of the two walls in this state directly or indirectly, for example, approximately in the direction the longitudinal axis of the neck of the clamping screw presses against the head of the clamping screw. The neck the clamping screw can, for example, in a thread in be held on the other wall. The pressure can continue, for example, by the residual stress be caused when bending the stamped part in the assembly-ready state occurs. It is also possible, however provide separate spring or clamping element for this purpose, for example in the form of a spring or a rubber or the like arranged so is that in the assembly-ready state of the connection part against press the head of the clamping screw. In this sense, it is also possible to speak of a "loss-lock for the clamping screw". This is also advantageous with regard to the delivery of the connection part in assembly ready condition to an end user.

By the bias is still achieved that a noise, For example, a rattling or the like, caused by a prevents mutual movement of clamping screw and receiving space is. A corresponding noise could give the impression to an end user, loose parts and thus possibly to get a defective product. Avoiding this noise thus contributes helping to give the end user a good and secure feeling of the product.

In comparison, in the case of the connection part shown above, there is a tensile cage principle according to the prior art 14 When the cage is open, there is the risk of an independent release of the clamping screw and also of an independent opening or closing of the "cage", if corresponding mechanical forces act because the clamping screw is connected to two loose parts It is therefore necessary for the end user to first loosen the clamping screw in a preparatory operation and to open the pull cage by screwing it on so far that the conductor is inserted into the cage With the connection part according to the invention, therefore, this preparatory operation is no longer necessary since the delivery, as mentioned above, can already take place in the assembly-ready state ,

Advantageous the punched part has a recess and a tab, wherein the Lug bent into the recess and hung in this can. It is thereby achieved that the opened receiving space is formed in this way that can be introduced Ladder seen in all its lateral directions on all sides is completely enclosed by the receiving space. In particular thereby a lateral slipping out of the clamped conductor at the by the hinged Tab formed joint reliably prevented in this way. For example, the recess may be provided in a side wall of the receiving space, and the tab may be formed as an approach of one of the two walls.

Advantageous are the two walls essentially in the assembly-ready condition of the connection part plan and arranged parallel to each other. This is easy to do Realize that the two walls on each other by turning the clamping screw move to or away from each other. A secure clamping and electrical contact is thereby supported.

Advantageously, in this case, the recess on an elongated portion which extends substantially perpendicularly between the two walls. The flap, which is preferably ankerfömig designed and hinged in the elongated section can then in the elongated portion in one direction be moved perpendicular to the two walls. When tightening the clamping screw, so when closing the receiving space, thus, on the one hand, the tab securely in the recess and on the other hand, the two walls can be moved to the clamping of the conductor to each other. The recess with the hinged flap thus also represents a guide for the intended relative movement of the two walls.

Advantageous has one of the two walls a threaded hole for the clamping screw on. This will provide a guide for the movement of this wall achieved. In particular, a lateral tilting or the like is excluded in this way. The wall is provided at their Movement when actuated the clamping screw perpendicular to the longitudinal axis of the neck of the clamping screw guided.

Farther Advantageously, the other wall has a through hole (without thread) for the Neck of the clamping screw on. Thus, the clamping screw for the production of the assembly-ready state with its neck first through the through hole plugged in and then screwed into the threaded hole. The through hole is slightly larger than in this case the screw neck but smaller than the screw head. When tightening the screw, so when closing of the recording room will then be the wall with the threaded hole in the direction drawn to the other wall. Due to the mechanical forces between the clamping screw and the two walls will be a guide of Relative movement of the two walls achieved.

Farther can be provided that in the assembly-ready state of the connection part the wall with the through hole - due to the bend of the stamped part caused residual stress of the stamped part - against press the head of the clamping screw and the neck of the screw in the thread summarizes and thus held there is. In this way, the bias already shown above the walls across from the clamping screw with the associated advantages to simple Achieved way.

Advantageous In this case, the punched part continues to be in an area between the two holes, so between the threaded hole and the through hole, a section reduced material width for the intended bend of the Stamped part on. It is "diminished material width "so understand that the stamped part is longitudinal a straight line perpendicular to the connecting line of the Midpoints of the two holes stands, has less material than along a straight to this Line parallel offset line between the two holes. Of the Section of reduced material width, for example, so by a "web" or "connecting web" or by at least be formed two such webs. Such a bridge connects so a portion of the wall having the through hole with an area the wall with the threaded hole.

