Housing arrangement for a module connector with pre-locked screw

Abstract

The invention relates to a touch-proof housing arrangement (1) for a module connector, comprising a housing (4) having a through-opening (12) extending through the housing (4) in a connection direction (16), and a screw (6) with a screw head (24) arranged in the through-opening, wherein the screw is locked in a pre-assembly position (96) in the through-opening. Such a housing arrangement is quick and easy to assemble and at the same time completely touch-proof.

Description

[0001] The present invention relates to a housing arrangement for a module connector.

[0002] Module connectors are used, for example, to electrically connect electrical modules, such as battery cells, especially vehicle traction batteries. To electrically connect the current-carrying components of the electrical modules, module connectors typically have a screw or other fastening means. Module connectors can also be used to electrically connect loads, fuses, or BDUs.

[0003] For assembly, one interface of the module connector is aligned relative to one of the electrical module. The module connector and the module are then screwed together. This alignment and assembly process can be quite time-consuming.

[0004] The present invention is therefore based on the object of providing a housing assembly for a module connector that is easy and quick to assemble. At the same time, the housing assembly should be completely protected against accidental contact.

[0005] This task is solved by a touch-protected housing arrangement for a module connector, with a housing having a through-opening extending through the housing in a connecting direction, and with a screw arranged in the through hole with a screw head, whereby the screw is locked in the through-hole in a pre-assembly position.

[0006] Before the module connector is mounted to an electrical module, the housing assembly is aligned relative to a housing of the electrical module to be connected. During alignment, the housing of the module user's housing assembly is moved relative to the housing of the electrical module to be connected until the longitudinal axes of the two housings are aligned and the screw can be pushed through all of the parts to be connected. For alignment, the screw of the housing assembly according to the invention is locked into the through-opening in a pre-assembly position. This secures the screw in the housing - in particular, it is captive - which simplifies assembly.

[0007] The above invention can be further improved by the following features, each of which is advantageous in itself and can be combined with one another as desired.

[0008] For example, it is advantageous if the screw or screw shaft does not protrude from the housing in the pre-assembly position. This prevents damage to other parts during final assembly of the module connector. Since the screw or screw shaft does not protrude from the housing, it cannot scratch other parts during screw alignment.

[0009] According to an advantageous embodiment, the screw head can have a screw flange and be designed to be touch-protected, and the screw head can be locked in the through-opening. The screw flange or the insulating material of the screw flange can be part of the touch protection of the housing arrangement, i.e., can be made of an electrically insulating material. By locking the screw head in the through-opening, the screw is captively fastened to the housing. In particular, this prevents the screw from moving along its longitudinal axis during assembly and hindering the alignment of the housing relative to a housing of an electrical module to be connected. A screw flange is advantageous in that it bridges a gap between the screw or the screw head and the through-opening, which has a larger diameter than the screw.This design is a structurally simple way of realizing a locking mechanism between the screw head and the through-hole.

[0010] According to a further aspect, the through-opening can be closed by the screw flange—in particular, protected against contact. This design prevents objects or human fingers from being inserted into the through-opening of the housing arrangement from the outside and thus from coming into contact with live components of the module connector. Such a housing arrangement consequently increases application safety. Furthermore, the ingress of contaminants, which could impair the functionality and safety of the module connector, is prevented.

[0011] According to another embodiment, the screw head can be located at one end of the through-hole in the pre-assembly position, and a screw shank can extend through the through-hole or be located in the through-hole. At the end of the through-hole, the screw is in the fully retracted position. The through-hole is thus completely closed at the top, preventing dirt from accumulating.

[0012] In particular, the screw flange can be located at one end of the through-hole, and the screw head can protrude from the through-hole. The housing arrangement according to this embodiment is particularly easy to install because the screw head is easily accessible to human hands or tools.

[0013] According to a further embodiment, the through-hole can have a locking projection that projects radially inward. Such a locking projection represents a structurally simple and thus cost-effective way of locking the screw in the through-hole.

[0014] According to a further advantageous embodiment, the at least one locking projection can be formed by a locking tongue that can be elastically deflected in the radial direction. As a result, the locking connection between the screw and the through-opening created by the locking tongue is designed to be releasable. This is advantageous when the screw needs to be transferred from the pre-assembly position to an assembly position. For this purpose, the screw can be pressed along its longitudinal axis into the through-opening of the housing arrangement. As a result, the at least one locking tongue is deflected outwards in the radial direction and the locking connection is released. After the locking connection is released, the locking tongues can also snap back inwards in the radial direction to their original position due to their elasticity. Such a design is reversible, so that the pre-assembly position of the screw can be re-established even after the locking connection has been released.

