JP2023069607A - connector - Google Patents

Abstract

To shorten a conductive path of a ground terminal, improve a degree of freedom in deformation of the ground terminal, strengthen ground, surely maintain a fitting state, make downsizing possible, simplify a structure, reduce the number of components, facilitate manufacturing, reduce cost and improve reliability.SOLUTION: The present invention relates to a connector comprising: a first connector including a first stationary housing, a first movable housing, a first signal terminal and a stationary ground terminal; and a second connector including a second stationary housing, a second signal terminal and an elastic ground terminal. The stationary ground terminal is held by the first stationary housing outside of an array direction of the first signal terminal, and the elastic ground terminal is held by the second stationary housing outside of an array direction of the second signal terminal and can be elastically deformed in a fitting direction of the first connector and the second connector.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to connectors.

Conventionally, a board-to-board connector is used to electrically connect a pair of circuit boards. However, the relative positions of the circuit boards set in advance may be shifted. Therefore, in order to absorb the positional deviation of the circuit board, it has been proposed that one or both of the connectors have a floating structure (see, for example, Patent Document 1).

FIG. 13 is a sectional view showing a conventional mated board-to-board connector.

In the figure, 810 is a floating connector mounted on the surface of a first circuit board 891, and includes a plurality of signal terminals 861 that can be deformed and bent in the fitting direction (vertical direction in FIG. 13), and a ground terminal. It has an upper ground terminal 854 and a lower ground terminal 853 as terminals. Note that the upper ground terminal 854 is held movably.

A mating connector 910 is fixed to the surface of the second circuit board 991 and has a mating ground terminal 951 .

When the floating connector 810 and the mating connector 910 are engaged with each other, the upper contact portion 854a of the upper ground terminal 854 is pressed downward by the mating ground terminal 951 of the mating connector 910, and the lower contact portion of the upper ground terminal 854 is pressed downward. 854 b elastically contacts the upper surface of the upper contact portion 853 a of the lower ground terminal 853 . Thereby, the ground circuit of the first circuit board 891 and the ground circuit of the second circuit board 991 are electrically connected. Further, even if a positional deviation occurs between the floating connector 810 and the mating connector 910, it is reliably absorbed.

JP 2011-040206 A

However, in the above-described conventional connector, the ground terminal of the floating connector 810 is divided into the upper ground terminal 854 and the lower ground terminal 853, and the structure is complicated. not big. Therefore, if the distance between the first circuit board 891 and the second circuit board 991 changes greatly or changes rapidly, the contact state between the mating ground terminal 951 and the upper ground terminal 854 or the contact state between the upper ground terminal 854 and The contact state with the lower ground terminal 853 is released, and the electrical connection between the ground circuit of the first circuit board 891 and the ground circuit of the second circuit board 991 may be cut off.

The counterpart ground terminal 951, the upper ground terminal 854, and the lower ground terminal 853 are complicated in shape, and the counterpart ground terminal 951 formed between the ground circuit of the first circuit board 891 and the ground circuit of the second circuit board 991 is formed. , the upper ground terminal 854 and the lower ground terminal 853 are longer. Therefore, it is difficult to keep the ground circuit of the first circuit board 891 and the ground circuit of the second circuit board 991 at the same potential, and it is difficult to stabilize the ground.

Here, by solving the above conventional problems, the conductive path of the ground terminal is short, the degree of freedom of deformation of the ground terminal is high, the ground can be strengthened, and the mated state can be reliably maintained. To provide a connector that can be miniaturized, has a simple structure, has a small number of parts, is easy to manufacture, is low in cost, and has high reliability.

For this purpose, the connector comprises a first fixed housing, a first movable housing movable with respect to the first fixed housing, first signal terminals held by the first fixed housing and the first movable housing, a first connector including a fixed ground terminal held by the first fixed housing; a second fixed housing; a second signal terminal held by the second fixed housing and contactable with the first signal terminal; a second connector held by the second fixed housing and comprising a resilient ground terminal contactable with the fixed ground terminal, wherein the first signal terminals are plural and arranged in rows; the fixed ground terminal is held by the first fixed housing outside the arrangement direction of the first signal terminals; and the second signal terminals are plural and form a row. The elastic ground terminal is held by the second fixed housing outside the direction in which the second signal terminals are arranged, and is elastically deformable in the fitting direction of the first connector and the second connector. be.

In another connector, the elastic ground terminal further includes a substrate fixing portion that can be fixed to a substrate, an elastic deformation portion that can be elastically deformed, and a contact portion that can come into contact with the fixed ground terminal.

In still another connector, the second connector further includes a fixing member that can be fixed to the board, and the fixing member and the board fixing portion are arranged on opposite sides of the second fixed housing in the width direction. is set.

In still another connector, the elastically deformable portion further includes a substrate connecting portion that can contact a connection pad on the surface of the substrate.

In still another connector, the elastic ground terminals are a pair, and the elastic ground terminals are symmetrical with respect to the central points of the longitudinal direction and the width direction of the second connector when viewed in the fitting direction. It is arranged so as to be point symmetrical with

According to the present disclosure, it is possible to shorten the conductive path of the ground terminal, increase the degree of freedom of deformation of the ground terminal, and strengthen the ground. Moreover, the mated state can be reliably maintained, and the size of the connector can be reduced. Furthermore, the structure is simple, the number of parts is small, the manufacturing is easy, the cost can be reduced, and the reliability is improved.

FIG. 4 is a perspective view showing the first connector and the second connector before mating according to the embodiment; FIG. 4 is a perspective view showing the first connector and the second connector in a fitted state according to the present embodiment, where (a) is a perspective view and (b) is a top view; FIG. 2 is a first two-sided view of the first connector in the present embodiment, where (a) is a top view and (b) is a bottom view. FIG. 3B is a second two-sided view of the first connector in the present embodiment, where (a) is a side view and (b) is a front view; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a first connector according to the present embodiment, where (a) is a perspective view of the first connector viewed from diagonally above, and (b) is a perspective view of the first connector viewed diagonally from below; 4 is an exploded view of the first connector in the embodiment; FIG. FIG. 12 is a first two-sided view of the second connector in the present embodiment, where (a) is a top view and (b) is a bottom view. FIG. 4A is a second two-sided view of the second connector according to the present embodiment, where (a) is a side view and (b) is a front view; FIG. 4 is a perspective view of a second connector according to the present embodiment, where (a) is a perspective view of the second connector viewed from diagonally above, and (b) is a perspective view of the second connector viewed diagonally from below. FIG. 4 is an exploded view of a second connector according to the embodiment; 3A and 3B are trihedral views showing the first connector and the second connector in a state immediately before mating in the present embodiment, where (a) is a side view, (b) is a cross-sectional view taken along the line AA of (a), and (c) ) is a cross-sectional view taken along line BB in (a). Fig. 3 is a trihedral view showing the first connector and the second connector in a fitted state according to the present embodiment, where (a) is a side view, (b) is a cross-sectional view taken along line CC of (a), (c ) is a cross-sectional view taken along line DD of (a). 1 is a cross-sectional view showing a conventional mated board-to-board connector; FIG.

