TWM618268U - Board-to-board bridge connector and connector assembly - Google Patents

Abstract

The application discloses a board-to-board bridge connector and a connector assembly. The board-to-board bridge connector includes an insulating body, a plurality of signal terminals, and a metal shell. The insulating body has a first surface and a second surface opposite to each other. The side surface between the surface and the second surface, the first surface and the second surface are located in the first direction; the plurality of signal terminals are arranged on the insulating body at intervals along the second direction orthogonal to the first direction and exposed from the first surface; The metal shell is arranged on one side of the insulating body, and the metal shell is located on one side of the second surface and the side surface of the insulating body. The metal shells have a plurality of grounding elements. One side of the side surface in the third direction orthogonal to the second direction.

Description

Board-to-board bridge connector and connector assembly

This application relates to the technical field applied to connectors, and in particular to a board-to-board bridge connector and a connector assembly.

The current board-to-board connector usually includes two connectors and a connecting circuit board. The connecting circuit board is connected to the two connectors. The connecting circuit board can be a soft board or a hard board. When the board-to-board connector is used, the terminals of the two connectors of the board-to-board connector are respectively contacted or welded with the contact pads of the two circuit boards, and the board-to-board connectors are respectively locked with the two circuit boards through screws. However, the current board-to-board connector is grounded without a special grounding member to connect to the two circuit boards, which also means that the board-to-board connector is susceptible to electromagnetic interference during signal transmission, which affects the signal transmission performance of the board-to-board connector.

The embodiments of the present application provide a board-to-board bridge connector and connector assembly to solve the problem of poor signal transmission performance of the existing board-to-board connector.

In order to solve the above technical problems, this application is implemented as follows:

In one embodiment, a board-to-board bridge connector is provided, including: an insulating body having a first surface and a second surface opposite to each other and a side surface located between the first surface and the second surface, the first surface and the second surface The second surface is located in the first direction; the plurality of signal terminals are arranged on the insulating body at intervals along the second direction orthogonal to the first direction and exposed from the first surface; and the metal shell is arranged on one side of the insulating body, and the metal The housing is located on one side of the second surface and the side surface of the insulating body, the metal housings have a plurality of grounding elements, and the grounding elements are located on the side of the insulating body in the third direction orthogonal to the first direction and the second direction. One side of the surface.

In another embodiment, a connector assembly is provided, including: the board-to-board bridge connector as in the above-mentioned embodiment; a mother circuit board having a plurality of first signal contact pads and first ground contact pads, the first signal The contact pads are arranged at intervals along the second direction, the first ground contact pads are arranged on one side of the first signal contact pads; and the sub-circuit board has a plurality of second signal contact pads and second ground contact pads, the second The signal contact pads are arranged at intervals along the second direction, and the second ground contact pads are arranged on one side of the second signal contact pads; wherein, when the board-to-board bridge connector is arranged on the mother circuit board and the daughter circuit board, the signal The terminals are respectively contact-connected with the first signal contact pads and the second signal contact pads, and the ground elements are contact-connected with the first ground contact pads and the second ground contact pads, respectively.

In yet another embodiment, a connector assembly is provided, including: a two-board-to-board bridge connector as in the above-mentioned embodiment; a mother circuit board having a plurality of first signals on two opposite surfaces in a first direction Contact pads and first ground contact pads, the first signal contact pads are arranged at intervals along the second direction, the first ground contact pads are arranged on one side of the first signal contact pads; and the sub-circuit board, which is on the first Two opposite surfaces in the direction have a plurality of second signal contact pads and second ground contact pads respectively, the second signal contact pads are arranged at intervals along the second direction, and the second ground contact pads are arranged on the second signal contact pads Wherein, when the two board-to-board bridge connectors are respectively arranged on the side of the two opposite surfaces of the mother circuit board and the daughter circuit board in the first direction, the signal terminals are in contact with the first signals The pads and the second signal contact pads are in contact and connection, and the ground elements are respectively in contact and connection with the first ground contact pad and the second ground contact pad.