[0015] A base of the locking tongue, which can extend away from the base in the connection direction, can be connected to a wall of the through-opening. The connection can, in particular, be monolithic. Furthermore, a free end of the locking tongue can have a locking lug, and the locking tongue can be arranged in a recess in the wall.

[0016] According to a further aspect, the through-opening can have a surrounding wall with a pocket offset radially outward, in which locking projections are received. The surrounding wall or the through-opening can be substantially cylindrical. The pockets ensure that the locking projections cannot be touched from the outside by objects or hands and thus damaged. In particular, this prevents the locking projections from breaking off.

[0017] According to a further advantageous embodiment, the housing can have a collar that surrounds the through-opening and protrudes on the side of the housing facing away from the screw head, and wherein the screw does not protrude from the collar in the pre-assembly position. With the help of such a collar, the housing arrangement can be aligned relative to an electrical module and plugged together before the housing arrangement is screwed to the electrical module. In this case, the collar can, for example, be inserted into or placed onto a complementarily designed collar of the electrical module. Because the screw does not protrude from the collar of the housing arrangement in the pre-assembly position, an end of the screw facing away from the screw head is prevented from coming into contact with the mating contact of the electrical module during alignment. This prevents damage to the mating contact of the electrical module.

[0018] A contact ring can be accommodated in the housing, into which the screw at least extends. The screw can also extend through the contact ring or, in particular, not extend beyond the contact ring. The contact ring can preferably be accommodated in the through-hole or in the collar of the through-hole. The contact ring can be displaceable in the receptacle for a busbar, in particular to establish contact between the busbar and the contact ring.

[0019] According to a further advantageous embodiment, at least two locking projections can be provided, diametrically opposed with respect to the connection direction. If a screw, which is locked to the housing via the locking projections, is loaded along its longitudinal axis, the forces must be absorbed by the locking projections. A symmetrical arrangement of the locking projections relative to the connection direction ensures that the screw does not tilt under longitudinal load. This facilitates assembly because it prevents the screw thread from becoming jammed in the complementary internal thread of the electrical module. Furthermore, it ensures that the locking of the screw does not come loose on one or both sides.

[0020] According to a further aspect, the housing arrangement can have an outer housing in which the housing is movably accommodated in at least one displacement direction in a plane perpendicular to the connection direction. Due to the displaceability of the housing relative to the outer housing, the screw is also displaceable in the plane perpendicular to the connection direction. This allows for compensation of positional tolerances when connecting electrical modules. The electrical modules are thus connected without force, reducing the mechanical stress on the module connector and the electrical modules.

[0021] In the connection direction, the housing can be held essentially fixed or immovable in the outer housing.

[0022] According to a further embodiment, two diametrically opposed locking projections can be spaced apart from each other in the direction of displacement. In particular, the locking projections and the center of the through-opening can lie on a connecting line.

[0023] To move the housing along the displacement direction during alignment, the user typically applies a force near the screw head. This force can tilt the screw in the housing perpendicular to the displacement direction, making alignment more difficult. The special arrangement of the locking projections, whose connecting line extends along the displacement direction or perpendicular to the rotation axis, prevents the screw from tilting during movement.

[0024] According to a further embodiment, the outer housing can have a busbar receptacle in which a busbar can be accommodated substantially perpendicular to the connection direction, wherein the busbar receptacle extends through the through-opening. By providing a busbar receptacle, the housing arrangement can be used to connect electrical modules that have a busbar. Such a housing arrangement can therefore be used flexibly.

[0025] The housing arrangement can have a busbar, which can extend perpendicular to the connection direction through the through-hole. The busbar can have a through-hole through which the screw can protrude. The through-hole can be an elongated hole that can extend in the direction of displacement. The housing, together with the screw, can be displaceable relative to the busbar in the direction of displacement.

[0026] According to a further advantageous embodiment, the housing can have a collar through which the through-opening extends. In particular, the collar can form the end of the through-opening. The collar offers the advantage that a complementarily designed housing part of an electrical module to be connected can be aligned with the collar and plugged together with it. This facilitates assembly. Furthermore, the collar can surround current-carrying components of the housing arrangement, such as a contact ring, and thus contribute to contact protection.

