JP2010092811A - Multiple electric connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable to stably carry out fitting and pulling-out of a multiple electric connector 10 which has a plurality of plug modules 12 with a simple structure. <P>SOLUTION: To respective fitting connecting parts of a plurality of fitting connecting parts 11a installed in parallel with an insulation housing 11 so that the plurality of plug modules 12 are respectively fitted or pulled out, reinforcing members 13a, 13b against an additional stress accompanying fitting and pulling-out of the connector 10, 20 are additionally installed. Rigidity or strength of the fitting connecting parts 11a to which a large stress is added at the time of fitting and pulling out the connector 10, 20 is largely augmented so that even when high load is given when the connectors are integrally and simultaneously fitted or pulled out in a state that the plurality of plug modules 12 are fitted, or the number of the fitting connecting parts 11a is increased and the insulation housing 11 becomes thin-walled, deformation or breakage of the insulation housing 11 or the like is prevented. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a multiple electrical connector configured such that a plurality of plug modules are connected to or disconnected from a single insulating housing.

  In general, various electrical devices widely use an electrical connector configured to fit and remove a pair of connectors, and an appropriate signal transmission medium is connected to one of the connectors. 2. Description of the Related Art Conventionally, a multi-connection electrical connector that can connect or disconnect a plurality of plug modules independently has been known (see Patent Documents 1 and 2 below). In such a multi-connector electrical connector, a plurality of fitting connection portions are arranged side by side in, for example, a row in an integral insulating housing, and each of the plurality of fitting connection portions is described above. Each plug module is connected or disconnected separately.

  Such a multi-connector electrical connector capable of connecting a plurality of plug modules has convenience in that it is possible to appropriately select and connect signal transmission media of each system. There is a problem that deformation stress is likely to be generated in the connection portions of the plurality of plug modules when the continuous electrical connector is fitted to or removed from another connector. In particular, when multiple connected electrical connectors with multiple plug modules in a connected state are simultaneously fitted and removed from other connectors, the entire insulation housing, including the plug module connection portion, is large. Since stress is generated, deformation or the like is likely to occur. Furthermore, when the number of fitting connection portions is large, the thickness of the insulating housing at the connecting portion of the plug module tends to be reduced, and the insulating housing and the like may be damaged.

  In addition, when connecting a plurality of plug modules to the fitting connection portion, each plug module is connected independently, so that there is a problem that the connection state is likely to be unstable, and the last of the plurality of plug modules is If an error such as misalignment occurs in the fixed position, unexpected action force may be generated on various parts fitted by plug module connection, such as contacts (conductive terminals), resulting in deformation or damage. There is also.

JP 2000-150080 A Japanese Patent Laid-Open No. 7-106003

  Accordingly, the present invention provides a highly reliable multi-connector electrical connector that can stably perform fitting / removal of a multi-connector electrical connector having a plurality of plug modules with a simple configuration. Objective.

  In order to achieve the above object, in the electrical connector according to the present invention, each of a plurality of plug modules connected with appropriate signal transmission media is independent of a plurality of fitting connection portions arranged in parallel in an integral insulating housing. A multi-connected electrical connector configured to be connected to or disconnected from the mating connector, wherein the insulating housing to which the plurality of plug modules are connected is fitted to or removed from the mating connector. In the above, a configuration is adopted in which a fitting member provided in parallel with the insulating housing is provided with a reinforcing member against an additional stress accompanying fitting or unplugging with the mating connector.

  According to the electrical connector having such a configuration, the rigidity or strength of the fitting connection portion to which a large stress is applied when fitting / removing with the mating connector is attached to the fitting connection portion. For example, when a high load is applied by simultaneously fitting or removing the entire connector in a state where a plurality of plug modules are connected, the number of fitting connection portions can be increased. Even when the insulating housing is thinned by increasing the rigidity or strength of each fitting connection portion by the reinforcing member, deformation or breakage of the insulating housing or the like can be prevented.

  Moreover, it is preferable that the said reinforcement member in the electrical connector concerning this invention is arrange | positioned along the said fitting connection part.

  According to the electrical connector having such a configuration, the rigidity or strength of the fitting connection portion is efficiently enhanced by the reinforcing member attached to the fitting connection portion.

  Moreover, it is preferable that the said reinforcement member in the electrical connector concerning this invention is formed so that a part of conductive shell with which the said insulation housing was mounted | worn may be made.

  According to the electrical connector having such a configuration, since the reinforcing member is formed integrally with the conductive shell, the manufacturing of the reinforcing member is facilitated and the reinforcing member is supported by the main body of the conductive shell. As a result, the rigidity of the reinforcing member is further improved. In addition, since the conductive shell mounted on the insulating housing can be configured to form a double shield together with the conductive shell of the plug module, the effect of blocking external noise (EMI) can be improved. Figured.