This facilitates the bending of the stamped part. The section reduced Material width acts in this case, as a kind of "hinge" or bending point Effect is both advantageous with regard to the "initial bending" of the stamped part, So from the plan state in the state of the stamped part in the assembly-ready Condition of the connection part, as well as in terms of "further Bending "of the stamped part, So the bend that when tightening, so when closing the Recording room takes place. This is true at least for the first phase of closing, like closer below explained becomes.

Of the Section of reduced material width can be replaced by a free cut formed in the stamped part between the threaded hole and the through hole be, so that are formed by the free cut two webs. Preferably In this case, the free cut has a width which is larger as the diameter of the through hole. This way is through the two webs formed a kind of hinge, so to speak, at the bend, especially during the "initial bending" of the stamped part a motion control the two walls supported.

Farther Advantageously, the two webs with respect to a guide of Relative movement of the two walls at the beginning of the operation the clamping screw, starting from the assembly-ready state. A relative lateral evasive movement of the walls is due to the fixation effect the two bridges practically excluded.

above connecting features set forth can therefore be provided, for example be that the receiving space between the two plane-parallel walls up one side has a side wall in which the recess with the hinged Lug is provided and opposite to this side wall Side preferably two webs are provided. The clamping screw penetrates in this case the recording room.

Advantageously, the web or at least one of the webs has at least one notch. The notch can be dimensioned so that at this point a predetermined breaking point is formed. It can therefore be provided that when the clamping screw is rotated at the location of the notch or, in the case of several notches, at the locations of the notches, the stamped part breaks. As a result, in particular with comparatively thin wires after breakage of the webs, a quasi-plane-parallel approach of the two walls and thus a good and secure electrical contacting of the conductor are achieved tert.

The Conclude of the recording room can therefore be divided into two phases in this case The first phase begins, starting from the assembly-ready State of the connection part with actuation of the clamping screw and ends with the breakage of the bridges. The second phase begins with the Breakage of the webs and ends with firmly clamped conductor, so tightened Clamping screw. In the first phase, the webs still support the relative movement the two walls, by acting against a lateral twisting and keep the walls plane-parallel. With increasing approach however, the walls are pressing the webs, caused by the residual stress of the stamped part in this area, increasingly against the walls and act on the side of the Webs almost as a spacer. This is another plan-parallel approach the walls increasingly opposite. This spacer effect is due to breakage of the webs and therefore stands for the following final approach Walls in no longer opposed to the second phase.

Advantageous In this case it is provided that the leader in that part of the recording room which is located between the neck of the clamping screw and the side wall with the hinged Flap extends. This part is in a plane perpendicular to the inserted conductor continuously closed, so that lateral slipping out of the conductor excluded can be. This is particularly important, if provided is that the webs when closing of the recording room break. On the side of the webs is the recording room in this case with tightened clamping screw so not continuous closed. A lateral slipping out of the ladder in the direction the webs is but also after breaking the webs by the between the head and the webs located neck of the clamping screw prevented.

Advantageous the connection part furthermore has at least one contact extension, preferably in the form of a flat tongue. This is easier Connection with continuing electrical conductors. The contact extension is advantageous as an approach a wall portion of the receiving space formed.

Advantageous the reception room has a back wall on, the receiving opening opposite. Such a back wall can serve as a conductor stop, so the mechanical limit during insertion or inserting the conductor into the receiving space represents.

Advantageous can the back wall through a bent extension from one of the two walls be formed.

According to one Another aspect of the invention is an electrical connection part provided, which has a receiving space with a receiving opening for at least has a conductor. In this case, the receiving space has at least two Walls up. Furthermore, the connection part has a rotatably arranged clamping screw for one Relative movement of the two walls on. According to the invention are the two walls in the assembly-ready state of the connection part against the Clamping screw preloaded.

By the bias becomes an independent relative movement between Clamping screw and walls, even with the action of forces in the form of shaking or the like prevented.

