Connector assembly

Abstract

A connector assembly that fits together, wherein a first shell (50) that forms a square frame and forms the outer contour of a first connector (100) has curved portions (51a, 52a) at the upper ends of each side of the square, and a second shell (80) that forms a square frame and forms the outer contour of a second connector (200) has elongated convex portions (81a, 82a) extending along the sides of the square on the outer side surfaces of the sides. When viewed from the mating direction of the two connectors, the curved portions (51a, 52a) and the convex portions (81a, 82a) partially overlap. The second shell (80) is housed in the first shell (50), and the convex portions (81a, 82a) are in contact with the first shell (50) throughout their entire length, and the curved portions (51a, 52a) are in contact with the second shell (80) throughout their entire length.

Description

Technical Field

[0001] The present invention relates to a board-to-board connector, and more particularly to a connector assembly in which the board-to-board connector is mounted on a board and connected to each other. Background Art

[0002] Figure 1A , 1B 2A, 2B, and 3 are diagrams showing a structure described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2017-33654) as a conventional example of a board-to-board connector. Figure 1A , 1B 1 shows a first connector 10 constituting a board-to-board connector, Figure 2A , 2B 20 constituting a board-to-board connector. Figure 3 The cross-sectional structure of the first connector 10 and the second connector 20 after being fitted together is shown.

[0003] The first connector 10 and the second connector 20 respectively include insulating housings 11 and 21 extending in an elongated shape, and a plurality of signal contact members 13 and 23 are arranged in a multi-pole shape at a predetermined pitch along the longitudinal direction of the insulating housings 11 and 21 .

[0004] Each of the insulating housings 11 and 21 has base ends 11a and 21a at both ends in the longitudinal direction (connector longitudinal direction) of the insulating housings 11 and 21. The central protrusion 11b is provided to bridge the two base ends 11a, and the central recess 21b is provided to bridge the two base ends 21a.

[0005] The conductive shells 12 and 22 constitute shielding walls for the signal contact members 13 and 23 and are installed so as to surround the outer peripheral portions of the insulating housings 11 and 21. Figure 1A , 1B In 2A and 2B, 14 and 24 represent power contact components.

[0006] The conductive shell 12 is composed of two monomers forming a substantially L-shaped body, and the frame structure is formed by the two monomers forming a substantially L-shaped body. A plurality of ground connection portions 12c are formed at the lower edge portions of the long side wall plate 12a and the short side wall plate 12b of the conductive shell 12 to be welded to the ground pads provided on the first wiring substrate 15.

[0007] The plurality of ground connection portions 12c provided on the long side wall plate 12a of the conductive shell 12 are arranged at a certain interval, and a side inspection window 12d is formed in the interval area between a pair of adjacent ground connection portions 12c, which is a space through which the substrate connection leg portion 13a of the signal contact member 13 can be visually viewed in the connector width direction. The length of the side inspection window 12d in the connector long side direction is formed to be equivalent to the length of three single bodies of the substrate connection leg portion 13a arranged in parallel, and the connection state of the substrate connection leg portion 13a and the assembly state of the connector can be confirmed from the side through the side inspection window 12d.

[0008] Furthermore, a flat cover 12e is continuously provided at the upper edge of the long side wall plate 12a of the conductive shell 12, and a leaf spring-shaped contact piece 12f for elastically contacting a mating object is cut and formed on the flat cover 12e and at a portion bent downward from the flat cover 12e and extending to the long side wall plate 12a. A plurality of the contact pieces 12f are formed at regular intervals in the long side direction of the connector.

[0009] On the other hand, the conductive shell 22 provided on the second connector 20 side as a shielding wall is composed of two monomers forming a substantially U-shaped shape, and a frame structure is formed by a pair of conductive shells 22. A plurality of ground connection portions 22c are formed at the lower edge portions of the long side wall plate 22a and the fixed locking piece (short side wall plate) 22b of the conductive shell 22 to be welded to the ground pad provided on the second wiring substrate 25.

