Connector for high-speed transmission

Abstract

The present invention provides a connector for high-speed transmission, which improves the strength of the housing of the connector for high-speed transmission. The connector (8) for high-speed transmission includes: an outer housing (21) having: a slot (6) for fitting the head portion (90) of an optical transceiver (9); and a front upper plate portion (220) and a front lower plate portion (230) that face each other up and down with the slot (6) therebetween; an inner housing (31); rows of first contact pieces (1a) and second contact pieces (1b) on the front side, which are supported by the outer housing (21) such that the front-end side contact portions (11a, 11b) are exposed on the front side within the slot (6); rows of third contact pieces (1c) and fourth contact pieces (1d) on the rear side, which are supported by the inner housing (31) such that the front-end side contact portions (11c, 11d) are exposed on the rear side within the slot (6); and a metal component (7) that supports the front upper plate portion (220) and the front lower plate portion (230) and fastens the front upper plate portion (220) and the front lower plate portion (230).

Description

Technical Field

[0001] The present invention relates to a high-speed transmission connector mounted on a circuit board. Background Art

[0002] In high-speed transmission connectors, there are generally single-type connectors and so-called DD (Double Density) type connectors that can transmit signals with a larger number of channels than the former. In the DD type connector, there are a total of four rows of contacts, two upper and lower rows on the front side and two upper and lower rows on the rear side, in the slot for housing the head of the communication object module. Through these four rows of contacts, the DD type connector can perform high-speed signal transmission of up to eight channels. As a document disclosing a technology related to such a connector, there is Patent Document 1. The electrical connector structure disclosed in Patent Document 1 is a laminate including an upper-side contact module including a first contact and a second contact and a lower-side contact module including a third contact and a fourth contact, which is disposed between a bottom wall and an upper wall facing each other with an engaging slot interposed therebetween in a housing. The contact portions at the front ends of the first contact and the second contact face each other vertically on the front side in the engaging slot, the contact portions at the front ends of the third contact and the fourth contact face each other vertically on the rear side in the engaging slot, and the mounting portions at the rear ends of the first contact to the fourth contact are exposed downward from the opening below the bottom wall.

[0003] [Prior Art Documents]

[0004] [Patent Documents]

[0005] [Patent Document 1] U.S. Patent No. 2019-0131743A1 Summary of the Invention

[0006] However, with the miniaturization and high density of the connector, it has become difficult to make the upper and lower plates of the slot in the housing have a thickness that can ensure sufficient strength. In particular, in the DD type connector, since the head of the module is inserted between the upper and lower plates, it is impossible to provide a connecting plate member between the partitions supporting the contacts in the upper and lower plates, and it is impossible to provide a connecting portion only in the pitch direction of the contacts. Therefore, it is more difficult to ensure the strength in the DD type connector. In addition, when heating is performed in the state where the module is engaged in the DD type connector, the difficulty lies in ensuring the strength only by the housing, and the housing bulges, resulting in a loss of contact force and unstable contact.

[0007] The present invention has been completed in view of such problems, and an object thereof is to improve the strength of the housing of a high-speed transmission connector.

[0008] In order to solve the above problems, a high-speed transmission connector as a preferred embodiment of the present invention is characterized by comprising: a housing having a slot for fitting the head of a communication object; an upper plate portion and a lower plate portion that face each other vertically with the slot therebetween; a row of front-side contacts supported by the housing in such a manner that the contact portions are exposed at the front side within the slot; a row of rear-side contacts supported by the housing in such a manner that the contact portions are exposed at the rear side within the slot; and a metal member that supports the upper plate portion and the lower plate portion and fastens the upper plate portion and the lower plate portion.

[0009] In this embodiment, it is also possible that the metal member has a shape formed by bending a single metal plate.

[0010] Alternatively, the metal member may have: a lateral plate portion extending along one direction; longitudinal plate portions bent and extending downward from both ends of the lateral plate portion; and return portions bent and extending inward from the lower ends of the longitudinal plate portions.

[0011] Alternatively, a recess may be provided in the housing, which is formed by recessing a portion of the housing from the upper surface through the side surface to the lower surface, and a convex portion protruding downward is provided in a portion that wraps around from one side of the side surface to one side of the lower surface in the recess.