Hereinafter, this embodiment will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing a first connector and a second connector in a state before mating in this embodiment, and FIG. 2 is a perspective view showing a first connector and a second connector in a state in which they are mated in this embodiment. 3 is a first dihedral view of the first connector in this embodiment, FIG. 4 is a second dihedral view of the first connector in this embodiment, and FIG. 5 is the first connector in this embodiment. , and FIG. 6 is an exploded view of the first connector in this embodiment. 2, (a) is a perspective view, (b) is a top view, in FIG. 3, (a) is a top view, (b) is a bottom view, and in FIG. 4, (a) is a In FIG. 5, (a) is a perspective view of the first connector seen from above, and (b) is a perspective view of the first connector seen from below.

In the figure, reference numeral 10 denotes a first connector as one side of a board-to-board connector 1, which is a connector in this embodiment. The first connector 10 is a surface-mounted receptacle connector mounted on the surface of a first substrate 91, which is a substrate as a mounting member, and is mated with a second connector 101 as a mating connector. be. The first connector 10 is a so-called floating type connector, and includes a first fixed housing 11 as a fixed housing fixedly attached to the surface of the first substrate 91 and a and a first movable housing 31 as a movable housing.

On the other hand, the second connector 101 is the other side of the board-to-board connector 1, and is a surface mount type plug connector mounted on the surface of a second board 191, which is a board as a mounting member and will be described later. The second connector 101 is not a so-called floating type connector, but has only a second fixed housing 111 as a mating housing, which is a fixed housing fixedly attached to the surface of the second substrate 191, and has a movable housing. Not ready.

The first connector 10 and the second connector 101 of the connector pair in this embodiment are preferably used for electrically connecting the first substrate 91 and the second substrate 191 as substrates. but can also be used to electrically connect other components. The first board 91 and the second board 191 are, for example, a printed circuit board, a flexible flat cable (FFC), a flexible circuit board (FPC), etc. used in electronic equipment, etc., but any kind of board may be used. good too.

In this embodiment, directions such as up, down, left, right, front, and back are used to describe the configuration and operation of each part of the first connector 10 and the second connector 101 of the connector pair. The expression is relative rather than absolute, and is appropriate when each part of the first connector 10 and the second connector 101 is in the posture shown in the figure, but when the posture changes, should be interpreted differently according to changes in posture.

As shown in FIGS. 3 and 4, the first connector 10 is configured to be bilaterally symmetrical when viewed in the width direction (Y-axis direction). configured to be symmetrical. The first fixed housing 11 and the first movable housing 31 of the first connector 10 are members integrally formed of an insulator (dielectric) such as synthetic resin.

The first fixed housing 11 is a substantially rectangular square basin-like member, and includes a rectangular plate-like bottom plate portion 11c extending in the longitudinal direction (X-axis direction) of the first connector 10, and the bottom plate portion 11c. A pair of short sides each extending in the width direction (Y-axis direction) of the first connector 10 are formed to stand upward (positive direction of the Z-axis) from each of a pair of short sides at both ends in the longitudinal direction of the first connector 10 . A pair of long walls 11b formed to stand upward from each of a pair of long sides at both ends in the width direction of the wall portion 11a and the bottom plate portion 11c and extending in the longitudinal direction of the first connector 10 respectively. and A movable housing accommodation recess 14 is formed on the upper surface side of the bottom plate portion 11c. The movable housing housing recess 14 is a shallow recess having a rectangular shape in a plan view. A lower side surface of the bottom plate portion 11 c is a mounting surface 11 d of the first fixed housing 11 facing the surface of the first substrate 91 .

Further, the first fixed housing 11 has ground terminal mounting portions 12 for mounting fixed ground terminals 51 as first ground terminals functioning as housing fixing metal fittings on both width direction side edges in the vicinity of both longitudinal ends thereof. . The ground terminal mounting portion 12 is formed to protrude outward in the width direction of the first connector 10 from the outer surface of the long wall portion 11b. A ground terminal holding concave portion 12a for holding the held portion 52 of the fixed ground terminal 51 is formed in each ground terminal mounting portion 12 so as to be recessed inward in the width direction. Each of the ground terminal holding recesses 12a is an elongated groove-shaped recess extending in the vertical direction (Z-axis direction) formed on both sides in the width direction of the ground terminal mounting portion 12. The holding portion 52 is accommodated and held.

Further, the first fixed housing 11 has signal terminal attachments for attaching fixed side held portions 62 of the first signal terminals 61, which are the signal terminals of the first connector 10, to both side edges in the width direction in the vicinity of the center in the longitudinal direction. It has a part 13 . The signal terminal mounting portion 13 is formed to protrude outward in the width direction of the first connector 10 from the outer surface of the long wall portion 11b, but the amount of projection is smaller than that of the ground terminal mounting portion 12. . The ground terminal mounting portions 12 are positioned on both sides of the signal terminal mounting portions 13 in the longitudinal direction of the first connector 10 . A plurality of signal terminal fixed-side holding recesses 13a for holding the fixed-side held portion 62 of the first signal terminal 61 are formed in each signal terminal mounting portion 13 so as to be recessed inward in the width direction. there is Each of the signal terminal fixing side holding recesses 13a is an elongated groove-shaped recess formed on both sides in the width direction of the signal terminal mounting portion 13 and extending in the vertical direction. The held portion 62 is accommodated and held. In the example shown in the figure, 30 signal terminal fixing side holding recesses 13 a are formed on each of the left and right sides of the first fixed housing 11 , but the number is changed according to the number of the first signal terminals 61 . be done.

The first movable housing 31 has a pair of ends 32 located at both ends in the longitudinal direction, and a central wall portion 33 to which both ends in the longitudinal direction are connected to each end 32 . Each end portion 32 includes an end wall portion 32a extending in the vertical direction and an outward projecting portion 32b projecting outward in the longitudinal direction of the first movable housing 31 from the lower end of the end wall portion 32a. contains.

When the lower surface of the outward projecting portion 32b abuts the upper surface of the bottom plate portion 11c in a state in which the first movable housing 31 is accommodated in the movable housing accommodating recess 14 of the first fixed housing 11, the upper surface of the outward projecting portion 32b and the lower surface of the beam portion 55 of the fixed ground terminal 51 attached to the first fixed housing 11 . As a result, the beam portion 55 of the fixed ground terminal 51 functions as an upward movement restricting portion that restricts the upward movement of the first movable housing 31 while slightly permitting it. functions as an upward movement restricted part.

