JP4563250B2 - Connector, receptacle connector, and portable wireless terminal or small electronic device - Google Patents

Description

The present invention relates to a connector , a receptacle connector, and a portable wireless terminal or a small electronic device equipped with these connectors, which are used in a portable wireless terminal typified by a mobile phone or a small electronic device typified by a notebook personal computer. Regarding equipment .

  In mobile phones and notebook computers, multi-pole board-mounted connectors are used to connect cables connected to a liquid crystal display device or the like to a board on a motherboard. This type of connector is, for example, a combination of a horizontally long connector plug into which a plurality of cables are assembled and a horizontally long board-mounted receptacle to which the cable is fitted, as described in Patent Document 1.

JP 2000-331731 A

  The horizontally long connector plug is usually of a cap type covering a horizontally long receptacle, and has a large number of plug contacts arranged at predetermined intervals in the longitudinal direction (lateral width direction). The multiple plug contacts are electrically connected to the assembled multiple cables. On the other hand, the receptacle has a large number of receptacle contacts arranged at predetermined intervals in the longitudinal direction (lateral width direction) so as to correspond to the large number of plug contacts. A large number of receptacle contacts are inserted into slit-shaped insertion portions perpendicular to the longitudinal direction formed at predetermined intervals in the longitudinal direction of the resin body, and one end of each receptacle contact is elastically pressed against the corresponding plug contact. It is a deformation part. The other end portion is a fixed lead portion for mounting on the substrate, and is joined to a wiring pattern formed on the substrate surface by soldering or the like.

  By attaching the connector plug to the receptacle mounted on the surface of the board, the elastically deforming parts of the multiple receptacle contacts in the receptacle are elastically deformed, and due to the restoring force, the multiple receptacle contacts can be accommodated in the connector plug. Press contact the plug contact. Thereby, a large number of cables assembled in the connector plug are electrically connected to the wiring pattern formed on the surface of the substrate.

  In such a multi-pole substrate mounting type connector, the bonding strength of the receptacle is secured by bonding a large number of receptacle contacts in the substrate mounting type receptacle to the substrate. However, since a large number of receptacle contacts are very small and the bonding area cannot be increased, the bonding strength of the receptacle tends to be insufficient. In order to solve this problem, dedicated terminal components (mounting terminals) are provided on both ends of the receptacle body, that is, on both sides of the receptacle contact group.

  On the other hand, the connector plug is provided with a cover-like shield member made of a conductive member such as a metal plate in order to shield a large number of assembled cables. The shield member comes into contact with the shield terminal on the receptacle side when the connector plug is attached to the receptacle, and is connected to the ground line on the surface of the substrate through the shield terminal. The shield terminals used here are also provided at both ends of the receptacle body in the same manner as the mounting terminals, and are joined to the ground line on the substrate surface during mounting.

  In a conventional multi-pole board-mounted connector, both the mounting terminals and shield terminals provided at both ends of the receptacle body are press-fitted into the slit-like insertion part provided in the body, like a large number of receptacle contacts. Built into the body. For this reason, the assembly process of the receptacle has two processes of contact press-fitting and terminal press-fitting, and there is a problem of time loss and component deformation due to movement between the processes.

  Furthermore, in the case of a shield terminal, it is necessary to increase the contact area with the shield member of the connector plug in order to enhance the shield effect, but it is difficult to increase the contact area with the shield member only with the shield terminals at both the left and right ends. As a result, there is a problem that it is difficult to sufficiently enhance the shielding effect.

  On the other hand, regarding the mounting terminals, it is necessary to increase the number of mounting terminals in order to further increase the mounting strength, but there is a problem that the number of components increases. As for the shield terminal, it is conceivable to increase the number of terminals as a method for enhancing the shielding effect, but there is a problem that the number of parts similarly increases.

  The present invention was devised in view of such circumstances, and it is possible to increase the substrate bonding strength of the substrate mounting type receptacle, and to avoid the increase in the number of components and the assembly process as much as possible. An object is to provide a connector.