[0010] A plurality of ground connection portions 22c provided on the long side wall plate 22a of the conductive shell 22 are arranged at a certain interval, and a side inspection window 22d is formed in the interval area between a pair of adjacent ground connection portions 22c, which is formed by a space in the connector width direction through which the substrate connection leg portion 23a of the signal contact component 23 can be visually viewed. The length of the side inspection window 22d in the connector long side direction is formed to be equivalent to the length of three single bodies of the substrate connection leg portion 23a arranged in parallel, and through the side inspection window 22d, the connection state of the substrate connection leg portion 23a and the connector assembly state can be confirmed from the side.

[0011] When the first connector 10 mounted on the first wiring substrate 15 and the second connector 20 mounted on the second wiring substrate 25 are engaged, the signal contact components 23 and the power contact components 24 of the second connector 20 are respectively received by the signal contact components 13 and the power contact components 14 of the first connector 10 and electrically connected thereto.

[0012] The conductive shell 22 provided on the second connector 20 is configured to cover the outer circumference of the first connector 10 from the outside over the entire circumference when the first connector 10 and the second connector 20 are mated. At this time, the inner wall surface of the conductive shell 22 of the second connector 20 elastically contacts the contact piece 12f provided on the conductive shell 12 of the first connector 10, thereby, the two conductive shells 12, 22 are grounded to each other through the contact piece 12f. Summary of the invention

[0013] Problems to be solved by the invention

[0014] However, as electronic devices used in such board-to-board connectors become smaller and more densely mounted, and as the frequency of electrical signals increases, EMI countermeasures have become an increasingly important issue.

[0015] However, in the conventional board-to-board connector composed of the first connector 10 and the second connector 20, the first connector 10 and the second connector 20 respectively include conductive shells 12 and 22. Although electromagnetic shielding is performed by these conductive shells 12 and 22, the shielding effect is not sufficient in the following aspects.

[0016] First, the conductive shells 12 and 22 are grounded to each other by elastically contacting the conductive shell 22 with a plurality of contact pieces 12f formed on the conductive shell 12. However, since the contact pieces 12f are formed by cutting the conductive shell 12, there are gaps around the contact pieces 12f on the conductive shell 12, and electromagnetic waves are radiated from the gaps.

[0017] Second, when the first connector 10 and the second connector 20 are engaged, the conductive shells 12 and 22 are doubly arranged inside and outside, but because there is a gap between these conductive shells 12 and 22 except for the portion where the contact piece 12f contacts, there is a problem that electromagnetic waves are radiated through the gap.

[0018] In view of such a situation, an object of the present invention is to provide a connector assembly in which board-to-board connectors are mounted on boards and connected to each other, and in which the shielding effect is improved compared with the conventional technology.

[0019] Technical solutions to solve problems

[0020] The square-shaped first shell of the first connector has a curved portion extending in the circumferential direction of the first shell, and the square-shaped second shell of the second connector has an elongated convex portion extending in the circumferential direction of the second shell. In a connector assembly in which the first connector and the second connector are combined with each other, the second shell is located on the inner side of the first shell, the curved portion of the first shell protrudes toward the inside of the connector assembly, and the convex portion of the second shell protrudes toward the outside of the connector assembly. When the connector assembly is observed in the direction in which the first connector and the second connector are combined, the curved portion of the first shell and the convex portion of the second shell overlap with each other. In the connector assembly, the curved portion of the first shell contacts the second shell, and the convex portion of the second shell contacts the first shell.

[0021] Effects of the Invention

[0022] According to the present invention, the contact length of the first shell and the second shell of the first connector and the second connector, each forming a square frame, along the direction of the frame is greatly increased compared with the prior art. Therefore, compared with the prior art, the shielding effect can be improved and a connector assembly with enhanced EMI countermeasures can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1A It is a perspective view showing a first connector of a conventional example of a board-to-board connector.

[0024] Figure 1B It is a front view showing a first connector of a conventional example of a board-to-board connector.

[0025] Figure 2A It is a perspective view showing a second connector of a conventional example of a board-to-board connector.

[0026] Figure 2B It is a front view of a second connector showing a conventional example of a board-to-board connector.

[0027] Figure 3 It is shown together with the wiring board Figure 1A The first connector and Figure 2A An enlarged cross-sectional view of the second connector in a mating state is shown.

