An electrical connector with signal shielding and crosstalk prevention

Abstract

The application provides an electric connector with signal shielding and anti-crosstalk function, comprising a connector insulating shell, and a plurality of pairs of upper row terminals and lower row terminals inserted into the connector insulating shell; ear buckles are inserted into both ends of the connector insulating shell; a first shielding layer is clamped on both sides of the connector insulating shell along the length direction; a second shielding layer is clamped on the bottom of the connector insulating shell; the second shielding layer is located inside the first shielding layer; a third shielding layer is further arranged on the bottom of the connector insulating shell and located inside the connector insulating shell; and the first shielding layer and the third shielding layer are in contact with the ear buckles. The application has simple structure, can shield signal crosstalk through three shielding layers; the shielding layer is clamped on the embedded connector insulating shell, avoiding the use of plastic to realize the installation of the shielding cover, and the disassembly and assembly are convenient and fast; the installation and fixation of the terminal are realized through the fixing assembly arranged on the bottom of the connector insulating shell.

Description

An electrical connector with signal shielding and crosstalk prevention functions Technical Field

[0001] This invention relates to the field of connector technology, and in particular to an electrical connector with signal shielding and crosstalk prevention functions. Background Technology

[0002] Connectors are mainly used in applications such as servers / communication equipment where high signal integrity is required. Connectors generally consist of an insulating housing and terminals housed within the insulating housing.

[0003] To address the shielding issue, existing connectors are wrapped with a shielding cover on the outside. This cover is primarily fixed to the connector housing with plastic, which is not only inconvenient to install but also prone to cracking after prolonged use. Furthermore, since the existing shielding cover is directly wrapped around the outside of the connector, it increases the connector's size, thus limiting its application range. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an electrical connector with signal shielding and crosstalk prevention functions.

[0005] The technical solution of the present invention is as follows: an electrical connector with signal shielding and crosstalk prevention functions, comprising a connector insulating shell and multiple pairs of upper and lower terminals that are inserted into the connector insulating shell; the connector insulating shell is provided with corresponding latches at both ends;

[0006] The connector insulating shell has a first shielding layer snapped onto the left and right sides along its length; the connector insulating shell has a second shielding layer snapped onto the bottom; and the second shielding layer is located inside the first shielding layer.

[0007] The connector insulating housing is further provided with a third shielding layer at the bottom, and the third shielding layer is located inside the connector insulating housing; both the first shielding layer and the third shielding layer are in ear-lock contact.

[0008] Preferably, the connector insulating housing has a U-shaped structure, and the connector insulating housing has a through slot along its length, and the inner side wall of the slot is provided with a plurality of corresponding slots for engaging terminals.

[0009] Preferably, the bottom of the elongated slot is provided with a fixing component, and the multiple upper and lower row terminals are inserted into the fixing component and locked in the slot.

[0010] Preferably, the first shielding layer includes two first shielding sheets and two first shielding frames, with the two first shielding sheets snapped onto the two outer side walls of the connector insulating housing.

[0011] The two first shielding frames are snapped onto the outer side walls at both ends of the connector insulating housing, and the first shielding frames are connected together with the two first shielding plates.

[0012] Preferably, the first shielding sheet has a long strip structure, and the first shielding sheet has connecting protrusions at both ends, and a connecting arm for connecting to the bottom of the connector insulating housing is provided at the middle position of the first shielding sheet.

[0013] Preferably, the first shielding frame includes a U-shaped connecting part, and the U-shaped connecting part is symmetrically provided with snap-fit ​​parts, which snap into the inside of the connector insulating housing;

[0014] The lower end of the U-shaped connector is symmetrically provided with connecting pieces. The inner side of the connecting pieces has a protrusion. The two connecting pieces are attached to the outer wall of the connector insulating housing, and the protrusions on the connecting pieces are engaged in the connector insulating housing. The side wall of the connecting pieces is also provided with a groove for engaging with the connecting protrusion of the first shielding piece.

[0015] Preferably, the second shielding layer includes two second shielding sheets, which are symmetrically arranged, and each of the two second shielding sheets has a corresponding mating part connected to its two ends, and the mating part is embedded in the connector insulating housing.

[0016] Preferably, the two second shielding plates have stepped protrusions at the middle position, and the stepped protrusions are engaged in the connector insulating housing.

