Connector and mating connector

Abstract

To provide a connector capable of reducing radiation noises, and a mating connector.SOLUTION: The connector includes a housing 2, multiple terminals 4, an outer shield 1, and an inner shield 3. The inner shield 3 is placed between two terminals 4 out of the multiple terminals 4. The outer shield 1 has a pair of first outer shields. Each of the pair of first outer shields has an outer periphery wall 111, a ceiling wall, and an inner periphery wall 131. The multiple terminals 4 are placed between the inner periphery walls 131 of the pair of the first outer shields when viewed along the vertical direction. The inner shield 3 overlaps with at least one terminal 4 out of the two terminals 4 when viewed along the front-back direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates generally to connectors and mating connectors, and more particularly to a connector with a shield and a mating connector that mates with the connector. [Background technology]

[0002] Patent Document 1 describes a connector and a shield cover that covers the connector. The connector electrically connects the first circuit board and the second circuit board by fitting a socket mounted on the first circuit board with a header mounted on the second circuit board. The shield cover engages with an engaging portion formed on either the first circuit board or the second circuit board. The connector has a plurality of contacts arranged in one direction. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-182808 Summary of the Invention [Problem to be solved by the invention]

[0004] In a connector such as that described in Patent Document 1, radiation noise may occur even when a shield cover is attached, and there is a need to suppress radiation noise.

[0005] An object of the present disclosure is to provide a connector and a mating connector that can reduce radiated noise. [Means for solving the problem]

[0006] A connector according to one aspect of the present disclosure connects with a mating connector having a plurality of mating terminals by moving upward in a vertical direction relative to the mating connector. The connector includes a housing, a plurality of terminals, an outer shield, and an inner shield. The plurality of terminals are held by the housing. The plurality of terminals are in electrical contact with the plurality of mating terminals. The outer shield is fixed to the housing. The inner shield is disposed between a first terminal and a second terminal of the plurality of terminals. The outer shield includes a pair of first outer shields facing each other in a left-right direction perpendicular to the vertical direction, and a second outer shield respectively connected to the pair of first outer shields. The housing includes a bottom wall, a wall portion protruding upward from the bottom wall, and a housing end portion in which the first terminal and the inner shield are arranged and which is formed at one end of the connector in a front-rear direction perpendicular to the up-down direction and the left-right direction; It has. The wall portion extends from the housing end portion in the front-rear direction and includes a housing wall portion on which the second terminal is disposed. The inner shield is formed continuously with the pair of first outer shields and is in contact with the wall portion. The outer shield surrounds the plurality of terminals. When viewed from the vertical direction, the connector has a gap formed between the pair of first outer shields and the housing wall portion that penetrates the connector in the vertical direction, and a board connection portion that is connected to a circuit board at the second terminal is arranged in the gap.

[0007] A mating connector according to one aspect of the present disclosure is connected to the connector and includes a mating housing, the plurality of mating terminals held by the mating housing, a mating outer shield fixed to the mating housing, and a mating inner shield disposed between a first mating terminal and a second mating terminal that contact the first terminal and the second terminal, respectively, of the plurality of mating terminals. [Effects of the Invention]

[0008] The present disclosure has the advantage of being able to reduce radiated noise. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is an exploded perspective view of a socket (connector) according to one embodiment. [Figure 2] FIG. 2 is a bottom view of the socket. [Figure 3] FIG. 3 is a plan view of the socket. [Figure 4] FIG. 4 is a perspective view of an outer shield of the socket. [Figure 5] FIG. 5 is an exploded perspective view of a header (connector) according to one embodiment. [Figure 6] FIG. 6 is a plan view of the header. [Figure 7] FIG. 7 is a bottom view of the header. [Figure 8] FIG. 8 is a perspective view of the outer shield of the header. [Figure 9] FIG. 9 is an end view showing the socket and header separated from each other, including the inner shields of the socket and header. [Figure 10] FIG. 10 is an end view showing the connection state of the socket and header of the same, including the inner shields of each of the socket and header. [Figure 11] FIG. 11 is an end view showing the above socket and header in a separated state, including two terminals of each of the above socket and header. [Figure 12] FIG. 12 shows the connection state of the socket and header of the same, and is an end view including two terminals of each of the socket and header of the same. [Figure 13] FIG. 13 is a schematic bottom view of the socket. [Figure 14] FIG. 14 is a graph showing noise levels of the socket and header of the same and the socket and header of a comparative example. [Figure 15] FIG. 15 is a bottom view of the socket according to the first modification. [Figure 16] FIG. 16 is a plan view of the socket. [Figure 17] FIG. 17 is a plan view of a header according to the first modification. [Figure 18] FIG. 18 is a bottom view of the header. [Figure 19] FIG. 19 is a perspective view of two terminals of each of the socket and the header in a separated state according to the second modification. [Figure 20] FIG. 20 is a perspective view of two terminals of the socket and the header in a connected state. [Figure 21] FIG. 21 is a schematic bottom view of a socket according to another modified example. DETAILED DESCRIPTION OF THE INVENTION

[0010] (1) Overview A connector and a connector device according to a first embodiment will be described below with reference to the drawings. However, the following embodiment is merely one of various embodiments of the present disclosure. The following embodiment can be modified in various ways depending on the design, etc., as long as the object of the present disclosure can be achieved. Furthermore, each figure described in the following embodiment is a schematic diagram, and the ratios of the sizes and thicknesses of the components in the figures do not necessarily reflect the actual dimensional ratios.

[0011] As shown in FIG. 11 , the connector device 100 includes a first connector (socket S1) and a second connector (header H1). In the following description, the first connector will also be referred to as the "socket S1," and the second connector will also be referred to as the "header H1." The socket S1 is connected to the header H1. At this time, terminals 4 of the socket S1 are electrically connected to terminals 8 of the header H1. From the perspective of the socket S1, the header H1 is a "mating connector" connected to the socket S1. Conversely, from the perspective of the header H1, the socket S1 is a "mating connector" connected to the header H1. In other words, the connector device 100 includes a connector (socket S1 or header H1) and a mating connector. From the perspective of the socket S1, terminals 8 of the header H1 are "mating terminals" electrically connected to terminals 4 of the socket S1. Conversely, from the perspective of the header H1, terminals 4 of the socket S1 are "mating terminals" electrically connected to terminals 8 of the header H1.

[0012] (1.1) Feature 1 As shown in Figures 1, 5, 9, and 13, the connector (socket S1 or header H1) of this embodiment includes an outer shield 1 (or 5), terminals 4 (or 8), a housing 2 (or 6), and an inner shield 3 (or 7). The terminals 4 (or 8) are surrounded by the outer shield 1 (or 5). The terminals 4 (or 8) are electrically connected to mating terminals of a mating connector. The housing 2 (or 6) is fixed relative to the outer shield 1 (or 5). The housing 2 (or 6) holds the terminals 4 (or 8). The inner shield 3 (or 7) is surrounded by the outer shield 1 (or 5). The inner shield 3 (or 7) includes two tip regions r1 (or r7). The two tip regions r1 (or r7) consist of a first tip region facing or directly coupled to the outer shield 1 (or 5) and a second tip region facing or directly coupled to the outer shield 1 (or 5). Among the multiple electrical closed loops described below, the longest loop length of the electrical closed loops LO1, LO2, and LO3 that do not surround other electrical closed loops is shorter than the wavelength corresponding to the maximum frequency of the transmission signal flowing through the terminal 4 (or 8). Each of the multiple electrical closed loops includes at least the outer shield 1 (or 5) and the inner shield 3 (or 7) of the outer shield 1 (or 5), the inner shield 3 (or 7), and two imaginary paths W7 and W8 (or W9 and W10) that connect the outer shield 1 (or 5) and the two tip regions r1 (or r7) by the shortest distance L1 (or L7), and surrounds the terminal 4 (or 8).

[0013] According to the above configuration, it is possible to reduce the possibility that resonance of the transmission signal occurs in the electrical closed loop.

[0014] In the present disclosure, the "maximum frequency of a transmission signal flowing through a terminal" refers to the maximum frequency of the carrier wave when transmitting a signal through a terminal, for example, when transmitting an RF signal, and to the frequency of a harmonic that is three to five times the clock frequency when transmitting a digital signal. The maximum frequency is, for example, a value determined by a connector manufacturer or the like according to the connector specifications, or a value determined by the connector standard or the like. The maximum frequency is, for example, listed in the specifications provided by the manufacturer as the maximum frequency value for which operation is guaranteed.

[0015] (1.2) Feature 2 As shown in Figures 1, 4, 5, 8, and 9, the connector (socket S1 or header H1) of this embodiment includes an outer shield 1 (or 5), terminals 4 (or 8), and a housing 2 (or 6). The outer shield 1 (or 5) has a cylindrical portion 10 (or 50). The cylindrical portion 10 (or 50) is open at both ends in a predetermined direction. The terminals 4 (or 8) are surrounded by the outer shield 1 (or 5). The terminals 4 (or 8) are electrically connected to mating terminals of a mating connector. The housing 2 (or 6) is fixed to the outer shield 1 (or 5). The housing 2 (or 6) holds the terminals 4 (or 8). The outer shield 1 (or 5) has a tip surface 102 (or 502), an outer peripheral surface 101 (or 501) of the tubular portion 10 (or 50), and an inner peripheral surface 103 (or 503) of the tubular portion 10 (or 50). The tip surface 102 (or 502) is provided along the inner edge of the tubular portion 10 (or 50) at one of the two ends of the tubular portion 10 (or 50), which will be described below. The one end is the end that faces the mating connector when the connector and the mating connector transition from a non-connected state to a connected state. At least one of the tip surface 102 (or 502), the outer peripheral surface 101 (or 501), and the inner peripheral surface 103 (or 503) is seamless around the entire circumferential direction of the tubular portion 10 (or 50).

[0016] In this disclosure, "seamless" refers to the absence of seams and discontinuities.

[0017] According to the above configuration, noise radiated from the outer shield 1 (or 5) can be reduced compared to when there are seams or gaps in the tip surface 102 (or 502), outer peripheral surface 101 (or 501), and inner peripheral surface 103 (or 503).

[0018] (1.3) Feature 3 As shown in FIGS. 1, 5, and 10, the connector (socket S1 or header H1) of this embodiment includes a plurality of terminals 4 (or 8). The plurality of terminals 4 (or 8) are electrically connected to a plurality of mating terminals of a mating connector. The connector further includes a housing 2 (or 6) and an inner shield 3 (or 7). The housing 2 (or 6) holds the plurality of terminals 4 (or 8). The connector and the mating connector are connected to each other by moving at least one of them toward the other in a first direction (in this embodiment, the up-and-down direction, described later). The plurality of terminals 4 (or 8) includes two terminals 4 (or 8). The two terminals 4 (or 8) are arranged on both sides of the inner shield 3 (or 7) in a second direction (in this embodiment, the front-rear direction, described later) perpendicular to the first direction. The inner shield 3 (or 7) includes a base 31 (or 71) and an extension 32 (or 72). The base 31 (or 71) has a length in a direction along a third direction (in this embodiment, a left-right direction, described later) that is perpendicular to both the first and second directions. The extension 32 (or 72) protrudes from the base 31 (or 71). The housing 2 (or 6) has a shield holding portion (accommodating portion 28 or 68). The shield holding portion holds the extension 32 (or 72).

[0019] According to the above configuration, the two terminals 4 (or 8) are arranged on either side of the inner shield 3 (or 7), thereby reducing the possibility of noise propagation between the two terminals 4 (or 8) compared to when the inner shield 3 (or 7) is not present. Furthermore, the extension 32 (or 72) of the connector is positioned by the shield holding portion (accommodating portion 28 or 68), thereby improving the accuracy of alignment between the extension 32 (or 72) of the connector and the mating connector. Furthermore, in this embodiment, the extension 32 (or 72) of the connector is electrically connected to the inner shield of the mating connector. The above configuration improves the accuracy of the electrical connection between the extension 32 (or 72) of the connector and the inner shield of the mating connector.

[0020] (1.4) Feature 4 As shown in Figures 1, 2, 5, and 6, the connector (socket S1 or header H1) of this embodiment includes a plurality of terminals 4 (or 8), a housing 2 (or 6), and an inner shield 3 (or 7). The plurality of terminals 4 (or 8) are electrically connected to a plurality of mating terminals of a mating connector. The housing 2 (or 6) holds the plurality of terminals 4 (or 8). The connector and the mating connector are connected to each other by moving at least one of them toward the other in a first direction. The plurality of terminals 4 (or 8) includes two terminals 4 (or 8). The two terminals 4 (or 8) are arranged on both sides of the inner shield 3 (or 7) in a second direction perpendicular to the first direction.

