FR2608326A1 - INSULATED DISPLACEMENT CONNECTOR FOR SINGLE-CABLE CABLE - Google Patents

Abstract

THE INVENTION CONCERNS A CONNECTOR BY DISPLACING INSULATION FOR SINGLE-CORDED CABLE. THE CONNECTOR INCLUDES A BODY OF ELEMENTARY CONNECTOR 1 INCLUDING TWO SIDE WALLS 10, 11 PARALLETS DELIMING A HOUSING 12 AND A CONTACT PART 2 WITH TWO BRANCHES 20, 21 HAVING A CIRCLE ARC PART 22 CENTERED IN RELATION TO AN ORTHOGONAL DIRECTION AT ELEMENTARY CONNECTOR BODY 1. IT IS ALSO IN THE FORM OF A CONNECTION LEVER 3 ROTATING IN HOUSING 12 BETWEEN TWO PARALLEL SIDE WALLS, LEVER 3 INCLUDING A CIRCLE ARC SLOT 30 LIKELY TO BE ENGAGED OR DISCHARGED FROM THE PART IN THE ARC OF A CIRCLE 22 OF THE CONTACT PART DURING THE ROTATIONAL MOVEMENT AND A BLOCK HOLE 31 PUTTING THE SLOT IN COMMUNICATION WITH THE EXTERIOR. LEVER 3 ALLOWS IN THE CLOSED POSITION THE CABLE C BETWEEN THE TWO BRANCHES 20, 21 OF THE CONTACT PART TO MAKE AN ELECTRICAL CONTACT BY MOVING INSULATION. APPLICATION TO THE REALIZATION OF SINGLE-CONDUCTOR OR MULTI-CONDUCTOR CONNECTORS OR TO THE REALIZATION OF HIGH ISOLATION TERMINALS IN THE HIGH CURRENT TECHNOLOGY.

Description

The invention relates to a connector

  by moving insulation for at least one single cable

  conductor, the connector having a high degree of insulation.

  Single-conductor cable insulation displacement connectors are widely known and

  in the art. They comprise,

  connector body and at least one motor lever.

  bile in rotation, relative to the connector body, and provided with a connection hole in which the cable

  is introduced in the open position of the lever.

  The connection port passes through a fork-shaped electrical contact piece,

  and the cable to be connected having been introduced into the ori-

  this connection through the fork-shaped contact piece, the closure of the lever causes the cable to be driven between the branches of the fork-shaped contact piece, thus making electrical contact with the fork-shaped contact piece;

insulation displacement.

  Such connectors, presented for example

  in the form of a serial connector between a wire driver

  and a starting driver through the application for

  German patent 29 02 536 or as a terminal board, in the patent application DE 32 26 118, if they allow the

  making such electrical contacts of good quality

  However, they do not allow the realization of

  connection of a plurality of single conductors, by association of these connectors, in a dimension transverse to the direction of introduction of the single or single conductors, both compact and having a high

  degree of electrical insulation between conductors. Indeed-

  fet, in one and the other type of aforementioned connector,

  the connector body, of complex structure, presents

  either a completely open side face, the case of the connector described in the patent application DE 29 02 536, or an effective lack of insulation wall between connectors, these being, in the case of the connector described in the patent application DE 32 26128, described

in the form of a terminal board.

  The present invention aims to remedy

  to overcome the aforementioned disadvantages of the connectors of the prior art by the implementation of a connector by displacement of insulation, for single-conductor cable,

  this connector has a high degree of isolation.

  Another object of the present invention is the implementation of a single-conductor cable insulation displacement connector having a connector body providing a high degree of insulation.

although of simple structure.

  Another object of the present invention is the implementation of a connector by displacement

  of insulation comprising a structural connector body

  simple, but with a trans-

  dirty, in a direction transversal to the direction

  introduction of the driver to be connected, particularly

  reduced so as to be able to constitute by association

  of a plurality of associated connectors according to their transverse dimension, terminal blocks that can be produced in a simple manner and that have a character of great compactness for a high degree of electrical insulation.

  between conductors and live parts.

  Another object of the present invention

  is finally the implementation of a connector by moving

  insulation for single-core cable whose

  connector body of simple structure is siscepti-

  It can be obtained by molding at low cost.

