Connector assembly having conductive housing

Abstract

A first connector of a connector assembly includes: a plurality of first terminals arranged in a longitudinal direction intersecting a fitting direction of a second connector; a conductive first housing having a first peripheral wall surrounding the periphery of the plurality of first terminals on any surface intersecting with the fitting direction; and an insulating first housing that holds the plurality of first terminals and the first housing. The second connector includes: a plurality of second terminals arranged in a longitudinal direction intersecting a fitting direction of the first connector; a conductive second housing having a second peripheral wall surrounding the periphery of the plurality of second terminals on any surface intersecting the fitting direction; and an insulating second housing that holds the plurality of second terminals and the second housing. The first housing is integrated with the plurality of first terminals and the first housing by insert molding, the second housing is integrated with the plurality of second terminals and the second housing by insert molding, and at least one of the first peripheral wall and the second peripheral wall has a structure having no seam over the entire circumference.

Description

Technical Field

[0001] The present invention relates to a connector having a shielding function, and more particularly to a connector assembly having a conductive housing. Background Art

[0002] The connector described in Patent Document 1 is a connector of a substrate-mounted type constituting a connector assembly, and includes an insulating housing 30, a plurality of terminals 40 arranged and held in the housing 30, and a conductive shell 50. The housing 30 is located in the housing 50 in an island shape, and the housing 50 is formed of a single metal plate, and includes a peripheral wall 51 surrounding the housing 30, a bottom plate 52 extending from the lower end of the side mounted on the substrate to the inner side of the peripheral wall 51, and a pair of supporting pieces 53 extending from the bottom plate 52 and supporting the housing 30. The housing 50 is mounted on the housing 30 by pressing the housing 50 from above the housing 30 holding the terminals 40 and pressing the front end portions 53c of the pair of supporting pieces 53, which are bent after rising from the bottom plate 52 so as to follow the side surfaces 30e and 30f of the housing 30 that are opposite to each other.

[0003] Thus, in Patent Document 1, the housing is mounted on the shell by press-fitting, but as a result, a gap is generated between the housing and the shell, and the connector and the connector assembly become larger. In recent years, with the miniaturization of devices, there is an increasing demand for miniaturization of connectors and connector assemblies. For example, in the connector assembly used in the product to which the present invention is applied, in the plane formed by the length direction, which is the arrangement direction of the terminals, and the width direction orthogonal to the length direction, for example, the width direction is required to be set to about 2 mm or less.

[0004] Patent document: Japanese Patent Application Publication No. 2023-26809 Summary of the invention

[0005] An object of the present invention is to provide a more compact connector assembly having a shielding function.

[0006] In order to solve the above-mentioned problems, a connector assembly according to one embodiment of the present invention is a connector assembly consisting of a first connector of a substrate-mounted type and a second connector of a substrate-mounted type that can be mated with the first connector, characterized in that the first connector includes: a plurality of first terminals arranged in a longitudinal direction intersecting with a mating direction with the second connector; a conductive first housing having a first peripheral wall surrounding the plurality of first terminals on any one surface intersecting with the mating direction; and an insulating first shell that holds the plurality of first terminals and the first shell, and the second connector includes: a plurality of second terminals arranged in a longitudinal direction intersecting with the mating direction with the first connector; a conductive second housing having a second peripheral wall surrounding the plurality of second terminals on any one surface intersecting with the mating direction; and an insulating second shell that holds the plurality of second terminals and the second shell, the first shell being integrated with the plurality of first terminals and the first shell by insert molding, the second shell being integrated with the plurality of second terminals and the second shell by insert molding, and at least one of the first and second peripheral walls having a structure without a seam throughout the entire circumference.

[0007] According to the connector of this method, the shielding function can be more reliably obtained by having a shell with a peripheral wall, wherein the peripheral wall surrounds the periphery of multiple terminals and has a structure without seams throughout the entire periphery, and the multiple terminals and the shell are integrated with the shell by utilizing insert molding, thereby realizing miniaturization of the connector assembly.

[0008] According to the present invention, a more compact connector assembly having a shielding function is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a perspective view of a plug connector of a connector assembly according to a preferred embodiment of the present invention.

[0010] Figure 2 It is a perspective view of a receptacle connector of a connector assembly according to a preferred embodiment of the present invention.

[0011] Figure 3 This is an exploded perspective view of the plug connector.

[0012] Figure 4 yes Figure 1 A partial cross-sectional stereogram near line AA.

[0013] Figure 5 yes Figure 4 Partial side view of .

[0014] Figure 6 yes Figure 4 Partial bottom view of .

[0015] Figure 7 is with Figure 4 Front section view of the same section.

[0016] Figure 8 yes Figure 7 BB line cross-sectional view.

[0017] Fig. 9 yes Figure 1 A partial cross-sectional stereogram near line AA.

[0018] Fig.10 is with Fig. 9 Front section view of the same section.

[0019] Fig.11 It is a plan view schematically showing a manufacturing process of a plug connector using insert molding.

[0020] Fig.12 It is a plan view schematically showing a manufacturing process of a plug connector using insert molding.

[0021] Fig.13 This is an exploded perspective view of the socket connector.

[0022] Fig.14 yes Figure 2 A partial cross-sectional stereogram near the CC line.

[0023] Fig.15 yes Fig.14 Partial side view of .

[0024] Fig.16 yes Fig.14 Partial bottom view of .

[0025] Fig.17 yes Fig.14 sectional view of .

[0026] Fig.18 yes Fig.17 DD line cross-sectional view.

[0027] Fig.19 yes Figure 2 A partial cross-sectional stereogram near the CC line.

[0028] Fig. 20 yes Fig.19 sectional view of .

[0029] Fig.21 It is a plan view schematically showing a manufacturing process of a receptacle connector using insert molding.

[0030] Fig. 22It is a plan view schematically showing a manufacturing process of a receptacle connector using insert molding.

[0031] Fig.23 It is a combination Figure 7 and Fig.17 2 is a cross-sectional view showing a state before mating.

[0032] Fig.24 It is a combination Figure 7 and Fig.17 2 is a cross-sectional view showing a state before mating.

[0033] Fig.25 It is a combination Fig.10 and Fig. 20 A cross-sectional view showing the fitted state.

[0034] Fig.26 It is a combination Fig.10 and Fig. 20 A cross-sectional view showing the fitted state.

