JP2024018095A - Plug connectors, receptacle connectors, and connector sets - Google Patents

Abstract

An object of the present invention is to reduce the size and size of a connector by using a shell member to perform fitting connection of the connector. A plug connector PC includes a plug shell part 40 formed of a conductive plate surrounding the cable holding part, and a plurality of plug contacts 25. The receptacle connector includes a shell receiving portion that receives a plug shell portion, a plug receiving portion that receives a plug connection portion, and a plurality of receptacle contacts disposed in the plug receiving portion. The plug shell portion is inserted into the shell receiving portion, the plug connecting portion is inserted into the plug receiving portion, and the plug contact is brought into abutting connection with the receptacle contact, thereby fitting and connecting both connectors. The plurality of plug contacts are provided with portions extending to the plug connection portion arranged in a horizontal direction thereon, and a plug shell portion extending to the plug connection portion and positioned between the plurality of plug contacts thereon. It has a plurality of ground contacts arranged integrally. [Selection diagram] Figure 1

Description

The present invention relates to electrical connectors, such as plug connectors, receptacle connectors, and connector sets, which are provided at the tip of an electric cable and used for electrical connection, and in particular, the part to which the tip of the electric cable is connected is covered with a metal shell. ELECTRICAL CONNECTOR CONTAINING.

Electrical connectors are commonly used to connect electrical cables to a mating device (eg, a wiring board or a mating electrical cable). Recently, many electrical connectors transmit small signal power, and there is a trend toward miniaturization by arranging a large number of contacts at a small pitch. At this time, a metal shell is often provided around the outer periphery of the connector in order to prevent crosstalk between contacts and the intrusion of noise signals from the outside. In particular, when a coaxial cable is used as an electric cable, a shield wire surrounding a signal line is electrically connected to a metal shell to prevent crosstalk and noise from entering. As an example of this, for example, Patent Document 1 discloses a coaxial cable connector including a metal shell.

Japanese Patent Application Publication No. 2008-146954

An electrical connector used to connect an electrical cable to a counterpart device is an electrical connection that is made by fitting the electrical connector installed at the end of the electrical cable with the counterpart electrical connector installed at the destination, and bringing the contacts into contact with each other. The configuration is such that At this time, a cable holding part that holds multiple electric cables side by side is covered with a shell member, a connecting part is provided on the tip side of the cable holding part that holds contacts connected to the signal wires of each electric cable side by side, and the connecting part is connected to the mating connector. It is configured to fit with the fitting part of. As a result, each contact held in the connecting portion comes into contact with a mating contact disposed in the fitting portion of the mating connector to be electrically connected.

The configuration in which an electrical connector is mated and connected to a mating electrical connector in this way is generally performed by fitting the connecting part holding the contacts to the part of the mating connector holding the contacts. Since the shell member is located on the rear side of the connector, there is a problem that the connector tends to become larger. Further, the shell member is grounded (earthed) to prevent noise from entering from the outside, and a mating electrical connector is often also provided with a shell member and grounded. In that case, when both connectors are mated and connected, the shell members of both connectors also come into contact and make an electrical connection, and one of the shell members (or both shell members) is grounded to prevent noise from entering. It is desirable to have a configuration that allows for Further, as described above, there is a tendency for recent electrical connectors to be miniaturized by arranging a large number of contacts at a small pitch, and it is also required to prevent crosstalk between the contacts.

The present invention has been made in view of the above circumstances and problems, and is designed to prevent noise from entering the inside of the connector by fitting and connecting the connectors by fitting and connecting the shell members of both connectors. It is an object of the present invention to provide an electrical connector for a cable (a plug connector, a receptacle connector, and a connector set) that can effectively prevent crosstalk between contacts.

In order to achieve the above object, an electrical connector for a cable according to the present invention is a plug connector that is fitted and connected to a receptacle connector, and includes a cable holding part that holds a plurality of electrical cables side by side on the rear side, and the cable holding part. a plug housing made of an insulating material and having a plug connection part connected to the front part of the plug housing; a plug shell part formed by a conductive plate at least partially surrounding at least the cable holding part; A plurality of plug contacts are connected to the signal lines of the plurality of electric cables held in the cable holding part and extend to the plug connection part, and the receptacle connector has a rear end side. A shell receiving part formed of a conductive plate that opens and receives the plug shell part, a plug receiving part that receives the plug connection part, and a plurality of receptacle contacts arranged in the plug receiving part. by inserting the plug shell part into the shell receiving part, inserting the plug connecting part into the plug receiving part, and abuttingly connecting the plurality of plug contacts with the plurality of receptacle contacts, The plurality of plug contacts are configured to fitly connect the plug connector to the receptacle connector, and the plurality of plug contacts are provided with portions extending to the plug connection portion arranged in a horizontal direction above the plug connection portion; A plug shell portion extends to the plug connection portion and integrally includes a plurality of ground contacts disposed above the plug connection portion and between the plurality of plug contacts.

