JP7395437B2 - connector assembly - Google Patents

Description

The present invention relates to a board-to-board connector, and more particularly to a connector assembly in which board-to-board connectors are mounted on a board and connected to each other.

12 to 14 show the configuration described in Patent Document 1 as a conventional example of a board-to-board connector, FIG. 12 shows the first connector 10 constituting the board-to-board connector, and FIG. A second connector 20 constituting a board-to-board connector is shown. Further, FIG. 14 shows a cross-sectional structure of the first connector 10 and the second connector 20 in a fitted state.

The first connector 10 and the second connector 20 each have insulating housings 11 and 21 extending in an elongated shape, and a large number of signal contact members 13 and 23 are arranged along the longitudinal direction of the insulating housings 11 and 21. They are arranged in a multipolar configuration at a predetermined pitch.

Each of the insulating housings 11 and 21 has base end portions 11a and 21a at both end portions in the longitudinal direction of the insulating housings 11 and 21 (the longitudinal direction of the connector). A central convex portion 11b is provided so as to span both base end portions 11a, and a central concave portion 21b is provided so as to span both base end portions 21a.

The conductive shells 12 and 22 constitute shield walls for the signal contact members 13 and 23, and are attached to surround the outer peripheries of the insulating housings 11 and 21. Note that in FIGS. 12 and 13, 14 and 24 indicate power contact members.

The conductive shells 12 are composed of two approximately L-shaped bodies, and the pair of conductive shells 12 constitute a frame structure. A plurality of ground connection parts 12c are formed at the lower end edges of the long side wall plate 12a and the short side wall plate 12b of the conductive shell 12, and are soldered to the ground pad provided on the first wiring board 15. .

A plurality of ground connection parts 12c provided on the longitudinal side wall plate 12a of the conductive shell 12 are arranged at regular intervals, and a signal contact member is provided in the interval area between a pair of adjacent ground connection parts 12c. A side inspection window 12d is formed with a space that allows the thirteen board connection legs 13a to be visually viewed in the connector width direction. The length of the side inspection window 12d in the longitudinal direction of the connector is formed to correspond to the length of the three board connection legs 13a in parallel, and the connection state of the board connection legs 13a can be checked through the side inspection window 12d. It is now possible to check the assembly status of connectors and connectors from the side.

Further, a plane cover 12e is connected to the upper edge portion of the longitudinal side wall plate 12a of the conductive shell 12, and a portion extending from the plane cover 12e and the longitudinal side wall plate 12a bent downward from the plane cover 12e. A plate spring-like contact piece 12f that elastically contacts a mating partner is cut and raised at the plate. A plurality of contact pieces 12f are formed at regular intervals in the longitudinal direction of the connector.

On the other hand, the conductive shell 22 provided as a shield wall on the second connector 20 side is composed of two approximately U-shaped bodies, and the pair of conductive shells 22 constitute a frame structure. A plurality of ground connection portions 22c are provided at the lower end edges of the longitudinal side wall plate 22a and the fixed locking piece (short side wall plate) 22b of the conductive shell 22, which are soldered to the ground pad provided on the second wiring board 25. The body is formed.

A plurality of ground connection parts 22c provided on the longitudinal side wall plate 22a of the conductive shell 22 are arranged at regular intervals, and a signal contact member is provided in the interval area between a pair of adjacent ground connection parts 22c. A side inspection window 22d is formed with a space that allows the board connection leg portions 23a of 23 to be visually viewed in the connector width direction. The length of the side inspection window 22d in the longitudinal direction of the connector is formed to correspond to the length of the three board connection legs 23a in parallel, and the connection state of the board connection legs 23a can be checked through the side inspection window 22d. and the connector assembly status can be checked from the side.

When the first connector 10 mounted on the first wiring board 15 and the second connector 20 mounted on the second wiring board 25 are fitted together, each signal contact of the second connector 20 The member 23 and the power contact member 24 are received and electrically connected to the signal contact member 13 and the power contact member 14 of the first connector 10, respectively.

The conductive shell 22 provided on the second connector 20 covers the entire outer circumference of the first connector 10 from the outside when the first connector 10 and the second connector 20 are fitted together. At this time, the inner wall surface of the conductive shell 22 of the second connector 20 comes into elastic contact with the contact piece 12f provided on the conductive shell 12 of the first connector 10, thereby making contact. Both conductive shells 12, 22 are grounded through the piece 12f.