The Bias opposite The clamping screw can be advantageous through the walls themselves or caused by a separate tension or spring element his. For example, it may be provided that a spring or rubber element from one side or also axially against the head of the clamping screw suppressed.

According to one Still another aspect of the invention is an electrical connector provided, which has a receiving space with a receiving opening for at least has a conductor. In this case, the receiving space has at least two Walls up. Furthermore, the connection part has a rotatably arranged clamping screw for one Relative movement of the two walls on. According to the invention is furthermore, in the ready-to-mount state of the connection part, the inserted conductor in all lateral directions, so in all to the longitudinal axis of the conductor perpendicular directions, along a closed line, formed by the reception room or by the Reception room and from the clamping screw, enclosed. In particular So this line has no gap or any other interruption on, by a lateral slipping out of the conductor would be possible.

Further Features, benefits and properties are now based on a detailed description of embodiments and with reference on the figures of the attached Drawings explained. Show it:

1 an electrical conductor connector according to the invention from the front top right in a perspective view,

2 a view like in 1 , but without inserted conductor and without clamping screw,

3 a schematic representation of a Section of the unbent punched part,

4 a perspective view from the back left top,

5 a view like in 4 , but without ladder and clamping screw,

6 a view from the right,

7 a view from the left,

8th a view from the front,

9 a view like in 8th , but without ladder and clamping screw,

10 a view from above, without ladder and clamping screw,

11 a perspective view according to a second embodiment,

12a a schematic representation of a built-in electrical junction box according to the invention in the "ready to install" state

12b a representation like in 12a , but in the state with clamped conductor,

13a . b . c , Conductor connections according to the prior art, and

14 another connection part according to the prior art, based on Zugkäfig principle.

1 shows a first embodiment of an electrical connection part according to the invention 1 for connecting a conductor 4 , where the leader 4 the conducting wire of an electric cable 30 represents. The leader 4 may be given in particular in the form of a stiff wire or a stranded flexible flexible strand.

The connection part 1 has a cage-like receiving space 2 on the front, on the side from which the leader 4 is introduced, a receiving opening 3 having.

For easier description are in 1 with thick arrows, the direction designations used in the following indicated above, below, right, left, back and front.

Like from the 1 and 2 can be seen, points to the recording room 3 an upper wall 5 and a bottom wall 6 on. The upper wall 5 has a through hole 7 for a clamping screw 9 on; the bottom wall 6 has a threaded hole 8th with a thread 13 for the clamping screw 9 on.

It is intended the conductor 4 to introduce into the space area, which is left of the neck of the clamping screw 9 between the walls 5 . 6 extends.

When turning the clamping screw 9 becomes the bottom wall 6 opposite the upper wall 5 moved and in this way can the previously introduced conductor 4 finally in the recording room 2 be clamped, with a secure electrical contact through the forming surface joints between the conductor 4 and the upper and lower wall 5 . 6 given is. Through the threaded hole 8th and the through hole 7 will be a reliable guide of the two walls 5 . 6 through the clamping screw 9 guaranteed. In particular, a lateral tilting or the like of the lower wall 6 upon actuation of the clamping screw 9 locked out.

The two walls 5 . 6 are in the in 1 illustrated state of the connection part 1 by a bent one-piece stamped part 10 formed, whose section is schematically in 3 is shown.

The in the 1 . 2 . 4 and 5 illustrated state of the connection part 1 is referred to here as the "ready to mount" state, that is, the state in which the two walls 5 . 6 of the recording room 2 so far apart are that the leader 4 can be inserted or inserted and the clamping screw 9 already in the threaded hole 8th summarizes. The clamping screw 9 is still screwed in so far that they - caused by the internal stress of the bent stamped part - a slight pressure on the top wall 5 exerts while the neck of the clamping screw 9 from the thread 8th is held. In this way, therefore, a voltage or bias is caused by the upper wall 5 from below against the head of the clamping screw 9 is pressed. This tension is so great that an independent release of the clamping screw 9 is reliably prevented, especially under the action of forces in the form of shaking or the like.