[0035] Description of Reference Numerals

[0036] 2...plug connector (first connector); 5...socket connector (second connector); 20...plug terminal (first terminal); 22...substrate mounting portion; 30...plug housing (first housing); 31...peripheral wall (first peripheral wall); 31a...inner peripheral surface; 34...width portion; 35...substrate mounting portion; 40...plug housing (first housing); 45...first recess; 46A, 46B...second recess; 47A, 47B...terminal arrangement portion (first protrusion); 49...end portion; 50...socket terminal (second terminal); 52...substrate mounting portion; 60...socket housing (second housing); 61...peripheral wall (second peripheral wall); 61a...inner peripheral surface; 64...width portion; 69...end portion; 70...socket housing (second housing); 75... Central island (first convex portion); 76A, 76B...terminal arrangement portion (second convex portion); 77A, 77B...first concave portion; 78A, 78B...second concave portion; 79...receiving portion; 320...central portion (central area); 330...corner top; 340...top; 341...outer wall portion; 341b...substrate mounting portion; 342...inner wall portion; 342a...substrate mounting portion; 350...top; 440...resin; 470...terminal retaining portion; 630...corner top; 640...top; 641...outer wall portion; 642...inner wall portion; 642a...base; 642b...stop portion; 642c...rising portion; 642d...covering portion; 740...resin; 760...terminal retaining portion; 760c...resin. DETAILED DESCRIPTION

[0037] Hereinafter, an exemplary embodiment for implementing the present invention will be described in detail with reference to the accompanying drawings. However, the dimensions, shapes, and relative positions of the components described in the following embodiments are arbitrary as long as they are not essential to the present invention, and can be changed according to the structure of the device to which the present invention is applied or various conditions. In addition, the scope of the present invention is not limited to the embodiments specifically described below.

[0038] Figure 1 and Figure 2 The following are perspective views respectively showing a plug connector and a receptacle connector of a connector assembly according to a preferred embodiment of the present invention. Figure 1 The plug connector 2 shown, and Figure 2 The socket connectors 5 shown are all board-mounted connectors, and are actually used in a state where they are mounted on different boards. The type of board is not particularly limited, and various types of boards such as rigid boards, flexible boards, and metal base boards can be used.

[0039] The plug connector (first connector) 2 is symmetrical in the length direction (β) and the width direction (γ), respectively. The length direction (β) is orthogonal to the mating direction (α) of the plug connector 2 and the socket connector 5, and the width direction (γ) is orthogonal to both the mating direction (α) and the length direction (β). The plug connector 2 includes a plurality of plug terminals (first terminals) 20 arranged along the length direction (β), a conductive plug shell (first shell) 30 forming the outer contour of the plug connector 2, and an insulating plug shell (first shell) 40 integrated with the plug terminals 20 and the plug shell 30 by insert molding.

[0040] The plug terminals 20 are mainly signal terminals, but a part of them may be power terminals. These plug terminals 20 are held by the terminal holding portion 470 of the plug housing 40 formed by a convex shape, thereby forming a pair of terminal arrangement portions (first convex portions) 47A, 47B. In each terminal arrangement portion 47A, 47B, the surface of the terminal holding portion 470 of the plug housing 40 and the surface of the plug terminal 20 form a roughly semicircular continuous surface. These pair of terminal arrangement portions 47A, 47B are separated from each other in the width direction (γ), and the bottomed first recessed portion 45 for the central island (first convex portion) 75 of the socket connector 5 to be embedded is provided between them along the length direction (β). In addition, between each of the terminal arrangement portions 47A, 47B and the peripheral wall (first peripheral wall) 31 of the plug housing 30 extending in the longitudinal direction (β), a pair of second recessed portions 46A, 46B formed as through holes into which a pair of terminal arrangement portions (second convex portions) 76A, 76B of the receptacle connector 5 fit are provided in the longitudinal direction (β). The second recessed portions 46A, 46B may be recessed portions with a bottom like the first recessed portion 45, but by forming through holes as in the present embodiment, the force during mating can be reduced.

[0041] The socket connector (second connector) 5 is similar to the plug connector 2 and is symmetrical in shape in the length direction (β) and the width direction (γ), and includes a plurality of socket terminals (second terminals) 50 arranged along the length direction (β), a conductive socket shell (second shell) 60 forming the outer contour of the socket connector 5, and an insulating socket housing (second shell) 70 integrated with the socket terminals 50 and the socket shell 60 by insert molding.

[0042] The socket terminals 50 are mainly signal terminals, but a part of them may be power terminals. These socket terminals 50 are held by the terminal holding portion 760 of the socket housing 70, thereby forming a pair of terminal arrangement portions (second convex portions) 76A, 76B. In each terminal arrangement portion 76A, 76B, the surface of the terminal holding portion 760 of the socket housing 70 and the surface of the socket terminal 50 form a substantially semicircular continuous surface. These pair of terminal arrangement portions 76A, 76B are separated from each other in the width direction (γ), and a central island 75 (first convex portion) located near the center of the socket connector 5 in the length direction (β) is provided between them, and a pair of bottomed first concave portions 77A, 77B into which the pair of terminal arrangement portions 47A, 47B of the plug connector 2 are embedded are provided along the length direction (β) between the central island 75 separated in the width direction (γ) and each of the pair of terminal arrangement portions 76A, 76B. Furthermore, between each of the pair of terminal arrangement portions 76A, 76B and the peripheral wall (second peripheral wall) 61 of the socket housing 60 extending in the longitudinal direction (β), a pair of second recessed portions 78A, 78B formed as through holes into which a portion (320) of a pair of opposing peripheral walls of the plug connector 2 is fitted are provided in the longitudinal direction (β). The second recessed portions 78A, 78B may be recessed portions with a bottom like the first recessed portions 77A, 77B, but by providing them as through holes as in the present embodiment, the force during mating can be reduced.

[0043] When the plug connector 2 is mated with the receptacle connector 5, the housing of the plug connector 2 is fitted inside the receptacle housing 60 of the receptacle connector 5. In other words, the receptacle housing 60 of the receptacle connector 5 is fitted outside the plug housing 30 of the plug connector 2. As a result, the plug housing 30 and the receptacle housing 60 are electrically connected, and the shielding function of each housing is enhanced.

[0044] In addition, a portion (350, 330, 340, 431, etc.) of the plug connector 2 at the end portion 49 in the length direction (β) of the plug connector 2 is embedded in a bottomed concave receiving portion 79 at a corresponding position of the socket connector 5, the central island (first protrusion) 75 of the socket connector 5 is embedded in the first recess 45 of the plug connector 2, the pair of terminal arrangement portions 47A, 47B (first protrusion) of the plug connector 2 are respectively embedded in the pair of first recesses 77A, 77B of the socket connector 5, the pair of terminal arrangement portions 76A, 76B (second protrusions) of the socket connector 5 are respectively embedded in the pair of second recesses 46A, 46B of the plug connector 2, and a portion (320) of a pair of opposing peripheral walls of the plug connector 2 are respectively embedded in a pair of second recesses 78A, 78B of the socket connector 5.