  The insulation displacement connector for single-core cable object of the invention is

  remarkable in that it includes at least one connec-

  an elementary body formed, on the one hand, of a connecting body

  unit comprising two parallel sidewalls

  leles delimiting a housing and a contact piece having two branches inserted into the housing and having an arcuate portion centered in position with respect to a direction (A) orthogonal to the elementary connector body, and, on the other hand, a connection lever rotatably mounted in the housing between the two parallel side walls, with respect to said orthogonal direction, said lever having a slot in a circular arc that can be engaged or disengaged from the arcuate part. circle of the contact piece during the rotational movement and a blind hole communicating said slot with the outside, said lever after insertion of a cable into said blind hole, allowing in the closed position the jamming of said cable between the two branches of the contact piece for making contact

  electric by displacement of insulation.

  The high insulation insulating displacement connector for single conductor cable, object of the invention, finds application to the realization of electrical circuits in the field of electrical construction, industrial electronics and in the

technique called strong currents.

  It will be better understood when reading

  the description and the observation of the drawings below

  o the same references represent the same elements

  and in which: - Figure la represents a perspective view of the connector by displacement of insulator for single-conductor cable according to the object of the present invention, - Figure lb shows a front view of a section according to the sectional plane AA of the figure

  the longitudinal plane of symmetry of the connector

  shown in FIG. 1c, FIG. 1c shows, in an exploded view, the various essential elements of the connector which is the subject of the invention, as represented in FIG.

  FIG. 1d represents an identical view

  than that of FIG. 1b, the connection lever being open and a cable to be connected being introduced into the connection port in order to make the connection by displacement of insulation,

  FIG. 1 represents an identical view

  than that of Figure ld, the connection lever

  being closed, in the presence of the cable to be connected, the con-

nexion being thus carried out.

  FIG. 2a represents a view in

  According to a variant embodiment of the connector object of the present invention, - Figure 2b shows a front view of a partial section along a cutting plane AA of Figure 2a, the elementary connector body being shown in section and the connection lever being shown in a side view,

2608326 '

  FIG. 3a represents a view in

  perspective of another variant of the connec-

  FIG. 3b shows a front view of a partial section along a sectional plane AA of FIG. 3a, the elementary connector body being shown in section and the connection lever being shown in view of FIG. lateral,

  FIG. 4 represents a terminal block comprising

  both a plurality of connectors according to the invention

  adjacent according to their transverse dimension.

  In this description, the connection

  tor, by displacement of insulation, object of the invention,

  will be described successively according to three modes of

  different embodiments, each embodiment being

  intended to realize the connection by displacement of iso-

  lant of a single conductor cable. By single-core cable

  The term "electric" means any single-strand or multi-strand electric cable. The insulation displacement connector for single-core cable object of the invention will first be described in connection with Figures la and lb. In accordance with the above figures,

  the connector by displacement of insulation object of the in-

  vention, comprises at least one elementary connector formed of an elementary connector body denoted 1. The elementary connector body 1 comprises two walls

  lateral 10, 11, parallel delimiting a housing 12.

  The elementary connector body 1 also comprises a contact piece 2 with two branches 20, 21, inserted into

  the housing 12 and having a bow portion of cer-

  cle 22, centered in position relative to a

  orthogonal direction e to the connector body

  1. In Figure lb, it will be noted that only

  the branch 20 of the contact piece 2 has been represented

  due to the sectional representation along the sectional plane AA of Figure la, this same figure lb. The elementary connector is also

  formed by a connection lever rated 3 rotatably mounted

  in the housing 12, between the two side walls

  parallel lines 10 and 11, with respect to the orthogonal direction i. The lever 3 comprises an arcuate slot 30 noted, capable of being engaged or disengaged from the arcuate portion 22 of the contact piece during the rotational movement of the lever 3, and a blind hole 31. cylindrical or of variable cross-section

  communicating said slot with the outside. accordance

  the embodiment of the connector which is the subject of the invention

  shown in FIGS. 1a and 1b, the blind hole 31 makes it possible to put in communication the slot 30 formed in

  the connection lever 3 with the housing 12.

  Other details of the realization of

  constituent elements of the connector object of the in-

  vention as shown in Figures la and lb will be

  described in connection with Figures lb and lc.

  According to an advantageous aspect of the connector object of the invention, represented in FIGS. 1a, 1b, 1c,

  the connection lever 3 is rotatably mounted by means of

  intermediate of a substantially cylindrical shoulder 32 noted, which articulation form with a housing

  concave 13, formed in the body of the electrical connector

  1. As will be noted in particular in FIG. 1c, the concave housing 13 communicates directly with

with housing 12.

  According to another particular characteristic

  advantageously of the connector object of the invention

  as shown in FIGS. 1a, 1b, 1c, the box

  concave 13 comprises two circular sectors noted 130, 131 in Figure lc. Circular sectors

  mentioned above form a stop at the opening of the lever 3.