  In the electrical connector according to the present invention, it is preferable that the conductive shell having the reinforcing member is insert-molded in the insulating housing.

  According to the electrical connector having such a configuration, the conductive shell having the reinforcing member is efficiently attached to the insulating housing, and the reinforcing member is integrally embedded inside the insulating housing. Even with a relatively small reinforcing member, the rigidity of the insulating housing can be improved satisfactorily.

  Further, in the electrical connector according to the present invention, mechanical fixing means for holding the fitting connection portion and the plug module in a connected state is provided, and each of the mechanical fixing means includes the fitting connection portion. It is preferable that a position adjustment clearance for the final fixing position of the plug module in the parallel direction is provided.

  According to the electrical connector having such a configuration, when the plug module connected to the fitting connection portion is held at the final fixing position by the mechanical fixing means, the position adjustment clearance provided in the mechanical fixing means is reduced. Accordingly, the degree of freedom of the plug module is ensured in the parallel direction of the fitting connection portion. Therefore, for example, even when a positional deviation error or the like with respect to the final fixing position of the plug module has occurred, the positional deviation error or the like is absorbed by the above-described positional adjustment clearance. Connection status can be obtained.

  Moreover, it is preferable that the mechanical fixing means in the electrical connector according to the present invention is provided with a position adjustment clearance of a final fixing position in the connecting or detaching direction of the plug module with respect to the fitting connection portion.

  According to the electrical connector having such a configuration, when the plug module connected to the fitting connection portion is held at the final fixing position by the mechanical fixing means, the position adjustment clearance provided in the mechanical fixing means is reduced. Accordingly, the degree of freedom of the plug module is further secured in the connecting or disconnecting direction, and a more stable electrical connection state can be obtained.

  In the electrical connector according to the present invention, the mechanical fixing means includes the plug in a direction orthogonal to a plane including both a parallel direction of the fitting connection portion and a connection direction of the plug module to the fitting connection portion. It is preferable that the final fixing position of the module is configured to restrict positioning without interposing a position adjustment clearance.

  According to the electrical connector having such a configuration, when the plug module connected to the fitting connection portion is held at the final fixing position by the mechanical fixing means, the parallel direction of the fitting connection portion and the connection direction of the plug module In a direction perpendicular to the plane including both of the above, that is, a direction that does not have a direct relationship with the electrical contact property, the plug module is guided while being stably positioned. The detachment operation is performed well.

  Further, the mechanical fixing means in the electrical connector according to the present invention includes a planar substantially rectangular locking hole formed in an insulating housing having the fitting connection portion, and the locking module provided in the plug module. The engaging protrusion is fitted in the hole, and the engaging protrusion is formed in a substantially triangular shape having a top portion in the connecting direction of the plug module with respect to the fitting connection portion. It is preferable.

  According to the electrical connector having such a configuration, when the plug module is connected, it is smoothly inserted into the locking hole from the top of the engaging projection, that is, the tip of the spire, and the plane is substantially triangular. The bottom part forming the bottom of the shape is securely locked to the locking hole, so that a stable fitting state can be obtained.

  Moreover, it is preferable that a plurality of the mechanical fixing means in the electrical connector according to the present invention is provided for the one fitting connection portion.

  According to the electrical connector having such a configuration, since the plug module connected to one fitting connection portion is locked at a plurality of locations, the movement of the plug module, particularly in the rotation direction, is well prevented. As a result, a stable fitting state can be obtained.

  As described above, the electrical connector according to the present invention can be fitted or mated with the mating connector in each of the plurality of fitting connection portions arranged in parallel in the insulating housing so that the plurality of plug modules are connected or disconnected, respectively. A reinforcement member is added to the additional stress accompanying removal, and the rigidity or strength of the mating connection part to which large stress is applied when mating / unmating with the mating connector is greatly increased, and multiple plug modules are connected. Even when a high load is applied by fitting and removing the entire connector at the same time, or when the insulation housing is made thin by increasing the number of fitting connection parts, Since it is configured to prevent deformation and breakage of the insulating housing, etc., it is possible to stably connect and disconnect multiple connected electrical connectors having multiple plug modules with a simple configuration. Ukoto can, it is possible to enhance the reliability of Tarenso electrical connector inexpensive and significantly.

  Hereinafter, embodiments in the case where the present invention is applied to a plug connector using a coaxial cable as a signal transmission medium will be described in detail with reference to the drawings.