[0012] Alternatively, the metal member may have: a lateral plate portion extending along one direction; longitudinal plate portions bent and extending downward from both ends of the lateral plate portion; return portions bent and extending inward from the lower ends of the longitudinal plate portions; a protruding portion protruding forward from the front end edge of the longitudinal plate portion; a second longitudinal plate portion extending downward from the front end of the protruding portion; and a second return portion bent and extending inward from the lower end of the second longitudinal plate portion.

[0013] Alternatively, the housing may be provided with: a recess formed by recessing a portion of the housing from the upper surface through the side surface to the lower surface; and a second recess formed by recessing an intersecting portion of the side surface in front of the recess and the lower surface. A convex portion protruding downward is provided in a portion that wraps around from one side of the side surface to one side of the lower surface in the recess, and a second convex portion protruding downward is provided in a portion that wraps around from one side of the side surface to one side of the lower surface in the second recess. The return portion supports the convex portion from below, and the second return portion supports the second convex portion from below.

[0014] Alternatively, a portion between the recess and the second recess on one side surface of the housing protrudes outward as a third convex portion, and the third convex portion is fitted in a portion surrounded by the longitudinal plate portion, the protruding portion, and the second longitudinal plate portion.

[0015] Alternatively, solder may be formed on the joint portion of the circuit board through the lower surface of the return portion.

[0016] Alternatively, the housing may include an upper housing, a lower housing, and an inner housing. The upper housing, the lower housing, and the inner housing are combined such that the upper housing and the lower housing are joined together in the vertical direction with a gap therebetween, and the inner housing is received in the upper housing and the lower housing. A recess for fitting the metal component is formed in a portion of the upper housing and the lower housing that surrounds the slot.

[0017] The present invention includes: a housing having a slot for fitting the head of a communication object; an upper plate portion and a lower plate portion facing each other above and below the slot; a row of front-side contacts supported by the housing so as to expose contact portions on the front side within the slot; a row of rear-side contacts supported by the housing so as to expose contact portions on the rear side within the slot; and a metal component that supports and fastens the upper plate portion and the lower plate portion. Thus, when the head of an optical transceiver is inserted into the slot, the force that tends to expand the upper plate portion, the lower plate portion, and the like can be suppressed by the metal component. Therefore, the strength of the housing can be reinforced, and loss of contact force or instability of contact can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In Figure 1 , (A) is a perspective view of a high-speed transmission connector 8 according to a first embodiment of the present invention, and (B) is a perspective view of an optical transceiver 9 fitted to the high-speed transmission connector 8 of (A).

[0019] In Figure 2 , (A) is a view of Figure 1 (A) observed from the -Y side, (B) is a view of Figure 1 (A) observed from the +Z side, (C) is a view of Figure 1 (A) observed from the -X side, (D) is a cross-sectional view of (A) taken along line H-H, (E) is a cross-sectional view of (A) taken along line I-I, and (F) is a view of the contacts 1a, 1b, 1c, and 1d observed from the -X side.

[0020] In Figure 3 , (A) is a cross-sectional view of Figure 2 (C) of Figure 2 taken along line Q-Q, (B) is a cross-sectional view of Figure 2 (C) of

[0021] Figure 4 is Figure 1 a perspective view of the metal component 7 of (A).

[0022] In Figure 5In (A), it is a view observed from the +Z side from Figure 4 The figure of, (B) is a view observed from the -Y side Figure 4 The figure of, (C) is a view observed from the -Z side Figure 4 The figure of, (D) is a view observed from the -X side Figure 4 The figure of.

[0023] Figure 6 Is a perspective view of the high-speed transmission connector 8A as the second embodiment of the present invention.

[0024] In Figure 7 , (A) is a view observed from the -Y side Figure 6 The figure of, (B) is a view observed from the +Z side Figure 6 The figure of, (C) is a view observed from the -X side Figure 6 The figure of, (D) is a sectional view taken along the L-L line of (A), and (E) is a sectional view taken along the M-M line of (A).