The central wall portion 33 includes a pair of left and right wall members 33a, which are plate-shaped members extending in the vertical direction and the longitudinal direction of the first movable housing 31, and a bottom plate 33c connecting the lower ends of the left and right wall members 33a to each other. , and a hollow portion 33b formed between a pair of left and right wall members 33a, both longitudinal ends of which are defined by the longitudinal inner side surfaces of the end wall portions 32a, the lower end of which is closed by a bottom plate 33c, and the upper end of which is open. I'm in. A signal terminal contact portion accommodating recess 37 for accommodating the contact portion 65 of the first signal terminal 61 is formed on the inner side surface in the width direction of the wall member 33a. Each signal terminal contact portion accommodating recess 37 is an elongated groove-shaped recess extending in the vertical direction, and the contact portion 65 of each first signal terminal 61 is accommodated and held therein. Further, the bottom plate 33c is formed with signal terminal movable side holding recesses 38 for holding the movable side held portions 66 of the first signal terminals 61 so as to be connected to the lower ends of the respective signal terminal contact portion housing recesses 37. ing. The signal terminal movable side holding concave portion 38 extends vertically to penetrate the bottom plate 33c, and accommodates and holds the movable side held portion 66 of each first signal terminal 61 therein.

Each of the plurality of first signal terminals 61 is an elastic, elongated rod-shaped member integrally formed by punching, bending, or otherwise processing a conductive metal plate, as shown in FIG. , a fixed-side held portion 62, a tail portion 63 as a board connecting portion connected to the lower end of the fixed-side held portion 62, a bent portion 64 connected to the upper end of the fixed-side held portion 62, A movable-side held portion 66 connected to the upper end of the bent portion 64 and a contact portion 65 connected to the upper end of the movable-side held portion 66 are included.

The plurality of first signal terminals 61 are arranged to form a row. In the example shown in the figure, the first signal terminals 61 are arranged at a predetermined pitch (for example, 0.3 to 0.5 [mm]) so as to form a pair of left and right rows extending in the longitudinal direction of the first connector 10 . ), and 30 of them are arranged side by side. The number and pitch of the first signal terminals 61 can be changed as appropriate. In addition, when viewed in the longitudinal direction of the first connector 10, the left and right rows of the first signal terminals 61 are arranged symmetrically. Each of the first signal terminals 61 is formed by bending a plate member extending in a plane parallel to the longitudinal direction of the first connector 10 in the cross section (YZ plane) of the first connector 10. formed.

The tail portion 63 is bent about 90 degrees and connected to the fixed-side held portion 62 extending in the vertical direction, and extends outward in the width direction of the first fixed housing 11 . The lower surface thereof is substantially flush with the mounting surface 11d, which is the lower surface of the first fixed housing 11, and is soldered to signal connection pads 92S, which are connection pads 92 formed on the surface of the first substrate 91, which will be described later. It is connected and fixed by means such as attaching. The signal connection pads 92S are typically connected to conductive traces forming signal lines for transmitting signals on the first substrate 91. FIG. Further, as shown in FIG. 3(a), at least the tip of the tail portion 63 is positioned outside the signal terminal mounting portion 13 of the first fixed housing 11 in the width direction and is visible when viewed from above. and arranged in a row extending in the longitudinal direction of the first connector 10 along the long wall portion 11b. Therefore, in the work of mounting the first connector 10 on the surface of the first substrate 91, the operator can easily visually recognize the connection state of the tail portion 63 to the signal connection pads 92S formed on the surface of the first substrate 91. be able to. Further, the tail portion 63 is set so that the amount of the tip thereof protruding outward in the width direction from the signal terminal mounting portion 13 is small and the length thereof is short. Thereby, an increase in the impedance of the first signal terminal 61 can be prevented.

As shown in FIG. 6, the bent portion 64 is a meandering bent portion when viewed from the longitudinal direction (X-axis direction) of the first connector 10 and functions as an elastic deformation portion. The bent portion 64 includes a first straight portion 64a1, a second straight portion 64a2 and a third straight portion 64a3 as straight portions, and a first curved portion 64b1 and a third straight portion 64b1 as curved portions bent 90 degrees or more. It includes a two-curved portion 64b2. The first linear portion 64a1 is a portion that extends a short distance in the vertical direction, with its upper end connected to the lower end of the movable-side held portion 66 and its lower end connected to the first curved portion 64b1. The second straight portion 64 a 2 is a portion that is connected to the first curved portion 64 b 1 and the second curved portion 64 b 2 at both ends and extends in a direction inclined with respect to the width direction of the first fixed housing 11 . Further, the third linear portion 64a3 is a portion that extends vertically, with its upper end connected to the second curved portion 64b2 and its lower end connected to the upper end of the fixed side held portion 62. As shown in FIG.

In this way, the lower end is connected to the fixed side held portion 62 held in the signal terminal fixed side holding recess 13 a of the first fixed housing 11 , and the upper end is held in the signal terminal movable side holding recess 38 of the first movable housing 31 . The bent portion 64 connected to the movable-side held portion 66 has a substantially S-shaped side surface, and the first linear portion 64a1, the second linear portion 64a2, and the third linear portion 64a3 are angled at 90 degrees. Since the first curved portion 64b1 and the second curved portion 64b2 that are bent as described above are connected, the portion that is not constrained by the first fixed housing 11 or the first movable housing 31, that is, the portion that is freely elastically The length of the deformable portion is increased. Therefore, the bent portion 64 existing between the signal terminal fixed side holding recess 13 a and the signal terminal movable side holding recess 38 can be flexibly deformed, and the first movable housing 31 is flexible with respect to the first fixed housing 11 . can be moved to Moreover, the bent portion 64 can be deformed without interfering with the first fixed housing 11 and the first movable housing 31 . Therefore, the first movable housing 31 is arranged relative to the first fixed housing 11 in the span direction of the first signal terminals 61 , that is, the width direction of the first connector 10 , and the pitch direction of the first signal terminals 61 , that is, the first connector 10 . 1 connector 10 can be moved in the longitudinal direction. Furthermore, the first movable housing 31 can also tilt in the span direction of the first signal terminals 61 with respect to the first fixed housing 11 .

The contact portion 65 of each first signal terminal 61 is a portion that contacts the second signal terminal 161 of the second connector 101, which is the counterpart signal terminal. and a linear rod-like or band-like portion having substantially constant dimensions in the thickness direction (Y-axis direction), and is accommodated in the signal terminal contact portion accommodation recess 37 . The contact portion 65 is inserted from below the bottom plate 33c of the first movable housing 31 into the signal terminal contact portion accommodating recess 37 through the signal terminal movable side holding recess 38 and accommodated therein.

Further, the movable-side held portion 66 connected to the lower end of the contact portion 65 of each first signal terminal 61 has a rectangular cross-sectional shape, and the width direction (X-axis direction) and thickness direction (Y-axis direction) thereof are It is a linear rod-like or belt-like portion with approximately constant dimensions, and preferably includes a plurality of projections projecting outward in the width direction from both side surfaces in the width direction. As a result, the left and right projections of the movable-side held portion 66 inserted into the signal terminal movable-side holding recess 38 from below the bottom plate 33c of the first movable housing 31 are attached to the left and right wall surfaces of the signal terminal movable-side holding recess 38. It bites in and is held stably.

Further, the fixed-side held portion 62 of each first signal terminal 61 has a rectangular cross-sectional shape, and has a linear rod-like shape or a constant width direction (X-axis direction) and thickness direction (Y-axis direction). It is a strip-shaped portion, and preferably includes a plurality of projections projecting outward in the width direction from both side surfaces in the width direction. As a result, the left and right projections of the fixed side held portion 62 of the first signal terminal 61 inserted from above into the signal terminal fixed side holding recess 13a bite into the left and right wall surfaces of the signal terminal fixed side holding recess 13a. Remain stable.

