Connector assembly

Abstract

The first connector (100) includes a first insulator (30), first terminals (41, 42), and a first shell (50), and is mounted on a first substrate (300). The second connector (200) includes a second insulator (60), second terminals (71, 72), and a second shell (80), and is mounted on a second substrate (400). In a connector assembly in which the first connector (100) and the second connector (200) are connected together, a frame-shaped first ground pattern (310) formed on the first substrate (300) is soldered to the first shell (50) by a first solder (320), and a frame-shaped second ground pattern (410) formed on the second substrate (400) is soldered to the second shell (80) by a second solder (420). An internal space where the first terminals (41, 42) and the second terminals (71, 72) are located is completely shielded from the outside without any gaps.

Description

Technical Field

[0001] The present invention relates to a connector assembly in which two board-to-board connectors mounted on two boards are connected to each other. Background Art

[0002] Figure 1A , 1B , 2A, and 2B show the structure of a connector assembly disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2017-33654). Figure 1A , 1B A first board-to-board connector 10 constituting a connector assembly is shown. Figure 2A , 2B The second board-to-board connector 20 constituting the connector assembly is shown. Hereinafter, the board-to-board connector is simply referred to as a connector.

[0003] The first connector 10 and the second connector 20 respectively have elongated insulating housings 11 and 21. A plurality of signal contact members 13 are arranged at a predetermined pitch along the length direction of the insulating housing 11, and a plurality of signal contact members 23 are arranged at a predetermined pitch along the length direction of the insulating housing 21 (multi-pole connector).

[0004] The insulating housing 11 has base end portions 11a at both ends in the length direction (connector length direction) of the insulating housing 11, and the insulating housing 21 has base end portions 21a at both ends in the length direction (connector length direction) of the insulating housing 21. An elongated central protrusion 11b is provided between the two base end portions 11a, and an elongated central recess 21b is provided between the two base end portions 21a.

[0005] The conductive shell 12 is a shielding wall for the signal contact member 13 and is mounted on the insulating housing 11. The conductive shell 22 is a shielding wall for the signal contact member 23 and is mounted on the insulating housing 21. The conductive shell 12 surrounds the outer peripheral portion of the insulating housing 11, and the conductive shell 22 surrounds the outer peripheral portion of the insulating housing 21.

[0006] The conductive shell 12 includes two L-shaped metal parts. The two metal parts form a frame structure. A plurality of ground connection parts 12 b are formed at the lower edge of the long side wall plate 12 a of the conductive shell 12 .

[0007] A plurality of ground connection portions 12b are arranged at a certain interval. A space, i.e., a side inspection window 12c, is formed between adjacent ground connection portions 12b to allow visual inspection of the substrate connection end portions 13a of the signal contact member 13. The length of the side inspection window 12c in the connector length direction is equivalent to the length of the three substrate connection end portions 13a that can be visually inspected. Through the side inspection window 12c, the connection state of the substrate connection end portion 13a or the assembly state of the connector can be confirmed.

[0008] A flat cover 12d is provided on the upper edge of the long side wall plate 12a of the conductive shell 12. A plurality of contact pieces 12e are formed at regular intervals across the boundary between the flat cover 12d and the long side wall plate 12a. The contact pieces 12e are formed by cutting a portion of a metal part and slightly lifting the cut portion.

[0009] The conductive shell 22 includes two U-shaped metal parts. The two metal parts form a frame structure. A plurality of ground connection parts 22 b are formed at the lower edge of the long side wall plate 22 a of the conductive shell 22 .

[0010] A plurality of ground connection portions 22b are arranged at a certain interval. A space, i.e., a side inspection window 22c, is formed between adjacent ground connection portions 22b so that the substrate connection end portion 23a of the signal contact component 23 can be visually viewed. The length of the side inspection window 22c in the connector length direction is equivalent to the length of the three substrate connection end portions 23a that can be visually viewed. Through the side inspection window 22c, the connection state of the substrate connection end portion 23a or the connector assembly state can be confirmed.

[0011] When the first connector 10 and the second connector 20 mounted on the two wiring substrates are fitted with each other, the conductive shell 22 provided in the second connector 20 covers the outer periphery of the first connector 10 from the outside, and the inner wall surface of the conductive shell 22 elastically contacts the contact piece 12e provided in the conductive shell 12 of the first connector 10. Therefore, the conductive shell 12 and the conductive shell 22 are grounded to each other. Summary of the invention

[0012] Problems to be solved by the invention

[0013] In response to miniaturization, high-density mounting, or use of high-frequency electrical signals in electronic devices using board-to-board connectors, it is important to strengthen EMI measures of the board-to-board connectors.