[0025] In Figure 8 , (A) is Figure 7 The sectional view taken along the R-R line of (C) of, (B) is Figure 7 The sectional view taken along the N-N line of (C) of, (C) is Figure 7 The sectional view taken along the O-O line of (C) of.

[0026] Figure 9 Is a perspective view of the high-speed transmission connector 8B as the third embodiment of the present invention.

[0027] In Figure 10 , (A) is a view observed from the -Y side Figure 9 The figure of, (B) is a view observed from the +Z side Figure 9 The figure of, (C) is a view observed from the -X side Figure 9 The figure of, (D) is a sectional view taken along the S-S line of (A), and (E) is a sectional view taken along the T-T line of (A).

[0028] In Figure 11 , (A) is Figure 10 The sectional view taken along the W-W line of (C) of, (B) is Figure 10 The sectional view taken along the U-U line of (C) of, (C) is Figure 10 The sectional view taken along the V-V line of (C) of.

[0029] Figure 12 Is a perspective view of the high-speed transmission connector 8C as the fourth embodiment of the present invention.

[0030] Figure 13 Is a perspective view observed from other directions Figure 12 The figure of.

[0031] Figure 14 Is Figure 12Stereogram of the metal component 7.

[0032] In Figure 15 , (A) is a view observed from the +Z side of Figure 14 , (B) is a view observed from the -Y side of Figure 14 , (C) is a view observed from the -Z side of Figure 14 , (D) is a view observed from the -X side of Figure 14 .

[0033] Explanation of reference numerals

[0034] 1a First contact piece; 1b Second contact piece; 1c Third contact piece; 1d Fourth contact piece; 2a Groove; 2b Groove; 3c Hole; 3d Hole; 6 Socket; 7 Metal component; 7C Second metal component; 8 High-speed transmission connector; 8A High-speed transmission connector; 8B High-speed transmission connector; 8C High-speed transmission connector; 9 Optical transceiver; 11a Front-end side contact portion; 11b Front-end side contact portion; 11c Front-end side contact portion; 11d Front-end side contact portion; 12a Straight portion; 12b Straight portion; 12c Straight portion; 12d Straight portion; 13a Straight portion; 13b Straight portion; 14a Straight portion; 14b Straight portion; 15a Straight portion; 15b Straight portion; 15c Straight portion; 15d Straight portion; 16a Straight portion; 16b Straight portion; 16c Straight portion; 16d Straight portion; 17a Substrate side contact portion; 17b Substrate side contact portion; 17c Substrate side contact portion; 17d Substrate side contact portion; 20 Opening; 21 Outer housing; 21a Upper housing; 21b Lower housing; 23 Hollow portion; 27 Step portion; 28 Step portion; 29 Open portion; 30 Opening; 31 Inner housing; 70 Joint portion; 72 Lateral plate portion; 74 Longitudinal plate portion; 75 Protrusion; 76 Second longitudinal plate portion; 90 Head portion; 220 Front upper plate portion; 221 Rear upper plate portion; 226 Convex portion; 228 Second convex portion; 229 Third convex portion; 230 Front lower plate portion; 231 Rear lower plate portion; 240 Side plate portion. Detailed description of the preferred embodiment

[0035] <First Embodiment>

[0036] Hereinafter, with reference to the drawings, the high-speed transmission connector 8 as one embodiment of the present invention will be described. The high-speed transmission connector 8 is mounted on a circuit board and used. In the socket 6 of the high-speed transmission connector 8, the head portion 90 of the optical transceiver 9 of the device to be communicated is fitted.

[0037] In the following description, the mounting direction of the high-speed transmission connector 8 with respect to the circuit board is referred to as the Z direction, the mating direction of the high-speed transmission connector 8 and the optical transceiver 9 is referred to as the Y direction, and the direction orthogonal to both the Z direction and the X direction is referred to as the Y direction. In addition, the side of the high-speed transmission connector 8 in the Z direction, i.e., the +Z side, is appropriately referred to as the upper side, and the side of the circuit board, i.e., the -Z side, is appropriately referred to as the lower side. In addition, the side of the optical transceiver 9 in the X direction, i.e., the -Y side, is appropriately referred to as the front side, and the side of the high-speed transmission connector 8 in the X direction, i.e., the +Y side, is appropriately referred to as the rear side. In addition, the +X side is appropriately referred to as the left side, and the -X side is appropriately referred to as the right side.