[0028] Figure 4A This is a perspective view showing a first connector constituting an embodiment of a connector assembly according to the present invention, as seen from above.

[0029] Figure 4B Observed from below Figure 4A A perspective view of the first connector is shown.

[0030] Figure 5 yes Figure 4A A stereogram of the first shell in FIG.

[0031] Figure 6 Yes means Figure 4A A three-dimensional view of an insulator and a terminal held by the insulator.

[0032] Fig. 7A It means composition Figure 5 The perspective view of the first shell half body before the support is cut away and removed is shown.

[0033] Figure 7B yes Fig. 7A A partial enlarged cross-sectional view of .

[0034] Fig. 8A Yes means Figure 4A The perspective view of the first connector shown is a state where it is mounted on the first substrate.

[0035] Figure 8B Yes means Figure 4A A front view showing a state where the first connector is mounted on the first substrate.

[0036] Fig. 9A This is a perspective view showing a second connector constituting an embodiment of a connector assembly according to the present invention, as viewed from above.

[0037] Fig. 9B Observed from below Fig. 9A A perspective view of the second connector is shown.

[0038] Fig.10 yes Fig. 9A A perspective view of the second shell in FIG.

[0039] Fig.11 Yes means Fig. 9A A three-dimensional view of an insulator and a terminal held by the insulator.

[0040] Fig. 12A Yes means Fig. 9A The perspective view of the second connector shown is mounted on the second substrate.

[0041] Fig. 12B Yes means Fig. 9A A front view showing a state where the second connector is mounted on the second substrate.

[0042] Fig.13A Yes means Figure 4A The first connector and Fig. 9A A perspective view of a connected state of the second connector is shown.

[0043] Fig. 13B yes Fig.13A A partial enlarged view of .

[0044] Fig.14A Yes means Figure 4AThe first connector and Fig. 9A A front view of the second connector in a connected state is shown.

[0045] Fig. 14B yes Fig.14A D-D line section view.

[0046] Fig. 14C yes Fig.14A E-E line section view.

