Electrical connector

Abstract

An electrical connector includes a first body, a first shield covering the first body, and a pair of terminals located within the first body. The first body includes a front end face, a rear end face, and a pair of terminal holes penetrating the front and rear end faces. The terminals are received within the terminal holes and do not extend forward beyond the terminal holes. The first shield includes a tapered portion extending forward beyond the front end face of the first body. The tapered portion gradually slopes inward from the first shield to optimize the high-frequency performance of the connector.

Description

Technical Field

[0001] The present invention relates to an electrical connector, and in particular to an electrical connector for vehicle Ethernet transmission. Prior Art

[0002] For prior art, please refer to utility model patent CN214542783U, which discloses an Ethernet automotive connector comprising a male connector and a female connector. The terminal position lock is in the shape of a cross with two curved sides and a convex center. The curved sides are provided with barbed hooks. The terminal position lock engages with a cross groove. When the distal plug end of the front shield shell is inserted into the outer side of the rear shield shell, the latch locks with the protrusion. The barbed hook locks into the primary slot, unlocking the front shield shell and the outer shell. The barbed hook locks into the secondary slot, locking the front shield shell and the outer shell. The metal baffle is inserted along the groove into the inner cavity of the die-cast shield shell and positioned at the rear end of the inner rubber core. The spring clip is locked into the corresponding spring clip groove in the inner cavity wall of the outer shell. The top buckle of the inner cavity wall of the outer shell presses against one end of the inclined protrusion to secure the connector. The high-frequency performance of this connector needs to be optimized.

[0003] Therefore, it is necessary to design a new electrical connector to solve the above defects. Summary of the Invention

[0004] The present application provides an electrical connector, wherein the cover member has a closing portion, which can improve high-frequency performance.

[0005] To achieve the above-mentioned purpose, the present application may adopt the following technical solution: an electrical connector, which includes a first body, a first mask covering the outside of the first body, and a pair of terminals located in the first body, the first body includes a front end face, a rear end face and a pair of terminal holes passing through the front and rear end faces, the terminals are accommodated in the terminal holes and do not extend forward from the terminal holes; the first mask includes a closing portion that extends forward from the front end face of the first body, and the closing portion gradually tilts and shrinks inward from the first mask.

[0006] Compared with the prior art, the present invention has the following beneficial effects: the front end of the first shielding member continues to extend forward to form a closing portion, which can optimize the high-frequency performance of the electrical connector. Simple diagram description

[0007] Figure 1 is a perspective view of the electrical connector of the present invention; Figure 2 is a partial exploded view of the electrical connector shown in Figure 1 and an enlarged view of the circled structure; Figure 3 is a partially exploded view of another angle shown in Figure 2; Figure 4 is an exploded view of the first mask member, the first body and the second mask member in Figure 2; Figure 5 is an exploded view of the cable assembly and the strain relief member of Figure 2; Figure 6 is a perspective view of the first mask member in Figure 4; Figure 7 is a further exploded view shown in Figure 5; Figure 8 is a sectional view of the electrical connector along VIII-VIII shown in Figure 1; Figure 9 is a sectional view of the electrical connector shown in Figure 1 along IX-IX; Figure 10 is a perspective view of a second embodiment of the present invention; Figure 11 is a perspective view of the internal structure of Figure 10; and FIG12 is a cross-sectional view of the electrical connector shown in FIG10 along line XII-XII. Implementation Method

[0008] Referring to Figures 1 through 9 , an electrical connector 100 is disclosed. This connector is used for high-speed automotive signal transmission and requires high shielding and high-frequency performance. The electrical connector 100 includes a first body 10, a first shield 40 covering the first body 10, and a pair of terminals 30 located within the first body 10.

[0009] Referring to Figures 4 and 5 , the first body 10 is injection-molded from an insulating material. The first body 10 includes a front face 101, a rear face (unnumbered), and a pair of terminal holes 102 extending through the front and rear faces. The terminals 30 are received within the terminal holes 102 and do not extend forward beyond the terminals (as clearly shown in Figure 8 ). The first shielding member 40 is a tubular structure that covers the exterior of the first body. The first shielding member 40 is provided with elastic arms 41. The first body is provided with elongated slots 103 corresponding to the elastic arms. When the elastic arms 41 are deformed inwardly, they elastically deform into the slots 103. In this embodiment, the elastic arms 41 are provided on all four sides of the first shielding member 40, and the ends of the elastic arms 41 are not connected to the main body of the first shielding member. As shown in Figure 6, the front end of the first shielding member 40 includes a closing portion 42. As shown in Figure 8, the closing portion 42 extends forward beyond the front end face 101 of the first body. The closing portion 42 gradually tapers inward from the first shielding member to better cover the first body 10 and the terminal 30, optimizing high-frequency performance. In a specific embodiment, the first shielding member 40 includes a front tube portion 43 having a first inner diameter and a rear tube portion 44 having a second inner diameter, the second inner diameter being larger than the first inner diameter. The closing portion 42 extends forward from the front tube portion 43 and gradually decreases in inner diameter, with no sudden change in inner diameter between the two. The front and rear tube portions are integrally connected by a connecting portion 45, creating a sudden change in inner diameter. Furthermore, the front end of the elastic arm 41 is spaced significantly apart from the front end of the front tube portion 43. Overall, the elastic arm 41 significantly damages the front tube portion 43. As can be seen in Figure 8, the front end of the elastic arm 41 is located behind the front end face of the terminal.