  The connection lever 3 has two circumferential grooves

  culars thus represented in FIG.

  which are referenced 33 and 34 on the

  1c, these grooves being slidably mounted on

  circular sectors 130, 131. As it appears

  1b, the cylindrical shoulder 32, the concave housing 13, the circular sectors 130, 131 and the grooves 33, 34 are centered on the

  orthogonal direction to the body of the elemen-

  silenced, direction noted as an axis of rotation.

  In Figure 1c, there is also shown

  the connecting piece 2, the latter being provided with its two branches 20 and 21 forming the arcuate portion 22. The portion of the connecting piece 2

  opposed to the arcuate part 22 forming the former

  the end of connection piece 2, is advantageous

  equipped with a connection zone 200, which can be connected to a departure or arrival conductor by any suitable means for this purpose. In addition, the contact piece 2 is provided with a lug 201, which advantageously allows the insertion of the contact piece 2

  in the elementary connector body 1 by snap

  ging. In order to mount the connector, object of the invention, as shown in Figures la, lb, lc, it is advantageous, first of all to engage the connecting piece 2 at the arcuate portion 22 of the latter in the slot 30 of the connection lever 33, then to engage the contact piece, the connection lever 3 being held integral therewith, in the housing provided in the elementary connector body 1 to insert the room

  contact 2 therein by latching through

  In the course of the operation, of course, the cylindrical shoulder 32 is brought into abutment in the concave housing 13, the arcuate portion 22, the cylindrical shoulder 32, and the concave housing. 13 being then automatically centered on the orthogonal direction to the body of

  elementary connector 1 and thus forming articula-

  for rotating the lever. Well understood

  the cohesion of the assembly is ensured on the one hand by the circular segments 130, 131, and by the contact piece 2 itself held by the pin 201,

  integral with the elementary connector body 1. The

  ticulation formed by the cylindrical shoulder 32 and the concave housing 13 can then play freely to allow the operation of the connection lever 3, to achieve the connection of the cable, as it will be

  described below with the. figures ld and the.

  In accordance with the aforementioned figure 1d,

  the lever 3 is first brought into the position of

  verture, the connection port 31 being then degassed

  and being placed substantially above the

  The connecting cable C can then be introduced into the connection port 31, the cable C being not stripped. The connection lever 3 and the cable C held inside the connection port 31 can then be folded to bring the connection lever 3 into the closed position as shown in Figure 1c, the cable to be connected C being then engaged in the interval formed by the two branches 20, 21 of the contact piece 2. The aforementioned range is of course adapted to allow the

  during the operation of the connection lever 3 of

  connect the connection by displacement of insulation, the central core of the conductor C to be connected then being set

  in contact with the branches 20 and 21 to form

  electrical tact by displacement of insulation.

  According to an advantageous characteristic of the

  insulation displacement connector for single cable

  conductor shown in Figures la to le, circular sectors 130, 131 and co-operating grooves 33 and

  34 arranged on the connection lever 3, can

  tagently be conformed to oppose the extraction

  lever 3, out of the housing 12. Thus, the angle of

  sectors 130, 131 with respect to the direction

  horizontally corresponding to the longitudinal direction

  nale of the connector body, can advantageously be taken equal to 90, as shown in Figures lb, ld and the particular. Likewise, the angle of opening of the grooves, or even more precisely the complement of the angle of opening of the grooves with respect to this

  same direction, can be understood advantageously

  O and 45, this angle being chosen so that in the open position of the connection lever 3 as shown in Figure 1d, for a completely disengaged position of the connection port 31, the arcuate portion 22 of the connecting piece 2, however, remains engaged for a sufficient length

  in the slot 30 of the connection lever 3 to prevent

  expensive dislocation of the assembly and thus oppose

  when the lever 3 is removed from the housing 12, the armature

  ticulation around the axis E being completely locked.

  It will of course be noted that in the particularly advantageous embodiment of the connector by displacement of insulation for single-conductor cable

  object of the invention, a high degree of electrical insulation

  This is achieved because of the presence of sidewalls 10 and 11, on the one hand. which at the contact piece 2 in particular, do not have an opening. It will also be noted that the articulation

  formed by sectors 130 and 131, the housing

  cellar 13, the cylindrical shoulder 32, and the grooves

  33, 34 because of their character of comparison

  cited, to provide good protection c_ the contact area of the contact piece 2 and in particular of

  the arcuate portion 22 thereof.