In the embodiment of the present application, by arranging the grounding parts on the two opposite sides of the metal shell, when the board-to-board bridge connector is connected to the mother circuit board and the daughter circuit board, the grounding parts and the mother circuit board The first ground contact pad and the second ground contact pad of the sub-circuit board, so that the metal shells, the mother circuit board and the sub-circuit board electromagnetically shield the signal terminals to prevent the board-to-board bridge connector from performing signal transmission Subject to electromagnetic interference, effectively improve the signal transmission performance of the board-to-board bridge connector. The signal terminals of the present application are in contact and connected with the first signal contact pads of the mother circuit board and the second signal contact pads of the sub-circuit board, effectively avoiding problems such as false soldering or uneven solder distribution due to soldering. Affect the signal transmission performance of the board-to-board bridge connector.

The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without making progressive labor fall within the protection scope of this application.

Please refer to Figure 1, Figure 2, Figure 3 and Figure 4, which are a perspective view, an exploded view and a cross-sectional view along the line A-A' in Figure 1 of the board-to-board bridge connector of the first embodiment of the present application; , The board-to-board bridge connector 1 includes an insulating body 10, a plurality of signal terminals 11, and a metal shell 12. The insulating body 10 has a first surface 10a and a second surface 10b opposite to each other and a portion located on the first surface 10a and the second surface 10b. Between the side surface 10c, the first surface 10a and the second surface 10b are located in the first direction Z. The signal terminals 11 are arranged on the insulating body 10 at intervals along the second direction X and are exposed from the first surface 10a. The metal shell 12 is disposed on one side of the insulating body 10, and the metal shell 12 is located on one side of the second surface 10 b and the side surface 10 c of the insulating body 10.

The first surface 10a of the insulating body 10 of this embodiment has a plurality of first grooves 101 and a plurality of second grooves 102, and the first grooves 101 and the second grooves 102 are respectively arranged at intervals along the second direction X On the first surface 10a, the first grooves 101 are arranged on one side of the second grooves 102, and the first grooves 101 correspond to the second grooves 102 one by one, respectively. The signal terminals 11 respectively have a signal connection portion 111, a first signal contact end portion 112, and a second signal contact end portion 113. The first signal contact end portion 112 and the second signal contact end portion 113 are disposed on the signal connection portion 111. On both sides, the signal connection portions 111 of the signal terminals 11 are respectively disposed in the insulating body 10 between the first grooves 101 and the second grooves 102, and the first signal contacts of the signal terminals 11 The end portions 112 are respectively located in the first grooves 101, and the second signal contact end portions 113 of the signal terminals 11 are respectively located in the second grooves 102. The first signal contact end portion 112 and the second signal contact end portion 113 of the signal terminals 11 of this embodiment extend along the third direction Y orthogonal to the first direction Z and the second direction X, and the signal terminals 11 The first signal contact end 112 and the second signal contact end 113 of the signal terminals 11 are substantially parallel to the horizontal direction. The first signal contact ends 112 of the signal terminals 11 respectively have first signal contact protrusions 1121. The signal terminals The second signal contact ends 113 of 11 respectively have second signal contact protrusions 1131. The first signal contact protrusions 1121 and the second signal contact protrusions 1131 of the signal terminals 11 are along the first direction Z and away from the insulating body The direction of 10 protrudes.