[0038] As Figure 1 As shown in (B) of, the optical transceiver 9 has a stick shape. The head portion 90 protrudes from the front end portion of the optical transceiver 9. On the -Y side of the upper surface of the head portion 90, there is a column of the first pads PADa, and on the -Y side of the lower surface, there is a column of the second pads PADb. On the +Y side of the upper surface of the head portion 90, there is a column of the third pads PADc, and on the +Y side of the lower surface, there is a column of the fourth pads PADd.

[0039] The high-speed transmission connector 8 includes a housing 21, an inner housing 31, eleven first contacts 1a, eleven second contacts 1b, eleven third contacts 1c, eleven fourth contacts 1d, and a metal member 7.

[0040] The housing 21 has a box shape with an opening 20 and a cavity 23 at its rear side. The housing 21 includes: a front upper plate portion 220 and a front lower plate portion 230, which face each other vertically across the opening 20; a pair of left and right side plate portions 240, which are sandwiched between the front upper plate portion 220 and the front lower plate portion 230; a rear upper plate portion 221 and a rear lower plate portion 231, which face each other vertically across the cavity 23; and a pair of left and right side plate portions 241, which are sandwiched between the rear upper plate portion 221 and the rear lower plate portion 231.

[0041] A part of the front side of the rear upper plate portion 221 is dug downward to form a stepped portion 27. A part of the rear side of the rear lower plate portion 231 is dug upward to form a stepped portion 28. The rear part of the stepped portion 28 is open downward as an open portion 29.

[0042] On the outer periphery of the housing 21, there is a recess 225. The recess 225 is formed by indenting a part of the housing 21 from the upper surface through the side surface to the lower surface. As Figure 3As shown in (B), a convex portion 226 protruding downward is provided at a portion that wraps around from one side of one side surface of the outer housing 21 to one side of the lower surface in the recess 225. In addition, the depths of the recesses 225 in the front upper plate portion 220 and the side plate portion 240 are substantially the same, and the depth of the recess 225 in the front lower plate portion 230 is deeper than the depths of the recesses 225 in the front upper plate portion 220 and the side plate portion 240.

[0043] As Figure 3 shown in (B), columns of grooves 2a and columns of grooves 2b are provided on the surface of the front upper plate portion 220 facing the opening 20 and on the surface of the front lower plate portion 230 facing the opening 20. The columns of grooves 2a and the columns of grooves 2b are juxtaposed left and right. The grooves 2a and the grooves 2b extend in the front-rear direction, respectively.

[0044] The inner housing 31 is in the shape of a box with an opening 30. As Figure 3 shown in (C), columns of holes 3c and columns of holes 3d are provided at the rear side portion of the opening 30 in the inner housing 31. The columns of holes 3c and the columns of holes 3d are divided into upper and lower parts and are juxtaposed left and right. The holes 3c and the holes 3d extend in the front-rear direction, respectively.

[0045] The inner housing 31 is received and fixed in the cavity portion 23 of the outer housing 21. As Figure 2 shown in (D) and Figure 2 shown in (E), the opening 20 of the outer housing 21 and the opening 30 of the inner housing 31 communicate with each other. A slot 6 is formed through the opening 20 and the opening 30.

[0046] As Figure 2 shown in (F), the front-rear dimensions of the first contact piece 1a, the second contact piece 1b, the third contact piece 1c, and the fourth contact piece 1d decrease in the order of the first contact piece 1a > the second contact piece 1b > the third contact piece 1c > the fourth contact piece 1d.

[0047] The first contact piece 1a has: a front-end side contact portion 11a that is bent in an "E" shape; a straight portion 12a that extends obliquely upward and rearward from the rear end of the front-end side contact portion 11a; a straight portion 13a that extends rearward from the rear end of the straight portion 12a; a straight portion 14a that extends obliquely upward and rearward from the rear end of the straight portion 13a; a straight portion 15a that extends rearward from the rear end of the straight portion 14a; a straight portion 16a that extends downward from the rear end of the straight portion 15a; and a substrate side contact portion 17a that extends rearward from the lower end of the straight portion 16a.