In the above plug connector, preferably, when the plug connecting portion is inserted into the plug receiving portion and the plug connector is fitted and connected to the receptacle connector, the plurality of receptacle contacts are connected to the plug contact and the ground contact. Selective butt connection.

In the above plug connector, preferably, at least one surface of the plug shell portion has a cantilevered folded plate formed by folding back a conductive plate forming the plug shell portion at the front end side and extending toward the rear side. The elastic deformation force of the folding plate acts as a fitting force when inserting the plug shell part into the shell receiving part and fitting the plug connector to the receptacle connector.

In the above plug connector, preferably, the folding plate is provided with a locking projection that projects outward, and when the plug connector is fitted and connected to the receptacle connector, the locking projection is attached to the shell receiving portion. Opposed to the formed locking hole, the locking protrusion enters into the locking hole due to outward elastic deformation of the folding plate, and the plug connector is locked and held in a state where it is fitted and connected to the receptacle connector. do.

In the above plug connector, preferably, an operating portion exposed outward is provided at the rear end of the folding plate, and the operating portion is operated to elastically deform the folding plate, and the locking protrusion and the The engagement with the locking hole can be released.

A receptacle connector according to the present invention is a receptacle connector that is fitted and connected to the above-described plug connector, and includes a shell receiving portion that is open at the rear end side and receives the plug shell portion, and a plug receiving portion that receives the plug connection portion. and a plurality of receptacle contacts disposed in the plug receiving part, the plug shell part being inserted into the shell receiving part, and the plug connecting part being inserted into the plug receiving part. , selectively abutting and connecting the plurality of plug contacts with the plurality of receptacle contacts and the plurality of ground contacts, and fittingly connecting the plug connector with the receptacle connector.

The receptacle connector preferably includes a receptacle shell portion made of a conductive material forming the shell receiving portion, and a receptacle housing portion made of an insulating material forming the plug receiving portion, wherein the receptacle housing portion receptacle contacts are retained.

Further, a connector set according to the present invention is comprised of the above-mentioned plug connector and the above-mentioned receptacle connector.

According to the plug connector of the present invention, the plug shell portion is inserted into the shell receiving portion, the plug connecting portion is inserted into the plug receiving portion, and the plug connector is fitted and connected to the receptacle connector. The plurality of plug contacts are configured such that portions extending to the plug connection portion are arranged horizontally above the plug connection portion, and the plug shell portions extend to the plug connection portion and are arranged horizontally on the plug connection portion. A plurality of ground contacts are integrally arranged above the plug connection part and between the plurality of plug contacts. In this way, since the plug contacts are sandwiched between the ground contacts above the plug connection portion, crosstalk of signals between adjacent plug contacts can be effectively prevented. Note that the plug shell portion formed of a conductive plate is configured to at least partially surround the cable holding portion, so that it is possible to effectively prevent noise from entering from the outside.

In the above plug connector, when the plug connecting portion is inserted into the plug receiving portion and the plug connector is fitted and connected to the receptacle connector, the plurality of receptacle contacts are selectively connected to the plug contact and the ground contact. It is preferable to adopt a configuration in which the contact connection is made. In this way, the receptacle contact that is connected in contact with the plug contact is used as a signal transmission line, and the receptacle contact that is connected in contact with the ground contact is grounded (grounded), and the cross between the signal transmission lines is connected. Talk can be effectively prevented.

In the above plug connector, a cantilevered folding plate extending rearward is provided on at least one surface of the plug shell portion, and the elastic deformation force of the folding plate inserts the plug shell portion into the shell receiving portion. Preferably, the plug connector is configured to act as a fitting force when fitting the plug connector with the receptacle connector. In this way, when both connectors are mated and connected, the shell members of both connectors will come into contact and make an electrical connection, and one of the shell members (or both shell members) will be grounded to prevent noise from entering. can be achieved effectively. At this time, due to the elastic deformation of the folding plate, the fitting connection between the shell members of both connectors can be stably maintained, and furthermore, the plug shell part can also be used for fitting with the receptacle connector, and the fitting connection can be maintained stably. Improved stability.