In assembly-ready condition of the connection part 1 are thus the two walls 5 . 6 opposite the clamping screw 9 biased. By this bias of the two walls 5 . 6 opposite the clamping screw 9 is achieved in particular that the clamping screw 9 - Especially when exposed to forces in the form of shaking or the like, as they occur during transport in general - is secured against self-loosening. Therefore, the connection part 1 be delivered in an assembly-ready state, for example, to an end user without the risk of independently loosening the clamping screw 9 and an associated independent opening or closing of the receiving space 2 consists. In this sense, we can speak of a "securing against losing the clamping screw".

Because continue to be due to the bias in the ready to install state of the conductor connection 1 the clamping screw 9 and the stamped part 10 can not move relative to each other, is also a corresponding noise in the form of rattling or the like, excluded. Again, this is advantageous because such noise can cause a consumer to feel a potentially defective product in their hands.

The two walls mentioned 5 . 6 are in the assembly-ready condition of the connection part 1 aligned substantially plane-parallel.

The stamped part 10 has a recess 11 and a tab 12 on. The tab 12 is according to the embodiment shown here anchor-shaped and can by bending the stamped part 10 into the recess 11 be hung. The 4 and 5 show the thus bent punched part 10 with hinged flap 12 ,

How to continue 3 can be seen, in this embodiment, the recess 11 of the stamped part 10 on the through hole 7 opposite side a widened section 31 on, which is sized so that the anchor-shaped tab 12 can be inserted through, without causing the anchor neck 32 must be twisted. Except for the widened section 31 is the recess 11 slit-shaped, so oblong, with this elongated section in the bent state, ie in the ready-assembly state between the two walls 5 . 6 runs and is aligned perpendicular to these. For better fixation and at the same time to save space is the hinged flap 12 bent upwards, as in the 4 and 5 shown.

The anchor neck 32 is slightly narrower than the slot 11 so that the hinged tab 12 along the slot, ie along the recess 11 , can be moved. This movement of the tab 12 in the auction 11 takes place, starting from the ready-to-mount state, when the clamping screw is screwed in 9 , instead of. Through the tab 12 and the recess 11 is thus also a guide to the relative movement of the two walls 5 . 6 given to each other.

A left side slipping out of the head 4 is through a left wall 33 of the recording room 2 reliably prevented.

Such as from the 2 and 3 can be seen, the punched part 10 in the area between the through hole 7 and the threaded hole 8th two bars on, a front jetty 14 and a rear jetty 15 , These bridges 14 . 15 are through a free cut 34 in the stamped part 10 educated. The two bridges 14 . 15 act when bending the stamped part 10 from the originally planned state in the ready-to-assembly state as hinges and thus facilitate the production of the plane-parallel alignment of the two walls 5 . 6 , The two bridges 14 . 15 In this embodiment, therefore, they represent an area of "reduced material width" in the sense of the above statements.

How to continue 3 can be seen, is the free punch 34 shaped so that it is in the bottom wall 6 an approach 35 persist. Through this approach 35 is at a total of material-saving and small design of the stamped part 10 the necessary stability in the area of the threaded hole 8th or the thread 13 guaranteed.

Such as in the 4 and 5 to recognize, has the connection part 1 furthermore three contact extensions in the form of flat tongues 17 . 18 . 19 on. These serve for contacting with further electrical conductors, for example within an electrical junction box.

Also in the 4 and 5 it can be seen that the recording room 2 backward through a back wall 20 is limited. This back wall 20 serves as a conductor stop for the conductor to be introduced or inserted 4 , According to this embodiment, the rear wall is 20 by a double curved extension of the upper wall 5 educated. (Alternatively, of course, an otherwise formed rear wall may be provided, for example in the form of an integrally formed on a junction box plastic part or the like.)

In the 6 to 10 For further clarification, further views of the first embodiment are shown. It shows 6 a view from the right (without clamping screw 9 ) 7 a view from the left, 8th a view from the front, 9 also a view from the front, but without a ladder 4 and clamping screw 9 and 10 a view from above.

Especially in the 5 and 7 are two recesses 36 on the left side wall 33 recognizable, the positioning of the connection part 1 in an electrical junction box, such as a stove junction box serve. In the corresponding box corresponding locking lugs can be provided for this purpose.