[0045] and Figure 1 and Figure 2 Also refer to Figures 3 to 12, the plug connector 2 will be described in more detail. Figure 3 is an exploded perspective view of the plug connector 2, Figure 4 yes Figure 1 The partial cross-sectional stereoscopic view near the AA line of FIG. 1 is a cross-sectional view of the terminal inter-terminal resin (470b) of the housing arranged between the terminals in the longitudinal direction (β), more precisely, Figure 5 yes Figure 4 A partial side view of Figure 6 yes Figure 4 A partial bottom view of Figure 7 is with Figure 4 The front section view under the same section, Figure 8 yes Figure 7 BB line cross-sectional view. And, respectively Fig. 9 It is shown in Figure 4 Same Figure 1 The partial cross-sectional stereogram near the AA line of FIG. 1 is a cross-sectional view at the terminal position, more precisely, but the terminal resin (470a) embedded in the terminal is omitted because the terminal is not cut off. Fig.10 It is shown in Fig. 9 In addition, as already described, the plug terminal 20, the plug housing 30, and the plug shell 40 are integrated by insert molding, and therefore cannot be disassembled in practice. Figure 3 The exploded perspective view is for convenience of explanation.

[0046] like Figure 3 As clearly shown, the plug terminal 20 mainly includes a base portion 21 , a contact portion 23 , an inverted U-shaped portion 24 , and a substrate mounting portion 22 .

[0047] The base 21 extends in the mating direction (α), and together with the contact portion 23 and the inverted U-shaped portion 24, constitutes a part of the terminal arrangement portions 47A, 47B (first convex portion), and constitutes a part of the first recess 45 of the plug connector 2 into which the center island (first convex portion) 75 of the receptacle connector 5 is fitted. When mated with the receptacle connector 5, the base 21 can contact a part of the receptacle terminal 50 of the receptacle connector 5 (the elastic contact 54 described later).

[0048] The contact portion 23 extends in the mating direction (α) in parallel with the base portion 21, and constitutes a part of the second recessed portions 46A, 46B of the plug connector 2 into which the terminal arrangement portions 76A, 76B (second convex portions) of the receptacle connector 5 are fitted. A recessed engaging portion 23a is provided near the front end of the contact portion 23, into which a part of the receptacle terminal 50 of the receptacle connector 5 (an engaging contact 57a described later) is engaged when the receptacle connector 5 is mated.

[0049] The inverted U-shaped portion 24 is an inverted U-shaped bent portion that connects the base portion 21 and the contact portion 23 on the mating side ( α1 ) with the receptacle connector 5 .

[0050] The board mounting portion 22 is a portion mounted on the board, and extends from one end of the base 21 on the side ( α2 ) opposite to the mating side ( α1 ) of the receptacle connector 5 toward the outside of the plug connector 2 in the width direction (γ).

[0051] When integrated with the plug housing 40, the side surfaces of the plug terminals 20 are filled with the inter-terminal resin 470b disposed between the terminals, and the insides thereof are filled with the inner terminal resin 470a (see Figure 3 , 4 , 7, 10, etc.). Therefore, the plug terminal 20 has a stronger strength than a normal terminal.

[0052] The plug housing 30 is formed from a metal plate by punching, bending, drawing, etc. The plug housing 30 has a frame-shaped peripheral wall 31 surrounding the plug terminal 20 on any "β-γ plane" intersecting the mating direction (α). The peripheral wall 31 has a structure without seams throughout the entire circumference (seamless structure), so the shielding function is enhanced compared to a structure with seams.

[0053] The peripheral wall 31 includes a pair of length portions 32 extending in the length direction (β), a pair of width portions 34 extending in the width direction (γ) at both ends in the length direction (β), and four curved corner portions 33 curved in the circumferential direction to connect the length portions 32 and the width portions 34. In a region along at least a portion of the length direction (β) where the plug terminals 20 are arranged, the thickness of the length portion 32 in the width direction (β) is set smaller than the thickness of the length portion (62) of the socket housing 60 of the socket connector 5 in the width direction (β) corresponding thereto. Nevertheless, the plug housing 40 is provided in a close contact state on the inner peripheral surface 31a of the length portion 32, so that the strength in the length portion 32 can be sufficiently ensured. An annular substrate mounting portion 35 is provided at the end of the peripheral wall 31 on the side (α2) opposite to the mating side (α1) of the socket connector 5, and the substrate mounting portion 35 extends in a state of spreading toward the outside of the plug connector 2 on the "β-γ plane", in other words, on the substrate mounting surface. The substrate mounting portion 35 is provided over the entire circumference of the β-γ plane, and is in a state of being retracted toward the mating side (α1) with the receptacle connector 5 compared to the substrate mounting portion 22 of the plug terminal 20. In other words, the substrate mounting portion 22 of the plug terminal 20 is in a state of being protruded toward the side (α2) opposite to the mating side (α1) with the receptacle connector 5 compared to the substrate mounting portion 35 of the plug housing 30 (see Figure 5 , 7, 8, and 10, etc.). As a result, the substrate mounting portion 22 of the plug terminal 20 is arranged on a side closer to the substrate than the substrate mounting portion 35 of the peripheral wall 31. For example, even if the substrate is deformed, the plug terminal 20 for signal transmission can be more reliably mounted on the substrate in preference to the plug housing 30 for shielding.

[0054] A portion of the length portion 32, namely, a central portion 320 located near the center in the length direction (β), is formed mainly by bending. A locking protrusion 320a having a roundness by curling inward is provided along the length direction (α) at ​​the edge portion of the mating side (α1) of the central portion 320 with the receptacle connector 5. The locking protrusion 320a is provided in a state of slightly protruding outward in the width direction (γ), and is locked to a predetermined portion (later-described locking portion 620a) of the receptacle housing 60 when the plug housing 30 of the plug connector 2 is fitted into the receptacle housing 60 of the receptacle connector 5.

[0055] Unlike the central portion 320, the other part of the length portion 32, that is, each end portion 321 located near the end in the length direction (β) is mainly formed by drawing. In the length portion 32, both bending and drawing are used, so in order to achieve different types of processing, a cutout 323 is provided between the end portion 321 and the central portion 320.

[0056] The end portion 321 includes a main body 321a, a curved portion 321b, and a top portion 350. The main body 321a is formed as a flat surface on the "α-β plane". The curved portion 321b is provided in a state slightly curved toward the mating side (α1) with the receptacle connector 5 compared to the main body 321a. The top portion 350 is a flat surface along the "β-γ plane" formed in a strip shape, such as Figure 5 As clearly shown, the mating side ( α1 ) with the receptacle connector 5 is located at the extreme end of the plug housing 30 .

[0057] The width portion 34 includes an outer wall portion 341 constituting the outermost wall of the peripheral wall 31 in the length direction (β), an inner wall portion 342 located on the inner side of the connector 2 than the outer wall portion 341 in the length direction (β), and a top portion 340 located between the outer wall portion 341 and the inner wall portion 342.