The metal shell 12 of this embodiment has a top plate 121, a plurality of side plates 122, and a plurality of grounding members 123. The side plates 122 are arranged at intervals along the periphery of the top plate 121. The grounding members 123 are arranged on the top plate 121 in the third direction Y and opposite to each other. The grounding elements 123 are located between the two adjacent side plates 122 on the two sides. When the metal shell 12 is assembled on the insulating body 10, the top plate 121 is arranged on one side of the second surface 10b of the insulating body 10, the side plates 122 are arranged on one side of the side surface 10c of the insulating body 10, and the grounding pieces 123 is located on one side of the side surface 10c of the insulating body 10 in the third direction Y, and one end of the grounding members 123 away from the top plate 121 protrudes from the first surface 10a of the insulating body 10. Specifically, the grounding members 123 have a grounding elastic arm 1231 and a grounding contact protrusion 1232. One end of the grounding elastic arm 1231 is connected to the top plate 121, and the grounding contact protrusion 1232 is disposed at an end of the grounding elastic arm 1231 away from the top plate 121 and connected. The ground contact protrusion 1232 protrudes from the first surface 10 a of the insulating body 10.

Please refer to FIGS. 5, 6 and 7, which are a perspective view, an exploded view and a cross-sectional view along the line B-B' in FIG. 5 of the connector assembly of the second embodiment of the present application; as shown, this embodiment The connector assembly 2 includes a board-to-board bridge connector 1, a mother circuit board 21 and a daughter circuit board 22. The board-to-board bridge connector 1 uses the board-to-board bridge connector of the first embodiment, and the mother circuit board 21 has A plurality of first signal contact pads 211 and first ground contact pads 212, the first signal contact pads 211 are arranged at intervals along the second direction X, and the first ground contact pads 212 are arranged on one side of the first signal contact pads 211 In this embodiment, the first ground contact pads 212 are C-shaped, and the first ground contact pads 212 are arranged around the first signal contact pads 211. The sub-circuit board 22 has a plurality of second signal contact pads 221 and second ground contact pads 222, the second signal contact pads 221 are arranged at intervals along the second direction X, and the second ground contact pads 222 are arranged on the second signal contacts On one side of the pad 221, in this embodiment, the second ground contact pad 222 is C-shaped, and the second ground contact pad 222 is arranged around the second signal contact pads 221. The thickness of the mother circuit board 21 and the daughter circuit board 22 in the first direction Z of this embodiment are the same, the mother circuit board 21 and the daughter circuit board 22 are located on the same horizontal plane, and the mother circuit board 21 has the first signal contact pads The surfaces of the 211 and the first ground contact pad 212 and the sub-circuit board 22 having the second signal contact pads 221 and the second ground contact pad 222 are located on the same horizontal plane. When the board-to-board bridge connector 1 is disposed on the mother circuit board 21 and the daughter circuit board 22, the first signal contact protrusions 1121 of the signal terminals 11 of the board-to-board bridge connector 1 are respectively connected to the first signal The contact pads 211 are in contact and connected, the second signal contact protrusions 1131 of the signal terminals 11 of the board-to-board bridge connector 1 are in contact with the second signal contact pads 221, and the board-to-board bridge connectors 1 The ground contact protrusions 1232 of the ground member 123 are respectively in contact with the first ground contact pad 212 and the second ground contact pad 222.

The signal terminals 11 of this embodiment are formed by a bending process. The signal terminals 11 have good flexibility. The signal terminals 11 do not need to contact the first signal contact pads 211 and the daughter circuit boards of the mother circuit board 21. The second signal contact pads 221 of 22 are welded and fixed, which can also ensure that the first signal contact protrusions 1121 and the second signal contact protrusions 1131 of the signal terminals 11 can be respectively connected to the first signal contacts of the mother circuit board 21. The contact pads 211 and the second signal contact pads 221 of the sub-circuit board 22 are in contact and connection. When the board-to-board bridge connector 1 is excessively squeezed, the signal terminals 11 have good elasticity, which prevents the signal terminals 11 from excessively squeezing the mother circuit board 21 and the daughter circuit board 22 to cause the mother circuit board 21 and The sub circuit board 22 is damaged.