[0027] Furthermore, the housing can have at least one flange section, which can extend along a plane extending substantially perpendicular to the connection direction or in the displacement direction. The flange section can surround the through-opening and / or run parallel to a plane extending perpendicular to the connection direction. The flange section can be longer in the displacement direction than transverse to the displacement direction. Furthermore, the collar can end at the flange section.

[0028] The flange sections can be flat, and the flange sections can each be displaceably supported on a housing section of the outer housing, each forming a displacement opening. In this case, a flange section closes the displacement opening at least partially, but preferably completely. In particular, the flange section closes the displacement opening in every position of the housing relative to the outer housing. In this way, the contact protection of the housing arrangement is ensured in every position of the housing relative to the outer housing.

[0029] Each flange section can close a sliding opening—particularly in any position of the housing relative to the outer housing in the sliding direction. The sliding opening can be located between the collar and the edge of the through opening.

[0030] The housing may also have two flanges spaced apart from each other in the connecting direction. The flanges may be connected to each other by the wall surrounding the through-opening.

[0031] According to a further advantageous embodiment, the screw head can be locked into the collar. By locking the screw head into the collar, the screw is connected to the collar in a motion-transmitting manner. This allows the screw to be aligned without having to move it relative to the housing.

[0032] The housing arrangement can have a second housing, which can be plugged together with the housing and / or the outer housing, for receiving a second busbar, in which a collar complementary to the through opening can be formed. A second contact ring can be accommodated in the complementary collar.

[0033] When the housing and / or the outer casing are plugged together and ready for operation, the screw can extend through the contact ring. In particular, the screw can also extend through the second busbar in this state.

[0034] When the housing and / or the outer housing and the second housing are plugged together in a ready-to-use state, the contact ring and the second contact ring can rest on one another in an electrically conductive manner. In particular, the busbar and the second busbar can be electrically connected to one another via the contact ring and the second contact ring. The screw can be part of a screw connection that generates a preload force that presses the busbar, the contact ring, the second contact ring, and the busbar together.

[0035] According to a further exemplary embodiment, the outer housing can have at least one displacement opening through which the collar of the housing extends, and the displacement opening can be an elongated hole whose longitudinal direction extends in the displacement direction. The provision of a displacement opening in the outer housing represents an advantageous structural configuration to enable the housing to be displaced relative to the outer housing. Since the screw can be connected to the housing in a movement-transmitting manner, the screw can also be displaced relative to the outer housing. In this way, positional tolerances of two electrical modules to be connected can be compensated for. The design of the displacement opening as an elongated hole limits the mobility of the housing and thus of the screw to the longitudinal direction of the elongated hole.

[0036] The outer housing can preferably also have two sliding openings spaced apart from one another in the sliding direction, through each of which a collar of the housing extends in the sliding direction.

[0037] The invention is explained in more detail below using exemplary embodiments with reference to the accompanying figures. Individual features present in the following exemplary embodiment may be omitted if, according to the above embodiments, the technical effect associated with this feature is not important. Conversely, a feature described above but not present in a following exemplary embodiment may be added to the exemplary embodiment if the technical effect associated with this feature is important for a specific application.

[0038] In the following, the same reference numerals are used for elements that correspond to one another in terms of structure and / or function.

[0039] They show: Fig. 1 a schematic perspective view of the contact arrangement according to a possible embodiment; Fig. 2 a schematic sectional view of the contact arrangement in the pre-assembly position according to a possible embodiment; Fig. 3 a schematic perspective detailed view of the locking projections according to a possible embodiment; Fig. 4 a schematic sectional view of the contact arrangement and the second contact arrangement during alignment according to another possible embodiment. Fig. 5 a schematic perspective view of the second contact arrangement according to another possible embodiment.

[0040] First, the structure and function of the housing assembly are described with reference to Fig. 1 to Fig. 4. The assembly of the housing assembly is then described with reference to Fig. 4 and Fig. 5 described.

[0041] The housing assembly 1 comprises an outer housing 2, a housing 4, a screw 6, a contact ring 8 and a busbar 10.