[Overall structure of connector assembly]
First, an assembly of an electrical connector according to an embodiment of the present invention shown in FIGS. 1 to 3 is a plug connector in which terminal portions of coaxial cables SC as a plurality (four) of signal transmission media are connected. (Vertical fitting connector) comprising (multi-connecting electrical connector according to the present invention) 10 and a receptacle connector 20 mounted on a printed wiring board (not shown). The plug connector 10 and the receptacle connector 20 constituting the electrical connector assembly have an elongated shape along the arrangement direction of the coaxial cables SC. For example, as shown in FIG. As shown, the plug connector 10 is disposed substantially in parallel with the receptacle connector 20 mounted on a printed wiring board (not shown), and is directed toward the lower side in the figure substantially orthogonal to the printed wiring board. When the plug connector 10 is lowered and the fitting portion of the plug connector 10 is inserted into the fitting portion of the receptacle connector 20, both the connectors 10 and 20 are fitted as shown in FIGS. It has been made into a configuration. Hereinafter, the fitting direction into which the plug connector 10 is inserted is defined as a downward direction, and the removal direction opposite to the fitting direction is defined as an upward direction.

[About plug connectors (multiple electrical connectors)]
Here, although the said plug connector 10 comprises the multiple attachment electrical connector concerning this invention, as FIG. 5-FIG. 8 show also, along the arrangement direction of the coaxial cable SC mentioned above. It has a plug housing (insulating housing) 11 made of an insulating member extending in an elongated shape. A plurality of (four) plug modules 12 to 12 each having the coaxial cable SC coupled thereto are connected to or detached from the end surface portion of the plug housing 11 that is elongated. It has been made into a configuration. Hereinafter, in the plug housing 11, the side on which the plug module 12 is fitted is defined as a rear end side (right side in FIG. 5), and the opposite side is defined as a front end side (left side in FIG. 5).

  In the plug housing (insulating housing) 11, a plurality (four bodies) of fitting connection portions 11 a to 11 a having openings at the rear end surface of the plug housing 11 are arranged in parallel along the longitudinal direction. (See FIGS. 7 and 8 in particular). Each of the fitting connection portions 11a includes a concave space partitioned by a substantially semicircular annular wall surface, and is directed from the opening on the rear end side of the fitting connection portion 11a toward the inner annular space. Thus, each of the plug modules 12 described above is inserted independently.

  In addition, a conductive shell 13 as shown in FIG. 9 is mounted on the plug housing (insulating housing) 11 by, for example, insert molding or press fitting. The conductive shell 13 is formed by bending a thin plate-shaped metal member to have an appropriate shape, and is substantially at the front end surface side portion, the flat surface side portion, and the longitudinal side portions of the plug housing 11. It is arranged so as to cover the entire surface from the outside. Further, the conductive shell 13 is formed so as to cover a region excluding the above-described fitting connection portions 11 a to 11 a from the outer side with respect to the bottom side portion of the plug housing 11. Each part of the conductive shell 13 is configured to be in electrical contact with the conductive shell 23 on the receptacle connector 20 side, as will be described later.

  As described above, the conductive shell 13 is formed so as to cover a part of the bottom side portion of the plug housing (insulating housing) 11. More specifically, the bottom side portion of the conductive shell 13 is formed. Is extended from the lower end edge on the front side toward the rear side of the bottom surface, and has an inclined side so as to avoid the above-described fitting connection portions 11a to 11a. That is, a pair of outer reinforcing members 13a and 13a having a substantially plane shape are disposed at both end portions in the longitudinal direction of the conductive shell 13, and between the pair of outer reinforcing members 13a and 13a. The three inner reinforcing members 13b, 13b, 13b having a substantially triangular plane are arranged.

  These outer reinforcing members 13a, 13a and inner reinforcing members 13b, 13b, 13b are arranged in a line along the longitudinal direction of the conductive shell 13, and are arranged on both sides of the arrangement. The pair of outer reinforcing members 13a and 13a thus arranged are arranged on the outer sides of the fitting connection portions 11a arranged at both end positions of the plug housing (insulating housing) 11 described above. Further, the inner reinforcing members 13b, 13b, 13b are arranged in a portion between the fitting connection portions 11a, 11a adjacent to each other in the longitudinal direction of the plug housing 11, and sandwich the fitting connection portions 11a from both sides. It is in a placement relationship.

  Each of the outer reinforcing member 13a and the inner reinforcing member 13b arranged in this manner is formed on the rear side (the right side in FIG. 6) so as to be relatively wide from the front lower end edge of the conductive shell 13. After extending toward the end, it extends so as to form an inclined side along the outer diameter of each fitting connection portion 11a described above. The rear side extending end portions (the right end portion in FIG. 6) of the outer reinforcing member 13a and the inner reinforcing member 13b are located in the vicinity of the maximum outer diameter portion of each fitting connection portion 11a described above.

