EP3210260A1

EP3210260A1 - Arrangement for connecting two electrical conductors

Info

Publication number: EP3210260A1
Application number: EP15781953.3A
Authority: EP
Inventors: Markus Eckel; Wilhelm Grzywok; Uwe Hauck
Original assignee: TE Connectivity Germany GmbH
Current assignee: TE Connectivity Germany GmbH
Priority date: 2014-10-21
Filing date: 2015-10-21
Publication date: 2017-08-30
Anticipated expiration: 2035-10-21
Also published as: CN107078409B; US10476180B2; DE102014221347A1; JP6537604B2; JP2017531906A; US20170229789A1; CN107078409A; EP3210260B1; WO2016062736A1; WO2016062476A2

Abstract

The invention relates to an arrangement for connecting two electrical conductors, in particular for connecting cable shoes and/or busbars. In order to provide an arrangement by means of which safety against electric shocks for a person working with the arrangement is improved and in which two conductors can be easily connected to one another and/or disconnected from one another, the invention provides an arrangement for connecting a first electrical conductor (9) to a second electrical conductor (13), said arrangement having a contact-pressure adapter (3) which has a receptacle (7) for the first conductor (9) and at least one contact-pressure element (29) which can be operated from the outside, and having a housing-like contact-protection means (5) having a receptacle (11) for the second conductor (13), wherein the contact-protection means (5) can be inserted into a chamber (19) in the contact-pressure adapter (3) along an insertion direction (E) and has at least one contact-making slot (67) which runs parallel to the insertion direction (E) and releases an interior (69) of the contact-protection means (5) for making contact with the outside.

Description

Arrangement for connecting two electrical conductors

The invention relates to an arrangement for connecting a first electrical conductor to a second electrical conductor. In particular, the invention relates to an arrangement for connecting two electrical conductors, of which at least one electrical conductor is a busbar or a cable lug.

Arrangements for connecting electrical conductors are known. Often, two conductors are connected by plugging together. In the field of high voltages and / or currents, however, plug-in connections are often impractical, since in this case massive conductors are often used with which plug-in connectors can only be realized inadequately. In particular for connecting at least one busbar or a cable lug to another conductor screw connections are used. For example, a cable lug with an opening for a screw can be screwed to a busbar or a second cable lug. In this case, either a screw protrudes through the cable lug and is screwed with a press-in nut in the busbar, or the screw protrudes through both parts and is provided with a nut, so that the busbar and the cable lug between the screw head and nut are clamped.

Similar connections are used if two busbars or two cable lugs are to be connected together. This method of connection is complex and has some disadvantages. For example, screw and / or nut may be lost when connecting or disconnecting the conductors. Another known problem may be that a screw can not be completely unscrewed from both ladders. It may happen that, when the screw has reached the end of a maximum path, it completely penetrates one of the two conductors and at the same time is partially arranged in the other conductor. A mutual separation of the two conductors is made difficult to impossible. Another known disadvantage is that at least one of the two conductors is often inadequately or not at all protected against contact and therefore can jeopardize the security of a person handling at least one of the conductors.

It is therefore the object of the invention to provide an arrangement for connecting a first electrical conductor to a second electrical conductor, by means of which the two conductors can be repeatedly connected or disconnected from one another without difficulty, and the risk of electric shock is reduced compared to known connection arrangements is. According to the invention the object is achieved by an arrangement for connecting a first electrical conductor with a second electrical conductor, with a Anpressadapter having a receptacle for the first conductor and at least one externally operable pressing member, and with a housing-like contact protection with a receptacle for the Second conductor, wherein the contact protection in a chamber of the Anpressadapters along a insertion direction can be inserted and at least one parallel to the insertion direction extending Kontaktierungsschlitz which releases an interior of the contact protection for Kontak- outward.

The solution according to the invention solves the problem particularly advantageous. The contact protection can effectively prevent unwanted contact of a second conductor received in the contact protection by a person or another part. The contacting slot can release a received second conductor to the outside, so that it can be connected to a first conductor. By means of the externally actuable pressing device, the first and the second conductor can be pressed against each other in the pressing adapter, so that an electrical connection between the two conductors can be produced. A direct screw connection of the two conductors with one another can thus be dispensed with, which is why the two conductors can be repeatedly connected to one another or detached from one another without difficulty. The contact slot, when the contact protection is accommodated in the chamber, release the interior of the contact protection, in particular for receiving the first conductor. A contacting of the two conductors can then take place in the region of the contacting slot. The at least one contacting slot may extend either in the direction of its longitudinal extension parallel to the insertion direction, or else in a depth direction.

The solution according to the invention can be further improved by various configurations which are advantageous in each case and can be combined with one another as desired. These embodiments and the advantages associated with them are discussed below.

According to a first advantageous embodiment, the pressing member may be configured for separately operable frictional connection of a first conductor arranged in the contact pressure adapter and a second conductor received in the contact protection. Two conductors can therefore be held together in the Anpressadapter by a frictional connection. At the same time they are electrically connected to each other via the frictional connection. The pressing member can be operated independently of the insertion of the conductor in the Anpressadapter. For example, at first the contact protection with the second conductor can be inserted into the contact pressure adapter and then the contact pressure element can be actuated. A particularly good connection between the first and the second conductor can be obtained by the fact that a normal force acting perpendicular to the insertion direction between the first and the second conductor can be generated by the pressing member. This is particularly advantageous for the case that the direction of the longitudinal extent of the at least one contacting slot is parallel to the insertion direction.

The pressure element can be arranged with inserted contact protection over the at least one contacting slot. This allows the pressing member to press the first conductor in the direction of the contacting slot. Preferably, the receptacle for the first conductor between the at least one contacting slot and the pressing member is arranged. A direction of action of the pressing member may be directed to the contacting slot. In this way, a normal force acting perpendicular to the insertion direction between the first and the second conductor can be generated when the direction of the longitudinal extent of the at least one contacting slot is parallel to the insertion direction.

In order to prevent a loss of the contact pressure, the pressing member can be held captive on the Anpressadapter. In particular, the Anpressorgan be movably held on Anpressadapter so that it is well operable despite captivity.

A particularly simple contact pressure can be obtained, that the pressing member is formed by a screw. The screw can be arranged so that a screw longitudinal axis is arranged perpendicular to the insertion direction. Alternatively, in particular if the at least one contacting slot extends parallel to the insertion direction with a depth direction, the longitudinal axis of the screw can also be arranged parallel to the insertion direction. The screw can be guided, for example, by a thread which is formed directly in the pressure adapter or by a separate nut which can be held in the pressure adapter. Alternatively, a mating thread for the screw may be formed in a connector attachable to the second conductor.

A captive screw can be given by the fact that the screw can only move up to a fixed position by a stop element against the direction of action. The position can be determined so that the screw completely releases at least one of the conductors, so that the conductors can be easily separated from each other. Since the pressing member, or the screw is screwed at least in an advantageous embodiment, not directly to one of the conductors, or does not penetrate the conductor, the connection of the two conductors together or the release of the two conductors can be particularly easily done. However, embodiments are also conceivable in which the screw in a pre-assembly by one of the the leader is led. The arrangement can be designed so that then at least in the connection of the two conductors can be omitted threading through the screw through at least one of the two conductors. In this way, it is possible that the two conductors are indeed held together by a screw connection, the above-described, known problems of the arrangements of the prior art, however, do not have to occur.

According to a further advantageous embodiment, the arrangement may comprise a movable force distribution element on which the pressing member can act. The force distribution element can distribute the normal force generated by the contact pressure element over a larger area, so that surface pressure of the pressure element on one of the two conductors can be reduced.

The force distribution element can be held captive on the pressing member. For example, the force distribution element can be connected via a ball joint with the pressing member. The pressing member can also penetrate the force distribution element at least one point in order to achieve a captive holder. If the force distribution element is to act on at least one of the conductors by pressing, the conductor may have a recess in the area where the force distribution element acts on the pressure element, in order to free space for the part of the pressure element penetrating the force distribution element.

To increase the safety in the operation of the at least one pressing member, the at least one pressing member may have an electrically isolated from the rest of the pressing member actuating portion for actuating the pressing member. If the contact pressure element is formed, for example, by a screw, then the actuating portion which is electrically insulated from the rest of the pressing element can be formed by an insulating cap on the screw head.