  Another advantageous embodiment, because simplified, of the connector by displacement of insulation

  monconductor cable object of the invention will be de-

  written in conjunction with Figures 2a and 2b. In the aforementioned embodiment, the articulation of the lever

  connection 3 to the connector body 1 has been simplified.

  as will be described hereinafter, this type of connector according to the object of the invention,

  can be used in applications in the-

  what the degree of insulation of the side faces 10

and 11 may be less important.

  According to FIGS. 2a and 2b, the lever 3 is rotatably mounted in a notch with a circular edge marked 100. The lever 3 comprises a

  trunnion noted 300, forming a cylindrical axis of rotation

  than, engaged in the notch with circular board 100.

  The axis of rotation and the circular edge of the notch are centered on the direction A orthogonal to the elementary connector body 1. In order to ensure the abutment of the connection lever 3, when it is in the position of opening, the side walls 10 and 11 may advantageously be provided with bosses 500 and the connection lever 3 may be provided on its end face with housing 501 intended to abut on the bosses 500 previously mentioned. The bosses 500 and the housings 501 may advantageously be shaped so as to block the connection lever 3 in the open position. Note of course that in Figure 2b, the connector body 1 is shown in a front view of a section taken along a longitudinal plane of symmetry of Figure 2a, while the connecting lever 3 is shown in a view. side of the connection lever

represented in FIG. 2a.

  Another embodiment of the insulating displacement connector for a single-conductor cable that is the subject of the invention will be described in connection with the

  FIGS. 3a and 3b, this embodiment being likewise

  likely to be used in applications

  requiring a good degree of insulation of the side faces

  although the degree of isolation of the embodiment under consideration is, however,

  lower than the degree of isolation of the mode of

  the representation shown in FIGS.

  According to FIGS. 3a and 3b, the lateral walls 10 and 11 of the elementary connector body 1 are flexible and comprise two circular housings marked 1000, centers on the direction

  orthogonal to the elementary connector body.

  In addition, the connection lever 3 comprises two

  Cylindrical sages rated 3000, forming a trunnion

  same diameter as the two circular housings 1000.

  These cylindrical bosses 3000 trunnion are intended to be engaged in the circular housing 1000o snap. Of course, the side walls and 11 are also provided with bosses 500 forming a stop in the open position of the connection lever 3,

  the latter being itself provided with housing 501 des-

  designed to abut against the bosses 500 above.

  The characteristics common to connec-

  insulation displacement to the single-core cable

  object of the invention, relating to the three previously described embodiments will be given now, particularly with regard to the lever of

connection 3.

  As represented on all

  aforementioned drawings, the connection lever 3 may comprise

  advantageously a lever body 35, the di-

  cross-section parallel to the direction of ortho-

  gonal to the elementary connector body 1 is equal

  substantially to that of dwelling 12 in the same direc-

  tion. It may further comprise a lever arm 36,

  extending longitudinally in the longitudinal direction

dinal of housing 12.

  In accordance with an advantageous feature

  Toweling the connector object of the invention, the connection lever 3 and in particular the lever body and the lever arm, respectively referenced 35, 36, are retracted into the housing 12, in the closed position of the connection lever 3. , a recess noted respectively 115, can be provided on the side faces 10 and 11, so as to facilitate gripping

  the end of the lever arm 36.

  Likewise, as appears in particular in FIGS. 1b, 2b, 3b, the blind hole 31 has its connection opening directed towards the end of the lever arm 36. Of course, advantageously and without limitation, the blind hole 31 can be replaced

  through a hole passing through the lever body 35.

  The branches 20 and 21 of the room

  2 are shaped so as to constitute a substantially V-shaped groove. Thus, during the transition from the open position to the closed position of the connection lever 3, the cable to be connected C having been introduced into the connection port 31 , the cable C to be connected provided with its insulator is forcibly inserted into the housing formed by the branches 20 and 21 ensuring on the one hand the electrical connection of the central core of the conductor C

  with branches 20 and 21, and on the other hand a lock

  the mechanical lever of the connection lever 3, via

  cable, which has been brought into the corner position

in the V-shaped slit.

  Of course, the connector body

  1 and the connection lever 3 can be

  made of a material such as polyamide material

  mide or polycarbonate, and obtens by molding. The particularly simple shapes or structures of both the elementary body 1 and the connection lever 3, in the various embodiments mentioned above, make it possible to obtain cost components

relatively weak.

  The connection piece 2 can be

  in a phosphor bronze or a beryl bronze

  lium and may advantageously comprise a coating

tin protector.