[0014] According to the above-mentioned connector assembly, the first connector 10 and the second connector 20 respectively include the conductive shell 12 and the conductive shell 22, and electromagnetic shielding is achieved by the conductive shell 12 and the conductive shell 22. However, since the conductive shell 12 and the conductive shell 22 respectively include the side inspection window 12c and the side inspection window 22c, electromagnetic leakage occurs from the side inspection windows 12c and 22c, and thus the shielding effect is weakened.

[0015] An object of the present invention is to provide a connector assembly in which two board-to-board connectors mounted on two boards are connected to each other, and in which high electromagnetic shielding performance is obtained.

[0016] Technical solutions to solve problems

[0017] The technical matters described herein are not intended to explicitly or implicitly limit the invention described in the claims, nor are they intended to indicate that persons other than the beneficiaries (e.g., applicants and right holders) of the invention may recognize such limitations, but are simply recorded to facilitate understanding of the main points of the invention. The summary of the invention from other viewpoints can be understood, for example, based on the claims of the patent application at the time of filing.

[0018] The connector assembly has a structure in which the shell of the one board-to-board connector, the shell of the other board-to-board connector, and portions other than the solder cannot be seen when the connector assembly is viewed from the side.

[0019] Effects of the Invention

[0020] The connector assembly of the present invention has high electromagnetic shielding performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1A It is a perspective view of a first connector constituting a connector assembly (conventional technology).

[0022] Figure 1B This is a front view of a first connector constituting a connector assembly (prior art).

[0023] Figure 2A It is a perspective view of a second connector constituting a connector assembly (conventional technology).

[0024] Figure 2B This is a front view of a second connector constituting a connector assembly (prior art).

[0025] Figure 3A This is an upper perspective view of a first connector constituting the connector assembly according to the embodiment.

[0026] Figure 3B This is a bottom perspective view of a first connector constituting the connector assembly according to the embodiment.

[0027] Figure 4 is a perspective view of a first shell included in the first connector.

[0028] Figure 5 This is a perspective view of a first insulator included in the first connector (only the first terminal is attached to the first insulator shown in the figure).

[0029] Fig. 6A It is a perspective view showing the first connector mounted on the first substrate.

[0030] Figure 6B It is a front view showing the first connector mounted on the first substrate.

[0031] Fig. 7A This is an upper perspective view of the second connector constituting the connector assembly according to the embodiment.

[0032] Figure 7B This is a bottom perspective view of a second connector constituting the connector assembly according to the embodiment.

[0033] Figure 8 is a perspective view of a second shell included in the second connector.

[0034] Fig. 9 This is a perspective view of a second insulator included in the second connector (only the second insulator shown in the figure is equipped with a second terminal).

[0035] Fig. 10A It is a perspective view showing the second connector mounted on the second substrate.

[0036] Fig. 10B It is a front view showing the second connector mounted on the second substrate.

[0037] Fig.11 It is a perspective view of the connector assembly according to the embodiment.

[0038] Fig.12 It is a cross-sectional view of the connector assembly according to the embodiment.

[0039] Fig.13 It is a front view of the connector assembly according to the embodiment.