According to a further advantageous embodiment, the arrangement may comprise an electrically insulated at least from the Anpressadapter housing, wherein the actuating portion of the at least one pressing member is accessible from the outside. In particular, the housing can also protect contact conductors arranged in the contact adapter from external contact. The housing may have an opening to an operating side, which releases the chamber for the contact protection to the outside. To prevent accidental penetration of a finger or a tool in the opening, the opening may be surrounded by a protruding collar. In addition to the electrically insulated housing, the assembly may include a shield surrounding the assembly to electromagnetically shield the assembly outwardly. The arrangement may also have a security system or be connected to a security system. A safety system can be formed, for example, by a high-voltage interlock system (HVIL). As a result, it can be ensured that conductors arranged in the contact pressure adapter are no longer live, before an actuation of the contact pressure element or a handling with at least one of the conductors takes place.

The contact protection can be closed at a pointing in the insertion direction front end. This can further increase safety. This embodiment can be particularly advantageous if the contacting slot extends with its longitudinal direction parallel to the insertion direction. On the other hand, if the contacting slot runs parallel to the direction of insertion with a depth direction, then a firm closure could prevent or hinder the connection of the two conductors with one another. However, it is possible that the contacting slot is elastically closed, so that in a non-connected state the penetration of a finger, objects, or impurities is prevented. When connecting the two conductors together, however, the elastic closure can then be deflected, whereby the contacting slot is released for connection to the first conductor.

In order to obtain the largest possible contact surface and to facilitate the insertion of the contact protection in the Anpressadapter, the at least one contacting slot can extend continuously to the front end of the contact protection. The at least one contacting slot can simultaneously serve as a guide for the rectilinear insertion of the contact protection in the Anpressadapter. This can apply both for the case that the contacting slot extends with its longitudinal direction parallel to the insertion direction, as well as for the case that the contacting slot extends in a depth direction parallel to the insertion direction.

The at least one contacting slot is preferably designed such that a finger can not reach the interior of the contact protection. Preferably, the at least one contacting slot is configured such that a standardized test finger, for example a VDE test finger, can not contact a conductor received in the contact protection. The at least one contacting slot preferably has a slot width of about 2, preferably about 3 to about 4 mm, more preferably about 3.5 mm. In a Kontaktierungsschlitz whose longitudinal direction is parallel to the insertion, is a wall thickness of Protection against contact next to the contacting slot preferably about 1, 5 to about 2.5 mm. The wall thickness depends on the slot width. A larger slot width requires a higher wall thickness to prevent the penetration of a finger into the contacting slot into the interior of the contact protection. In order to ensure effective contact protection with a slot width of about 3.5 mm, the wall thickness of the contact protection is preferably at least about 2 mm. Preferably, a ratio of slot width to wall thickness is 1, 75.

In order to provide sufficient contact area for a given width of a second conductor and at the same time to ensure effective contact protection, the contacting slot is preferably narrower than one third of an inner width of the contact protection in a configuration in which the longitudinal direction of the contacting slot runs parallel to the insertion direction. The inner width of the contact protection is preferably approximately the width of a conductor to be included in the contact protection. If the contact protection has a single contact slot on one side, then the one contact slot is preferably centered, i. arranged at the same distance to the sides of the contact protection on the contact protection.

According to a further advantageous embodiment, the arrangement comprises a first conductor accommodated in the receptacle of the contact pressure adapter and a second conductor accommodated in the receptacle of the contact protection, the first conductor being connected at least in one end section arranged in the receptacle by a busbar and the second conductor at least in one in the contact protection arranged end portion is formed by a cable lug, or vice versa. The arrangement according to the invention can therefore be used particularly advantageously for connecting a cable lug to a busbar. In this case, the Anpressadapter can be arranged both on the side of the busbar or on the side of the cable lug. The other conductor is then arranged in the contact protection and can be inserted into the Anpressadapter. It is also possible for the end sections of the first and second conductors to be formed by cable lugs or busbars.

The end portions of the first and the second conductor may have planar flat body whose flat sides are arranged perpendicular to each other when the conductors are accommodated in the Anpressadapter. It is particularly advantageous if one of the conductors is arranged centrally to the second conductor. It when the first conductor is arranged vertically standing centrally above the contact protection and can be pressed by the pressing member in the at least one contacting slot is particularly advantageous. So the two conductors in the press adapter particularly simple and effective at the same time pressed together. The at least one pressing member then acts on the second conductor opposite narrow side of the end portion formed as a flat body of the first conductor. In order to reduce a surface pressure on the narrow side of the end portion of the first conductor, a movable force distribution element may be disposed between the at least one pressing member and the first conductor. This is particularly advantageous if the first conductor is a busbar. Busbars are often formed from alloys that contain mostly copper and are therefore easily deformable. The movable force distribution element can then prevent damage to the busbar by the pressing member.

According to a further advantageous embodiment, at least one contact-making element connected to the first conductor can be frictionally held in the at least one contacting slot by the contact-pressure element on the second conductor when the contact protection is inserted into the chamber. The at least one contacting element preferably establishes the electrical connection between the first and the second conductor. In a particularly simple embodiment, the at least one contacting element may be formed monolithically with the end portion of the first conductor or connected thereto by suitable joining techniques such as pressing, welding or bolting.

The at least one contacting element can be formed by at least one edge extending parallel to the insertion direction in the end section of the first conductor. As a result, a particularly advantageous electrical contacting can be achieved since the two conductors can be connected directly to one another. In particular, in the case of conductors arranged perpendicular to one another, the edge of the first conductor may represent the contacting element and be pressed into the contacting slot in the contact protection on the second conductor. The at least one edge running parallel to the insertion direction preferably has a substantially straight flat section. For example, the edge may be formed by the narrow side of a flat body. As a result, a particularly large contact area between the two conductors can be obtained.

According to an alternative to the embodiment of the contacting element as the edge of an end section, the at least one contacting element can also be designed as a contacting rib projecting from the first conductor. The first conductor may then be pressed in the direction of the second conductor such that the contacting rib is pressed through the contacting slot to the second conductor. As already described above, However, the contacting element may also be formed as a part connected to the first conductor.

The at least one contacting element may also be formed as a rib on at least one force distribution element, provided that the force distribution element is conductively connected to the first conductor.

The contact protection can have at least one support slot which is arranged on a side of the contact protection opposite the contact pressure element. The contact pressure adapter can have at least one support rib formed complementary to the support slot. The at least one support rib can then support the second conductor in the pressed-on state and hold in a form-fitting manner at least in the effective direction of the at least one pressing element. The at least one support rib and the at least one support slot can also serve to guide the contact protection when inserted into the Anpressadapter. In the pressed-on state, the at least one support rib can be frictionally held on the second conductor through the at least one support slot. If the at least one support rib is electrically connected to the first conductor, then there is also an electrical allocation between the first and the second conductor via the at least one support rib. In this case, the support slot is simultaneously another contacting slot. The at least one support rib in this case represents a contacting element, which is held by friction in the contacting slot on the second conductor.

According to a further advantageous embodiment, the first conductor may have an end portion which has a U-shaped profile in a cross-section transverse to the insertion, and wherein the legs of the U-shaped profile under the action of the Anpressorgans pressed by at least two Kontaktierungsschlitze through to the second conductor are. The legs of the U-shaped profile then represent two contacting elements. With this variant, a more compact design compared to the arrangement of two mutually perpendicular flat body can be achieved. In addition, a contacting of the two conductors takes place at least two positions, whereby a particularly good electrical contact between the two conductors is achieved. The legs can be shaped so that they are perpendicular to a surface of the second conductor at least in the region of a joint between the first and second conductor. The second conductor is preferably formed in this case at least in the end portion by a flat body. As already described above, a further advantageous embodiment of the arrangement according to the invention has at least one contacting slot whose depth direction is parallel to the insertion direction. This embodiment is discussed below. This advantageous embodiment preferably has an electrically conductive connecting piece which can be fastened to the second conductor and which is surrounded at least in sections by at least one outer wall of the housing-like contact protection. The connector has a complementary to the pressing member formed receptacle for the pressing member, wherein the pressing member is used parallel to the insertion direction in the receptacle, and wherein the contacting slot extends at least partially around the receptacle for the pressing member around. The connector may extend the second conductor so that it can be accommodated in the form of the connecting piece in the receptacle for the second conductor in the housing-like contact protection.