[0042] The housing 4 has a through-opening 12, the longitudinal axis 14 of which extends along a connecting direction 16 through the housing 4. The through-opening 12 is surrounded by a substantially cylindrical wall 18, which is arranged concentrically around the connecting direction 16 or around a longitudinal axis 14 of the through-opening 12. A lower part 20 of the housing 4 has a collar 22, which protrudes on the side 26 of the housing 4 facing away from a screw head 24. In particular, the through-opening 12 extends through the collar 22, and the collar 22 forms one end 28 of the through-opening 12. The collar 22 concentrically encloses the substantially cylindrical contact ring 8.

[0043] The housing 4 also has at least one flange section 30 that protrudes perpendicularly from the housing 4. In the illustrated embodiment, both an upper part 32 of the housing 4 and the collar 22 of the lower part 20 of the housing 4 have a flange section 30. The flange sections 30 run parallel to one another and to a displacement plane 34 extending perpendicular to the connecting direction 16. The flange sections 30 are essentially flat and designed to each bear displaceably against a section 36 of the outer housing 2. In the illustrated embodiment, the flange sections 30 are longer in a displacement direction 38 than transversely to the displacement direction 38. The displacement direction 38 extends along the displacement plane 34.

[0044] As from Fig. 3 and Fig. As can be clearly seen in Figure 4, the upper part 32 of the housing 4 has locking projections 40, which are opposite one another relative to the longitudinal axis 14 of the through-opening 12 or relative to the connecting direction 16. A connecting line 42 between the locking projections 40 extends along the displacement direction 38. The locking projections 40 are designed to form a locking connection 44 with the screw 6 extending through the through-opening 12.

[0045] In Fig. In the embodiment shown in Figure 3, the locking projections 40 are designed as locking tongues 46 that extend from a base 48 to a free end 50. The bases 48 of the locking tongues 46 are connected to the upper part 32 of the housing 4 or to the wall 18, respectively, wherein the connection is preferably monolithic. The locking tongues 46 are elastically deflectable in a radial direction 52 that extends perpendicular to the connection direction 16. The locking tongues 46 have a locking lug 54 at their free ends. The locking lugs 54 are designed to bear against a screw flange 56 of the screw 6.

[0046] The upper part 32 of the housing 4 has pockets 58 in which the locking projections 40 or the locking tongues 46 are received. The pockets 58 represent bulges 60 that extend radially outward 60 and along the connecting direction 16 or along a longitudinal axis 62 of the screw 6. The pockets 58 can also be formed by the wall 18 of the through-opening 12. The pockets 58 are provided to protect the locking projections 40 or the locking tongues 46 from contact by objects or fingers and thus prevent damage.

[0047] The housing 4 is at least partially surrounded by the outer housing 2. The outer housing 2 has a busbar receptacle 64 in which the busbar 10 is accommodated perpendicular to the connection direction 16. The busbar 10 has a through-opening 66, which in the illustrated embodiment represents an elongated hole 68.

[0048] The outer housing 2 has sliding openings 70 that are opposite one another with respect to the sliding plane 34 and spaced apart from one another in the sliding direction 38. A sliding opening 70 can be configured as an elongated hole 72, the longitudinal direction 74 of which extends along the sliding direction 38. The upper part 32 of the housing 4 extends along the connecting direction 16 through the sliding opening 76 of an upper outer housing part 78, and the collar 22 of the lower part 20 of the housing 4 extends along the connecting direction 16 through the sliding opening 80 of a lower outer housing part 82.

[0049] The sliding opening 76 of the upper outer housing part 78 has, with respect to the connecting direction 16, opposite recesses 84, which are curved complementarily to the pockets 58 of the upper part 32 of the housing 4. In this way, the pockets 58 of the housing 4 can be received by the recesses 84 of the upper outer housing part 78 when the housing 4 is displaced along the displacement direction 38.

[0050] Regardless of how the housing 4 is displaced relative to the outer housing 2 along the displacement plane 34 or the displacement direction 38, both displacement openings 76, 80 are closed in a touch-proof manner. In particular, the displacement opening 76 of the upper outer housing part 78 is closed by the screw flange 56 and the flange section 30 of the upper part 32 of the housing 4.

[0051] In order to connect the housing arrangement 1 with a second housing arrangement 86 (see Fig. 4), the screw 6 is provided. The screw 6 is arranged in the through-opening 12 such that the longitudinal axis 62 of the screw 6 extends along the longitudinal axis 14 of the through-opening 12 or along the connecting direction 16. The screw 6 has a screw shaft 88, the screw head 24, and the screw flange 56. The screw shaft 88 provides an external thread 90, which is designed for engagement with a complementary internal thread 91 of the second housing arrangement 86.