[0047] Description of Reference Numerals

[0048] 10First Connector

[0049] 11Insulation shell

[0050] 11a Base end

[0051] 11b central convex part

[0052] 12 Conductive shell

[0053] 12a Long side wall panel

[0054] 12b Short side wall board

[0055] 12c Ground connection

[0056] 12d side inspection window

[0057] 12e flat mask

[0058] 12f contact piece

[0059] 13Signal contact parts

[0060] 13a Baseboard connection pin

[0061] 14 Power contact parts

[0062] 15First wiring substrate

[0063] 20 Second connector

[0064] 21 Insulation shell

[0065] 21a Base end

[0066] 21b central fovea

[0067] 22 Conductive shell

[0068] 22a Long side wall panel

[0069] 22b fixed stopper

[0070] 22c Ground connection

[0071] 22d Side inspection window

[0072] 23 signal contact parts

[0073] 23a Baseboard connection pin

[0074] 24 power contact parts

[0075] 25 second wiring substrate

[0076] 30 Insulator

[0077] 31 recess

[0078] 32 slots

[0079] 41, 42 terminals

[0080] 41a, 42a contact sheet

[0081] 41b, 42b connection part

[0082] 50 First Shell

[0083] 50' half body

[0084] 51, 52 outer wall

[0085] 51a, 52a bent portion

[0086] 51b gap

[0087] 51c support cutting part

[0088] 51d support cut surface

[0089] 53 extension

[0090] 53a Rising part

[0091] 53b protrusion

[0092] 54 U-shaped part

[0093] 54a Foot

[0094] 55 Gap

[0095] 56 Gap

[0096] 57 Gap

[0097] 58 cutting depth

[0098] 59 support

[0099] 60 Insulator

[0100] 61 bottom plate

[0101] 62 side wall

[0102] 63 concavity

[0103] 71, 72 terminals

[0104] 71a, 72a connection part

[0105] 73 shielding plate

[0106] 73a Columnar part

[0107] 73b extension

[0108] 80 Second Shell

[0109] 81, 82 outer wall

[0110] 81a, 82a convex parts

[0111] 81b extension

[0112] 82b protrusion

[0113] 83 connection part

[0114] 83a Support cutting part

[0115] 84, 85, 86 gaps

[0116] 87 Separation Department

[0117] 100 First Connector

[0118] 200 Second Connector

[0119] 300 first substrate

[0120] 310 first ground pattern

[0121] 320 first welding part

[0122] 400 Second substrate

[0123] 410 second ground pattern

[0124] 420 Second welding section DETAILED DESCRIPTION

[0125] Embodiments of the present invention will be described by way of examples with reference to the accompanying drawings.

[0126] Figure 4A , 4B The first connector 100 constituting one embodiment of the connector assembly of the present invention is shown. The first connector 100 comprises an insulator 30, terminals 41 and 42 held by the insulator 30, and a first shell 50 forming a square frame shape and constituting the outer shell of the first connector 100. Figure 5 The first shell 50 is shown in detail. Figure 6The first case 50 is shown in a state where the first connector 100 is removed.

[0127] The insulator 30 is made of resin and has a substantially rectangular parallelepiped shape as a whole. Terminals 41 are attached to both ends of the insulator 30 in the longitudinal direction, and four terminals 42 are attached to the center of the insulator 30 in two rows, two terminals in each row.

[0128] 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. The connection parts 41b and 42b of these terminals 41 and 42 connected to the substrate are located on the bottom surface side of the insulator 30. In this example, the two terminals 41 are used for high-frequency signals (for high-speed transmission), and the four terminals 42 are used for low-frequency signals (for low-speed transmission).

[0129] The first shell 50 is formed by bending a metal plate, and has a square frame structure formed by two monomers having a substantially U-shaped outer wall. The outer wall portions 51 and 52 are formed at their upper ends at the respective opposite sides of the long side of the square and the respective opposite sides of the short side of the square, respectively, with bent portions 51a and 52a having a shape that is bent to slightly protrude into the square frame and then folded back to protrude out of the frame.

[0130] The bent portion 51a of the outer wall 51 is formed except for the center portion in the side direction of the outer wall 51. The support cut portion 51c is located in the center portion in the side direction of the outer wall 51, sandwiched by a pair of notches 51b. The upper end surface of the support cut portion 51c forms a support cut surface 51d.

[0131] The extensions 53 are bent and extended toward the inside of the frame at two locations at the lower end of each outer wall 51. The extensions 53 of the two outer wall portions 51 are paired and extended to approach each other. That is, two pairs of extensions 53 are formed on the first shell 50.

[0132] The paired extensions 53 are structured as follows: they are extended from the outer wall 51 in a manner close to each other, then bent and raised, and further extended from the upper end of the raised portion 53a in a manner close to each other, and bent downward from the extended end to form a U-shaped portion 54 that opens upward in a U-shaped shape at the front end. The U-shaped portions 54 of the paired extensions 53 are located in the same plane, and one leg portion 54a of the U-shaped portion located on the front end side is close to each other. It should be noted that a pair of protrusions 53b are formed on the raised portion 53a in the width direction.

[0133] Two slightly smaller notches 55 are formed at the lower end of each outer wall portion 51 in a portion sandwiched by the two extension portions 53. These notches 55 are provided corresponding to the positions of the connection portions 42b of the terminals 42 held by the insulator 30 and exposed on the bottom surface side of the insulator 30. On the other hand, each outer wall portion 52 has a very small gap 56 as a butt joint of the first shell 50 composed of two monomers, and a groove-shaped notch 57 is provided in the outer wall portion 52 at the lower end of the gap 56 portion.

[0134] Fig. 7A , 7B 1 shows a state before the support is cut and removed in the manufacturing process of the first shell 50 having the above-mentioned structure. Fig. 7A , 7B In the figure, 50' denotes a half body of the first shell 50 composed of two monomers, and 59 denotes a support. The support 59 forms a reference in a die for bending and other processing, and by processing while being held by the support 59, processing can be performed with high precision. Figure 7B In FIG. 5 , the dotted line a indicates the cutting position where the support 59 is cut off. Figure 5 As shown, the notches 51b are provided on both sides of the support cutting portion 51c, so that the cutting operation can be performed easily and well.