The electrically conductive connector can be connected to each other before the connection of the two conductors, or in the course of a pre-assembly with the second conductor. The connector can be connected in particular by welding, screwing or pressing with the second conductor. The second conductor may in particular be a busbar. The connector is advantageous for contacting the second conductor at any location. The contact is therefore not limited to an end portion of the second conductor.

Preferably, a longitudinal axis of the connecting piece runs parallel to the insertion direction. The receptacle can be formed centrally in the connecting piece, so that the connecting piece extends at least in sections coaxially with the receptacle. The connector may have a cylindrical outer surface which is coaxial with the receptacle. In particular, the connecting piece may have the shape of a bolt. However, other forms are conceivable. For example, the connecting piece may also have a rectangular or square cross-section. It is particularly advantageous if the connecting piece as a whole has a circular cross section, but deviates from the circular cross section at least at one point. For example, the connector may be flattened on one side. Due to the deviation from the circular cross section, a faulty fuse can be obtained. Thereby, the Anpressadapter and thus also the first conductor in only one or a limited number of several predetermined orientations are connected to the connector. The connecting piece may have on its outer side at least one undercut into which at least one projection of an inner side of the outer wall of the contact protection can engage in order to hold the outer wall of the contact protection securely and captively on the connecting piece. In addition, at least one sealing element between the connector and the inside of the outer wall of the contact protection may be present. For this purpose, the connecting piece, for example, on its outer side have a circumferential groove into which a sealing element, such as a sealing ring is used.

The receptacle for the pressing member may, for example, have an internal thread, with which a pressing member designed as a screw can be screwed. Alternatively, the receptacle can also have latching elements, for example undercuts, into which the pressing element can engage in order to connect the second conductor to the first conductor. The receptacle is preferably shaped as a blind hole. This can be dispensed with a threading through the Anpressorgans by the connector, or by the second conductor. To release the two conductors, it may therefore be sufficient to remove the contact pressure element from the receptacle. Then the two conductors can be separated from each other against the insertion direction.

The contacting slot may be formed in sections or continuously as a ring slot. This annular slot may be circular in shape. However, other shapes, such as oval or square, are possible.

The contacting slot can be delimited from the receptacle for the pressing member by a sleeve insertable into the connecting piece, which is permeable parallel to the insertion direction for the pressing member. The sleeve, which is preferably made entirely of an electrically insulating material, can form the same together with the outer wall of the housing-like contact protection. The sleeve can be used in the region of the open end of the receptacle in this and protrude from the connector in the insertion direction. In the other direction, or to the interior of the connecting piece, an internal thread for the pressing element can be connected in the receptacle to the sleeve. The sleeve may for example be pressed or glued into the receptacle. A further advantageous type of fastening can be achieved in that the receptacle in the connecting piece has at least one undercut into which at least one latching projection of the sleeve can engage, so that the sleeve is held captive on the connecting piece.

In the insertion direction, the outer wall and the sleeve preferably project beyond an insertion direction of the end of the connector. The height, up to the at least one of the two parts protrudes beyond the connecting piece, determines the depth of the contacting slot. The contacting slot is preferably so deep that an effective contact protection is formed, ie that a finger of a human hand or a VDE test finger can not pass through the contacting slot to the connector. Inadvertent contact of the connector, which is electrically connected in an assembled state with the busbar, can be effectively prevented.

Between the connecting piece and the outer wall of the housing-like contact protection, a guide slot may be arranged, which extends concentrically around the connecting piece and is designed to receive a housing part of the Anpressadapters. Through the guide slot of the Anpressadapter and arranged in this first conductor can be advantageously performed for connection to the second conductor. Furthermore, at least in a connected state, an interior of the arrangement may be closed or sealed towards the outside.

In a connected state, preferably both the housing part of the contact pressure adapter and the outer wall of the contact protection extend around the connecting part and around the pressing element arranged in the receptacle in the connecting part.

In order to seal the interior of the arrangement particularly well, at least one sealing element may be present. For example, the connecting piece may have a circumferential groove, in which a sealing element, such as a sealing ring, can be used. The sealing element can then press in a connected state against an inner wall of the housing part of the Anpressadapters. Alternatively or additionally, a sealing element can also be arranged on the inner wall of the housing part. It is also possible that at least one sealing element is arranged in the connected state between an inner side of the outer wall of the contact protection and the outer side of the housing part of the Anpressadapters.

In order to simplify the assembly or the connection of the two conductors with each other, the housing part of the Anpressadapters and / or the outer wall of the contact protection can have latching elements. During assembly, the two parts can initially be connected to each other so far that the locking elements mesh. This allows the two parts to be held together in a pre-assembly position. Subsequently, the pressing member can be actuated so that the two conductors are connected together. For example the latching elements can be formed by latching hooks on one of the two parts and corresponding counter-hooks or recesses on the other part.

The arrangement may comprise a contacting element which can be connected to the first conductor and which is designed to be complementary to the contacting slot and can be pressed against the connecting piece by means of the pressing member through the contacting slot. In this embodiment, therefore, the first and the second conductor are connected to each other indirectly. The first conductor is connected to the contacting element and the second conductor to the connector. For electrical connection of the two conductors, the contacting element is pressed by the contacting slot against the connecting piece.

The contacting element can be penetrated sleeve-shaped and parallel to the insertion of the pressing member. In this way, a uniform contact pressure on the contacting element can be generated by the pressing member. The contacting element can be frictionally and / or positively connected to the first conductor. For example, the first conductor may have an opening into which the contacting element can be pressed. Alternatively, the contacting element can also be welded to the first conductor, for example. Another alternative may be to screw the contacting element with the first conductor. The contacting element may for this purpose have an external thread which can be screwed into a complementary internal thread formed in the first conductor.

A further alternative is not to connect the contacting element firmly to the first conductor, but to retain it only captive in the pressing member with a secure connection with the first conductor only takes place in that the pressing member presses against the first conductor and the contacting element.

The pressing member may be electrically insulated at an end facing the second conductor. As a result, the safety in handling can be increased. In particular, the housing part of the Anpressadapters and the electrically insulated end of the Anpressorgans form a further protection against contact, is prevented in that a finger passes into an interior of the Anpressadapters and can touch electrically conductive parts of the Anpressorgans and / or the contacting element. The combination with the contact protection for the second conductor, the arrangement may thus have a two-sided contact protection.

The pressing member may have an electrically isolated from the rest of the pressing member actuating portion for actuating the pressing member. The operating section can thus be forms that it rests against an inner side of the housing of the Anpressadapters at least in the connected state of the two conductors. The actuating portion may be guided by the housing parallel to the insertion direction. At least one sealing element can be arranged between the actuating section and the housing. For this purpose, the actuating portion and / or the housing may have a circumferential groove into which a sealing element can be inserted. Preferably, the actuating portion is not completely out of the housing. As a result, it can be ensured that conductive parts of the contact pressure element can not be brought out of the housing or out of the pressure adapter, thereby preventing any undesired contact with conductive parts. For this purpose, the housing and / or the actuating member may have stop elements, such as, for example, latching projections and / or latching recesses, which engage with one another in such a manner that the removal of the actuating member from the housing is effectively prevented.

Preferably, the actuating portion is fixedly connected to the rest of the pressing member, so that the pressing member can be guided by the actuator in the housing. Since the pressing member, in particular when it is formed by a screw, generally has a longitudinally parallel to the insertion direction extending shape, tilting of the Anpressorgans from an orientation parallel to the insertion can be prevented by the firm connection with the operating section. The firm connection between the pressing member and the actuating portion and the guidance of the actuating portion in the housing parallel to the insertion direction can therefore additionally contribute to increased safety.

The invention is explained in more detail below by way of example with reference to advantageous embodiments with reference to the drawings. The feature combinations exemplified in the embodiments can be supplemented according to the above statements accordingly for a particular application by further features. Also, also in accordance with the above statements, individual features may be omitted in the described embodiments, if the effect of this feature in a specific application does not matter.