In the above plug connector, the folding plate is provided with a locking protrusion that projects outward, and when both connectors are fitted and connected, the locking protrusion faces the locking hole formed in the shell receiving part. The locking protrusion enters the locking hole due to outward elastic deformation of the folding plate, and the plug connector is locked and held in a state in which it is fitted and connected to the receptacle connector. preferable. In this way, the plug shell part is also used for fitting with the receptacle connector, and the folding plate used for this fitting is provided with a locking protrusion projecting outward, and the locking protrusion is used to lock the plug shell. Since the mechanism can be configured, the plug connector can be made smaller and more compact.

In this case, an operating section is provided at the rear end of the folding plate and is exposed to the outside, and the operating section is operated to elastically deform the folding plate so that the locking protrusion and the locking hole are connected to each other. Preferably, the engagement is removable. Thereby, the lock of the fitted connection state of both connectors can be easily released by operating the operating section with a finger or the like.

According to the receptacle connector according to the present invention, that is, the receptacle connector that is fitted and connected to the plug connector, the plug shell portion is inserted into the shell receiving portion, the plug connecting portion is inserted into the plug receiving portion, and the plug shell portion is inserted into the shell receiving portion, and the plug connecting portion is inserted into the plug receiving portion. , selectively abutting and connecting the plurality of plug contacts with the plurality of receptacle contacts and the plurality of ground contacts, and fittingly connecting the plug connector with the receptacle connector. For this reason, the receptacle contact that is connected in contact with the plug contact is used as a signal transmission line, and the receptacle contact that is connected in contact with the ground contact is grounded (grounded) to prevent crosstalk between the signal transmission lines. Can be effectively prevented. Also, when both connectors are mated and connected, the shell members of both connectors come into contact and make an electrical connection, and one of the shell members (or both shell members) is grounded, effectively preventing noise from entering. can be achieved.

The receptacle connector has a receptacle shell part made of a conductive material forming the shell receiving part, and a receptacle housing part made of an insulating material forming the plug receiving part, and the receptacle housing part contacts the plurality of receptacles. It is preferable to adopt a configuration in which the receptacle connector is held, and the receptacle connector can be grounded to effectively prevent noise from entering from outside.

Since the connector set according to the present invention is composed of the above-mentioned plug connector and receptacle connector, the same effects as those of the plug connector and receptacle connector can be obtained.

FIG. 1 is a front view of a plug connector according to an embodiment of the present invention. FIG. 3 is a rear view of the plug connector. It is a top view of the said plug connector. It is a bottom view of the said plug connector. It is a side view of the said plug connector. FIG. 3 is a side sectional view of the plug connector. FIG. 2 is a perspective view showing the structure of a coaxial cable. FIG. 2 is a perspective view of a coaxial cable assembly. FIG. 1 is a front view of a receptacle connector according to an embodiment of the present invention. FIG. 3 is a rear view of the receptacle connector. It is a top view of the said receptacle connector. It is a bottom view of the said receptacle connector. It is a side view of the said receptacle connector. FIG. 3 is a side sectional view of the receptacle connector. It is a sectional view showing the state where the above-mentioned plug connector and the above-mentioned receptacle connector were made to fit. FIG. 3 is a front perspective view of the plug connector. FIG. 3 is a rear perspective view of the plug connector. It is an exploded perspective view of the inside of the above-mentioned plug connector. It is a front view (A) and a back view (B) which show the assembly stage of the said plug connector. FIG. 3 is a perspective view showing an assembly stage of the plug connector. FIG. 3 is a perspective view showing a completed stage of assembly of the plug connector. It is a perspective sectional view of the above-mentioned plug connector. FIG. 3 is a partial cross-sectional view showing the internal structure excluding the plug housing in order to explain the function of the plug connector. FIG. 3 is an exploded perspective view of the receptacle connector. FIG. 3 is a front perspective view of the receptacle connector. FIG. 3 is a rear perspective view of the receptacle connector. FIG. 3 is a rear perspective cross-sectional view of the receptacle connector. FIG. 3 is a perspective view showing a step of fitting and connecting the plug connector to the receptacle connector attached to the board. It is a perspective sectional view showing the state where the above-mentioned plug connector is fitted and connected to the above-mentioned receptacle connector attached to the board.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. First, a plug connector PC according to the present invention will be explained with reference to FIGS. 1 to 6. In the following explanation, for convenience of explanation, front and back, left and right, and up and down directions are referred to as front (F), rear (B), right (R), left (L), top (U), and bottom (D). This will be explained using arrows in the figure. Further, in the claims as well, the configuration is defined using these directions. However, the electrical connectors (plug connectors, receptacle connectors, and connector sets) that are the subject of the present invention have no directionality in their usage, and these directions are only defined for the convenience of explanation.

