Electric connector and combination thereof

Abstract

An electric connector combination comprises a plate end connector and a wire end connector, the plate end connector comprises a butt joint cavity, a pair of parallel insertion tongues are arranged in an insertion cavity, and fixing terminals are arranged on the two sides of the insertion tongues; the wire end connector comprises a plugging part and a plurality of cables, the plugging part comprises a pair of slots, elastic terminals are arranged on two sides of each slot, the plugging part is in butt joint with the plugging cavity, and the plugging tongues are accommodated in the slots, so that the fixed terminals are electrically connected with the elastic terminals; therefore, the overall height of the connector can be effectively reduced by arranging the insertion tongue on the board end connector and arranging the insertion slot matched with the insertion tongue on the line end connector at the same time.

Description

[Technical field]

[0001] The invention relates to an electric connector combination, comprising a board end connector and a line end connector matched with each other. [Background technology]

[0002] Relevant prior art can be found in US20240030658A1 and US20230283027A1, which disclose that the tongue plate is located in the socket and is a non-cantilever beam structure to reduce the overall mating height.

[0003] Therefore, it is necessary to provide a new electrical connector combination to solve the above problems. [Summary of the invention]

[0004] The object of the present invention is to provide an electrical connector and a combination thereof, which have an improved mating method.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: an electrical connector combination, including a board-end connector and a line-end connector, the board-end connector including a docking cavity, a pair of mutually parallel plug tongues are arranged in the docking cavity, and fixed terminals are arranged on both sides of the plug tongues; the line-end connector includes a plug-in portion and a plurality of cables, the plug-in portion includes a pair of slots, and a row of elastic terminals are arranged on both sides of each of the slots, the plug-in portion is accommodated in the docking cavity, and the plug tongue is plugged into the slot so that the fixed terminal contacts the elastic terminal.

[0006] In order to solve the above technical problems, the present invention can also adopt the following technical solutions: a wire end connector, comprising a base, four rows of elastic terminals and four rows of cables respectively connected to the four rows of elastic terminals, the base comprising a plug-in portion and a pair of slots arranged on the plug-in portion along the longitudinal direction, the elastic terminals are fixed to the base, and a row of elastic terminals are respectively arranged on two opposite inner sides of each of the slots, the elastic terminals comprise elastic arms protruding into the slots and legs extending out of the base, and the cables are connected to the legs.

[0007] In order to solve the above technical problems, the present invention can also adopt the following technical solution: a board-end connector, including an insulating body, a metal shell and two plug tongues, the insulating body including a base and two longitudinal side walls extending upward from the base, the metal shell including a pair of long side plates arranged outside the two side walls and a pair of short side plates located at both ends of the side walls, so that the side walls and the short side plates together enclose a docking cavity, the plug tongue protrudes into the docking cavity and is parallel to the side wall, and a row of fixed terminals are provided on both sides of each of the plug tongues.

[0008] Compared with the prior art, the present invention has the following beneficial effects: the present invention can effectively reduce the overall height of the connector by arranging the plug tongue on the board-end connector and arranging the slot matched with the plug tongue on the line-end connector; in addition, by arranging two or more parallel plug tongues in each board-end connector and setting the number of slots in the line-end connector to corresponding two or more, the connector can transmit more signals within a unit volume, making the connector more miniaturized.

Brief Description of the Drawings

[0009] Figure 1 It is a three-dimensional diagram of the electrical connector assembly of the present invention, wherein the board-end connector is mated with the line-end connector and the board-end connector is mounted on a PCB.

[0010] Figure 2 yes Figure 1 Another perspective view of the CEC connector assembly.

[0011] Figure 3 yes Figure 1 Cross-sectional view of the CEC connector assembly along line AA.

[0012] Figure 4 yes Figure 1 A three-dimensional representation of a CEC connector assembly, in which the board-side connector and the line-side connector are separated from each other.

[0013] Figure 5 This is a three-dimensional diagram of the board-side connector.

[0014] Figure 6 This is a three-dimensional exploded view of the board-side connector.