In the drawings, the same reference numerals are always used for elements of the same function and / or same structure.

Show it:

Figure 1 is a perspective view of a first embodiment of an inventive arrangement in a collapsed state without housing. 2 shows a cross section through the first embodiment with housing.

3 shows a longitudinal section through the first embodiment;

Fig. 4 is a perspective view of the first embodiment with housing;

Fig. 5 is an exploded view of the components of the first embodiment;

Fig. 6 is a perspective view of a second embodiment in a non-collapsed condition;

Fig. 7 is a perspective view of the second embodiment in a collapsed state with a cutout releasing a cross section of the second embodiment;

Fig. 8 is a perspective view of the second embodiment in a collapsed condition with a cutout releasing a longitudinal section through the second embodiment;

Fig. 9 is an exploded view of the second embodiment;

10 is a perspective view of a third embodiment in a non-collapsed state without a housing.

Fig. 1 1 is a perspective view of the third embodiment in a collapsed state, wherein a cutout releases the cross section of the third embodiment;

Fig. 12 is a perspective view of the third embodiment in a non-collapsed condition with a cut-away along the insertion direction;

Fig. 13 is an exploded view of the third embodiment;

Fig. 14 is a perspective view of a fourth embodiment in a non-collapsed condition with a cutout releasing a cross section of the fourth embodiment;

Fig. 15 is a perspective view of the fourth embodiment in a pre-assembly position; Fig. 16 is a perspective view of the fourth embodiment in a connected state.

A first advantageous embodiment of the arrangement according to the invention is described below with reference to FIGS. 1 to 5. 5 shows all components of the described embodiment individually in an exploded view.

The arrangement 1 has a contact pressure adapter 3 and a contact protection 5. The Anpressadapter 3 has a receptacle 7 for a first conductor 9 and the contact protection 5, a receptacle 1 1 for a second conductor 13. For example only, the first conductor 9 is shown as a busbar 15 and the second conductor 13 as a cable lug 17. Alternatively, it is possible that the first conductor 9 is formed by a cable lug 17 and the second conductor 13 by a busbar 15. It is also possible that the two conductors 9 and 13 are formed by bus bars 15 or cable lugs 17.

The Anpressadapter 3 has a chamber 19, in which the contact protection 5 along the insertion direction E can be inserted. The chamber 19 is open for receiving 7 for the first conductor 9, so that the first conductor 9 can protrude at least partially into the chamber 19. On the opposite side of the receptacle 7 21, the Anpressadapter 3, the two support ribs 23, which protrude into the chamber 19. The support ribs 23 extend oblong parallel to the insertion direction E. They are preferably formed monolithically with a body 25 of the contact pressure adapter 3. The body 25 of the Anpressadapter 3 is preferably formed as a casting. Further preferably, the body 25 is formed of a conductive material.

The receptacle 7 for the first conductor 9 is limited by two holding jaws 27, which may be formed monolithically with the body 25. The holding jaws 27 can guide the first conductor 9 during insertion into the Anpressadapter 3 and hold in a desired position. Preferably, the retaining jaws 27 limit the chamber 19 for the contact protection 5 in the direction of the receptacle 7. The chamber 19 and the receptacle 7 have a substantially oblong shape in cross section transverse to the insertion direction E (see Fig. 2) and are arranged perpendicular to each other. In this case, the chamber 19 is centrally open at a height between the two support ribs 23 for receiving 7 out. The oblong shape of the receptacle 7 extends parallel to a direction of action W of the pressing member 29. The pressing member 29 is configured to frictionally connect the first conductor 9 to the second conductor 13. The pressing member 29 may be formed as a screw 31. The screw 31 is guided by an internal thread 33 in the body 25 of the Anpressadapters 3. Alternatively, the Anpressadapter 3 may also have a nut which is connected to the body 25, to guide the screw 31. A rotation of the screw 31 about the screw longitudinal axis L leads to a movement of the screw 31 along or against the direction of action W. The screw 31 has a pointing against the direction of action W screw head 35 as an operating portion 41. Preferably, the screw head 35 has a screw head diameter 37 which is larger than a screw diameter 39. As a result, the screw 31 can not be completely countersunk in the internal thread 33. The body 25 then forms a stop for the screw head 35 in the direction of action W. The screw head 35 represents the actuating portion 41 of the pressing member 29. The actuating portion 41 does not necessarily have to be formed as a screw head 35. If the screw 31 is designed, for example, as a grub screw, then the actuating portion 41 can be formed on the end of the screw 31 facing the direction of action W, without going beyond the screw diameter 39. For example, the actuating portion 41 may be formed as a hexagon socket.

For electrical insulation of the pressing member 29 to the outside of the Anpressadapters 3, the pressing member 29, the electrically insulated actuating portion 43, which is preferably formed by an insulating cap 45. The insulating cap 45 may have the shape of a screw head to be actuated by a suitably ausgestaltetes tool. The insulating cap 45 is preferably formed from a plastic.

The arrangement 1 may have a housing 47 insulated at least from the pressure adapter 3. The housing 47 may have an opening 49 through which the electrically insulated actuating portion 43 of the pressing member 29 may project outwardly. The opening 49 is preferably small than a stop member 51 of the electrically insulated actuating portion 43. The stop member 51 may be formed as a circumferential ring or a screw head and form a stop for the electrically insulated actuating portion 43 against the direction of action W. The stop element 51 thus prevents a complete detachment of the pressing member 29 from the Anpressadapter. 3

The housing 47 also has a projecting towards the insertion E collar 53, which releases the chamber 19 for the contact protection 5. The collar 53 may prevent a finger, tool, or other part from entering the housing 47 and making electrical contact with any of the elements in the housing 47. Between the pressing member 29 and the receptacle 7 for the first conductor 9, a movable force distribution element 55 is arranged. The force distribution element 55 can distribute a force generated by the pressing member 29 in the direction of action W on a arranged in the receptacle 7 first conductor 9. The force distribution element 55 is preferably along the insertion direction E at least as long as the body 25 of the Anpressadapters 3. In a direction transverse to the insertion direction E and transverse to the direction of action W, the force distribution element is preferably wider than the screw diameter 39 and wider than the receptacle 7 for the first Head 9. The force distribution element 55 protrudes with the lying in and against the insertion direction E ends of the body 25 of the Anpressadapters 3 out. The ends 57 are preferably bent upwards against the direction of action W, so that the force distribution element 55 partially surrounds the body 25 with the ends 57. The force distribution element 55 is thereby secured against displacement along the insertion direction E. In the Anpressadapter 3, a receptacle 59 for the force distribution element 55 is present, the abutting surfaces 61 which secure the force distribution element 55 against movement parallel to the direction of action W. A distance 63 of the abutment surfaces 61 in the direction of the direction of action W is smaller than a length 65 of the bent ends 57 parallel to the direction of action W. As a result, the force distribution element 55 is held positively in the receptacle 59.

The contact protection 5 has a contacting slot 67, which runs parallel to the insertion direction E. The contacting slot 67 is arranged in cross section transversely to the insertion direction E centrally on the contact protection 5. The contacting slot 67 releases the interior 69 of the contact protection 5. The contacting slot 67 extends to a front end 71 of the contact protection 5. The contacting slot 67 has a slot width 68 transversely to the insertion direction E. A Wandstäke 70 of the contact protection 5 in the region of the contacting slot 67 is preferably selected so that a ratio of slot width 68 to wall thickness 70 is about 1.75. At the front end 71 of the contact protection 5 is closed. When the contact protection 5 is received in the chamber 19, the contacting slot 67 releases the interior 69 of the contact protection 5 for receiving 7 for the first conductor 9 back. The pressing member 29 is arranged above the contacting slot 67. In cross-section transverse to the insertion direction (FIG. 2), the longitudinal axis L of the pressing member 29 extending parallel to the direction of action W is arranged centrally above the contacting slot 67.

The contact protection 5 has on the side opposite the contacting slot 67 side 2 support slots 73. The support slots 73 are designed to be complementary to the support ribs 23 of the contact pressure adapter 3. Due to the interplay between support slots 73 and support ribs 23, the contact protection 5 can be performed during insertion into the chamber 19. At a rear end 75, the contact protection 5 preferably extends so far that electrically conductive parts of the second conductor 13 are completely covered. Preferably, an insulation 78 of the second conductor 13 projects into the contact protection 5.