[0040] Description of Reference Numerals

[0041] 10First Connector

[0042] 11Insulation shell

[0043] 11a Base end

[0044] 11b central convex part

[0045] 12 Conductive shell

[0046] 12a Length Sidewall Panel

[0047] 12b Ground connection

[0048] 12c Side inspection window

[0049] 12d flat mask

[0050] 12e contact piece

[0051] 13Signal contact parts

[0052] 13a Substrate connection end

[0053] 20 Second connector

[0054] 21 Insulation shell

[0055] 21a Base end

[0056] 21b central fovea

[0057] 22 Conductive shell

[0058] 22a Length Side Wall Panel

[0059] 22b Ground connection

[0060] 22c Side inspection window

[0061] 23 signal contact parts

[0062] 23a Substrate connection end

[0063] 30 First Insulator

[0064] 31 recess

[0065] 32 slots

[0066] 41, 42 first terminal

[0067] 41a, 42a contact portion

[0068] 41b, 42b connection part

[0069] 50 First Shell

[0070] 51, 52 side wall

[0071] 51a, 52a bent portion

[0072] 53 extension

[0073] 53a Rising part

[0074] 53b protrusion

[0075] 54 Turnaround

[0076] 54a Foot

[0077] 55 First Gap

[0078] 56 Gap

[0079] 57 First Gap

[0080] 58 incision

[0081] 60 Second Insulator

[0082] 61 bottom plate

[0083] 62 side wall

[0084] 63 concavity

[0085] 71, 72 second terminal

[0086] 71a, 72a connection part

[0087] 73 shielding plate

[0088] 73a Columnar part

[0089] 73b extension

[0090] 80 Second Shell

[0091] 81, 82 side wall

[0092] 81a, 82a convex parts

[0093] 81b extension

[0094] 82b protrusion

[0095] 83 connection part

[0096] 84, 85 Second Gap

[0097] 86 Second Gap

[0098] 87 Second gap

[0099] 100 First Connector

[0100] 200 Second Connector

[0101] 300 First substrate

[0102] 310 first ground pattern

[0103] 320 First Solder

[0104] 400 Second substrate

[0105] 410 second ground pattern

[0106] 420 Second Solder DETAILED DESCRIPTION

[0107] Embodiments of the present invention will be described with reference to the drawings. A connector assembly according to the embodiment includes a first connector 100 and a second connector 200 .

[0108] Figure 3A , 3B 1 shows the first connector 100. The first connector 100 includes a first insulator 30, first terminals 41 and 42 held by the first insulator 30, and a square frame-shaped conductive first shell 50 as an outer shell of the first connector 100. Figure 4 The first shell 50 is shown in detail. Figure 5 The first connector 100 is shown with the first housing 50 removed.

[0109] The first insulator 30 is made of resin and has a substantially rectangular parallelepiped shape as a whole. First terminals 41 are attached to both ends of the first insulator 30 in the longitudinal direction, and four first terminals 42 are attached to the center of the first insulator 30 .

[0110] The first terminal 41 has two contact portions 41a facing each other, and the first terminal 42 has two contact portions 42a facing each other. The connection portions 41b and 42b of the first terminals 41 and 42 for connecting to the first substrate are located on the bottom surface of the first insulator 30. In this example, the first terminal 41 is used for transmission of high-frequency signals (high-speed transmission), and the first terminal 42 is used for transmission of low-frequency signals (low-speed transmission).

[0111] The first shell 50 includes two metal parts each having a U-shaped side wall. The first shell 50 has a square frame structure formed by the two metal parts. The two metal parts are formed by bending a metal plate. The side wall 51 located on the two long sides of the square frame structure and the side wall 52 located on the two short sides are formed with curved parts 51a and 52a that are curved toward the inside of the square frame structure at their respective upper ends.

[0112] Two strip-shaped extensions 53 extending toward the inner side of the square frame structure are formed at the lower end of the side wall 51. At the lower end of the first shell 50, cut depths 58 are formed on both sides of the extensions 53 to facilitate bending of the extensions 53. The extensions 53 are bent at multiple locations. In the square frame structure, one extension 53 of one side wall 51 and one extension 53 of the other side wall 51 are opposite to each other, and the other extension 53 of one side wall 51 and the other extension 53 of the other side wall 51 are opposite to each other.

[0113] The extension part 53 has: a bottom extending from the side wall part 51 toward the inside of the square frame structure, a rising part 53a extending vertically upward from the bottom, a top extending from the rising part 53a toward the inside of the square frame structure, and a U-shaped return part 54 extending vertically downward from the top and then returning vertically upward. The return part 54 of one extension part 53 and the return part 54 of another extension part 53 opposite to the one extension part 53 are located in the same plane, and the foot part 54a at the front end of the former return part 54 and the foot part 54a at the front end of the latter return part 54 are close to each other. Two protrusions 53b protrude from the rising part 53a in the length direction of the square frame structure.

[0114] Two first notches 55 are formed at the lower end of the side wall portion 51. The positions of the two first notches 55 are closer to the center of the metal part than the positions of the two extension portions 53. The positions of the first notches 55 correspond to the positions of the connecting portions 42b of the first terminals 42 exposed from the bottom surface of the first insulator 30. In the first shell 50 having a square frame structure, a slight gap 56 is formed between the two metal parts. First notches 57, like chamfers, are formed at the lower ends of the side wall portion 52 located on both sides of the gap 56.