The plug connector PC includes a plug rear part 10 connected to a plurality of coaxial cables 2 on the rear side, and a plug front part 20 connected to the front part of the plug rear part 10. As shown in FIG. 8, the plurality of coaxial cables 2 are lined up in the horizontal direction and sandwiched between a pair of upper and lower ground bars 7, 7 to form a coaxial cable assembly 1, as shown in FIGS. 18 and 19. , is attached to the cable holding part 11 that constitutes the plug rear part 10.

First, the coaxial cable 2 will be explained with reference to FIG. 7. The coaxial cable 2 has an inner insulation sheath 4 made of an insulating material around a core wire 3 (signal wire) made by twisting a plurality of ultra-thin wires, and the outer circumference of the inner insulation sheath 4 has ultra-thin A shielded wire 5 formed by winding an electric wire horizontally into a cylindrical shape is provided, and an outer peripheral insulation coating 6 made of an insulating material is provided on the outer periphery of the shielded wire 5. A plurality of coaxial cables 2 have their outer insulation sheaths 6 peeled off to expose the shield wires 5, and furthermore, their inner insulation sheaths 4 are slightly exposed at their tips, and their core wires 3 are protruding from their tips. As shown in FIG. 8, a coaxial cable assembly 1 is constructed by connecting a pair of upper and lower conductive ground bars 7, which are arranged horizontally in a flat plate shape and covering the shield wire 5, from above and below. As a result, the upper and lower ground bars 7, 7 are electrically connected to the shield wire 5.

The plug rear part 10 is provided with a cable holding part 11 made of insulating material as shown in FIG. A plug connection part 21 made of an insulating material is provided integrally connected to the front part of the cable holding part 11 to constitute a plug front part 20 . Note that the cable holding portion 11 and the plug connecting portion 21 are integrated to form a plug housing. The cable holding section 11 has left and right side walls 12, 12, a bottom wall 13, and a partition wall 14, and a receiving recess 15 is formed surrounded by these three walls and open at the upper and rear sides. The coaxial cable assembly 1 is disposed within this receiving recess 15 as shown in FIGS. 19(A) and 19(B). The plug connection part 21 is integrally connected to the partition wall 14 and extends forward, and has left and right side walls 22 , 22 and a mounting wall 23 . On this mounting wall 23, a plurality of signal contacts 25 and a plurality of ground contacts 35 are arranged alternately in line as shown in FIG. As shown in FIG. 6, the signal contact 25 extends through the partition wall 14 to above the lower wall 13 of the cable holding section 11, and is joined to the core wire 3 of the coaxial cable 2 at this portion.

As can be seen from FIGS. 22 and 23, the ground contact 35 is formed as a portion extending from the lower plug shell member 30 that is insert-molded together with the plug housing and attached to the lower surface thereof. Note that the signal contact 25 is also integrally molded when the plug housing is molded. The lower surface side plug shell member 30 further includes an exposed portion 31 exposed on the lower surface of the plug housing (lower surface of the cable holding portion 11), the ground contact 35 extending from the exposed portion 31 and exposed on the upper surface of the mounting wall 23, and It has an exposed portion 32 that is folded back at the front end of the ground contact 35 and exposed to the lower surface side of the mounting wall 23. The lower plug shell member 30 further includes a rear end portion 34 connected to the rear end of the exposed portion 31 and provided within the housing 11, and side portions 33 that stand up on both left and right sides and extend back and forth.

As described above, when the coaxial cable assembly 1 is arranged in the receiving recess 15 of the cable holding part 11 as shown in FIGS. 19(A) and (B), next, as shown in FIGS. As shown, a top side plug shell member 40 is mounted over the cable retainer 11 and the coaxial cable assembly 1. The upper plug shell member 40 is formed from a plate made of a conductive material, and includes a plate-shaped substrate portion 41 that is directly attached to the coaxial cable assembly 1, and a folding plate that is folded back at the front end 40a of the substrate portion 41 and extends rearward. and an upper plate portion 45 consisting of. Attachment holes 42 are formed through the board portion 41 at two locations in a portion that covers the ground bar 7 of the coaxial cable assembly 1, and the inner ends of the mounting holes 42 are soldered to the ground bar 7 to attach the board. The portion 41 is joined to the coaxial cable assembly 1.