The end portion 77 of the second conductor 13 is formed by the flat body 79 of the cable lug 17. The flat body 79 has an upper flat side 81 and a lower flat side 83. The upper flat side 81 is released by the contacting slot 67 for contacting with the first conductor 9. The lower flat side 83 is released through the support slots 73 to the support ribs 23 toward. The flat sides 81 and 83 are perpendicular to the effective direction W, when the second conductor 13 is received with the contact protection 5 in the chamber 19.

The cable lug 17 has the crimp area 85 behind the flat body 79. In the crimping area 85, the cable lug 17 is surrounded by the contact protection 5. The second conductor 13 is therefore protected by the contact protection 5 and the cable insulation 78 against touching.

The first conductor 9 is formed by a busbar 15 at least in its accommodatable in the receptacle 7 end portion 87. As already described above, the first conductor 9 can also have a cable lug whose end section can be accommodated in the receptacle 7 instead of the busbar. The end portion 87 of the first conductor 9 is formed as a flat body 89. The flat sides 91 of the first conductor 9 extend parallel to the effective direction W and parallel to the insertion direction E, when the first conductor 9 is received in the receptacle 7 in Anpressadapter 3. The flat sides 91 of the first conductor thus extend perpendicular to the flat sides 81 and 83 of the second conductor 13, when both conductors are arranged in the Anpressadapter 3. The flat sides 91 have a spacing 92 which corresponds at least to the slot width 68 of the contacting slot 67.

The flat body 89 of the first conductor 9 has an upper edge 93 and a lower edge 95, which run parallel to the insertion direction and form narrow sides of the flat body 89. The lower edge 95 forms the contacting element 97 of the first conductor 9. Since the contacting element 97 is formed by the lower edge 95 of the end section 87 or of the flat body 89, the contacting element 97 is monolithically formed with the first conductor 9. For contacting the first conductor 9 with the second conductor 13, the first conductor 9 is pressed against the second conductor 13. In this case, the pressing member 29 exerts a normal force acting in the direction of action W on the end portion 87 of the first conductor 9. The force is thereby by the Force distribution element 55 evenly distributed on the upper edge 93 of the end portion 87. The lower edge 95 of the end portion 81, which forms the contacting element 97, projects through the contacting slot 67 of the contact protection 5 and is pressed against the end portion 77 of the second conductor 13. The pressing by the pressing member 29 therefore ensures a frictional connection between the first conductor 9 and the second conductor 13 in the region of the contacting slot 67.

The end portion 77 of the second conductor 13 is pressed by the contact pressure of the Anpressorgans 27 against the support ribs 23. The second conductor 13 is thus pressed between the first conductor 9 and the support ribs 23 and the first conductor 9 is pressed between the force distribution element 55 and the second conductor 13. In addition to the electrical connection between the first conductor 9 and the second conductor 13 in the region of the contacting slot 67, therefore, an indirect electrical connection via the support ribs 23 to the end portion 77 of the second conductor 13 may exist. The body 25 of the Anpressadapter 3 can produce an electrical connection to the first conductor 9. This additional electrical connection can, for example, be communicated to the first conductor 9 via the holding jaws 27 and / or via the contact pressure element 29 and / or the force distribution element 55.

To connect the two conductors 9 and 13, the pressing member 29 is preferably operated so that at least one of the two conductors 9 and 13 or both can be easily inserted into the respective receptacle. Only when both the first conductor 9 and the second conductor 13 are arranged with the contact protection 5 in the respective receptacles or the chamber 19, the pressing member 29 is actuated so that a force along the direction of action W on both conductors 9 and 13 exercised becomes. The pressing member 29 is thus operated separately.

In the following, a second advantageous embodiment with reference to FIGS. 6 to 9 is described. For the sake of brevity, only the differences from the previously described first embodiment are mentioned.

The arrangement 1 has a contact protection 5, in which the end portion 77 of the second conductor 13 is arranged. In contrast to the first embodiment, the second conductor 13 is formed by a bus bar 15 in the second embodiment. Alternatively, it is possible that the second conductor 13 is formed by a cable lug. The contact protection has two contacting slots 67, which are arranged next to each other and parallel to each other and parallel to the insertion direction E. The contacting slots 67 are opposite the support slots 73. The contact protection 5 may be formed as part of a housing be, of which a housing wall portion 99 is shown. The housing wall portion 99 preferably extends perpendicular to the insertion direction E.

As in the first embodiment, the Anpressadapter 3 of the second embodiment, a chamber 19, in which the contact protection 5 along the insertion direction E is inserted.

The first conductor 9 is formed as a cable lug 17. If the second conductor 13 is likewise formed as a cable lug, the arrangement 1 can serve to connect two cable lugs to one another. Another alternative may be that the first conductor 9 is also formed by a busbar. The second conductor can then also be either a cable lug or a busbar. The end portion 87 of the first conductor 9 has a U-shaped profile in a cross-section transverse to the insertion direction E (see FIG. 7). The two legs 101 of the U-shaped profile form two flat bodies 89 of the first conductor 9 with the flat sides 91, which are arranged perpendicular to the flat sides 81 and 83 of the flat body 79 of the second conductor 13. The flat body 89 extend parallel to the direction of action W and the insertion direction E. A transverse leg 103 of the U-shaped profile forms a flat body which extends at least partially perpendicular to the direction of action W and parallel to the insertion direction E. At the transverse leg 103, the pressing member 29 can attack. The transverse leg 103 distributes the force generated by the pressing member 29 in the direction of action W on the two legs 101. The legs 101 and the transverse leg 103 may be formed by stamping bending or by other forming technique from a formerly flat cable lug 17. If the first conductor 9 is formed by a busbar 15, the busbar 15 can also be shaped by suitable shaping techniques such that two legs 101 and one transverse leg 103 are formed.

At the free leg ends 105, the first conductor 9 has lower edges 95 running parallel to the sliding direction E. These lower edges 95 form two contacting elements 97. The contacting elements 97 can contact the second conductor 13 projecting through the contacting slots 67. When making contact, the leg ends 105 face the support ribs 23 parallel to the direction of action W. As a result, the second conductor 13 can be supported particularly well and a particularly frictional connection between the first conductor 9 and the second conductor 13 can be produced.

The body 25 is divided into two and has a lower contact portion 107 and an upper pressing portion 109. Alternatively, the body 25 may consist of a single part. The pressing portion 109 has a substantially U-shaped cross-section to the insertion direction E, wherein end portions 1 1 1 of the legs of the U-shaped cross section are bent towards each other. The contact portion 107 has two opposing parallel to the insertion direction E and two sides transverse to the direction of action W open grooves 1 13, in which the leg ends 1 1 1 of the Anpressabschnitts can be added. The contact portion 107 and the Anpressabschnitt 109 can be joined together by pushing along the insertion direction E. Are both parts pushed together, the parts are positively held along the direction of action W together.

The pressing portion 109 has an internal thread 33 for the screw 31 formed as pressing member 29. The internal thread 33 is part of a Einpressmutter 1 15, which is arranged in a complementary opening 1 17 in the Anpressabschnitt 109. Alternatively, the internal thread 33 may also be formed directly in the Anpressabschnitt 109.

The contact portion 107 has two Kontaktierungsschachte 1 19, which open the receptacle 7 for the first conductor 9 to the chamber 19 out. The Kontaktierungsschachte 1 19 allow the legs 101 of the first conductor 9 to contact the second conductor 13. In a connected state, the legs 101 protrude through the contacting shafts 1 19 and the contacting slots 67 up to the second conductor 13. The contacting shafts 1 19 are closed in the insertion direction E and against the insertion direction E. If the legs 101 of the first conductor 9 are arranged in the contacting shafts 1 19, then the legs 101 are held positively in the insertion direction E in the contacting shafts 1 19. The conductor 9 can thereby be secured against being pulled out against the insertion direction E.