[0021] According to the above configuration, the possibility of noise propagation between the two terminals 4 (or 8) can be reduced compared to when the inner shield 3 (or 7) is not provided.

[0022] In the above configuration, the connector preferably further includes an outer shield 1 (or 5). The outer shield 1 (or 5) surrounds the multiple terminals 4 (or 8) and the inner shield 3 (or 7).

[0023] By providing the connector with the outer shield 1 (or 5), it is possible to reduce the possibility of noise propagation or radiation occurring between the inside and outside of the outer shield 1 (or 5).

[0024] (2) Details The connector (socket S1 and header H1) according to this embodiment will be described in detail below with reference to FIGS.

[0025] Unless otherwise specified, the direction in which the socket S1 and the header H1 are connected to or separated from each other will be referred to as the up-down direction (also referred to as the "first direction"), and the header H1 side will be referred to as the upper side when viewed from the socket S1. Furthermore, the longitudinal direction of the housing 2 of the socket S1, which is perpendicular to the up-down direction, will be referred to as the front-rear direction (also referred to as the "second direction"). Furthermore, the direction perpendicular to both the up-down direction and the front-rear direction, i.e., the short-edge direction of the housing 2, will be referred to as the left-right direction (also referred to as the "third direction"). In other words, the "up," "down," "front," "rear," "left," and "right" directions are defined as shown by the "up," "down," "front," "rear," "left," and "right" arrows in Figure 1 and elsewhere. However, these directions are not intended to define the usage direction of the socket S1 and the header H1. Furthermore, the arrows indicating the directions in the drawings are merely for explanatory purposes and have no substance.

[0026] As described above, the connector and the mating connector are connected to each other by moving at least one of them toward the other in the first direction. In this embodiment, the socket S1 is disposed below the header H1, and the socket S1 and the header H1 are connected to each other by at least one of the following: moving the socket S1 upward or moving the header H1 downward. Therefore, "the mating connector side when the connector and the mating connector transition from a non-connected state to a connected state" means the upper side when the socket S1 is the connector, and means the lower side when the header H1 is the connector.

[0027] The socket S1 and header H1 of this embodiment are attached to a circuit board 150 or 550 (see FIG. 10 ), such as a printed wiring board or a flexible printed wiring board. The socket S1 and header H1 are used to electrically connect multiple circuit boards mounted on a mobile terminal such as a smartphone. Of course, the socket S1 and header H1 are not intended to be limited in their intended use, and the socket S1 and header H1 may be used in electronic devices other than mobile terminals, such as camera modules. Furthermore, the socket S1 and header H1 are not limited in their intended use to electrically connect multiple circuit boards, but may also be used to electrically connect multiple components, such as between a circuit board and a display or between a circuit board and a battery.

[0028] The socket S1 and the header H1 may be provided in a state where they are not connected to the circuit board 150 or 550, respectively, or may be provided in a state where they are connected to the circuit board 150 or 550, respectively.

[0029] (2.1) Socket configuration First, the configuration of the socket S1 according to this embodiment will be described.

[0030] The socket S1 is two-fold symmetrical with respect to an axis passing through the center of the socket S1 and extending in the vertical direction. As shown in FIG. 1 , the socket S1 includes an outer shield 1, a housing 2, a plurality (two) of inner shields 3, and a plurality (eight) of terminals 4. Each of the outer shield 1 and the plurality of inner shields 3 is an electrostatic shield. The outer shield 1 surrounds the plurality of terminals 4. That is, the outer shield 1 is disposed outside the plurality of terminals 4. The plurality of inner shields 3 are disposed inside the outer shield 1. Furthermore, the plurality of inner shields 3 are disposed inside the housing 2.

[0031] A circuit board 150 (see FIG. 9) is mechanically and electrically connected to the socket S1. In this embodiment, the circuit board 150 is a double-sided board, but the circuit board 150 may also be a laminated board. The circuit board 150 has a base material 160 (see FIG. 9) and conductors 170 and 180 (see FIG. 9). The base material 160 is, for example, a semiconductor base material or a glass base material. The conductor 170 is a pattern of copper foil or the like provided on the surface of the base material 160. The conductor 170 is, for example, provided over substantially the entire surface of the base material 160 on which the socket S1 is connected. The conductor 180 is, for example, solder. The conductor 180 is provided in a predetermined region (land) of the conductor 170. The conductor 170 is electrically connected to the outer shield 1, the multiple inner shields 3, and the multiple terminals 4 via the conductor 180 (solder). The outer shield 1 and the multiple inner shields 3 are, for example, electrically connected to a ground provided on the circuit board 150. In FIG. 2, the area where the conductor 180 (solder) is provided is shown by a two-dot chain line.

[0032] (2.1.1) Socket housing The housing 2 is a resin molded body. The housing 2 has electrical insulation properties. As shown in FIGS. 1 to 3, the housing 2 has a bottom wall 21 and a peripheral wall 22. In a plan view, the bottom wall 21 is formed in a rectangular shape that is longer in the front-to-rear direction than in the left-to-right direction. The peripheral wall 22 protrudes upward from the entire periphery of one surface (top surface) in the thickness direction of the bottom wall 21. The housing 2 has a rectangular parallelepiped shape that is flat in the vertical direction, and has a recess 24 (see FIG. 3) surrounded by the peripheral wall 22 in the center of the top surface, which is one of the two surfaces in the vertical direction and faces the header H1.

[0033] The peripheral wall 22 has a cylindrical shape. The peripheral wall 22 surrounds the multiple terminals 4. The peripheral wall 22 is continuous around the entire circumferential direction of the peripheral wall 22. In other words, the peripheral wall 22 is formed without any gaps around the entire circumferential direction of the peripheral wall 22. As shown in FIG. 1 , the peripheral wall 22 includes two first peripheral walls 221 and two second peripheral walls 222. The two first peripheral walls 221 are portions of the peripheral wall 22 that extend approximately parallel to each other in the front-rear direction and face each other in the left-right direction with the recess 24 interposed therebetween. The two second peripheral walls 222 are portions of the peripheral wall 22 that extend approximately parallel to each other in the left-right direction and face each other in the front-rear direction with the recess 24 interposed therebetween. The two second peripheral walls 222 connect the ends of the two first peripheral walls 221 to each other. That is, the housing 2 has a shape in which one open surface (lower surface) of a peripheral wall 22 in the shape of a rectangular tube with a square cross section is closed by a bottom wall 21.

[0034] As shown in FIG. 3 , the housing 2 further includes a first wall portion 25, a second wall portion 26, and a third wall portion 27. The first wall portion 25, the second wall portion 26, and the third wall portion 27 protrude upward from the bottom wall 21. The first wall portion 25, the second wall portion 26, and the third wall portion 27 are disposed in the recess 24. That is, the first wall portion 25, the second wall portion 26, and the third wall portion 27 are surrounded by the peripheral wall 22. The first wall portion 25, the second wall portion 26, and the third wall portion 27 each have a rectangular parallelepiped shape. When viewed from the top-bottom direction, each of the first wall portion 25, the second wall portion 26, and the third wall portion 27 is longer in the front-to-back direction than in the left-to-right direction. That is, each of the first wall portion 25, the second wall portion 26, and the third wall portion 27 is a wall portion having a thickness in the third direction (left-to-right direction). The first wall portion 25, the second wall portion 26, and the third wall portion 27 are arranged in this order from left to right.

[0035] Each of the multiple wall portions (first wall portion 25, second wall portion 26, and third wall portion 27) has multiple (two) accommodating portions 28. An extension portion 32 of the inner shield 3 is accommodated in each of the multiple accommodating portions 28. Each of the multiple accommodating portions 28 is a through-hole provided in the wall portion. The accommodating portions 28 penetrate the wall portion in the up-down direction. The accommodating portions 28 also penetrate the bottom wall 21 in the up-down direction. Furthermore, when viewed from the up-down direction, the accommodating portions 28 provided in the first wall portion 25 and the third wall portion 27 are recesses recessed from the side surface (plane intersecting with the left-right direction) of the first wall portion 25 (third wall portion 27).

[0036] Each of the plurality of wall portions (first wall portion 25, second wall portion 26, and third wall portion 27) has a plurality of terminal holding portions 29. Each of the plurality of terminal holding portions 29 holds a terminal 4. Each of the plurality of terminal holding portions 29 is a through-hole provided in the wall portion. The wall portion penetrates in the vertical direction at the terminal holding portion 29. When viewed from the vertical direction, the terminal holding portion 29 is a recess recessed from the side surface of the wall portion (a surface intersecting the left-right direction). The plurality of terminal holding portions 29 correspond to each other in pairs, and two corresponding terminal holding portions 29 are lined up in the left-right direction. A portion of the bottom wall 21 between two corresponding terminal holding portions 29 forms a through-hole 211 into which the terminal 4 is inserted.

[0037] The terminals 4 are fixed to the housing 2 by press-fitting. That is, the terminals 4 are held in the housing 2 by being pressed into the housing 2 in one direction (upward). In this embodiment, eight terminals 4 are fixed to the housing 2. The eight terminals 4 are arranged in two rows. That is, of the eight terminals 4, four terminals 4 constitute the first row, and the remaining four terminals 4 constitute the second row. The four terminals 4 in each row are arranged in the front-to-rear direction. Each of the four terminals 4 constituting the first row is held by the terminal holding portion 29 of the first wall portion 25 and the terminal holding portion 29 of the second wall portion 26. Each of the four terminals 4 constituting the second row is held by the terminal holding portion 29 of the second wall portion 26 and the terminal holding portion 29 of the third wall portion 27. That is, each terminal 4 is disposed between two walls and supported from both sides by the two walls.

[0038] As shown in FIG. 2, the bottom wall 21 has a plurality of notches 212. The plurality of notches 212 are provided at positions facing the board connection portions 45 (described later) of the terminals 4 when viewed from the top-bottom direction. The bottom wall 21 also has a plurality (two) of accommodating grooves 213. Each accommodating groove 213 is a groove provided on the lower surface of the bottom wall 21. The accommodating groove 213 is longer in the left-right direction than in the front-to-back direction. The accommodating groove 213 accommodates the base portion 31 of the inner shield 3.

[0039] The peripheral wall 22 has a plurality (four) of insertion portions 223. The plurality (four) of insertion portions 223 are recesses recessed from the side surfaces (inner surfaces) of the two first peripheral walls 221 and the two second peripheral walls 222. As will be described later, a shield protrusion 14, which is part of the outer shield 1, is inserted into each of the plurality (four) of insertion portions 223.

[0040] (2.1.2) Outer shield of socket The outer shield 1 surrounds the multiple terminals 4 and the multiple inner shields 3. The outer shield 1 contains metal as a main material or as a material such as plating that forms the surface. Here, as an example, the outer shield 1 is formed mainly from metal. As shown in FIGS. 1 and 4, the outer shield 1 has a cylindrical portion 10 and multiple (four) shield protrusions 14. The cylindrical portion 10 includes an outer peripheral wall 11, a top wall 12, and an inner peripheral wall 13.

[0041] The outer peripheral wall 11 has a rectangular cylindrical shape with a square cross section. The outer peripheral wall 11 includes two first outer peripheral walls 111 and two second outer peripheral walls 112. The two first outer peripheral walls 111 are portions of the outer peripheral wall 11 that extend approximately parallel to the front-rear direction and face each other in the left-right direction. The two second outer peripheral walls 112 are portions of the outer peripheral wall 11 that extend approximately parallel to the left-right direction and face each other in the front-rear direction. The two second outer peripheral walls 112 connect the ends of the two first outer peripheral walls 111 to each other. The lower ends (lower surfaces) of the first outer peripheral wall 111 and the second outer peripheral wall 112 are parallel to a plane that includes the front-rear and left-right directions and are formed in approximately the same plane.

[0042] The top wall 12 has a rectangular frame shape when viewed from the top-bottom direction. The top wall 12 is connected to the upper end of the outer peripheral wall 11 and extends inward of the outer peripheral wall 11 when viewed from the top-bottom direction.

[0043] The inner peripheral wall 13 is provided inside the outer peripheral wall 11. The inner peripheral wall 13 has a rectangular cylindrical shape with a square cross section. The upper end of the outer peripheral wall 11 and the upper end of the inner peripheral wall 13 are connected by a top wall 12.

[0044] The inner circumferential wall 13 includes two first inner circumferential walls 131 and two second inner circumferential walls 132. The two first inner circumferential walls 131 are portions of the inner circumferential wall 13 that extend approximately parallel to each other in the front-rear direction and face each other in the left-right direction. The two second inner circumferential walls 132 are portions of the inner circumferential wall 13 that extend approximately parallel to each other in the left-right direction and face each other in the front-rear direction. The two second inner circumferential walls 132 connect the ends of the two first inner circumferential walls 131 to each other.

