Electrical Connector Device

Abstract

To provide an electrical connector device that provides electromagnetic shielding at a board connection portion of a contact.SOLUTION: An electrical connector device 1 includes a first connector 2 mounted on a board 5, a conductive member 3 grounded to the board, and a second connector 4 connected to an electric cable 6 to electrically connect the electric cable and the board when mated with the first connector. The first connector includes a board connection portion 21c electrically connected to the board, and further includes a conductive receptacle terminal 21 electrically connected to the electric cable via the second connector when the first and second connectors are mated, and a conductive receptacle shell 22 covering some of the receptacle terminals grounded to the board. The conductive member surrounds an area of the board mounting surface 5a facing the second connector along the receptacle shell and the mounting surface, and the second connector contacts the receptacle shell and the conductive member when mated, and includes a conductive first shell 43 arranged to cover the receptacle terminal together with the receptacle shell and the conductive member.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to an electrical connector device. Place Regarding. [Background technology]

[0002] The interengaging connector device disclosed in Patent Document 1 is composed of a receptacle connector that is connected to a board, and a plug connector that is connected to a coaxial cable and fits into the receptacle connector in the normal direction to the mounting surface of the board. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2018-139175 Summary of the Invention [Problem to be solved by the invention]

[0004] The board connection portion of the contact in the receptacle connector (shown as 19a in Figure 7) is exposed to the outside, which means that electromagnetic noise may leak when power is applied, making it desirable to improve the electromagnetic noise shielding performance.

[0005] The present invention has been made in light of the above circumstances, and provides an electrical connector device capable of providing electromagnetic shielding at the board connection portion of the contact. Place The purpose is to provide. [Means for solving the problem]

[0006] An electrical connector device according to a first aspect of the present invention comprises: a first connector mounted on the substrate; a conductive member formed in a flat plate shape, extending to face the mounting surface of the substrate, and grounded to the substrate; a second connector that is connected to a signal line and that electrically connects the signal line and the board when mated with the first connector; The first connector is a plurality of conductive receptacle terminals each having a board connection portion electrically connected to the board, the receptacle terminals electrically connecting to the signal lines via the second connector when the first connector and the second connector are mated; a sidewall portion surrounding the receptacle terminal; a conductive receptacle shell that is grounded to the substrate and covers at least some of the receptacle terminals, The conductive member is Among the mounting surfaces of the substrate, disposed in an area not covered by the receptacle shell; The receptacle shell surrounds an opposing area facing the second connector that mates with the first connector along the mounting surface. and the receptacle shell is mounted on the board so that its height relative to the mounting surface is lower than the height of the receptacle shell; The second connector is a plurality of conductive plug terminals each having a connection portion connected to one of the signal lines and a contact portion that penetrates into an area covered by the receptacle shell and makes contact with the receptacle terminal; When mated with the first connector, the receptacle terminal contacts the receptacle shell and the conductive member, and the receptacle terminal cooperates with the receptacle shell and the conductive member. and the plug terminal A conductive plug shell is placed over the and, Equipped with At the same time, the connecting portion is disposed so as to face the conductive member and so as to have a height of the connecting portion relative to the mounting surface that is lower than a height of the receptacle shell; The receptacle terminal includes: a first receptacle terminal in which the board connection portions are arranged in a first region of the facing region; a second receptacle terminal in which the board connection portions are arranged in a second region of the facing region that is different from the first region, the receptacle shell is disposed near the first region so as to cover the first receptacle terminal; The conductive member is disposed closer to the second region so that the plug shell covers the board connecting portion of the second receptacle terminal. .

[0007] In this case, the conductive member is provided separately from the receptacle shell. This may also be the case.

[0008] The conductive member is provided with a contact protrusion that comes into contact with the plug shell when the first connector and the second connector are mated. This may also be the case.

[0010] the board connection portions of the second receptacle terminals arranged in the second region protrude from the receptacle shell toward the conductive member;

[0011] The receptacle shell is provided with a first engagement portion, The plug shell is provided with a second engaging portion that engages with the first engaging portion when the first connector and the second connector are mated. This may also be the case. The conductive member is a flat body portion extending in the arrangement direction of the plurality of receptacle terminals; flat extension portions extending from both ends of the main body toward the receptacle shell; Equipped with This may also be the case. [Effects of the Invention]