[0058] The outer wall 341 includes a main body 341a and a bent portion 341b. The main body 341a forms a substantially flat surface along the "α-γ plane". In addition, the main body 341a has a rectangular locking recess 341c in the center, and the locking recess 341c is used to lock a predetermined portion (locking protrusion 650 of the inner wall member 642) of the socket housing 60 of the socket connector 5. The bent portion 341b is provided in a state slightly bent toward the mating side (α1) with the socket connector 5 compared to the main body 341a.

[0059] The inner wall portion 342 includes a main body portion 342a and a bent portion 342b. The main body portion 342a forms a substantially flat surface on the "α-β plane". In addition, in the main body portion 341a, an inverted U-shaped cutout is provided at the end portion on the side opposite to the mating side (α1) of the socket connector 5. The end portion formed by the inverted U-shaped cutout is used as a substrate mounting portion 342c together with the substrate mounting portion 35 provided on the outer wall 341. The bent portion 342b is provided in a state slightly bent toward the mating side (α1) with the socket connector 5 compared to the main body portion 342a.

[0060] The top portion 340 is an elongated flat surface along the "β-γ plane" and is positioned at the end of the plug housing 30 (see FIG. 1 ) on the mating side (α1) with the receptacle connector 5 together with the top portion 350 of the length portion 32. Figure 4 , Fig.15 wait).

[0061] The bent corner portion 33 includes a main body portion 331a formed in a straight line in the mating direction (α), and a bent portion 331b provided in a state slightly bent toward the mating side (α1) with the receptacle connector 5 compared to the main body portion 331a, and including a corner top 330 formed in a substantially triangular shape as a flat surface along the "β-γ plane" at the top. The corner top 330 is positioned at the end of the plug housing 30 on the mating side (α1) with the receptacle connector 5 together with the top 350 of the length portion 32 and the top 340 of the width portion 34.

[0062] The curved corner portion 33 is in a state of being continuous with the length portion 32 and the width portion 34 in the circumferential direction. More specifically, the main body 331a of the curved corner portion 33 is continuous with the main body 321a of the length portion 32 and the main body 341a of the width portion 34, the curved portion 331b of the curved corner portion 33 is continuous with the curved portion 321b of the length portion 32 and the curved portion 341b of the width portion 34, and the corner top 330 of the curved corner portion 33 is continuous with the top 350 of the length portion 32 and the top 340 of the width portion 34.

[0063] like Figure 5As clearly shown, the corner top 330 is located at the end of the plug housing 30 on the mating side (α1) with the receptacle connector 5 together with the top 350 of the length portion 32 and the top 340 of the width portion 34. Further, these portions are in a state of protruding toward the mating side (α1) with the receptacle connector 5 compared with the central portion 320 of the length portion 32 and the terminal arrangement portions 47A, 47B, in other words, are arranged at a position closer to the receptacle connector 5. As a result, when the plug connector 2 and the receptacle connector 5 are mated, these portions first come into contact with the receptacle housing 60 of the receptacle connector 5, and therefore, there is a high possibility that they come into contact with the receptacle housing 60 of the receptacle connector 5 before the central portion 320 of the length portion 32 and the terminal arrangement portions 47A, 47B. The corner top 330, the top 350, and the top 340 of the width portion 34 are the strongest portions in the plug connector 2, and therefore, it is possible to effectively prevent the terminal arrangement portions 47A, 47B, etc., which have lower strength, from being damaged by making these portions come into contact with the receptacle housing 60.

[0064] Fig.11 , Fig.12 The manufacturing process of the plug connector 2 using insert molding is schematically shown.

[0065] like Fig.11 As shown, the plug terminal 20 is supported by the belt member 3a extending from the bracket 3, and the plug housing 30 is supported by the belt member (31b) extending from the bracket, and they are transported to a specified position where a mold (not shown) is provided.

[0066] After the transferred plug terminal 20 and plug housing 30 are covered with a mold, a resin in a fluid state is poured into the mold, and the resin forming the plug housing 40 is solidified. Fig.12 The state after the plug housing 40 is fixed to the plug terminal 20 and the plug shell 30 and the mold is removed is shown.

[0067] Thereafter, the band members 3a and 3c of the bracket 3 are cut at the predetermined positions 3b and 3d, respectively, and the bracket is cut at the predetermined cutting position to complete. After cutting, a portion 31b of the band member (3c) at the cutting position (3d) remains as a part of the plug housing 30 in a state exposed to the outside of the plug connector 2, but this portion 31b can be effectively used as a part of the substrate mounting portion of the plug connector 2.

[0068] According to the above manufacturing process, after the plug connector 2 is completed, the plug housing 40 is set in a state of being closely attached to the inner circumferential surface 31a of the plug shell 30 and the plug terminal 20. Among these closely attached portions, it naturally has a shape corresponding to the inner circumferential surface 31a of the plug shell 30, and also has a shape determined by the relationship with the plug terminal 20.

[0069] For example, the plug housing 40 includes a terminal holding portion 470 that forms terminal arrangement portions 47A and 47B together with the plug terminals 20 at the center of the plug connector 2. The terminal holding portion 470 also includes an inner terminal resin 470a buried inside the terminal and an inter-terminal resin 470b disposed between the terminals.

[0070] In addition, the plug housing 40 has a peripheral wall 41 corresponding to the peripheral wall 31 of the plug shell 30, and the peripheral wall 41 includes, like the peripheral wall 31 of the plug shell 30, a pair of length portions 42 extending in the length direction (β), a pair of width portions 44 extending in the width direction (γ) at both ends in the length direction (β), and four bent corner portions 43 bent in the circumferential direction to connect the length portion 42 and the width portion 44 to each other.

[0071] The inner surface 42 a of the length portion 42 , together with the length portion 32 of the plug housing 30 , constitutes a part of the second recessed portions 46A, 46B of the plug connector 2 into which the terminal arrangement portions 76A, 76B of the receptacle connector 5 are fitted.

[0072] The width portion 44 includes a resin 440 that fills a cross-sectional space of the plug housing 30 formed by the outer wall portion 341, the inner wall portion 342, and the top portion 340 that constitute the width portion 34 of the plug housing 30. By insert molding, the cross-sectional space is substantially entirely filled with the resin 440, so that the strength of the width portion 34 of the plug housing 30, to which a large force is likely to be applied when the plug connector 2 and the receptacle connector 5 are mated, can be increased, thereby effectively preventing the plug connector 2 from being damaged.

[0073] The bent corner portion 43 includes a resin 430 that fills a cross-sectional space formed by the main body portion 331a, the bent portion 331b, and the corner top portion 330 constituting the bent corner portion 33 of the plug housing 30. In addition, the corner top portion resin 431 is connected to the terminal arrangement portions 47A and 47B and is surrounded by the corner top portion 330, the top portion 350, and the top portion 340 of the plug housing 30. The corner top portion resin 431 is formed in a substantially triangular shape similar to the corner top portion 330 and forms a flat surface along the "β-γ plane". The corner top portion resin 431 is located at the end of the plug housing 30 on the mating side (α1) with the receptacle connector 5 similar to the corner top portion 330 of the plug housing 30, and therefore, similar to the corner top portion 330 of the plug housing 30, it is effective to prevent damage to the terminal arrangement portions 47A and 47B alone, and also reinforces the corner top portion 330 of the plug housing 30.