The fixed ground terminal 51 is a member integrally formed by punching and bending a conductive metal plate, and is used for connecting the ground lines of the first substrate 91 and the second substrate 191 . In addition to the function as a terminal, it also exhibits a function of securely fixing the first fixed housing 11 to the first substrate 91 and a function of restricting upward movement of the first movable housing 31 . As shown in FIG. 6, the fixed ground terminals 51 are members attached near both ends in the longitudinal direction (X-axis direction) of the first fixed housing 11 on the outside in the direction in which the first signal terminals 61 are arranged. , a flat strip-shaped beam portion 55 extending in the width direction (Y-axis direction) of the first fixed housing 11 and both ends of the beam portion 55 are connected via an upper curved portion 52a curved approximately 90 degrees. and a tail portion 53 as a board connecting portion connected to the lower end of the held portion 52 via a lower curved portion 52b that curves approximately 90 degrees.

The beam portion 55 is a portion that functions as a contact portion that contacts a movable ground terminal 151 as an elastic ground terminal provided in the second connector 101 . This is the surface with which the contact portion 155 contacts.

The held portion 52 is a linear belt-like portion having a rectangular cross-sectional shape and approximately constant dimensions in the width direction (X-axis direction) and thickness direction (Y-axis direction). It includes a plurality of protrusions that protrude outward in the width direction from both side surfaces in the width direction. As a result, the held portion 52 of the fixed ground terminal 51 inserted into the ground terminal holding recess 12a from above is stably held by the left and right protrusions digging into the left and right wall surfaces of the ground terminal holding recess 12a.

Further, the tail portion 53 is connected to the held portion 52 extending in the vertical direction via a lower curved portion 52b that curves about 90 degrees, and extends outward in the width direction of the first fixed housing 11. procrastinate. Its bottom surface is substantially flush with the mounting surface 11d, which is the bottom surface of the first fixed housing 11, and is soldered to ground connection pads 92G, which are connection pads 92 formed on the surface of the first substrate 91, which will be described later. It is connected and fixed by means such as attaching. The ground connection pads 92G are connected to the conductive traces forming the ground lines of the first substrate 91. As shown in FIG. Further, as shown in FIG. 3A, the tail portion 53 is positioned within the ground terminal holding recess 12a of the ground terminal mounting portion 12 when viewed from above. Therefore, in the work of mounting the first connector 10 on the surface of the first substrate 91, the operator can easily visually confirm the connection state of the tail portion 53 to the ground connection pads 92G formed on the surface of the first substrate 91. be able to. Further, the tip of the tail portion 53 does not protrude outward from the widthwise outer surface of the ground terminal mounting portion 12 . Therefore, the mounting area of the first connector 10 on the surface of the first substrate 91 does not increase.

Moreover, as shown in FIG. 4B , the beam portion 55 is located above the upper surface of the first fixed housing 11 when the fixed ground terminal 51 is attached to the first fixed housing 11 . Moreover, the upper surface of the outward projecting portion 32b of the first movable housing 31, which is accommodated in the movable housing accommodating recess 14 of the first fixed housing 11 and whose lower surface is in contact with the upper surface of the bottom plate portion 11c, and the beam portion 55 A gap is formed between the lower surface of the As a result, the fixed ground terminal 51 or its beam portion 55 functions as an upward movement restricting portion that slightly permits and restricts the upward movement of the first movable housing 31, and the upper surface of the outward projecting portion 32b. functions as an upward movement restricted part.

Next, the configuration of the second connector 101 will be described.

FIG. 7 is a first dihedral view of the second connector in this embodiment, FIG. 8 is a second dihedral view of the second connector in this embodiment, and FIG. 9 is the second connector in this embodiment. A perspective view and FIG. 10 are exploded views of the second connector according to the present embodiment. 7, (a) is a top view, (b) is a bottom view, in FIG. 8, (a) is a side view, (b) is a front view, and in FIG. 9, (a) is a FIG. 8B is a perspective view of the second connector as seen from obliquely above, and FIG. 8B is a perspective view of the second connector as seen from obliquely below;

In the present embodiment, the second connector 101 is symmetrical about the central points in the longitudinal direction (X-axis direction) and the width direction (Y-axis direction) when viewed in the vertical direction (Z-axis direction) (plan view). (center of symmetry). The second fixed housing 111 of the second connector 101 is a member integrally formed of an insulator (dielectric) such as synthetic resin.

The second fixed housing 111 has a substantially rectangular parallelepiped shape as shown in the figure. On the side of the second fixed housing 111 that is fitted with the first connector 10 , i.e., on the upper side (the Z-axis negative direction side), there is a substantially rectangular concave portion surrounded by the first movable housing 31 . A mating recess 112 is formed as a mating housing receiving recess in which at least a portion is received. A second convex portion 113 as an island portion to be fitted with the hollow portion 33b of the first movable housing 31 is formed integrally with the second fixed housing 111 in the fitting concave portion 112. Side walls 114 extending parallel to the second protrusion 113 are formed integrally with the second fixed housing 111 on both sides of the protrusion 113 . The second convex portion 113 and the side wall portion 114 extend in the longitudinal direction of the second connector 101 . As a result, on both sides of the second convex portion 113, a concave groove portion 112a, which is an elongated concave portion extending in the longitudinal direction (X-axis direction) of the second connector 101, is formed as a part of the fitting concave portion 112. . The second convex portion 113 is formed to protrude upward (in the negative direction of the Z-axis) from the side wall portion 114 , and the upper surface 113 a of the second convex portion 113 is located above the upper surface 114 a of the side wall portion 114 . To position.

A lower end of the fitting recess 112 is closed by a bottom plate portion 111 c , and a lower side surface of the bottom plate portion 111 c is a mounting surface 111 d of the second fixed housing 111 facing the surface of the second substrate 191 . The bottom plate portion 111c does not necessarily cover the entire lower end of the fitting recess 112. For example, the bottom plate portion 111c may cover only the lower ends near both ends of the fitting recess 112 in the longitudinal direction.

On both side surfaces of the second protrusion 113, groove-like signal terminal contact portion accommodating recesses 115a are formed, and on the lower surface of the side wall portion 114, groove-like signal terminal holding recesses 115b are formed. A second signal terminal 161, which is a signal terminal of the second connector 101, is accommodated in each of the signal terminal contact portion accommodation recesses 115a and each of the signal terminal holding recesses 115b. When the signal terminal contact portion accommodating recess 115a and the signal terminal holding recess 115b are collectively described, they will be referred to as the second signal terminal accommodating recess 115. As shown in FIG. As a result, the second signal terminals 161 are arranged at a predetermined pitch (for example, about 0.3 to 0.5 [mm]) so as to form a pair of left and right rows extending in the longitudinal direction of the second connector 101. A plurality (30 in the example shown in the figure) are arranged side by side. Note that the number and pitch of the second signal terminals 161 can be changed as appropriate. Further, when viewed in the longitudinal direction of the second connector 101, the left and right rows of the second signal terminals 161 are arranged symmetrically.