  Another object of the present invention is to provide a multi-pole board mounting type connector having excellent shielding properties that can easily increase the contact area of the receptacle with the shield member on the connector plug side and can easily increase the contact pressure. There is.

  Still another object of the present invention is to provide a multi-pole board-mounted connector that can easily prevent erroneous fitting or inadvertent detachment of a connector plug to a receptacle.

In order to achieve the above object, a connector according to the present invention includes a connector plug in which a plurality of cables are connected in a longitudinal direction, and a connector plug that fits into the connector plug and connects the cable to a board. The receptacle comprises a combination of a substrate mounting type receptacle mounted on the surface of the substrate, and the receptacle includes a body having a plurality of slit-like insertion portions formed at a predetermined interval in the longitudinal direction and perpendicular to the longitudinal direction, and a slit shape of the body. A plurality of receptacle contacts, each of which is inserted into the insertion portion, and each one end is an elastic deformation portion pressed against the contact of the connector plug, and each other end is a fixed lead portion for board mounting, and the body is insert molded It is a conductive member that is incorporated over the entire length in the longitudinal direction, and both ends of the conductive member are mounted as body terminal portions on the board. And possess a terminal member exposed from both ends of the terminal member has a connecting portion for connecting the mounting terminal portions at both ends, when the receptacle is fitted to the connector plug, the connecting portion is a connector It is exposed to the fixed lead portion side of the body so as to contact the shield member of the plug.

  In the connector according to the present invention, in the board-mounted receptacle, terminal members having mounting terminal portions at both ends are incorporated into the body by insert molding. Since this terminal member is not press-fitted, the assembly process of the receptacle can be completed by one step of contact press-fitting. Then, by joining the mounting terminal portions formed at both ends of the terminal member to the substrate when the receptacle is mounted, the bonding strength can be increased with one component and without an increase in the assembly process.

Since the connection part of the terminal member is exposed to the fixed lead part side of the body and contacts the shield member of the connector plug, the repulsive force of the elastic deformation part located on the opposite side of the fixed lead part in the plug contact The shield member on the connector plug side can be pressed into contact with the connecting portion of the terminal member. For this reason, a contact pressure can be increased easily. In addition, since the terminal member is exposed from the body so that the connecting portion connecting the mounting terminal portions at both ends contacts the shield member of the connector plug when the connector plug is fitted, the terminal plug side The contact area with the shield member can be easily increased.

  Here, the terminal member preferably has a convex portion at the connecting portion, and the shield member of the connector plug preferably has a concave portion or a through hole in which the convex portion is fitted at a position corresponding to the convex portion. According to this configuration, the fixing strength of the connector plug attached to the receptacle is improved by fitting the convex portion on the terminal member side into the concave portion or the through hole on the shield member side.

  It is preferable that the receptacle-side terminal member also has one or a plurality of mounting terminal portions at the intermediate portion of the connecting portion that connects the mounting terminal portions at both ends. According to this configuration, the number of parts to be joined to the substrate is increased without increasing the number of parts, and the joining strength and shielding properties can be improved.

  Further, in the terminal member on the receptacle side, the member is projected to one end side or both end sides of the body, and on the connector plug side, the terminal member is attached only when the plug is correctly fitted to the receptacle. The structure which provides the groove part for incorrect fitting prevention in which the protrusion edge part of this is inserted is preferable. According to this configuration, it is possible to prevent erroneous fitting of the connector plug using a part of the terminal member provided on the receptacle side.

  The connector according to the present invention has a structure in which a terminal member having mounting terminal portions at both ends is incorporated into the body of the substrate mounting type receptacle body by insert molding, so that the board bonding strength of the receptacle can be increased and the number of parts can be increased. Increase and increase in assembly process can be avoided as much as possible. In addition, by using the receptacle-side terminal member, the contact area with the shield member on the connector plug side can be easily increased, the contact pressure can be easily increased, and the connector plug is erroneously fitted to the receptacle. And inadvertent withdrawal can be easily prevented.