[0048] The second contact piece 1b has: a front-end side contact portion 11b that is bent in an "E" shape; a straight portion 12b that extends obliquely downward and rearward from the rear end of the front-end side contact portion 11b; a straight portion 13b that extends rearward from the rear end of the straight portion 12b; a straight portion 14b that extends downward from the rear end of the straight portion 13b; a straight portion 15b that extends rearward from the rear end of the straight portion 14b; a straight portion 16b that extends downward from the rear end of the straight portion 15b; and a substrate side contact portion 17b that extends rearward from the lower end of the straight portion 16b.

[0049] The third contact piece 1c has: a front-end side contact portion 11c that is bent in an "E" shape; a straight portion 12c that extends obliquely upward and rearward from the rear end of the front-end side contact portion 11c; a straight portion 15c that extends rearward from the rear end of the straight portion 12c; a straight portion 16c that extends downward from the rear end of the straight portion 15c; and a substrate side contact portion 17c that extends rearward from the lower end of the straight portion 16c.

[0050] The fourth contact piece 1d has: a front-end side contact portion 11d that is bent in an "E" shape; a straight portion 12d that extends obliquely downward and rearward from the rear end of the front-end side contact portion 11d; a straight portion 15d that extends rearward from the rear end of the straight portion 12d; a straight portion 16d that extends downward from the rear end of the straight portion 15d; and a substrate side contact portion 17d that extends rearward from the lower end of the straight portion 16d.

[0051] The first contact piece 1a and the second contact piece 1b are supported by the outer housing 21 in such a manner that the front-end side contact portions 11a and 11b are exposed on the front side of the slot 6. The straight portion 13a of the first contact piece 1a is press-fitted into the groove 2a, and the straight portion 13b of the second contact piece 1b is press-fitted into the groove 2b.

[0052] The third contact piece 1c and the fourth contact piece 1d are supported by the inner housing 31 in such a manner that the front-end side contact portions 11c and 11d are exposed on the rear side of the slot 6. The straight portion 15c of the third contact piece 1c is inserted into the hole 3c, and the straight portion 15d of the fourth contact piece 1d is inserted into the hole 3d.

[0053] The substrate side contact portion 17a of the first contact piece 1a, the substrate side contact portion 17b of the second contact piece 1b, the substrate side contact portion 17c of the third contact piece 1c, and the substrate side contact portion 17d of the fourth contact piece 1d are exposed on the lower side of the opening 29. The substrate side contact portion 17a, the substrate side contact portion 17b, the substrate side contact portion 17c, and the substrate side contact portion 17d are separated from each other at the same interval in the front-rear direction.

[0054] When the high-speed transmission connector 8 is mounted on the electronic substrate, the substrate-side contact portions 17a, 17b, 17c, and 17d come into contact with the pads of the electronic substrate. When the socket 6 of the high-speed transmission connector 8 is fitted to the head portion 90 of the optical transceiver 9, the front-end side contact portions 11a, 11b, 11c, and 11d of the high-speed transmission connector 8 come into contact with the pads PADa, PADb, PADc, and PADd of the optical transceiver 9.

[0055] As Figure 4 shown, the metal member 7 is formed by bending a rectangular metal plate at the ridge lines in four locations. The metal member 7 has: a lateral plate portion 72 that extends along the Z direction; a longitudinal plate portion 74 that bends and extends downward from both ends of the lateral plate portion 72; and a return portion 73 that bends and extends inward from the lower end of the longitudinal plate portion 74.

[0056] As Figure 1 in (A) of Figure 2 in (B) of Figure 2 in (C) of Figure 3 and (B) of

[0057] shown, the metal member 7 is fitted in the recess 225 of the outer housing 21. The metal member 7 supports the front upper plate portion 220 and the front lower plate portion 230 of the outer housing 21 and fastens the front upper plate portion 220 and the front lower plate portion 230. The boundary portion between the lateral plate portion 72 and the return portion 73 of the metal member 7 abuts against the convex portion 226. The return portion 73 of the metal member 7 wraps around to the inside of the convex portion 226 and supports the convex portion 226 from below. A gap having substantially the same thickness as the metal member 7 is formed between the return portion 73 and the circuit board on which the high-speed transmission connector 8 is mounted.