  A hook-like embedded piece 13c that is bent so as to rise up in a substantially L-shaped side surface is provided at the rear end portion (the right end portion in FIG. 6) of each of the outer reinforcing member 13a and the inner reinforcing member 13b. These hook-like embedded pieces 13 c are arranged so as to protrude by a predetermined amount toward the inner side of the plug housing (insulating housing) 11. By mounting the outer reinforcing member 13a and the inner reinforcing member 13b of the conductive shell 13 insert-molded or press-fitted in such an arrangement relationship, the periphery of each fitting connection portion 11a and the plug housing ( The overall strength of the insulating housing 11 is greatly improved.

  Further, as described above, the fitting connection portions 11a to 11a are provided with a front rectangular opening for inserting the plug module 12 into the rear end surface of the plug housing (insulating housing) 11, Each opening has a shape opened downward. That is, the portion corresponding to the lower edge of the opening edge portion forming the fitting connection portion 11a is in a state where the central portion is open, and a pair provided on both side portions of the opening portion. Only a part is formed by the guide protrusions 11b and 11b (see FIGS. 7 and 8 in particular). The pair of guide protrusions 11b and 11b protrude from both sides of the opening so as to face each other by an appropriate amount of protrusion, and hold the plug module 12 inserted from the opening from below. However, it has a function to guide. On the other hand, in the portion corresponding to the upper edge of the opening edge portion of the fitting connection portion 11a, the upper wall portion (planar side wall portion) of the plug housing 11 is substantially linear over the entire length of the opening portion. So as to extend.

  Furthermore, a pair of locking holes 11c and 11c as mechanical fixing means are provided on the upper side wall (planar side wall) of the plug housing (insulating housing) 11 for each of the fitting connection parts 11a described above. Is formed. Each of these locking holes 11c is formed to have a substantially rectangular plane shape, and a pair of locking holes also formed as mechanical fixing means at the same position on the upper side wall of the conductive shell 13. It arrange | positions so that it may connect with the holes 13d and 13d. Each of the locking holes 11c and 13d is configured to be fitted with an engaging protrusion 12a provided on the plug module 12 side, which will be described later, but the locking holes on the plug connector 10 side. Position adjustment clearances Cx and Cy are provided between 11c and 13d and the engaging protrusion 12a on the plug module 12 side to ensure the degree of freedom of the final fixing position. This will be described in detail later.

[About plug modules]
On the other hand, in the plug module 12 described above, the terminal portion of the coaxial cable SC as a signal transmission medium is connected to the rear end portion of the plug module 12 as shown in FIGS. . Hereinafter, the end on the side to which the coaxial cable SC is connected is referred to as a rear end, and the other end on the opposite side is referred to as a front end. The direction in which the plug module 12 is inserted (fitted) into the fitting connection portion 11a of the plug housing 11 is defined as the front, and the direction in which the plug module 12 is removed in the opposite direction is defined as the rear.

  The terminal portion of each coaxial cable (signal transmission medium) SC connected to the plug module 12 is stripped of the covering material, so that the cable center conductor (signal line) SCa and the cable outer conductor (shield line) SCb are coaxial. It is exposed to form a shape. The cable center conductor SCa disposed along the center axis of the coaxial cable SC is connected to a signal transmission conductive contact (conductive terminal) 12c mounted inside the module housing 12b of the plug module 12. Thus, a signal circuit is configured.

  The conductive contact (conductive terminal) 12c described above extends substantially horizontally from the connecting portion with the cable center conductor SCa toward the front side (the left side in FIG. 2), and the intermediate position in the extending portion. Further, a contact portion that contacts the above-described receptacle connector 20 side is provided. The contact portion of the conductive contact 12c is formed so as to be disposed at a substantially central position of a hollow annular fitting portion provided in the module housing 12b, and the plug connector 10 described above is connected to the receptacle connector 20. When fitted, the contact portion on the side of the receptacle connector 20 is brought into contact with an electrical connection.

  The leading end portion in the extending direction of the conductive contact 12c is formed to be bent so as to be reversed in the opposite direction with a substantially U shape, and a concave bent portion formed in the middle of the inverted portion. The cable center conductor (signal line) SCa described above is sandwiched by the elastic force.

  Further, the cable outer conductor SCb disposed so as to surround the outer peripheral side of the cable center conductor SCa described above is sandwiched vertically between the upper ground bar 12e and the lower ground bar 12f constituting the ground member. And are connected by soldering, caulking, pressure welding or the like. These ground bars 12e and 12f are connected to the ground via the above-described conductive shell 13 and the like, thereby forming a ground circuit.

  Furthermore, a conductive shell 12g is mounted on the module housing 12b by, for example, insert molding or press fitting. The conductive shell 12g is formed by bending a thin plate-like metal member to have an appropriate shape, and almost entirely outside the lower end side opening of the annular fitting portion of the module housing 12b. It is formed so as to cover from the side. At the rear end portion (right end portion in FIG. 11) of the conductive shell 12g, a ground connection piece 12d that is notched so as to form a tongue piece shape is provided so as to extend obliquely downward. The tip end portion of the connecting piece 12d on the extending side is in pressure contact with the above-described upper ground bar 12e, thereby performing ground connection.

