JP6442964B2 - Electrical connector - Google Patents

Description

  The present invention relates to an electrical connector having a fitting structure for electrically connecting an appropriate signal transmission medium to a wiring board.

  In general, in various types of electrical equipment, when connecting terminal portions of various signal transmission media such as FPC (flexible printed circuit), FFC (flexible flat cable), or coaxial cable to a printed wiring board, Connector devices are widely used. The electrical connector device is configured such that, for example, a mating connector (plug connector) to which a signal transmission medium such as a coaxial cable is connected is inserted into a first connector (receptacle connector) mounted on a printed wiring board. The electrical connectors are fitted to each other, and signals are transmitted through contact members (conductive terminals) arranged in a multipolar manner inside the connector main body (insulating housing) of both electrical connectors. .

  In such an electrical connector device, conventionally, in order to reduce the influence of electromagnetic wave noise from the outside on the transmission signal or to reduce electromagnetic wave noise radiated toward the outside, the connector main body (insulating housing) A configuration is often employed in which electromagnetic shielding (shielding) is performed by covering the outer surface or the outer side of the contact member with a conductive shell or shield plate made of a thin plate-like metal member.

  However, the conventional electrical connector has a configuration in which the outer surface of the connector body is only covered with a conductive shell or the like, and more specifically, the terminal portion of the contact member (conductive terminal) described above, more specifically, the wiring. The connection portion with the substrate is exposed to the outside without being covered with a conductive shell or the like. For this reason, especially as transmission signals become higher in frequency as in recent years, not only the main part of the contact member (conductive terminal) but also the connection part with the wiring board is eliminated from the influence of external electromagnetic noise. In addition, it is becoming necessary to reliably prevent external radiation of electromagnetic noise from the connection part of the contact member.

  In addition, there is a conventional one where a conductive tape is attached to the connection part between the contact member and the wiring board, and a part where the conductive shell is extended to cover the part, but the conductive tape is used. However, since a relatively troublesome work process of attaching a conductive tape is added, productivity tends to be lowered. Also, if the conductive shell is extended and covered, the connection part between the contact member and the wiring board can no longer be confirmed visually or by image inspection. There is a problem that it becomes difficult to inspect and confirm.

JP 2007-73426 A JP 2011-238410 A

  Therefore, an object of the present invention is to provide an electrical connector that can easily and reliably perform electromagnetic shielding with respect to a connection portion with a wiring board with a simple configuration.

In order to achieve the above object, the invention according to claim 1 is provided with a connector main body portion into which a mating connector is fitted in a state mounted on a wiring board, and is a contact member attached to the connector main body portion. but the electrical connector having a board connection leg portion connected to conductive paths on said circuit board, said connector main body, a shield plate covering the board connection leg of the contact member is provided, the shield plate, The contact member is provided so as to be reciprocally movable between a shield position that covers the board connection leg of the contact member from the outside of the wiring board and a non-shield position that exposes the board connection leg to the outside of the wiring board. In addition, a ground conductive path is formed on the surface portion of the wiring board in the vicinity of the board connecting leg, and the shield plate Ground connecting portion is provided to be connected to the ground conductive path, when the shield plate is moved to the shield position, it is made to the configuration in which the ground connection portion with respect to the ground conducting path is connected Yes.

According to the first aspect of the invention having such a configuration, the shield plate is unshielded from the shield position that covers the board connection leg of the contact member, and the board connection leg is exposed to the outside of the wiring board. The contact state of the contact member with respect to the conductive path on the wiring board is made visible by retreating to the wiring board, and the shield plate is returned to the shield position covering the board connection leg portion of the contact member. By the operation, the electromagnetic shielding (shielding) is surely performed on the board connecting leg , and at the same time, the ground connecting part provided on the shield plate is connected to the ground conductive path arranged near the board connecting leg of the contact member. Since the connection is made, the ground connection is made in the vicinity of the part where electromagnetic shielding is performed. Good characteristics of electromagnetic shielding electric resistance is reduced in the ground circuit for performing蔽is obtained.

At this time, as in the invention according to claim 2 , it is desirable that the ground connection portion of the shield plate is fixed to the wiring board by solder bonding or mechanical coupling means.