[0058] <Second Embodiment>

[0059] Next, a second embodiment of the present invention will be described. In the above-described first embodiment, the depths of the recesses 225 on the upper surface and the side surfaces of the outer housing 21 are substantially the same, and the depth of the recess 225 on the lower surface is deeper than the depths of the recesses 225 on the upper surface and the side surfaces. In contrast, as shown in (B) of Figure 7 and (C) of Figure 7 , in the high-speed transmission connector 8A of the present embodiment, the depths of the recesses 225 on the upper surface, the side surfaces, and the lower surface of the outer housing 21 are substantially the same. As shown in (C) of Figure 8 , in a state where the metal member 7 is inserted into the recess 225, the lower surface of the return portion 73 of the metal member 7 forms a solder joint 70 with the circuit board. According to the present embodiment, the bonding strength between the high-speed transmission connector 8A and the circuit board can be further improved by the metal member 7.

[0060] <Third Embodiment>

[0061] Next, a third embodiment of the present invention will be described. In the above-described first embodiment, the housing of the high-speed transmission connector 8 is formed by the outer housing 21 and the inner housing 31. In contrast, as shown in Figure 9 , in the high-speed transmission connector 8B of the present embodiment, the outer housing 21 is divided into an upper housing 21a and a lower housing 21b, and recesses 225 for fitting the metal member 7 are formed in portions of the upper housing 21a and the lower housing 21b that surround the slot 6. The recess 225 is formed by recessing a portion that extends from the upper surface of the upper housing 21a across one side surface of the upper housing 21a, one side surface of the lower housing 21b, and the lower surface of the lower housing 21b. The upper housing 21a, the lower housing 21b, and the inner housing 31 are combined such that the upper housing 21a and the lower housing 21b are aligned vertically, and the inner housing 31 is housed in the upper housing 21a and the lower housing 21b.

[0062] Here, since the head portion 90 of the optical transceiver 9 inserted into the slot 6 of the high-speed transmission connector 8B reaches the opening 30 of the inner housing 31, the upper and lower portions of the opening 30 in the inner housing 31 bulge outward and press the upper housing 21a and the lower housing 21b. In the present embodiment, the metal member 7 functions to reinforce the connection between the upper housing 21a and the lower housing 21b, and it is difficult for the upper housing 21a and the lower housing 21b to separate.

[0063] <Fourth Embodiment>

[0064] Next, a fourth embodiment of the present invention will be described. In the above-described first embodiment, the metal member 7 is formed by bending a single rectangular metal plate. In contrast, as shown in Figure 12 , Figure 13, Figure 14 , Figure 15 of (A), Figure 15 of (B), Figure 15 of (C), and Figure 15 of (D) as shown, the second metal component 7C of the high-speed transmission connector 8C of the present embodiment has: a lateral plate portion extending along the Z direction 72; a longitudinal plate portion 74 bent and extending downward from both ends of the lateral plate portion 72; a return portion 73 bent and extending inward from the lower end of the longitudinal plate portion 74; a protruding portion 75 protruding forward from the front end edge of the longitudinal plate portion 74; a second longitudinal plate portion 76 extending downward from the front end of the protruding portion 75; and a second return portion 77 bent and extending inward from the lower end of the second longitudinal plate portion 76.

[0065] In addition, as shown in Figure 13 and Figure 14 , the intersection of the front side surface and the lower surface of the recess 225 of the lower housing 21b is recessed as a second recess 227. A second convex portion 228 protruding downward is provided at a portion of the recess 225 that wraps around from one side surface of the lower housing 21b to the lower surface. The second return portion 77 of the metal component 7 wraps around the inside of the second convex portion 228 and supports the second convex portion 228 from below. In addition, a portion between the recess 225 and the second recess 227 in one side surface of the upper housing 21a and one side surface of the lower housing 21b projects outward as a third convex portion 229. The third convex portion 229 is fitted in a portion surrounded by the longitudinal plate portion 74, the protruding portion 75, and the second longitudinal plate portion 76. According to the present embodiment, the strength of the upper and lower portions of the slot 6 in the housing of the high-speed transmission connector 8C can be further improved.

