Electrical connector

Abstract

The present invention provides an electrical connector, including an insulating body, a terminal group accommodated in the insulating body, and an isolation plate, wherein the terminal group includes a plurality of upper-row terminals and a plurality of lower-row terminals, the isolation plate is between the upper-row terminals and the lower-row terminals, and the isolation plate is provided with a pair of upper grounding arms and a pair of lower grounding arms connected in one piece, the upper grounding arms and the plurality of upper-row terminals are located in the same plane and on both sides of the plurality of upper-row terminals, and the lower grounding arms and the plurality of lower-row terminals are located in the same plane and on both sides of the plurality of lower-row terminals. Compared with the prior art, the present invention improves the structure of the isolation plate so that it not only has an isolation function, but also adds upper and lower grounding arms extending into the terminal arrangement to act as grounding elements, which can better ensure the signal transmission quality of the upper and lower-row terminals.

Description

Technical Field

[0001] The present invention relates to the field of electrical connectors. Background Art

[0002] With the trend toward smaller and thinner consumer electronics such as laptops, tablets, and mobile phones, the design and manufacturing processes for their components are becoming increasingly demanding. As these products become increasingly thinner and lighter, the space within them becomes very limited, requiring a denser layout within the product. The volume of each electronic component is also decreasing, making it increasingly thinner and lighter. For connectors that transmit high-frequency signals, the compact size necessitates a denser arrangement of terminals within the connector, which inevitably impacts signal transmission. To shield signal interference between terminals, many connectors incorporate additional shielding elements. For example, in USB connectors, a metal isolation plate is typically embedded between the upper and lower rows of terminals to isolate interference between the upper and lower rows of signals. However, with increasing demands for signal quality, existing metal isolation plates can only provide isolation between the upper and lower rows of signals, but cannot provide additional isolation and shielding, making it difficult to meet the increasingly stringent electrical performance requirements of products. Summary of the Invention

[0003] The technical problem solved by the present invention is to provide an electrical connector assembly to improve the problem of insufficient shielding function of the isolation plate in the prior art.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solution: an electrical connector, comprising an insulating body, a terminal group housed in the insulating body, and an isolation plate, the terminal group comprising a plurality of upper row terminals and a plurality of lower row terminals, the isolation plate being interposed between the upper row terminals and the lower row terminals, the isolation plate being provided with a pair of upper grounding arms and a pair of lower grounding arms integrally connected, the upper grounding arms being located in the same plane as the plurality of upper row terminals and being located on both sides of the plurality of upper row terminals, the lower grounding arms being located in the same plane as the plurality of lower row terminals and being located on both sides of the plurality of lower row terminals.

[0005] Furthermore, the isolation plate is provided with a substrate, which has a front surface facing the upper row of terminals and a back surface facing the lower row of terminals. The upper grounding arm protrudes upward from the front surface and extends in a long strip shape from back to front. The two ends of the upper grounding arm are integrally connected to the substrate.

[0006] Furthermore, the base plate is provided with a narrow slot just below the upper grounding arm, the upper grounding arm and the lower grounding arm are arranged in a one-to-one correspondence along the vertical direction, and the narrow slot is located between the upper grounding arm and the lower grounding arm.

[0007] Furthermore, the upper grounding arms are formed on both sides of the front surface of the substrate by tearing and molding.

[0008] Furthermore, the lower grounding arm is located below the base plate and extends from the back to the front in a long strip shape. The rear end of the lower grounding arm is integrally connected to the base plate through a U-shaped bending arm, and the front end is a free end.

[0009] Furthermore, the upper grounding arm and the lower grounding arm are at least partially overlapped in vertical projection.

[0010] Furthermore, the insulating body is provided with a docking tongue plate, the docking tongue plate is provided with a top surface and a bottom surface, the upper row terminals and the upper grounding arm are provided on the top surface, and the lower row terminals and the lower grounding arm are provided on the bottom surface.

[0011] Furthermore, the isolation plate is also provided with a first mounting foot, a second mounting foot and a third mounting foot extending from the rear end of the base plate. The first mounting foot and the second mounting foot extend from the rear end edge of the base plate and are distributed along the front and rear directions. The third mounting foot extends outward from both side edges of the base plate.