The rear end of the base plate part 41 is bent upward at two places, and the tip thereof is bent forward to form a stopper 43. In this way, the stopper 43 is composed of an upwardly bent portion 43a and a locking portion 43b bent forward. Further, the left and right ends of the rear end portion of the substrate portion 41 are bent downward to form a joint portion 44 . As shown in FIG. 23, the joint portion 44 comes into contact with the side surface portion 33 of the lower plug shell member 30 from both sides thereof. As a result, the lower plug shell member 30 and the upper plug shell member 40 constitute a plug shell member that surrounds the outer periphery of the coaxial cable assembly 1 that is positioned within the receiving recess 15 of the cable holding portion 11 and attached. Note that this plug shell member constitutes the plug rear part 10 together with the cable holding part 11.

The upper plate part 45 has a joining opening 46 at a location opposite to the mounting hole 42 formed in the substrate part 41, and the mounting hole 42 is exposed on the upper surface side through this joining opening 46. Therefore, the inner end of the attachment hole 42 can be soldered and joined to the ground bar 7 through this joining opening 46. A locking protrusion 47 that projects upward is formed on the upper surface of the center portion of the upper plate portion 45 . Further, the rear end of the upper plate portion 45 on the center side in the width direction is bent upward to form an operating portion 49 . The upper plate part 45 is connected to the base plate part 41 at the front end part 40a, extends upward away from the base plate part 41 in a substantially parallel manner, and has a shape that extends rearward in a cantilevered manner. Therefore, the upper plate portion 45 can be elastically deformed vertically around the front end portion 40a. An operating portion 49 is formed to perform this vertical elastic deformation, and by pushing or pulling the operating portion 49 with a fingertip or the like, the upper plate portion 45 can be elastically deformed vertically.

At the rear end of the upper plate part 45, the left and right sides of the operation part 49 are cut out to form contact parts 48 bent upward, and these left and right contact parts 48 are respectively connected to the left and right sides of the base plate part 41. It is located below the stopper 43, and faces the locking portion 43b of the stopper 43 with a short distance vertically therebetween. This configuration prevents the upper plate portion 45 from excessively deforming upward and plastically deforming when the operating portion 49 is pulled up. Furthermore, upper surface convex portions 45a that slightly protrude toward the upper surface in a cylindrical shape are formed at four locations on the upper surface of the upper plate portion 45. These upper surface convex portions 45a are commonly called "dowels," and as will be described later, when the plug connector PC is fitted and connected to the receptacle connector RC, these upper surface convex portions 45a are placed above the receptacle shell member 50. It abuts against the inner surface of the face plate portion 51 to ensure abutting connection between the upper plug shell member 40 and the receptacle shell member 50 (an electrical connection for grounding them).

Next, a receptacle connector RC according to the present invention will be described with reference to FIGS. 9 to 14. As can be seen from the exploded perspective view of FIG. 24, the receptacle connector RC includes a receptacle shell member 50 made of a plate made of a conductive material, and a receptacle housing 60 made of an insulating material attached to the front part of the receptacle shell member 50. , and a plurality of receptacle contacts 70 installed in the receptacle housing 60 side by side.

The receptacle shell member 50 is formed into a hollow rectangular shape extending back and forth from an upper surface plate portion 51, a lower surface plate portion 52, and left and right side plate portions 53 and 54. As shown in FIG. 27, the lower surface plate portion 52 is folded back at a folded portion 55a at the rear end portion and extends upward and forward to form a holding plate portion 55, and has a U-shape in side view. A plurality of slits are provided in the folded portion 55a, and a plurality of contact arms 56 which are folded back and extend forward in a cantilevered manner are provided. The contact arm 56 is provided with a contact portion 56a that projects upward. This receptacle shell member 50 is joined to the receptacle housing 60 by insert molding or the like at the front end portions of the upper surface plate portion 51, the lower surface plate portion 52, and the retaining plate portion 55. Further, a locking hole 57 is formed through the center of the rear portion of the upper surface plate portion 51 .

The receptacle housing 60 has a main body portion 61 and a lower connecting portion 62 that is integrally coupled with the lower plate portion 52 of the receptacle shell member 50. With the receptacle shell member 50 attached to the receptacle housing 60 by insert molding or the like as described above, the main body portion 61 closes the rectangular internal space of the receptacle shell member 50 at the front end, and forms a shell receiving space with an open rear end. form 58. Further, on the front side of the shell receiving space 58, the lower part of the main body part 61 is recessed forward to form a plug receiving space 65 between it and the front part of the holding plate part 55 of the receptacle shell member 50. Furthermore, positioning protrusions 68 for mounting a board are provided on the left and right sides of the front end surface of the main body part 61.