In addition, the metal shell 12 of this embodiment is in contact with the first ground contact pad 212 of the mother circuit board 21 and the second ground contact pad 222 of the sub-circuit board 22 through the ground members 123, so as to be located in the metal shell by electromagnetic shielding. 12. The signal terminals 11 and the first signal contact pads 211 and the second signal contact pads 221 connected to the signal terminals 11 between the mother circuit board 21 and the daughter circuit board 22, so as to avoid contact The connected signal terminals 11, the first signal contact pads 211, and the second signal contact pads 221 have electromagnetic interference problems during signal transmission. The board-to-board bridge connector 1 of this embodiment has good performance The electromagnetic shielding effect improves the signal transmission performance of the board-to-board bridge connector 1.

As shown in Figures 2, 3, and 5, the board-to-board bridge connector 1 of this embodiment further includes a plurality of power terminals 13, which are disposed on the insulating body 10 and exposed from the first surface 10a. The power terminals 13 are located at the two ends or/and the middle of the insulating body 10. In this embodiment, the first surface 10a of the insulating body 10 further has a plurality of third grooves 103, and the power terminals 13 are respectively disposed in the third grooves 103. The power terminals 13 of this embodiment respectively have a power connection portion 131 and a plurality of power contact end portions 132. The power contact end portions 132 are respectively disposed at two ends of the power connection portion 131, and the power contact end portions 132 are along the first Extend in three directions Y. The power contact ends 132 each have a power contact protrusion 1321, which extends along the first direction Z and protrudes from the first surface 10a of the insulating body 10. In this way, the board-to-board bridge connector 1 is suitable for large Power demand. The mother circuit board 21 has a plurality of first power contact pads 213, and the daughter circuit board 22 has a plurality of second power contact pads 223. When the board-to-board bridge connector 1 is disposed on the mother circuit board 21 and the daughter circuit board 22, these The power contact protrusions 1321 of the power terminal 13 are respectively in contact with the first power contact pads 213 of the mother circuit board 21 and the second power contact pads 223 of the daughter circuit board 22.

The insulating body 10 of this embodiment has two first fixing through holes 104 and a first side 10d and a second side 10e opposite to each other in the third direction Y. The two first fixing through holes 104 are located at two ends of the insulating body 10. The two first fixing holes 104 are respectively close to the first side 10d and the second side 10e. In other words, the two first fixing holes 104 are arranged diagonally. The metal housing 12 has two second fixing through holes 124, and the two second fixing through holes 124 correspond to the two first fixing through holes 104 respectively, so the two second fixing through holes 124 are located at the two ends of the metal housing 12, and the two second fixing through holes 124 Diagonally arranged, the two second fixing holes 124 are respectively close to the first side 10d and the second side 10e. One end of the mother circuit board 21 has a third fixing hole 214 corresponding to the first fixing hole 104 and the second fixing hole 124 near the first side 10d. One end of the sub-circuit board 22 has a fourth fixing hole 224. The fourth fixing hole 224 corresponds to the first fixing hole 104 and the second fixing hole 124 close to the second side 10e. The fourth fixing hole 224 of the sub-circuit board 22 corresponds to The third fixing through holes 214 of the mother circuit board 21 are arranged diagonally. Because the board-to-board bridge connector 1 of this embodiment is fixed to the mother circuit board 21 and the daughter circuit board 22 by locking, the signal terminals 11 of this embodiment do not need to be soldered to the mother circuit board 21 and the daughter circuit board 22 Connection, so as to avoid the problem of false soldering or uneven soldering caused by soldering and affecting the overall signal transmission performance.