[0015] According to the present invention, electromagnetic shielding can be achieved at the board connection portion of the contact. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a perspective view of an electrical connector device according to an embodiment of the present invention; [Figure 2] 2 is a perspective view of a first connector and a second connector that constitute the electrical connector device of FIG. 1. FIG. [Figure 3] FIG. 2 is a perspective view showing a portion of a coaxial cable. [Figure 4] FIG. 2 is an exploded perspective view of the first connector. [Figure 5] 1A is a diagram showing the arrangement of receptacle terminals, FIG. 1B is a top view of the receptacle terminals, the receptacle shell, and the conductive members, and FIG. 1C is a bottom view of the receptacle terminals, the receptacle shell, and the conductive members. [Figure 6] FIG. [Figure 7] FIG. 2 is an exploded perspective view of a second connector (plug connector). [Figure 8]FIG. 4 is a perspective view of the second connector as seen from the bottom. [Figure 9] 9A is a cross-sectional view of the receptacle shell of the first connector, excluding the housing, taken along line IX-IX in FIG. 1. FIG. 9B is a cross-sectional view of the electrical connector device, excluding the housing, taken along line IX-IX in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In each drawing, the same or equivalent parts are denoted by the same reference numerals. In this embodiment, the description will be made appropriately according to a three-axis Cartesian coordinate system of XYZ shown in the drawings.

[0018] 1 and 2, the electrical connector device 1 according to this embodiment includes a first connector 2, a conductive member 3, and a second connector 4. From another perspective, the electrical connector device 1 according to this embodiment can be said to include a receptacle connector having the first connector 2, i.e., the conductive member 3, and a plug connector, which is the second connector 4.

[0019] The first connector 2 is mounted on a substrate 5. The conductive member 3 is mounted on the substrate 5 adjacent to the first connector 2 and is grounded to the substrate 5. The second connector 4 is connected to an electric cable 6 serving as a signal line.

[0020] [substrate] The substrate 5 is, for example, a printed wiring board or a flexible printed circuit board on which electronic circuits or electronic components are mounted, and is housed in, for example, an electronic device. The first connector 2 is connected by soldering or the like to a signal electrode and a ground electrode (not shown) formed on the mounting surface 5a of the substrate 5. The conductive member 3 is connected by soldering or the like to a ground electrode formed on the mounting surface 5a of the substrate 5.

[0021] In this embodiment, the mounting surface 5a of the substrate 5 is parallel to the XY plane. Therefore, the normal direction of the mounting surface 5a is the Z-axis direction. In this embodiment, the description will be made by appropriately referring to a plane parallel to the XY plane as a "horizontal plane," the +Z direction as the "up" direction, and the -Z direction as the "down" direction.

[0022] [Electrical cable] The electric cable 6 is used to transmit electric signals between substrates 5 housed in electronic devices. In this embodiment, the electric cable 6 is a coaxial cable. As shown in FIG. 3, the electric cable 6 includes an inner conductor 6a, an insulator 6b, an outer conductor 6c, and a protective coating 6d. The inner conductor 6a is made of a linear metal wire (e.g., a copper wire). The insulator 6b covers the circumferential surface of the inner conductor 6a. The outer conductor 6c is made of a cylindrical metal braided wire and covers the circumferential surface of the insulator 6b. The protective coating 6d covers the circumferential surface of the outer conductor 6c. The electric cable 6 enables signal transmission by a potential difference between the inner conductor 6a and the outer conductor 6c.

[0023] 2, the first connector 2 and the second connector 4 are configured to be able to be fitted to and removed from each other along the normal direction (Z-axis direction) of the mounting surface 5a of the substrate 5. As shown in FIG. 1, when the first connector 2 and the second connector 4 are fitted to each other, the substrate 5 and the electric cable 6 are electrically connected, enabling signal transmission between the electric circuits and electronic components on the substrate 5 and the electric cable 6.

[0024] [1st connector] First, a detailed description will be given of the configuration of the first connector 2. As shown in Fig. 2, the first connector 2 is a flat connector that is long in the X-axis direction.

[0025] As shown in FIG. 4, the first connector 2 is configured to include a receptacle housing 20 facing the board 5, a plurality of receptacle terminals 21, and a receptacle shell 22.

[0026] [Receptacle housing] The receptacle housing 20 forms the main body of the first connector 2. The receptacle housing 20 has a rectangular outer shape with the X-axis direction as the longitudinal direction. The receptacle housing 20 is made of an insulating material containing resin.

[0027] The receptacle housing 20 holds a plurality of receptacle terminals 21 arranged in parallel in the X-axis direction while being covered by the receptacle shell 22. The receptacle housing 20 is interposed between the receptacle terminals 21 and the receptacle shell 22 to insulate them from each other.

[0028] A recess 20a that accommodates a protrusion 40a (see FIG. 8) of the plug housing 40 of the second connector 4 is provided on the upper surface of the receptacle housing 20 facing the +Z direction. The opening of the recess 20a extends in the X-axis direction, which is the longitudinal direction of the receptacle housing 20.