The plurality of receptacle contacts 70 are press-fitted into contact mounting holes formed side by side in the main body part 61 of the receptacle housing 60, and the contact part 71 located at the rear end is exposed in the plug receiving space 65. There is. Note that the contact portion 71 can be elastically deformed in the direction of protruding into the plug receiving space 65. The front portion of each receptacle contact 70 passes through the receptacle housing 60, projects forward, and is bent at a right angle to form a mount lead 72. This mount lead 72 is bonded (surface mounted) to the signal pattern of the substrate 80.

The receptacle connector RC configured as described above is attached to, for example, the board 80 vertically as shown in FIGS. 28 and 29. In other words, the front end of the receptacle connector RC is attached to the upper surface of the board 80. At this time, the positioning protrusion 68 fits into the positioning hole (not shown) of the board 80 to determine the mounting position, and the front end of the receptacle shell member 50 is soldered to the mounting pattern (grounded) of the board 80. Fixed. At the same time, the mount lead 72 is bonded (surface mounted) to the signal pattern of the substrate 80.

Next, the operation of fittingly connecting the plug connector PC having the above configuration to the receptacle connector RC will be described with reference to FIGS. 15, 28, and 29. Here, an example will be described in which a receptacle connector RC is attached to the board 80 in a standing position, and a plug connector PC to which the cable assembly 1 is connected is fitted and connected to the receptacle connector RC.

First, as shown in FIG. 28(A), the plug connector PC is fitted from above the receptacle connector RC provided upright on the board 80. At this time, the plug rear part 10 of the plug connector PC is inserted into the shell receiving space 58 of the receptacle connector RC with the plug front part 20 facing down. At this time, the outer dimensions of the plug rear part 10 (the outer dimensions formed by the lower plug shell member 30 and the upper plug shell member 40) are slightly larger than the inner dimensions of the shell receiving space 58. Therefore, the upper plate part 45 of the upper plug shell member 40 contacts the inner surface of the upper plate part 51 of the receptacle shell member 50, and is pushed inward and elastically deformed, while the plug rear part 10 of the plug connector PC is inserted into the receptacle. It enters into the shell receiving space 58 of the connector RC. At the same time, the lower surface of the plug connector PC (the surface where the lower plug shell member 30 is exposed) comes into contact with the holding plate portion 55 and the contact arm 56 of the receptacle shell member 50. This contact serves as an insertion guide, making it possible to fit the two together smoothly.

In the middle of the insertion, the plug front portion 20 of the plug connector PC enters into the plug receiving space 65. When the plug rear part 10 enters the shell receiving space 58 and the plug front part 20 is completely inserted into the plug receiving space 65, the locking protrusion 47 of the upper plate part 45 of the upper plug shell member 40 Due to the elastic deformation of the upper plate part 45, the upper plate part 45 enters the locking hole 57 of the upper plate part 51 of the receptacle shell member 50 (see FIG. 28(B)), and is locked and held in this fitted state. Note that by pressing down the operating part 49 from this state with a finger or the like, the upper plate part 45 is elastically deformed downward, the locking protrusion 47 can be removed from the locking hole 57, and the lock can be released. Then, the plug connector PC can be pulled out from the receptacle connector RC.

When the plug front part 20 enters into the plug receiving space 65, the contact part 71 of the receptacle contact 70 protruding into the plug receiving space 65 connects with the plug contact 25 provided in the plug connecting part 21 constituting the plug front part 20. It comes into contact with the ground contact 35. The contact force of this contact is obtained by elastic deformation of the contact portion 71, and the elastic force of the contact arm 56 of the receptacle shell member 50 pushes the plug contact portion 21 toward the contact portion 71, causing the contact portion 71 and the plug contact 25 and the ground contact 35 to ensure abutting connection.