  And if the connector which concerns on this invention which has such a characteristic is used for a portable radio | wireless terminal or a small electronic device, these apparatuses will become the thing excellent in economical efficiency and reliability.

  Embodiments of the present invention will be described below with reference to the drawings. 1 is a cutaway perspective view of a connector showing an embodiment of the present invention, FIG. 2 is a cutaway perspective view of a receptacle in the connector, FIG. 3 is a perspective view of the receptacle from the plane side, and FIG. 4 is a bottom side of the receptacle FIG. 5 is a perspective view of a terminal member in the receptacle, FIG. 6 is a cutaway perspective view of a plug in the connector, and FIGS. 7 and 8 are perspective views from the bottom side of the plug.

  The connector according to this embodiment is a multi-pole substrate mounting type connector used for connection between a liquid crystal display device in a mobile phone or a notebook personal computer and a substrate on a motherboard. As shown in FIG. 1, this connector includes a horizontally long receptacle 10 mounted on the surface of a substrate and a horizontally long connector plug 20 attached to the receptacle 10. A plurality of cables 30 are connected to the connector plug 20 side by side as shown in FIGS.

  Here, the plurality of cables 30 are aggregated wires in which predetermined thin cables 31 are bundled. Then, a plurality of thick cables 30 are connected to the connector plug 20, and the thin cables 31 in each cable 30 are spread apart in the connector plug 20 so that the plurality of cables 30 are arranged in the connector plug 20. The plug contacts 22 are connected.

  As shown in FIGS. 2 to 4, the receptacle 10 mounted on the surface of the substrate has a laterally long receptacle body 11 made of resin, a large number of receptacle contacts 13 held by the receptacle body 11, and the entire width of the receptacle body 11. A horizontally long terminal member 15 is provided.

  The receptacle body 11 is a rectangular parallelepiped that is long in the lateral direction, and has a large number of contact insertion portions 12 formed at predetermined intervals in the longitudinal direction. The contact insertion portion 12 is a slit perpendicular to the longitudinal direction of the body 11, and is provided in a portion excluding both end portions and the central portion of the body 11. Each insertion portion 12 has two through grooves 12 a and 12 b that penetrate between the upper and lower surfaces of the body 11.

  The receptacle contact 13 has an inverted U-shaped holding portion 13a at the intermediate portion, an elastically deformable portion 13b bent outwardly in a “<” shape at one end thereof, and the holding portion 13a at the other end side. A fixed lead portion 13c protruding horizontally from the lower end portion is provided. The inverted U-shaped holding portion 13 a is press-fitted into the through groove 12 a from below and fixes the receptacle contact 13 to the receptacle body 11. The elastically deformable portion 13 b is inserted into the through groove 12 b from below and causes the bent portion to protrude outward from the front of the body 11 for contact with the connector plug 20. The fixed lead portion 13c protrudes outward from the back surface of the body 11 for mounting with the substrate.

  As shown in FIG. 5, the horizontally long terminal member 15 is made of a plate-like conductive material such as a copper plate, and is combined with the body 11 by insert molding. The terminal member 15 includes a pair of mounting terminal portions 16 and 16 located on both ends in the longitudinal direction of the body 11 and a connecting portion 17 that connects them. The connecting portion 17 is a vertical plate parallel to the back surface of the body 11, and is joined and fixed to the back surface by the insert molding. In the connecting portion 17, a plurality of convex portions 17 a protruding to the back side of the body 11 are formed at predetermined intervals in the longitudinal direction. Both end portions of the connecting portion 17 protrude to both end sides of the body 11.

  The mounting terminal portions 16 and 16 at both ends protrude from the lower edges of the protruding end portions 17 b and 17 b at both ends of the connecting portion 17 to the front side of the body 11. Similarly, also in the central portion of the connecting portion 17, the lower edge portion protrudes to the front side of the body 11 to form the second mounting terminal portion 18. The mounting terminal portions 16 and 16 at the both ends and the mounting terminal portion 18 at the center are positioned at the same level as the bottom surface of the body 11 in the same manner as the fixed lead portion 13c of the receptacle contact 13 for mounting on the surface of the substrate. Yes.