[0074] and Figure 1 and Figure 2 Together, also refer to Figures 13 to 22 , the socket connector 5 is described in more detail. Figures 13 to 22 Respectively with the already explained Figures 3 to 12 Corresponding. Figures 3 to 12 same, Fig.13 is an exploded perspective view of the socket connector 5, Fig.14 yes Figure 2 The partial cross-sectional stereoscopic view near the CC line of , more precisely, is a cross-sectional view of the terminal inter-terminal resin (760b) of the housing disposed between the terminals, Fig.15 yes Fig.14 A partial side view of Fig.16 yes Fig.14 A partial bottom view of Fig.17 yes Fig.14 A cross-sectional view of Fig.18 yes Fig.17 DD line section view. And, Fig.19 It is shown in Fig.14 Same Figure 2 The partial cross-sectional stereoscopic view near the CC line of the terminal is more precisely a cross-sectional view cut along the side of the terminal, and the terminal inner resin (760a) embedded in the terminal is omitted. Fig. 20 In addition, as already explained, the socket terminal 50, the socket housing 60, and the socket shell 70 are integrated by insert molding, and therefore cannot be actually disassembled. Fig.13 The exploded perspective view is for convenience of explanation.

[0075] like Fig.13As clearly shown, the socket terminal 50 mainly includes a base portion 51 , an elastic contact portion 53 , a fixed contact portion 57 , a fixed leg portion 56 , an inverted U-shaped portion 55 , and a substrate mounting portion 52 .

[0076] The base 51 is a portion constituting the bottom of the socket terminal 50, and is formed to be wider than other portions in the width direction (γ). In addition, the base 51, together with the elastic contact portion 53 and the fixed contact portion 57, constitutes a portion of the first recessed portions 77A, 77B of the socket connector 5 into which the terminal arrangement portions 47A, 47B of the plug connector 2 are inserted.

[0077] The elastic contact portion 53 is a portion that stands up elastically displaceably from one end of the base 51 toward the central island (first convex portion) 75 and toward the mating side (α1) with the plug connector 2, and has an elastic contact point 54 near the front end. When mated with the plug connector 2, the elastic contact point 54 elastically contacts the base 21 of the plug terminal 20 of the plug connector 2. In order to accommodate the elastic contact portion 53, a recessed portion 750 is provided in the central island 75 corresponding to each elastic contact portion 53.

[0078] The fixed contact portion 57 is a portion that rises from the other end of the base portion 51 toward the mating side (α1) with the plug connector 2, and together with the fixed leg portion 56 and the inverted U-shaped portion 55, constitutes a portion of the terminal arrangement portion 76A, 76B (second convex portion). The fixed contact portion 57 has an engagement contact 57a near the connection portion with the inverted U-shaped portion 55, and when mated with the plug connector 2, the engagement contact 57a contacts the contact portion 23 of the plug terminal 20 of the plug connector 2. At this time, the engagement contact 57a engages with the engagement portion 23a provided near the front end of the contact portion 23.

[0079] The fixing leg 56 extends in the mating direction (α) and is provided in a state of being fixed to the socket housing 70. The fixing leg 56 constitutes a part of the second recessed portion 78A, 78B into which a part (320) of a pair of opposing peripheral walls of the plug connector 2 is inserted. One surface of the fixing leg 56 constituting the second recessed portion 78A, 78B can be opposed to the plug housing 30 of the plug connector 2 inserted in the second recessed portion 78A, 78B, and is therefore covered with the resin 760c to reliably prevent contact with the plug housing 30.

[0080] The inverted U-shaped portion 55 is an inverted U-shaped bent portion that connects the fixed contact portion 57 and the fixed leg portion 56 on the mating side ( α1 ) with the plug connector 2 .

[0081] The board mounting portion 52 is provided at the end of the fixing leg portion 56 on the side (α2) opposite to the mating side (α1) of the receptacle connector 5. The receptacle terminal 50 is fixed to the board by the board mounting portion 52.

[0082] The socket housing 60 is formed from a metal plate by punching, bending, drawing, etc. The socket housing 60 has a frame-shaped peripheral wall 61 surrounding the socket terminal 50 on any "β-γ plane" intersecting the mating direction (α). The peripheral wall 61 has a structure without seams throughout the entire circumference, so the shielding function is enhanced compared to a structure with seams.

[0083] The peripheral wall 61 includes a pair of length portions 62 extending in the length direction (β), a pair of width portions 64 extending in the width direction (γ) at both ends in the length direction (β), and four curved corner portions 63 curved in the circumferential direction to connect the length portions 62 and the width portions 64. In a region along at least a portion of the length direction (β) where the socket terminals 50 are arranged, the thickness of the length portion 62 in the width direction (β) is set to be greater than the thickness of the length portion 32 of the plug housing 30 of the plug connector 2 in the width direction (β) corresponding thereto. Thus, the strength of the socket housing 60 when it is fitted onto the plug housing 30 is ensured. Using the fracture surface of the socket housing 60, a substrate mounting portion 620b is provided at the end of the peripheral wall 61 on the side (α2) opposite to the mating side (α1) of the plug connector 2, in other words, at the end surface of the socket housing 60 extending linearly along the board surface in the mating direction (α). Since the substrate mounting portion 620b is formed by a fracture surface, it will not expand on the "β-γ plane" like the substrate mounting portion 35 of the plug housing 30. As a result, the connector assembly can be miniaturized, especially in the width direction (β). However, it is not necessarily necessary to be formed by a fracture surface. If the substrate mounting portion 35 of the plug housing 30 is substantially converged to the expansion range in the width direction (β), the substrate mounting portion 620b may be slightly expanded on the "β-γ plane" similar to the substrate mounting portion 35 of the plug housing 30. The substrate mounting portion 620b is in a state of being retracted toward the mating side (α1) with the plug connector 2 compared to the substrate mounting portion 52 of the socket terminal 50. In other words, the substrate mounting portion 52 of the socket terminal 50 is in a state of being protruded toward the side (α2) opposite to the mating side (α1) with the plug connector 2 compared to the substrate mounting portion 620b of the socket housing 60 (refer to Fig.15 , 17 , 18, and 20, etc.). As a result, the substrate mounting portion 52 of the socket terminal 50 is arranged closer to the substrate than the substrate mounting portion 620b of the peripheral wall 61. For example, even if the substrate is deformed, the socket terminal 50 for signal transmission can be reliably mounted on the substrate in preference to the socket housing 60 for shielding.