[0066] The above describes the embodiments of the present invention, but the following modifications can also be added to the embodiments.

[0067] (1) It can also be configured to divide the outer housing 21 in the above-described second embodiment, as in the upper housing 21a and the lower housing 21b of the third embodiment or the upper housing 21a and the lower housing 21b of the fourth embodiment.

[0068] (2) The lower surface of the return portion 73 or the second return portion 77 of the metal component 7 in the above-described third embodiment and fourth embodiment can also be made into a joint portion 70 as in the second embodiment.

Claims

1. A connector for high-speed transmission, characterized in that, Comprising: A housing having: a slot for fitting the head of a communication object; and an upper plate portion and a lower plate portion that face each other vertically with the slot therebetween. A row of front side contacts supported by the housing such that the contact portions are exposed at the front side within the slot. A row of rear side contacts supported by the housing such that the contact portions are exposed at the rear side within the slot. And A metal member that supports and fastens the upper plate portion and the lower plate portion. The contact portions of the row of rear side contacts are disposed more inwardly within the slot than the contact portions of the row of front side contacts. The metal member is configured to fasten the upper plate portion and the lower plate portion between the contact portions of the row of front side contacts and the contact portions of the row of rear side contacts.

2. The high-speed transmission connector according to claim 1, wherein The metal member has a shape formed by bending a single metal plate.

3. The high-speed transmission connector according to claim 2, wherein The metal member has: a lateral plate portion extending along one direction; longitudinal plate portions bent and extending downward from both ends of the lateral plate portion; and return portions bent and extending inward from the lower ends of the longitudinal plate portions.

4. The high-speed transmission connector according to claim 3, wherein On the housing, there is provided a recess that recesses a portion from the upper surface via the side surface to the lower surface of the housing, and a convex portion protruding downward is provided at a portion that wraps around from one side of the side surface to one side of the lower surface within the recess. The return portion supports the convex portion from below.

5. The high-speed transmission connector according to claim 2, wherein The metal member has: a lateral plate portion extending along one direction; longitudinal plate portions bent and extending downward from both ends of the lateral plate portion; return portions bent and extending inward from the lower ends of the longitudinal plate portions; protruding portions protruding forward from the front end edges of the longitudinal plate portions; second longitudinal plate portions extending downward from the front ends of the protruding portions; and second return portions bent and extending inward from the lower ends of the second longitudinal plate portions.

6. The high-speed transmission connector according to claim 5, wherein On the housing, there are provided: a recess formed by recessing a portion from the upper surface via the side surface to the lower surface of the housing; and a second recess formed by recessing an intersection portion of the side surface and the lower surface in the front side of the recess. A convex portion protruding downward is provided at a portion that wraps around from one side of the side surface to one side of the lower surface within the recess. A second convex portion protruding downward is provided at a portion that wraps around from one side of the side surface to one side of the lower surface within the second recess. The return portion supports the convex portion from below. The second return portion supports the second convex portion from below.

7. The high-speed transmission connector according to claim 6, wherein A portion between the recess and the second recess on one side surface of the housing protrudes outward as a third convex portion. The portion enclosed by the longitudinal plate portion, the protruding portion, and the second longitudinal plate portion is fitted with the third convex portion.

8. The high-speed transmission connector according to claim 3 or 5, wherein A bonding portion for soldering to a circuit board is formed through the lower surface of the return portion.

9. The high-speed transmission connector according to claim 1, wherein The housing has an upper housing, a lower housing, and an inner housing, The upper housing, the lower housing, and the inner housing are combined such that the upper housing and the lower housing are opposed to each other with a gap therebetween in the vertical direction, and the inner housing is accommodated in the upper housing and the lower housing. A recess for fitting the metal component is formed in a portion of the upper housing and the lower housing that surrounds the slot.

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