[0045] The outer peripheral wall 11, the top wall 12, and the inner peripheral wall 13 form a cylindrical portion 10 that is open at both ends in a first direction (vertical direction). The outer peripheral surface of the outer peripheral wall 11 corresponds to an outer peripheral surface 101 of the cylindrical portion 10. The inner peripheral surface of the inner peripheral wall 13 corresponds to an inner peripheral surface 103 of the cylindrical portion 10. The outer shield 1 also has a tip surface 102. The tip surface 102 is provided at one end (upper end) of both ends of the cylindrical portion 10 in the first direction that faces the mating connector when the connector (here, the socket S1) and the mating connector (here, the header H1) transition from a non-connected state to a connected state. The tip surface 102 is provided in an annular shape along the inner edge of the cylindrical portion 10. In this case, the upper surface of the top wall 12 corresponds to the tip surface 102. The inner edge of the tip surface 102 corresponds to the inner edge of the cylindrical portion 10 at the upper end of the cylindrical portion 10.

[0046] The boundary portion b1 between the tip surface 102 and the outer peripheral surface 101 is an arc-shaped surface when viewed from the front-rear direction (see FIG. 9). The boundary portion b2 between the tip surface 102 and the inner peripheral surface 103 is also an arc-shaped surface when viewed from the front-rear direction (see FIG. 9). Here, the tip surface 102 is defined as a region of the outer surface of the tubular portion 10 that forms an acute angle with the up-down direction of 0 degrees or more and less than 45 degrees. The outer surface at which the acute angle is 45 degrees or more is defined as the outer peripheral surface 101, and the inner surface at which the acute angle is 45 degrees or more is defined as the inner peripheral surface 103. The boundary portion b1 includes a portion of the tip surface 102 and a portion of the outer peripheral surface 101 over the entire circumferential direction of the tubular portion 10. The boundary portion b2 includes a portion of the tip surface 102 and a portion of the inner peripheral surface 103 over the entire circumferential direction of the tubular portion 10.

[0047] The multiple (four) shield protrusions 14 are provided corresponding to each of the two first inner circumferential walls 131 and the two second inner circumferential walls 132. Each shield protrusion 14 protrudes downward from the corresponding first inner circumferential wall 131 or second inner circumferential wall 132. The multiple (four) shield protrusions 14 correspond one-to-one to the multiple (four) insertion portions 223 (see FIG. 2 ) provided in the housing 2. Each shield protrusion 14 is inserted into the corresponding insertion portion 223.

[0048] The outer shield 1 is insert-molded into the housing 2. More specifically, the outer shield 1 is insert-molded into the housing 2 so that the peripheral wall 22 of the housing 2 fits between the outer peripheral wall 11 and the inner peripheral wall 13 of the outer shield 1.

[0049] The entire surface of the outer shield 1 is formed seamlessly. The outer shield 1 is formed, for example, by drawing, which forms the entire surface of the outer shield 1 seamlessly. In this embodiment, of the surfaces of the outer shield 1, at least the outer peripheral surface 101 and the inner peripheral surface 103 are seamless (i.e., there are no seams or gaps) over the entire circumferential direction of the tubular portion 10. Furthermore, in this embodiment, the tip surface 102 is seamless over the entire circumferential direction of the tubular portion 10.

[0050] For example, focusing on the outer peripheral surface 101, as shown in Fig. 4, the outer peripheral surface 101 includes an outer surface 1110 of each of the two first outer peripheral walls 111 and an outer surface 1120 of each of the two second outer peripheral walls 112. Each of the outer surfaces 1110 and 1120 is seamless. Furthermore, the outer surfaces 1110 and 1120, which are two surfaces whose normal directions are different from each other, are seamlessly connected. In this way, the outer peripheral surface 101 is seamless over the entire circumferential direction of the tubular portion 10.

[0051] 4, the inner circumferential surface 103 includes an outer surface 1310 of each of the two first inner circumferential walls 131 and an outer surface 1320 of each of the two second inner circumferential walls 132. Each of the outer surfaces 1310 and 1320 is seamless. Furthermore, the outer surfaces 1310 and 1320, which are two surfaces whose normal directions are different from each other, are seamlessly connected. In this way, the inner circumferential surface 103 is seamless over the entire circumferential direction of the tubular portion 10.

[0052] Furthermore, at least one of the boundary portion b1 between the tip surface 102 and the outer peripheral surface 101 and the boundary portion b2 between the tip surface 102 and the inner peripheral surface 103 (in this embodiment, both) is seamless around the entire circumference of the tubular portion 10.

[0053] For example, at the upper right of FIG. 4 (a corner of the outer shield 1), the outer surface 1110 of the first outer peripheral wall 111, the outer surface 1120 of the second outer peripheral wall 112, and the tip surface 102 are seamlessly connected. That is, the outer surface 1110, the outer surface 1120, and the tip surface 102, which are three surfaces whose normal directions are different from one another, are seamlessly connected. Also, at the right of FIG. 4, the outer surface 1110 and the tip surface 102, which are two surfaces whose normal directions are different from one another, are seamlessly connected. Furthermore, at the upper right of FIG. 4, the outer surface 1120 and the tip surface 102, which are two surfaces whose normal directions are different from one another, are seamlessly connected. In this way, the boundary portion b1 is seamless throughout the entire circumferential direction of the tubular portion 10.

[0054] Also, for example, at the lower left of FIG. 4 (a corner portion of the outer shield 1), the outer surface 1310 of the first inner circumferential wall 131, the outer surface 1320 of the second inner circumferential wall 132, and the tip surface 102 are seamlessly connected. That is, the outer surface 1310, the outer surface 1320, and the tip surface 102, which are three surfaces whose normal directions are different from one another, are seamlessly connected. Also, at the left of FIG. 4, the outer surface 1310 and the tip surface 102, which are two surfaces whose normal directions are different from one another, are seamlessly connected. Furthermore, at the bottom of FIG. 4, the outer surface 1320 and the tip surface 102, which are two surfaces whose normal directions are different from one another, are seamlessly connected. In this way, the boundary portion b2 is seamless throughout the entire circumferential direction of the tubular portion 10.

[0055] (2.1.3) Inner shield of socket In this embodiment, the two inner shields 3 have the same shape. The inner shields 3 contain metal as the main material or as a material such as plating that forms the surface. Here, as an example, the inner shield 3 is formed using metal as the main material. As shown in FIGS. 1 and 9, the inner shield 3 has a base 31 and multiple (three) extensions 32 (two first extensions 33 and one second extension 34).

[0056] The base 31 has a length in the third direction (left-right direction). The base 31 is shaped like a plate. When viewed in the thickness direction (front-rear direction) of the base 31, the base 31 is longer in the left-right direction than in the up-down direction. The base 31 is accommodated in an accommodating groove 213 provided in the bottom wall 21 of the housing 2.

[0057] As shown in FIG. 9, the multiple extensions 32 protrude upward from the base 31. That is, the multiple extensions 32 protrude along the first direction (vertical direction) toward the mating connector when the connector (here, the socket S1) and the mating connector (here, the header H1) transition from a non-connected state to a connected state. Each extension 32 is plate-shaped. When viewed in the thickness direction (front-rear direction) of each extension 32, each extension 32 is longer in the vertical direction than in the horizontal direction. Note that the thickness direction of each extension 32 may also be the horizontal direction.

[0058] The first extension 33 includes an extension main body 331 and a contact portion 332. The extension main body 331 is a portion that protrudes from the base 31. The contact portion 332 is a portion that comes into contact with the inner shield 7 of the mating connector (header H1). The contact portion 332 protrudes from the extension main body 331. The contact portion 332 is provided on a surface (here, the left or right surface) of the first extension 33 (extension main body 331) that is along the length direction of the first extension 33. In other words, the contact portion 332 protrudes in the left-right direction from the extension main body 331.

[0059] The contact portions 332 of the two first extension portions 33 face each other in the left-right direction. Each contact portion 332 comes into contact with the contact portion 720 of the inner shield 7 of the header H1 (see FIG. 10 ). This electrically connects each of the two inner shields 3 to the corresponding one of the two inner shields 7 of the header H1. Specifically, the two extension portions 72 of the inner shield 7 are inserted between the two first extension portions 33 of the inner shield 3. At this time, the elasticity of the two extension portions 72 and the two first extension portions 33 presses the two extension portions 72 against the two first extension portions 33.

[0060] The second extension 34 includes an extension main body 341 and a plurality (two) of holding protrusions 342. The extension main body 341 is a portion that protrudes from the base 31. The two holding protrusions 342 protrude from the extension main body 341. The two holding protrusions 342 are provided on the left and right ends of the extension main body 341. That is, one of the two holding protrusions 342 protrudes leftward from the extension main body 341, and the other protrudes rightward from the extension main body 341.

[0061] The socket S1 has three extensions 32 on each of the two inner shields 3. That is, the socket S1 has a total of six extensions 32. The six accommodating portions 28 (see FIG. 3 ) provided in the housing 2 correspond one-to-one to the six extensions 32. Each extension 32 is accommodated in the corresponding accommodating portion 28. More specifically, the first extension 33 is accommodated in the accommodating portion 28 of the first wall portion 25 and the third wall portion 27, and the second extension 34 is accommodated in the accommodating portion 28 of the second wall portion 26. The width of the second extension 34, including the two retaining protrusions 342, in the left-right direction is slightly larger than the width of the accommodating portion 28 in the left-right direction. The inner shield 3 is fixed to the housing 2 by press-fitting. That is, the inner shield 3 is held in the housing 2 by being pressed in one direction (upward) into the housing 2. The inner shield 3 is held by the housing 2 with the two holding projections 342 sandwiched between the inner surface of the accommodating portion 28 .

[0062] Here, the accommodation space of each of the two first extensions 33 in the shield holding portion (accommodating portion 28) is larger than that of each of the two first extensions 33. In other words, there is some play in the alignment between each of the two first extensions 33 and the inner surface of the accommodating portion 28. The function of holding the inner shield 3 in the housing 2 is achieved by at least the second extension 34. In other words, the inner shield 3 is held in the housing 2 by press-fitting at least the second extension 34 into the accommodating portion 28. In short, the multiple extensions 32 include the first extension 33 including an abutment portion 332 that contacts the inner shield 7 of the mating connector (here, the header H1), and the second extension 34 that is held in the shield holding portion (accommodating portion 28). However, the second extension 34 may also include an abutment portion that contacts the inner shield 7 of the mating connector (here, the header H1).

[0063] 9, the base 31 of the inner shield 3 is located at the lower end of the socket S1. The inner shield 3 is surrounded by the outer shield 1. The inner shield 3 includes two tip regions r1 facing the outer shield 1. The two tip regions r1 are provided at both ends (left and right ends) of the base 31 in the longitudinal direction.

[0064] Here, the outer shield 1 has a first end e1 and a second end e2. The first end e1 is the end (upper end) that faces the mating connector when the connector (here, socket S1) and the mating connector (here, header H1) transition from a non-connected state to a connected state. The second end e2 is the end (lower end) opposite the first end e1. Note that here, the second end e2 is defined as a region that extends over the entire circumferential circumference of the tubular portion 10. The outer shield 1 faces the two tip regions r1 in a region including the second end e2.

[0065] The outer shield 1 faces at least one of the two tip regions r1 across a gap g1 in a region including the second end e2. As shown in FIG. 9 , conductors 170 and 180 of the circuit board 150 are electrically connected to the outer shield 1. The conductors 170 and 180 are provided so as to bridge the second end e2 of the outer shield 1 across the two tip regions r1 of the inner shield 3, respectively. That is, the outer shield 1 is electrically connected to the inner shield 3 via the conductors 170 and 180. On the other hand, in a state in which the circuit board 150 is not present, the outer shield 1 is electrically insulated from at least one of the two tip regions r1 (both in this embodiment) via the gap g1. The shortest distance L1 between the outer shield 1 and at least one of the two tip regions r1 across the gap g1 is 0.01 mm or more and 0.1 mm or less.

[0066] The inner shield 3 has a first end e3 and a second end e4. The first end e3 is the end (upper end) that faces the mating connector when the connector (here, the socket S1) and the mating connector (here, the header H1) transition from a non-connected state to a connected state. The second end e4 is the end (lower end) opposite the first end e3. The inner shield 3 has a connection surface 310 (lower surface) at the second end e4 that is electrically connected to the circuit board 150. The connection surface 310 is flat and continuous across the two tip regions r1. More specifically, the connection surface 310 is a rectangular plane that connects the two tip regions r1.

