Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
  • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
  • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
  • H01R13/5812—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part the cable clamping being achieved by mounting the separate part on the housing of the coupling device
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
  • H01R13/46—Bases; Cases
  • H01R13/502—Bases; Cases composed of different pieces
  • H01R13/506—Bases; Cases composed of different pieces assembled by snap action of the parts
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
  • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
  • H01R13/42—Securing in a demountable manner
  • H01R13/436—Securing a plurality of contact members by one locking piece or operation
  • H01R13/4361—Insertion of locking piece perpendicular to direction of contact insertion
  • H01R13/4362—Insertion of locking piece perpendicular to direction of contact insertion comprising a temporary and a final locking position

Definitions

• the invention relates to an electrical plug connector with a housing which comprises an inlet for insertion of at least one cable arrangement in an insertion direction, and with a cable clamping device which is latchable to the housing and which is moveable into the inlet.
• Such plug connectors are known from EP 2 228 870 B1 , for example.
• the cable arrangements have at least one contact which is attached to the end of a cable. In the event of vibrations on the cable and/or on the plug connector, it is possible for these to be transferred up to the at least one contact. As a result, both the contact can be damaged and the electrical connection disrupted. In order to prevent this, the cable arrangement is clamped in the region of the cable. This brings about protection against vibration by the vibration being absorbed before it can act on the connection between the cable and the contact. In particular in surroundings in which an electrical plug connector is subjected to strong vibrations, the plug's lifespan and security of contact can be improved via a cable clamping device. In addition, relief of tension can be achieved through the clamping.
• the invention is therefore based on the object of simplifying the electrical plug connector and nevertheless guaranteeing the cable arrangement protection from vibrations.
• this object is achieved by a cable clamping device for directly clamping the at least one cable arrangement.
• the solution according to the invention can be further improved by way of the following configurations which are each advantageous and independent of one another.
• the cable clamping device can have a clip with two legs.
• the clips can be configured in particular in a U-shape.
• Clamping receptacles which are arranged next to one another and which are for a plurality of cable arrangements are situated at the opposing sides of the two legs. Precisely one cable arrangement is preferably allocated to
• the clip can be able to be inserted, in particular be able to be slid, into the inlet transverse to the insertion direction.
• the housing can form a receptacle for the clip, the clip being guided in a longitudinally displaceable manner in the receptacle in the direction of its legs.
• the clip When the clip is being slid into the housing, the clip preferably protrudes into the inlet, at least in sections. At their outsides, the legs can act as guides for the clip.
• the clamping receptacle for a cable arrangement can have a push-through opening and a clamping region arranged next to the push-through opening.
• the inner width of the push- through opening can in particular be larger than that of the clamping region.
• the clip can be latchable to the housing in a preliminary latching position, with the push-through opening of a clamping receptacle, in the preliminary latching position, being able to be aligned with a contact chamber of the housing, in which a contact of the cable arrangement is able to be received.
• the clip In the preliminary latching position, the clip preferably protrudes out of the housing so that it is immediately visible that the completed latching position required for protection against vibrations has not yet been achieved.
• the clip is able to be latched in a completed latching position.
• the cable arrangement is clamped.
• the clamping region can align with the contact chamber.
• the clip is preferably pushed further into the housing compared to a preliminary latching position, where this is present.
• the clip can in particular be elongated such that the legs are longer than a section connecting the legs.
• Such a configuration is sensible for example if the cable clamping device is configured at a narrow side of the housing in a manner able to be slid into the inlet.
• the clamping receptacle for one cable arrangement can have a serrated wall course with a section which runs flat and a section which runs steep.
• the clamping preferably takes place at the section which runs flat.
• the opposing clamping receptacles of the two legs can form between them a drop-shaped opening of which the flatter side is situated in the introduction direction of the clip.
• the drop shape of the opening can be advantageous in order to avoid the cable displacing.
• the cable arrangement can have a seal element which surrounds the cable, the cable clamping device clamping the cable in the region of the seal element.