According to the invention according to claim 2 having such a configuration, since the ground connection for performing electromagnetic shielding (shielding) is reliably and firmly performed by solder bonding or mechanical coupling means, the characteristics of electromagnetic shielding are achieved. Is further improved.

Further, as in the invention according to claim 3 , a shield shell member that covers an outer surface of the connector main body portion is attached to the connector main body portion, and the shield shell member and the shield plate, It is desirable that the entire contact member including the board connection leg is covered from the outside of the wiring board. Furthermore, as in the invention according to claim 4 5, wherein the shield plate, it is preferably formed so as to cover the whole of the contact member including said board connection leg from the outer side of the wiring board.

According to the invention concerning Claim 3 or Claim 4 provided with such a structure, the electromagnetic shielding (shield) characteristic with respect to a contact member is further improved by both the shield shell member and the shield plate, or the shield plate alone. It will be.

Furthermore, as in the invention according to claim 5 , the mating connector is provided with a fitting holding member that maintains the mating state of the mating connector, and the mating holding member maintains the mating state. It is desirable to be configured to be able to reciprocate between the position to be engaged and the position to release the fitting state. Further, as in the invention according to claim 6 , it is preferable that the mating connector is provided with a lock portion for holding the fitting holding member in the fitting operation position.

According to the invention concerning Claim 5 or Claim 6 provided with such a structure, the fitting state of both electrical connectors is hold | maintained favorably.

As described above, according to the present invention, the connector body portion to which the mating connector is fitted is provided with the shield plate that covers the board connection leg portion of the contact member and performs electromagnetic shielding (shielding), and the shield plate is connected to the board connection leg. The contact state of the contact member to the wiring board can be visually checked by enabling the retraction movement to the non-shield position where the part is exposed to the outside, while the shield plate is moved back to the shield position covering the board connection leg. By doing so, electromagnetic shielding is easily performed on the contact member, and at the same time, the ground connecting portion provided on the shield plate is connected to the ground conductive path disposed in the vicinity of the substrate connecting leg portion of the contact member, thereby performing electromagnetic shielding. By connecting the ground in the vicinity of the part, the electrical resistance of the ground circuit for electromagnetic shielding can be reduced. Since the characteristics of good electromagnetic shielding by Hesi is that constituted so as to obtain, with a simple configuration, it is possible to perform electromagnetic shielding easily and reliably to the substrate connecting the legs of the contact member, reliability of the electrical connector The cost can be improved at a low cost.

FIG. 5 is an external perspective explanatory view showing the receptacle connector according to the embodiment of the present invention before the plug connector as the mating connector is fitted and the shield plate is moved to the “non-shield position”. FIG. 2 is an external perspective explanatory view showing a state where a shield plate is moved to a “shield position” from the state of FIG. 1. FIG. 3 is an external perspective explanatory view showing a state where a plug connector as a mating connector is fitted to the receptacle connector according to the embodiment of the present invention shown in FIG. 2. It is an external appearance perspective explanatory view showing the state where the fitting holding member was rotated from the state of Drawing 3 to a fitting operation position. It is a plane explanatory view of the electric connector device in the fitting state shown in FIG. It is front explanatory drawing of the electrical connector apparatus in the fitting state shown in FIG. It is side surface explanatory drawing of the electrical connector apparatus in the fitting state shown in FIG. It is a back surface explanatory view of the electric connector device in the fitting state shown in FIG. It is transverse cross-sectional explanatory drawing of the direction orthogonal to the connector longitudinal direction in the cross-sectional position of the lower stage side coaxial cable of the electrical connector apparatus in the state before fitting both connectors. It is transverse cross-section explanatory drawing of the direction orthogonal to the connector longitudinal direction in the cross-sectional position of the upper stage side coaxial cable of the electrical connector apparatus in the state before fitting both connectors. FIG. 9 is a cross sectional explanatory view taken along the line CC in FIG. 8. FIG. 9 is a cross sectional explanatory view taken along the line D-D shown in FIG. 8.

  Hereinafter, an embodiment relating to an embodiment in which the present invention is applied to an electrical connector for connecting a plurality of coaxial cables to the printed wiring board side will be described in detail with reference to the drawings.