[0012] Furthermore, a notch is provided at the front edge of the substrate and is recessed backwards, and a narrow and long opening is also provided on the substrate and passes through the front surface and the back surface in a vertical direction.

[0013] Compared with the prior art, the present invention improves the structure of the isolation plate so that it not only has an isolation function, but also adds upper and lower grounding arms extending into the terminal arrangement to act as grounding elements, which can better ensure the signal transmission quality of the upper and lower rows of terminals. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the electrical connector of the present invention.

[0015] Figure 2 This is a partial exploded view of the electrical connector of the present invention.

[0016] Figure 3 Schematic diagram of the upper row of terminals and the lower row of terminals of the electrical connector of the present invention.

[0017] Figure 4 This is a three-dimensional view of the electrical connector of the present invention with the isolation plate facing upward.

[0018] Figure 5 This is a three-dimensional view of the electrical connector of the present invention with the isolation plate bottom facing upward.

[0019] Figure 6 Schematic diagram of a single upper row of terminals and a single lower row of terminals of the electrical connector of the present invention.

[0020] Figure 7 Schematic diagram of the arrangement of the upper row of terminals and the lower row of terminals of the electrical connector of the present invention in the installed state. DETAILED DESCRIPTION

[0021] See also Figures 1 to 7 As shown, the present invention provides an electrical connector comprising an insulating body 10, a terminal assembly 20 and an isolation plate 30 housed within the insulating body 10, and a housing 40 covering the surface of the insulating body 10. The terminal assembly 20 and isolation plate 30 are secured within the insulating body 10 to ensure stable signal transmission, while the housing 40 shields external interference signals and provides a certain degree of protection for the insulating body 10. The specific structure and function of each component are described in detail below.

[0022] like Figure 1 and Figure 2 As shown, the insulating body 10 is provided with a base 11 and a docking tongue 12 extending forward from the base 11. The base 11 is provided with a top surface 13 and a pair of curved walls 14 on either side of the top surface 13. The top surface 13 is provided with a plurality of grooves 15 for snapping and positioning with the housing 40, and the curved walls 14 are used for fitting with the housing 40. In addition, the rear side of the top surface 13 is provided with an upwardly protruding stopper 16 for resisting the housing 40 from the rear to achieve front-to-back position limiting. The docking tongue 12 is provided with a top surface 120 and a bottom surface 121 for supporting the terminal assembly 20. Furthermore, the two sides of the docking tongue 12 are provided with inwardly recessed notches 17.

[0023] like Figure 2 and Figure 6 As shown, the terminal assembly 20 includes a plurality of upper-row terminals 210 and a plurality of lower-row terminals 220. The upper-row terminals 210 and the lower-row terminals 220 are equal in number and correspond to each other one-to-one. They are respectively disposed on the top surface 120 and the bottom surface 121 of the docking tongue 12. The upper-row terminals 210 are provided with an upper contact arm 211 exposed on the top surface 120 of the docking tongue 12 and an L-shaped upper mounting arm 212 extending from the rear end of the upper contact arm 211. The upper contact arm 211 extends from rear to front, and an upper embedded portion 213 is provided at the front end of the upper contact arm 211 for embedding within the docking tongue 12. The lower-row terminals 220 are provided with a lower contact arm 221 exposed on the bottom surface 121 of the docking tongue 12 and a lower mounting arm 222 extending from the rear end of the lower contact arm 221. The lower contact arm 221 extends from rear to front, and a lower embedded portion 223 is provided at the front end of the lower contact arm 221.