• the seal element is situated between the cable and the cable clamping section.
• the compressibility of the seal is used to obtain a good clamping effect without squeezing the cable.
• the seal can have a hose section which extends away from the contacts and which can join onto a bellows-shaped section of the seal with at least a sealing ring which runs in the circumferential direction.
• the two legs of the clip can be movably connected to one another, for example via a thin material bridge, which in particular can be elastic.
• the material bridge can represent a spring. This configuration makes it possible to achieve a clamping effect not or not exclusively via the geometry of the clamping receptacle but rather through a movement of the legs towards one another.
• the material bridge connecting both legs can in particular be curved.
• a receptacle for the clip can narrow, continuously or in steps, in the introduction direction in order to move the legs towards one another when the clip is inserted.
• the clip can widen, continuously or in steps, counter to the introduction direction.
• the housing and/or the cable clamping device are each equipped with the cooperating deflection elements which, upon engagement with one another, move the legs toward one another.
• a deflection element can be, for example, a rising slope, a shoulder and/or a projection. For example, if a leg rises onto the rising slope, the shoulder and/or the projection of the housing, it is deflected in the direction of the inlet and thus of the cable arrangement. This is also the case if the deflection element is arranged on the clip.
• the legs are displaced parallel to one another by the deflection elements, preferably in the completed latching position, compared to a state prior to the completed latching position, for example in the preliminary latching position, if present in this embodiment.
• the deflection elements In order to relocate the legs in as parallel a manner as possible and thus obtain a uniform clamping effect over their entire length, at least two pairs of deflection elements should be provided, spaced apart from one another in the direction of movement of the clip.
• one pair of deflection elements can be assigned to one free end and the other pair can be assigned to the other end of this leg.
• deflection elements can be assigned to both legs of a clip.
• the deflection elements bring about a movement of the legs towards one another only at the end of the movement of the cable clamping device.
• this can be implemented, for example, in that the deflection elements extend over only one small part and at the end of the path of movement along which the clip is inserted into the housing.
• a deflection element in particular a rising incline, can extend over less than half of the cable's diameter along the path of movement of the cable clamping device.
• the clip In the clamp's fully slid-in state, when the cable arrangements are clamped by the cable clamping device, the clip is preferably supported at the housing walls which are opposite one another in the introduction direction and delimit the inlet, such that large clamping forces can be obtained.
• the cable clamping device or clamping receptacle can be equipped with at least one cable- squeezing rib projecting into the inlet, preferably two cable-squeezing ribs which are opposite one another, in order to increase the clamping effect and to strengthen the friction-locking connection between the cable arrangement and the cable clamping device through a form-fitting connection.
• the cable clamping device can also have at least one hinged-on clamping receptacle in the form of a clamping jaw preferably for a plurality of cable arrangements.
• the cable clamping device can have two hinged-on clamping receptacles situated opposite one another. The two opposing clamping jaws form the legs of a clip.
• the at least one hinged-on clamping jaw can be part of an insert which can be inserted in the housing's inlet and which can be latched there.
• the insert can be able to be introduced into the housing in or transverse to the insertion direction of the cable arrangement, and can in particular line the inlet.
• the insert can form a base on which the clamping receptacles are retained via film hinges, for example.
• the cable arrangement can be inserted through the insert into the housing.
• At least one foldable clamping receptacle can be equipped with a grip rail which protrudes outwards over the hinge in order to facilitate handling.
• the grip rail can be configured for the mounting of an outer cover.
• the latching of the at least one clamping receptacle in the housing or insert can be carried out through a laterally protruding clamping receptacle.
• the clamping receptacle can automatically latch in a central opening of the insert or of the housing upon folding.
• the inlet can be locked by the cable clamping device.
• Fig. 1 shows a first exemplary embodiment of an electrical plug connector according to the invention with a housing and a cable clamping device in a schematic perspective view;
• Fig. 2 shows the exemplary embodiment from Fig. 1 in a schematic perspective view, additionally with cable arrangements in a prefitting position;
• Fig. 3 shows the exemplary embodiment from Fig. 1 in a schematic perspective depiction of a fully fitted state