  The conductive shell 12g is integrally provided with a substantially hollow cylindrical ground contact 12h so as to surround the conductive contact 12c described above in an annular shape. The ground contact 12h is mounted along the outer periphery of the annular fitting portion of the module housing 12b. When the plug connector 10 is fitted to the receptacle connector 20, the ground contact 12h is connected to the ground contact 22 on the receptacle connector 20 side. It has a function of constituting a ground circuit by being brought into contact and being electrically connected.

  A pair of guide portions 12i and 12i are provided on both side portions of the conductive shell 12g, that is, both end portions in the longitudinal direction of the plug connector 10 so as to project outward. These guide portions 12i, 12i are formed of rail-like members extending in an elongated shape along the connecting / disconnecting direction (front-rear direction) of the plug module 12 with respect to the above-described fitting connection portion 11a. 10 is configured to be inserted along both side portions of the opening of the fitting connection portion 11 a provided in 10. More specifically, as described above, the guide portions 12i and 12i move relative to the guide protrusions 11b and 11b provided on both side portions of the opening of the fitting connection portion 11a while sliding. The plug module 12 is configured to smoothly guide connection / disconnection.

  Furthermore, as described above, the pair of engaging protrusions 12a and 12a are provided on the upper surface portion of the conductive shell 12g. The pair of engaging protrusions 12a and 12a constitute a mechanical fixing means when the plug module 12 is inserted into the plug connector 10 side, and the insertion direction of the plug module 12b (left side in FIG. 11). The surface is formed in a substantially triangular shape having a spire shape toward (direction). The pair of engaging projections 12a and 12a are locking holes formed as a mechanical fixing means in the same manner as the mechanical fixing means on the plug housing 11 and the conductive shell 13 of the plug connector 10 described above. The parts 11c and 11c are configured to be fitted inside.

  Thus, when the plug module 12 is inserted into the plug connector 10 side and the engaging projections 12a on the plug module 12 side are fitted inside the locking holes 11c and 13d on the plug connector 10 side, In particular, as shown in FIG. 13, the degree of freedom of the final fixing position is ensured between the locking hole portions 11c and 13d on the plug connector 10 side and the engaging projection portion 12a on the plug module 12 side. Position adjustment clearances Cx and Cy for this purpose are formed. One of the two position adjustment clearances Cy is formed from an appropriate gap in the connector longitudinal direction which is the left-right direction in FIG. 13, that is, the parallel direction (Y direction) of the fitting connection portions 11a to 11a. In addition, the other position adjustment clearance Cx is formed from an appropriate gap in the vertical direction in FIG. 13, that is, in the connecting or disconnecting direction (X direction) of the plug module 12.

  As described above, in the mechanical fixing means 11c, 13d and 12a in the present embodiment, the position adjustment clearances Cx and Cy for ensuring the degree of freedom of the final fixing position of the plug module 12 with respect to the plug connector 10 are provided. The plug module 12 can finally move somewhat by the position adjustment clearances Cx and Cy. As a result, for example, even if a misalignment error or the like occurs between the contact portions of both (the plug connector 10 and the receptacle connector 20), the plug module 12 is connected to the plug housing 11 so as to absorb the misalignment error. The position is relatively moved, and a good electrical contact state can be stably obtained.

  It should be noted that the Z direction perpendicular to the X direction and Y direction described above, that is, the plane including both the parallel direction of the fitting connection portion 11a and the connection or disconnection direction of the plug module 12 with respect to the fitting connection portion 11a. In the vertical direction (height direction), the plug module 12 has only the minimum sliding clearance that enables the plug module 12 to move relative to the plug housing 11. The final fixing position of the plug module 12 is regulated without interposing a position adjustment clearance such as a direction. More specifically, the height dimension in the vertical direction (Z direction) of the above-described guide portion 12i is configured to be substantially the same as the distance between the upper wall portion of the plug housing 11 and the guide projection 11b. Thus, the plug module 12 is inserted into the fitting connection portion 11a while being positioned in the vertical direction (Z direction), and the engagement protrusion portion 12a is inserted into the locking hole portion 11c at the final fixing position. , 13d.

[Receptacle connector]
On the other hand, a receptacle connector 20 to which the plug connector (multiple electrical connector according to the present invention) 10 is fitted is an elongated shape similar to the plug housing 11 described above, particularly as shown in FIGS. The receptacle housing 21 is provided. A plurality of (four) conductive contacts (conductive terminals) 22 to 22 are attached to the bottom surface of the receptacle housing 21 by, for example, press-fitting or insert molding along the longitudinal direction. Each of these conductive contacts 22 is constituted by a substantially columnar member disposed corresponding to the plug module 12 described above, and is provided so as to protrude upward from the bottom surface of the receptacle housing 21. .