[0084] A portion of the length portion 62, namely, a central portion 620 located near the center in the length direction (β) is formed mainly by bending. A recessed locking portion 620a is provided along the length direction (β) on the inner peripheral surface 61a of the socket housing 60 in the central portion 620. When the plug housing 30 of the plug connector 2 is embedded in the socket housing 60 of the socket connector 5, the locking protrusion 320a provided on the plug housing 30 of the plug connector 2 is locked with the locking portion 620a, and the plug connector 2 is locked with the socket connector 5 in the length direction (β).

[0085] The other part of the length portion 62, namely, each end portion 621 located near the end in the length direction (β), is mainly formed by drawing, unlike the central portion 620. In this way, in the length portion 62, both bending and drawing are used, so in order to achieve different types of processing, a cutout 623 is provided between the end portion 621 and the central portion 620.

[0086] The end portion 621 includes a main body 621a, a bent portion 621b, and an angle top 630 formed in cooperation with the bent angle portion 63. The main body 621a forms a flat surface on the "α-β plane". The bent portion 621b is provided in a state slightly bent toward the mating side (α1) with the plug connector 2 compared to the main body 621a.

[0087] The width portion 64 includes an outer wall portion 641 constituting the outermost wall of the peripheral wall 61 in the length direction (β), an inner wall component 642 located on the inner side of the connector 2 than the outer wall portion 641 in the length direction (β), and a top portion 640 located between the outer wall portion 641 and the inner wall component 642.

[0088] The outer wall 641 includes a main body 641a and a bent portion 641b. The main body 641a is substantially flat along the "α-γ plane", and the bent portion 641b is slightly bent toward the mating side (α1) with the plug connector 2 compared to the main body 641a.

[0089] The inner wall member 642 is a member that cooperates with the socket housing 70 to form a part of the receiving portion 79 into which the end portion 49 of the plug connector 2 in the length direction (β) is embedded. The inner wall member 642 includes a base 642a, a stopper portion 642b, a rising portion 642c, and a covering portion 642d. The base 642a is a portion that forms the bottom of the inner wall member 642 and constitutes a part of the bottom of the socket connector 5, and is designed to be wider in the width direction (γ). The bottom surface of the base 642a (see Fig.16) can also be used as a substrate mounting portion. The locking portion 642b is a portion that stands up in a state of bending toward the mating side (α1) with the plug connector 2 at one end of the base 642a in the length direction (β), more specifically, at one end of the base 642a on the outside of the plug connector 2. A locking protrusion 650 that protrudes toward one side of the receiving portion 79 is provided on the locking portion 642b. The locking protrusion 650 has a width substantially the same as that of the base 642a in the width direction (γ), and when the plug connector 2 is mated with the receptacle connector 5, it is embedded in the locking recess 341c provided in the plug housing 30 of the plug connector 2, so that the plug connector 2 and the receptacle connector 5 are locked. The standing portion 642c is a portion that stands up linearly toward the mating side (α1) with the plug connector 2 at the other end of the base 642a in the length direction (β), more specifically, at one end of the base 642a on the inside of the plug connector 2, so as to cover a part of the center island 75. The rising portion 642c covers a portion of the wall surface on the end side of the central island 75 to improve its strength. The covering portion 642d is a portion extending on the "β-γ plane" formed by bending the front end of the rising portion 642c, and covers a portion of the top surface of the central island 75 to improve the strength of the central island 75.

[0090] The top portion 640 is an elongated flat surface along the "β-γ plane" and is positioned at the end of the socket housing 60 (see FIG. 1 ) on the mating side (α1) with the socket connector 5 together with the corner top portion 630 formed by the length portion 62 and the bent corner portion 63. Fig.14 , Fig.15 wait).

[0091] The curved corner portion 63 includes a main body portion 631a formed linearly in the mating direction (α), and a curved portion 631b provided in a state slightly curved toward the mating side (α1) with the plug connector 2 compared to the main body portion 631a, and includes an angle top portion 630 formed in cooperation with the length portion 62 at its top. The angle top portion 630 is the same as the angle top portion 330 formed in the curved corner portion 33 of the plug connector 2, and is a flat surface along the "β-γ plane" formed in a substantially triangular shape.

[0092] The curved corner portion 63 is continuous with the length portion 62 and the width portion 64 in the circumferential direction. More specifically, the main body 631a of the curved corner portion 63 is continuous with the main body 621a of the length portion 62 and the main body 641a of the width portion 64, the curved portion 631b of the curved corner portion 63 is continuous with the curved portion 621b of the length portion 62 and the curved portion 641b of the width portion 64, and the corner top 630 of the curved corner portion 63 is continuous with the top 640 of the width portion 64.

[0093] like Fig.15As clearly shown, the center island 75 and the terminal arrangement portions 76A and 76B of the receptacle connector 5 are positioned at the end of the receptacle housing 60 on the mating side (α1) with the plug connector 2. Further, these portions are in a state of protruding toward the mating side (α1) with the plug connector 2 compared to the receptacle housing 60, in other words, are arranged at a position closer to the plug connector 2. When the plug connector 2 and the receptacle connector 5 are mated, these portions function as lead-in portions with respect to the first recess 45 and the second recess 46A and 46B of the plug connector 2, respectively, and as a result, the mating operation can be easily performed. In addition, in the present embodiment, the center island 75 of the receptacle connector 5 is positioned slightly toward the mating side (α1) with the plug connector 2 compared to the terminal arrangement portions 76A and 76B, but from the viewpoint of introduction, these differences are not very large.

[0094] In addition, the corner top 630 and the top 640 of the width portion 64 are in a state of protruding toward the mating side (α1) with the plug connector 2 compared with the central portion 620 of the length portion 62, in other words, they are arranged at a position closer to the plug connector 2. As a result, when the plug connector 2 is mated with the receptacle connector 5, these portions are more likely to abut against the plug housing 30 of the plug connector 2 before the central portion 320 of the length portion 32. Since the corner top 630 and the top 640 are the strongest portions of the receptacle connector 5, these portions can be abutted against the plug housing 30 to effectively prevent damage to other portions of the receptacle connector 5 with lower strength.

[0095] Fig.21 , Fig. 22 The manufacturing process of the receptacle connector 5 using insert molding is schematically shown.

[0096] like Fig.21 As shown, the socket terminal 50 is supported by the belt member 3A extending from the bracket 3A, and the socket housing 60 is supported by the belt member (61b) extending from the bracket, and they are transported to a specified position where a mold (not shown) is provided.

[0097] After the transferred socket terminal 50 and socket housing 60 are covered with a mold, resin is poured into the mold to solidify the resin forming the socket housing 70 . Fig. 22 The state after the socket housing 70 is fixed to the socket terminal 50 and the socket shell 60 and the mold is removed is shown.