[0135] The first shell 50 is mounted on the insulator 30 that holds the terminals 41 and 42. The first shell 50 is mounted by covering the two halves 50' of the first shell 50 from above the insulator 30 and pushing them in. At this time, the four extensions 53, the rising portions 53a with protrusions 53b are pressed into the four recesses 31 of the insulator 30. In addition, the U-shaped portions 54 of the paired extensions 53 are inserted into the slits 32 of the insulator 30, thereby, Figure 4A , 4B The first connector 100 is shown completed.

[0136] Fig. 8A , 8B express Figure 4A , 4B The first connector 100 is shown as being mounted on the first substrate 300 . Fig. 8A , 8B Although the terminals 41 and 42 are hidden and cannot be seen, the connection portions 41b and 42b of the terminals 41 and 42 are soldered to the pads of the first substrate 300. It should be noted that the connection portion 42b of the terminal 42 can be visually seen from the outside of the outer wall portion 51 of the first shell 50 through the notch 55, so the position and soldering state of the connection portion 42b can be confirmed.

[0137] Moreover, in this example, a first ground pattern 310 having a square frame shape is formed on the first substrate 300 corresponding to the frame shape of the first shell 50, and the first shell 50 and the first ground pattern 310 are connected to each other by welding a first welding portion 320 formed by a solder foot along the first ground pattern 310 throughout the entire circumference. Fig. 8A , 8B In FIG. 1 , the first welding portion 320 is depicted transparently and indicated by adding hatching.

[0138] There are notches 55 and 57 at the lower end of the first shell 50 facing the first substrate 300. In addition, there are cutouts 58 on both sides of the portion of the lower end of the first shell 50 where the extension 53 is formed so as to facilitate bending of the extension 53. However, these notches 55, 57 and the cutouts 58 are not provided. Fig. 8A , 8B All are shown blocked by the first weld 320 .

[0139] Next, the second connector 200 connected to the first connector 100 to constitute a board-to-board connector will be described.

[0140] Fig. 9A , 9B The second connector 200 is shown. The second connector 200 includes an insulator 60 , terminals 71 , 72 and a shield plate 73 held by the insulator 60 , and a second shell 80 that is formed in a square frame shape and constitutes the outer shell of the second connector 200 . Fig.10 The second shell 80 is shown in detail. Fig.11 This is a diagram showing a state where the second shell 80 is removed from the second connector 200 .

[0141] The insulator 60 is made of resin and has a bottom plate 61 and side walls 62 provided at four corners of the bottom plate 61. Terminals 71 are installed at both ends of the bottom plate 61 in the long side direction, and two rows of four terminals 72 are installed in the center of the bottom plate 61. In addition, shielding plates 73 are installed between the two terminals 71 and the four terminals 72.

[0142] The terminal 71 is formed in a columnar shape and has a connection portion 71a connected to the substrate at the lower end. The terminal 72 is formed in a plate shape and has a connection portion 72a connected to the substrate at the lower end. Two terminals 71 are for high-frequency signals, and four terminals 72 are for low-frequency signals.

[0143] The shield plate 73 is composed of a pair of columnar portions 73 a protruding from the bottom plate portion 61 and an extending portion 73 b that connects and supports the lower ends of the columnar portions 73 a and extends. The extending portion 73 b is a connection portion connected to the substrate.

[0144] The second shell 80 formed into a square frame shape is formed by bending a metal plate. Fig.10 As shown, it is provided with outer wall portions 81 respectively located at two opposite sides forming the long sides of the square, outer wall portions 82 respectively located at two opposite sides forming the short sides of the square, and a connecting portion 83 connecting 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 wall portions 81 and 82 and slightly narrows the frame.

[0145] The outer side surfaces of the pair of outer wall portions 81 are formed with elongated convex portions 81a extending along the sides in the center of the sides, and the outer side surfaces of the pair of outer wall portions 82 are also formed with elongated convex portions 82a extending along the sides in the center of the sides. It should be noted that the two ends of the pair of outer wall portions 81 are formed with extended portions 81b bent and extended toward the outer wall portion 82.