The connector assembly 2 of this embodiment further includes two locking members 23. One of the two locking members 23 respectively penetrates the corresponding second fixing through hole 124, the first fixing hole 104, and the third fixing hole 214 to fix the insulating body 10, The metal casing 12 and the mother circuit board 21, and the other of the two locking members 23 respectively pass through the corresponding second fixing through holes 124, the first fixing through holes 104 and the fourth fixing through holes 224 to fix the insulating body 10 and the metal casing 12 And sub-circuit board 22. The locking member 23 of this embodiment is composed of screws and nuts. The material of the second locking member 23 of this embodiment can be an insulating material (such as plastic) or a conductive material (such as metal). If the material of the second locking member 23 is a conductive material, the third fixing of the mother circuit board 21 of this embodiment is The through hole 214 penetrates the first ground contact pad 212, the fourth fixed through hole 224 of the sub-circuit board 22 penetrates the second ground contact pad 222, one of the two locking members 23 is connected to the metal shell 12 and the first ground contact pad of the mother circuit board 21 The other of the 212 connection and the second locking member 23 is connected to the metal shell 12 and the second ground contact pad 222 of the sub-circuit board 22 to achieve the grounding effect, thereby increasing the electromagnetic shielding effect of the board-to-board bridge connector 1, and Improve the signal transmission performance of the board-to-board bridge connector 1.

The first surface 10a of the insulating body 10 of this embodiment further has two positioning posts 105, the two positioning posts 105 are located at two ends of the insulating body 10, and the two positioning posts 105 are respectively close to the first side 10d and the second side 10e, In other words, the two positioning posts 105 are arranged diagonally. The mother circuit board 21 has a first positioning hole 215 at one end, and the daughter circuit board 22 has a second positioning hole 225 at an end away from the first positioning hole 215. When the board-to-board bridge connector 1 is disposed on the mother circuit board 21 and the daughter circuit board 22, the two positioning posts 105 respectively pass through the first positioning hole 215 of the mother circuit board 21 and the second positioning hole 225 of the daughter circuit board 22 , To pre-locate the position of the board-to-board bridge connector 1 on the mother circuit board 21 and the daughter circuit board 22 to ensure that the signal terminals 11 and the grounding members 123 can be accurately aligned with the first ones of the mother circuit board 21 The signal contact pads 211 and the first ground contact pads 212 and the second signal contact pads 221 and the second ground contact pads 222 of the sub-circuit board 22 are in contact and connected to facilitate subsequent fixing operations.

The first side 10d and the second side 10e of the insulating body 10 of this embodiment respectively further have a plurality of pillars 106. The pillars 106 are arranged at intervals along the second direction X and extend along the third direction Y. The body 106 is connected to the side plates 122 respectively. The side plates 122 respectively have a recess 1221 and a retaining protrusion 1222. The retaining protrusion 1222 is located in the recess 1221 and extends along the first direction Z. The pillars 106 respectively have holding holes 1061. When the insulating body 10 is assembled to the metal housing 12, the pillars 106 are respectively disposed in the recesses 1221 of the side plates 122. The holding protrusions of the side plates 122 1222 respectively pass through the holding holes 1061 of the pillars 106, so that the stable connection between the insulating body 10 and the metal casing 12 can be increased.

In this embodiment, the first side 10d and the second side 10e of the insulating body 10 further have protruding ribs 107, and the protruding ribs 107 extend along the third direction Y. The metal shell 12 also has protrusions 125 on the third direction Y and on two opposite sides, respectively. The protrusions 125 extend along the third direction Y and cover the second surface 10b and the side surface 10c of the corresponding rib 107. Increase the structural strength of the insulating body 10 and the metal shell 12.