  A contact portion is formed at the upper end portion of the substantially cylindrical conductive contact (conductive terminal) 22, and when the plug connector 10 is fitted to the receptacle connector 20 from above, The contact portion of the conductive contact 12c provided on the plug module 12 is brought into pressure contact with the upper end contact portion from above to be electrically connected (particularly, refer to FIG. 2). ).

  The lower end portion of each conductive contact 22 described above is formed as a solder connection portion 22 a extending forward (to the left side in FIG. 2) along the bottom surface of the receptacle housing 21. The solder connection portion 22a is soldered to a conductive path on a printed wiring board (not shown) for mounting.

  Further, a substantially hollow cylindrical ground contact 22b is attached to the bottom surface of the receptacle housing 21 by insert molding or the like so as to surround the conductive contact (conductive terminal) 22 concentrically. A plurality of (four) ground contacts 22b are arranged corresponding to the above-described ground contact 12h on the plug connector 10 side, and when the plug connector 10 is fitted to the receptacle connector 20, these ground contacts 22b are arranged. Both ground contacts 12h and 22b are contacted to form a ground circuit.

  Each of the ground contacts 22b on the receptacle connector 20 side described above extends rearward along the bottom surface of the receptacle housing 21 and branches into three solder connection portions 22c, 22c, and 22c. These solder connection portions 22c, 22c, and 22c are arranged so as to be juxtaposed at an appropriate interval in the connector longitudinal direction (perpendicular to the plane of FIG. 15), and are soldered to conductive paths on a printed wiring board (not shown). Attached to be implemented.

  A pair of solder connection portions 22c and 22c located on both sides of the three solder connection portions 22c, 22c and 22c provided for each ground contact 22b are notched on the bottom surface portion of the receptacle housing 21 described above. It is provided so as to extend along the side part of the part 21a. That is, in the ground contact 22b adjacent to each other, between the pair of solder connection portions 22c, 22c, a notch 21a having a substantially rectangular plane is provided on the bottom surface of the receptacle housing 21, respectively. The solder connecting portions 22c and 22c on both sides are provided along the sides of the portion 21a so as to form a long shape. Since the pair of solder connection portions 22c and 22c are arranged in a long shape in this way, the electrical resistance of the solder connection portion 22c is reduced, and the space on the inner side of the notch portion 21a is a solder material. Therefore, the solder connection can be easily and satisfactorily performed. Further, since the solder connection area is increased, it is firmly connected to a printed wiring board (not shown).

  Further, a portion from the front end side standing wall portion of the receptacle housing 21 to both end portions in the longitudinal direction is covered with the conductive shell 23. The conductive shell 23 is formed of a thin plate-like metal member. When the plug connector 10 described above is fitted to the receptacle connector 20, the conductive shell 23 comes into contact with the conductive shell 13 on the plug connector 10 side, thereby grounding. It has a function of constituting a circuit.

  A part of the conductive shell 23 is formed so as to form a hold-down 23a soldered to the conductive path on the printed wiring board described above, and a ground circuit is formed by the hold-down 23a. The entire receptacle connector 20 is firmly held. The hold down 23a is formed so as to be positioned at approximately four corners of the receptacle connector 20 as a whole.

  Further, the front end side portion (the left end side portion in FIG. 15) of the conductive shell 23 described above is provided with a front end side standing wall portion 23b extending along the connector longitudinal direction (perpendicular to the plane of FIG. 15). A contact spring portion 23c extending in the vertical direction (height direction) is formed on the inner wall surface of the front end side standing wall portion 23b so as to form a cut-and-raised shape. A plurality of contact spring portions 23c are provided at predetermined intervals in the connector longitudinal direction (perpendicular to the plane of FIG. 15), and the above-described contact spring portion 23c has been described above when the plug housing 11 is fitted. The conductive shell 13 of the plug connector 10 is brought into contact with the contact spring portion 23c to be electrically connected.

  According to the present embodiment having such a configuration, the rigidity or strength of the fitting connection portion 11a of the plug connector 10 to which a large stress is applied when the connectors 10 and 20 are fitted and removed. It is greatly enhanced by the reinforcing members 13a and 13b attached to the fitting connection portion 11a. For example, when a plurality of plug modules 12 are connected and the entire plug connector 10 is simultaneously fitted or removed at a time, a high load is applied, or the number of fitting connection portions 11a is increased. Even when the plug housing (insulating housing) 11 is thin, the rigidity or strength of each fitting connection portion 11a is enhanced by the reinforcing members 13a and 13b. Deformation and breakage are prevented.