[0067] (2.1.4) Socket terminals (2.1.4.1) Placement 2 and 3, the plurality (eight) of terminals 4 includes a plurality (six) of low-frequency terminals 4P and a plurality (two) of high-frequency terminals 4T. Each terminal 4 is inserted into a through-hole 211 in the bottom wall 21 of the housing 2 and held by a terminal holding portion 29.

[0068] The two high-frequency terminals 4T are arranged on either side of each other with at least one inner shield 3 sandwiched therebetween. In other words, at least one inner shield 3 is arranged between the two high-frequency terminals 4T. This reduces the possibility of noise propagation between the two high-frequency terminals 4T.

[0069] More specifically, the two high-frequency terminals 4T are arranged on both sides of at least one inner shield 3 in the second direction (front-rear direction), i.e., on the front and rear sides of the inner shield 3. Focusing on one of the two inner shields 3 in Fig. 2, one high-frequency terminal 4T is arranged in front of the inner shield 3, and the other high-frequency terminal 4T is arranged behind the inner shield 3. Furthermore, two inner shields 3 are arranged between the two high-frequency terminals 4T. The length direction (left-right direction) of the inner shield 3 is a direction that intersects with the direction in which the two high-frequency terminals 4T are lined up (approximately the front-rear direction).

[0070] The six low-frequency terminals 4P are arranged between two inner shields 3. That is, the space in which one of the two high-frequency terminals 4T is arranged and the space in which the six low-frequency terminals 4P are arranged are separated by one of the two inner shields 3. Furthermore, the space in which the other of the two high-frequency terminals 4T is arranged and the space in which the six low-frequency terminals 4P are arranged are separated by the other of the two inner shields 3. The six low-frequency terminals 4P are arranged in two rows of three in the front-to-rear direction.

[0071] The three low-frequency terminals 4P in each row are arranged at equal pitches in the front-to-rear direction. Furthermore, a high-frequency terminal 4T is arranged in front of or behind the last low-frequency terminal 4P in each row. The pitch between the low-frequency terminal 4P and the high-frequency terminal 4T is an integral multiple (twice in this embodiment) of the pitch between the three low-frequency terminals 4P. This arrangement facilitates the process of incorporating the six low-frequency terminals 4P and two high-frequency terminals 4T into the housing 2 all at once.

[0072] In this embodiment, the pitch between the low-frequency terminal 4P and the high-frequency terminal 4T is longer than the pitch between the three low-frequency terminals 4P, which ensures a space for arranging the inner shield 3 between the low-frequency terminal 4P and the high-frequency terminal 4T.

[0073] A space in which a plurality of low-frequency terminals 4P are arranged is provided between the two high-frequency terminals 4T, ensuring a sufficient distance between the two high-frequency terminals 4T. This further reduces the possibility of noise propagation between the two high-frequency terminals 4T. In addition, the two high-frequency terminals 4T are arranged at diagonal positions inside the peripheral wall 22 of the housing 2. This further increases the distance between the two high-frequency terminals 4T.

[0074] The two high-frequency terminals 4T are electrically connected to a signal line patterned with conductors 170 on the circuit board 150. At least one of the six low-frequency terminals 4P is electrically connected to a power supply line patterned with conductors 170 on the circuit board 150. The two high-frequency terminals 4T transmit signals with higher frequencies than the six low-frequency terminals 4P. The frequency of the signals transmitted through the two high-frequency terminals 4T is, for example, approximately 5 to 50 GHz.

[0075] Furthermore, at least one of the six low-frequency terminals 4P may be electrically connected to the inner shield 3. As a result, at least one of the six low-frequency terminals 4P has the same potential as the inner shield 3. Specifically, the potential of at least one of the six low-frequency terminals 4P and the potential of the inner shield 3 are set to ground potential. At least one of the six low-frequency terminals 4P may be electrically connected to the inner shield 3 via, for example, the conductors 170, 180 of the circuit board 150. Note that at least one of the six low-frequency terminals 4P may also be electrically connected to the inner shield 3 without using the circuit board 150.

[0076] (2.1.4.2) Shape The terminals 4 have the same shape. Each terminal 4 is formed, for example, by punching and bending a metal plate. As shown in Fig. 11, each terminal 4 has a (first) contact portion 41, a base portion 42, a connecting portion 43, a protruding portion 44, a board connecting portion 45, and a (second) contact portion 46.

[0077] The board connection portion 45 is electrically connected to, for example, the conductor 180 (solder) of the circuit board 150. That is, the board connection portion 45 is joined to the circuit board 150 by a joining means such as soldering. This electrically and mechanically connects the circuit board 150 and the terminal 4. As shown in FIG. 2, the board connection portion 45 is surrounded by the outer shield 1 when viewed from a first direction (the vertical direction). Furthermore, at least a portion of the board connection portion 45 and at least a portion of the outer shield 1 exist on a plane perpendicular to the vertical direction.

[0078] The connecting portion 43 is formed in a U-shape that is open downward. The connecting portion 43 connects the upper end of the base portion 42 to the upper end of the contact portion 41. The lower end of the base portion 42 is connected to the board connection portion 45.

[0079] The protruding portion 44 is formed in a U-shape that is open upward. The protruding portion 44 connects the lower end of the contact portion 41 to the contact portion 46. The contact portion 41, which is the first contact portion, and the contact portion 46, which is the second contact portion, face each other in the left-right direction. In this embodiment, at least the connecting portion 43 and the protruding portion 44 of the terminal 4 are elastic.

[0080] When the terminal 4 is held in the housing 2, at least a portion of the contact portion 41 and the contact portion 46 is exposed when viewed from above. The contact portion 41 and the contact portion 46 come into contact with corresponding terminals 8 among a plurality of terminals 8 (mating terminals) of the header H1 (mating connector) and are electrically connected to the terminals 8 (see FIG. 12 ). Specifically, the contact portion 81 and the contact portion 84 of the terminal 8 are inserted between the contact portion 41 and the contact portion 46. At this time, the elasticity of the protrusion 44 presses the contact portion 41 and the contact portion 46 against the terminal 8.

[0081] The terminal 4 further includes a force-sensing portion 47. The force-sensing portion 47 generates a clicking sensation when the terminal 4 contacts the terminal 8 (the mating terminal). The force-sensing portion 47 is a protrusion protruding from the contact portion 41. The clicking sensation occurs when the force-sensing portion 85 (protrusion) of the terminal 8 overcomes the force-sensing portion 47. Specifically, when the force-sensing portion 85 moves downward and overcomes the force-sensing portion 47, the magnitude of the force acting between the terminal 4 and the terminal 8 decreases. Therefore, the worker connecting the terminals 4 and 8 perceives this decrease in the magnitude of the force as a clicking sensation. The worker can know the progress of the connection between the socket S1 and the header H1 by perceiving the clicking sensation. Note that the connection between the socket S1 and the header H1, and the resulting connection between the terminals 4 and 8, do not necessarily have to be performed by hand but may be performed by machine.

[0082] When the terminals 4 and 8 are connected, the contact portion 46 is inserted into the recess 840 of the terminal 8. When the terminals 4 and 8 transition from a connected state to a disconnected state, a certain amount of force is required to cause the force sense portion 85 to move upward and overcome the force sense portion 47, and to cause the contact portion 46 to escape from the recess 840. In this way, the pair of the force sense portion 85 and the force sense portion 47, and the pair of the contact portion 46 and the recess 840, respectively, constitute locking mechanisms that can maintain the connected state between the socket S1 and the header H1.

[0083] As shown in FIG. 3, the abutting portion 332 of the inner shield 3 and the contact portion 41 of at least one of the terminals 4 are aligned in the second direction (front-rear direction).

[0084] (2.1.5) Socket-side circuit board The socket S1 is electrically connected to a conductor 180 (solder) of the circuit board 150. In FIG. 2, the area on the underside of the socket S1 where the conductor 180 is provided is indicated by a two-dot chain line. A portion of the conductor 180 is provided on the underside of the outer shield 1 along the circumferential direction of the outer shield 1. Here, the conductors 180 are provided on the underside of the outer shield 1 in each of a plurality of areas spaced apart in the circumferential direction of the outer shield 1. However, the conductor 180 may be provided on the underside of the outer shield 1 continuously around the entire circumferential circumference of the outer shield 1. In other words, the outer shield 1 may be in contact with the conductor 180 continuously around the entire circumferential circumference.

[0085] Furthermore, a portion of the conductor 180 is provided so as to bridge between the outer shield 1 and each inner shield 3. Furthermore, a portion of the conductor 180 is provided on the lower surface of each inner shield 3 along the longitudinal direction of the inner shield 3. Here, the conductors 180 are provided on each of multiple (three) regions on the lower surface of each inner shield 3 that are spaced apart in the longitudinal direction of the inner shield 3. However, the conductors 180 may also be provided on the lower surface of each inner shield 3 continuously over the entire longitudinal direction of the inner shield 3. In other words, the inner shield 3 may be in contact with the conductors 180 continuously over the entire longitudinal direction.

[0086] A portion of the conductor 180 is thus electrically connected to the outer shield 1 and each inner shield 3, and is also electrically connected to one of the conductors 170 of the circuit board 150 that is at ground potential. That is, the potential of the outer shield 1 and each inner shield 3 is at ground potential. It is preferable that the majority of the surface of the substrate 160 on the side to which the socket S1 is connected be occupied by the conductor 170 at ground potential. In other words, it is preferable that a so-called ground plane be provided on the circuit board 150. This improves the shielding effect.

[0087] Furthermore, a portion of the conductor 180 is electrically connected to the board connection portion 45 of the terminal 4. The terminal 4 is electrically connected to an appropriate circuit or the like via the conductor 170 (wiring pattern) of the circuit board 150. For example, the multiple high-frequency terminals 4T are electrically connected to a circuit that processes signals. Furthermore, for example, at least some of the multiple low-frequency terminals 4P are electrically connected to wiring that transmits signals with a lower frequency than the signals transmitted by the high-frequency terminal 4T, or to a power supply circuit or ground.

[0088] (2.1.6) Socket Electrical Closed Loop FIG. 13 shows a schematic arrangement of the outer shield 1, the multiple (two) inner shields 3, and the multiple (eight) terminals 4 as viewed from below.

[0089] In the socket S1, at least three electrical closed loops LO1, LO2, and LO3 are formed. Each of the electrical closed loops LO1, LO2, and LO3 includes at least the outer shield 1 and one or two of the two inner shields 3 among the outer shield 1, two inner shields 3, and imaginary paths W7, W8, W9, and W10. That is, each of the electrical closed loops LO1, LO2, and LO3 necessarily includes a path completed within the outer shield 1 and a path completed within one inner shield 3 or each of the two inner shields 3, and optionally includes at least one of the imaginary paths W7, W8, W9, and W10. The two imaginary paths W7 and W8 (or W9 and W10) connect the outer shield 1 and the two tip regions r1 of the inner shield 3, respectively, over the shortest distance L1. Each of the electrical closed loops LO1, LO2, and LO3 surrounds at least one terminal 4. Each of the electrical closed loops LO1, LO2, and LO3 does not surround the other electrical closed loops. The other electrical closed loops include at least the outer shield 1 and one or two inner shields 3 among the outer shield 1, two inner shields 3, and virtual paths W7, W8, W9, and W10. The electrical closed loop LO1 does not surround the electrical closed loops LO2 and LO3, the electrical closed loop LO2 does not surround the electrical closed loops LO1 and LO3, and the electrical closed loop LO3 does not surround the electrical closed loops LO1 and LO2.

[0090] In this disclosure, when one electrical closed loop (hereinafter referred to as a first closed loop) is said to surround another electrical closed loop (hereinafter referred to as a second closed loop), a portion of the first closed loop and a portion of the second closed loop may overlap.

[0091] The longest loop length among the electrical closed loops LO1, LO2, and LO3 is shorter than the wavelength corresponding to the maximum frequency of the transmission signal flowing through the terminal 4. This reduces the possibility of resonance of the transmission signal. Here, the maximum frequency is, more specifically, the maximum frequency of the transmission signal flowing through the high-frequency terminal 4T. That is, in this embodiment, the maximum frequency is determined according to the specifications of the high-frequency terminal 4T.

[0092] Incidentally, if not limited to a plane perpendicular to the vertical direction (a plane parallel to the paper surface of Figure 13), electrical closed loops other than the electrical closed loops LO1, LO2, and LO3 are also formed in the socket S1, but since the loop length of all of these is shorter than that of the electrical closed loops LO1, LO2, and LO3, they will not be discussed here.

[0093] Next, the paths W1 to W10 that constitute the electrical closed loops LO1, LO2, and LO3 will be described.