[Overview of overall structure of electrical connector device]
First, the electrical connector device according to the first embodiment of the present invention shown in FIGS. 1 to 12 includes a plug connector 1 as a mating connector to which a terminal portion of the coaxial cable SC is connected, and a printed wiring board B. The receptacle connector 2 according to the present invention is mounted on a horizontal fitting type electrical connector, and the plug connector 1 faces the receptacle connector 2 as the mating mating connector in a substantially horizontal direction. After the placement, the plug connector 1 is moved along the surface of the printed wiring board B so as to be close to each other, whereby the plug connector 1 passes through the opening of the receptacle connector 2 from the front end side as shown in FIG. The electrical connectors 1 and 2 are brought into a fitted state by being inserted into the interior.

  As described above, in the present embodiment, the direction in which the plug connector (mating connector) 1 is inserted into the receptacle connector 2 and the direction in which the plug connector (partner connector) 1 is pulled out in the opposite direction are substantially coincident with the surface extending direction of the printed wiring board B. However, in the following, the direction in which the surface of the printed wiring board B extends is the horizontal direction, and the direction orthogonal to the surface of the printed wiring board B is the vertical direction. In the plug connector (mating connector) 1, the direction in which the plug connector 1 is inserted into the receptacle connector 2 is the front direction, and the direction in which the plug connector 1 is pulled out in the opposite direction is the rear direction. Furthermore, in the receptacle connector 2, the direction in which the plug connector 1 is extracted from the receptacle connector 2 is a front direction, and the opposite direction is a rear direction.

  Both the electrical connectors of the plug connector (mating connector) 1 and the receptacle connector 2 constituting such an electrical connector device are provided with insulating housings 11 and 21 as connector main bodies made of an elongated insulating member. Each has. These insulating insulating housings 11 and 21 include a large number of conductive contacts (contact members) 12 and 22 along the longitudinal direction (perpendicular to the plane of FIG. 7) of the insulating housings (connector body portions) 11 and 21. They are arranged so as to form a multipolar shape at appropriate pitch intervals.

  Of these two electrical connectors 1 and 2, the rear edge of the plug connector 1 (hereinafter referred to as the rear edge) is arranged so as to be arranged in a multipolar manner along the connector longitudinal direction. The terminal portions of the plurality of coaxial cables SC are connected over two upper and lower stages. Both the upper and lower coaxial cables SC, SC are arranged so as to be displaced from each other by a half pitch in the direction of multipolar arrangement (connector longitudinal direction).

  In the terminal portion of each of the coaxial cables SC, as shown in FIGS. 9 and 10, the covering material is peeled to remove the cable center conductor (signal line) SCa and the cable outer conductor (shield line). The SCb is exposed so as to be coaxial, and the cable center conductor SCa disposed along the center axis of the coaxial cable SC is connected to conductive contacts (conductive terminals) 12 and 22 for signal transmission described later. The signal circuit is configured by being connected. The connection structure related to the cable center conductor SCa will be described in detail later.

  Further, the cable outer conductor SCb arranged so as to concentrically surround the outer peripheral side of the cable center conductor SCa is formed of the ground bar GB constituting the conductive ground member for each of the two upper and lower multipolar arrangement stages. It arrange | positions so that the inside may be penetrated. Each of the two upper and lower ground bars GB in the present embodiment is formed from an elongated block-like member extending in a long shape along the multipolar arrangement direction (connector longitudinal direction) of the coaxial cable SC described above. Each ground bar GB is collectively connected to the cable outer conductor (shield wire) SCb of the coaxial cable SC by soldering, caulking, pressure welding, or the like. Each of the two upper and lower ground bars GB provided in this way is configured to be connected to a ground circuit formed on the printed wiring board B through a conductive shell or the like to be described later.

[Insulating housing and conductive contact]
On the other hand, both the above-described electrical connectors of the plug connector (mating connector) 1 and the receptacle connector 2 are elongated extending in the multipolar arrangement direction (connector longitudinal direction) of the conductive contact members (conductive terminals) 12 and 22. Insulating housings (connector body portions) 11 and 21 are provided. These conductive contact members 12 and 22 are arranged at an appropriate pitch interval along the connector longitudinal direction (perpendicular to the paper surface in FIGS. 9 to 12), and are respectively connected to the above-described upper and lower coaxial cables SC and SC. Correspondingly, two types formed in different shapes are alternately arranged in the multipolar array direction (connector longitudinal direction).