Japanese Patent Application Publication No. 2017-33654

By the way, with the miniaturization of electronic equipment used in this type of board-to-board connector, the increase in packaging density, and the increase in the frequency of electrical signals, EMI countermeasures have become an even more important issue.

However, in the conventional board-to-board connector consisting of the first connector 10 and the second connector 20 described above, the first connector 10 and the second connector 20 each include conductive shells 12 and 22, and these conductive shells Although electromagnetic shielding is provided by the magnetic shells 12 and 22, the shielding effect cannot be said to be sufficient due to the following points.

First, the ground connection between the conductive shells 12 and 22 is performed by a plurality of contact pieces 12f formed on the conductive shell 12 coming into elastic contact with the conductive shell 22, but the contact piece 12f Since it is formed by cutting and raising the conductive shell 12, a gap exists around the contact piece 12f in the conductive shell 12, and there is a problem in that electromagnetic waves are radiated from the gap.

Second, when the first connector 10 and the second connector 20 are fitted together, the conductive shells 12 and 22 are arranged doubly inside and outside, but between these conductive shells 12 and 22, Since there is a gap except for the part where the contact piece 12f contacts, there is a problem that electromagnetic waves are radiated through this gap.

In view of the above circumstances, an object of the present invention is to provide a connector assembly in which board-to-board connectors are mounted on a board and connected to each other, and can have a higher shielding effect than the conventional connector assembly. It is in.

According to the invention of claim 1, in the connector assembly in which the first connector and the second connector are mounted on mutually opposing surfaces of a first board and a second board that face each other and are fitted into each other. , has a rectangular frame shape, and a first shell made of a metal plate constituting the outer shell of the first connector is bent so as to protrude into the rectangular frame at the upper end facing the second board on each side of the rectangle. After that, a second shell made of a metal plate that forms the outer shell of the second connector is provided with a curved part that is bent back so as to protrude outside the frame, and has a rectangular frame shape. The outer surface is provided with an elongated convex portion extending along the side, and the curved portion and the convex portion partially overlap when viewed from the mating direction of the first connector and the second connector, but do not completely overlap. , are positioned so as to complement each other to form a rectangular frame shape, and the second shell is housed within the first shell with the convex portion located closer to the first substrate than the curved portion, and the convex portion extends over the entire length. The curved portion is in contact with the first shell over its entire length, and the curved portion is in contact with the second shell over its entire length.

In the invention according to claim 2, in the invention according to claim 1, a notch is present at the upper end of the first shell, and the depth of the notch is equal to the convex portion at a position in the side direction of the rectangle where the notch is located. The depth is set so as not to impair the contact between the first shell and the first shell.

In the invention according to claim 3, in the invention according to claim 2, the portion sandwiched between the two notches at the upper end of the first shell forms a carrier cutting portion.

In the invention according to claim 4, in the invention according to any one of claims 1 to 3, a frame-shaped first ground pattern is formed on the first substrate, and the first shell and the first ground pattern are different from each other. A first soldering portion along the first ground pattern connects the entire circumference by soldering, a frame-shaped second ground pattern is formed on the second board, and the second shell and the second It is assumed that the ground pattern is soldered to the entire circumference by a second soldering portion along the second ground pattern.

In the invention of claim 5, in the invention of claim 4, there is a notch at the lower end of the first shell facing the first substrate, and the notch at the lower end is closed by the first soldering part. be taken as a thing.

In the invention of claim 6, in the invention of claim 4 or 5, there is a notch at the lower end of the second shell facing the second substrate, and the notch at the lower end is closed by the second soldering part. It is assumed that

According to this invention, the contact length of the first shell and the second shell, each of which has a square frame shape, in the direction along the frame of the first connector and the second connector, respectively, is significantly greater than that of the prior art. As a result, the shielding effect can be improved more than before, and a connector assembly with enhanced EMI countermeasures can be obtained.