The arrangement 1 preferably has a housing 47 which electrically isolates the contact pressure adapter 3 and the first conductor 9 located in the contact pressure adapter 3 from the outside. Preferably, the housing 47 extends in the insertion direction E until it covers a cable insulation 7, 8 of the first conductor 9. Against the insertion direction E projects a collar 53, which releases the chamber 19 for insertion of the contact protection 5 and the second conductor 13. An opening 49 in the housing allows an electrically insulated actuating portion 43 of the pressing member to be actuated from outside the housing. Preferably, the opening 49, as in the first embodiment, designed so that the electrically insulated actuating portion 43 can not completely penetrate through the opening 49 to the outside, whereby the pressing member 29 is held captive on Anpressadapter 3. The housing 47 may be formed in two parts with a lower shell 121 and an upper shell 123, which are designed together cleavable. Hereinafter, a third embodiment will be described with reference to FIGS. 10 to 13. Only the differences from the previously described embodiments are mentioned.

The third embodiment is designed for the indirect contacting of the first conductor 9 with the second conductor 13. For example only, the first conductor 9 is shown as a cable lug 17 and the second conductor 13 as a busbar 15. As in the previously described embodiments, all combinations of cable lug 17 and busbar 15 are also conceivable here. The first conductor 9 is held in a receptacle 7, which is arranged in the insertion direction E behind the chamber 19 for the contact protection 5. Trained as a cable lug 17 first conductor 9 is bolted to the body 25 of the Anpressadapter 3. For this purpose, the first conductor 9 has an opening 125 in its end section 87. Through the opening 125, a screw 127 can protrude, which is screwed into a thread 129 in the body 25. Between screw 127 and the first conductor 9, a washer 131 can also be arranged. The body 25 is formed of an electrically conductive material so that the body 25 becomes part of the conductor 9. The Anpressadapter 3 has a force distribution element 55 which is acted upon by the pressing member 29 in the direction of action W with pressure. The force distribution element 55 has a parallel to the insertion direction E extending and projecting in the direction of action W Kontaktierungsrippe 133. The contacting rib 133 is arranged above the contacting slot 67 and can be pressed by the pressing member 29 through the contacting slot 67 onto the second conductor 13. The contacting rib 133 then constitutes a contacting element 97. The contacting rib 133 can be electrically conductively connected to the body 25 via the screw 31 and therefore establish electrical contact between the first conductor 9 and the second conductor 13. In a contacting, the second conductor 13 is pressed in the region of the support slots 73 on the support ribs 23 which are formed monolithically with the body 25. This additionally creates an electrical contact between the first conductor 9 and the second conductor 13 via the support ribs 23.

By screwing the first conductor 9 to the body 25, the first conductor 9 may have any desired shape. In addition to the aforementioned forms cable lug 17 or busbar 15, the first conductor 9 may also be a cable which is pressed against the body 25 via a suitably shaped washer 131. The washer 131 may, for example, have the form of a bracket, so that a multi-core cable can be pressed by the screw 127 to the body 25. A fourth advantageous embodiment of the arrangement according to the invention is described below with reference to FIGS. 14 to 16. At first, the structure will be described with reference to FIG. The connection of the two parts, or the two conductors together is described below with reference to FIGS. 15 and 16.

The arrangement 1 according to the invention comprises a Anpressadapter 3 with a receptacle 7 for the first conductor 9 and a housing-like contact protection 5 with a receptacle 1 1 for the second conductor 13. The contact protection 5 can be inserted into a chamber 19 of the Anpressadapters 3 along the insertion direction E and has a parallel to the insertion direction E extending contacting slot 67 which releases an interior 69 of the contact protection 5 for contacting to the outside. In this case, the contacting slot 67 runs with its depth direction T parallel to the insertion direction E.

The fourth embodiment is particularly advantageous when a connection is not to be made between the end portions of cables and / or bus bars, but, for example, to a piece of a conductor which does not represent the end portion of the conductor. This is illustrated in FIGS. 14-16 by way of example with reference to a busbar 15.

First, the part of the arrangement 1 according to the invention which is located on the second conductor 13 is described. For example only, it is shown that the arrangement 1 is used to connect a busbar 15 with a cable lug 17. The busbar 15 may be surrounded at least in the region of the arrangement 1 by a casing 135 which isolates the busbar 15 to the outside.

With the busbar 15, a connecting piece 137 is electrically connected, which is part of the arrangement 1. The connecting piece 137 serves to extend the busbar 15 and represents the second conductor 13, which is received in the receptacle 1 1 of the contact protection 5.

The connector 135 has a base 139 at which it is connected to the bus bar 15. The connection between the base 139 and the busbar 15 can be done for example by welding, screwing or pressing. In a connection by screwing, for example, a screw (not shown) can be guided through the busbar 15 and screwed into an internal thread (not shown) in the connecting piece 137. The screw head can then abut against the connecting piece 137 opposite side of the busbar 15 at the same. The connecting piece 137 extends along a longitudinal axis 140 parallel to the insertion direction E away from the base 139. Preferably, the connecting piece 137 has a substantially cylindrical shape. The connecting piece 137 preferably has the shape of a bolt. When formed as a bolt, a longitudinal axis of the bolt extends parallel to the insertion direction E. The end 141 facing away from the base 139 is accessible through the contacting slot 67 and can be brought into contact with the contacting element 97 of the first conductor 9. In this case, the contacting slot 67 may be formed as a ring slot 143.

The connecting piece 137 has a receptacle 145 for the pressing member 29. The receptacle 145 extends parallel to the longitudinal axis 140 in the connecting piece 137 inside. Preferably, the receptacle 145 is formed as a blind hole 146, the open end facing in the insertion direction E. In the direction of the base 139, the receptacle 145 is preferably closed. Preferably, the receptacle 145 is arranged centrally in the connecting piece 137 so that it extends coaxially to the longitudinal axis 140 of the connecting piece 137.

Alternatively, the receptacle 145 can also extend continuously through the connecting piece 137, ie also through the base 139 thereof, so that an opening (not shown) on the base 139 can be used to connect the connecting piece 137 to the busbar 15.

Preferably, the receptacle 145 has an internal thread 147 into which the pressing member 29 formed as a screw 31 can be screwed. Is, as described above as an alternative, the receptacle 145 throughout and not formed as a blind hole, so the internal thread 147 may extend to the opening in the base, so that a screw (not shown) through the busbar 15 and out with the internal thread in the Base 139 can be screwed.

At the end 141 facing away from the base 139, a region 148 may be arranged, in which the diameter 149 of the receptacle 145 is greater than the diameter 151 of the receptacle 145 in the region of the internal thread 147. This region 148 can serve to accommodate the sleeve 153.

The sleeve 153 can delimit the contacting slot 67 for receiving 145 out. A longitudinal direction of the sleeve 153 preferably extends coaxially to the longitudinal axis 140 of the connecting piece 137. The sleeve 153 is preferably held captive in the receptacle 145. The sleeve 153 may be pressed or glued, for example, in the receptacle 140. special It is advantageous if the sleeve and / or the connecting piece 137 in the region 148 locking means which can engage in order to hold the sleeve 153 in the receptacle 145. In Fig. 14 latching means 155 are shown only schematically. For example, the connector 137 in the region 148 on an inner wall of the receptacle 145 have at least one undercut 157, into which at least one latching hook 159 of the sleeve 153 can engage. The undercut 157 may be formed, for example, as a recess or as a circumferential groove on the inner wall of the receptacle 145.

On its side opposite the sleeve 153, the contacting slot 67 is bounded by the outer wall 161 of the contact protection 5. The outer wall 161 is preferably cylindrical about the connector 137 and is coaxial with the longitudinal axis 140 of the connector 137. Preferably, the outer wall 161 protrudes in the region of the base 139 of the connecting piece 137 into a recess 163 of the sleeve 135 in order to ensure continuous insulation around the busbar 15 and around the connecting piece 137.

At least in the region of the base 139, the outer wall 161 can rest directly on the connecting piece 137. Preferably, the outer wall 161 is held in this area on the connecting piece 137. For example, the outer wall 161 may be pressed onto the connecting piece 137. Preferably, however, the outer wall 161 is latched to the connecting piece 137. For example, locking elements may be arranged in the area of the base 139 both on the connecting piece 137 and on the outer wall 161, which locking elements can engage in order to hold the outer wall 161 on the connecting piece 137. For example, the connecting piece 137 may have a recess 165 in the region of the base 139 and the outer wall 161 may have a latching projection 167. Both elements are indicated in FIG. 14. The recess 165 may also be formed as a circumferential groove in the connecting piece 135.