[0024] It is worth mentioning that in the best embodiment of the present invention, the upper contact arm 211 is provided with an upper main arm 214 and an upper offset arm 215 extending forward from the front end of the upper main arm 214, and the upper offset arm 215 is an integral structure with the upper main arm 214, but the upper offset arm 215 is offset toward one side of the upper main arm 214 in the horizontal plane; the lower contact arm 221 is provided with a lower main arm 224 and a lower offset arm 225 extending forward from the front end of the lower main arm 224, and the lower offset arm 225 is an integral structure with the lower main arm 224, and the lower offset arm 225 is offset toward one side of the lower main arm 224 in the horizontal plane. It should be noted that the upper main arm 214 and the lower main arm 224 are respectively fixed on the upper and lower sides of the docking tongue plate 12, and the two are staggered in the vertical direction so that their projections do not overlap, and the lower offset arm 225 and the upper offset arm 215 are respectively deviated from the front ends of the upper main arm 214 and the lower main arm 224 in opposite directions, so that in the vertical direction, the projections of the upper offset arm 215 and the lower offset arm 225 overlap, that is, for the two upper and lower corresponding upper row terminals 210 and lower row terminals 220, the upper main arms 214 and lower main arms 224 of the two are staggered in the vertical direction, and the projections do not overlap, and the upper offset arms 215 and lower offset arms 225 of the two extend forward from the front ends of the upper main arm 214 and the lower main arm 224 and are arranged close to each other, so as to achieve overlapping projections of the two in the vertical direction.

[0025] In addition, the upper embedded portion 213 is bent downward from the front end of the upper contact arm 211 and embedded in the docking tongue plate 12, and the lower embedded portion 223 is bent upward from the front end of the lower contact arm 221 and embedded in the docking tongue plate 12, thereby achieving the fixation of the terminal. It should be noted that, in a preferred embodiment of the present invention, the upper embedded portion 213 is provided with an upper limit arm 216 biased to the left, and the lower embedded portion 223 is provided with a lower limit arm 226 biased to the right. Therefore, the upper limit arm 216 of the upper row terminal 210 and the lower limit arm of the lower row terminal 220 are staggered in the vertical direction, as shown in FIG. Figure 7 shown.

[0026] It can be seen that for the two upper row terminals 210 and lower row terminals 220 corresponding to each other, there is a partial overlap and partial staggered distribution in the vertical direction. Since the upper offset arm 215 and the lower offset arm 225 serve as the electrical contact parts of the upper row terminals 210 and the lower row terminals 220, the overlapping setting of the two in the vertical direction is more conducive to signal transmission, and the upper mounting arm 212 and the lower mounting arm 222 serve as the mounting parts of the upper row terminals 210 and the lower row terminals 220, which extend backward out of the insulating body 10 for welding on a circuit board (not shown). Therefore, the staggered setting of the two in the vertical direction is more conducive to the installation operation.

[0027] like Figure 4 and Figure 5 As shown, the isolation plate 30 is buried in the docking tongue plate 12 and is located between the upper row of terminals 210 and the lower row of terminals 220 to serve as an isolation. The isolation plate 30 is made of metal and is formed by integrally punching and bending a metal plate. The isolation plate 30 is provided with a base plate 31 and a first mounting foot 32, a second mounting foot 33 and a third mounting foot 34 extending from the rear end of the base plate 31. The base plate 31 is provided with a front surface 35 facing upward and a back surface 36 facing upward. The base plate 31 is provided with a pair of upper grounding arms 37 located on both sides of the front surface 35 and lower grounding arms 38 bent downwardly from the side edges of the front surface 35. The front edge of the base plate 31 is provided with a pair of notches 310 formed by a rearward recess, and the base plate 31 is also provided with a narrow opening 311 vertically passing through the front surface 35 and the back surface 36. The upper grounding arms 37 protrude upward from the front surface 35, are in the shape of an elongated strip, and extend from the back to the front along the side edges of the base plate 31. The lower grounding arms 38 are located below the base plate 31 and are integrally connected to the base plate 31 via a U-shaped bent arm 39. The lower grounding arms 38 are in the shape of an elongated strip and extend from the back to the front. The first mounting foot 32 and the second mounting foot 33 extend from the rear end edge of the substrate 31 and are distributed in the front and rear directions. They are respectively located at the two ends of the upper row of terminals 210 and the two ends of the lower row of terminals 220. The third mounting foot 34 is located on the outside of the first mounting foot 32 and the second mounting foot 33. It is directly inserted into the circuit board to achieve electrical connection, and the third mounting foot 34 is between the first mounting foot 32 and the second mounting foot 33 in the front and rear direction.