[0115] The first shell 50 is mounted on the first insulator 30 by covering the first shell 50 with the first insulator 30 and then pressing the first shell 50 into the first insulator 30. The rising portions 53a of the four extension portions 53 are pressed into the four recesses 31 of the first insulator 30. The folded portions 54 of the extension portions 53 are inserted into the slits 32 of the first insulator 30. As a result, Figure 3A , 3B The first connector 100 is shown completed.

[0116] Fig. 6A , 6B 1 shows the first connector 100 mounted on the first substrate 300. Fig. 6A , 6B Although the connecting portions 41b and 42b of the first terminals 41 and 42 are hidden and invisible, they are soldered to the pads of the first substrate 300. Since the connecting portion 42b of the first terminal 42 can be visually seen from the outside of the side wall portion 51 of the first shell 50 through the first notch 55, the position of the connecting portion 42b or the state of soldering can be confirmed.

[0117] In this example, a square frame-shaped first ground pattern 310 corresponding to the frame shape of the first shell 50 is formed on the first substrate 300. The first shell 50 and the first ground pattern 310 are soldered to each other by a first solder 320 along the entire circumference of the first ground pattern 310. Fig. 6A , 6BIn the figure, the first solder 320 is drawn transparently for the convenience of explanation and is indicated by hatching.

[0118] like Fig. 6A , 6B As shown, the first notches 55 , 57 and the cut depth 58 are blocked by the first solder 320 .

[0119] Next, the second connector 200 will be described.

[0120] Fig. 7A , 7B 2 shows the second connector 200. The second connector 200 includes a second insulator 60, second terminals 71 and 72 held by the second insulator 60, a shield plate 73 held by the second insulator 60, and a square frame-shaped conductive second shell 80 as an outer shell of the second connector 200. Figure 8 The second shell 80 is shown in detail. Fig. 9 The second connector 200 of the second housing 80 is shown removed.

[0121] The second insulator 60 is made of resin and has a bottom plate 61 and four side walls 62 provided at four corners of the bottom plate 61. Second terminals 71 are respectively installed at both ends in the length direction of the bottom plate 61. Four second terminals 72 are installed at the center of the bottom plate 61. One shielding plate 73 is located between one second terminal 71 and the four second terminals 72, and one shielding plate 73 is located between another second terminal 71 and the four second terminals 72.

[0122] The columnar second terminal 71 has a connection portion 71a for connecting to the second substrate at its lower end. The plate-shaped second terminal 72 has a connection portion 72a for connecting to the second substrate at its lower end. The second terminal 71 is used for transmitting high-frequency signals, and the second terminal 72 is used for transmitting low-frequency signals.

[0123] The shielding plate 73 includes an elongated extension portion 73b and two columnar portions 73a extending from the extension portion 73b, and the two columnar portions 73a protrude upward from the bottom plate portion 61. The extension portion 73b is a connection portion for connecting to the second substrate.

[0124] The second shell 80 in a square frame shape is formed by bending a metal plate. Figure 8 As shown in FIG. 1 , the rectangular frame includes: side wall portions 81 located at two long sides of the rectangular frame, side wall portions 82 located at short sides of the rectangular frame, and two connecting portions 83 connecting the upper ends of the side wall portions 81 and the upper ends of the side wall portions 82. The two connecting portions 83 have plate surfaces that slightly block both ends of the long side direction of the rectangular frame. Second notch portions 87 are formed at the lower ends of the extension portions 81b located at both sides of the side wall portions 82.

[0125] An elongated convex portion 81a extending in the side direction is formed on the outer side of the side wall portion 81. An elongated convex portion 82a extending in the side direction is also formed on the outer side of the side wall portion 82. Extended portions 81b bent toward the side wall portion 82 are formed at both ends of the side wall portion 81 in the side direction.