  Here, the insulating housing 11 provided on the plug connector 1 side is formed so as to extend in the connector longitudinal direction (multipolar arrangement direction), and is disposed on the inner side of the plug connector 1 to be connected to the connector main body. And a fitting projection 11b provided so as to extend from the main body support 11a toward the front side. And the ground contact GC which contacts both the above-mentioned two upper and lower ground bars GB and GB is embedded in the interior of the insulating housing 11 from the main body support portion 11a to the fitting projection 11b.

  Furthermore, the conductive contact member 12 is exposed from both the upper and lower surfaces of the insulating housing 11 at the portion from the main body support portion 11a to the fitting protrusion 11b of the insulating housing 11 described above by insert molding or press-fitting. Buried. That is, one side of the conductive contact member 12 formed so as to form two types is disposed in a state of extending substantially horizontally so as to be exposed upward from the upper surface of the insulating housing 11 (see FIGS. 10 and 10). 12), the other side of the conductive contact member 12 is arranged in a state of extending substantially horizontally so as to be exposed downward from the lower surface of the insulating housing 11 (see FIGS. 9 and 11), These two types of both conductive contact members 12 are alternately arranged in the multipolar arrangement direction (connector longitudinal direction).

  The cable center conductor (signal line) SCa in each of the upper and lower coaxial cables SC is in contact with the rear end portion of each conductive contact member 12 provided in such a plug connector (mating connector) 1 from both the upper and lower sides. In this state, each is soldered. The cable center conductor SCa and the conductive contact member 12 can be soldered together, but the coaxial cable SC is connected to the conductive contact member 12 of the plug connector 1 in this way.

  On the other hand, as described above, the upper and lower surfaces of the fitting protrusion 11b provided on the front end side of the insulating housing (connector body portion) 11 are terminal electrodes constituting the front side portion of the conductive contact member 12 described above. The part 12a is arranged so as to form a multipolar exposed electrode. Then, the terminal electrode portion 12a constituting the front side extending portion of the conductive contact member 12 has a receptacle connector 2 when the plug connector 1 is fitted to the receptacle connector (mating connector) 2 as described above. The conductive contact member 22 provided on the elastic contact is elastically contacted to form a signal transmission circuit. These conductive contact members 12 and 22 can also be configured for ground connection.

  On the other hand, the conductive contact member 22 attached to the insulating housing (connector body) 21 of the receptacle connector (mating connector) 2 has two types corresponding to the two types of conductive contact members 12 on the plug connector 1 side described above. They are arranged in a multipolar configuration. That is, one of the two types of conductive contact members 22 is disposed so as to extend above the conductive contact member 12 disposed on the upper side (see FIGS. 10 and 12), and the other The conductive contact member 22 is disposed so as to extend to the lower side of the conductive contact member 12 disposed on the lower side (see FIGS. 9 and 11). The two types of conductive contact members 22 provided on the receptacle connector 2 side are located above and below the two types of conductive contact members 12 on the plug connector 1 side when the two electrical connectors 1 and 2 are fitted together. It is made into the structure contact | abutted from both sides.

  Further, the conductive contact member 22 provided on the receptacle connector (mating connector) 2 has a rear end portion (on the right side in FIGS. 9 to 12) extending along the surface of the printed wiring board B described above. Substrate connecting legs 22a formed in such a manner are provided. In actual use, these board connection legs 22a can be collectively soldered after being placed on the signal conductive path or the ground connection conductive path on the printed wiring board B described above. is there.

  The conductive contact member 22 in the present embodiment is bent and formed so as to rise upward from the board connection leg portion 22a disposed on the rear end side described above, and forward (see FIG. 9) from the upper end portion at the rising portion. To the left side of FIG. 12). The front end portion of the conductive contact member 22 is provided with a contact convex portion 22b that protrudes in a mountain shape toward the lower side and the upper side for each of the upper and lower multipolar arrangement steps. As described above, when the plug connector 1 is fitted to the receptacle connector (mating connector) 2, the lower end side and the upper portion of the contact convex portion 22 b provided on these conductive contact members 22 are plug connector 1. It is comprised so that it may contact elastically with respect to the terminal electrode part 12a of the side conductive contact member 12. FIG. And the electrical connection of both the contact parts 12a and 22b mentioned above is performed by such elastic contact relationship.