[0052] The screw head 24 protrudes from the housing 4 in the connection direction 16 and has a cap 92, which is preferably made of an insulating material. The screw flange 56 is arranged at an end 94 of the screw head 24 facing the external thread 90 and extends rotationally symmetrically around the longitudinal axis 62 of the screw 6. The screw flange 56 is part of the contact protection and is preferably made of an insulating material.

[0053] In a pre-assembly position 96, the screw 6 is locked in the through-opening 12, so that the screw 6 is held in an upper position 98. In the upper position 98, the screw head 24 is spaced as far as possible from the end 100 of the collar 22 of the lower part 20 of the housing 4 facing away from the screw head 24. In the pre-assembly position 96, an end 102 of the screw 6 facing away from the screw head 24 does not protrude in the connection direction 16 at the end 100 of the collar 22 facing away from the screw head 24.

[0054] The locking mechanism 44 of the screw 6 in the through hole 12 is in Fig. 4 is realized in that an underside 104 of the screw flange 56 rests on the free ends 50 of the locking projections 40 pointing inwards 105 in the radial direction.

[0055] In particular, the underside 104 of the screw flange 56 can rest on the locking lugs 54 which are arranged on the free ends 50 of the locking tongues 46.

[0056] The screw 6 is mounted so as to be rotatable relative to the housing 4, the outer housing 2, the busbar 10, and the contact ring 8 of the housing arrangement 1 about the longitudinal axis 62 of the screw 6. In addition, the screw 6 is connected to the housing 4 in a motion-transmitting manner, so that the housing 4, together with the screw 6, can be moved relative to the outer housing 2 in the displacement direction 38. If the housing arrangement 1 has a busbar 10, the housing 4, together with the screw 6, can also be moved relative to the busbar 10 in the displacement direction 38. In particular, the housing 4, together with the screw 6, can be moved relative to the outer housing 2 along the displacement plane 34. If the housing arrangement 1 has a busbar 10 with an elongated hole 68, the housing 4, together with the screw 6, can only be moved along a longitudinal axis 106 of the elongated hole 68.

[0057] The following is with reference to Fig. 4 and Fig.5 describes how the housing assembly 1 is assembled with a second housing assembly 86.

[0058] The second housing arrangement 86 has a housing 108 with a collar 110, which is designed to complement the through-opening 12 of the housing arrangement 1. The collar 110 of the second housing arrangement 86 is configured such that it can be plugged together with the collar 22 of the housing arrangement 1. A contact ring 112 is received in the collar 110 of the housing of the second housing arrangement 86. The contact ring 112 of the second housing arrangement 86 is intended to make electrically conductive contact with the contact ring 8 of the housing arrangement 1.

[0059] At the beginning of assembly, the screw 6 of the housing arrangement 1 is in the pre-assembly position 96. In the pre-assembly position 96, the screw 6 is locked in the through-opening 12. The screw 6 is held in the upper position 98 such that the end 102 of the screw 6 facing away from the screw head 24 does not protrude from the end 100 of the collar 22 of the housing arrangement 1 facing away from the screw head 24 along the connection direction 16. In this way, the end 102 of the screw 6 facing away from the screw head 24 is prevented from coming into contact with the contact ring 112 or the collar 110 of the second housing arrangement 86 before the housing arrangement 1 is aligned relative to the second housing arrangement 86 or before the housing arrangement 1 is plugged together with the second housing arrangement 86. This prevents damage to the contact ring 112 or the collar 110 of the second housing arrangement 86.

[0060] In the first assembly step, the housing assembly 1 is aligned relative to the second housing assembly 86. For this purpose, the collar 22 of the housing assembly 1 is displaced along the displacement plane 34 or along the displacement direction 38 until a longitudinal axis 114 of the collar 22 of the housing assembly 1 extends along a longitudinal axis 116 of the collar 110 of the second housing assembly 86.

[0061] If the collar 22 of the housing assembly 1 is aligned relative to the collar 110 of the second housing assembly 86, the screw 6 of the housing assembly 1 is also aligned accordingly. Thus, the longitudinal axis 62 of the screw 6 extends along the longitudinal axis 114 of the collar 22 of the housing assembly 1 and along the longitudinal axis 116 of the collar 110 of the second housing assembly 86.