[0146] Two notches 84 are formed at the lower end of each outer wall portion 81, and notches 85 are also formed on both sides of the two notches 84 in the side direction. The notch 84 is provided corresponding to the position of the connection portion 72a of the terminal 72 held in the insulator 60 and exposed on the bottom surface side of the insulator 60, and the notch 85 is provided corresponding to the position of the extension portion 73b of the shielding plate 73 held in the insulator 60 and exposed on the bottom surface side of the insulator 60. A notch 86 is also formed at the lower end of each outer wall portion 82, and protrusions 82b are formed at both ends in the side direction of each outer wall portion 82 so as to protrude outward from each other. It should be noted that Fig.10 In the figure, 83 a denotes a support cutting portion, and the support cutting portions 83 a are provided at four locations in the connecting portion 83 .

[0147] The second shell 80 having the above-mentioned structure is mounted on the insulator 60 holding the terminals 71, 72 and the shielding plate 73. The second shell 80 is mounted by covering the second shell 80 from above the insulator 60 and pushing it in. The two outer wall portions 82 having the protrusions 82b span the two side walls 62 of the insulator 60 and are pressed into the recesses 63 formed on the outer sides of the side walls 62, respectively, so that Fig. 9A , 9B The second connector 200 is shown completed.

[0148] Fig. 12A , 12B Yes means Fig. 9A , 9B The diagram shows a state where the second connector 200 is mounted on the second substrate 400 . Fig. 12A , 12BAlthough the terminals 71 and 72 are hidden and cannot be seen, the connection portions 71a and 72a of the terminals 71 and 72 are soldered to the pads of the second substrate 400. It should be noted that the connection portion 72a of the terminal 72 can be visually seen from the outside of the outer wall portion 81 of the second shell 80 through the notch 84, so the position and soldering state of the connection portion 72a can be confirmed.

[0149] Moreover, in this example, on the second substrate 400, a second ground pattern 410 is formed in a square frame shape corresponding to the frame shape of the second shell 80, and the second shell 80 and the second ground pattern 410 are connected to each other by welding a second welding portion 420 composed of solder legs along the second ground pattern 410 throughout the entire circumference. Fig. 12A , 12B In the figure, the second welding portion 420 is depicted transparently and indicated by adding hatching.

[0150] There are notches 84 to 86 at the lower end of the second shell 80 facing the second substrate 400. In addition, there are separation portions 87 between each outer wall portion 82 and the extension portions 81b located on both sides of the outer wall portion 82 to separate them. However, these notches 84 to 86 and the separation portions 87 are as follows. Fig. 12A , 12B As shown, they are blocked by the second welding part 420. It should be noted that both ends of the extension part 73b of the shielding plate 73 are located at the notch 85 and are welded to the second ground pattern 410 together with the second shell 80 through the second welding part 420.

[0151] The first substrate 300 and the second substrate 400 face each other, and the first connector 100 and the second connector 200 mounted on the facing surfaces of the first substrate 300 and the second substrate 400 are fitted and connected to form the connector assembly of the present invention. Fig.13A and 14A The first substrate 300 and the second substrate 400 are omitted from the illustration, and the first connector 100 and the second connector 200 are shown in a state where they are fitted and connected. Fig. 14B , 14C Indicates its cross-sectional structure. In addition, Fig. 13B Will Fig.13A Enlarge a part to show.

[0152] The second connector 200 is embedded and housed in the first housing 50 formed in a square frame shape of the first connector 100. At this time, the outer wall portions 51 and 52 of the first housing 50 are formed with curved portions 51a and 52a at the upper ends facing the second substrate 400, so that the second connector 200 is well introduced into the first housing 50 by these curved portions 51a and 52a.