Please refer to FIGS. 8, 9 and 10, which are a perspective view, an exploded view and a cross-sectional view along the line C-C' in FIG. 8 of the connector assembly of the third embodiment of the present application; as shown in the figure, the connection of this embodiment The connector assembly 2 includes a two-board-to-board bridge connector 1, a mother circuit board 21, and a daughter circuit board 22. The two-board-to-board bridge connector 1 uses the board-to-board bridge connector of the first embodiment, and the mother circuit board 21 is in the first embodiment. Two opposite surfaces in a direction Z respectively have a plurality of first signal contact pads 211 and first ground contact pads 212, the first signal contact pads 211 are arranged at intervals along the second direction X, and the first ground contact pads 212 are arranged on On one side of the first signal contact pads 211, in this embodiment, the first ground contact pads 212 are C-shaped, and the first ground contact pads 212 are arranged around the first signal contact pads 211. The sub-circuit board 22 has a plurality of second signal contact pads 221 and second ground contact pads 222 on two opposite surfaces in the first direction Z. The second signal contact pads 221 are spaced apart along the second direction X. The ground contact pad 222 is disposed on one side of the second signal contact pads 221. When the two board-to-board bridge connectors 1 are respectively disposed on one side of the two opposite surfaces of the mother circuit board 21 and the daughter circuit board 22 in the first direction Z, the signal terminals 11 of the two board-to-board bridge connectors 1 The first contact protrusions 1121 are respectively in contact with the first signal contact pads 211, and the second signal contact protrusions 1131 of the signal terminals 11 of the two-board-to-board bridge connector 1 are respectively in contact with the second signals The pads 221 are in contact connection, and the ground contact protrusions 1232 of the ground members 123 of the two-board-to-board bridge connector 1 are in contact with the first ground contact pad 212 and the second ground contact pad 222 respectively.

If there is a demand for high power, the mother circuit board 21 has a plurality of first power contact pads 213 in the first direction Z and two opposite surfaces respectively, and the daughter circuit board 22 has a plurality of first power contact pads 213 in the first direction Z and two opposite surfaces respectively A plurality of second power contact pads 223, the power contact protrusions 1321 of the power terminals 13 of the two-board-to-board bridge connector 1 and the first power contact pads 213 of the mother circuit board 21 and the daughter circuit board 22 respectively These second power contact pads 223 are in contact and connected.

To sum up, by arranging the grounding parts on the two opposite sides of the metal shell, when the board-to-board bridge connector is connected to the mother circuit board and the daughter circuit board, the grounding parts are connected to the first circuit board of the mother circuit board. The ground contact pad and the second ground contact pad of the sub-circuit board, so that the metal shells, the mother circuit board and the sub-circuit board electromagnetically shield the signal terminals to prevent the board-to-board bridge connector from being electromagnetically exposed to the signal transmission Interference, effectively improve the signal transmission performance of the board-to-board bridge connector.

In addition, the signal terminals of the present application are in contact with the first signal contact pads of the mother circuit board and the second signal contact pads of the daughter circuit board, effectively avoiding problems such as false soldering or uneven solder distribution due to soldering. , To avoid affecting the signal transmission performance of the board-to-board bridge connector.

Furthermore, the signal terminals of the present application are formed through a bending process and extend in a horizontal direction. Therefore, the signal terminals of the present application have good elasticity, which can ensure that the signal terminals can be connected to the mother circuit board. The contact between the first signal contact pads and the second signal contact pads of the daughter circuit board can also prevent the signal terminals from squeezing the mother circuit board and the daughter circuit board to damage the mother circuit board and the daughter circuit board.

1: Board-to-board bridge connector 10: Insulating body 10a: first surface 10b: second surface 10c: side surface 10d: first side 10e: second side 101: The first groove 102: second groove 103: third groove 104: The first fixed perforation 105: positioning column 106: Cylinder 1061: holding hole 107: Convex Rib 11: Signal terminal 111: Signal connection part 112: First signal contact end 1121: The first signal contacts the convex part 113: The second signal contact end 1131: The second signal contacts the convex part 12: Metal shell 121: top plate 122: side panel 1221: Notch 1222: holding boss 123: Grounding piece 1231: Ground elastic arm 1232: Ground contact protrusion 124: Second fixed perforation 125: Convex 13: Power terminal 131: Power connection 132: Power contact end 1321: Power contact protrusion 2: Connector assembly 21: Mother circuit board 211: The first signal contact pad 212: first ground contact pad 213: The first power contact pad 214: Third fixed perforation 215: The first positioning hole 22: Sub-circuit board 221: The second signal contact pad 222: second ground contact pad 223: second power contact pad 224: Fourth fixed perforation 225: second positioning hole 23: lock firmware Z: first direction X: second direction Y: Third party