[0029] The receptacle housing 20 is also provided with through holes 20b into which the receptacle terminals 21 are respectively inserted. The through holes 20b are arranged at a predetermined pitch along the X-axis direction near the opening of the recess 20a. One row of the through holes 20b is provided on each side of the recess 20a in the Y-axis direction. One row of the through holes 20b and the other row of the through holes 20b are offset from each other by half the arrangement period along the X-axis direction.

[0030] Additionally, two inner wall surfaces of the recess 20a of the receptacle housing 20 along the X-axis direction are formed with an array of grooves, in which grooves 20c extending in the Z-axis direction are arranged in the Y-axis direction. The grooves 20c on one inner wall surface are located at the same position in the X-axis direction as the through holes 20b located closer to the other inner wall surface. The grooves 20c on the other inner wall surface are located at the same position in the X-axis direction as the through holes 20b located closer to the one inner wall surface.

[0031] [Receptacle terminal] The multiple receptacle terminals 21 are conductive members formed, for example, by punching a metal plate member having elasticity. As shown in Fig. 4, each receptacle terminal 21 has a locking portion 21a, a contact portion 21b, and a board connection portion 21c. As shown in Fig. 5(A), the receptacle terminals 21 are arranged so that the plate thickness direction is in the X-axis direction, and each locking portion 21a is inserted from bottom to top into the through-hole 20b (see Fig. 4). This fixes the receptacle terminals 21 to be held in place in the receptacle housing 20.

[0032] When the receptacle terminals 21 are fixed to the receptacle housing 20, the contact portions 21b protrude into the recessed portions 20a of the receptacle housing 20. When the protruding portions 40a (see FIG. 8) of the plug housing 40 of the second connector 4 are fitted into the recessed portions 20a, the contact portions 21b are pressed by the plug terminals 41 provided on the protruding portions 40a and displaced within the grooves 20c formed on the inner wall surface, and are electrically connected one-to-one with the plug terminals 41 (see FIG. 9(B)).

[0033] Furthermore, when the receptacle terminals 21 are fixed to the receptacle housing 20, the board connecting portions 21c are arranged along the mounting surface 5a, as shown in FIG.

[0034] By inserting the receptacle terminals 21 into the receptacle housing 20 in this manner, two rows of the receptacle terminals 21 are formed aligned in the X-axis direction, as shown in FIG. 5A. The region of the mounting surface 5a of the board 5 where these rows of receptacle terminals 21 are mounted and which faces the second connector 4 that mates with the first connector 2 is also referred to as the facing region FA facing the second connector 4. In the facing region FA, the receptacle terminals 21 in one terminal row and the other terminal row are oriented in opposite directions along the Y-axis direction. As a result, the board connection portions 21c of the receptacle terminals 21 whose locking portions 21a are inserted into one row of through holes 20b and fixed to the receptacle housing 20, and the board connection portions 21c of the receptacle terminals 21 inserted into the other row of through holes 20b, are arranged to extend in opposite directions to each other within the mounting surface 5a.

[0035] 5(A), a receptacle terminal 21 having a board connection portion 21c arranged in a first region 5b closer to the +Y direction within a facing region FA on the mounting surface 5a (see FIG. 4) is referred to as a first receptacle terminal 21A. A receptacle terminal 21 having a board connection portion 21c arranged in a second region 5c closer to the -Y direction and different from the first region 5b within the facing region FA on the mounting surface 5a is referred to as a second receptacle terminal 21B. That is, the first connector 2 includes, as receptacle terminals 21, a first receptacle terminal 21A having a board connection portion 21c located in the first region 5b on the mounting surface 5a of the board 5, and a second receptacle terminal 21B having a board connection portion 21c located in the second region 5c on the mounting surface 5a of the board 5. As shown in Figures 5(B) and 5(C), the receptacle shell 22 is disposed closer to the first region 5b, and the conductive member 3 is disposed closer to the second region 5c. For ease of explanation, the receptacle housing 20 is omitted from Figures 5(B) and 5(C).

[0036] As shown in FIG. 5(A), the contact portions 21b of the receptacle terminals 21 in each terminal row are arranged to face each other and protrude into the recess 20a.

[0037] [Receptacle shell] The receptacle shell 22 is made of, for example, a pressed metal plate member and has elasticity and conductivity. As shown in Fig. 4, the receptacle shell 22 has an upper surface 22a that covers the upper part of the receptacle housing 20, and a pair of side walls 22b, 22c, and 22d.