Each of the second signal terminals 161 is a member integrally formed by stamping a conductive metal plate, and as shown in FIG. A tail portion 163 as a board connection portion connected to the lower end of the holding portion 162 and a tail portion 163 extending from the vicinity of the lower end of the held portion 162 toward the center in the width direction (Y-axis direction) of the second connector 101 and then bent. , and includes a connecting portion 164 extending upward, and a contact portion 165 formed so as to protrude toward the held portion 162 in the vicinity of the tip (upper end) of the connecting portion 164 . It is desirable that the retained portion 162 is formed with a locked projection portion 162a projecting upward. The second signal terminal 161 is inserted into the second signal terminal accommodating recess 115 from below the mounting surface 111d (positive direction of the Z-axis). As a result, the held portion 162 is accommodated in the signal terminal holding recess 115b, and preferably, the locked protrusion 162a bites into the signal terminal holding recess 115b and is stably held. A portion of the connection portion 164 near the contact portion 165 is accommodated in the signal terminal contact portion accommodating recess 115a, and at least a portion of the contact portion 165 protrudes into the recessed groove portion 112a.

The tail portion 163 extends outward in the width direction of the second fixed housing 111 from the lower end of the held portion 162 . The lower surface thereof is substantially flush with the mounting surface 111d of the second fixed housing 111, and is soldered to signal connection pads 192S, which are connection pads 192 formed on the surface of the second substrate 191, to be described later. Connected and fixed by means. The signal connection pads 192S are typically connected to conductive traces forming signal lines for transmitting signals on the second substrate 191. FIG. Further, as shown in FIG. 7A, when viewed from above, at least the tip of the tail portion 163 is positioned outside the side wall portion 114 of the second fixed housing 111 in the width direction and is visible. and arranged in a row extending in the longitudinal direction of the second connector 101 along the side wall portion 114 . Therefore, in the work of mounting the second connector 101 on the surface of the second substrate 191, the operator can easily visually recognize the connection state of the tail portion 163 to the signal connection pads 192S formed on the surface of the second substrate 191. be able to. Further, the tail portion 163 is set so that the tip thereof protrudes outward in the width direction from the side wall portion 114 by a small amount and has a short length. Thereby, an increase in the impedance of the second signal terminal 161 can be prevented.

Also, the second fixed housing 111 is provided with second projecting end portions 121 at both longitudinal ends thereof. Each second projecting end portion 121 has a ground terminal mounting portion 122 for mounting a movable ground terminal 151 as a second ground terminal. The ground terminal mounting portion 122 is formed wide, and both side surfaces in the width direction thereof are positioned outward in the width direction from the outer side surfaces in the width direction of the side wall portion 114 . The ground terminal mounting portion 122 includes a ground terminal accommodating recess portion 122 a that accommodates at least a portion of the bent portion 154 of the movable ground terminal 151 and a recess portion that accommodates the held portion 152 of the movable ground terminal 151 . It includes a ground terminal holding recess 122b and an auxiliary metal fitting holding recess 122c which is a recess for accommodating a held portion 172 of an auxiliary metal fitting 171 which functions as a fixing member for fixing to the second fixed housing 111. FIG.

The ground terminal accommodating recess 122a is a through hole having a rectangular cross section and passing through the ground terminal mounting part 122 in the vertical direction (Z-axis direction). The ground terminal holding recess 122b is formed adjacent to the ground terminal accommodating recess 122a and extends vertically at a position overlapping the ground terminal accommodating recess 122a when viewed from the width direction of the second fixed housing 111. It is an elongated groove-shaped concave portion. Further, the auxiliary fitting holding recess 122c is a vertically extending elongated groove formed adjacent to the ground terminal accommodating recess 122a nearer to the longitudinal center of the second fixed housing 111 than the ground terminal accommodating recess 122a. It is a recessed part of the shape. The ground terminal holding recess 122b and the auxiliary fitting holding recess 122c are arranged on opposite sides of the second fixed housing 111 in the width direction. In addition, the ground terminal holding recesses 122b formed at one end and the other end of the second fixed housing 111 in the longitudinal direction are arranged on opposite sides of the second fixed housing 111 in the width direction. Further, the auxiliary metal fitting holding recesses 122c formed at one end and the other end of the second fixed housing 111 in the longitudinal direction are arranged on opposite sides of the second fixed housing 111 in the width direction.

Further, the second projecting end portion 121 includes a partition wall portion 123 formed between the ground terminal mounting portion 122 and the fitting recess portion 112 . The partition wall portion 123 is formed in a U shape when viewed in the vertical direction, and defines both end surfaces of the fitting recess 112 and both side surfaces adjacent to the both end surfaces. In addition, the partition wall portion 123 is formed to protrude higher than other portions of the second protruding end portion 121, and the upper surface 123a of the partition wall portion 123 is higher than the upper surface 121a of the second protruding end portion 121. Located in Moreover, the upper surface 123 a of the partition wall portion 123 is located above the upper surface 113 a of the second convex portion 113 . In addition, the upper surface 121a of the second projecting end portion 121 has substantially the same height as the upper surface 114a of the side wall portion 114 .

The movable ground terminal 151 is a member integrally formed by punching, bending, or otherwise processing a conductive metal plate. Z-axis direction), and in addition to functioning as a terminal for connecting the ground lines of the first board 91 and the second board 191, it also functions to fix the second fixed housing 111 to the second board 191. also demonstrate. As shown in FIG. 10, the movable ground terminal 151 includes a held portion 152, a tail portion 153 as a substrate fixing portion connected to the lower end of the held portion 152, and a tail portion 153 connected to the lower end of the held portion 152. It includes a connected bent portion 154 and a contact portion 155 connected to the upper end of the bent portion 154 . The movable ground terminals 151 are arranged one by one in the ground terminal mounting portions 122 of the second projecting end portion 121 at both longitudinal ends of the second connector 101 . Each movable ground terminal 151 is formed by bending a plate member extending in a plane parallel to the longitudinal direction of the second connector 101 in the cross section (YZ plane) of the second connector 101. It is

The tail portion 153 is connected to the vertically extending held portion 152 by bending about 90 degrees, and extends outward in the width direction of the second fixed housing 111 . The lower surface thereof is substantially flush with the mounting surface 111d of the second fixed housing 111, and is attached to a fixing connection pad 192F, which is a connection pad 192 formed on the surface of the second substrate 191 to be described later, by soldering or the like. Connected and fixed by means. The fixed connection pads 192F are typically not connected to the conductive traces of the second substrate 191 .

As shown in FIG. 7A, the tail portion 153 is located inside the ground terminal holding recess 122b when viewed from above. Therefore, in the work of mounting the second connector 101 on the surface of the second substrate 191, the operator can easily visually confirm the connection state of the tail portion 153 to the fixing connection pads 192F formed on the surface of the second substrate 191. be able to. Further, the tip of the tail portion 153 does not protrude outward from the widthwise outer surface of the ground terminal mounting portion 122 . Therefore, the mounting area of the second connector 101 on the surface of the second board 191 does not increase.