[0017] Preferably, the third shielding layer has a U-shaped frame structure, and the bottom of the third shielding layer is hollow, with the two ends connected by a T-shaped plate.

[0018] Preferably, the upper and lower rows of terminals have the same structure, including terminal arms, and contact ends and welding ends integrally formed at both ends of the terminal arms. The terminal arms are also provided with protrusions.

[0019] Preferably, the fixing component includes multiple fixing bodies, each fixing body having multiple stops, and the fixing bodies between the stops also having sockets for inserting terminals.

[0020] Preferably, the fastener body is further provided with multiple T-shaped locking parts, which are used to lock the upper row of terminals and the lower row of terminals together.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. The present invention has a simple structure. Crosstalk of signals can be shielded through the first shielding layer, the second shielding layer, and the third shielding layer. Moreover, the third shielding layer is connected to the PCB board to realize the bus function.

[0023] 2. The shielding layer of the present invention is embedded in the insulating housing of the connector by snap-fit, avoiding the use of plastic connectors to install the shielding cover, and is convenient and quick to install and remove, and further avoids increasing the size of the connector;

[0024] 3. The present invention achieves terminal installation and fixation by setting a fixing component at the bottom of the connector insulating shell; the fixing component of the present invention is made of LCP injection molding, which not only effectively improves the coplanarity and SMT pre- and post-reflow shrinkage problems, but also effectively prevents solder from entering the contact area of ​​the connector. Attached Figure Description

[0025] Figure 1 is a schematic diagram of the structure of the present invention;

[0026] Figure 2 is a schematic diagram of the structure of the present invention;

[0027] Figure 3 is a partial structural schematic diagram of the connector insulating housing of the present invention;

[0028] Figure 4 is a partial structural schematic diagram of the present invention;

[0029] Figure 5 is a partial structural schematic diagram of the present invention;

[0030] Figure 6 is a partial structural schematic diagram of the present invention;

[0031] Figure 7 is a schematic diagram of the structure of the first shielding sheet of the present invention;

[0032] Figure 8 is a schematic diagram of the structure of the first shielding frame of the present invention;

[0033] Figure 9 is a schematic diagram of the structure of the second shielding layer of the present invention;

[0034] Figure 10 is a schematic diagram of the structure of the third shielding layer of the present invention;

[0035] Figure 11 is a schematic diagram of the upper row of terminals of the present invention;

[0036] Figure 12 is a schematic diagram of the fixing component of the present invention;

[0037] In the diagram, 1-connector insulating housing, 2-upper row terminals, 3-lower row terminals; 4-first shielding layer; 5-second shielding layer; 6-third shielding layer; 7-fixing component; 8-ear buckle;

[0038] 11-Long slot, 12-Card slot;

[0039] 21-Terminal arm, 22-Contact end, 23-Soldering end; 24-Protrusion bulge;

[0040] 41-First shielding plate; 42-First shielding frame; 43-Connecting protrusion; 44-Connecting arm; 45-U-shaped connecting part; 46-Snap-fit ​​part; 47-Connecting plate; 48-Protrusion; 49-Slot;

[0041] 51-Second shielding plate; 52-Matching part; 53-Stepped protrusion; 54-Connecting plate; 55-Clamping block;

[0042] 61-T-type plate;

[0043] 71-Fixing body, 72-Stop, 73-Socket; 74-T-type engaging part. Detailed Implementation

[0044] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0045] As shown in Figures 1-6, this embodiment provides an electrical connector with signal shielding and crosstalk prevention functions, including a connector insulating shell 1 and multiple pairs of mating upper row terminals 2 and lower row terminals 3 inserted into the connector insulating shell 1. Corresponding ear clips 8 are inserted into both ends of the connector insulating shell 1. A first shielding layer 4 is provided on the left and right side walls along the length direction of the connector insulating shell 1. A second shielding layer 5 is snapped onto the bottom of the connector insulating shell 1 along the length direction, and the second shielding layer 5 is located inside the first shielding layer 4.

[0046] The connector insulating housing 1 also has a third shielding layer 6 along its length at the bottom, and the third shielding layer 6 is snapped onto the inner side of the connector insulating housing 1. Both the first shielding layer 4 and the third shielding layer 5 are in contact with the ear loop 8.