An advantage of the invention circuit member 1 is given by the fact that it can be delivered ready for assembly. This is possible because of the webs 14 . 15 a mutual fixation of the upper and lower wall 5 . 6 is given and therefore the bias of the two walls already shown above 5 . 6 opposite the clamping screw 9 can be achieved. As shown, therefore, a loosening of the clamping screw 9 in shaking, hitting or other similar effects, as they occur during transport in general, practically impossible. When transporting the connection part according to the invention 1 Thus, there is virtually no risk of autonomous opening or closing of the receiving space 2 , For the end user, it is therefore not necessary in particular to first open the receiving space or "cage" in a preparatory operation.

To support the described transport lock can be provided that the clamping screw 9 in ready for assembly state of the connection part in the thread 13 sits comparatively firmly, so that a particularly secure grip is ensured for transport. Will in this case by the end user to close the recording room 2 the clamping screw 9 turned off, when starting a certain increased initial resistance to overcome before the screw turns slightly easier in the following.

In 11 a second embodiment is shown, in which the two webs 14 . 15 one notch each 16 respectively. It is in 11 only the notch of the front bar 14 to recognize, since the appropriate notch 16 the rear bridge 15 through the upper wall 5 is covered.

These notches 16 represent predetermined breaking points. When tightening the clamping screw 9 (in the 11 is shown only schematically without thread) is thus provided that the two webs 14 . 15 during the closing of the recording room 2 at the notches 16 break. In this way, a plan-parallel approach of the two walls 5 and 6 in the second phase of closing the recording room 2 better possible, as with the breakage of the bridges 14 . 15 the mutual mechanical fixation of the two walls 5 . 6 falls away and then on this side the walls are no longer kept at a distance. A guide of the relative movement of the two walls to each other in the second phase of closing, so after breaking the predetermined breaking points, but still continue by the movement of the tab 12 in the oblong region of the recess 11 guaranteed.

Furthermore, in contrast to the first embodiment, a rear wall 20 ' of the recording room 2 according to the second embodiment by an extension of the lower wall 6 educated.

In the 12a and 12b is an inventive connector in an electrical box 37 , For example, a stove junction box, shown installed. It is in 12a the assembly-ready state shown, so the state with open, for receiving the conductor 4 prepare reception room 2 , In 12b is shown the state in which the conductor 4 between the upper wall 5 and the bottom wall 6 is clamped.

As material for the stamped part 10 steel of different degrees of hardness, for example, in a thickness of 0.8 mm (this is the standard thickness for flat tongues).

For the production of the stamped part 10 For example, a conductor cutting technique can be used. For making the threaded hole 8th may be provided to first attach a pre-hole and then by means of pulling a cylindrical approach to form, in which then the thread 13 can be rolled. The notch in the bridge can be made by embossing.

According to the described embodiments, the connection part according to the invention is suitable 1 for conductor cross sections of a conductor 4 in the range of 0.5 to 10 mm ² . This in 12a For example, the dimension denoted by "a" may be 4.6 mm and the dimension labeled "b" may be 4.2 mm. As a purely exemplary indication should be mentioned that the unbent punched part of the flat tongue 17 to the tab 12 about 43 mm and in its longitudinal extent (ie perpendicular thereto) can be about 28 mm long.

Farther the connection part according to the invention is suitable for all Types of conductors, in particular in the form of stiff wires and strands. It is In particular, it does not require the conductor before the connection with a wire end sleeve to provide.

The inventive connector can for currents be used in the range of for example 16 to 41 A.

The Advantages of the invention can be summarized as follows.

• - The Connector is easy to manufacture. He only consists of two parts, a stamped part and a screw.
• - The connection part is especially easy to use. It can be delivered ready for installation, ie with already opened cage. A preparatory operation in which the cage is closed It does not need to be opened next.
• - The Assembly-ready connector has no loose parts in the Transport a rattling or the like could cause.
• - The connector is suitable for all types of conductors in a cross-sectional area of about 0.5 to 10 mm ² .
• - It can wires without wire end ferrules be connected.
• - On lateral slipping out of the ladder is excluded.
• - Of the Application range of the connection part is in the range of 16 to 41 amps, unconsidered on the tension.