  The connector plug 20 is a horizontally long cap that covers the receptacle 10 mounted on the substrate surface from above. As shown in FIGS. 6 to 8, the connector plug 20 holds and fixes a plurality of cables 30 inserted from the back side of the receptacle 10.

  Each cable 30 is an assembly line in which a predetermined number of thin cables 31 are bundled, and a plurality of thick cables 30 are connected to the connector plug 20, and the thin cables 31 in each cable 30 are separated in the connector plug 20. As described above, it spreads and is connected to a large number of plug contacts 22 in the connector plug 20.

  This connector plug 20 includes a horizontally long plug body 21 made of resin, a large number of plug contacts 22 held side by side in the plug body 21, and a first shield member 23 combined with the plug body 21 by insert molding. And a second shield member 24 combined with the plug body 11 by fitting. Both shield members 23 and 24 are made of an aluminum plate.

  The plug body 21 has a horizontally long receptacle fitting portion 21a to which the receptacle 10 is fitted on the lower surface side, and has a cable housing portion 21c for housing the tip portions of the plurality of cables 30 on the upper surface side. The receptacle fitting portion 21a is formed between both end portions of the receptacle 20, and is open to the bottom surface side and the back surface side (side into which the cable 30 is inserted) of the plug body 21. At both end portions of the plug body 21, vertical groove portions 21b, 21b along the body longitudinal direction are provided at the end portions on the back side. The groove portions 21b and 21b are guide grooves into which the protruding portions 17b and 17b at both ends of the connecting portion 17 of the terminal member 15 are inserted when the receptacle 10 is fitted to the receptacle fitting portion 21a, and the insertion is facilitated. For this reason, the inlet portion is tapered.

  A large number of plug contacts 22 are arranged at predetermined intervals in the longitudinal direction of the body 21 and are disposed along the vertical inner wall surface of the receptacle fitting portion 21a. Each plug contact 22 is inserted from the back side into a vertical through hole formed in the body 21 for connection and fixation with a thin cable 31 inserted into the connector plug 20.

  The first shield member 23 combined with the plug body 21 by insert molding includes a horizontal portion 23a joined to the bottom surface of the cable housing portion 21, and a first vertical portion extending downward from an edge on the back side of the horizontal portion 23a. 23b and a second vertical portion 23c provided on the front side of the horizontal portion 23a. The first vertical portion 23b closes the opening on the back side of the receptacle fitting portion 21a and comes into pressure contact with the connecting portion 17 of the terminal member 15 of the receptacle 10 fitted to the receptacle fitting portion 21a. A plurality of concave portions 23 d corresponding to the convex portions 17 a provided in the connecting portion 17 are provided on the inner surface of the first vertical portion 23 b. The second vertical portion 23 c is joined to the front surface of the plug body 21.

  The second shield member 24 is mounted on the body 21 to cover the cable housing portion 21c of the body 21, and the plurality of cables 30 inserted from the back side into the cable housing portion 21c are fixed by the cable fixing portion 24a. When the second shield member 24 is attached, the cable fixing portion 24 a contacts the horizontal portion 23 a of the first shield member 23. In order to fix the second shield member 24, the vertical portions on both sides of the second shield member 24 are press-fitted into slit-like fitting holes 21 e provided at both ends of the body 21. These plug members 23 and 24 shield the plug except the bottom.

  A plurality of thin cables 31 in each cable 30 are inserted into horizontal insertion holes provided in the rear wall portion 21 d of the body 21. The cable 31 is fixed and electrically connected to the plug contact 22 by the plug contact 22 that is vertically inserted into the rear wall portion 21d from below. That is, the horizontal cable insertion hole and the vertical contact insertion hole in the rear wall portion 21d intersect at a right angle.

  Next, the usage method and function of the connector according to the present embodiment will be described.