[0153] The terminals 41 and 71, and the terminals 42 and 72 are respectively fitted and connected by fitting the second connector 200 to the first connector 100. The convex portions 81a and 82a provided on the second shell 80 are embedded in the inner side of the curved portions 51a and 52a of the first shell 50 (located closer to the first substrate 300 than the curved portions 51a and 52a), thereby fitting the second shell 80 to the inner side of the first shell 50. The convex portions 81a and 82a of the second shell 80 are respectively in contact with the inner side surfaces of the outer wall portions 51 and 52 of the first shell 50 over the entire length, and the curved portions 51a and 52a of the first shell 50 are respectively in contact with the outer side surfaces of the outer wall portions 81 and 82 of the second shell 80 over the entire length. It should be noted that when both ends of the convex portion 81a in the extending direction and the convex portion 82a respectively cross the curved portions 51a and 52a and fit into the inner side of the curved portions 51a and 52a, the operator or the like can feel a "click" feeling.

[0154] On the other hand, the mutually adjacent legs 54a of the pair of U-shaped portions 54 provided in the first shell 50 are embedded between a pair of columnar portions 73a of the shielding plate 73 and almost fill the gap between the pair of columnar portions 73a, thereby forming a shield between the terminals 41, 71 for high-frequency signals and the terminals 42, 72 for low-frequency signals.

[0155] An embodiment of the connector assembly of the present invention has been described above. According to this embodiment, the following effects can be obtained.

[0156] (1) In the first shell 50 of the first connector 100 and the second shell 80 of the second connector 200, there is no contact piece formed by cutting and raising and having a gap around it as in the prior art. Therefore, electromagnetic waves are not radiated from the gap, and the shielding effect can be improved compared with the prior art.

[0157] (2) The first shell 50 and the second shell 80, which form a square frame shape when the first connector 100 and the second connector 200 are mated and connected, have the following structure: the convex parts 81a and 82a formed along the respective sides of the outer wall parts 81 and 82 of the second shell 80 are in contact with the outer wall parts 51 and 52 of the first shell 50 over the entire length, and the bent parts 51a and 52a of the first shell 50 are in contact with the outer wall parts 81 and 82 of the second shell 80 over the entire length. When viewed from the mating direction of the first connector 100 and the second connector 200, the bent parts 51a and 52a and the convex parts 81a and 82a partially overlap, but do not completely overlap, and exist in a manner that complements each other to form a square frame shape. As a result, there is a state where there is no gap between the first shell 50 and the second shell 80 due to the existence of these bent parts 51a and 52a and the convex parts 81a and 82a, and the shielding effect can be greatly improved. Fig. 14B , 14CIn the figure, the dotted arrow b indicates that the electromagnetic wave invades the gap between the first shell 50 and the second shell 80. Fig. 14B The existence of the curved portion 51a prevents the radiation of electromagnetic waves. Fig. 14C The presence of the protrusion 81a prevents the radiation of electromagnetic waves.

[0158] (3) Furthermore, the notches 55, 57 or the cutout 58 existing at the lower end of the first shell 50 facing the first substrate 300 and the notches 84 to 86 and the separation portion 87 existing at the lower end of the second shell 80 facing the second substrate 400 are respectively filled with solder, thereby preventing the radiation of electromagnetic waves from these parts.

[0159] It should be noted that, in this example, the support cut-off portion 51c is located on the upper end side of the first shell 50 of the first connector 100, and there are notches 51b on both sides of the support cut-off portion 51c for facilitating the cutting operation. There is no bent portion 51a in this portion, and the gap between the first shell 50 and the second shell 80 is not blocked by the bent portion 51a, but the gap is blocked by the convex portion 81a of the second shell 80. Fig. 14B 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 at the portion (position in the side direction) where the notch 51b is located.

[0160] Thus, in this example, in the first shell 50, the standoff cut-off portion 51c is provided on the upper end side of the outer wall portion 51. However, for example, if the standoff cut-off portion is provided on the lower end side of the outer wall portion 51, there is a problem that the standoff cut-off portion is hindered from being welded to the first ground pattern 310 of the first substrate 300. In addition, if the standoff cut-off portion is provided on the side direction extension of the outer wall portion 52, there is a problem that the first shell 50 composed of two parts is hindered from being butted. Therefore, as in this example, the standoff cut-off portion 51c is preferably provided on the upper end side of the outer wall portion 51.