• Fig. 4 shows the exemplary embodiment of Fig. 1 in a schematic perspective sectional depiction of the prefitting position
• Fig. 5 shows the view from Fig. 4 in the fully fitted state
• Fig. 6 shows a second exemplary embodiment of an electrical plug connector according to the invention in a schematic perspective view before fitting
• Fig. 7 shows the exemplary embodiment from Fig. 6 in a schematic perspective view with fitted cable arrangements
• Fig. 8 shows the exemplary embodiment from Fig. 6 in a schematic perspective depiction of a fully fitted state
• Fig. 9 shows the exemplary embodiment from Fig. 6 in a schematic enlarged perspective depiction of the inlet
• Fig. 10 shows the exemplary embodiment of Fig. 6 in a schematic sectional depiction of a first position of the cable clamping device
• Fig. 1 1 shows the view from Fig. 10 in a second position of the cable clamping device
• Fig. 12 shows the exemplary embodiment from Fig. 10 in a schematic sectional depiction of a third position of the cable clamping device
• Fig. 13 shows a further exemplary embodiment of an electrical plug connector according to the invention in a schematic perspective depiction
• Fig. 14 shows the exemplary embodiment from Fig. 13 in a schematic perspective depiction with a closed cable clamping device
• Fig. 15 shows a further exemplary embodiment of an electrical plug connector according to the invention in a schematic perspective depiction before the fitting of the cable arrangements;
• Fig. 16 shows the exemplary embodiment from Fig. 15 in a schematic perspective depiction of a fully fitted state
• Fig. 17 shows a cable clamping device of the exemplary embodiment of Fig. 15 in a schematic perspective view of an opened state
• Fig. 18 shows the cable clamping device from Fig. 17 in a schematic perspective depiction of a closed state.
• FIG. 1 shows a housing 2 of the electrical plug connector which is equipped with an inlet 4 through which at least one cable arrangement, but preferably a plurality of cable arrangements 6, can be inserted into the interior 8 of the housing 2 in an insertion direction 10.
• Each cable arrangement 6 preferably has a contact 12 which is connected to the end of a cable 14.
• the cable arrangement 6 furthermore has a seal 16, which externally surrounds the cable 14 and serves to seal the cable 14 from the housing 2.
• a bellows-shaped section 18 equipped with one or more rib-shaped seal rings 20 is used for sealing.
• the seal 16 continues with a hose section 22 on the side of section 18 facing away from the contact 12.
• the electrical plug connector 1 further has a cable clamping device 24 which is preferably movable transverse to the insertion direction 10 along an introduction direction 26 into the housing 2, in particular the inlet 4.
• the cable clamping device 24 can in particular be able to be inserted into a narrow side 28 of the housing 2.
• the housing 2 can have a corresponding receptacle 30 for this purpose which extends through the two opposing side walls 32 at the narrow sides 28.
• the cable clamping device 24 can in particular be designed in the form of a clip 34 which is designed substantially in a U-shape.
• the clip 34 has two legs 36 which extend preferably parallel to one another and which in the introduced state are situated at two opposing sides 38 of the inlet 4 and delimit the inlet 4. As Fig.
• the two sides 38 can in particular be the two longitudinal sides of the inlet 4.
• Several clamping receptacles 42 are arranged next to one another between the opposing sides 40 of the legs 36, with each clamping receptacle 42 being assigned to a cable arrangement 6.
• Each clamping receptacle 42 has a push-through opening 44 and a clamping region 46 arranged beside the push-through opening 44.
• An inner width of the push-through opening 44 is in this case larger than that of the clamping region.
• the inner width of a push-through opening 44 can be sized such that the contacts 12 and the seals 16 of the cable arrangements 6 can be inserted into the housing 2 through the push-through opening 44 between the legs 36.
• the push-through opening 44 can be delimited by circular-arc sections of the legs 36.
• the inner width between the legs 36 in a clamping region 46 is, in contrast, preferably smaller than the outer diameter of the hose section 22.
• the clamping receptacle 42 can be formed by a cable-squeezing rib 48 which runs along the legs 36.
• the cable-squeezing rib 48 projects toward the respective opposing leg 36. It can be restricted to the clamping region 46 of a clamping receptacle 42.
• the leg 36 has a substantially N-shaped cross-section. Both legs 36 are preferably structured identically such that the clip 34 is symmetrical.
• the legs 36 guide the clip 34 during insertion into the housing 2.
• the legs 36 can have a thickening 52 of material at their ends, so that they are not so easily damaged.
• the clip 34 can be equipped with at least two, preferably two pairs of, latching elements 54 spaced apart from one another in the introduction direction 26 or in the direction of the legs 36.
• the housing 2 can be configured with one, or a pair of, complementary mating latching elements 56, for example at a collar 58 which surrounds the inlet 4.
• the inverse configuration is also possible.
• the electrical plug connector 1 may be made available with a housing 2 and cable clamping device 24 separate from one another.