[0098] Thereafter, the band members 3Aa and 3Ac of the bracket 3A are cut at the predetermined positions 3Ab and 3Ad, respectively, and the bracket is cut at the predetermined cutting position to complete. After cutting, a portion 61b of the band member (3Ac) at the cutting position (3Ad) remains as a part of the socket housing 60 in a state exposed to the outside of the socket connector 2. This portion 61b can be effectively used as a part of the substrate mounting portion of the socket connector 5.

[0099] According to the above manufacturing process, after the socket connector 5 is completed, the socket housing 70 is set in a state of being closely attached to the inner circumferential surface 61a of the socket shell 60 and the socket terminal 50. Among these closely attached parts, it naturally has a shape corresponding to the inner circumferential surface 61a of the socket shell 60, and also has a shape determined by the relationship with the socket terminal 50.

[0100] For example, the socket housing 70 includes a central island 75 at the center of the socket connector 5, and also includes a terminal holding portion 760 at a position sandwiching the central island 75 along the width direction (β), and the terminal holding portion 760 forms the terminal arrangement portions 76A and 76B together with the socket terminal 50. The terminal holding portion 760 also includes a terminal inner resin 760a filled in the inside of the terminal, and a terminal inter-resin 760b arranged between the terminals. A recessed portion 751 is provided in the central island 75, and the recessed portion 751 corresponds to the width portion 64 of the socket housing 60, in particular, the rising portion 642c and the covering portion 642d constituting the inner wall member 642 thereof.

[0101] In addition, the socket housing 70 has a peripheral wall 71 corresponding to the peripheral wall 61 of the socket housing 60, and the peripheral wall 71 includes a pair of width portions 74 extending in the width direction (γ) at both ends in the length direction (β), and four curved corner portions 73 curved in the circumferential direction to connect the length portion 72 (721) and the width portion 74. However, unlike the peripheral wall 61 of the socket housing 60, the portion (72) corresponding to the pair of length portions extending in the length direction (β) only has the end portion 721 located near the end in the length direction (β), and does not have a portion corresponding to the center portion 720 located near the center. In other words, the socket housing 70 is not provided on the inner peripheral surface 61a of the peripheral wall 61 along the length direction (β) where the socket terminals 50 are arranged. In this way, by adopting a structure in which the socket housing 70 is not provided, the miniaturization of the connector assembly is achieved, especially in the width direction (β).

[0102] The width portion 74 includes a resin 740 that fills a cross-sectional space of the socket housing 60 formed by the outer wall portion 641, the inner wall member 642, and the top portion 640 that constitute the width portion 64 of the socket housing 60. By insert molding, the cross-sectional space is substantially entirely filled with the resin 740, so that the strength of the width portion 64 of the socket housing 60, to which a large force is likely to be applied when the plug connector 2 and the socket connector 5 are mated, can be increased, thereby effectively preventing the plug connector 2 from being damaged.

[0103] The bent corner portion 73 includes a resin 730 that fills a cross-sectional space formed by the main body portion 631 a , the bent portion 631 b , and the corner top portion 630 formed in cooperation with the length portion 62 , which constitute the bent corner portion 63 of the socket housing 60 .

[0104] Reference Figure 23 to Figure 26 The cross-sectional view of the plug connector 2 and the receptacle connector 5 is used to illustrate the mating state, especially the mating state on the "α-γ plane" near the center in the longitudinal direction (β). Here, Fig.23 and Fig.24 It is a combination Figure 7 and Fig.17 A diagram showing the state before fitting is shown. Fig.25 and Fig.26 It is a combination Fig.10 and Fig. 20 A diagram showing the fitted state.

[0105] When the plug connector 2 is mated with the receptacle connector 5, the first protrusion 75 of the receptacle connector 5 is embedded in the first recess 45 of the plug connector 2, the pair of terminal arrangement portions 47A, 47B of the plug connector 2 are respectively embedded in the pair of first recesses 77A, 77B of the receptacle connector 5, the pair of terminal arrangement portions 76A, 76B of the receptacle connector 5 are respectively embedded in the pair of second recesses 46A, 46B of the plug connector 2, and the peripheral walls 31 of the pair of opposing plug housings 30 of the plug connector 2 are respectively embedded in the pair of second recesses 78A, 78B of the receptacle connector 5. As a result, the base 21 of the plug terminal 20 elastically contacts the elastic contact 54 of the elastic contact portion 53 of the socket terminal 50, the contact portion 23 of the plug terminal 20 contacts the fixed contact portion 57 of the socket terminal 50 in a state where the engaging contact 57a of the fixed contact portion 57 is engaged with the engaging portion 23a of the contact portion 23, and the central portion 320 of the length portion 32 of the plug housing 30 contacts the central portion 620 of the length portion 62 of the socket housing 60 in a state where the engaging protrusion 320a of the central portion 320 is engaged with the engaging portion 620a of the central portion 620. Furthermore, at this time, a portion (length portion 42) of the plug housing 40 that is in close contact with the inner wall 31 of the plug shell 30 is also embedded in the second recesses 78A and 78B, respectively. Therefore, through the embedded portion of the housing and in addition through the action of the resin 760c covering the surface of the fixed leg 56 of the socket terminal 50, the plug terminals 20 and 50 that transmit signals are completely electrically separated from the plug housings 30 and 60 that perform the grounding function.

[0106] In addition, if Fig.24 , 26 As clearly shown, in this embodiment, the substrate mounting portion 620b of the socket housing 60 is formed on the end surface of the socket housing 60 extending linearly in the mating direction (α) by utilizing the fracture surface of the socket housing 60. Therefore, for the plug housing 30 embedded in the socket housing 60, a larger mounting surface relative to the substrate can be ensured by utilizing the substrate mounting portion 35 extending outward, and the connector assembly can be miniaturized particularly in the width direction (β). In addition, the socket housing 70 is not provided on the inner peripheral surface 61a of the central portion 620 of the socket housing 60. Therefore, the plug housing 30 can be embedded in the socket housing 60 with a relatively small force. Nevertheless, the plug housing 40 is closely attached to the inner peripheral surface 31a of the central portion 320 of the plug housing 30. Therefore, the connector assembly composed of the plug connector 2 and the socket connector 5 can ensure sufficient strength as a whole.

[0107] It should be understood that the above description relates to preferred embodiments and only represents products and methods of making the products. It is believed that variations and modifications of different embodiments based on the above teachings will be obvious to those skilled in the art. Therefore, the illustrative embodiments and alternative embodiments can be implemented in a manner that does not depart from the spirit of the products and methods described in the attached claims.