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the schema: Figure 1 is a perspective view of a board-to-board bridge connector according to a first embodiment of the present application; Figure 2 is another perspective view of the board-to-board bridge connector of the first embodiment of the present application; Figure 3 is an exploded view of the board-to-board bridge connector of the first embodiment of the present application; Figure 4 is a cross-sectional view taken along the line A-A' in Figure 1; Figure 5 is a perspective view of a connector assembly according to a second embodiment of the present application; Figure 6 is an exploded view of the connector assembly of the second embodiment of the present application; Figure 7 is a cross-sectional view taken along the line B-B' in Figure 5; Figure 8 is a perspective view of a connector assembly according to a third embodiment of the present application; Figure 9 is an exploded view of the connector assembly of the third embodiment of the present application; and Fig. 10 is a cross-sectional view taken along the line C-C' in Fig. 8.

1: Board-to-board bridge connector

10b: second surface

10c: side surface

12: Metal shell

121: top plate

122: side panel

123: Grounding piece

1231: Ground elastic arm

1232: Ground contact protrusion

Z: first direction

X: second direction

Y: Third party

Claims (14)

A board-to-board bridge connector, including: An insulating body having a first surface and a second surface opposite to each other and a side surface between the first surface and the second surface, the first surface and the second surface are located in a first direction; A plurality of signal terminals are arranged at intervals on the insulating body along a second direction orthogonal to the first direction and exposed from the first surface; and A metal shell is arranged on one side of the insulating body, the metal shell is located on one side of the second surface and the side surface of the insulating body, the metal shells have a plurality of grounding elements, and the grounding elements are located at The insulating body is on one side of the side surface in a third direction orthogonal to the first direction and the second direction. The board-to-board bridge connector according to claim 1, wherein the signal terminals respectively have a signal connection portion, a first signal contact end portion and a second signal contact end portion, and the first signal contact end portion And the second signal contact end portions are arranged on two sides of the signal connection portion, the first signal contact end portion and the second signal contact end portion extend along the third direction, and the first signal contact ends have A first signal contact protrusion, the second signal contact end has a second signal contact protrusion, the first signal contact protrusion and the second contact protrusion protrude along the first direction. The board-to-board bridge connector according to claim 2, wherein the first surface of the insulating body has a plurality of first grooves and a plurality of second grooves, the first grooves and the second grooves The first grooves are arranged on the first surface at intervals along the second direction, the first grooves are arranged on one side of the second grooves, and the first grooves correspond to the second grooves one by one. , The signal connecting portion of the signal terminals is disposed in the insulating body between the first groove and the second grooves, and the first signal contact end portion and the second signal contact of the signal terminals The ends are respectively located in the first grooves and the second grooves, and the first signal contact protrusions and the second signal contact protrusions of the signal terminals protrude in a direction away from the insulating body. The board-to-board bridge connector according to claim 2, wherein the metal shell further has a top plate and a plurality of side plates, the side plates are arranged at intervals along the periphery of the top plate, and the grounding members are arranged on the top plate at the first On two opposite sides in three directions, the grounding elements are located between two adjacent side plates, the top plate is disposed on one side of the second surface of the insulating body, and the side plates are disposed on the side surface of the insulating body. One side. The board-to-board bridge connector according to claim 4, wherein the grounding members have a ground elastic arm and a ground contact protrusion, one end of the ground elastic arm is connected to the top plate, and the ground contact protrusion is disposed at The grounding elastic arm is connected to one end away from the top plate, and the grounding contact protrusion protrudes from the first surface of the insulating body. A connector assembly, comprising: a board-to-board bridge connector as in claim 1; a mother circuit board having a plurality of first signal contact pads and a first ground contact pad, the first signal contact pads are along the first signal contact pad Are arranged at intervals in two directions, the first ground contact pad is arranged on one side of the first signal contact pads; and a sub-circuit board having a plurality of second signal contact pads and a second ground contact pad, the second signal Contact pads