A is a perspective view from above showing a first connector constituting one embodiment of the connector assembly according to the present invention, and B is a perspective view from below of the first connector shown in A. FIG. 1B is a perspective view of the first shell in FIG. 1A. FIG. 1A is a perspective view showing the insulator and the terminal held by the insulator in FIG. 1A. A is a perspective view showing a state before the carrier is cut and removed in a half constituting the first shell shown in FIG. 2, and B is a partially enlarged sectional view of A. A is a perspective view showing a state in which the first connector shown in FIG. 1A is mounted on a first board, and B is a front view thereof. A is a perspective view from above showing a second connector constituting one embodiment of the connector assembly according to the present invention, and B is a perspective view from below of the second connector shown in A. FIG. 6B is a perspective view of the second shell in FIG. 6A. FIG. 6A is a perspective view showing the insulator and the terminal held by the insulator in FIG. 6A. 6A is a perspective view showing a state in which the second connector shown in FIG. 6A is mounted on a second board, and B is a front view thereof. A is a perspective view showing a connected state of the first connector shown in FIG. 1A and the second connector shown in FIG. 6A, and B is a partially enlarged view of A. A is a front view showing the connected state of the first connector shown in FIG. 1A and the second connector shown in FIG. 6A, B is a sectional view taken along the line DD in A, and C is a sectional view taken along the line EE in A. . A is a perspective view showing a first connector in a conventional example of a board-to-board connector, and B is a front view thereof. A is a perspective view showing a second connector in a conventional example of a board-to-board connector, and B is a front view thereof. FIG. 13B is an enlarged cross-sectional view showing the fitted state of the first connector shown in FIG. 12A and the second connector shown in FIG. 13A together with the wiring board.

Embodiments of the present invention will be described by way of examples with reference to the drawings.

FIG. 1 shows a first connector 100 constituting one embodiment of a connector assembly according to the present invention, and the first connector 100 includes an insulator 30, terminals 41 and 42 held by the insulator 30, The first shell 50 has a rectangular frame shape and constitutes the outer shell of the first connector 100. FIG. 2 shows details of the first shell 50, and FIG. 3 shows the first connector 100 with the first shell 50 removed.

The insulator 30 is made of resin and has a generally rectangular parallelepiped shape as a whole. Terminals 41 are attached to both longitudinal ends of the insulator 30, and two terminals 42 are attached to the center of the insulator 30, two in each row, for a total of four terminals.

The terminal 41 has a pair of contact pieces 41a facing each other, and the terminal 42 also has a pair of contact pieces 42a facing each other. Connection portions 41b and 42b of these terminals 41 and 42 with the substrate are located on the bottom side of the insulator 30. In this example, two terminals 41 are used for high frequency signals (for high speed transmission), and four terminals 42 are used for low frequency signals (for low speed transmission).

The first shell 50 is formed by bending a metal plate, and a rectangular frame structure is formed by two bodies having substantially U-shaped outer walls. At the upper ends of the outer wall portions 51 located on the two opposing sides forming the long sides of the rectangle, and the outer wall portions 52 located on the two opposing sides forming the short sides of the rectangle, there is provided a wall so as to project slightly into the frame of the rectangle. After being bent, curved portions 51a and 52a are formed, each having a shape that is bent back so as to protrude outside the frame.

The curved portion 51a of the outer wall portion 51 is formed in a portion of the outer wall portion 51 excluding the center portion in the side direction, and the carrier cutting portion 51c is located at the center portion of the outer wall portion 51 in the side direction sandwiched between a pair of notches 51b. are doing. The upper end surface of the carrier cutting portion 51c forms a carrier cutting surface 51d.

Extension parts 53 are formed at two locations at the lower end of each outer wall part 51 by being bent and extended inside the frame. The extensions 53 of both outer wall portions 51 form a pair and extend toward each other, that is, the first shell 50 has two pairs of extensions 53 .

The pair of extension parts 53 are extended from the outer wall part 51 so as to approach each other, and then bent and raised, and further extended from the upper end of the raised part 53a to come closer to each other, and then downward from the extension end. It has a configuration in which a U-shaped portion 54 that is bent and opens upward is formed at the tip. The U-shaped portions 54 of the paired extension portions 53 are located on the same plane, and one leg portion 54a of the U-shape located on the tip side is close to each other. Note that a pair of protrusions 53b are formed on the raised portion 53a so as to protrude in the width direction.