[0161] It should be noted that in the above-mentioned embodiment, the first shell 50 and the second shell 80 are both formed into a square frame shape, but the frame shape is not limited to a square, for example, it can be a substantially square with rounded corners, or it can be an elliptical shape.

Claims

1. A connector assembly, wherein a first connector and a second connector are mounted on mutually opposing surfaces of a first substrate and a second substrate that are opposed to each other and are engaged with each other, wherein the connector assembly is characterized in that: A first shell made of a metal plate, which forms a square frame and constitutes the outer contour of the first connector, has a bent portion at the upper end of each side of the square facing the second substrate, and the bent portion has a shape that bends protruding into the square frame and then bends back protruding out of the frame. The second housing made of a metal plate, which is formed into a square frame shape and constitutes the outer contour of the second connector, has an elongated protrusion extending along the side of the square on the outer side of the side. When viewed from the mating direction of the first connector and the second connector, the bent portion and the convex portion partially overlap but do not completely overlap and complement each other to form a square frame shape. The second shell is housed in the first shell in such a manner that the convex portion is located closer to the first substrate than the bent portion. 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.

2. The connector assembly according to claim 1, wherein: There is a notch at the upper end of the first shell, The depth of the notch is a depth that does not impair the contact between the convex portion and the first shell at a position in the side direction of the square where the notch is located.

3. The connector assembly according to claim 2, wherein: A portion of the upper end of the first shell sandwiched by the two notches forms a support cutoff portion.

4. The connector assembly according to claim 1, wherein: A first ground pattern having a frame shape is formed on the first substrate, and the first shell and the first ground pattern are connected by welding through a first welding portion along the first ground pattern over the entire circumference. A frame-shaped second ground pattern is formed on the second substrate, and the second shell and the second ground pattern are connected by welding over the entire circumference via a second welding portion along the second ground pattern.

5. The connector assembly according to claim 2, wherein: A first ground pattern having a frame shape is formed on the first substrate, and the first shell and the first ground pattern are connected by welding through a first welding portion along the first ground pattern over the entire circumference. A frame-shaped second ground pattern is formed on the second substrate, and the second shell and the second ground pattern are connected by welding over the entire circumference via a second welding portion along the second ground pattern.

6. The connector assembly according to claim 3, characterized in that: A first ground pattern having a frame shape is formed on the first substrate, and the first shell and the first ground pattern are connected by welding through a first welding portion along the first ground pattern over the entire circumference. A frame-shaped second ground pattern is formed on the second substrate, and the second shell and the second ground pattern are connected by welding over the entire circumference via a second welding portion along the second ground pattern.

7. The connector assembly according to claim 4, characterized in that: A notch is formed at a lower end of the first shell facing the first substrate, and the notch at the lower end is blocked by the first welding portion.

8. The connector assembly according to claim 5, characterized in that: A notch is formed at a lower end of the first shell facing the first substrate, and the notch at the lower end is blocked by the first welding portion.

9. The connector assembly according to claim 6, wherein: A notch is formed at a lower end of the first shell facing the first substrate, and the notch at the lower end is blocked by the first welding portion.

10. The connector assembly according to claim 4, wherein: A notch is formed at a lower end of the second shell facing the second substrate, and the notch at the lower end is blocked by the second welding portion.

11. The connector assembly according to claim 5, characterized in that: A notch is formed at a lower end of the second shell facing the second substrate, and the notch at the lower end is blocked by the second welding portion.

12. The connector assembly according to claim 6, wherein: A notch is formed at a lower end of the second shell facing the second substrate, and the notch at the lower end is blocked by the second welding portion.

13. The connector assembly according to claim 7, wherein: A notch is formed at a lower end of the second shell facing the second substrate, and the notch at the lower end is blocked by the second welding portion.

14. The connector assembly according to claim 8, wherein: A notch is formed at a lower end of the second shell facing the second substrate, and the notch at the lower end is blocked by the second welding portion.

15. The connector assembly according to claim 9, characterized in that: A notch is formed at a lower end of the second shell facing the second substrate, and the notch at the lower end is blocked by the second welding portion.

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