• the cable clamping device 24 can be situated in a preliminary latching position 60 on the housing 2 as is shown in Fig. 2.
• a first pair of latching elements 54 and mating latching elements 56 are in engagement; the cable clamping device 24 is not yet fully introduced into the housing 2.
• the cable clamping device 24 preferably protrudes out of the housing 2 in the preliminary latching position 60.
• the push-through openings 44 of the cable clamping device 24 align, in the insertion direction 10, with corresponding receptacles (not shown) of the housing 2 for the contacts 12.
• the housing 2 can therefore be fitted with the cable arrangements 6.
• the clip 34 is fully pushed into the housing 2 so that the completed latching position 62 depicted in Fig. 3 is reached.
• the cable clamping device 24 is preferably arranged fully within the cubature of the housing 2.
• the clip 34 is likewise latched with the housing 2 in the completed latching position 62.
• the further latching elements 54 and mating latching elements 56 respectively are in engagement with one another.
• the inlet 4 is preferably closed by the clip 34.
• the clamping regions 46 With the pressing of the clip 34 into the housing 2, the clamping regions 46 now align with the (non-depicted) receptacles of the housing 2 for the contacts 12. Due to the smaller inner width, the clamping regions 46 squeeze the cable arrangements 6 or rather hose section 22 of the seal 16, and the cable 14.
• the preliminary latching position 60 is depicted in a section transverse to a longitudinal side of the inlet 4 through a cable arrangement 6. It should be recognised that the cable- squeezing rib 48 is not, or virtually not, present in the region of the push-through opening 44 in which the sectioned cable arrangement 6 of Fig. 4 is situated. No clamping or squeezing of the cable arrangement 6 takes place.
• the second exemplary embodiment differs from the first exemplary embodiment firstly through a differently configured cable clamping device 24, which however here also has the shape of a clip 34.
• the two legs 36 are connected to one another at their base by a thin material bridge 64.
• the material bridge 64 is curved and has the function of a leaf spring and/or a hinge.
• the material bridge 64 resiliency connects the two legs 36 to one another.
• a further difference from the preceding exemplary embodiment consists in the shape of the clamping receptacles 42 which, in the configuration from Figures 6 to 8, have a serrated or drop-shaped course:
• Each clamping receptacle 42 has a flatter section 66 and a steeper section 68.
• a cable-squeezing rib 48 can project toward the opposing leg 36.
• the cable-squeezing rib 48 is situated in a clamping receptacle 42 in the region of the otherwise largest inner width and preferably does not protrude over the smallest inner width.
• the cable-squeezing rib 48 can be situated centrally in the legs 36.
• both legs 36 are pushed towards one another as the insertion depth into the housing 2 increases or rather as the introduction of the clip 34 into the housing 2 increases.
• the receptacle 30 tapers preferably symmetrically in the introduction direction 26 and/or the clip 34 widens preferably symmetrically counter to the introduction direction 26.
• the tapering and/or widening can take place in several steps.
• both legs 36 are preferably deflected simultaneously relative to the housing 2. It is further advantageous if the legs 36 are moved parallel to one another during the introduction movement of the clip 34. In order to prevent that, during the introduction of the clip 34, the cable arrangements 6 are displaced from their fitting position through premature clamping, the movement of the legs towards one another only occurs in the last section of the introduction movement of the clip 34.
• the outer sides 50 of the legs 36 slide along corresponding inner surfaces 72 of the housing.
• the legs 36 are pushed apart by the material bridge 64 and against the inner surfaces 72. They are spaced apart from one another to such an extent that the clamping receptacles 42 can be pushed past the cable arrangements 6. This state is depicted in Fig. 10.
• the deflection elements 74 of the clip 34 and of the housing 2 come into engagement with one another.
• the deflection elements 74 which come into engagement with one another each have at least one rising incline 76 which runs transverse to the introduction direction 26 in an inclined manner.
• the receptacle 30 for the clip 34 has, at at least one location 78, a reduction of the inner width of the receptacle 30 transverse to the introduction direction 26 in the plane spanned by the two legs.
• the rising incline 76 can be arranged at the location 78, as Fig. 10 shows.
• the rising incline 76 can be situated on the clip 34.
• rising inclines 76 can also be situated on the clip 34 and on the housing 2.
• two locations 78 are provided spaced apart from one another in the introduction direction 26 which are assigned to corresponding ledges 80 of the clip 34 which are offset from one another by the same amount as the locations 78 along the direction of the legs 36.
• the length of the deflection elements 74 in the introduction direction 26 is preferably at most as great as half the diameter of a cable 14 or a seal 16, if a clamping takes place in the region of the seal. As a result, it is avoided that the clip 34 also moves the cable arrangements 6 when being inserted.