[0038] 4, top surface portion 22a is a flat portion parallel to the XY plane so as to cover the top surface of receptacle housing 20. Top surface portion 22a has an opening in an area facing recess 20a on the top surface of receptacle housing 20. Top surface portion 22a has extensions 22e at both ends in the X-axis direction of the opening, each of which forms an edge extending in the Y-axis direction.

[0039] As shown in FIGS. 4, 5(B), and 5(C), the pair of sidewalls 22b are formed by bending downward from both edge portions of the top surface 22a in the X-axis direction. Each sidewall 22b is formed parallel to the YZ plane. The receptacle housing 20 is disposed in a space surrounded by the top surface 22a and the pair of sidewalls 22b. The pair of sidewalls 22b cover both sidewalls of the receptacle housing 20 in the X-axis direction. As shown in FIG. 4, each sidewall 22b is formed with a concave first engaging portion 22f that engages with the second engaging portion 43d (see FIG. 7) of the second connector 4 when the first connector 2 and the second connector 4 are mated. The first engaging portion 22f may be convex.

[0040] The side wall portion 22c is formed by bending downward from the edge portion in the +Y direction of the upper surface portion 22a (see FIGS. 9(A) and 9(B)). The side wall portion 22c forms a side wall parallel to the XZ plane. As shown in FIGS. 5(B) and 5(C), a plurality of board connection portions 22g that are grounded to the mounting surface 5a of the board 5 (see FIG. 4) are provided at the bottom of the side wall portion 22c. Both ends of the side wall portion 22c in the X-axis direction face the +Y ends of the pair of side wall portions 22b with a small gap between them.

[0041] 4, the sidewall portion 22d is formed by bending downward from the edges of the extension portions 22e at both ends of the top surface portion 22a in the X-axis direction in the -Y direction, and then extending further in the X-axis direction to connect to each other. The sidewall portion 22d forms a sidewall parallel to the XZ plane of the receptacle shell 22. The top surface portion 22a, the extension portions 22e, and the sidewall portion 22d form the edge of an opening that exposes the recessed portion 20a of the receptacle housing 20.

[0042] Furthermore, board connection portions 22g that connect to the board 5 are provided at both ends and the center of the side wall portion 22d in the X-axis direction. Furthermore, notches are provided in the side wall portion 22d between the board connection portions 22g. A second region 5c shown in FIG. 5(A) is formed below this notch, and as shown in FIGS. 5(B) and 5(C), the board connection portions 21c of the second receptacle terminals 21B are arranged therein. In other words, the board connection portions 21c of the second receptacle terminals 21B arranged in the second region 5c protrude from the receptacle shell 22 toward the conductive member 3. Although the second receptacle terminals 21B are provided in this embodiment, the second receptacle terminals 21B are not necessarily provided. Electromagnetic shielding of the board connection portions 21c of the first receptacle terminals 21A can be achieved without providing the second receptacle terminals 21B. In this way, it is sufficient that the receptacle shell 22 covers at least some of the multiple receptacle terminals 21 (in this embodiment, the first receptacle terminals 21A).

[0043] [Conductive material] Next, a detailed configuration of the conductive member 3 will be described. As shown in Fig. 6, the conductive member 3 is a flat plate-shaped member. The conductive member 3 includes a main body 30, three extensions 31, and two contact pieces 32.

[0044] The main body 30 is a plate-shaped portion whose longitudinal direction is in the X-axis direction. The length of the main body 30 in the X-axis direction is the same as the length of the receptacle shell 22 in the X-axis direction. The extension portions 31 are plate-shaped portions that extend in the +Y direction from both ends and the center of the main body 30 in the X-axis direction. The +Y-direction ends of the extension portions 31 located at both ends in the X-axis direction are arranged to face, with a small gap between them, the board connection portions 22g formed at the lower ends of both ends in the X-axis direction of the side wall portions 22d of the receptacle shell 22. The extension portion 31 located at the center in the X-axis direction may be omitted.

[0045] Thus, in this embodiment, conductive member 3 is provided separately from receptacle shell 22 and is separated by a small gap from receptacle shell 22. Extension portion 31 may be in contact with board connection portion 22g of receptacle shell 22 without any gap, or may be formed integrally with receptacle shell 22.

[0046] The main body 30 and the extending portion 31 are formed along the mounting surface 5a of the substrate 5. The main body 30 and the extending portion 31, i.e., the conductive member 3 and the pair of side wall portions 22b and 22c of the receptacle shell 22, are mounted on the mounting surface 5a so as to surround the receptacle terminal 21 as a whole.