Claims

1. A connector assembly, comprising a first connector of a substrate-mounted type and a second connector of a substrate-mounted type that can be mated with the first connector, characterized in that: The first connector comprises: a plurality of first terminals arranged along a length direction intersecting with a mating direction of the second connector; a conductive first housing having a first peripheral wall surrounding the plurality of first terminals on any surface intersecting the mating direction; and an insulating first housing for holding the plurality of first terminals and the first housing, The second connector comprises: a plurality of second terminals arranged along a length direction intersecting with a mating direction of the first connector; A conductive second housing having a second peripheral wall surrounding the plurality of second terminals on any surface intersecting the mating direction; as well as an insulating second housing for holding the plurality of second terminals and the second housing, The first housing is integrated with the plurality of first terminals and the first shell by insert molding. The second housing is integrated with the plurality of second terminals and the second shell by insert molding. At least one of the first and second peripheral walls has a seamless structure throughout the entire periphery.

2. The connector assembly according to claim 1, wherein: The first housing is configured to be fitted inside the second housing when the second connector is fitted therewith.

3. The connector assembly according to claim 1, wherein: The first housing is provided with a board mounting portion over the entire circumference of the first housing, and the board mounting portion extends toward the outside of the first connector on a board mounting surface.

4. The connector assembly according to claim 1, wherein: The first housing is provided in close contact with an inner peripheral surface of the first peripheral wall along at least the longitudinal direction in which the plurality of first terminals are arranged.

5. The connector assembly according to claim 1, wherein: At least any one of the board mounting portions of the plurality of first terminals protrudes toward a side opposite to a mating side of the second connector relative to the board mounting portion of the first housing.

6. The connector assembly according to claim 1, wherein: A portion of the first housing located at an end of the first connector in the length direction and / or a portion of the first shell protrudes toward the mating side with the second connector compared to another portion of the first housing located near the center of the first connector in the length direction.

7. The connector assembly according to claim 1, wherein: A portion of the first shell located at the end of the first connector in the length direction and / or a portion of the first housing protrudes toward the mating side with the second connector compared to a first protrusion formed by the plurality of first terminals and a terminal retaining portion of the first housing that retains the plurality of first terminals.

8. The connector assembly according to claim 1, wherein: A pair of first protrusions is formed by the plurality of first terminals and a terminal holding portion of the first housing that holds the plurality of first terminals. In a width direction orthogonal to both the fitting direction and the longitudinal direction, a first recessed portion into which the first protrusion of the second connector is fitted is provided between the pair of first protrusions along the longitudinal direction.

9. The connector assembly according to claim 1, wherein: A first protrusion is formed by the plurality of first terminals and a terminal holding portion of the first housing that holds the plurality of first terminals. In a width direction orthogonal to both the fitting direction and the longitudinal direction, a second recess into which the second protrusion of the second connector is fitted is provided along the longitudinal direction between the first protrusion and a first peripheral wall of the first housing extending along the longitudinal direction.

10. The connector assembly according to claim 1, wherein: The first housing has a width portion at an end portion in the longitudinal direction, and the width portion extends in a width direction orthogonal to both the fitting direction and the longitudinal direction. The width portion includes: An outer wall portion constituting an outermost wall of the first peripheral wall in the length direction; an inner wall portion located on an inner side of the first connector than the outer wall portion in the longitudinal direction; and a top portion, located between the outer wall portion and the inner wall portion, and positioned at the extreme end of the first housing on the mating side with the second connector, A cross-sectional space formed by the outer wall portion, the inner wall portion, and the top portion is filled with the resin of the first case.

11. The connector assembly according to claim 10, characterized in that: The inner wall portion is provided with a substrate mounting portion.

12. The connector assembly according to claim 1, wherein: The second housing is configured to fit outside the first housing when the second housing is mated with the first connector.

13. The connector assembly according to claim 1, wherein: A board mounting portion formed by a cross section of the second housing is provided on an end surface of the second housing that extends linearly in the mating direction and is opposite to a mating side of the first connector.

14. The connector assembly according to claim 1, wherein: The second housing is not provided on the inner peripheral surface of the second peripheral wall along at least the longitudinal direction where the plurality of second terminals are arranged.

15. The connector assembly according to claim 1, wherein: At least any one of the board mounting portions of the plurality of second terminals protrudes toward a side opposite to a mating side of the first connector relative to the board mounting portion of the second housing.

16. The connector assembly according to claim 1, wherein: The second protrusion formed by the multiple second terminals and the terminal retaining portion of the second shell that retains the multiple second terminals, and / or the first protrusion of the second shell located near the center of the second connector in the length direction protrudes toward the mating side with the first connector compared to the second shell.

17. The connector assembly according to claim 1, wherein: A portion of the second housing located at an end of the second connector in the longitudinal direction protrudes toward the mating side with the first connector compared to another portion of the second housing located near the center of the second connector in the longitudinal direction.

18. The connector assembly according to claim 1, wherein: A pair of second protrusions are formed by the plurality of second terminals and the terminal holding portion of the second housing that holds the plurality of second terminals. In the width direction orthogonal to both the mating direction and the length direction, between each of the pair of second protrusions and the first protrusion of the second shell located near the center of the second connector in the length direction, a pair of first recesses are provided along the length direction for the first protrusion of the first connector to be embedded.

19. The connector assembly according to claim 1, wherein: A pair of second protrusions are formed by the plurality of second terminals and the terminal holding portion of the second housing that holds the plurality of second terminals. In a width direction orthogonal to both the mating direction and the length direction, a pair of second recesses are provided along the length direction between each of the pair of second protrusions and the second peripheral wall of the second housing extending along the length direction, into which the first peripheral wall of the first housing of the first connector is fitted.

20. The connector assembly according to claim 1, wherein: The second housing has a width portion at an end portion in the longitudinal direction, and the width portion extends in a width direction orthogonal to both the fitting direction and the longitudinal direction. The width portion includes: An outer wall portion constituting an outermost wall of the second peripheral wall in the length direction; an inner wall member located on an inner side of the second connector than the outer wall portion in the longitudinal direction; and a top portion, located between the outer wall portion and the inner wall member and positioned at the extreme end of the second housing on the mating side with the first connector, A cross-sectional space formed by the outer wall portion, the inner wall member, and the top portion is filled with the resin of the second housing.

21. The connector assembly according to claim 20, characterized in that: The inner wall member is provided with a substrate mounting portion.

22. The connector assembly according to claim 20, wherein: The inner wall component cooperates with the second shell to form a receiving portion for receiving the end portion of the first connector in the longitudinal direction, and the inner wall component has: a base; a locking portion, which stands up toward the mating side with the first connector at one end of the base located on the outer side of the second connector along the longitudinal direction; a rising portion, which stands up toward the mating side with the first connector at the other end of the base located on the inner side of the second connector along the longitudinal direction, so as to cover the first protrusion of the second shell located in the center in the width direction and close to the center of the second connector in the longitudinal direction; and a covering portion, which extends from the rising portion and covers a portion of the top surface of the first protrusion.

23. The connector assembly according to claim 12, wherein: The surfaces of the plurality of second terminals facing the embedded first housing may be covered with resin.

Images