[Conductive shell (shield shell member)]
On the other hand, the outer surfaces of the insulating housings (connector body portions) 11 and 21 provided in the plug connector (mating connector) 1 and the receptacle connector 2 are electrically conductive shells formed by bending a thin metal plate into an appropriate shape ( Shield shell members 13 and 23 are respectively covered. These conductive shells 13 and 23 are mounted as members that provide electromagnetic shielding (shielding) by covering the signal transmission circuit and the ground circuit formed inside the connectors 1 and 2. It is also a member constituting a part of the ground circuit.

  At this time, the conductive shell (shield shell member) 13 provided on the plug connector (mating connector) 1 side is constituted by a fitting body of a pair of shell piece members that sandwich the insulating housing (connector body portion) 11 from above and below. In addition, after both the ground bar parts (ground members) GB and GB are soldered to the coaxial cable SC, both of the shell piece parts of the upper half side part and the lower half side part of the conductive shell 13 are insulated housings ( The connector body 11 is mounted so as to cover from the upper side and the lower side. On the upper surface and the lower surface of the conductive shell 13, a plurality of ground connection tongues 13 a are cut out along the connector longitudinal direction which is the multipolar arrangement direction. Each of the ground connection tongues 13a is cut and raised so as to form a cantilever leaf spring projecting in an oblique direction toward the space on the inner side of the connector, with respect to the upper surface side of the ground bar GB described above. Elastically contacted or soldered.

[Receptacle connector conductive shell (shield shell member)]
On the other hand, as shown in FIGS. 1 and 2, the conductive shell (shield shell member) 23 provided in the receptacle connector 2 constitutes a connector main body together with the insulating housing 21 described above. A pair of hold-downs 23a and 23a are provided so as to face each other so that the insulating housing 21 is sandwiched from both sides in the connector longitudinal direction. That is, both the hold downs 23a and 23a are arranged so as to form the side wall portion of the conductive shell 23, and the lower end edge portion of each hold down 23a is formed on the printed wiring board B. By being solder-bonded to the ground conductive path, the ground circuit is electrically connected, and the entire receptacle connector 2 is firmly fixed.

  Further, as described above, the two hold-downs 23a and 23a arranged at both ends in the connector longitudinal direction are integrally connected by the upper shell plate 23b extending along the upper surface of the insulating housing (connector body) 21. The main portions excluding the board connection legs 22a of the conductive contacts (contact members) 22 are formed on the outer side of the printed wiring board B (upward) by the holddowns 23a, 23a and the upper shell plate 23b. From the side).

  At this time, the shield plate 24 is rotatably attached to the hold downs 23a and 23a of the conductive shell (shield shell member) 23 so as to span the hold downs 23a and 23a in the connector longitudinal direction. . The shield plate 24 is formed of a thin plate-like metal member extending in an elongated shape along the connector longitudinal direction, and is disposed on the connector rear side of the conductive contact (contact member) 22 described above. The board contact leg portion 22a of the conductive contact 22 is configured to be rotated between a position where it is covered from the rear side of the connector and a position where it is opened.

  The specific configuration of the shield plate 24 will be described. On both side portions in the connector longitudinal direction, rotational connecting plates 24a and 24a that are bent and extended substantially at right angles toward the holddowns 23a and 23a are formed. Each of the rotation connecting plates 24a is pivotally attached to the side wall portion of the conductive shell (shield shell member) 23 forming the hold down 23a. For example, holes and hold-downs 23a, 23a are formed in the rotation connecting plates 24a, 24a to form protrusions, and the holes and the protrusions are fitted together to enable a rotatable operation. I can do it. As described above, such a shield plate 24 is rotated so as to be flipped up from the “shield position” covering the board connecting leg portion 22a from the rear side of the connector (the lower side in FIG. 5) and the shield position. Thus, the substrate connecting leg 22a is reciprocally rotated between the “unshielded position” in which the board connecting leg 22a is opened.