[0047] The contact protrusion 32 protrudes in the +Y direction from the center position between the extension portions 31 on the main body 30. The contact protrusion 32 bends from the main body 30 and is inclined upward with respect to the horizontal plane as it progresses in the +Y direction. The contact protrusion 32 is provided to come into contact with the second shell 44 (see FIG. 7) of the second connector 4 when the first connector 2 and the second connector 4 are mated, thereby ensuring an electrical connection between them.

[0048] [Second connector] Next, a detailed configuration of the second connector 4 will be described. As shown in Fig. 7, the second connector 4 includes a plug housing 40, a plug terminal 41, a ground bar 42, a first shell 43, and a second shell 44. The first shell 43 and the second shell 44 form a plug shell.

[0049] [Plug housing] As shown in FIG. 7, the plug housing 40 forms the base of the second connector 4. The plug housing 40 has a rectangular outer shape, with the X-axis direction as its longitudinal direction. The plug housing 40 is made of an insulating material containing resin. The plug housing 40 holds a plurality of plug terminals 41 arranged in parallel in the Y-axis direction while covered by a first shell 43. The plug housing 40 is interposed between the plug terminals 41 and the ground bar 42, first shell 43, and second shell 44, and insulates them from each other.

[0050] 8, the plug housing 40 has a lower surface facing the -Z direction provided with a protrusion 40a that fits into the recess 20a (see FIG. 4) of the receptacle housing 20 of the first connector 2. The protrusion 40a protrudes downward (in the -Z direction), and the protruding portion extends in the X-axis direction.

[0051] The plug housing 40 holds the plug terminals 41 so that the plug terminals 41 are arranged at the same pitch as the receptacle terminals 21. When the first connector 2 and the second connector 4 are mated, the X positions of the plug terminals 41 coincide with the X positions of the receptacle terminals 21.

[0052] [Plug terminal] The multiple plug terminals 41 are conductive members formed, for example, by punching and bending a metal plate having elasticity. As shown in Fig. 7, each plug terminal 41 has a fixing portion 41a, a contact portion 41b, and a cable connection portion 41c. The plug terminals 41 are aligned in a line in the X-axis direction. Each fixing portion 41a is fixed into the plug housing 40 by insert molding or press-fitting.

[0053] When mated with the first connector 2, the second connector 4 is provided with plug terminals 41, which include first plug terminals 41A that make one-to-one contact with the first receptacle terminals 21A and second plug terminals 41B that make one-to-one contact with the second receptacle terminals 21B. The first plug terminals 41A and the second plug terminals 41B are arranged alternately in the X-axis direction in the same order as the first receptacle terminals 21A and the second receptacle terminals 21B.

[0054] When the plug terminals 41 are fixed to the plug housing 40, the contact portions 41b become part of the outer surface of the protrusion 40a of the plug housing 40, as shown in Fig. 8. As shown in Fig. 8, the contact portion 41b of the first plug terminal 41A is exposed on the -Y surface of the protrusion 40a, and the contact portion 41b of the second plug terminal 41B is exposed on the +Y surface of the protrusion 40a.

[0055] 9(B), each plug terminal 41 is connected to an inner conductor 6a of the electric cable 6 by soldering at a cable connecting portion 41c. The plurality of plug terminals 41 are connected to the plurality of electric cables 6 in a one-to-one relationship.

[0056] [Grand Bar] The ground bars 42 are a pair of conductive plate-like members extending in the X-axis direction. As shown in Fig. 7, the ground bars 42 sandwich the electric cable 6 at the exposed portion of its outer conductor 6c (see Fig. 3). As shown in Fig. 9(B), the ground bar 42 is sandwiched between a first shell 43 and a second shell 44, and is electrically connected by soldering.

[0057] [First Shell] The first shell 43 is made of, for example, a pressed metal plate member and has elasticity and conductivity. As shown in Fig. 7, the first shell 43 includes an upper surface portion 43a, a pair of side wall portions 43b, and a side wall portion 43c.

[0058] As shown in FIGS. 7 and 8, the top surface portion 43a is a flat portion parallel to the XY plane so as to cover the top surface of the plug housing 40. The pair of side wall portions 43b are formed by bending downward from both edge portions of the top surface portion 43a in the X-axis direction. Each side wall portion 43b forms a side wall parallel to the YZ plane. The plug housing 40 is disposed in a space surrounded by the top surface portion 43a and the pair of side wall portions 43b. The pair of side wall portions 43b cover both side walls of the plug housing 40 in the X-axis direction. Each side wall portion 43b is formed with a convex second engagement portion 43d that engages with the concave first engagement portion 22f (see FIG. 4) of the first connector 2. Note that if the first engagement portion 22f is convex, the second engagement portion 43d will be concave.