[0028] It is worth noting that the upper grounding arm 37 and the lower grounding arm 38 are located on the front and back sides of the base plate 31, respectively, with their projections at least partially overlapping vertically. Furthermore, the upper grounding arm 37 is formed on the base plate 31 by tearing, so that both its front and rear ends are integrally connected to the base plate 31. A slot 312, left by the tearing, is provided on the base plate 31 directly below the upper grounding arm 37. The two upper grounding arms 37 extend parallel to each other. The front end of the lower grounding arm 38 is free and not integrally connected to the base plate 31. Instead, it is connected to the back surface 36 of the base plate 31 by an overlapping connection. The rear end of the lower grounding arm 38 is integrally connected to the U-shaped bent arm 39. The upper grounding arm 37 is located at the first and last ends of the upper row of terminals 210, parallel to the upper row of terminals 210. The lower grounding arm 38 is located at the first and last ends of the lower row of terminals 220, parallel to the lower row of terminals 220. In this way, the isolation plate 30 not only has the function of isolating the upper and lower rows of terminals 220, but also adds an upper grounding arm 37 and a lower grounding arm 38 exposed on the top surface 120 and the bottom surface 121 of the docking tongue plate 12, acting as grounding elements for the upper row of terminals 210 and the lower row of terminals 220, which can effectively improve signal transmission. Moreover, the upper grounding arm 37 and the lower grounding arm 38 are an integrated structure with the substrate 31, which ensures the stability of the grounding connection and can meet the requirements of high-frequency transmission.

[0029] In summary, the present invention improves the structure of the isolation plate by adding upper and lower grounding arms extending into the terminal arrangement to serve as grounding elements, thereby better ensuring signal transmission of the terminals.

[0030] The above description is only the best embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the present invention using the above-disclosed method content without departing from the scope of the technical solution of the present invention, which all fall within the scope of protection of the claims.

Claims

1. An electrical connector, comprising an insulating body, a terminal group received in the insulating body, and an isolation plate, wherein the terminal group comprises a plurality of upper row terminals and a plurality of lower row terminals, and the isolation plate is disposed between the upper row terminals and the lower row terminals, characterized in that: The isolation plate is provided with a pair of upper grounding arms and a pair of lower grounding arms which are integrally connected, the upper grounding arms and the plurality of upper row terminals are located in the same plane and are located on both sides of the plurality of upper row terminals, and the lower grounding arms and the plurality of lower row terminals are located in the same plane and are located on both sides of the plurality of lower row terminals; the isolation plate is provided with a substrate, the substrate is provided with a front surface facing the upper row terminals and a back surface facing the lower row terminals, the upper grounding arms protrude upward from the front surface and extend in a long strip shape from back to front, and the two ends of the upper grounding arms are integrally connected with the substrate; the substrate is provided with a narrow groove at a position directly below the upper grounding arm, the upper grounding arms and the lower grounding arms are arranged one by one in the vertical direction, and the narrow groove is located between the upper grounding arms and the lower grounding arms; the upper grounding arms are formed on both sides of the front surface of the substrate by tearing and forming; the lower grounding arms are located below the substrate and extend in a long strip shape from back to front, the rear end of the lower grounding arm is integrally connected with the substrate through a U-shaped bending arm, and its front end is a free end.

2. The electrical connector according to claim 1, characterized in that: The upper grounding arm and the lower grounding arm are at least partially overlapped in projection in the vertical direction.

3. The electrical connector according to claim 2, wherein: The insulating body is provided with a docking tongue plate, the docking tongue plate is provided with a top surface and a bottom surface, the plurality of upper row terminals and the upper grounding arm are provided on the top surface, and the plurality of lower row terminals and the lower grounding arm are provided on the bottom surface.

4. The electrical connector according to claim 3, characterized in that: The isolation plate is also provided with a first mounting foot, a second mounting foot and a third mounting foot extending from the rear end of the base plate. The first mounting foot and the second mounting foot extend from the rear end edge of the base plate and are distributed in the front and rear directions. The third mounting foot extends outward from both side edges of the base plate.

5. The electrical connector according to claim 4, characterized in that: A notch is formed by being recessed backwards at the front edge of the substrate, and a narrow and long opening is also formed on the substrate which passes through the front surface and the back surface in the vertical direction.

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