It is also conceivable that the connecting piece 137 in the region of the base 139 has a circumferential groove (not shown) into which a sealing element (not shown) can be inserted in order to seal the area between the connecting piece 137 and the outer wall 161. Alternatively, a groove may also be formed in the outer wall 161, or a sealing member may be disposed between the outer wall 161 and the connecting piece 137, with neither or both elements having a groove.

Between the connecting piece 137 and the outer wall 161, a guide slot 169 is provided, which is configured to receive a housing part 171 of the Anpressadapter 3. The guide slot 169 is preferably disposed around the connector 137 circumferentially and coaxially therewith. The guide slot 169 is preferably located in the region of the base 139. overlying end 141 of the connector 137 in the contacting slot 67 via. In order to obtain a seal between the connecting piece 137 and a housing part 171 arranged in the guide slot 169, the connecting piece 137 preferably has at least one circumferential groove 173 on its outer side into which a sealing element 175, preferably a sealing ring, is inserted.

In the illustrated embodiment, the contacting slot 67, the connecting piece 137, the outer wall 161 and the housing part 171 are shown with a circular cross-section or with a cylindrical shape. With this configuration, the Anpressadapter 3 can be connected in any desired orientation with respect to a rotation about the longitudinal axis 140 with the contact protection 5 and the connector 137.

However, if it is provided that at least one mounting position or orientation should be predetermined, the arrangement 1 can have a faulty fuse (not shown). This can be obtained particularly simply by virtue of the fact that the connecting piece 137 has a cross section deviating from the circular shape at at least one point. For example, the connecting piece 137 may be flattened on at least one side, wherein the flattening runs parallel to the longitudinal axis 140. The housing part 171 can then be shaped complementarily so that it can only be connected in such an alignment with the contact protection 5, in which the complementary parts fit into one another.

Both the outer wall 161 and the sleeve 153 preferably protrude so far beyond the end 141 of the connecting piece 137 in the insertion direction E that an effective contact protection 5 is formed to prevent contact between the connecting piece 137. The height 177, with the outer wall 161 protrudes beyond the end 141, and at the same time represents the depth of the Kontaktierungsschlitzes 67, it must be selected depending on the slot width 68, which is given by the distance between sleeve 153 and outer wall 161, against and vice versa. The slot width 68 and the height 177 are selected to be at least so large that a finger or a VDE test finger can no longer reach the end 141 of the connecting piece 137.

The sleeve 153 and the outer wall 161 can be flush with each other in the insertion direction E, but this is not absolutely necessary. For example, the outer wall 161 can be in the insertion direction E beyond the sleeve 153 to protect the sleeve 153 from damage. Alternatively, the sleeve 153 may continue to extend in the insertion direction E as the outer wall 161, to allow the earliest possible capture of the pressing member 29 in the connection of the two conductors together. The outer wall 161 can latching elements (not shown), which are connectable with complementary designed latching elements of the housing part 171 of the Anpressadapter 3. As a result, the housing part 171 can be held in a pre-assembly position on the outer wall 161, which can facilitate the handling of the arrangement 1.

The housing part 171 extends against the insertion direction of the chamber 19 of the Anpressadapter 3. In the chamber 19 of the contact protection 5 can be inserted. In an assembled state, the outer wall 161 is arranged circumferentially around the housing part 171 and the sleeve 153 inside the housing part 171. The housing part 171 is preferably substantially formed as a cylinder wall and extends coaxially to the longitudinal axis L of the Anpressadapter 29. In an assembled state, as shown in Figures 15 and 16, the longitudinal axis L of the Anpressadapters 29 and the longitudinal axis 140 of the connector 137th identical.

The Anpressadapter 3 has the contacting element 97, which is connectable to the first conductor 9 and in an associated state with this an extension of the same. The contacting element 97 may be annular and coaxial with the Anpressadapter 29 may be arranged. That is, the longitudinal axis L of the Anpressadapter 29 simultaneously forms the ring axis.

The contacting element 97 can be fixedly connected to the first conductor 9 shown, for example, as a cable lug 17. The connection can be made for example by pressing, screwing or welding. In the illustrated embodiment, the contacting element 97 is pressed with a connecting portion 179 in a recess 181 in the cable lug 17. Alternatively, the contacting element 97 may be movably but captively held in the Anpressadapter 3. For this purpose, the housing part 171, for example, in the direction of Anpressadapter 29 directed, elastically deflectable locking elements which allow insertion of the contacting 97 into the Anpressadapter 3, but effectively prevent the contacting element 97 falls out of the Anpressadapter 3.

The receptacle 7 for the first conductor 9 and for the cable lug 17 extends perpendicular to the longitudinal axis L, so that the cable lug 17 intersects with its end portion 87, the longitudinal axis L of the Anpressadapter 29.

The Anpressadapter 29 is formed as a screw 31 and penetrates the contacting element 97 parallel to its longitudinal axis L. The screw head 35 is on a housing part 171 facing away from the contacting element 97. The screw head 35 is connected to an electrically insulated actuating portion 43, so that the screw can be actuated or rotated without a tool in electrical contact with the screw 31 occurs. The actuating portion 43 preferably has the shape of a cylinder jacket surface on its outer side 183. The housing 47 of the Anpressadapters 3 is formed at least in a region surrounding the actuating portion 43 as a hollow cylinder, so that the actuating portion 43 rests with its outer side 183 on the housing 47. As a result, the actuator 29 can be guided in the Anpressadapter 3 and secured against tilting transversely to the housing part 171. The screw head 35 is preferably fixedly connected to the actuating portion 43. This can be done, for example, by gluing the two parts together. Preferably, however, the screw head 35 is encapsulated or encapsulated with the material of the actuating section 43.

The screw head 35 can be designed so that it can press the contacting element 97 directly against the connecting piece 137. Alternatively, the contacting element 97 may also be arranged only on the side opposite the screw head 35 side of the cable lug 17, so that the screw head 35, the contacting element 97 indirectly via the cable lug 17 can pressurize.

In the illustrated embodiment, the screw head 35 is dimensioned so that it can act both the contacting element 97 directly, as well as a part of the cable lug 17 with pressure. As a result, on the one hand, a good connection of the contacting element 97 with the connection piece 137 can be ensured, and the cable lug 17 can be pressed against the contacting element 97, which can increase the security of the connection, since a loosening of the connection between the contacting element 97 and the cable lug 17 is prevented becomes.

The actuating portion 43 preferably has at least one circumferential groove 187 and a sealing element 189 received in the groove 187, so that a seal is formed between the actuating portion 43 and the housing 47 in the region 185.

On the outer side 183 of the actuating portion 43 and in the region 185 of the housing 43 locking elements may be attached, which can prevent a detachment of the actuating portion 43 and the associated screw 31.

On its side opposite the head 35 side, the screw 31 has the threaded portion 191, with which the screw 31 into the internal thread 147 of the receptacle 145 screwed is. At its end 193 opposite the screw head 35, the screw 31 has an insulating tip 195. The insulating tip 195 is formed of an electrically non-conductive material and held captive on the screw 31. The tip 195 preferably does not protrude beyond a free end 197 of the housing part 171. In this way, a contact protection on the side of the first conductor 9 may be formed by the tip 195 and by the housing part 171. In this case, a distance 199 between the tip 195 and the housing part 171 is selected so that a finger can not penetrate as far into a region between the screw 31 and the housing part 171 that an electrically conductive part of the screw 31 can be touched. For this purpose, the above-described firm connection of the screw head 35 with the electrically insulated actuating portion 43 and the same is in the region 185 of the housing 47 of particular advantage, since it can be prevented by these features that the screw 31 at a pressure on the screw 31st is deflected or tilted at its end 193 transversely to its longitudinal axis L, so that the distance 199 between the tip 195 and the housing part 171 is increased.

The arrangement 1 preferably has a sealing element 201, which encloses a cable insulation 78 of the first conductor 9 and thus seals the housing 47 in the region in which the conductor 9 is led out of the housing 47. Together with the sealing element 189 between the electrically insulated actuating portion and the housing 47, the housing 47 is therefore open to the outside only in the region of the chamber 19. In this case, the electrically conductive parts such as the screw 31, the contacting element 97 and the end section 87 are preferably accessible only through a region surrounded by the housing part 171.