[0094] Two inner shields 3 are arranged side by side in the front and rear of the socket S1. The left side surface of the outer shield 1 has a region r2 facing the left tip region r1 of the front inner shield 3 and a region r3 facing the left tip region r1 of the rear inner shield 3. The right side surface of the outer shield 1 has a region r4 facing the right tip region r1 of the front inner shield 3 and a region r5 facing the right tip region r1 of the rear inner shield 3.

[0095] Path W1 is included in the front region of the outer shield 1, and connects regions r4 and r2 along the outer shield 1. Path W2 runs along the left side surface of the outer shield 1, connecting regions r2 and r3.

[0096] Path W3 is included in the rear region of the outer shield 1, and connects regions r3 and r5 along the outer shield 1. Path W4 runs along the right side surface of the outer shield 1, connecting regions r5 and r4.

[0097] The path W5 connects the two tip regions r1 of the upper inner shield 3. The path W6 connects the two tip regions r1 of the lower inner shield 3.

[0098] Path W7 connects region r2 of the outer shield 1 and the left tip region r1 of the front inner shield 3 by the shortest distance L1. Path W8 connects region r4 of the outer shield 1 and the right tip region r1 of the front inner shield 3 by the shortest distance L1.

[0099] Route W9 connects region r3 of the outer shield 1 and the left tip region r1 of the rear inner shield 3 by the shortest distance L1. Route W10 connects region r5 of the outer shield 1 and the right tip region r1 of the rear inner shield 3 by the shortest distance L1.

[0100] The electrical closed loop LO1 is formed by paths W1, W7, W5, and W8. The electrical closed loop LO2 is formed by paths W2, W9, W6, W10, W4, W8, W5, and W7. The electrical closed loop LO3 is formed by paths W3, W10, W6, and W9.

[0101] As described above, in this disclosure, when it is said that a certain electrical closed loop (first closed loop) surrounds another electrical closed loop (second closed loop), a part of the first closed loop and a part of the second closed loop may overlap. For example, in Fig. 13, the first closed loop formed by paths W4, W1, W2, W9, W6, and W10 and the second closed loop, electrical closed loop LO1, overlap at path W1, and the first closed loop surrounds the second closed loop.

[0102] In this embodiment, the loop length of the electrical closed loop LO2 is the longest among the electrical closed loops LO1, LO2, and LO3. An example of the longest loop length is about 6 to 7 mm.

[0103] If the maximum frequency fMAX of the transmission signal flowing through terminal 4 is 10 GHz (1010 Hz), the wavelength λ corresponding to the maximum frequency fMAX is λ = 3 × 108 / fMAX = 0.03 [m] = 30 [mm]. If the longest loop length is 6 to 7 [mm], the longest loop length satisfies the condition that it is shorter than the wavelength λ corresponding to the maximum frequency fMAX.

[0104] Furthermore, the outer shield 1 forms an electrical closed loop LO4 surrounding the terminal 4 without relying on the inner shield 3. The electrical closed loop LO4 is formed by paths W1, W2, W3, and W4. That is, of the outer shield 1, a cylindrical portion 10 (see FIG. 4) that is continuous in the circumferential direction forms the electrical closed loop LO4. The electrical closed loop LO4 surrounds the electrical closed loops LO1, LO2, and LO3.

[0105] Here, the outer shield 1 is formed so as to have no gaps in the circumferential direction of the cylindrical portion 10, and therefore constitutes an electrical closed loop LO4 by itself. However, the outer shield 1 may also constitute the electrical closed loop LO4 together with the conductors 170 and / or 180 of the circuit board 150. In other words, when a gap is formed in the outer shield 1, a path connecting both ends of the gap may be formed by the conductors 170 and / or 180, and the electrical closed loop LO4 may include this path. Here, the conductors 170 and / or 180 do not need to be included in the configuration of the socket S1.

[0106] (2.2) Header structure Next, the configuration of the header H1 according to this embodiment will be described. Of the configuration of the header H1, the description of the configuration that is the same as the configuration of the socket S1 will be omitted as appropriate.

[0107] The header H1 is two-fold symmetrical with respect to an axis passing through the center of the header H1 and extending in the vertical direction. As shown in FIG. 5, the header H1 includes an outer shield 5, a housing 6, a plurality (two) of inner shields 7, and a plurality (eight) of terminals 8. The outer shield 5 and each of the plurality of inner shields 7 are electrostatic shields. The outer shield 5 surrounds the plurality of terminals 8. That is, the outer shield 5 is disposed outside the plurality of terminals 8. The plurality of inner shields 7 are disposed inside the outer shield 5. Furthermore, the plurality of inner shields 7 are disposed inside the housing 6.

[0108] A circuit board 550 (see FIG. 9) is mechanically and electrically connected to the header H1. The circuit board 550 has a base material 560 (see FIG. 9) and conductors 570 and 580 (see FIG. 9) that are configured similarly to the base material 160 and conductors 170 and 180 of the circuit board 150 connected to the socket S1. The conductor 570 is provided, for example, on substantially the entire surface of the base material 560 on the side to which the header H1 is connected. In addition, in FIG. 6, the region where the conductor 580 (solder) is provided is shown by a two-dot chain line.

[0109] (2.2.1) Header housing The housing 6 is a resin molded body. The housing 6 is electrically insulating. The housing 6 has a bottom wall 61 and a peripheral wall 62. In a plan view, the bottom wall 61 is formed in a rectangular shape that is longer in the front-to-rear direction than in the left-to-right direction. The peripheral wall 62 protrudes downward from the outer periphery of one surface (lower surface) in the thickness direction of the bottom wall 61. The left and right sides of the housing 6 have multiple notches 601 (two on the left side and two on the right side in FIG. 5) that penetrate the bottom wall 61 and the peripheral wall 62 in the up-down direction. The multiple notches 601 are provided at positions facing the board connection portions 83 of the terminals 8 when viewed from the up-down direction (see FIG. 6).

[0110] As shown in FIG. 7, the housing 6 further has two wall portions 65. Each wall portion 65 protrudes downward from the bottom wall 61. The wall portion 65 is shaped like a rectangular parallelepiped with a curved lower surface resembling a cylindrical side surface (see FIG. 10). The front and rear ends of the wall portion 65 are connected to the peripheral wall 62. When viewed from the top-bottom direction, the wall portion 65 is longer in the front-to-rear direction than in the left-to-right direction. In other words, the wall portion 65 has a thickness in the direction along the third direction (left-to-right direction). The two wall portions 65 are lined up on the left and right.

[0111] Each wall portion 65 has a plurality (two) of accommodating portions 68. An extension portion 72 of the inner shield 7 is accommodated in each of the plurality of accommodating portions 68. Each of the plurality of accommodating portions 68 is a through-hole provided in the wall portion 65. The accommodating portions 68 penetrate the wall portion 65 in the up-down direction. The accommodating portions 68 also penetrate the bottom wall 61 in the up-down direction. When viewed from the up-down direction, the accommodating portions 68 provided in the wall portion 65 are recesses recessed from the side surface of the wall portion 65 (a surface intersecting the left-right direction).

[0112] Each wall portion 65 has a plurality of (four) terminal holding portions 69. Each terminal holding portion 69 holds one terminal 8. Each of the plurality of terminal holding portions 69 is a recess provided in the wall portion 65.

[0113] A plurality of terminals 8 are insert-molded into the housing 6. In this embodiment, eight terminals 8 are fixed to the housing 6. The eight terminals 8 of the header H1 correspond one-to-one to the eight terminals 4 of the socket S1. Each terminal 8 is positioned so as to be connected to the corresponding terminal 4.

[0114] As shown in Figures 5 and 6, the bottom wall 61 has multiple (two) storage grooves 613. Each storage groove 613 is a groove provided on the upper surface of the bottom wall 61. The storage groove 613 is longer in the left-right direction than in the front-rear direction. The storage groove 613 stores the base 71 of the inner shield 7.

[0115] 7, the peripheral wall 62 has a plurality (two) of insertion portions 623. Each of the plurality (two) of insertion portions 623 is a recess provided in the bottom surface (lower surface) of the peripheral wall 62. As will be described later, a shield protrusion 54, which is part of the outer shield 5, is inserted into each of the plurality (two) of insertion portions 623.

[0116] (2.2.2) Outer shield of header The outer shield 5 surrounds the multiple terminals 8 and the multiple inner shields 7. The outer shield 5 contains metal as a main material or as a material such as plating that forms the surface. Here, as an example, the outer shield 5 is formed using metal as a main material. As shown in FIGS. 5 and 8, the outer shield 5 has an outer peripheral wall 51, multiple (four) top walls 52, multiple (two) shield protrusions 54, and a bottom wall 55.

[0117] The outer peripheral wall 51 has a rectangular cylindrical shape with a square cross section. The outer peripheral wall 51 includes two first outer peripheral walls 511 and two second outer peripheral walls 512. The two first outer peripheral walls 511 are portions of the outer peripheral wall 51 that extend approximately parallel to each other in the front-rear direction and face each other in the left-right direction. The two second outer peripheral walls 512 are portions of the outer peripheral wall 51 that extend approximately parallel to each other in the left-right direction and face each other in the front-rear direction. The two second outer peripheral walls 512 connect the ends of the two first outer peripheral walls 511 to each other.

[0118] The outer shield 5 further has a plurality of protrusions 56 protruding from the outer peripheral wall 51. The plurality of protrusions 56 function as contact portions that come into contact with the outer shield 1 of the mating connector (here, socket S1). The outer peripheral wall 51, the top wall 52, and the plurality of protrusions 56 form a cylindrical portion 50 that is open at both ends in the first direction (up-down direction). That is, the cylindrical portion 50 includes the outer peripheral wall 51, the top wall 52, and the plurality of protrusions 56. The outer peripheral surface 501 of the cylindrical portion 50 includes a portion of the outer peripheral surface of the outer peripheral wall 51 and the surfaces of the plurality of protrusions 56.

[0119] The outer shield 5 of the connector (here, the header H1) has a side surface (outer peripheral surface 501) along a first direction (vertical direction). The side surface (outer peripheral surface 501) has a convex structure. That is, a structure consisting of a plurality of protrusions 56 corresponds to the convex structure. The outer shield 5 of the connector (here, the header H1) contacts the outer shield 1 of the mating connector (here, the socket S1) at the convex structure (the plurality of protrusions 56). More specifically, the plurality of protrusions 56 contact the inner peripheral surface 103 of the tubular portion 10 of the outer shield 1 (see FIG. 10 ).

[0120] Compared to a case where the outer circumferential surface 501 is flat without the multiple protrusions 56, it is possible to press the outer shield 1 into the outer shield 5 even if there is some variation in the dimensions of the outer shields 1, 5. This reduces the possibility of poor contact, such as the outer shields 1, 5 contacting each other on one side (left and right or front and back) and being separated on the other side.

[0121] Three protrusions 56 are provided on each of the two first outer peripheral walls 511. One protrusion 56 is provided on each of the two second outer peripheral walls 512. The multiple protrusions 56 are spaced apart in the circumferential direction of the cylindrical portion 50. The maximum values ​​of creepage distances L2 and L3 between the multiple protrusions 56 are equal to or less than ¼ of the wavelength λ corresponding to the maximum frequency of the transmission signal flowing through the terminal 8. This reduces the possibility of noise leakage from the region between the multiple protrusions 56 (the region of the outer shield 5 that is not electrically connected to the outer shield 1). Here, the creepage distance L2 between the protrusion 56 provided on the first outer peripheral wall 511 and the protrusion 56 provided on the second outer peripheral wall 512 is greater than the creepage distance L3 between the multiple protrusions 56 provided on the first outer peripheral wall 511. In other words, the maximum value of the creepage distance between the multiple protrusions 56 is the creepage distance L2. Here, the maximum frequency is, more specifically, the maximum frequency of the transmission signal flowing through the high-frequency terminal 8T among the multiple terminals 8. That is, in this embodiment, the maximum frequency is determined according to the specifications of the high-frequency terminal 8T.

[0122] Each of the multiple (four) top walls 52 has an L-shape when viewed from the top-bottom direction. The multiple (four) top walls 52 are connected to the lower end of the four corners of the outer peripheral wall 51 and extend inward of the outer peripheral wall 51 when viewed from the top-bottom direction.

[0123] The bottom wall 55 has a rectangular frame shape when viewed from the top-bottom direction. The bottom wall 55 is connected to the upper end of the outer peripheral wall 51 and extends outward from the outer peripheral wall 51 when viewed from the top-bottom direction. The lower surface of the bottom wall 55 is formed so as to be parallel to a plane including the front-rear and left-right directions.