  The insulation displacement connector for a single-conductor cable that is the subject of the invention is particularly advantageous in that it enables either the connection of a single-conductor cable or a connector then comprising an elementary connector body.

  the connection of several single-core cables.

  In the latter case, the elementary connectors may be arranged adjacent to one another by their transverse dimension and be mutually fixed, in particular

by interlocking or latching.

  Preferably, the connector object of the invention

  vention can be used to achieve, as shown in Figure 4, a terminal block provided with a large number of adjacent elementary connectors according to their transverse dimension. In this case, and always

  given the high degree of insulation desired, the

  12 of an elementary connector has a

  side wall 10, 11 with the corresponding wall

  housing 12 of the adjacent elementary connector.

  The terminal block thus lends itself easily to the molding of a

  single piece and retains a small transverse dimension

  dirty. Although of simple structure, the terminal block presents, because of the aforementioned structure,

  a high degree of isolation of the various pieces of con-

  tact and a high degree of compactness.

Claims (13)

  1. Connector by displacement of insulation for single-conductor cable (C), characterized in that it comprises at least one elementary connector formed of an elementary connector body (1) comprising   two side walls (10, 11) parallel   delimited housing (12),   - a contact piece (2) with two branches   ches (20,21) inserted into said housing (12) and having an arcuate portion (22) centered in position relative to a direction (C) orthogonal to said elementary connector body,   a connection lever (3) mounted   in the housing (12) between the two walls   parallels to the said direction or-   thogonal, said lever (3) having a slot in   arc (30) which may be engaged or degenerated   of the arcuate part (22) of the contact piece during the rotation movement and a blind hole (31) communicating said slot with the outside, said lever (3) after insertion of a cable (C) in said blind hole (31) allowing in the closed position, the jamming of said cable between the two branches (20,21) of the contact piece (2) for making an electrical contact by displacement of insulation . 2. Connector according to claim 1,   characterized in that said lever (3) is mounted   by means of a substantially cylindrical shoulder (32) forming a hinge with a housing   concave (13) formed in the body of the elemen-   gap (1) and communicating with the housing (12).   3. Connector according to claim 2, characterized in that said concave housing (13) comprises two circular sectors (130,131) forming   stop at the opening of the lever (3), said lever   bearing two circular grooves (33,34) mounted on   slip on said sectors (130,131), the shoulder   cylindrical housing (32), the concave housing (13), the sectors (130,131) and grooves (33,34) being centered on the direction- () orthogonal to the connector body   elementary and forming axis of rotation.   4. Connector according to claim 3, characterized in that said circular sectors (130,131) and the cooperating grooves are shaped to oppose the extraction of the lever (3) out of the housing (12).   Connector according to claim 1 or 2,   characterized in that said lever (3) is mounted   in a notch with a circular edge (100), said lever (3) having a pin (300) forming a cylindrical axis of rotation engaged in the notch on board   (100), the axis of rotation and the circular edge   the notch being centered on the direction (A) or-   thogonal to the elementary connector body.   Connector according to claim 1 or 2,   characterized in that the side walls are   ples and comprise two circular housings (1000) centered on said direction (W) orthogonal to said auditory   elementary connector body, said lever comprises   both cylindrical bosses (3000) forming   lon, the same diameter as the two dwellings circula-   - res (1000), intended to be engaged in these by snapping.   Connector according to one of the claims   preceding, characterized in that said lever of   nexion (3) comprises: - a lever body (35) whose transverse dimension parallel to the direction (orthogonal D   to the elementary connector body is equal sensitive-   the housing (12) in the same direction,   a lever arm (36) extending longitudinally   nally in the longitudinal direction of the dwelling (12).   Connector according to one of the claims   preceding, characterized in that said lever and in particular the lever body and the lever arm   closed position are retracted into said housing.   Connector according to claims 7 and   8, characterized in that the blind hole (31) has its connection opening through which the cable to be connected is inserted on the lever arm (36) and housing side (12).   Connector according to one of the claims   1 to 9, characterized in that the blind hole (31) is replaced by a hole passing through the lever body (35).   11. Connector according to one of the claims   tions, characterized in that the said branches   (20,21) of the contact piece (2) form a substantially V-shaped groove. 12. Connector according to claim 11, characterized in that said contact piece (2)   is attached to the elementary connector body by snap   ging. 13. Terminal block, characterized in that it comprises   a connector according to one of claims 1 to 12   provided with a plurality of adjoining elementary connectors   cent according to their transverse dimension, the connector body being molded and the housing (12) of each elementary connector having a side wall (10, 11) common with the corresponding wall of the housing   (12) of the adjacent elementary connector.