Two small-sized notches 55 are formed at the lower end of each outer wall portion 51 in a portion sandwiched between the two extension portions 53. These notches 55 are provided corresponding to the positions of the connecting portions 42b of the terminals 42 held by the insulator 30 and exposed on the bottom side of the insulator 30. On the other hand, each outer wall portion 52 has an extremely small gap 56 where the two first shells 50 meet, and a chamfered notch 57 is provided in the outer wall portion 52 at the lower end of this gap 56. ing.

FIG. 4 shows the state before the carrier is cut and removed in the manufacturing process of the first shell 50 having the above-mentioned configuration, and in FIG. 59 indicates a carrier. The carrier 59 serves as a reference for a mold that performs processing such as bending, and by performing processing while being held by the carrier 59 in this manner, processing can be performed with high precision. In FIG. 4B, a broken line a indicates a cutting position where the carrier 59 is cut and removed. Since notches 51b are provided on both sides of the carrier cutting portion 51c as shown in FIG. 2, the cutting operation can be performed easily and satisfactorily.

The first shell 50 is attached to the insulator 30 holding the terminals 41 and 42. The first shell 50 is attached by pushing the two halves 50' of the first shell 50 over the insulator 30. At this time, the rising portions 53a of the four extensions 53 having the protrusions 53b are press-fitted into the four recesses 31 of the insulator 30, respectively. Further, the U-shaped portions 54 of the paired extension portions 53 are inserted into the slits 32 of the insulator 30, thereby completing the first connector 100 shown in FIG. 1.

FIG. 5 shows a state in which the first connector 100 shown in FIG. 1 is mounted on the first substrate 300. Although not visible in FIG. 5, the connecting portions 41b and 42b of the terminals 41 and 42 are soldered to the pads of the first substrate 300. Note that since the connecting portion 42b of the terminal 42 is visible from the outside of the outer wall portion 51 of the first shell 50 through the notch 55, the position and soldering state of the connecting portion 42b can be confirmed.

Furthermore, a first ground pattern 310 having a rectangular frame shape in this example is formed on the first substrate 300 to correspond to the frame shape of the first shell 50. The ground pattern 310 is connected to the ground pattern 310 by being soldered to each other along the entire circumference by a first soldering portion 320 formed of a solder fillet along the first ground pattern 310. In FIGS. 5A and 5B, the first soldering portion 320 is shown transparently and hatched.

Notches 55 and 57 are present at the lower end of the first shell 50 facing the first substrate 300, and extension parts 53 are provided on both sides of the lower end of the first shell 50 where the extension part 53 is formed. Although there is a notch 58 that facilitates bending, these notches 55, 57 and notch 58 are all closed by the soldering portion 320 as shown in FIGS. 5A and 5B.

Next, a description will be given of the second connector 200 that is connected to the first connector 100 described above to form a board-to-board connector.

FIG. 6 shows the second connector 200, which includes an insulator 60, terminals 71 and 72 held by the insulator 60, and a shield plate 73, forming a rectangular frame shape. and a second shell 80 that constitutes the outer shell of the connector 200. FIG. 7 shows details of the second shell 80, and FIG. 8 shows the second connector 200 with the second shell 80 removed.

The insulator 60 is made of resin and includes a bottom plate portion 61 and side walls 62 provided at four corners of the bottom plate portion 61, respectively. Terminals 71 are attached to both longitudinal ends of the bottom plate portion 61, and two terminals 72 are attached to the center of the bottom plate portion 61, two in each row, for a total of four terminals. Moreover, a shield plate 73 is attached between each of the two terminals 71 and the four terminals 72.

The terminal 71 has a columnar shape and has a connecting portion 71a with the substrate at the lower end. The terminal 72 has a plate shape, and has a connection part 72a with the board at the lower end. Two terminals 71 are for high frequency signals, and four terminals 72 are for low frequency signals.

The shield plate 73 consists of a pair of columnar parts 73a that protrude above the bottom plate part 61, and an extending part 73b that connects and supports the lower ends of the columnar parts 73a, and the extended part 73b serves as a connecting part with the board. Ru.