[0015] Figure 7 yes Figure 6 Further exploded view of the mid-board connector, with one terminal module located Figure 8 middle.

[0016] Figure 8 This is a three-dimensional exploded view of the terminal module.

[0017] Fig. 9 yes Figure 8 A three-dimensional view of the two rows of terminals.

[0018] Fig.10 yes Fig. 9 Another angled stereogram of the two rows of terminals.

[0019] Fig.11 yes Figure 4 Another perspective view of the centerline connector.

[0020] Fig.12 yes Fig.11 Exploded perspective view of the centerline connector.

[0021] Fig.13 yes Fig.12 Another angle stereoscopic image of the terminal module with cables connected.

[0022] Fig.14 yes Fig.13 A further exploded view of the terminal module with cables connected.

[0023]

Component Symbol Description

[0024]

[0025]

[0026] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0027] Please refer to Figure 1-4 As shown, the present invention discloses an electrical connector assembly 1000, including a board-end connector 100 and a line-end connector 200 that are compatible with each other. The board-end connector 100 is installed on a PCB board 300, and the line-end connector 200 is provided with a plurality of cables 63. Figure 5 The board-end connector 100 includes a rectangular mating cavity 101 and a pair of plug tongues 102 located in the mating cavity 101. Each of the two opposite sides of the plug tongue 102 is provided with a row of fixed terminals 22. Fig.11 The line-end connector 200 includes a longitudinal housing, a pair of parallel longitudinal slots 52 are provided in the housing, and a row of elastic terminals 62 are provided on opposite sides of each slot 52. When the line-end connector is inserted into the board-end connector, the plug tongue 102 is inserted into the corresponding slot 52. At this time, the terminals on both sides of the tongue are electrically connected with the terminals in the slot 52, thereby realizing the connection between the board-end connector 100 and the line-end connector 200.

[0028] Please refer to Figure 5-7 As shown, the board-end connector 100 includes an insulating body 10, two terminal modules 20 and a metal shell 30. The insulating body 10 has a base 11 and a pair of long side walls 12 extending upward from opposite sides of the base 11; the metal shell 30 includes four side plates, which are divided into a pair of end side plates 31 and a pair of long side plates 32; the four side plates of the metal shell 30 are closely attached to the outer periphery of the insulating body 10, from Figure 5 As can be seen from the figure, the docking cavity 101 is located between the pair of long side walls 12 and the pair of short side panels 31 .

[0029] Each terminal module 20 includes an insulating strip 21 and two rows of fixed terminals 22 injection molded therein; the insulating strip 1 has a base portion 211 and a tongue plate 212 extending upward from the base portion 211; the fixed terminal 22 includes a plate portion 222 and a pin portion 221, the plate portion 222 is exposed on two opposite sides of the tongue plate 212 as an electrical contact portion, and the pin portion 221 extends from the base portion 211 to connect with the PCB board 300. A pair of retaining grooves 111 are provided at the bottom 11 of the insulating body 10, and two sets of board-end terminal modules 20 are installed into the insulating body 10 from the retaining grooves 111, wherein the base portion 211 interferes with the retaining grooves 111, and the tongue plate 212 protrudes into the docking cavity 101, thereby forming an insertion tongue 102. Specifically, in combination with Figure 7 As shown, a stop block 113, a protrusion 115 and a locking groove 114 are provided in the retaining groove 111; correspondingly, the insulating strip 21 is provided with a stop groove 233 and a locking block 234. When the terminal module 20 is installed in the retaining groove 111, the stop block 113 is received in the stop groove 233, and the locking block 234 is received in the locking groove. The protrusion 115 can enhance the fixation of the base portion 211 in the retaining groove 111, so that the insulating strip 21 can be well held in the insulating body 10.

[0030] like Figure 8 As shown, in the present embodiment, the two rows of fixed terminals 22 in the terminal module 20 are firstly molded one by one on the corresponding first insulating arms 241 for preliminary positioning, and the two rows of fixed terminals 22 after preliminary positioning are further injection molded with the corresponding two second injection molding walls 242 to form two corresponding half assemblies 243. The two half assemblies 243 are assembled into the terminal module 20, and the grounding strip 40 is exposed on the outer surface of the first insulating wall 241.