  When such a shield plate 24 is first rotated to the “shield position”, the shield plate 24 comes close to the rear side of the board connection leg portion 22a of the conductive contact (contact member) 22. The shield plate 24 at that time is arranged so as to rise upward from the surface of the wiring board B. As a result, the board connection leg portion 22 a of the conductive contact (contact member) 22 is covered from the rear side by the shield plate 24.

  On the other hand, as described above, the main portion of the conductive contact (contact member) 22 excluding the board connection leg portion 22a is covered with the upper shell plate 23b and the hold down 23a of the conductive shell (shield shell member) 23. Therefore, when the shield plate 24 is rotated to the “shield position”, the whole of the conductive contact 22 including the board connection leg portion 22 a and the main portion is removed from the printed wiring board B by the conductive shell 23 and the shield plate 24. It is covered from the side, so that electromagnetic shielding (shielding) is performed well.

  A portion corresponding to the upper edge of the shield plate 24 arranged at this “shield position” is formed with an upper edge portion 24b that bends and extends substantially at a right angle toward the front side of the connector. The upper edge portion 24 b of the shield plate 24 extends so as to overlap the upper shell plate 23 b of the conductive shell (shield shell member) 23 from above, and the conductive shell 23 and the shield plate 24 are overlapped. As a result, the upper portion of the board contact leg 22a of the conductive contact 22 is reliably covered, and the above-described electromagnetic shielding (shielding) is performed more satisfactorily.

  On the other hand, the shield plate 24 is moved to the “non-shield position” by rotating the shield plate 24 in the “shield position” so as to jump up to the position above the upper shell plate 23b as described above. When the shield plate 24 is rotated to the “unshielded position” in this way, as shown in FIG. 1 in particular, the board connection leg portion 22a of the conductive contact (contact member) 22 faces the rear side of the connector. Open exposure.

  Furthermore, the above-described shield plate 24 has a ground conductive path formed on the surface of the printed wiring board B at the edge corresponding to the lower end when the shield plate 24 is rotated to the “shield position”. A plurality (five) of ground connection portions 24c, 24c,... That contact B1 are formed to bend and project at substantially right angles toward the rear side of the connector. Each of the ground connection portions 24c is formed so as to cut and raise the lower end edge portion of the shield plate 24, and is arranged at substantially equal intervals in the connector longitudinal direction. Each of the ground connection portions 24c is disposed so as to be in a positional relationship in contact with the surface of the printed wiring board B when the shield plate 24 is rotated to the “shield position”.

  On the other hand, a plurality (five bodies) of ground conductive paths B1, B1,... Are formed on the surface of the printed wiring board B corresponding to the ground connection portion 24c of the shield plate 24 as described above. Yes. Each of the ground conductive paths B1 is parallel to the board connecting leg portion 22a of the conductive contact (contact member) 22 of the receptacle connector 2 in the vicinity of the rear side of the connector at substantially equal intervals in the connector longitudinal direction. It is formed as follows. Each of the ground conductive paths B1 is arranged at a position corresponding to the ground connection portion 24c of the shield plate 24 as described above, and when the shield plate 24 is rotated to the “shield position”, The ground connection portion 24c of the plate 24 is arranged in contact with the above-described ground conductive paths B1 from above. As described above, the shield plate 24 is connected to the ground conductive path B1 via the ground connection portion 24c, so that a ground circuit is formed in the vicinity of the position where the shield plate 24 performs electromagnetic shielding (shielding). It will be.

[Fitting holding member]
Next, when the plug connector 1 as the mating connector is fitted into the receptacle connector 2, the plug connector (mating connector) 1 is provided as a fitting holding member as shown in FIGS. It is configured to be maintained by the fitting rotation arm 14. Further, when the plug connector 1 fitted to the receptacle connector 2 is removed from the receptacle connector 2, an operation of opening the fitting rotation arm (fitting holding member) 14 is performed, whereby both the electrical connectors 1 are used. , 2 can be removed.