The second shell 80 having a rectangular frame shape is formed by bending a metal plate, and as shown in FIG. It is provided with outer wall portions 82 located on two opposing sides forming a shape, and a connecting portion 83 that connects the upper ends of the outer wall portions 81 and 82. The connecting portion 83 has a plate surface that protrudes into the frame formed by the outer walls 81 and 82 and slightly narrows the frame.

An elongated convex portion 81a extending along the side is formed at the center of each outer side surface of the pair of outer wall portions 81 in the side direction, and an elongated convex portion 81a extending along the side is formed at the center portion of each outer side surface of the pair of outer wall portions 82 in the side direction. Also, elongated convex portions 82a extending along the sides are formed. Note that extension portions 81b are formed at both ends of the pair of outer wall portions 81 in the side direction, and are bent and extended toward the outer wall portion 82.

Two notches 84 are formed at the lower end of each outer wall portion 81, and further notches 85 are formed on both sides of these two notches 84 in the side direction. The notch 84 is provided corresponding to the position of the connecting portion 72a of the terminal 72 held by the insulator 60 and exposed on the bottom side of the insulator 60, and the notch 85 is provided corresponding to the position of the connecting portion 72a of the terminal 72 held by the insulator 60 and exposed on the bottom side of the insulator 60. It is provided corresponding to the position of the extending portion 73b of the shield plate 73 exposed on the bottom surface side. A notch 86 is also formed at the lower end of each outer wall portion 82, and projections 82b are formed at both ends of each outer wall portion 82 in the side direction so as to protrude outward from each other. In addition, in FIG. 7, 83a indicates a carrier cutting portion, and the carrier cutting portions 83a are provided at four locations in the connecting portion 83.

The second shell 80 having the above configuration is attached to the insulator 60 holding the terminals 71 and 72 and the shield plate 73. The attachment of the second shell 80 is performed by placing the second shell 80 over the insulator 60 and pushing it in, so that both outer wall portions 82 provided with protrusions 82b straddle the two side walls 62 of the insulator 60, and the second shell 80 is placed over the insulator 60 and pushed in. The second connector 200 shown in FIG. 6 is completed by being press-fitted into the recesses 63 formed on the outside.

FIG. 9 shows a state in which the second connector 200 shown in FIG. 6 is mounted on the second board 400. Although not visible in FIG. 9, the connecting portions 71a and 72a of the terminals 71 and 72 are soldered to pads on the second board 400. The connecting portion 72a of the terminal 72 is visible from the outside of the outer wall portion 81 of the second shell 80 through the notch 84, so that the position and soldering state of the connecting portion 72a can be confirmed.

Furthermore, a second ground pattern 410 having a rectangular frame shape in this example is formed on the second substrate 400 to correspond to the frame shape of the second shell 80, and the second ground pattern 410 has a rectangular frame shape in this example. The ground pattern 410 is soldered and connected to the ground pattern 410 along the entire circumference by a second soldering portion 420 formed of a solder fillet along the second ground pattern 410. In FIGS. 9A and 9B, the second soldering portion 420 is drawn transparently and shown with hatching.

There are cutouts 84 to 86 at the lower end of the second shell 80 facing the second substrate 400, and there are cutouts 84 to 86 between each outer wall portion 82 and extension portions 81b located on both sides of the outer wall portion 82. Although there is a separation part 87, these notches 84 to 86 and separation part 87 are all closed by the second soldering part 420 as shown in FIGS. 9A and 9B. Note that both ends of the extending portion 73b of the shield plate 73 are located in the notch 85 and are soldered together with the second shell 80 to the second ground pattern 410 by the second soldering portion 420.

The first board 300 and the second board 400 are opposed to each other, and the first connector 100 and the second connector 200 mounted on the mutually opposing surfaces of the first board 300 and the second board 400 are fitted. Then, they are connected to form a connector assembly according to the present invention. 10A and 11A show a state in which the first connector 100 and the second connector 200 are fitted and connected, with illustrations of the first board 300 and the second board 400 omitted, and FIG. 11B , C shows its cross-sectional structure. Further, FIG. 10B is a partially enlarged view of FIG. 10A.

The second connector 200 is fitted and housed in the rectangular first shell 50 of the first connector 100. At this time, since curved parts 51a and 52a are formed at the upper ends of the outer walls 51 and 52 of the first shell 50 facing the second board 400, the second connector 200 is It is well guided into the first shell 50.