As shown in FIGS. 1 and 16, the horizontal width of the ground contact 35 is larger than the horizontal width of the plug contact 25, so that one contact portion 71 of the receptacle contact 70 comes into contact with one plug contact 25, and the two contact portions 71 comes into contact with the ground contact 35. Therefore, the ground contact 35 located at the rightmost end in FIG. The ground contact 35 on the left side contacts the contact portion 71 of the third and fourth receptacle contacts 70, and the plug contact 25 on the left side contacts the contact portion 71 of the fifth receptacle contact 70 from the left. It comes into contact with the contact portion 71 . Thereafter, the contact relationship is similar, and the contact portions 71 of the receptacle contacts 70 have a connection relationship of GSGGSGGS...SGGSG in order from the right end. Note that the symbol G indicates a contact relationship with the ground contact 35, and the symbol S indicates a contact relationship with the plug contact 25.

As described above, when fitting and connecting the plug connector PC to the receptacle connector RC, first, the plug rear part 10 of the plug connector PC is inserted into the shell receiving space 58 of the receptacle connector RC, and from an intermediate stage, the plug connector PC The plug front portion 20 of the plug is configured to enter into the plug receiving space 65. Therefore, it is possible to insert the plug rear part 10 into the shell receiving space 58 at the initial stage of insertion to guide the insertion, and then simply to continue inserting the plug, so that the plug front part 20 can be accurately inserted into the plug receiving space 65. can. Further, when the fitting is completed, the locking protrusion 47 enters into the locking hole 57 due to the elastic deformation of the upper plate portion 45, so that the fitted state can be locked and maintained. Furthermore, in the fitted state, the plug rear part 10 is held in the shell receiving space 58 to maintain the fit, so the contact of the receptacle contact 70 is made by the plug front part 20 entering the plug receiving space 65. The contact connection between the portion 71 and the plug contact 25 and the ground contact 35 can be firmly maintained.

Note that the plug connector PC has a cable assembly 1 attached to the rear part 10 of the plug, and the cable 2 of the plug connector PC may be subjected to an external force that tilts the plug connector PC in a lateral direction with respect to the receptacle connector RC, such as when the cable 2 is pushed. be. In this case, since the upper plate part 45 has a structure that elastically deforms with respect to the main body part (the part other than the upper plate part 45 in the plug connector PC), the main body part of the plug connector PC swings within the shell receiving space 65. Even if the upper plate portion 45 is elastically deformed, the state in which the locking protrusion 47 enters the locking hole 57 is maintained, thereby preventing the locking state from being released.

Further, as can be seen from the configuration described above, the upper plug shell member 40 of the plug connector PC has its board portion 41 joined to the ground bar 7, and is connected to the shield wire 5 of the coaxial cable 2. The upper plug shell member 40 has a joint portion 44 in contact with the side surface 33 of the lower plug shell member 30 . When the plug connector PC is fitted and connected to the receptacle connector RC, the upper plate portion 45 of the upper plug shell member 40 is abutted and connected to the upper plate portion 51 of the receptacle shell member 50, and the lower plug shell member 30 is exposed. The portion 31 is abuttingly connected to the contact arm 56 of the receptacle shell member 50 . Note that, as described above, the upper surface convex portion 45a formed on the upper surface of the upper plate portion 45 comes into contact with the inner surface of the upper surface plate portion 51 of the receptacle shell member 50, and the upper surface side plug shell member 40 and the receptacle shell member 50 Make sure to make a contact connection with. Further, with the receptacle connector RC attached to the board 80, the front end of the receptacle shell member 50 is connected to the ground pattern of the board 80 and grounded. Therefore, the shield wire 5 of the coaxial cable 2, the upper plug shell member 40 and the lower plug shell member 30 of the plug connector PC, and the receptacle shell member 50 of the receptacle connector RC are grounded to effectively prevent noise from entering from outside. prevent it from happening. By the way, instead of the upper surface convex portion 45a, an inner surface convex portion that slightly protrudes inward is formed on the inner surface of the upper surface plate portion 51 of the receptacle shell member 50, and the upper surface side plug shell member 40 and the receptacle shell member 50 are It may also be possible to ensure abutting connection between the two.

As described above, if the cable 2 of the cable assembly 1 attached to the plug rear part 10 of the plug connector PC is pushed, the plug connector PC may receive an external force that tilts it in a lateral direction with respect to the receptacle connector RC. There is. Even if the main body portion of the plug connector PC swings within the shell receiving space 65 due to this external force, the upper plate portion 45 is elastically deformed and the contact connection with the upper surface plate portion 51 of the receptacle shell member 50 is maintained. Ru. Furthermore, the contact arm 56 of the receptacle shell member 50 is also elastically deformable, so that even if the main body of the plug connector PC swings within the shell receiving space 65 due to external force such as when the cable 2 is stirred, the lower surface side The abutting connection between the exposed portion 31 of the plug shell member 30 and the contact arm 56 of the receptacle shell member 50 is also maintained. As a result, the above-described ground connection is reliably maintained, and the effect of preventing noise from entering the connector connection portion from entering the connector connection portion from entering the connector connection portion from outside is not impaired.