  The receptacle 10 is mounted on the surface of the substrate. Specifically, each fixed lead portion 13c of the large number of receptacle contacts 13 is joined to a corresponding pattern on the substrate surface. At the same time, the mounting terminal portions 16 and 16 at both ends of the terminal member 15 and the mounting terminal portion 18 at the center are joined to the ground pattern on the substrate surface. Since the mounting terminal portions 16, 16 and 18 are bonded to the substrate surface in addition to the fixed lead portion 13 c of the receptacle contact 13, excellent bonding strength is ensured. Moreover, since the mounting terminal portions 16, 16, and 18 are part of the terminal member 15 and are a single component, an increase in the number of components is avoided.

  Further, since the terminal member 15 is insert-molded in the receptacle body 11, it is not necessary to attach the mounting terminal portions 16, 16, 18 to the receptacle body 11 in the assembly process of the receptacle 10. Only the receptacle contact 13 is attached in the assembly process of the receptacle 10. That is, the assembly of the receptacle 10 can be completed in one step. Therefore, time loss and component deformation due to movement between processes that are problematic in two processes are prevented.

  In the device assembly, the connector plug 20 to which the cable 30 is connected is attached to the receptacle 10 mounted on the surface of the substrate. Specifically, the connector plug 20 is put on the receptacle 10 so that the receptacle 10 is fitted to the receptacle fitting portion 21 a formed on the lower surface of the body of the connector plug 20. At this time, only when the front and rear directions of the connector plug 20 are correct, the projecting end portions 17b and 17b provided in the connecting portion 17 of the terminal member 15 in the receptacle 10 are formed in the groove portions 21b and 21b provided in both end portions of the body 21. Is inserted. For this reason, the situation of incorrect mounting in which the front and rear directions of the connector plug 20 are reversed is avoided, and damage due to incorrect mounting is prevented. In addition, since the inlet portions of the grooves 21b and 21b spread in a taber shape, there is an advantage that the connector plug 20 is guided to a fixed position.

  When the connector plug 20 is attached to the receptacle 10, the elastically deforming portions 13 b of the large number of receptacle contacts 13 in the receptacle 10 come into pressure contact with the corresponding plug contacts 22 in the connector plug 20. More specifically, the elastic deformation portion 13b is elastically deformed by being pressed by the corresponding plug contact 22, and is pressed against the plug contact 22 by its repulsive force. For this reason, reliable electrical contact is obtained.

  When the connector plug 20 is attached to the receptacle 10, the first vertical portion 23 b of the first shield member 23 of the connector plug 20 contacts the connecting portion 17 of the terminal member 15 of the receptacle 10. Here, the connecting portion 17 is connected to the ground pattern on the substrate surface via the mounting terminal portions 16, 16, and 18. For this reason, the 1st shield member 23 is grounded with the 2nd shield member 24 which contacts this.

  At this time, the first vertical portion 23 b of the first shield member 23 and the connecting portion 17 of the terminal member 15 are in surface contact with the entire length of the receptacle 10. For this reason, a large contact area is ensured. Moreover, three mounting terminal portions 16, 16, and 18 are bonded to the substrate. For these reasons, the shielding effect is very high.

  In addition, the attached connector plug 20 is pressed toward the elastic deformation portion 13 b, that is, the front side of the receptacle 10 by the elastic deformation portions 13 b of the large number of receptacle contacts 13 in the receptacle 10. Here, the connecting portion 17 of the terminal member 15 in the receptacle 10 is disposed on the side of the fixed lead 13c opposite to the elastically deforming portion 13b together with the first vertical portion 23b of the first shield member 23 that abuts on the connecting portion 17. Yes. As a result, using the elastic deformation portion 13b, the first vertical portion 23b of the first shield member 23 is strongly pressed against the connecting portion 17 of the terminal member 15, and the shielding effect is also improved in this respect.

  Further, the connecting portion 17 of the terminal member 15 is provided with a plurality of convex portions 17a, and the first vertical portion 23b of the first shield member 23 is provided with a plurality of concave portions 23d into which the convex portions 17a are fitted. It has been. By this fitting, the attached connector plug 20 is securely held by the receptacle 10, and the connector plug 20 is prevented from being inadvertently detached.