• the clip 34 is fully slid into the receptacle 30 or housing 2.
• the sectional plane from Fig. 12 is situated somewhat beneath the sectional plane from Fig. 1 1 .
• the clip 34 rests both on the free ends of the legs 36 and, at the other end of the legs 36, on the housing 2 and is spaced apart from the housing 2 in-between.
• the clip 34 therefore has a width 82 which increases in at least one step. The smaller width defines the inner width of the clamping receptacles 42 when sliding in; the difference to the larger width the degree of clamping, wherein it should be taken into account that at least in the depicted embodiment both legs 36 are deflected at the same time.
• the cable arrangements 6 are situated in the regions of the clamping receptacles 42 in which the opposing sides 40 of the legs 36 have the largest spacing from one another. Therefore while the legs are moved towards one another, the sides 40 simultaneously bounce back somewhat, in order to delay the clamping process.
• the cable-squeezing ribs 48 push into the cable arrangement 6 and strengthen the fixing thereof.
• FIGs. 13 and 14 a further exemplary embodiment of an electrical plug connector 1 with a cable clamping device 24 is shown.
• This electrical plug connector 1 is independent from the preceding configurations. Once again, only the differences from the preceding exemplary embodiments will be explored.
• the cable clamping device 24 is integrated into the housing 2.
• the housing 2 has at least one, preferably two clamping jaws 84 opposite one another with regard to the cable arrangements 6 which are arranged on the longitudinal sides 86 of the inlet 4.
• the clamping jaws 84 are provided with clamping receptacles 42 situated beside one another.
• the clamping receptacles 42 have a material strip 88 behind which there is situated a cavity 90 so that the material strip 88 can elastically deform when pressed onto the cable arrangement 6 either directly against the cable 14 or against the seal 16. Both clamping jaws 84 together form a clip 34.
• the cable arrangements 6 can be inserted into the housing 2. If the cable arrangements 6 are inserted fully, the clamping jaw 84 is pivoted into the inlet 4 and latched to the rest of the housing.
• Figs. 15 to 18 depict a variant of the embodiment of Figs. 13 and 14 in which the clamping jaws 84 are part of an insert 92 which is able to be inserted into the housing 2 and which is configured so as to be latchable there.
• the insert 92 is in particular inserted into the housing 2 in the insertion direction 10 and there forms a part of the inlet 4 which it can fully surround.
• the insert 92 can be inserted into a corresponding receptacle 94 of the housing before the cable arrangements 6 are fitted in the housing 2.
• the clamping jaws 84 and in particular the clamping receptacles 42 are spaced apart sufficiently far from one another to also enable the insertion of the contacts 12 of the cable arrangements 6. If the cable arrangements 6 are inserted fully, the clamping jaws 84 are swung in, as a result of which they automatically latch in the insert 92.
• the insert 92 is shown in detail in Figs. 17 and 18.
• the insert 92 has a base 96 which extends fully around inlet 4.
• the base 96 has an approximately rectangular to square surface area.
• the clamping jaws 84 are hinged by the hinges 98 spaced apart from the base 96.
• Two projections 100 of the base 96 extend up to the height of the clamping jaws 84 and are arranged at the two opposing sides transverse to the hinges 98.
• the projections 100 can be provided with latching elements 102 in order to latch the insert 92 in the housing 2.
• the projections 100 are equipped with further latching elements 106 for latching the clamping jaws 84. These latching elements 106 hold the clamping jaws 84 in the latched state.
• the latching elements 106 can in particular be configured in the form of a recess into which clamping receptacles 42 of the clamping jaws 84 latch.
• the clamping receptacles 42 can be flared somewhat at their outer ends.
• the clamping effect is increased by the sides of the clamping jaws 84 being additionally pushed outwards when the cable arrangement 6 is being clamped.
• This effect can be strengthened in that the side walls of the clamping jaws 84, at least in the region in which they overlap with projections 100 in the latched state, like the clamping receptacles 42 themselves, consist of strips of material 88 which are deformed in the course of the clamping process.
• At least one of the clamping jaws 84 can be provided with a protruding grip rail 108 which projects over the hinge 98 on the side facing away from the inlet 4.
• latching element for latching the insert inner side of the projection

Landscapes

• Details Of Connecting Devices For Male And Female Coupling (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=55524296

Family Applications (1)

Country Status (3)

Families Citing this family (6)

Family Cites Families (11)

• 2015
  • 2015-02-26 DE DE102015203489.5A patent/DE102015203489A1/de not_active Ceased
• 2016
  • 2016-02-26 EP EP16709307.9A patent/EP3262721A1/de not_active Withdrawn
  • 2016-02-26 WO PCT/EP2016/054107 patent/WO2016135303A1/en active Application Filing

Also Published As

Similar Documents

Legal Events