[0059] As shown in Figure 8, the upper surface portion 43a protrudes significantly from the plug housing 40 in the +Y direction from the first connector 2 toward the conductive member 3, and is formed to a size that can completely cover the first connector 2 and the conductive member 3.

[0060] 8, the side wall portion 43c is formed by bending downward from the edge portion in the +Y direction of the upper surface portion 43a. The side wall portion 43c forms a side wall parallel to the XZ plane.

[0061] The first shell 43 covers the outer periphery of the plug housing 40 while being insulated from the plug terminals 41. The first shell 43 blocks electromagnetic waves generated from the plug terminals 41 and prevents them from leaking to the outside. It is sufficient that the first shell 43 covers at least some of the multiple plug terminals 41.

[0062] [Second Shell] As shown in Fig. 7, the second shell 44 is made of, for example, a pressed metal plate member and has elasticity and conductivity. As shown in Fig. 8, the second shell 44 is insert-molded inside the plug housing 40 while being insulated from the plug terminals 41. The second shell 44 forms part of the lower surface of the second connector 4.

[0063] A plurality of electric cables 6 are connected to plug terminals 41 and ground bars 42 held in a plug housing 40 integrated with a second shell 44. The upper surfaces of these components are covered with a first shell 43, and the lower surfaces are covered with a second shell 44, thereby forming the second connector 4.

[0064] The second shell 44, together with the first shell 43, forms a cover that surrounds the tip portion of the electric cable 6 and the plug terminal 41. This prevents electromagnetic waves from leaking to the outside from the tip portion of the electric cable 6 and the plug terminal 41, and from entering the tip portion of the electric cable 6 and the plug terminal 41 from the outside. The ground bar 42 connected to the electric cable 6 functions as part of this cover.

[0065] [Mating the first connector and the second connector] 9(A) shows a cross-sectional view of the first connector 2, with the receptacle housing 20 mounted on the board 5 omitted. FIG. 9(B) shows a cross-sectional view of the first connector 2 and the second connector 4, with the receptacle housing 20 and the plug housing 40 omitted.

[0066] As shown in Fig. 9(A), the first connector 2 is mounted on the substrate 5. In this state, as shown in Fig. 9(B), the second connector 4 is positioned above the first connector 2 and the conductive member 3 with the tip of the electric cable 6 facing above the conductive member 3. Then, the recess 20a (see Fig. 4) of the receptacle housing 20 of the first connector 2 is fitted into the protrusion 40a (see Fig. 8) of the plug housing 10 of the second connector 4, thereby connecting the first connector 2 and the second connector 4.

[0067] In this state, first engagement portion 22f of receptacle shell 22 engages with second engagement portion 43d of first shell 43, firmly connecting first connector 2 and second connector 4. In this state, second shell 44 of second connector 4 comes into contact with contact protrusion 32 of conductive member 3, and the elastic force of contact protrusion 32 brings conductive member 3 and second shell 44 into stronger electrical contact.

[0068] In this way, when the first connector 2 and the second connector 4 are mated, as shown in Figure 9(B), the inner conductor 6a of the electric cable 6, the plug terminal 41 (plug terminals 41A, 41B) of the second connector 4, the receptacle terminal 21 (receptacle terminals 21A, 21B) of the first connector 2, and the signal electrode of the board 5 come into contact, thereby forming a signal transmission line between the electric cable 6 and the board 5.

[0069] On the other hand, when the first connector 2 and the second connector 4 are mated as described above, as shown in Fig. 9(B), a grounding transmission line is formed, which includes the outer conductor 6c of the electric cable 6, the ground bar 42, the first shell 43 and the second shell 44, the receptacle shell 22, and the ground electrode of the substrate 5. A voltage signal is transmitted via the signal transmission line and the grounding transmission line.

[0070] 9(A), a portion of the periphery of the receptacle terminal 21 is surrounded by the receptacle shell 22 and the conductive member 3. The conductive member 3 is arranged so as to surround, together with the receptacle shell 22, a facing area FA (FIG. 5(A)) of the mounting surface 5a of the board 5 that faces the second connector 4 that mates with the first connector 2, along the mounting surface 5a. However, although the second receptacle terminal 21B, particularly the portion of the second receptacle terminal 21B closer to the board connecting portion 21c, is surrounded by the conductive member 3 within the mounting surface 5a of the board 5, no member is provided above the conductive member 3 that surrounds the receptacle terminal 21 together with the receptacle shell 22.