[0124] The inner peripheral surface of the outer peripheral wall 51 corresponds to an inner peripheral surface 503 of the tubular portion 50. The outer shield 5 also has a tip surface 502. The tip surface 502 is provided at one end (lower end) of both ends of the tubular portion 50 in the first direction (vertical direction) that faces the mating connector when the connector (here, the header H1) and the mating connector (here, the socket S1) transition from a non-connected state to a connected state. The tip surface 502 is provided along the inner edge of the tubular portion 50. In this case, the upper surface of the top wall 52 corresponds to the tip surface 502. The inner edge of the tip surface 502 corresponds to part of the inner edge of the tubular portion 50 at the lower end of the tubular portion 50.

[0125] The boundary portion b3 between the tip surface 502 and the outer peripheral surface 501 is an arc-shaped surface when viewed from the front-to-rear direction (see FIG. 9). Here, the tip surface 502 is defined as a region of the outer surface of the tubular portion 50 that forms an acute angle with the up-down direction of 0 degrees or more and less than 45 degrees. The outer surface that forms the acute angle of 45 degrees or more is defined as the outer peripheral surface 501. The boundary portion b3 has a predetermined length along the circumferential direction of the tubular portion 10.

[0126] The multiple (two) shield protrusions 54 are provided so as to correspond one to two of the multiple (four) top walls 52. Each shield protrusion 54 protrudes upward from the corresponding top wall 52. The multiple (two) shield protrusions 54 correspond one-to-one to the multiple (two) insertion portions 623 (see FIG. 7) provided in the housing 6. Each shield protrusion 54 is inserted into the corresponding insertion portion 623.

[0127] The outer shield 5 is fixed to the housing 6 by press-fitting. That is, the outer shield 5 is held in the housing 6 by being pressed in one direction (upward) into the housing 6. At this time, the multiple top walls 52 of the outer shield 5 cover at least a portion of the peripheral wall 62 of the housing 6. Also, at this time, each shield protrusion 54 is inserted into the corresponding insertion portion 623.

[0128] The entire surface of the outer shield 5 is formed seamlessly. In this embodiment, at least the outer peripheral surface 501 and the inner peripheral surface 503 of the outer shield 5 are seamless (i.e., there are no seams or gaps) over the entire circumferential direction of the tubular portion 50.

[0129] 8, the outer peripheral surface 501 includes outer surfaces 5110 (including the surfaces of the first outer peripheral walls 511 and the surfaces of the protrusions 56) corresponding to the two first outer peripheral walls 511, and outer surfaces 5120 (including the surfaces of the second outer peripheral walls 512 and the surfaces of the protrusions 56) corresponding to the two second outer peripheral walls 512. Each of the outer surfaces 5110 and 5120 is seamless. Furthermore, the outer surfaces 5110 and 5120, which are two surfaces whose normal directions are different from each other, are seamlessly connected. In this way, the outer peripheral surface 501 is seamless over the entire circumferential direction of the tubular portion 50.

[0130] 8, the inner circumferential surface 503 includes an inner surface 5111 of each of the two first outer peripheral walls 511 and an inner surface 5121 of each of the two second outer peripheral walls 512. Each of the inner surfaces 5111 and 5121 is seamless. Furthermore, the inner surfaces 5111 and 5121, which are two surfaces whose normal directions are different from each other, are seamlessly connected. In this way, the inner circumferential surface 503 is seamless over the entire circumferential direction of the tubular portion 10.

[0131] Furthermore, there is no boundary b3 between the outer peripheral surface 501 and the tip surface 502. For example, in the upper right corner of Fig. 8 (a corner of the outer shield 5), the outer surface 5110, the outer surface 5120, and the tip surface 502, which are three surfaces whose normal directions are different from one another, are seamlessly connected.

[0132] (2.2.3) Inner shield of header In this embodiment, the two inner shields 7 have the same shape. The inner shields 7 contain metal as a main material or as a material such as plating that forms the surface. Here, as an example, the inner shields 7 are formed with metal as a main material. As shown in FIG. 9, the inner shields 7 have a base 71 and multiple (two) extensions 72 (first extensions).

[0133] The base 71 has a length in the third direction (left-right direction). The base 71 is shaped like a plate. When viewed in the thickness direction (front-rear direction) of the base 71, the base 71 is longer in the left-right direction than in the up-down direction. The base 71 is accommodated in an accommodating groove 613 provided in the bottom wall 61 of the housing 6.

[0134] The multiple extensions 72 protrude downward from the base 71. That is, the multiple extensions 72 protrude along the first direction (vertical direction) in a direction that faces the mating connector when the connector (here, the header H1) and the mating connector (here, the socket S1) transition from a non-connected state to a connected state. Each extension 72 is shaped like a rectangular plate. When viewed in the thickness direction (front-rear direction) of each extension 72, each extension 72 is longer in the vertical direction than in the horizontal direction. Note that the thickness direction of each extension 72 may also be the horizontal direction.

[0135] The extension 72 includes a contact portion 720 (contact surface) that comes into contact with the inner shield 3 of the mating connector (socket S1). The contact portion 720 is provided on a surface of the extension 72 that is along the length of the extension 72 (here, the left or right surface). The contact portions 720 of the two extensions 72 face in opposite directions (toward the right and toward the left).

[0136] The header H1 has two extensions 72 on each of the two inner shields 7. That is, the header H1 has a total of four extensions 72. The four receiving portions 68 (see FIG. 7) provided in the housing 6 correspond one-to-one to the four extensions 72. Each extension 72 is received in the corresponding receiving portion 68.

[0137] The inner shield 7 is fixed to the housing 6 by press-fitting. That is, the inner shield 7 is held in the housing 6 by being pressed in one direction (downward) relative to the housing 6. At this time, each extension 72 is housed in the corresponding housing portion 68. Here, the housing space for each of the two extensions 72 in the shield holding portion (housing portion 68) is larger than that of each of the two extensions 72.

[0138] As shown in FIG. 9, the base 71 of the inner shield 7 is located at the upper end of the header H1. Here, the outer shield 5 has a first end e5 and a second end e6. The first end e5 is the end (lower end) that faces the mating connector when the connector (here, the header H1) and the mating connector (here, the socket S1) transition from a disconnected state to a connected state. The second end e6 is the end (upper end) opposite the first end e5. Here, the second end e6 is defined as a region that extends over the entire circumferential direction of the bottom wall 55 of the outer shield 5. The outer shield 5 faces the two tip regions r7 of the inner shield 7 in a region including the second end e6.

[0139] The outer shield 5 faces at least one of the two tip regions r7 across a gap g7 in a region including the second end e6. As shown in FIG. 9 , conductors 570 and 580 of the circuit board 550 are electrically connected to the outer shield 5. The conductors 570 and 580 are provided so as to bridge the second end e6 of the outer shield 5 across the two tip regions r7 of the inner shield 7, respectively. That is, the outer shield 5 is electrically connected to the inner shield 7 via the conductors 570 and 580. On the other hand, in a state in which the circuit board 550 is not present, the outer shield 5 is electrically insulated from at least one of the two tip regions r7 (both in this embodiment) via the gap g7. The shortest distance L7 between the outer shield 5 and at least one of the two tip regions r7 across the gap g7 is 0.01 mm or more and 0.1 mm or less.

[0140] The inner shield 7 has a first end e7 and a second end e8. The first end e7 is the end (lower end) that faces the mating connector when the connector (here, the header H1) and the mating connector (here, the socket S1) transition from a non-connected state to a connected state. The second end e8 is the end (upper end) opposite the first end e7. The inner shield 7 has a connection surface 710 (upper surface) at the second end e8 that is electrically connected to the circuit board 550. The connection surface 710 is flat and continuous across the two tip regions r7. More specifically, the connection surface 710 is a rectangular plane that connects the two tip regions r7.

[0141] (2.2.4) Header terminals 6 and 7, the plurality (eight) of terminals 8 includes a plurality (six) of low-frequency terminals 8P and a plurality (two) of high-frequency terminals 8T. The arrangement of the plurality of terminals 8 is the same as the arrangement of the plurality of terminals 4 of the socket S1. In other words, the contents described in "(2.1.4.1) Arrangement" also apply to the plurality of terminals 8.

[0142] The terminals 8 have the same shape. Each terminal 8 is formed, for example, by punching and bending a metal plate. As shown in FIG. 11 , each terminal 8 has a (first) contact portion 81, a winding piece 82, a board connection portion 83, and a (second) contact portion 84.

[0143] The board connection portion 83 is electrically connected to, for example, the conductor 580 (solder) of the circuit board 550. That is, the board connection portion 83 is joined to the circuit board 550 by a joining means such as soldering. This electrically and mechanically connects the circuit board 550 and the terminal 8. As shown in FIG. 6 , the board connection portion 83 is surrounded by the outer shield 5 when viewed from a first direction (the vertical direction). Furthermore, at least a portion of the board connection portion 83 and at least a portion of the outer shield 5 exist on a plane perpendicular to the vertical direction.

[0144] The contact portion 81 and the contact portion 84 have a length in the vertical direction. The contact portion 81 is a portion that comes into contact with the contact portion 41 of the terminal 4 of the socket S1, and the contact portion 84 is a portion that comes into contact with the contact portion 46 of the terminal 4 of the socket S1. The winding piece 82 is formed in a U-shape that is open upward. The winding piece 82 connects the lower end of the contact portion 81 to the lower end of the contact portion 84. The board connection portion 83 is a portion that protrudes from the upper end of the contact portion 81.

[0145] When the terminal 8 is held in the housing 6, at least a portion of the contact portion 81 and the contact portion 84 is exposed when viewed from below. The contact portion 81 and the contact portion 84 come into contact with the corresponding terminal 4 among the multiple terminals 4 (mating terminals) of the socket S1 (mating connector) and are electrically connected to the terminal 4 (see FIG. 12).

[0146] The terminal 8 further has a force-sensing portion 85. The force-sensing portion 85 generates a clicking sensation when the terminal 8 comes into contact with the terminal 4 (mating terminal). The force-sensing portion 85 is a protrusion that protrudes from the contact portion 81. When the force-sensing portion 85 (protrusion) passes over the force-sensing portion 47 of the terminal 4, a clicking sensation is generated.

[0147] The contact portion 84 has a recess 840 on the surface that comes into contact with the contact portion 46. That is, the contact portion 46 is inserted into the recess 840. Here, the contact portion 46 comes into contact with the side surface of the recess 840.

[0148] As shown in FIG. 7, the abutting portion 720 of the inner shield 7 and the contact portion 81 of at least one of the terminals 8 are aligned in the second direction (front-rear direction).

[0149] (2.2.5) Header side circuit board The header H1 is electrically connected to a conductor 580 (solder) of the circuit board 550. In Fig. 6, the area on the top surface of the header H1 where the conductor 580 is provided is indicated by a two-dot chain line. The arrangement and electrical connection relationship of the conductors 570, 580, outer shield 5, multiple inner shields 7, and multiple terminals 8 of the circuit board 550 is similar to the arrangement and electrical connection relationship of the conductors 170, 180, outer shield 1, multiple inner shields 3, and multiple terminals 4 of the circuit board 150 corresponding to the socket S1.

[0150] (2.2.6) Header Electrical Closed Loop The arrangement of the outer shield 5, multiple (two) inner shields 7, and multiple (eight) terminals 8 of the header H1 is similar to the arrangement of the outer shield 1, multiple (two) inner shields 3, and multiple (eight) terminals 4 of the socket S1 shown in FIG. 13. Therefore, like the socket S1, the header H1 also has at least multiple (three) electrical closed loops LO1, LO2, and LO3 formed. The details of the electrical closed loops LO1, LO2, and LO3 of the header H1 are similar to the details of the electrical closed loops LO1, LO2, and LO3 of the socket S1. Furthermore, like the outer shield 1, the outer shield 5 forms an electrical closed loop LO4 surrounding the terminals 8 without relying on the inner shield 7.

[0151] Here, the outer shield 5 is formed so as to have no gaps in the circumferential direction of the cylindrical portion 50, and therefore constitutes an electrical closed loop LO4 by itself. However, the outer shield 5 may also constitute the electrical closed loop LO4 together with the conductors 570 and / or 580 of the circuit board 550. In other words, when a gap is formed in the outer shield 5, a path connecting both ends of the gap may be formed by the conductors 570 and / or 580, and the electrical closed loop LO4 may include this path. Here, the conductors 570 and / or 580 do not need to be included in the configuration of the header H1.

[0152] (3) Assembly process Next, an example of a process for assembling connector device 100 by connecting socket S1 and header H1 will be described with reference to FIGS.