[0031] Please refer to Fig. 9 As shown, each row of fixed terminals 22 includes a plurality of grounding terminals 25 and signal terminals 26, wherein two adjacent signal terminals 26 form a differential signal pair, and two grounding terminals 25 are respectively located on both sides of a pair of differential signal pairs, so that two pairs of differential pairs can be separated by a grounding terminal 25. Two adjacent grounding terminals 25 are connected and coupled to form a grounding terminal pair by a grounding strip 40, and a grounding strip 40 is separately provided between each two adjacent grounding terminal pairs. That is, each two adjacent grounding strips 40 are separated by a pair of signal terminal pairs 26 to destroy the resonance condition of the grounding terminal and suppress the resonance, which is described in detail in the U.S. provisional application US63380383.

[0032] Please refer to Fig.10 As shown, each grounding strip 40 is disposed face to face with a corresponding pair of differential signal terminals 26 .

[0033] Please refer to Figure 11-13As shown, the line end connector 200 includes an insulating base 50, a plurality of elastic terminals 62 and cables 63 connected to the terminals 62. Specifically, the insulating base 50 includes a plug-in portion 51 and a pair of slots 52 arranged along the longitudinal direction of the plug-in portion 51, and a row of elastic terminals 62 are arranged on both sides of each slot 52. The positioning plate 53 is located on the side of the plug-in portion 51 adjacent to the cable 63, and the inner wall surface facing the plug-in portion 51 is recessed with two locking grooves 531; the insulating base 50 or the plug-in portion is provided with retaining grooves 54 at both end walls along the longitudinal direction. Further combined Figure 5-6 As shown, one of the long side plates 32 of the metal housing 30 is provided with a protruding piece 321 protruding outward. When the line-end connector 200 and the board-end connector 100 are mated, the protruding piece 321 enters the locking groove 531 to play a role in matching guidance and positioning. The other long side plate 32 is not provided with a protruding piece. In addition, the outer sides of the two long side plates are provided with a rib 322 extending in the longitudinal direction. The two short side plates 31 extend upward beyond the long side plates 32, and are provided with a latching arm 311 that can be fixed in the latching groove 54 and a guide portion 312 located above the latching arm 311. The long side wall 12 on the side close to the protruding piece 321 is provided with a convex portion 121 opposite to the protruding piece 321.

[0034] Please refer to Figure 12-14 As shown, the insulating cover 59 covers the insulating base 50 to protect the elastic terminals 62 and cables 63 therein. The insulating base 50 is provided with two through slots 551 respectively connected to the two slots 52, and four support platforms 552 located on opposite sides of the two slots 52. Each row of elastic terminals 62 and the corresponding insulating strip 61 are integrally injection molded to form a line-to-terminal module, and the elastic arms 621 and legs 622 of the terminals 62 are exposed from the insulating strip 61. The terminal module is installed in the insulating base 50 through the through slots 551, and the legs 622 and the support platforms 552 interfere with each other, wherein the support platforms 552 are provided with partition ribs for positioning the legs 622.

[0035] Please refer to Fig.14 As shown, a pair of wire cores 631 of the cable 63 are welded to the two legs 622 of the differential signal terminal pair, and a pair of shielding brackets 641 respectively embrace the upper and lower parts of the cable 63, thereby shielding the rear side of the wire core 631. The shielding bracket 641 surrounds the outside of the shielding layer of the cable 63, but not the outside of the insulation layer. A shielding plate 642 is provided between every two rows of cables 63, and a plurality of grounding contact portions 6421 and vertical portions 6422 are extended from the shielding plate 642, wherein the grounding contact portion 6421 is electrically connected to the pin of the wire end grounding terminal, and the vertical portion 6422 is inserted into the positioning hole of the shielding bracket 641.