  Further, when high-speed serial signals are transmitted in a differential manner, both sides of the signal line can be handled by a single terminal member 15 and a large number of terminals corresponding to the number of ground lines are required. do not do.

  In addition, although the intermediate mounting terminal part 18 in the terminal member 15 was provided in the said embodiment, it cannot be overemphasized that multiple may be provided. Further, in order to fit and fix the terminal member 15 and the first shield member 23, in the above embodiment, the convex portion 17a is provided on the terminal member 15 side, and the concave portion 23d is provided on the first shield member 23 side. It is also possible to provide a convex part on the shield member side and provide a concave part or a penetration part into which the convex part is fitted on the terminal member 15 side.

It is a fracture perspective view of a connector showing one embodiment of the present invention. It is a fracture perspective view of the receptacle in the connector. It is a perspective view from the plane side of the receptacle. It is a perspective view from the bottom face side of the receptacle. It is a perspective view of the terminal member in the receptacle. It is a fractured perspective view of the plug in the connector. It is a perspective view from the bottom face side of the plug. It is a perspective view from the bottom face side of the plug.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Receptacle 11 Receptacle body 13 Receptacle contact 13b Elastic deformation part 13c Fixed lead part 15 Terminal member 16, 18 Mounting terminal part 17 Connection part 20 Connector plug 21 Plug body 22 Plug contact 23 1st shield member 24 2nd shield member 30,31 cable

Claims (6)

A connector plug in which a plurality of cables are connected in a longitudinal direction; and
It consists of a combination with a board-mounting receptacle that fits on the connector plug and is mounted on the surface of the board to connect the cable to the board,
The receptacle has a body in which a plurality of slit-shaped insertion portions perpendicular to the longitudinal direction are formed at predetermined intervals in the longitudinal direction, and
A plurality of receptacle contacts each inserted into a slit-like insertion portion of the body, each one end being an elastic deformation portion pressed against the contact of the connector plug, and each other end being a fixed lead portion for board mounting;
Said body to a conductive member embedded over the entire longitudinal length by insert molding, and have a a terminal member both ends of the conductive member is exposed from both ends of the body as a mounting terminal portion of the substrate,
The terminal member has a connecting portion that connects the mounting terminal portions at both ends,
The connector, wherein when the receptacle is fitted to the connector plug, the connecting portion is exposed to the fixed lead portion side of the body so as to contact the shield member of the connector plug . The connector according to claim 1,
The connector is characterized in that the terminal member has a convex portion in the connecting portion, and the shield member of the connector plug has a concave portion or a through hole into which the convex portion is fitted at a position corresponding to the convex portion. The connector according to claim 1,
The receptacle-side terminal member has one or a plurality of mounting terminal portions at an intermediate portion of a connecting portion that connects mounting terminal portions at both ends. The connector according to claim 1,
The receptacle-side terminal member protrudes to one end or both ends of the body, and the connector plug is inserted incorrectly when the protruding end portion of the terminal member is inserted only when the connector plug is correctly fitted to the receptacle. A connector having a groove for prevention. In a board mount type receptacle connector that can be connected to a connector plug fitting portion in which a plurality of cables are connected in a line in the longitudinal direction.
A body in which a plurality of slit-like insertion portions perpendicular to the longitudinal direction are formed at predetermined intervals in the longitudinal direction;
A plurality of receptacle contacts each inserted into a slit-like insertion portion of the body, each one end being an elastically deformable portion that can be pressed into contact with a connector plug contact, and each other end being a fixed lead portion for board mounting;
It is a conductive member incorporated over the entire length in the longitudinal direction by insert molding into the body, and both end portions of the conductive member are provided with terminal members exposed from both end portions of the body as mounting terminal portions to the substrate,
The terminal member has a connecting portion that connects the mounting terminal portions,
When the receptacle connector is fitted to the connector plug, the receptacle connector, characterized in that is exposed to the stationary lead portion side of the body so that the connecting portion is in contact with the shield member of the connector plug. A portable wireless terminal or a small electronic device using the connector according to claim 1 .