[0153] The socket S1 is mechanically and electrically connected to the circuit board 150. The header H1 is mechanically and electrically connected to the circuit board 550. In this state, as shown in FIGS. 9 and 11, the socket S1 is placed below the header H1. Then, at least one of the socket S1 being moved up and the header H1 being moved down is performed. As a result, the socket S1 and the header H1 are mechanically connected to each other, as shown in FIGS. 10 and 12. As shown in FIG. 10, the inner shield 3 of the socket S1 and the inner shield 7 of the header H1 come into contact with each other and are electrically connected to each other. As shown in FIG. 12, the multiple terminals 4 of the socket S1 and the multiple terminals 8 of the header H1 come into contact with each other and are electrically connected to each other. As shown in FIGS. 10 and 12, the outer shield 1 of the socket S1 and the outer shield 5 of the header H1 come into contact with each other and are electrically connected to each other. Also, as shown in Figure 10, two wall portions 65 of the housing 6 of the header H1 are inserted between the first wall portion 25 and the second wall portion 26 of the housing 2 of the socket S1, and between the second wall portion 26 and the third wall portion 27.

[0154] When the socket S1 and the header H1 (connector and mating connector) transition from a non-connected state to a connected state, the components of the socket S1 and the header H1 come into contact with each other in the following order.

[0155] First, the socket S1 and the header H1 contact each other at the outer shields 1 and 5. That is, an area near the upper end of the inner circumferential surface 103 of the tubular portion 10 of the outer shield 1 contacts an area near the lower end of the outer circumferential surface 501 of the tubular portion 50 of the outer shield 5.

[0156] Next, the socket S1 and the header H1 come into contact with each other at the terminals 4, 8. That is, at least one of the contact portions 41 and 81 come into contact with each other and the contact portions 46 and 84 come into contact with each other.

[0157] Next, the socket S1 and the header H1 come into contact with each other at the inner shields 3 and 7. That is, the abutting portion 332 of the inner shield 3 and the abutting portion 720 of the inner shield 7 come into contact with each other.

[0158] Next, the force-sense portion 47 (or 85) of the connector (socket S1 or header H1) comes into contact with the mating terminal (terminal 8 or 4). That is, at least one of the force-sense portion 47 coming into contact with the contact portion 81 of terminal 8 and the force-sense portion 85 coming into contact with the contact portion 41 of terminal 4 occurs. Then, a clicking sensation is generated by the force-sense portions 47, 85.

[0159] Next, the outer shield 5 of the connector (here, the header H1) contacts the outer shield 1 of the mating connector (here, the socket S1) at the convex structure (plurality of protrusions 56) (also referred to as the contact portion). That is, the plurality of protrusions 56 contact the inner circumferential surface 103 of the tubular portion 10 of the outer shield 1 (see FIG. 10 ). More specifically, the plurality of protrusions 56 first contact an area near the upper end of the inner circumferential surface 103. Thereafter, due to the contact pressure between the plurality of protrusions 56 and the inner circumferential surface 103, the outer shield 1 elastically deforms so that the inner circumferential wall 13 of the outer shield 1 moves outward (toward the outer circumferential wall 11), and the plurality of protrusions 56 move further downward. Finally, as shown in FIG. 10 , the plurality of protrusions 56 contact an area of ​​the inner circumferential surface 103 along the vertical direction. This completes the connection between the socket S1 and the header H1.

[0160] In this way, a clicking sensation occurs in the terminals 4, 8 before the contact pressure and frictional force between the outer shields 1, 5 increase due to the multiple protrusions 56 coming into contact with the outer shield 1. Therefore, the click sensation is more easily perceived by the worker than when the click sensation occurs after the multiple protrusions 56 come into contact with the outer shield 1. In other words, it is possible to prevent the click sensation from becoming difficult to perceive due to frictional force. Furthermore, the positional relationship between the outer shields 1, 5, which is fixed by the multiple protrusions 56 coming into contact with the outer shield 1, will not be changed in subsequent processes, improving positioning accuracy. This ensures a sufficient contact area between the outer shields 1, 5.

[0161] (4) Noise level The solid line in Fig. 14 represents the analysis result of the radiation noise of the connector device 100 of the embodiment, and the dashed line in Fig. 14 represents the analysis result of the radiation noise of the connector device of the comparative example. The horizontal axis represents frequency (unit: [GHz]), and the vertical axis represents noise level (unit: [dBμV / m]). .

[0162] The connector device of the comparative example differs from the connector device 100 of the embodiment in that each of the outer shields 1, 5 is formed by bending a metal plate, but the other configurations are the same as those of the connector device 100 of the embodiment. Therefore, in each of the outer shields 1, 5 of the connector device of the comparative example, a seam or a gap exists in the circumferential direction of the tubular portion 10 (50), for example, on the outer peripheral surface and inner peripheral surface of the tubular portion 10 (50). In contrast, in the connector device 100 of the embodiment, each of the outer shields 1, 5 is formed by drawing metal. Therefore, the outer peripheral surface and inner peripheral surface of the tubular portion 10 (50) of each of the outer shields 1, 5 are formed seamlessly (i.e., without seams or gaps) around the entire circumferential direction of the tubular portion 10 (50).

[0163] 14, at each frequency, the connector device 100 of the embodiment has a lower noise level than the connector device of the comparative example. In other words, compared to the comparative example, in the embodiment, the joints between the outer shields 1 and 5 are eliminated, which not only suppresses the effects of resonance but also reduces noise radiated from the joints.

[0164] (Variation 1) The socket S2 and header H2 according to the first modification will be described below with reference to Figures 15 to 18. The same components as those in the embodiment are denoted by the same reference numerals and will not be described again. In Figures 15 and 17, the areas where conductors 180 and 580 (solder) are provided are indicated by two-dot chain lines.

[0165] 15 and 16, the socket S2 has only one inner shield 3. The socket S2 also has only two terminals 4. Accordingly, the shapes of the outer shield 1A and the housing 2A are different from the shapes of the outer shield 1 and the housing 2 of the embodiment. This will be explained in more detail below.

[0166] The outline of the housing 2A is the same as that of the housing 2 of the embodiment, omitting the area where the six low-frequency terminals 4P are provided. The outline of the outer shield 1A is the same as that of the outer shield 1 of the embodiment, omitting the area where the six low-frequency terminals 4P are provided.

[0167] Each of the first wall portion 25, the second wall portion 26, and the third wall portion 27 of the housing 2 has one receiving portion 28. The three receiving portions 28 receive the three extension portions 32 of the inner shield 3.

[0168] Furthermore, each of the first wall portion 25 and the third wall portion 27 has one terminal holding portion 29. The second wall portion 26 has two terminal holding portions 29. One of the two terminals 4 is held by the terminal holding portion 29 of the first wall portion 25 and one of the terminal holding portions 29 of the second wall portion 26. The other of the two terminals 4 is held by the terminal holding portion 29 of the third wall portion 27 and the other terminal holding portion 29 of the second wall portion 26.

[0169] Here, the two terminals 4 are high-frequency terminals 4T, but the present invention is not limited to this, and at least one of the two terminals 4 may be a low-frequency terminal 4P.

[0170] The two high-frequency terminals 4T are arranged on both sides (front and rear) of the inner shield 3. Therefore, similar to the embodiment, it is possible to reduce the possibility of noise propagation between the two high-frequency terminals 4T.

[0171] 17 and 18, the header H2 has only one inner shield 7. The header H2 also has only two terminals 8. Accordingly, the shapes of the outer shield 5A and the housing 6A are different from those of the outer shield 5 and the housing 6 of the embodiment. This will be explained in more detail below.

[0172] The outline of the housing 6A is the same as that of the housing 6 of the embodiment, omitting the area where the six low-frequency terminals 8P are provided. The outline of the outer shield 5A is the same as that of the outer shield 5 of the embodiment, omitting the area where the six low-frequency terminals 8P are provided.

[0173] Each of the two walls 65 of the housing 6 has one receiving portion 68. In these (two) receiving portions 68, two extensions 72 of the inner shield 7 are received.

[0174] Each of the two wall portions 65 has one terminal holding portion 69. Each terminal holding portion 69 holds a terminal 8.

[0175] Here, the two terminals 8 are high-frequency terminals 8T, but the present invention is not limited to this, and at least one of the two terminals 8 may be a low-frequency terminal 8P.

[0176] The two high-frequency terminals 8T are arranged on both sides (front and rear) of the inner shield 7. Therefore, similar to the embodiment, it is possible to reduce the possibility of noise propagation between the two high-frequency terminals 8T.

[0177] (Variation 2) The socket S1 and header H1 according to Modification 2 will be described below with reference to Figs. 19 and 20. The same components as those in the embodiment are denoted by the same reference numerals, and their description will be omitted. Note that Figs. 19 and 20 illustrate only two high-frequency terminals 4T and two high-frequency terminals 8T of the socket S1 and header H1.

[0178] In the present modified example 2, the low frequency terminal 4P and the high frequency terminal 4T in the socket S1 have different shapes, and the low frequency terminal 8P and the high frequency terminal 8T in the header H1 have different shapes.

[0179] That is, the socket S1 of the present modified example 2 has a plurality of terminals 4. The header H1 has a plurality of terminals 8. The plurality of terminals 4 (or 8) includes a first terminal (low-frequency terminal 4P or 8P) and a second terminal (high-frequency terminal 4T or 8T). The second terminal has a shape different from that of the first terminal. An inner shield 3 (or 7) is arranged between the first terminal and the second terminal (see FIG. 13).

[0180] As an example, the low frequency terminal 4P has the same shape as the low frequency terminal 4P in the embodiment. Also, as an example, the low frequency terminal 8P has the same shape as the low frequency terminal 8P in the embodiment.

[0181] 19, the high-frequency terminal 4T of the present second modification has, for example, two contact portions 41, a base portion 42, and a board connection portion 45. The high-frequency terminal 4T is formed by, for example, punching and bending a metal plate.

[0182] The base 42 is formed in a U-shape that is open upward. The board connection portion 45 is connected to the lower end of the base 42. One contact portion 41 protrudes in the front-rear direction from the left end of the base 42, and the other contact portion 41 protrudes in the front-rear direction from the right end of the base 42.

[0183] 19, the high-frequency terminal 8T has, for example, two contact portions 81, a base portion 86, and a board connection portion 83. The high-frequency terminal 8T is formed, for example, by punching and bending a metal plate.

[0184] The base 86 is formed in a U-shape that is open downward. The board connection portion 83 is connected to the upper end of the base 86. One contact portion 81 protrudes to the left from the left end of the base 86, and the other contact portion 81 protrudes to the right from the right end of the base 86.

[0185] In the process of connecting the socket S1 and the header H1, each high-frequency terminal 4T is connected to a corresponding high-frequency terminal 8T, as shown in Fig. 20. That is, the high-frequency terminal 8T is inserted between the two contact portions 41 of the high-frequency terminal 4T. As a result, each of the two contact portions 41 comes into contact with the corresponding contact portion 81. At this time, the distance between the two contact portions 41 is widened in the left-right direction.

[0186] The terminals 4, 8 may be shaped as follows: Since the low-frequency terminal 4P (8P) may be connected to the power supply wiring and ground, it may be wider than the high-frequency terminal 4T (8T) to reduce resistance. Also, to reduce resistance at the low-frequency terminals 4P, 8P, the contact area between the low-frequency terminal 4P and the low-frequency terminal 8P may be larger than the contact area between the high-frequency terminal 4T and the high-frequency terminal 8T. Furthermore, since the high-frequency terminal 4T (8T) transmits high-speed signals, it may be shaped so that its characteristic impedance matches the characteristic impedance of the signal line formed on the circuit board 150 (550).

[0187] Furthermore, in only one of the socket S1 and the header H1, the low frequency terminal 4P (8P) and the high frequency terminal 4T (8T) may have different shapes.

[0188] (Other Modifications of the Embodiments) Other variations of the embodiment are listed below. The following variations may be implemented in appropriate combination. The following variations may also be implemented in appropriate combination with the above-described variation 1.

[0189] The outer shield 1 (5) and the inner shield 3 (7) are not limited to being electrically connected to each other via the conductor 180 (580) of the circuit board 150 (550), but may also be electrically connected to each other via another conductive member.

[0190] At least one of the outer shield 1 (5), the plurality of inner shields 3 (7) and the plurality of terminals 4 (8) may contact the conductor 170 (570) and thereby be electrically connected to the conductor 170 (570).

[0191] As shown in FIG. 21 , in the socket S1, at least one of the two tip regions r1 of the inner shield 3 (both in FIG. 21 ) may be directly coupled to the outer shield 1. Similarly, in the header H1, at least one of the two tip regions r7 of the inner shield 7 may be directly coupled to the outer shield 5. For example, the length of the inner shield 3 (7) may be extended compared to the embodiment, and the inner shield 3 (7) may be coupled to the outer shield 1 (5) by means of welding, press-fitting, crimping, or the like. Alternatively, a portion of the inner shield 3 (7) including the tip region r1 (r7) and at least a portion of the outer shield 1 (5) may be formed from a single member. Note that the inner shield 3 (7) and the outer shield 1 (5) may be seamlessly connected.