[0126] Two second notches 84 are formed at the lower end of the side wall portion 81. Two second notches 85 are also formed at the lower end of the side wall portion 81. The two second notches 84 are located between the two second notches 85. The second notches 84 correspond to the position of the connection portion 72a of the second terminal 72 exposed from the bottom portion of the second insulator 60, and the second notches 85 correspond to the position of the extension portion 73b of the shielding plate 73 exposed from the bottom portion of the second insulator 60. A second notch 86 is formed at the lower end of the side wall portion 82. The protrusions 82b protrude outward from both ends of the side direction of the side wall portion 82. The second shell 80 is mounted on the second insulator 60. The second shell 80 is mounted on the second insulator 60 by covering the second shell 80 with the second insulator 60 and then pressing the second shell 80 into the second insulator 60. The side wall portion 82 is pressed into the recess 63 formed on the outer side of the side wall 62 across the two side walls 62. As a result, the second connector 200 is completed.

[0127] Fig. 10A , 10B 400. Fig. 10A , 10B Although hidden and not visible, the connecting portions 71a and 72a of the second terminals 71 and 72 are soldered to the pads of the second substrate 400. Since the connecting portion 72a of the second terminal 72 can be visually seen from the outside of the side wall portion 81 of the second shell 80 through the second notch 84, the position of the connecting portion 72a or the state of soldering can be confirmed.

[0128] In this example, a second ground pattern 410 having a square frame shape corresponding to the frame shape of the second shell 80 is formed on the second substrate 400. The second shell 80 and the second ground pattern 410 are soldered to each other by a second solder 420 along the entire circumference of the second ground pattern 410. Fig. 10A , 10B In the figure, the second solder 420 is depicted transparently for the convenience of explanation and is indicated by hatching.

[0129] like Fig. 10A , 10B As shown, the second notches 84, 85, 86 and 87 are blocked by the second solder 420. The end of the extension portion 73b of the shielding plate 73 is located in the second notch 85. The end of the extension portion 73b and the second shell 80 are both soldered to the second ground pattern 410 by the second solder 420.

[0130] The first connector 100 and the second connector 200 are connected to each other in a state where the first substrate 300 and the second substrate 400 are parallel to each other. Fig.11 The figure shows a connector assembly in which the first connector 100 and the second connector 200 are connected to each other. Fig.11 In the figure, the first substrate 300 and the second substrate 400 are omitted. Fig.12 express Fig.11 A cross section of the connector assembly is shown. Fig.13 This is the front view of the connector assembly.

[0131] In the connector assembly, the first terminal 41 and the second terminal 71 are connected to each other, and the first terminal 42 and the second terminal 72 are connected to each other. The protrusions 81a and 82a provided on the second shell 80 go over the bent portions 51a and 52a of the first shell 50, thereby housing the second shell 80 inside the first shell 50. The foot portion 54a of the folded portion 54 is housed between the two columnar portions 73a of the shielding plate 73, almost filling the gap between the two columnar portions 73a. Therefore, a shield is formed between the joint portion of the first terminal 41 and the second terminal 71 for transmitting high-frequency signals and the joint portion of the first terminal 42 and the second terminal 72 for transmitting low-frequency signals.

[0132] Just Fig.13 In the connector assembly shown, the space between the first substrate 300 and the second substrate 400 and surrounded by the first ground pattern 310 and the second ground pattern 410 when viewed from a direction perpendicular to the two board surfaces of the first substrate 300 and the second substrate 400 (the first terminals 41, 42 and the second terminals 71, 72 are located in this space) is completely shielded from the outside without a gap by one or more of the first shell 50, the first solder 320, the second shell 80 and the second solder 420 when viewed from any direction parallel to the two board surfaces of the first substrate 300 and the second substrate 400. Therefore, the connector assembly has a high electromagnetic shielding performance.

[0133] A structure without the first notch 55 or the second notch 84, or a structure without the first notch 55 and the second notch 84 is also permitted.

[0134] <Supplement>

[0135] The present invention has been described with reference to the illustrated embodiments, but it will be appreciated by those skilled in the art that various changes can be made and the elements can be replaced with equivalents without departing from the scope of the present invention. Moreover, a large number of modifications can be added to make a specific system, device, or component thereof suitable for the teachings of the present invention without departing from the essence of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed for the implementation of the present invention, but includes all embodiments contained in the attached claims.