By fitting the second connector 200 into the first connector 100, the terminals 41 and 71 and the terminals 42 and 72 are fitted and connected, respectively. The convex portions 81a, 82a provided on the second shell 80 fit deep into the curved portions 51a, 52a of the first shell 50 (located closer to the first substrate 300 than the curved portions 51a, 52a). , whereby the second shell 80 is fitted inside the first shell 50. The convex portions 81a, 82a of the second shell 80 are in contact with the inner surfaces of the opposing outer wall portions 51, 52 of the first shell 50 over their entire lengths, and the curved portions 51a, 52a of the first shell 50 are respectively It contacts the outer surfaces of opposing outer wall portions 81 and 82 of the second shell 80 over its entire length. Note that when the both end portions in the extending direction of the convex portion 81a and the convex portion 82a go over the curved portions 51a, 52a and fit deep into the curved portions 51a, 52a, the operator or the like can feel a click sensation.

On the other hand, the leg portions 54a of the pair of U-shaped portions 54 provided in the first shell 50, which are close to each other, fit between the pair of columnar portions 73a of the shield plate 73, and form a pair of columnar portions. It is positioned so as to almost fill the gap between the terminals 73a, thereby forming a shield between the terminals 41, 71 for high frequency signals and the terminals 42, 72 for low frequency signals.

An embodiment of the connector assembly according to the present invention has been described above, and according to this embodiment, the following effects can be obtained.

(1) The first shell 50 of the first connector 100 and the second shell 80 of the second connector 200 do not have contact pieces that are formed by cutting and raising as in the past and have a gap around them. Therefore, electromagnetic waves are not radiated from the air gap, and the shielding effect can be improved compared to the conventional method.

(2) The first shell 50 and the second shell 80 form a rectangular frame shape when the first connector 100 and the second connector 200 are fitted and connected. Convex portions 81a and 82a formed extending along the sides of the outer wall portions 81 and 82 respectively contact the outer wall portions 51 and 52 of the first shell 50 over the entire length, and the curved portion of the first shell 50 51a and 52a have a structure in which they are in contact with the outer wall portions 81 and 82 of the second shell 80 over their entire lengths, respectively. The curved portions 51a, 52a and the convex portions 81a, 82a partially overlap, but not completely, when viewed from the fitting direction of the first connector 100 and the second connector 200, but they complement each other and form a rectangular shape. As a result, there is no gap between the first shell 50 and the second shell 80 due to the presence of the curved portions 51a, 52a and the convex portions 81a, 82a. state, and the shielding effect can be greatly increased. In FIGS. 11B and 11C, the arrow b indicated by a broken line indicates the penetration of electromagnetic waves into the gap between the first shell 50 and the second shell 80, and in FIG. 11B, due to the presence of the curved portion 51a. , and FIG. 11C shows that the presence of the convex portion 81a prevents the radiation of electromagnetic waves.

(3) Furthermore, notches 55 and 57 and notches 58 present at the lower end of the first shell 50 facing the first substrate 300 and notches present at the lower end of the second shell 80 facing the second substrate 400. Since 84 to 86 and the separation portion 87 are each filled with solder, radiation of electromagnetic waves from these locations can be prevented.

In this example, the carrier cutting part 51c is located on the upper end side of the first shell 50 of the first connector 100, and there are cutouts 51b on both sides of the carrier cutting part 51c to facilitate the cutting operation. There is no curved part 51a in this part, and the gap between the first shell 50 and the second shell 80 is not closed by the curved part 51a, but the gap is formed by the convex part 81a of the second shell 80. 11B. The depth of the notch 51b is set to a depth that does not impair the contact between the convex portion 81a and the first shell 50 in the portion where the notch 51b is located (position in the side direction).

Thus, in this example, in the first shell 50, the carrier cutting portion 51c is provided on the upper end side of the outer wall portion 51, but if the carrier cutting portion is provided on the lower end side of the outer wall portion 51, for example, the first substrate There is a problem that it interferes with soldering with the first ground pattern 310 of 300, and if it is provided on the extension of the outer wall portion 52 in the side direction, it causes a problem that it interferes with the butting of the two first shells 50. may occur. Therefore, it is preferable to provide the carrier cutting portion 51c on the upper end side of the outer wall portion 51 as in this example.