As shown in FIG. 10, the bent portion 154 is a portion that is greatly curved when viewed from the longitudinal direction (X-axis direction) of the second connector 101 and functions as an elastic deformation portion. The bent portion 154 includes a first linear portion 154a1, a second linear portion 154a2, a third linear portion 154a3, and a fourth linear portion 154a4 as linear portions, and a first curved portion as a bent curved portion. 154b1, a second curved portion 154b2, a third curved portion 154b3 and a fourth curved portion 154b4. The first linear portion 154a1 has an upper end connected to the contact portion 155 and a lower end connected to the first curved portion 154b1. It is an extended part. Further, the second linear portion 154a2 is a portion that is connected at both ends to the first curved portion 154b1 and the second curved portion 154b2 and extends substantially in the vertical direction (Z-axis direction). Further, the third linear portion 154a3 is a portion that extends substantially in the width direction of the second connector 101, with both ends connected to the second curved portion 154b2 and the third curved portion 154b3. Further, the fourth linear portion 154a4 has a lower end connected to the third curved portion 154b3 and an upper end connected to the upper end of the held portion 152 via the fourth curved portion 154b4. It is a portion extending in a direction oblique to the direction.

In this manner, the bent portion 154 having one end connected to the held portion 152 held in the ground terminal holding recess 122b of the second fixed housing 111 and the contact portion 155 connected to the other free end is the second ground terminal holding portion 154. When viewed from the longitudinal direction of the connector 101, it has a U-shaped curved shape that bulges downward and is not constrained by the second fixed housing 111, that is, it is freely elastically deformable. The length of the possible part is increased. Therefore, since the bent portion 154 functioning as a spring has a long spring length, it can exert a strong spring force and can be flexibly deformed. can flexibly move with respect to the second fixed housing 111 .

Most of the bent portion 154 is accommodated in the ground terminal accommodating recess 122a except for the first straight portion 154a1, the first curved portion 154b1 and the fourth curved portion 154b4. The dimensions of the ground terminal accommodating recess 122a in the longitudinal direction of the second connector 101 are the second straight portion 154a2, the third straight portion 154a3, the fourth straight portion 154a4, the second curved portion 154b2, and the third curved portion 154b2 of the bent portion 154. It is set to be slightly larger than the longitudinal dimension of the second connector 101 of the curved portion 154b3. Therefore, the contact portion 155 connected to the free end of the bent portion 154 is connected to the second fixed housing 111 in the span direction of the second signal terminal 161 , that is, in the width direction of the second connector 101 and in the fitting direction. That is, although it can be displaced over a wide range in the vertical direction, there is almost no displacement in the pitch direction of the second signal terminals 161 , that is, in the longitudinal direction of the second connector 101 .

The third linear portion 154a3 extending substantially in the width direction of the second connector 101 functions as a substrate connection portion 156, and its lower surface is a connection pad 192 formed on the surface of a second substrate 191 to be described later. It can be connected in contact with the ground connection pad 192G. The ground connection pads 192G are typically connected to conductive traces forming ground lines on the second substrate 191 . As shown in FIGS. 7 to 9, the second connector 101 is not mated with the first connector 10 and no external force is applied to the contact portion 155 of the movable ground terminal 151, that is, in the initial state. , the lower surface of the third linear portion 154a3 as the board connection portion 156 is located above (Z-axis negative direction) the mounting surface 111d of the second fixed housing 111 and does not contact the ground connection pad 192G. However, the second connector 101 is mated with the first connector 10, and the contact portion 155 of the movable ground terminal 151 contacts the beam portion 55 of the fixed ground terminal 51 of the first connector 10 and moves downward (Z-axis positive direction). , the third linear portion 154a3 is also displaced downward, and the lower surface thereof comes into contact with the ground connection pad 192G to conduct.

The auxiliary fitting 171 is a member integrally formed by stamping and bending a metal plate, and is a member for securely fixing the second fixed housing 111 to the second substrate 191 . As shown in FIG. 10, the auxiliary metal fitting 171 includes a flat plate-like held portion 172 extending in the vertical direction, and a substrate connected to the lower end of the held portion 172 by bending about 90 degrees. and a tail portion 173 as a fixed portion.

The held portion 172 is a linear belt-like portion having a rectangular cross-sectional shape and approximately constant dimensions in the width direction (X-axis direction) and thickness direction (Y-axis direction). It includes a plurality of protrusions that protrude outward in the width direction from both side surfaces. As a result, the held portion 172 of the auxiliary metal fitting 171 inserted into the auxiliary metal fitting holding recess 122c from above is held stably by the left and right protrusions biting into the left and right wall surfaces of the auxiliary metal fitting holding recess 122c.

The tail portion 173 is connected to the vertically extending held portion 172 by bending about 90 degrees and extends outward in the width direction of the second fixed housing 111 . The lower surface thereof is substantially flush with the mounting surface 111d of the second fixed housing 111, and is attached to a fixing connection pad 192F, which is a connection pad 192 formed on the surface of the second substrate 191 to be described later, by soldering or the like. Connected and fixed by means. The fixed connection pads 192F are typically not connected to the conductive traces of the second substrate 191 .

As shown in FIG. 7A, when viewed from above, the tail portion 173 is positioned within the auxiliary fitting holding recess 122c. Therefore, in the work of mounting the second connector 101 on the surface of the second substrate 191, the operator can easily visually confirm the connection state of the tail portion 173 to the fixing connection pads 192F formed on the surface of the second substrate 191. be able to. Further, the tip of the tail portion 173 does not protrude outward from the widthwise outer surface of the ground terminal mounting portion 122 . Therefore, the mounting area of the second connector 101 on the surface of the second board 191 does not increase.

The auxiliary metal fitting 171 is arranged near the center of the second fixed housing 111 in the longitudinal direction from the movable ground terminal 151 so as to be adjacent to the movable ground terminal 151 . Further, the auxiliary metal fitting 171 and the held portion 152 of the movable ground terminal 151 are arranged on opposite sides of the second fixed housing 111 in the width direction. Further, the pair of movable ground terminals 151 and the pair of auxiliary metal fittings 171 are arranged in the longitudinal direction (X-axis direction) and the width of the second connector 101 when viewed in the vertical direction (Z-axis direction) (plan view). They are arranged so as to be symmetrical about the center point of the direction (Y-axis direction) as the symmetrical point (center of symmetry). As a result, the auxiliary metal fitting 171 effectively supplements the function of fixing the second fixed housing 111 to the second board 191 by the movable ground terminal 151, and exhibits the function of fixing the second fixed housing 111 to the second board 191. can do. Therefore, the second fixed housing 111 can be reliably fixed to the second board 191 by the movable ground terminal 151 and the auxiliary metal fittings 171 .

Next, the operation of fitting the first connector 10 and the second connector 101 having the above configuration will be described.

FIG. 11 is a trihedral view showing the first connector and the second connector in a state immediately before mating in this embodiment, and FIG. 12 is a trihedral view showing the first connector and the second connector in a mated state in this embodiment. be. In FIG. 11, (a) is a side view, (b) is a cross-sectional view taken along line AA of (a), and (c) is a cross-sectional view taken along line BB of (a). , (a) is a side view, (b) is a sectional view taken along line CC of (a), and (c) is a sectional view taken along line DD of (a).