  In particular, in this embodiment, since the reinforcing members 13a and 13b are arranged along the fitting connection portion 11a, the rigidity or strength of the fitting connection portion 11a can be efficiently increased.

  In the present embodiment, since the reinforcing members 13 a and 13 b are formed so as to form a part of the conductive shell 13 attached to the plug housing 11, the reinforcing members 13 a and 13 b are connected to the conductive shell 13. Since the reinforcing members 13a and 13b are formed integrally, the reinforcing members 13a and 13b are supported by the main body of the conductive shell 13 and the rigidity is further improved. It is like that.

  At this time, since the conductive shell 13 mounted on the plug housing (insulating housing) 11 forms a double shield together with the conductive shell 12g of the plug module 12, the performance of blocking external noise and the like ( EMI) is improved.

  Furthermore, in this embodiment, since the conductive shell 13 having the reinforcing members 13a and 13b is insert-molded in the plug housing 11, the conductive shell 13 having the reinforcing members 13a and 13b is formed in the plug housing 11. On the other hand, the plug members 11 are efficiently mounted, and the reinforcing members 13a and 13b are integrally embedded in the plug housing 11. The rigidity of the plug housing 11 can be improved satisfactorily by the relatively small reinforcing members 13a and 13b.

  Furthermore, in the present embodiment, the mechanical fixing means 11c, 13d and 12a for holding the plug module 12 in the fitted state are provided with the position adjustment clearance Cy and the plug module 12 at the final fixing position in the parallel direction of the fitting connection portion 11a. Since the position adjustment clearance Cx at the final fixed position in the connection or disconnection direction with respect to the fitting connection portion 11a is provided, the degree of freedom of the plug module 12 is ensured by the position adjustment clearances Cy and Cx. It will be. Therefore, for example, even when a positional deviation error or the like with respect to the final fixed position of the plug module 12 has occurred, the positional deviation error or the like is absorbed by the above-described positional adjustment clearances Cy and Cx. A stable electrical connection state can be obtained.

  At this time, the mechanical fixing means 11c, 13d, and 12a of the plug module 12 are orthogonal to a plane including both the parallel direction of the fitting connection portion 11a and the connection or disconnection direction of the plug module 12 with respect to the fitting connection portion 11a. Since the final fixed position in the vertical direction is regulated without interposing the position adjustment clearance, the plug module 12 is stably held, and the plug module 12 is connected or disconnected. Is supposed to be done well.

  Further, in the present embodiment, when the plug module 12 is connected to the fitting connection portion 11a, the plug module 10 is smoothly inserted into the locking hole portion 11c of the plug connector 10 from the top of the engagement protrusion 12a, that is, the tip of the spire. At the same time, the bottom of the engaging projection 12a that forms the bottom of the substantially triangular plane is securely locked to the locking holes 11c and 13d, and a stable fitting state can be obtained. ing.

  Furthermore, in this embodiment, since the mechanical fixing means 11c, 13d, and 12a of the plug module 12 are provided in two places for one fitting connection part 11a, the plug module 12 is connected to one fitting connection part 11a. The plug module 12 is locked in two places, and particularly the rotational movement of the plug module 12 is prevented well, so that a stable fitting state can be obtained.

  Although the invention made by the present inventor has been specifically described based on the embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention. Needless to say.

  For example, the embodiment described above is for the case where the number of plug modules 12 is four, but the present invention is similarly applied regardless of whether the number of plug modules 12 is four or more or the following. be able to.

  Moreover, although the above-described embodiment is an application of the present invention to a vertical fitting type electrical connector, it can be similarly applied to a horizontal fitting type electrical connector, and the present invention is further applied. The present invention can be similarly applied to, for example, a receptacle connector other than the plug connector.

  Furthermore, the present invention is not limited to the coaxial cable connector as in each of the above-described embodiments, but includes an insulated cable connector, a type of electrical connector in which a plurality of coaxial cables and insulated cables are mixed, and flexible wiring. The present invention can be similarly applied to an electrical connector to which a board or the like is connected, a board-to-board connector for connecting printed boards to each other, and the like.