[0036] The above descriptions are only some embodiments of the present invention, not all embodiments. Any equivalent changes made to the technical solution of the present invention by ordinary technicians in this field after reading the specification of the present invention are covered by the claims of the present invention.

Claims

1. An electrical connector assembly, comprising a board-side connector and a line-side connector, characterized in that: The board-end connector includes a docking cavity, in which a pair of parallel plug tongues are arranged, and fixed terminals are arranged on both sides of the plug tongues; the line-end connector includes a plug-in portion and a plurality of cables, and the plug-in portion includes a pair of slots, and a row of elastic terminals are arranged on both sides of each slot. The plug-in portion is accommodated in the docking cavity, and the plug tongues are inserted into the slots so that the fixed terminals are in contact with the elastic terminals.

2. The electrical connector assembly according to claim 1, wherein: The board-end connector is provided with a metal shell, which is formed by a pair of short side plates and a pair of long side plates. The short side plates include a retaining arm formed by stamping upward and into the docking cavity and a guide portion formed by stamping upward and outward. The wire-end connector is provided with a retaining groove that cooperates with the retaining arm.

3. A line end connector, characterized in that: The wire end connector includes a base, four rows of elastic terminals and four rows of cables respectively connected to the four rows of elastic terminals. The base includes an inserting portion and a pair of slots arranged on the inserting portion along the longitudinal direction. The elastic terminals are fixed to the base, and a row of elastic terminals is respectively arranged on two opposite inner sides of each slot. The elastic terminals include elastic arms protruding into the slots and legs extending from the base, and the cables are connected to the legs.

4. The wire end connector according to claim 3, characterized in that: The two end walls of the plug-in part are provided with locking holes, the base includes a positioning plate, the positioning plate is located on a side of the plug-in part close to the cable, and the inner side of the positioning plate facing the plug-in part is provided with a locking groove.

5. The wire end connector according to claim 3, characterized in that: The base includes two through slots respectively connected to the two slots and four support platforms located on both sides of the through slots. Each row of elastic terminals is fixed by an insulating strip, and the insulating strip is inserted into the base through the through slots. The legs are supported on the support platforms.

6. The wire end connector according to claim 3, characterized in that: The upper and lower parts of the cable are each surrounded by a pair of shielding brackets, and the shielding brackets are located behind the wire core exposed to the outside; a shielding plate is provided between two adjacent rows of the cables, and the shielding plate has a grounding contact portion in contact with the leg portion and a vertical portion, and the vertical portion extends into the positioning hole of the shielding bracket.

7. A board-end connector, characterized in that: It comprises an insulating body, a metal shell and two plug tongues, wherein the insulating body comprises a base and two longitudinal side walls extending upward from the base, the metal shell comprises a pair of long side plates arranged outside the two side walls and a pair of short side plates located at both ends of the side walls, so that the side walls and the short side plates together enclose a docking cavity, the plug tongue protrudes into the docking cavity and is parallel to the side walls, and a row of fixed terminals are arranged on both sides of each of the plug tongues.

8. The board connector according to claim 7, characterized in that: One of the two long side plates is provided with a convex piece protruding outward, and one of the two side walls is provided with two convex parts protruding inward from its inner side surface.

9. The board connector according to claim 8, characterized in that: Each of the short side plates is provided with a buckling arm formed by stamping, and the buckling arm protrudes inwardly and extends upwardly.

10. The board connector according to claim 7, characterized in that: The two rows of fixed terminals are respectively fixed on corresponding insulating strips, the insulating strips include a base portion and a tongue plate, the fixed terminals include a plate-shaped portion exposed to the tongue plate and a pin extending from the base portion, the base portion is fixed in a retaining groove opened at the base portion, and the tongue plate protrudes into the docking cavity to form two pairs of insertion tongues.

11. The board connector according to claim 7, characterized in that: Each row of the fixed terminals includes a plurality of grounding terminals and signal terminals. Two adjacent grounding terminals are connected by a grounding strip to couple them into a grounding terminal pair. The two adjacent grounding terminal pairs are spaced apart from each other and are independent of each other.

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