As shown in FIGS. 11(b) and 11(c), the first connector 10 is such that the tail portion 63 of the first signal terminal 61 and the tail portion 53 of the fixed ground terminal 51 are connected to the surface of the first substrate 91 for signal connection. It is assumed to be surface-mounted on the first substrate 91 by being connected to the pad 92S and the ground connection pad 92G by soldering. Similarly, in the second connector 101 , the tail portion 163 of the second signal terminal 161 , the tail portion 153 of the movable ground terminal 151 , and the tail portion 173 of the auxiliary metal fitting 171 are connected to signal connection pads 192 S on the surface of the second substrate 191 . and the fixing connection pads 192F are surface-mounted on the second substrate 191 by soldering. 11A and 12A, illustration of the first substrate 91 and the second substrate 191 is omitted for convenience.

First, the operator places the mating surface of the first connector 10 (upper side surface in FIG. 1) and the mating surface of the second connector 101 (lower side surface in FIG. 1) facing each other. The position of the second protrusion 113 on the second fixed housing 111 is adjusted to match the position of the hollow portion 33b on the central wall portion 33 of the first movable housing 31 of the first connector 10 . This completes alignment between the first connector 10 and the second connector 101, as shown in FIG.

In this state, when the first connector 10 and/or the second connector 101 are moved in the direction of approaching the mating side, that is, in the mating direction, the second convex portion 113 of the second fixed housing 111 is moved to the position of the first movable housing 31 . The pair of wall members 33 a of the central wall portion 33 are inserted into the concave groove portions 112 a on both sides of the second convex portion 113 . Further, the contact portion 155 of the movable ground terminal 151 abuts on the fixed contact surface 55 a that is the upper surface of the beam portion 55 of the fixed ground terminal 51 and is displaced toward the second substrate 191 .

Thus, as shown in FIGS. 2 and 12, when the first connector 10 and the second connector 101 are mated, the first movable housing 31 and the second fixed housing 111 are mated to correspond to each other. The first signal terminal 61 and the second signal terminal 161 are electrically connected, and the fixed ground terminal 51 and the movable ground terminal 151 corresponding to each other are electrically connected.

Specifically, at least the portion near the upper end of the second convex portion 113 of the second fixed housing 111 enters the hollow portion 33b of the central wall portion 33 of the first movable housing 31, At least the portion near the upper end of the wall member 33a enters the concave groove portions 112a on both sides of the second convex portion 113. As shown in FIG. As a result, the tips of the contact portions 165 projecting from the connection portions 164 of the second signal terminals 161 housed in the signal terminal contact portion housing recesses 115a on both sides of the second protrusion 113 touch the width direction inner surface of the wall member 33a. contacts the contact portion 65 of the first signal terminal 61 accommodated in the signal terminal contact portion accommodating recess 37 formed in , thereby electrically connecting the first signal terminal 61 and the second signal terminal 161 . At this time, the connection portion 164 of the second signal terminal 161 functions as a cantilever, and the tip of the contact portion 165 is pressed against the surface of the contact portion 65 of the first signal terminal 61 by the elasticity of the cantilever. The conductive state between the 1 signal terminal 61 and the second signal terminal 161 is reliably maintained.

In addition, the ground terminal mounting portions 122 at both longitudinal ends of the second fixed housing 111 approach the ground terminal mounting portions 12 at both longitudinal ends of the first fixed housing 11, and the movable ground terminals attached to the ground terminal mounting portions 122 The contact portion 155 of 151 abuts on the fixed contact surface 55 a of the beam portion 55 of the fixed ground terminal 51 attached to the ground terminal mounting portion 12 and is displaced toward the second substrate 191 . Then, the bent portion 154 functioning as a spring is elastically deformed, and the third straight portion 154 a 3 extending substantially in the width direction of the second connector 101 in the bent portion 154 is displaced toward the second substrate 191 . functioning as a substrate connecting portion 156 and making contact with a ground connection pad 192</b>G formed on the surface of the second substrate 191 . As a result, the fixed ground terminal 51 and the movable ground terminal 151 are electrically connected, and the movable ground terminal 151 and the ground connection pad 192G are electrically connected. Therefore, the ground line of the first substrate 91 connected to the ground connection pad 92G to which the fixed ground terminal 51 is connected and the ground line of the second substrate 191 connected to the ground connection pad 192G are electrically connected to each other. equipotential.

At this time, when viewed from the longitudinal direction of the second connector 101, the bending portion 154, which has a U-shaped curved shape that bulges downward, has a long spring length and exerts a strong spring force. Since the portion 155 is pressed against the fixed contact surface 55a of the beam portion 55 and the substrate connection portion 156 is pressed against the ground connection pad 192G, the continuity between the fixed ground terminal 51 and the movable ground terminal 151 and the movable ground terminal 151 are maintained. The conductive state between 151 and ground connection pad 192G is reliably maintained. For example, when the first connector 10 and the second connector 101 are connected to each other, the standard distance between the first board 91 and the second board 191 is about 3 mm. Although it is considered that the distance between the first substrate 91 and the second substrate 191 changes greatly in this way, the bent portion 154 has a long spring length and a large amount of displacement. The contact portion 155 can reliably follow the displacement of the fixed ground terminal 51 of the first connector 10 mounted on the first substrate 91, and the conductive state between the fixed ground terminal 51 and the movable ground terminal 151 and the movable ground can be controlled. The conductive state between the terminal 151 and the ground connection pad 192G can be reliably maintained.

Furthermore, as shown in FIG. 12(c), a portion of the third straight portion 154a3 near the second curved portion 154b2 contacts the ground connection pad 192G, so that the fixed contact surface of the beam portion 55 at the bent portion 154 The conductive path from 55a to the ground connection pad 192G can be roughly said to be the sum of the length of the first straight portion 154a1, the length of the first curved portion 154b1, and the length of the second straight portion 154a2. It's getting shorter. Therefore, the conductive path connecting the ground connection pad 92G connected to the ground line of the first substrate 91 and the ground connection pad 192G connected to the ground line of the second substrate 191 is shortened, and the ground of the first substrate 91 is shortened. The line and the ground line of the second substrate 191 can be stably maintained at the same potential, and the ground can be stabilized and strengthened.

Furthermore, since the ground connection pad 192G is in contact with the third linear portion 154a3 that extends substantially in the width direction of the second connector 101 and is less inclined with respect to the surface of the second substrate 191, the ground connection pad 192G and the third linear portion 154a3 are in contact with each other. The 3-straight line portion 154a3 has a large contact area and a stable contact state. Further, since the third straight portion 154a3 is not soldered to the ground connection pad 192G, soldering is not necessary.