The housing 47 still has a receiving slot 203 surrounding the housing part 171 for receiving the outer wall 161 of the contact protection 5, but the base 205 of the receiving slot 203 is closed, so that the electrically conductive parts of the Anpressadapter 3 are not accessible from the receiving slot 203. If the contact protection 5 is received in the chamber 19 with the connecting piece 137, the interior of the contact pressure adapter 3 or the electrically conductive elements arranged in the contact pressure adapter 3 can be sealed to the outside.

The assembly of the contact pressure adapter 3 with the contact protection 5 or the connection of the two conductors 9 and 13 with reference to FIGS. 15 and 16 is briefly described below. For the sake of clarity, only the reference numerals absolutely necessary for understanding are shown in FIGS. 15 and 16. For a detailed assignment of the reference numbers, reference is made to FIG. 14. To connect the contact protection 5 is first inserted into the chamber 19 in the insertion direction E. In this case, the outer wall 161 penetrates into the receiving slot 203, the housing part 171 into the guide slot 169 and the screw 31 into the receptacle 145. The contacting element 97 penetrates through the contacting slot 67 and abuts the end 141 of the connecting piece 137. The sleeve 153 penetrates with its free end into a receiving region 207 of the contacting element 97. The receiving region 207 is arranged between the screw 31 and the remaining contacting element 97. The screw 31 is first received with its threaded portion 191 in the sleeve 153. When inserting the contact protection 5 in the chamber 19, the screw 31 is displaced in the insertion direction E, so that the electrically insulated actuating portion 43 can protrude from the region 185 of the housing 47. For final connection, the pressing member 29 can be actuated by the screw 31 is screwed into the receptacle 145. For this purpose, a tool complementary to the electrically insulated actuating portion 43 can be used.

In a connected state, as shown in Fig. 16, the electrically insulated actuating portion 43 is preferably recessed in the housing 47. The contacting element 97 is pressed by the pressing member 29 against the connecting piece 137. As a result, an electrically conductive connection between the first conductor 9 and the second conductor 13 is produced. The electrically conductive parts of the assembly 1, in particular the connecting piece 137, the screw 31, the contacting element 97 and the cable lug 17 are sealed by the sealing elements 175, 189 and 201 and by the connection between the outer wall 161 and the base 139 to the outside.

reference numeral

arrangement

Anpressadapter

contact protection

Recording for first conductor

first leader

Recording for second conductor

second conductor

conductor rail

lug

chamber

the receptacle for the first conductor opposite side

support ribs

Body of the pressure adapter

holding jaws

pressure element

screw

inner thread

screw head

Screw head diameter

Screw diameter

actuating section

electrically insulated operating section

insulating

casing

opening

stop element

collar

Force distribution element

end up

admission

abutting surfaces

Distance between the abutting surfaces

Length of the ends

contact-

slot width

Heart of shock protection

Wall thickness

front end

support slots

rear end

End portion of the second conductor

cable insulation

Flat body of the second conductor

upper flat side

lower flat side

Crimping range

End portion of the first conductor

Flat body of the first conductor

Flat sides of the first conductor Flat side distance

upper edge

lower edge

contacting

Housing wall section

leg

transverse leg

leg ends

Contact section

pressing section

leg ends

groove

Einpressmutter

complementary opening

Kontaktierungsschächte

subshell

Upper shell

opening

screw

thread

washer

Kontaktierungsgruppe

shell

joint

Base of the connector

Longitudinal axis of the connecting piece

From the base groundbreaking end of the connector

ring slot

Admission for the pressing device

blind

inner thread

Area of recording

diameter

shell

latching means

undercut

latch hook

outer wall

recess

catch projection

guide slot

housing part

groove

sealing element

height

connecting portion

Recess in the cable lug

Outside of the operating section

Area of the housing

Groove in the operating section

sealing element 191 threaded section

193 end

195 Insulating tip

197 Free end of the housing part

199 distance

201 sealing element

203 recording slot

205 reason of the receiving slot

207 recording area

E insertion direction

L longitudinal axis

T depth direction

w effective direction

Claims

claims

Arrangement (1) for connecting a first electrical conductor (9) to a second electrical conductor (13), comprising a contact adapter (3) having a receptacle (7) for the first conductor (9) and at least one externally actuatable contact element (3). 29), and with a housing-like contact protection (5) with a receptacle (1 1) for the second conductor (13), wherein the contact protection (5) in a chamber (19) of the Anpressadapters (3) along a direction of insertion (E) can be inserted and at least one parallel to the insertion direction (E) extending contacting slot (67) which releases an interior (69) of the contact protection (5) for contacting to the outside.

Arrangement (1) according to claim 1, wherein the pressing member (29) is held captive on the Anpressadapter (3).

Arrangement (1) according to claim 1 or 2, with a movable force distribution element (55) on which the pressing member (29) acts.

Arrangement (1) according to claim 3, wherein the movable force distribution element (55) is held captive on the pressing member (29) and / or on the Anpressadapter (3).

Arrangement (1) according to one of claims 1 to 4, wherein the at least one pressing member (29) has an electrically to the rest of the pressing member (29) isolated actuating portion (43) for actuating the pressing member (29).

Arrangement (1) according to Claim 5, with a housing (47) which is electrically insulated at least from the contact pressure adapter (29), the electrically insulated actuating portion (43) of the at least one contact element (29) being accessible from the outside.

Arrangement (1) according to one of claims 1 to 6, wherein the contact protection (5) at a in insertion direction (E) facing the front end (71) is closed.

Arrangement (1) according to one of Claims 1 to 7, having a first conductor (9) accommodated in the receptacle (7) of the contact pressure adapter (3) and a second conductor (13) received in the receptacle (7) of the contact protection (5). in that the first conductor (9) passes at least in an end section (87) arranged in the receptacle (7) through a busbar (15) and the second conductor (13) at least in an end section (77) arranged in the contact protection (5) a cable lug (17) is formed, or vice versa.

9. Arrangement (1) according to claim 8, wherein when inserted into the chamber (19) contact protection (5) at least one with the first conductor (9) connected Kontaktierungs- element (97) in at least one contacting slot (67) through the at least one Pressing member (29) is frictionally held on the second conductor (13).

10. Arrangement (1) according to claim 8 or 9, wherein the first conductor (9) has an end portion (87) which in a cross-section transverse to the insertion direction (E) has a U-shaped profile, and wherein the legs 101 of the U -like profile under the action of the pressing member (29) through at least two contacting slots (67) therethrough to the second conductor (13) are pressed.

1 1. Arrangement (1) according to one of claims 1 to 6, with a second conductor (13) attachable electrically conductive connecting piece (137) which is at least partially surrounded by at least one outer wall (161) of the housing-like contact protection (5), and the one Complementary to the pressing member (29) formed receptacle (145) for the pressing member (29), wherein the pressing member (29) parallel to the insertion direction (E) in the receptacle (145) can be inserted, wherein the contacting slot (67) at least partially around the Receiving (145) for the pressing member (29) extends around, and wherein a depth direction (T) of the contacting slot (67) parallel to the insertion direction (E).

12. Arrangement (1) according to claim 1 1, wherein the contacting slot (67) of the receptacle (145) for the pressing member (29) by a in the connector (137) can be used

Sleeve (153) is delimited, which in the insertion direction (E) for the pressing member (29) is permeable.

13. Arrangement (1) according to claim 1 1 or 12, wherein between the connecting piece (137) and the outer wall (161) of the housing-like contact protection (5) a guide slot (169) is arranged concentrically around the connecting piece (137). extends and for receiving a housing part (171) of the Anpressadapters (3) is configured.

14. Arrangement (1) according to any one of claims 1 1 to 13, with a with the first conductor (9) connectable contacting element (97) which is complementary to the contacting slot (67) and by means of the pressing member (29) through the contacting slot (67). 67) is pressed against the connecting piece (137).

15. Arrangement (1) according to claim 14, wherein the contacting element (97) is sleeve-shaped and penetrated in the insertion direction (E) of the pressing member (29).