Further, one contact portion 71 of the receptacle contact 70 is in contact with one plug contact 25, and two contact portions 71 are in contact with the ground contact 35, and the contact portions 71 of the receptacle contact 70 are arranged from the right end to In order, the connection relationship is GSGGSGGS...SGGSG. Therefore, crosstalk between the plug contacts 25 can be efficiently prevented by sandwiching the plug contacts 25 between the ground contacts 35.

PC plug connector RC receptacle connector 1 Coaxial cable assembly 2 Coaxial cable 10 Plug rear part 11 Cable holding part 15 Receiving recess 20 Plug front part 21 Plug connection part 25 Plug contact 30 Lower side plug shell member 35 Ground contact 40 Upper side plug shell member 41 Substrate part 45 Upper plate part 47 Locking protrusion 50 Receptacle shell member 57 Locking hole 60 Receptacle housing 70 Receptacle contact

Claims (8)

A plug connector that is mated and connected to a receptacle connector,
a plug housing made of an insulating material and having a cable holding part for holding a plurality of electric cables side by side on the rear side and a plug connection part connected to the front part of the cable holding part; and at least the cable holding part. a plug shell portion formed of a conductive plate that at least partially surrounds the plug shell portion; and a plurality of plug shell portions that are connected to the signal lines of the plurality of electric cables held by the cable holding portion and extend to the plug connection portion. and a plug contact,
The receptacle connector is arranged in a shell receiving part formed of a conductive plate having an open rear end side and receiving the plug shell part, a plug receiving part receiving the plug connection part, and the plug receiving part. and a plurality of receptacle contacts, the plug shell portion is inserted into the shell receiving portion, the plug connecting portion is inserted into the plug receiving portion, and the plurality of plug contacts are connected to the plurality of receptacle contacts. The plug connector is configured to fit and connect with the receptacle connector by making abutting connection with the receptacle connector,
The plurality of plug contacts have portions extending to the plug connection portion arranged horizontally above the plug connection portion,
A plug connector characterized in that the plug shell portion integrally includes a plurality of ground contacts that extend to the plug connection portion and are arranged above the plug connection portion and between the plurality of plug contacts. When the plug connection portion is inserted into the plug receiving portion and the plug connector is fitted and connected to the receptacle connector, the plurality of receptacle contacts selectively abut and connect with the plug contact and the ground contact. The plug connector according to claim 1, characterized in that: At least one surface of the plug shell portion is formed with a cantilevered folding plate formed by folding back the conductive plate forming the plug shell portion at the front end side and extending toward the rear side, and the folding plate 2. The plug connector according to claim 1, wherein the elastic deformation force acts as a fitting force when inserting the plug shell part into the shell receiving part and fitting the plug connector to the receptacle connector. A locking protrusion projecting outward is provided on the folding plate, and when the plug connector is fitted and connected to the receptacle connector, the locking protrusion faces a locking hole formed in the shell receiving portion. Claim: wherein the locking protrusion enters into the locking hole due to outward elastic deformation of the folding plate, and locks and holds the plug connector in a state in which it is fitted and connected to the receptacle connector. 1. The plug connector described in 1. An operating portion exposed outward is provided at the rear end of the folding plate, and the operating portion is operated to elastically deform the folding plate and engage the locking protrusion with the locking hole. A plug connector according to claim 3, characterized in that it is releasable. A receptacle connector that is fitted and connected to the plug connector according to any one of claims 1 to 5,
A shell receiving portion having an open rear end side and receiving the plug shell portion, a plug receiving portion receiving the plug connecting portion, and a plurality of receptacle contacts disposed in the plug receiving portion. ,
Inserting the plug shell portion into the shell receiving portion and inserting the plug connecting portion into the plug receiving portion to selectively abut the plurality of plug contacts with the plurality of receptacle contacts and the plurality of ground contacts. A receptacle connector, characterized in that the plug connector is configured to be connected to the receptacle connector in a fitting manner. A receptacle shell part made of a conductive material forming the shell receiving part, and a receptacle housing part made of an insulating material forming the plug receiving part, and the plurality of receptacle contacts are held by the receptacle housing part. The receptacle connector according to claim 6, characterized in that: A connector set comprising the plug connector according to claim 1 and the receptacle connector according to claim 6.

Images