[0047] As a preferred embodiment, as shown in Figures 1-3, the connector insulating housing 1 has a U-shaped structure, and the connector insulating housing 1 has a through slot 11 along its length direction. The upper and lower ends of the inner sidewall of the slot 11 are symmetrically provided with multiple corresponding slots 12 for engaging the upper row of terminals 2 and the lower row of terminals 3.

[0048] As a preferred embodiment, as shown in Figures 1-3, the bottom of the elongated slot 11 is provided with a fixing component 7, and the multiple upper row terminals 2 and lower row terminals 3 are inserted into the fixing component 7 and snapped into the slot 12.

[0049] As a preferred embodiment, as shown in Figures 4, 5, and 6, the first shielding layer 4 includes two first shielding sheets 41 and two first shielding frames 42. The two first shielding sheets 41 are snapped onto the two outer side walls of the connector insulating housing 1. The two first shielding sheets 41 are also provided with corresponding first shielding frames 42 at both ends. The two first shielding frames 42 are snapped onto the outer side walls at both ends of the connector insulating housing 1.

[0050] As a preferred embodiment, as shown in FIG7, the first shielding plate 41 is a long strip structure, and the first shielding plate 41 has corresponding connecting protrusions 43 at both ends, and a connecting arm 44 for connecting to the bottom of the connector insulating housing 1 is provided at the middle position of the first shielding plate 41.

[0051] As a preferred embodiment, as shown in Figures 6 and 8, the first shielding frame 42 includes a U-shaped connecting portion 45, which contacts the ear loop 8. Two inwardly bent snap-fit ​​portions 46 are symmetrically arranged on the U-shaped connecting portion 45, and these snap-fit ​​portions 46 snap into the interior of the connector insulating housing 1, as shown in Figure 6.

[0052] Two connecting pieces 47 are symmetrically arranged at the lower end of the U-shaped connecting portion 45. The inner side of each connecting piece 47 has a protrusion 48. The two connecting pieces 47 are attached to the outer wall of the connector insulating housing 1, and the protrusions 48 on the connecting pieces 47 are engaged with the connector insulating housing 1. The side wall of the connecting piece 47 is also provided with a slot 49 for engaging with the connecting protrusion 43 of the first shielding plate 41.

[0053] As a preferred embodiment, as shown in Figures 4-5 and 9, the second shielding layer 5 includes two second shielding sheets 51, which are symmetrically arranged and have a hollow structure between them. Each of the two second shielding sheets 51 has a corresponding fitting portion 52 connected to both ends, which is fitted into the connector insulating housing 1, as shown in Figures 4-5. A stepped protrusion 53 is located at the middle of each of the two second shielding sheets 51, and the stepped protrusion 53 engages with the connector insulating housing 1.

[0054] As a preferred embodiment, as shown in FIG9, the fitting part 52 includes a connecting plate 54, which connects two second shielding plates 51, and the connecting plate 54 is also symmetrically provided with locking blocks 55 at both ends.

[0055] As a preferred embodiment, as shown in Figures 4, 5, and 10, the third shielding layer 6 has a U-shaped frame structure, and the bottom of the third shielding layer 6 is a hollow structure. The two ends are connected by a T-shaped plate 61, and the T-shaped plate 61 of the third shielding layer 6 is in contact with the ear loop 8.

[0056] As a preferred embodiment, as shown in FIG11, the upper row of terminals 2 and the lower row of terminals 3 have the same structure, including terminal arms 21, and contact ends 22 and welding ends 23 integrally formed at both ends of the terminal arms 21. The terminal arms 21 are also provided with protrusions 24.

[0057] As a preferred embodiment, as shown in FIG12, the fixing component 7 includes a plurality of fixing bodies 71, a plurality of stops 72 are provided on the fixing bodies 71, and the fixing bodies 71 of the stops 72 brackets are also provided with sockets 73 for inserting the upper row of terminals 2 and the lower row of terminals 3.

[0058] As a preferred embodiment, as shown in FIG12, the fastener body 71 is further provided with a plurality of T-shaped engaging portions 74, which are used to engage the upper row of terminals 2 and the lower row of terminals 3 together.