[0071] 9(B), when the first connector 2 and the second connector 4 are mated, the plug shell consisting of the first shell 43 and the second shell 44 of the second connector 4 covers the portions not covered by the receptacle shell 22. As described above, the plug shell is in contact with the receptacle shell 22 and the conductive member 3, and therefore functions as an electromagnetic shield for the transmission line of the above-mentioned signal together with the receptacle shell 22 and the conductive member 3. In other words, when the plug shell of the second connector 4 is mated with the first connector 2, it comes into contact with the receptacle shell 22 and the conductive member 3 and is arranged to cover the receptacle terminals 21 together with the receptacle shell 22 and the conductive member 3. More specifically, as shown in Figure 9(B), the plug shell (consisting of a first shell 43 and a second shell 44) is arranged so as to contact the receptacle shell 22 and extend toward the conductive member 3 to contact the conductive member 3, thereby covering the receptacle terminal 21 together with the receptacle shell 22 and the conductive member 3.

[0072] A ground bar 42 is formed in the portion where the electric cable 6 is inserted, and this also acts as an electromagnetic shield together with the receptacle shell 22, the first shell 43 and the conductive member 3.

[0073] Thus, the first connector 2 comprises a conductive receptacle terminal 21 that electrically connects to the electrical cable 6 via the second connector 4 when the first connector 2 and the second connector 4 are mated, and a conductive receptacle shell 22 that is grounded to the substrate 5 and covers a portion of the receptacle terminal 21.

[0074] The second connector 4 also has a conductive plug shell (composed of a first shell 43 and a second shell 44) that, when mated with the first connector 2, comes into contact with the receptacle shell 22 and the conductive member 3 and is arranged to cover the receptacle terminal 21 together with the receptacle shell 22 and the conductive member 3.

[0075] 9(B), the main portion of the first connector 2, which is based on the receptacle housing 20, and the main portion of the second connector 4, which is based on the plug housing 40, are arranged along the XY plane without overlapping in the Z-axis direction. The main portion of the second connector 4 is arranged on the conductive member 3. This allows the electrical connector device 1 to be made low-profile.

[0076] As described in detail above, according to the electrical connector device 1 of this embodiment, the entire device can be covered by the receptacle terminal 21, the receptacle shell 22 of the first connector 2, the conductive member 3, and the plug shell (composed of the first shell 43 and the second shell 44) of the second connector 4, thereby providing electromagnetic shielding at the board connection portion 21c of the receptacle terminal 21.

[0077] In this embodiment, the conductive member 3 is provided separately from the receptacle shell 22. This makes it possible to prevent deformation of the conductive member 3 more effectively than if the conductive member 3 were formed by extending the receptacle shell 22. Furthermore, by providing the conductive member 3 as a separate component, the complexity of the components can be avoided, improving the precision of each component. Furthermore, it becomes easier to inspect the position of the board connection portion 21c of the receptacle terminal 21 or the board connection portion 22g of the receptacle shell 22 that faces the mounting surface 5a of the board 5.

[0078] In this embodiment, the conductive member 3 is provided with contact protrusions 32 that come into contact with the second shell 44 and generate an elastic force when the first connector 2 and the second connector 4 are mated. This makes it possible to strengthen the electrical connection between the first connector 2 and the second connector 4.

[0079] In addition, in this embodiment, the receptacle terminals 21 include a first receptacle terminal 21A whose board connection portion 21c is located in a first region 5b on the mounting surface 5a of the board 5, and a second receptacle terminal 21B whose board connection portion 21c is located in a second region 5c on the mounting surface 5a of the board 5. The receptacle shell 22 is located closer to the first region 5b, and the conductive member 3 is located closer to the second region 5c. This increases the degree of freedom in arranging the receptacle terminals 21 and the plug terminals 41, and enables high-density mounting.

[0080] Of course, the receptacle terminals 21 and plug terminals 41 may be arranged in a row with the same shape and orientation. That is, all of the board connection portions 21c of the first receptacle terminals 21A and the second receptacle terminals 21B may be located in the first region 5b or the second region 5c within the mounting surface 5a of the board 5.

[0081] Furthermore, according to the present embodiment, receptacle shell 22 is provided with first engaging portion 22f, and first shell 43 is provided with second engaging portion 43d that engages with first engaging portion 22f when first connector 2 and second connector 4 are mated. In this way, the physical connection between first connector 2 and second connector 4 can be made strong.

[0082] The shapes of the first engaging portion 22f and the second engaging portion 43d are not limited to those in the above embodiment, as long as the first engaging portion 22f and the second engaging portion 43d can be locked to each other.

[0083] According to this embodiment, the plug shell is made up of the first shell 43 and the second shell 44, but the plug shell may be formed from one of these components.