  That is, the fitting rotation arm (fitting holding member) 14 is pivotally attached to the conductive shell 13 of the plug connector 1 described above, and the connector length of the fitting rotation arm 14 is long. Rotating shaft portions 14a and 14a provided at both ends in the direction are inserted into the bearing portions 13d and 13d provided at both ends in the connector longitudinal direction at the rear end portion of the conductive shell 13 so as to be freely rotatable. Has been. The pair of rotation shaft portions 14a, 14a provided on the fitting rotation arm 14 are formed so that the cross section is substantially rectangular, and constitutes the outer peripheral surface of each rotation shaft portion 14a. A biasing force of a spring restricting member 13e provided in the bearing portion 13d is applied to any flat surface, and the “fitting” described later is applied by the biasing force of the spring restricting member 13e. The rotation shaft portion 14a is lightly held at the “open / close position” and “fitting operation position”.

  Further, the connecting arm portion 14b extends from the outer end portion of the rotating shaft portion 14a in the connector longitudinal direction so as to extend substantially along the rotating radius direction, and the extending end of the connecting arm portion 14b is extended. The tip portions on the rotating side, which are portions, are integrally connected by a rotating operation portion 14c extending substantially linearly along the connector longitudinal direction. Then, when the operator holds a part of the rotation operation portion 14c and applies an appropriate turning force, the entire fitting rotation arm 14 is shown in the “fitting release position” shown in FIG. ”And the“ fitting operation position ”shown in FIG. 4.

  At this time, the conductive shell (shield shell member) 23 provided in the receptacle connector (mating connector) 2 is fitted with the fitting rotation arm (fitting holding member) 14 rotated to the “fitting operation position”. Lock portions 23c to which the connecting arm portions 14b are lightly fitted are provided so as to project outward from both side portions of the upper shell plate 23b in the connector longitudinal direction. As described above, when the fitting rotation arm 14 is rotated to the vicinity of the “fitting operation position” in a state where the plug connector (mating connector) 1 is fitted to the receptacle connector 2, the fitting is performed. The connecting arm portion 14b provided on the combined rotation arm 14 is rotated so as to get over the outward projecting portion of the lock portion 23c. In this way, immediately after the connecting arm portion 14b of the fitting rotation arm 14 gets over the locking portion 23c, the locking portion 23c is elastically applied to the upper surface side of the connecting arm portion 14b of the fitting rotation arm 14. Thus, the entire fitting rotation arm 14 is elastically held at the “fitting operation position”. In this manner, when the plug rotation arm 14 is rotated from the “fitting release position” to the “fitting operation position” in a state where the plug connector 1 is fitted to the receptacle connector (mating connector) 2, Both electrical connectors 1 and 2 are configured to be held in a fitted state without separation.

  Further, the turning operation portion 14c of the fitting turning arm (fitting holding member) 14 when turned to the “fitting operation position” is located above the ground connection portion 24c of the shield plate 24 described above. It arrange | positions so that it may adjoin.

  According to the embodiment of the present invention having such a configuration, the shield plate 24 rotatably attached to the conductive shell (shield shell member) 23 is connected to the board connection leg of the conductive contact (contact member) 22. By retreating from the “shield position” (see FIG. 2) that covers the portion 22a to the “non-shield position” (see FIG. 1) that exposes the board connection leg portion 22a to the outside, The board connection leg portion 22a of the contact 22 is opened, and the connection state of the conductive contact 22 to the conductive path on the printed wiring board B is made visible.

  On the other hand, the shield plate 24 that has been bounced upward and moved to the “non-shield position” is rotated downward again to cover the board connection leg portion 22a of the conductive contact 22 “shield position”. The board connection leg portion 22a is covered from the outer side of the printed wiring board B by the shield plate 24. That is, electromagnetic shielding (shielding) with respect to the board connection leg portion 22a is reliably performed by a simple operation of rotating the shield plate 24.

  Further, according to the present embodiment, the shield plate 24 is rotated to the lower “shield position”, thereby performing electromagnetic shielding (shielding) for the board connection leg portion 22a of the conductive contact 22, and at the same time, the shield plate. 24 is connected to the ground conductive path B1 disposed in the vicinity of the board connection leg portion 22a of the conductive contact 22, so that the ground connection is made in the vicinity of the portion where electromagnetic shielding is performed. As a result, the electrical resistance of the ground circuit for electromagnetic shielding is reduced, and good electromagnetic shielding characteristics can be obtained.