are arranged at intervals along the second direction, and the second ground contact pads are arranged on one side of the second signal contact pads; Wherein, when the board-to-board bridge connector is disposed on the mother circuit board and the daughter circuit board, the signal terminals are in contact with the first signal contact pads and the second signal contact pads, and the grounding elements Respectively contact and connect with the first ground contact pad and the second ground contact pad. The connector assembly according to claim 6, wherein the mother circuit board and the daughter circuit board have the same thickness in the first direction, and the mother circuit board has the first signal contact pads and the first ground contact The surface of the pad and the surface of the sub-circuit board having the second signal contact pads and the second ground contact pad are located on the same horizontal plane. The connector assembly according to claim 6, wherein the board-to-board bridge connector further includes a plurality of power terminals, the power terminals are disposed on the insulating body and exposed from the first surface, and the power terminals are located on the insulating body. At the two ends or/and the middle of the main body, the mother circuit board also has a plurality of first power contact pads, and the daughter circuit board also has a plurality of second power contact pads. The power terminals are connected to the first power contact pads and the first power contact pads. These second power contact pads are connected in contact. The connector assembly according to claim 8, wherein the power supply terminals respectively have a power supply connection portion and a plurality of power supply contact ends, the power supply contact ends are respectively disposed at two ends of the power supply connection portion, and the power supply terminals The contact ends extend along the third direction, the power contact ends respectively have a power contact protrusion, and the power contact protrusion protrudes along the first direction. The connector assembly according to claim 9, wherein the first surface of the insulating body further has a plurality of third grooves, the power terminals are respectively disposed in the third grooves, and the power terminals The power contact protrusion protrudes from the first surface of the insulating body. The connector assembly according to claim 6, wherein the first surface of the insulating body further has two positioning posts, and the insulating body has a first side and a second side opposite to each other in the third direction Side, the two positioning posts are located at two ends of the insulating body, the two positioning posts are respectively close to the first side and the second side, the two positioning posts are arranged diagonally; one end of the mother circuit board has a first A positioning hole, one end of the sub-circuit board away from the first positioning hole has a second positioning hole, and the two positioning posts are respectively arranged in the first positioning hole and the second positioning hole. The connector assembly according to claim 6, wherein the insulating body has a first side and a second side opposite to each other in the third direction, and the first side and the second side of the insulating body The sides also respectively have a plurality of columns, the columns are spaced along the second direction and extend along the third direction; the metal shell also has a top plate and a plurality of side plates, the side plates are spaced along the circumference of the top plate , The columns are respectively connected with the side plates. The connector assembly according to claim 12, wherein the pillars further respectively have holding holes, the side plates respectively have a recess and a holding protrusion located in the recess and extending along the first direction, the The columns are respectively located in the recesses of the side plates, and the holding protrusions of the side plates respectively pass through the holding holes of the columns. A connector assembly, including: two board-to-board bridge connectors as in claim 1; A mother circuit board having a plurality of first signal contact pads and a first ground contact pad on two opposite surfaces in the first direction, the first signal contact pads being spaced apart along the second direction, the first A ground contact pad is arranged on one side of the first signal contact pads; and A sub-circuit board having a plurality of second signal contact pads and a second ground contact pad on two opposite surfaces in the first direction, the second signal contact pads being spaced apart along the second direction, the first Two ground contact pads are arranged on one side of the second signal contact pads; Wherein, when the two board-to-board bridge connectors are respectively disposed on one side of two opposite surfaces of the mother circuit board and the daughter circuit board in the first direction, the signal terminals are in contact with the first signals, respectively The pads and the second signal contact pads are in contact and connection, and the ground elements are respectively in contact and connection with the first ground contact pad and the second ground contact pad.

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