  As described above, the present embodiment can be widely applied to a wide variety of multiple electrical connectors used in various electrical devices.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external appearance perspective explanatory view which represented the state which fitted the plug connector (multiple connection electrical connector) concerning one Embodiment of this invention from the upper side with respect to the receptacle connector of the other side. It is a cross-sectional explanatory drawing along the II-II line in FIG. It is longitudinal cross-sectional explanatory drawing along the III-III line in FIG. FIG. 4 is an external perspective explanatory view showing a state in which the plug connector (multiple electrical connector) shown in FIGS. 1 to 3 is to be fitted to the other receptacle connector from the upper side. FIG. 5 is a cross-sectional explanatory view showing a single plug connector (multiple electrical connector) shown in FIGS. 1 to 3 at a plug module fitting position along the line V-V in FIG. 4. . FIG. 4 shows a single unit of the plug connector (multiple electrical connector) shown in FIGS. 1 to 3, and is a cross-section at a portion between plug module fitting positions along line VI-VI in FIG. 4. It is explanatory drawing. FIG. 7 is a perspective view illustrating an external appearance of the plug connector (multi-connector electrical connector) illustrated in FIGS. 1 to 6, which is viewed from the rear side where the plug module is to be fitted. FIG. 8 is an external perspective explanatory view showing the plug connector (multiple electrical connector) shown in FIG. 7 from the bottom side. It is an external appearance perspective explanatory view which represented the bottom face side of the electroconductive shell used for the plug connector (multi-connection electrical connector) represented to FIGS. 1-8 from the back side. It is the external appearance perspective explanatory view which represented the plug module used for the plug connector (multi-connecting electrical connector) represented to FIGS. 1-8 from the back side. It is a cross-sectional explanatory drawing along the XI-XI line in FIG. It is an external appearance perspective explanatory view which represented the bottom face part of the plug module represented to FIGS. 1-11 from the back side. FIG. 12 is an enlarged plan view illustrating a configuration of a mechanical fixing unit for the plug module illustrated in FIGS. 1 to 11. FIG. 5 is an external perspective view illustrating a single receptacle connector shown in FIGS. 1 to 4 from the rear side. It is a cross-sectional explanatory drawing along the XV-XV line | wire in FIG.

Explanation of symbols

10 Plug connector (multiple electrical connector)
20 Receptacle connector 11 Plug housing (insulating housing)
11a fitting connection portion 11b guide projection 11c locking hole (mechanical fixing means)
12 Plug module 12a Engaging protrusion (mechanical fixing means)
12b Module housing 12c Conductive contact (conductive terminal)
12d Ground connection piece 12e Upper ground bar 12f Lower ground bar 12g Conductive shell 12h Ground contact 12i Guide portion 13 Conductive shell 13a Outer reinforcement member 13b Inner reinforcement member 13c Hook-like embedded piece 13d Locking hole (mechanical fixing means)
21 Receptacle housing (insulating housing)
21a Notch 22 Conductive contact (conductive terminal)
22a Solder connection portion 22b Ground contact 22c Solder connection portion 23 Conductive shell 23a Hold down 23b Front end side standing wall portion 23c Contact spring portion SC Coaxial cable (signal transmission medium)
SCa Cable center conductor (signal line)
SCb Cable outer conductor (shielded wire)
Cx, Cy Position adjustment clearance

Claims (9)

Each of a plurality of plug modules connected with an appropriate signal transmission medium is independently connected to or disconnected from a plurality of fitting connection portions arranged in parallel in an integral insulating housing. There,
In the multi-connector electrical connector configured such that the insulating housing to which the plurality of plug modules are connected is fitted or removed from the mating connector.
A multi-connector electrical connector, wherein a fitting member provided in parallel to the insulating housing is provided with a reinforcing member against an additional stress accompanying fitting or unplugging with the mating connector.   The multi-continuous electrical connector according to claim 1, wherein the reinforcing member is disposed along the fitting connection portion.   2. The multi-connector electrical connector according to claim 1, wherein the reinforcing member is formed so as to form a part of a conductive shell attached to the insulating housing.   The multi-connector electrical connector according to claim 3, wherein the conductive shell having the reinforcing member is insert-molded in the insulating housing. Mechanical fixing means for holding the fitting connection portion and the plug module in a connected state is provided;
The multi-connector electrical connector according to claim 1, wherein each of the mechanical fixing means is provided with a position adjustment clearance of a final fixing position of the plug module in the parallel direction of the fitting connection portion.   The multi-connector electrical connector according to claim 5, wherein the mechanical fixing means is provided with a position adjustment clearance of a final fixing position in a connecting or detaching direction of the plug module with respect to the fitting connection portion.   The mechanical fixing means adjusts a position of a final fixing position of the plug module in a direction orthogonal to a plane including both a parallel direction of the fitting connection portion and a connection direction of the plug module to the fitting connection portion. 6. The multiple electrical connector according to claim 5, wherein the positioning is regulated without interposing a clearance. The mechanical fixing means has a substantially rectangular locking hole formed in an insulating housing having the fitting connection portion, and an engagement provided in the plug module and fitted in the locking hole. It consists of a protrusion and
The electrical connector according to claim 5, wherein the engaging protrusion is formed in a substantially triangular shape having a top portion in a connecting direction of the plug module with respect to the fitting connection portion.   6. The electrical connector according to claim 5, wherein a plurality of the mechanical fixing means are provided for the one fitting connection portion.

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