[0136] Moreover, the use of terms such as "first" and "second" does not indicate order and importance. Terms such as "first" and "second" are used to distinguish elements. The terms used in this specification are terms used to illustrate the implementation methods and are by no means intended to limit the present invention. The term "comprising" and its variations, when used in this specification and / or the appended claims, clarify the presence of the mentioned features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. If there are terms such as "and / or", all combinations of one or more of the associated listed elements are included. In the claims and the specification, unless otherwise stated, "connected", "joined", "coupled", "linked", or their synonyms, and all their word forms do not necessarily deny the existence of one or more intermediate elements between two that are, for example, "connected" or "coupled" or "linked" to each other. In the claims and the specification, if there is the term "arbitrary", unless otherwise stated, it should be understood to mean the same as the general quantifier. Terms with the same meaning. For example, the expression "with respect to any X" has the same meaning as "with respect to all X" or "with respect to each X".

[0137] Unless otherwise specified, all terms (including technical terms and scientific terms) used in this specification have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. Furthermore, terms such as terms defined in commonly used dictionaries should be interpreted as having the same meaning as those in the context of the relevant technology and the present disclosure, and will not be interpreted in an ideal or overly formal sense unless specifically defined.

[0138] In the specification of the present invention, it should be understood that a large number of technologies and steps are disclosed. Each of these has its own advantages, and each can also be used in combination with more than one or all of the technologies disclosed in other cases. Therefore, in order to avoid becoming complicated, all possible combinations of various technologies or steps are refrained from being described in this specification. However, the specification and claims should understand that such combinations are fully within the scope of the present invention and the claims.

[0139] The structures, materials, acts, and equivalents corresponding to all functional elements associated with the method or step in the following claims are intended to include the structure, material, or act for performing the function in combination with other claimed elements.

[0140] The embodiments of the present invention have been described above, but the present invention is not limited to these embodiments. Various changes and modifications are allowed within the scope of the gist of the present invention. The selected and described embodiments are used to explain the principles of the present invention and its practical application. The present invention is used as various embodiments with various changes or modifications, and various changes or modifications are determined according to the expected use. Such changes and modifications are all intended to be included in the scope of the present invention as defined in the attached claims, and should be given the same protection when interpreted according to the breadth of fairness, legality and justice.

Claims

1. A connector assembly, comprising a first connector and a second connector, wherein the first connector comprises a first insulator, a first terminal held by the first insulator, and a frame-shaped first shell, and is mounted on a first substrate, and the second connector comprises a second insulator, a second terminal held by the second insulator, and a frame-shaped second shell, and is mounted on a second substrate, wherein the first connector and the second connector are connected to each other, the first terminal and the second terminal are connected to each other, and the first shell and the second shell are connected to each other in a state where the first substrate and the second substrate are parallel to each other, wherein: A frame-shaped first ground pattern is formed on the first substrate, and the first shell and the first ground pattern are soldered to each other by a first solder along the entire circumference of the first ground pattern. A frame-shaped second ground pattern is formed on the second substrate, and the second shell and the second ground pattern are soldered to each other by a second solder along the entire circumference of the second ground pattern. Regarding the space between the first substrate and the second substrate and surrounded by the first ground pattern and the second ground pattern when viewed from a direction perpendicular to the first substrate and the second substrate, when viewed from any direction parallel to the first substrate and the second substrate, it is completely shielded from the outside without a gap by one or more of the first shell, the first solder, the second shell and the second solder.

2. The connector assembly according to claim 1, wherein: A first notch is present at a lower end of the first shell facing the first substrate, and the first notch is blocked by the first solder.

3. The connector assembly according to claim 1 or 2, wherein: A second notch is present at a lower end of the second shell facing the second substrate, and the second notch is blocked by the second solder.

4. A connector assembly, comprising a first connector and a second connector, wherein the first connector comprises a first insulator, a plurality of first terminals held by the first insulator, and a frame-shaped first shell, and is mounted on a first substrate, and the second connector comprises a second insulator, a plurality of second terminals held by the second insulator, a shielding plate held by the second insulator and located between the plurality of second terminals, and a frame-shaped second shell, and is mounted on a second substrate, wherein the first connector and the second connector are connected to each other, the plurality of first terminals and the plurality of second terminals are connected to each other, and the first shell and the second shell are connected to each other in a state where the first substrate and the second substrate are parallel to each other, wherein: The shielding plate has an elongated portion extending to the second shell, A second notch is formed at a lower end of the second shell facing the second substrate at positions corresponding to two ends of the extension portion. A frame-shaped second ground pattern is formed on the second substrate, and the second shell and the second ground pattern are soldered to each other by a second solder along the entire circumference of the second ground pattern. Both ends of the extension portion are located in the second notch, and are soldered to the second ground pattern together with the second shell through the second solder.

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