[0192] The extension 32 (or 72) is not limited to protruding in the up-down direction from the base 31 (or 71). For example, the extension 32 (or 72) may protrude in the front-rear direction from the base 31 (or 71).

[0193] The number of each component in the embodiment is merely an example and is not limited to the number shown in the embodiment. For example, the number of extensions 32 (72) of the inner shield 3 (7) can be changed as appropriate. Furthermore, the number of terminals 4 (8) of each connector (socket S1 and header H1) can be changed as appropriate. Furthermore, each connector may have only low-frequency terminals 4P (8P) as terminals 4 (8), or only high-frequency terminals 4T (8T).

[0194] In the embodiments, a portion formed as a recess or a depression may be replaced with a through-hole, and conversely, a portion formed as a through-hole may be replaced with a recess or a depression.

[0195] In the embodiment, the portions joined by press fitting may be joined by insert molding. Conversely, in the embodiment, the portions joined by insert molding may be joined by press fitting. Furthermore, instead of press fitting or insert molding, another joining method, such as adhesive bonding, welding, or crimping, may be employed.

[0196] The outer shields 1, 5 may be formed by, for example, molding instead of drawing, whereby at least a portion of the surface of the outer shields 1, 5 (for example, the entire outer peripheral surface 101, 501) may be formed seamlessly. Also, at least a portion of the surface of the outer shields 1, 5 may be formed seamlessly by, for example, welding.

[0197] The plurality of protrusions 56 of the outer shield 5 may be provided on the inner peripheral surface 503 of the cylindrical portion 50 instead of on the outer peripheral surface 501 thereof.

[0198] A portion of the configuration of the socket S1 in the embodiment may be applied to the header H1 as appropriate. Conversely, a portion of the configuration of the header H1 in the embodiment may be applied to the socket S1 as appropriate. For example, the multiple protrusions 56 may be provided on both the outer shields 1 and 5, or may be provided only on the outer shield 1 of the outer shields 1 and 5.

[0199] (summary) The above-described embodiments and the like disclose the following aspects.

[0200] The connector (socket S1, S2 or header H1, H2) according to the first aspect includes an outer shield (1, 1A or 5, 5A), terminals (4 or 8), and a housing (2, 2A or 6, 6A). The outer shield (1, 1A or 5, 5A) has a cylindrical portion (10 or 50). The cylindrical portion (10 or 50) is open at both ends in a predetermined direction. The terminals (4 or 8) are surrounded by the outer shield (1, 1A or 5, 5A). The terminals (4 or 8) are electrically connected to mating terminals of a mating connector. The housing (2, 2A or 6, 6A) is fixed to the outer shield (1, 1A or 5, 5A). The housing (2, 2A or 6, 6A) holds the terminals (4 or 8). The outer shield (1, 1A, or 5, 5A) has a tip surface (102 or 502), an outer peripheral surface (101 or 501) of the tubular portion (10 or 50), and an inner peripheral surface (103 or 503) of the tubular portion (10 or 50). The tip surface (102 or 502) is provided along the inner edge of the tubular portion (10 or 50) at one of the two ends of the tubular portion (10 or 50), which will be described below. The one end is the end that faces the mating connector when the connector and the mating connector transition from a non-connected state to a connected state. At least one of the tip surface (102 or 502), the outer peripheral surface (101 or 501), and the inner peripheral surface (103 or 503) is seamless around the entire circumferential direction of the tubular portion (10 or 50).

[0201] According to the above configuration, noise radiated from the outer shield (1, 1A or 5, 5A) can be reduced compared to when there are seams or gaps on the tip surface (102 or 502), outer peripheral surface (101 or 501), and inner peripheral surface (103 or 503).

[0202] In addition, in the connector (socket S1, S2 or header H1, H2) according to the second aspect, in the first aspect, at least one of the boundary portion (b1 or b3) between the tip surface (102 or 502) and the outer peripheral surface (101 or 501) and the boundary portion (b2) between the tip surface (102 or 502) and the inner peripheral surface (103 or 503) is seamless around the entire circumferential direction of the tubular portion (10 or 50).

[0203] According to the above configuration, noise radiated from the outer shield (1, 1A or 5, 5A) can be reduced compared to when there is a seam or gap at each boundary portion (b1, b2 or b3).

[0204] In addition, in the connector (socket S1, S2 or header H1, H2) according to the third aspect, in the first or second aspect, the housing (2, 2A or 6, 6A) has an insertion portion (223 or 623). The outer shield (1, 1A or 5, 5A) has a shield protrusion (14 or 54). The shield protrusion (14 or 54) is a protrusion that is inserted into the insertion portion (223 or 623).

[0205] According to the above configuration, it is possible to reduce the possibility of misalignment occurring between the outer shield (1, 1A or 5, 5A) and the housing (2, 2A or 6, 6A).

[0206] In addition, in the connector (socket S1, S2 or header H1, H2) according to the fourth aspect, in any one of the first to third aspects, the outer peripheral surface (101 or 501) and the inner peripheral surface (103 or 503) are seamless around the entire circumferential direction of the tubular portion (10 or 50).

[0207] According to the above configuration, noise radiated from the outer shield (1, 1A or 5, 5A) can be reduced compared to when there is a seam or gap on the outer peripheral surface (101 or 501) and the inner peripheral surface (103 or 503), respectively.

[0208] In addition, in a connector (sockets S1, S2) according to a fifth aspect, in any one of the first to fourth aspects, the housing (2, 2A) has a cylindrical peripheral wall (22). The peripheral wall (22) surrounds the terminal (4). The peripheral wall (22) is continuous over the entire circumferential direction of the peripheral wall (22).

[0209] According to the above configuration, the strength of the peripheral wall (22) can be ensured.

[0210] In addition, in a connector (socket S1, S2 or header H1, H2) according to a sixth aspect, in any one of the first to fifth aspects, the outer shield (1, 1A or 5, 5A) has a contact portion (inner circumferential surface 103 or protrusion 56). The contact portion comes into contact with the outer shield of the mating connector.

[0211] According to the above configuration, the outer shield (1, 1A or 5, 5A) of the connector can be electrically connected to the outer shield of the mating connector.

[0212] In addition, in the connector (header H1, H2) according to the seventh aspect, in the sixth aspect, the outer shield (5, 5A) has a protrusion (56) as a contact portion on at least one of the outer surface (501) and the inner surface (503) of the tubular portion (50).

[0213] With the above configuration, even if there is some variation in the dimensions of the outer shield (5, 5A) of the connector and the outer shield (1, 1A) of the mating connector, it is possible to press one outer shield into the other outer shield, which improves the dimensional tolerance of the outer shield (5, 5A) of the connector and the outer shield (1, 1A) of the mating connector.

[0214] In addition, in the connector (headers H1, H2) according to an eighth aspect, in the seventh aspect, the outer shield (5, 5A) has a plurality of protrusions (56). The plurality of protrusions (56) are provided at intervals in the circumferential direction of the cylindrical portion (50).

[0215] According to the above configuration, the dimensional tolerances of the outer shield (5, 5A) of the connector and the outer shield (1, 1A) of the mating connector are further improved.

[0216] In addition, in the connector (socket S1, S2 or header H1, H2) according to the ninth aspect, in the eighth aspect, the maximum creepage distance between the multiple protrusions (56) is less than 1 / 4 of the wavelength corresponding to the maximum frequency of the transmission signal flowing through the terminal.

[0217] According to the above configuration, the possibility of noise leakage from the area between the multiple protrusions (56) (area of ​​the outer shield (5, 5A) that is not electrically connected to the outer shield (1, 1A) of the mating connector) can be reduced.

[0218] In addition, in a connector (socket S1, S2 or header H1, H2) according to a tenth aspect, in any one of the sixth to ninth aspects, the terminal (4 or 8) has a force-sensing portion (47 or 85). The force-sensing portion (47 or 85) generates a clicking sensation when the terminal (4 or 8) comes into contact with the mating terminal. When the connector and the mating connector transition from a non-connected state to a connected state, the force-sensing portion (47 or 85) of the connector comes into contact with the mating terminal, and then the contact portion (inner circumferential surface 103 or protrusion 56) of the outer shield (1, 1A or 5, 5A) of the connector comes into contact with the outer shield of the mating connector.

[0219] According to the above configuration, the accuracy of positioning of the connector and the mating connector can be improved.

[0220] In addition, in a connector (socket S1, S2 or header H1, H2) according to an eleventh aspect, in the tenth aspect, the terminal (4 or 8) has a board connection portion (45 or 83). The board connection portion (45 or 83) is electrically connected to a circuit board (150 or 550). When viewed from a predetermined direction, the board connection portion (45 or 83) is surrounded by an outer shield (1, 1A or 5, 5A).

[0221] According to the above configuration, it is possible to reduce the possibility of noise propagation occurring in the board connection portion (45 or 83).

[0222] The configurations other than those of the first aspect are not essential for the connector (sockets S1, S2 or headers H1, H2) and can be omitted as appropriate.

[0223] A connector device (100) according to a twelfth aspect includes a connector (socket S1, S2 or header H1, H2) according to any one of the first to eleventh aspects, and a mating connector.

[0224] According to the above configuration, noise radiated from the outer shield (1, 1A or 5, 5A) can be reduced compared to when there are seams or gaps on the tip surface (102 or 502), outer peripheral surface (101 or 501), and inner peripheral surface (103 or 503). [Explanation of symbols]

[0225] 1, 1A outer shield 10 Cylindrical part 14 Shield protrusion 101 Outer surface 102 Tip surface 103 Inner surface (contact area) 150 Circuit Board 2, 2A housing 22 Peripheral wall 223 Insertion part 3 Inner shield 4 terminals 45 PCB connection part 47 Force sensor 5, 5A outer shield 50 Cylindrical part 501 Outer surface 502 Tip surface 503 Inner surface 54 Shield protrusion 56 Protrusion (contact part) 550 Circuit Board 6, 6A housing 623 Insertion part 7 Inner shield 8 terminals 83 PCB connection part 85 Force sensor 100 Connector device b1, b2, b3 boundary part H1, H2 headers (connectors) S1, S2 sockets (connectors)

Claims

1. A connector that connects with a mating connector having a plurality of mating terminals by moving relatively in an upward direction among up and down directions with respect to the mating connector, The connector comprises: Housing and a plurality of terminals held in the housing and electrically contacting the plurality of mating terminals; an outer shield secured to the housing; an inner shield disposed between a first terminal and a second terminal of the plurality of terminals, The outer shield is a pair of first outer shields facing each other in a left-right direction perpendicular to the up-down direction; a second outer shield connected to each of the pair of first outer shields, The housing includes: The bottom wall and a wall portion protruding upward from the bottom wall; a housing end portion in which the first terminal and the inner shield are arranged, the housing end portion being formed at one end in a front-rear direction perpendicular to the up-down direction and the left-right direction of the connector, the wall portion includes a housing wall portion extending from the housing end portion in the front-rear direction and on which the second terminal is disposed; the inner shield is formed continuously with the pair of first outer shields and is in contact with the wall portion; the outer shield surrounds the plurality of terminals; When viewed from the top-bottom direction, a gap is formed between the pair of first outer shields and the housing wall portion, penetrating the connector in the top-bottom direction, and a board connection portion of the second terminal that is connected to a circuit board is disposed in the gap. connector.

2. the outer shield seamlessly surrounds the plurality of terminals; The connector according to claim 1 .

3. The inner shield is exposed on the bottom surface of the housing.

3. The connector according to claim 1 or 2.

4. The semiconductor device further includes another inner shield arranged between one of the first terminal and the second terminal and another terminal of the plurality of terminals other than the first terminal and the second terminal, when viewed from above; the one of the first terminal and the second terminal is disposed between the inner shield and the other inner shield as viewed along the up-down direction; The connector according to any one of claims 1 to 3.

5. The mating connector is A mating housing; the plurality of mating terminals held in the mating housing; a mating outer shield fixed to the mating housing; a mating inner shield disposed between a first mating terminal and a second mating terminal, the first terminal and the second terminal being in contact with each other, among the plurality of mating terminals; Equipped with The connector according to any one of claims 1 to 4.

6. A mating connector to be connected to the connector according to any one of claims 1 to 5, The mating connector is A mating housing; the plurality of mating terminals held in the mating housing; a mating outer shield fixed to the mating housing; a mating inner shield disposed between a first mating terminal and a second mating terminal, the first terminal and the second terminal being in contact with each other, among the plurality of mating terminals; Equipped with Mating connector.

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