[0084] A differential signal may be transmitted between a pair of adjacent electric cables 6. Furthermore, one electric cable 6 between the pair of electric cables 6 may be a grounding electric cable 6. Furthermore, the electric cable 6 may be a shielded wire other than a coaxial cable.

[0085] In this embodiment, the electric cable 6 extends parallel to the XY plane. However, this is not limiting. The electric cable 6 may extend in the normal direction or in a direction inclined to the XY plane.

[0086] This invention allows various embodiments and modifications without departing from the broad spirit and scope of this invention. Furthermore, the above-described embodiments are intended to explain this invention and do not limit the scope of this invention. That is, the scope of this invention is defined by the claims, not the embodiments. Various modifications made within the scope of the claims and the meaning of the invention equivalent thereto are considered to be within the scope of this invention. [Industrial Applicability]

[0087] The present invention can be applied to electromagnetic shielding of connectors that connect boards together. [Explanation of symbols]

[0088] 1 Electrical connector device, 2 First connector, 3 Conductive member, 4 Second connector (plug connector), 5 Board, 5a Mounting surface, 5b First region, 5c Second region, 6 Electrical cable (signal line), 6a Inner conductor, 6b Insulator, 6c Outer conductor, 6d Protective coating, 20 Receptacle housing, 20a Recess, 20b Through hole, 20c Groove, 21 Receptacle terminal, 21A First receptacle terminal, 21B Second receptacle terminal, 21a Locking portion, 21b Contact portion, 21c Board connection portion, 22 Receptacle shell, 22a Upper surface portion, 22b, 22c, 22d Side wall portion, 22e Extension portion, 22f First engagement portion, 22g Board connection portion, 30 Main body portion, 31 Extension portion, 32 Contact protrusion, 40 Plug housing, 40a protrusion, 41 plug terminal, 41A first plug terminal, 41B second plug terminal, 41a fixing portion, 41b contact portion, 41c cable connection portion, 42 ground bar, 43 first shell, 43a upper surface portion, 43b, 43c side wall portion, 43d second engagement portion, 44 second shell, FA opposing area

Claims

1. a first connector mounted on the substrate; a conductive member formed in a flat plate shape, extending to face the mounting surface of the substrate, and grounded to the substrate; a second connector that is connected to a signal line and that electrically connects the signal line and the board when mated with the first connector; The first connector is a plurality of conductive receptacle terminals each having a board connection portion electrically connected to the board, the receptacle terminals electrically connected to the signal lines via the second connector when the first connector and the second connector are mated; a conductive receptacle shell having a side wall portion surrounding the receptacle terminal, grounded to the substrate, and covering at least some of the receptacle terminals, The conductive member is the receptacle shell is disposed in an area of ​​the mounting surface of the board that is not covered by the receptacle shell, and the receptacle shell and the mounting surface surround an opposing area that faces the second connector that mates with the first connector, and the receptacle shell is mounted on the board so that its height relative to the mounting surface is lower than the height of the receptacle shell; The second connector is a plurality of conductive plug terminals each having a connection portion connected to one of the signal lines and a contact portion that penetrates into an area covered by the receptacle shell and makes contact with the receptacle terminal; a conductive plug shell that contacts the receptacle shell and the conductive member when mated with the first connector and is arranged to cover the receptacle terminals and the plug terminals together with the receptacle shell and the conductive member; the connecting portion is disposed so as to face the conductive member and so as to have a height of the connecting portion relative to the mounting surface that is lower than a height of the receptacle shell; The receptacle terminal includes: a first receptacle terminal in which the board connection portions are arranged in a first region of the facing region; a second receptacle terminal in which the board connection portions are arranged in a second region of the facing region that is different from the first region, the receptacle shell is disposed near the first region so as to cover the first receptacle terminal; the conductive member is disposed closer to the second region so that the plug shell covers the board connecting portion of the second receptacle terminal; Electrical connector device.

2. The conductive member is provided separately from the receptacle shell.

2. The electrical connector device of claim 1.

3. The conductive member is provided with a contact protrusion that comes into contact with the plug shell when the first connector and the second connector are mated.

2. The electrical connector device of claim 1.

4. the board connection portions of the second receptacle terminals arranged in the second region protrude from the receptacle shell toward the conductive member; 2. The electrical connector device of claim 1.

5. The receptacle shell is provided with a first engagement portion, The plug shell is provided with a second engaging portion that engages with the first engaging portion when the first connector and the second connector are mated.

2. The electrical connector device of claim 1.

6. The conductive member is a flat body portion extending in the arrangement direction of the plurality of receptacle terminals; flat extension portions extending from both ends of the main body toward the receptacle shell; Equipped with 2. The electrical connector device of claim 1.

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