Furthermore, when the first connector 10 and the second connector 101 are fitted together, for example, the positional relationship between the first board 91 and the second board 191 changes, and the second connector is connected to the first connector 10 . 101 is displaced or subjected to an external force such as impact or vibration, the bent portion 154 of the movable ground terminal 151 and the bent portion 64 of the first signal terminal 61 are flexibly deformed and the second fixing is performed. Since the displacement of the first movable housing 31 fitted with the housing 111 with respect to the first fixed housing 11 is properly absorbed, the fitted state between the first connector 10 and the second connector 101 is maintained without being released. be.

Thus, in this embodiment, the board-to-board connector 1 includes the first fixed housing 11, the first movable housing 31 movable with respect to the first fixed housing 11, the first fixed housing 11 and the first A first connector 10 having a first signal terminal 61 held by the movable housing 31 and a fixed ground terminal 51 held by the first fixed housing 11, a second fixed housing 111, and held by the second fixed housing 111 and a second signal terminal 161 that can contact the first signal terminal 61, and a second connector 101 that is held by the second fixed housing 111 and includes a movable ground terminal 151 that can contact the fixed ground terminal 51. do. A plurality of first signal terminals 61 are arranged in a row, and the fixed ground terminal 51 is held by the first fixed housing 11 outside the arrangement direction of the first signal terminals 61, A plurality of second signal terminals 161 are arranged in a row, and the movable ground terminal 151 is held by the second fixed housing 111 outside the second signal terminals 161 in the arrangement direction. It is elastically deformable in the fitting direction of the connector 10 and the second connector 101 .

As a result, the conductive path of the fixed ground terminal 51 and the movable ground terminal 151 can be shortened, the degree of freedom of deformation of the movable ground terminal 151 can be increased, and the ground can be strengthened. Moreover, the mated state between the first connector 10 and the second connector 101 can be reliably maintained, and the size of the board-to-board connector 1 can be reduced. Moreover, the structure can be simplified, the number of parts can be reduced, the manufacturing can be facilitated, the cost can be reduced, and reliability can be improved.

Also, the movable ground terminal 151 includes a tail portion 153 that can be fixed to the second substrate 191 , a bent portion 154 that can be elastically deformed, and a contact portion 155 that can come into contact with the fixed ground terminal 51 . Therefore, the movable ground terminal 151 can be flexibly deformed and can reliably maintain contact with the fixed ground terminal 51 .

Furthermore, the second connector 101 further includes an auxiliary metal fitting 171 that can be fixed to the second substrate 191, and the auxiliary metal fitting 171 and the tail portion 153 are disposed on opposite sides of the second fixed housing 111 in the width direction. . Therefore, the second fixed housing 111 can be reliably fixed to the second board 191 .

Further, the bent portion 154 includes a substrate connection portion 156 that can contact the ground connection pad 192G on the surface of the second substrate 191 . Therefore, the conductive path in the movable ground terminal 151 is shortened, and the ground can be stabilized and strengthened.

Further, the movable ground terminals 151 are paired, and the respective movable ground terminals 151 are point symmetric with respect to each other with respect to the longitudinal and width directions of the second connector 101 when viewed in the fitting direction. are arranged as follows. Therefore, the second fixed housing 111 can be reliably fixed to the second board 191 .

It should be noted that this disclosure describes features of preferred exemplary embodiments. Various other embodiments, modifications and variations within the scope and spirit of the claims appended hereto will naturally occur to those skilled in the art upon reviewing the disclosure herein. be.

The present disclosure can be applied to connectors.

1 board-to-board connector 10 first connector 11 first fixed housing 11a short wall portion 11b long wall portions 11c, 111c bottom plate portions 11d, 111d mounting surfaces 12, 122 ground terminal mounting portions 12a, 122b ground terminal holding recess 13 signal terminal mounting portion 13a signal terminal fixing side holding recess 14 movable housing accommodating recess 31 first movable housing 32 end 32a end wall 32b outward projection 33 central wall 33a wall member 33b cavity 33c bottom plate 37 signal terminal contact portion accommodating recess 38 signal Terminal movable side holding concave portion 51 Fixed ground terminals 52, 152, 162, 172 Held portion 52a Upper curved portion 52b Lower curved portion 53, 63, 153, 163, 173 Tail portion 55 Beam portion 55a Fixed contact surface 61 First signal terminal 62 fixed side held portions 64, 154 bent portions 64a1, 154a1 first straight portions 64a2, 154a2 second straight portions 64a3, 154a3 third straight portions 64b1, 154b1 first curved portions 64b2, 154b2 second curved portions 65, 155, 165 contact portion 66 movable-side held portion 91 first substrates 92, 192 connection pads 92G, 192G ground connection pads 92S, 192S signal connection pads 101 second connector 111 second fixed housing 112 fitting concave portion 112a concave groove portion 113 2 convex portions 113a, 114a, 121a, 123a upper surface 114 side wall portion 115 second signal terminal accommodating recess portion 115a signal terminal contact portion accommodating recess portion 115b signal terminal holding recess portion 121 second projecting end portion 122a ground terminal accommodating recess portion 122c auxiliary fitting holding recess portion 123 Partition wall portion 151 Movable ground terminal 154a4 Fourth straight portion 154b3 Third curved portion 154b4 Fourth curved portion 156 Board connecting portion 161 Second signal terminal 162a Locked protrusion 164 Connecting portion 171 Auxiliary fitting 191 Second board 192F For fixing Connection pad 810 floating connector 853 lower ground terminals 853a, 854a upper contact portion 854 upper ground terminal 854b lower contact portion 861 signal terminal 891 first circuit board 910 mating connector 951 mating ground terminal 991 second circuit board

Claims (5)

(a) a first fixed housing, a first movable housing movable with respect to the first fixed housing, a first signal terminal held by the first fixed housing and the first movable housing, and the first fixed housing a first connector comprising a fixed ground terminal retained in the housing;
(b) a second fixed housing, a second signal terminal held by the second fixed housing and contactable with the first signal terminal, and a second signal terminal held by the second fixed housing and contactable with the fixed ground terminal. a second connector comprising a resilient ground terminal, the connector comprising:
(c) the first signal terminals are arranged in a row, and the fixed ground terminal is held by the first fixed housing on the outside in the arrangement direction of the first signal terminals; ,
(d) The second signal terminals are arranged in a plurality of rows, and the elastic ground terminal is held by the second fixed housing on the outside in the arrangement direction of the second signal terminals. 1. A connector that is elastically deformable in a fitting direction of said first connector and said second connector. 2. The connector according to claim 1, wherein the elastic ground terminal includes a substrate fixing portion that can be fixed to the substrate, an elastic deformation portion that can be elastically deformed, and a contact portion that can contact the fixed ground terminal. 3. The second connector according to claim 2, wherein the second connector further comprises a fixing member that can be fixed to the board, and the fixing member and the board fixing portion are arranged on opposite sides in the width direction of the second fixed housing. connector. 4. The connector according to claim 2, wherein the elastically deformable portion includes a substrate connecting portion that can contact a connection pad on the surface of the substrate. The elastic ground terminals are a pair, and the elastic ground terminals are arranged so as to be point-symmetrical with respect to the center point of the longitudinal direction and the width direction of the second connector when viewed in the fitting direction. A connector according to any one of claims 1 to 4, provided.

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