[0062] The screw 6 is therefore correctly aligned together with the collar 22 of the housing arrangement 1 and the collar 110 of the second housing arrangement 86 because all movable parts of the housing arrangement 1 are connected to one another in a movement-transmitting manner. If the collar 22 of the housing arrangement 1 is moved along the displacement direction 38 or along the displacement plane 34 during alignment, the movement of the collar 22 continues on to the contact ring 8 of the housing arrangement 1 because the contact ring 8 is inserted into the collar 22 of the housing arrangement 1. The contact ring 8 subsequently transfers the movement along the displacement direction 38 or along the displacement plane 34 to the screw shaft 88 because the latter extends at least partially through the contact ring 8 in the connecting direction 16. The movement of the screw 6 along the displacement direction 38 oralong the displacement plane 34 is in turn transferred to the upper part 32 of the housing 4, whereby the latter also moves along the displacement direction 38 or along the displacement plane 34.

[0063] Once the alignment is complete, the housing assembly 1 and the second housing assembly 86 can be plugged together along the connection direction 16. In this case, the collar 22 of the first housing assembly 1 is slipped over the collar 110 of the second housing assembly 86, or the collar 22 of the first housing assembly 1 is plugged into the collar 110 of the second housing assembly 86.

[0064] Once the housing assembly 1 and the second housing assembly 86 are aligned and plugged together, there is no longer any risk that an end 102 of the screw 6 facing away from the screw head 24 could damage the contact ring 112 or the collar 110 of the second housing assembly 86. The pre-assembly position 96 of the screw 6 can therefore be removed.

[0065] To do this, the locking mechanism 44 of the screw 6 in the through-opening 12 is released. The screw 6 is pressed along its longitudinal axis 62 or along the connecting direction 16 in the direction of the second housing arrangement 86, whereby the locking tongues 46 are elastically deflected outward 60 in the radial direction by the underside 104 of the screw flange 56. In particular, the free ends 50 of the locking tongues 46 are elastically deflected outward 60 in the radial direction. As soon as the screw flange 56 has overcome the free ends 50 of the locking tongues 46 or the locking lugs 54 located on the free ends 50 of the locking tongues 46 along the connecting direction 16, the screw flange 56 is no longer held by the locking tongues 46. As a result, the locking mechanism 44 of the screw 6 in the through-opening 12 is released, whereby the screw 6 slides into the through-opening 12 along the connection direction 16 and in the direction of the second housing arrangement 86.At the same time, the locking tongues 46, which are elastically deflected outward in the radial direction 60, snap back inward in the radial direction 105. This prevents the screw 6 from falling out of the housing assembly 1.

[0066] After mating, the contact ring 8 of the housing assembly 1 and the contact ring 112 of the second housing assembly 86 rest on one another in an electrically conductive manner. In particular, the busbar 10 of the housing assembly 1 can be electrically connected to a busbar of the second housing assembly 86. The screw 6 extends through the contact ring 8 of the housing assembly and the contact ring 112 of the second housing assembly 86. Furthermore, the screw 6 can also extend through the busbar (not shown) of the second housing assembly 86.

[0067] In a final assembly step, screw 6 is fastened. The screw 6 generates a preload force that compresses the busbar 10 and the contact ring 8 of the housing assembly 1, as well as the busbar 118 and the contact ring 112 of the second housing assembly 86, along the longitudinal axis 62 of the screw 6. In this way, the current-carrying components of the housing assembly 1 and the second housing assembly 86 are electrically connected to one another, and assembly is complete.