In the above-described embodiment, both the first shell 50 and the second shell 80 have a rectangular frame shape, but the frame shape is not limited to a rectangle. For example, the four corners of the rectangle may be rounded. It may be a substantially rectangular shape, such as a cylindrical shape, or an oval shape.

10 First connector 11 Insulating housing 11a Base end portion 11b Central convex portion 12 Conductive shell 12a Long side wall plate 12b Short side wall plate 12c Ground connection portion 12d Side inspection window 12e Planar cover 12f Contact piece 13 Signal contact member 13a Board Connection end portion 14 Power contact member 15 First wiring board 20 Second connector 21 Insulating housing 21a Base end portion 21b Center recess 22 Conductive shell 22a Longitudinal side wall plate 22b Fixed locking piece 22c Ground connection portion 22d Side inspection window 23 Signal contact member 23a Board connection end 24 Power contact member 25 Second wiring board 30 Insulator 31 Recess 32 Slit 41, 42 Terminal 41a, 42a Contact piece 41b, 42b Connection portion 50 First shell 50' Half body 51, 52 Outer wall portion 51a, 52a Curved portion 51b Notch 51c Carrier cutting portion 51d Carrier cutting surface 53 Extension portion 53a Standing portion 53b Protrusion 54 U-shaped portion 54a Leg portion 55 Notch 56 Gap 57 Notch 58 Notch 59 Carrier 60 Insulator 61 Bottom plate part 62 Side wall 63 Recessed part 71, 72 Terminal 71a, 72a Connection part 73 Shield plate 73a Column part 73b Extension part 80 Second shell 81, 82 Outer wall parts 81a, 82a Convex part 81b Extension part 82b Projection 83 Connecting part 83a Carrier Cutting section 84, 85, 86 Notch 87 Separation section 100 First connector 200 Second connector 300 First board 310 First ground pattern 320 First soldering section 400 Second board 410 Second ground Pattern 420 Second soldering part

Claims (6)

A connector assembly in which a first connector and a second connector are mounted on mutually opposing surfaces of a first board and a second board facing each other and are fitted to each other,
A first shell made of a metal plate, which has a rectangular frame shape and constitutes an outer shell of the first connector, protrudes into the rectangular frame at an upper end facing the second board on each side of the rectangle. a curved portion having a shape that is bent back so as to protrude outside the frame after being bent as shown in FIG.
A second shell made of a metal plate, which has a rectangular frame shape and constitutes the outer shell of the second connector, has an elongated convex portion extending along the side of the rectangle on the outer surface of the side of the rectangle,
The curved portion and the convex portion overlap partially but not completely when viewed from the fitting direction of the first connector and the second connector, and complement each other to form a rectangular frame shape. It is located as follows.
The second shell is housed in the first shell with the convex portion located closer to the first substrate than the curved portion,
A connector assembly, wherein the convex portion is in contact with the first shell over its entire length, and the curved portion is in contact with the second shell over its entire length. The connector assembly according to claim 1,
a notch is present at the upper end of the first shell;
A connector assembly, wherein the notch has a depth that does not impair contact between the convex portion and the first shell at a position in the side direction of the rectangle where the notch is located. The connector assembly according to claim 2,
A connector assembly characterized in that a portion of the upper end of the first shell sandwiched between the two notches forms a carrier cutting portion. The connector assembly according to any one of claims 1 to 3,
A frame-shaped first ground pattern is formed on the first substrate, and the first shell and the first ground pattern are connected to each other by a first soldering portion along the first ground pattern. It is soldered all the way around,
A frame-shaped second ground pattern is formed on the second substrate, and the second shell and the second ground pattern are connected to each other by a second soldering portion along the second ground pattern. A connector assembly characterized by solder connection all around the circumference. The connector assembly according to claim 4,
A connector assembly, characterized in that a notch exists at a lower end of the first shell facing the first board, and the notch at the lower end is closed by the first soldering part. The connector assembly according to claim 4 or 5,
A connector assembly, wherein a notch is present at a lower end of the second shell facing the second board, and the notch at the lower end is closed by the second soldering part.

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