[0059] The embodiments and descriptions above are merely illustrative of the principles and preferred embodiments of the present invention. Various changes and modifications may be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. An electrical connector with signal shielding and crosstalk prevention functions, comprising a connector insulating housing (1), and multiple pairs of mating upper row terminals (2) and lower row terminals (3) inserted into the connector insulating housing (1); characterized in that: The connector insulating housing (1) has a first shielding layer (4) attached to the left and right side walls along its length; the connector insulating housing (1) has a second shielding layer (5) attached to its bottom along its length; and the second shielding layer (5) is located inside the first shielding layer (4); the connector insulating housing (1) also has a third shielding layer (6) attached to its bottom along its length; the first shielding layer (4) includes two first shielding plates (41) and two first shielding frames (42), the two first shielding plates (41) are attached to the two outer side walls of the connector insulating housing (1); the two first shielding plates (41) also have corresponding first shielding frames (42) at both ends; the two first shielding frames (42) are attached to the connector On the outer side walls at both ends of the insulating housing (1); the second shielding layer (5) includes two second shielding plates (51), which are symmetrically arranged and have a hollow structure between them; the two second shielding plates (51) are connected to corresponding fitting parts (52) at both ends, which are fitted into the connector insulating housing (1), and there is a stepped protrusion (53) in the middle of the two second shielding plates (51), which is inserted into the connector insulating housing (1); the third shielding layer (6) is a U-shaped frame structure, and the bottom of the third shielding layer (6) is hollow, with both ends connected by a T-shaped plate (61).

2. The electrical connector with signal shielding and crosstalk prevention functions according to claim 1, characterized in that: The connector insulating housing (1) is a U-shaped structure, and the connector insulating housing (1) is opened along the length direction in a through slot (11), and the upper and lower ends of the inner sidewall of the slot (11) are symmetrically provided with multiple corresponding slots (12) for snapping the upper row of terminals (2) and the lower row of terminals (3).

3. An electrical connector with signal shielding and crosstalk prevention functions according to claim 2, characterized in that: The bottom of the long slot (11) is provided with a fixing component (7), and multiple upper row terminals (2) and lower row terminals (3) are inserted into the fixing component (7) and snapped into the slot (12).

4. An electrical connector with signal shielding and crosstalk prevention functions according to claim 1, characterized in that: The upper row of terminals (2) and the lower row of terminals (3) have the same structure, including a terminal arm (21), and a contact end (22) and a welding end (23) integrally formed at both ends of the terminal arm (21). The terminal arm (21) is also provided with a protrusion (24).

5. An electrical connector with signal shielding and crosstalk prevention functions according to claim 1, characterized in that: The first shielding plate (41) is a long strip structure, and the first shielding plate (41) has corresponding connecting protrusions (43) at both ends. The first shielding plate (41) has a connecting arm (44) for connecting to the bottom of the connector insulating housing (1) at the middle position.

6. An electrical connector with signal shielding and crosstalk prevention functions according to claim 1, characterized in that: The first shielding frame (42) includes a U-shaped connecting part (45), on which two inwardly bent snap-fit ​​parts (46) are symmetrically arranged, and the snap-fit ​​parts (46) snap into the inside of the connector insulating housing (1).

7. An electrical connector with signal shielding and crosstalk prevention functions according to claim 6, characterized in that: The lower end of the U-shaped connecting part (45) is symmetrically provided with two connecting pieces (47). The inner side of the connecting piece (47) has a protrusion (48). The two connecting pieces (47) are attached to the outer wall of the connector insulating housing (1), and the protrusion (48) on the connecting piece (47) is inserted into the connector insulating housing (1). The side wall of the connecting piece (47) is also provided with a slot (49) for engaging with the connecting protrusion (43) of the first shielding piece (41).

8. An electrical connector with signal shielding and crosstalk prevention functions according to claim 1, characterized in that: The fitting part (52) includes a connecting plate (54), which connects two second shielding plates (51), and the connecting plate (54) is also symmetrically provided with locking blocks (55) at both ends.

9. An electrical connector with signal shielding and crosstalk prevention functions according to claim 3, characterized in that: The fixing component (7) includes multiple fixing bodies (71), each fixing body (71) is provided with multiple stops (72), and the fixing bodies (71) between the stops (72) are also provided with sockets (73) for inserting the upper row of terminals (2) and the lower row of terminals (3).

10. An electrical connector with signal shielding and crosstalk prevention functions according to claim 9, characterized in that: The fastener body (71) is also provided with a plurality of T-shaped engaging parts (74) for inserting the upper row of terminals (2) and the lower row of terminals (3) together by engaging the fastener body (71) with the T-shaped engaging parts (74).

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