  In the above-described embodiment, the ground connection portion 24c provided on the shield plate 24 is solder-bonded to the printed wiring board B, but may be fixed by a mechanical coupling means such as a fixing screw. it can. Further, if the ground connection portion 24 of the shield plate 24 at this time includes a plurality of leaf spring-like members that elastically contact the ground conductive path B1, the electrical connection state is improved. Therefore, the characteristics of electromagnetic shielding (shielding) are further improved.

  Further, according to the present embodiment, the receptacle connector 2 is rotated to the “shield position” by rotating the shield plate 24 of the receptacle connector 2 before the plug connector 1 as the mating connector is fitted to the receptacle connector 2. The two conductive contacts 22 are covered with the shield plate 24 to be in a protected state, and foreign substances such as solder materials are prevented from adhering to the conductive contacts 22 and a good electrical connection is ensured.

  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, in the above-described embodiment, the entire conductive contact (contact member) 22 is covered from the outer side of the printed wiring board B by both the shield plate 24 and the conductive shell (shield shell member) 23. When the present invention is applied to an electrical connector that does not include a conductive shell, the shield plate 24 alone can be configured to cover the entire conductive contact 22 from the outside of the printed wiring board B. .

  In the above-described embodiment, a configuration in which the shield plate is rotated is employed, but a configuration in which the shield plate is linearly reciprocated can also be employed.

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

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

1 Plug connector (mating connector)
11 Insulation housing (connector body)
11a body support 11b fitting protrusion 12 conductive contact (contact member)
12a Terminal electrode part 13 Conductive shell (connector body part)
13a Ground connection tongue 13d Bearing 13e Spring restricting member 14 Fitting rotation arm (fitting holding member)
14a Rotating shaft portion 14b Connecting arm portion 14c Rotating operation portion GB ground bar GC ground contact SC coaxial cable SCa cable center conductor (signal line)
SCb Cable outer conductor (shielded wire)
2 Receptacle connector 21 Insulation housing (connector body)
22 Conductive contact (contact material)
22a Circuit board connection leg 22b Contact convex part 23 Conductive shell (connector body part)
23a Hold-down 23b Upper shell plate 23c Lock portion 24 Shield plate 24a Rotating connecting plate 24b Upper edge portion 24c Ground connection portion B Printed wiring board B1 Ground conductive path

Claims (6)

A connector body portion to which a mating connector is fitted in a state of being mounted on a wiring board,
In the electrical connector, the contact member attached to the connector main body has a board connection leg connected to the conductive path on the wiring board.
The connector main body is provided with a shield plate that covers the board connection leg of the contact member ,
The shield plate, the shield position to cover the board connection leg of the contact member from the outer side of the wiring board, can reciprocate between an unshielded position for exposing the substrate connecting legs outward of the wiring substrate As well as
A ground conductive path is formed at a position in the vicinity of the board connection leg portion on the surface portion of the wiring board, and
The shield plate is provided with a ground connection portion connected to the ground conductive path,
The electrical connector , wherein the ground connection portion is connected to the ground conductive path when the shield plate is moved to the shield position . The ground connection of the shield plate, the electrical connector according to claim 1, wherein with respect to the wiring board, characterized in that it is secured by solder bonding or mechanical coupling means. A shield shell member that covers the outer surface of the connector main body is attached to the connector main body,
2. The electrical connector according to claim 1, wherein the shield member and the shield plate cover the entire contact member including the board connecting leg from the outer side of the wiring board. .   The electrical connector according to claim 1, wherein the shield plate is formed so as to cover the entire contact member including the board connection leg portion from the outer side of the wiring board. The mating connector is provided with a fitting holding member that maintains the mating state of the mating connector,
The said fitting holding member is comprised so that it can reciprocate between the position which maintains the said fitting state, and the position which cancels | releases the said fitting state. Electrical connector. The electrical connector according to claim 5, wherein the connector main body portion is provided with a lock portion that holds the fitting holding member at a fitting action position.

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