[0068] In this state, all current-carrying components of the housing assembly 1 and the second housing assembly 86 are surrounded by non-conductive components without any gaps. This ensures complete contact protection. In particular, contact with current-carrying components by a human finger or objects is prevented. Reference symbol 1 Housing arrangement 2 outer casings 4 housings 6 screw 8 Contact ring 10 Busbar 12 passage opening 14 Longitudinal axis of the passage opening 16 Connection direction 18 Conversion 20 Lower part of the housing 22 collars 24 screw head 26 Side of the housing facing away from the screw head 28 End of the passage opening 30 flange section 32 upper part of the housing 34 Shift plane 36 Section of the outer casing 38 Shift direction 40 locking projection 42 connecting line 44 locking 46 locking tongue 48 feet 50 Free End 52 Radial direction 54 locking lug 56 screw flange 58 bag 60 Radial direction outwards 62 Longitudinal axis of the screw 64 busbar holder 66 Through opening of the busbar 68 Long hole of the busbar 70 sliding opening 72 Slotted hole of the sliding opening 74 Longitudinal direction of the slot of the sliding opening 76 Sliding opening of the upper outer housing part 78 Upper outer housing part 80 Sliding opening of the lower outer housing part 82 Lower outer housing part 84 recesses 86 Second housing arrangement 88 screw shaft 90 external thread 91 Internal thread of the second housing arrangement 92 cap 94 End of the screw head facing the external thread 96 Pre-assembly position 98 Upper Position 100 end of the collar facing away from the screw head 102 end of the screw facing away from the screw head 104 Bottom of the screw flange 105 Radial direction inwards 106 Longitudinal axis of the slot 108 Housing of the second housing arrangement 110 Collar of the second housing arrangement 112 Contact ring of the second housing arrangement 114 Longitudinal axis of the collar of the housing assembly 116 Longitudinal axis of the collar of the second housing arrangement

Claims

[1] Touch-protected housing arrangement (1) for a module connector, with a housing (4) which has a through-opening (12) extending through the housing (4) in a connecting direction (16), and with a screw (6) arranged in the through opening (12) with a screw head (24), wherein the screw (6) is locked in the through opening (12) in a pre-assembly position (96). [2] Contact-protected housing arrangement (1) according to claim 1, wherein the screw head (24) has a screw flange (56) and is designed to be protected against contact, and wherein the screw head (24) is locked in the through-opening (12). [3] Contact-protected housing arrangement (1) according to claim 2, wherein the through opening (12) is closed by the screw flange (56). [4] Contact-protected housing arrangement (1) according to one of claims 1 to 3, wherein in the pre-assembly position (96) the screw head (24) is located at one end (28) of the through-opening (12) and a screw shaft (88) of the screw (6) extends through the through-opening (12). [5] Contact-protected housing arrangement (1) according to one of claims 1 to 4, wherein the through-opening (12) has a locking projection (40) projecting inwards (105) in the radial direction. [6] Contact-protected housing arrangement (1) according to one of claims 1 to 5, wherein the at least one locking projection (40) is formed by a locking tongue (46) which can be elastically deflected in the radial direction (52). [7] Contact-protected housing arrangement (1) according to one of claims 1 to 6, wherein the through-opening (12) has a wall (18) which has a pocket (58) offset radially outwards (60) in which a locking projection (40) is received. [8] Contact-protected housing arrangement (1) according to one of claims 1 to 7, wherein the housing (4) has a collar (22) which surrounds the through-opening (12) and projects on the side of the housing (4) facing away from the screw head (24), and wherein in the pre-assembly position (96) the screw (6) does not protrude from the collar (22). [9] Contact-protected housing arrangement (1) according to one of claims 1 to 8, wherein at least two locking projections (40) are provided which are diametrically opposite one another with respect to the connecting direction (16). [10] Contact-protected housing arrangement (1) according to one of claims 1 to 9, with an outer housing (2) in which the housing (4) is displaceably received in at least one displacement direction (38) lying in a plane (34) perpendicular to the connecting direction (16). [11] Contact-protected housing arrangement (1) according to claims 9 and 10, wherein two diametrically opposed locking projections (40) are spaced apart from one another in the displacement direction (38). [12] Contact-protected housing arrangement (1) according to 10 or 11, wherein the outer housing (2) has a busbar receptacle (64) in which a busbar (10) can be received substantially perpendicular to the connection direction (16), wherein the busbar receptacle (64) passes through the through opening (12). [13] Contact-protected housing arrangement (1) according to one of claims 1 to 12, wherein the housing (4) has a collar (22) through which the through opening (12) extends. [14] Contact-protected housing arrangement (1) according to claim 13, wherein the screw head (24) is locked in the collar (22). [15] Contact-protected housing arrangement (1) according to one of claims 10 to 14, wherein the outer housing (2) has at least one sliding opening (70, 76, 80) through which the collar (22) of the housing (4) extends, and wherein the displacement opening (70, 76, 80) is an elongated hole (72) whose longitudinal direction (74) extends in the displacement direction (38).

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