1

connector

2

accommodation space

3

receiving opening

4

conductor Core

5

upper wall

6

lower wall

7

Through Hole

8th

threaded hole

9

clamping screw

10

stamping

11

recess

12

flap

13

thread

14

front web

15

rear bridge

16

notch

17

first flat tongue

18

second flat tongue

19

third flat tongue

20 20 '

rear wall

30

electric wire

31

widened portion of the recess 11

32

anchor neck

33

left wall

34

Clear cut

35

approach

36

recesses

37

can

130

ladder (State of the art)

131

clamping screw (State of the art)

132

Conductor support surface (stand of the technique)

133

lateral Boundary wall (prior art)

140

mother (State of the art)

141

clamping screw (State of the art)

Claims (14)

Electrical connection part, comprising - a receiving space ( 2 ) with a receiving opening ( 3 ) for at least one electrical conductor ( 4 ), the receiving space ( 2 ) at least two walls ( 5 . 6 ), and - a rotatably mounted clamping screw ( 9 ), by the operation of a relative movement of the two walls ( 5 . 6 ) is achievable, characterized in that the two walls ( 5 . 6 ) in the assembly-ready state of the connection part ( 1 ) by a bent one-piece stamped part ( 10 ) are formed. Connecting part according to claim 1, characterized in that the stamped part ( 10 ) a recess ( 11 ) and a tab ( 12 ), wherein the tab ( 12 ) in the recess ( 11 ) and can be hung in this. Connecting part according to claim 1 or 2, characterized in that the two walls ( 5 . 6 ) are arranged substantially plane-parallel. Connecting part according to claim 3, characterized in that the recess ( 11 ) has an elongate portion substantially perpendicular between the two walls (FIG. 5 . 6 ) runs. Connecting part according to one of the preceding claims, characterized in that one of the two walls ( 6 ) a threaded hole ( 8th ) for the clamping screw ( 9 ) having. Connecting part according to claim 5, characterized in that the other wall ( 5 ) a through hole ( 7 ) for the neck of the clamping screw ( 9 ) and the stamped part ( 10 ) in an area between the threaded hole ( 8th ) and the through hole ( 7 ) has a portion of reduced material width. Connecting part according to claim 6, characterized in that the portion of reduced material width by a web or by at least two webs ( 14 . 15 ) is formed. Connecting part according to claim 7, characterized in that at least one web at least one notch ( 16 ) having. Connecting part according to one of the preceding claims, characterized in that the connecting part ( 1 ) at least one contact extension, preferably in the form of a flat tongue ( 17 . 18 . 19 ) having. Connecting part according to claim 9, characterized in that the contact extension ( 17 ) as a projection of a wall section of the receiving space ( 2 ) is formed. Connecting part according to one of the preceding claims, characterized in that the Recording room ( 2 ) one of the receiving opening ( 3 ) opposite back wall ( 20 ), preferably by a bent extension of one of the two walls ( 5 . 6 ) is formed. Electrical connection part ( 1 ), comprising - a recording room ( 2 ) with a receiving opening ( 3 ) for at least one ladder ( 4 ), the receiving space ( 2 ) at least two walls ( 5 . 6 ), and - a rotatably mounted clamping screw ( 9 ) for a relative movement of the two walls ( 5 . 6 ), characterized in that the two walls ( 5 . 6 ) with respect to the clamping screw ( 9 ) are biased. Connecting part according to claim 12, characterized in that the bias voltage relative to the clamping screw ( 9 ) through the walls ( 5 . 6 ) is caused by itself or by a separate tension or spring element. Electrical connection part ( 1 ), comprising - a recording room ( 2 ) with a receiving opening ( 3 ) for at least one ladder ( 4 ), the receiving space ( 2 ) at least two walls ( 5 . 6 ), and - a rotatably mounted clamping screw ( 9 ) for a relative movement of the two walls ( 5 . 6 ), characterized in that the receiving space ( 2 ) seen in the insertion direction of the conductor, having a closed gap-free contour.