[0010] Referring to Figures 4 to 7 , the electrical connector 100 includes a cable assembly 70 connected to the terminal 30, a third shielding member 60 enclosing the cable assembly, and a second shielding member 50 connecting the first shielding member 40 and the third shielding member 60. The overlapping joints of the first, second, and third shielding members are all spot-welded. The cable assembly 70 includes two parallel cables 71, each having an exposed core 72 that is crimped to the rear end of the terminal 30. The third shielding member 60 has a crimping portion 61 corresponding to each of the two cables 71. The crimping portion substantially surrounds each cable (as best shown in Figure 5 ). When viewed from front to back (see Figure 9 ), the crimping portion 61 includes a slit 612 and a V-shaped recess 611 formed by crimping. The slit 612 is also crimped inwardly into a V-shape. The V-shaped recess 611 and the slit 612 are located between the two cables 71, and are located on the upper and lower sides, respectively. The second shielding member 50 wraps rearwardly around the crimping portion 61 of the third shielding member, with the connecting seam of the second shielding member 50 corresponding to the V-shaped recess 611 of the third shielding member, thereby enhancing the shielding performance of the electrical connector. The second shielding member 50 wraps forwardly around the rear half of the first body 10 and is enclosed by the first shielding member 40, as shown in Figures 2 and 8.

[0011] A strain relief member 80 is mounted at the rear end of the cable assembly 70. The strain relief member 80 is sleeved onto the cable assembly 70 from rear to front, and a plurality of raised rings 81 are provided at the front end of the strain relief member. The electrical connector further includes a second body 20, which includes a cylindrical portion 23 at the rear end. The strain relief member is assembled forwardly within the cylindrical portion 23, and the raised rings 81 interfere with the inner wall of the cylindrical portion, as shown in FIG8 .

[0012] The first body 10, the first, second and third cover members 40, 50 and 60 are assembled and housed in the second body 20, and the strain relief member 80 and the cable assembly 70 are partially exposed to the outside.

[0013] The second body 20 includes a docking cavity 210 extending forward and a docking ring 21 surrounding the docking cavity. The outer surface of the docking ring is provided with a cantilevered locking arm 211 and unevenly spaced anti-fouling ridges 212. As shown in FIG8 , the closing portion 42 is located within the docking cavity 210 and does not extend forward beyond the second body 20. That is, the distance between the closing portion 42 and the front end surface 101 of the first body is greater than the distance between the closing portion 42 and the front end surface of the second body. The second body 20 also includes a square middle portion 22 and a cylindrical portion 23. The top of the middle portion 22 is provided with a mounting groove 220 and a crossbeam 221. The locking arm 211 extends backward into the space above the mounting groove 220. The crossbeam 221 can prevent the locking arm 211 from excessively rotating upward. The top two sides of the middle portion 22 are L-shaped structures.

[0014] The electrical connector 100 includes a connector positioning device 90 mounted above the second body 20 and a terminal positioning device 99 mounted below the second body. The connector positioning device 90 is mounted in a mounting slot 220 from back to front. The locking arm 211 can abut against the connector positioning device 90, specifically, against the front end of the horizontal plate 91 provided on the connector positioning device 90. Each side of the intermediate portion 22 is provided with two locking holes 222 for locking the connector positioning device 90. When the connector positioning device 90 is locked in the locking holes 222 near the rear end, the locking arms 211 do not abut against the horizontal plate 91, and the locking arms 211 are in an unlocked state and can rotate downward. When the connector positioning device 90 is locked in the locking holes 222 near the front end, the locking arms 211 abut downward against the horizontal plate 91, and the locking arms 211 are in a locked state and cannot rotate downward. The terminal positioning device 99 is mounted from bottom to top at the bottom of the second body 20.

[0015] The assembly sequence of the electrical connector 100 is as follows: crimp the terminal 30 and the cable assembly 70, install the third mask 60, and assemble them together into the first body 10. Then, install the second mask 50, the first mask 40, and the strain relief 80 in sequence, and then assemble them together into the second body 20. Finally, install the connector positioning device 90 and the terminal positioning device 99 into the second body.

[0016] Referring to Figures 10 through 12 , a second embodiment of an electrical connector 200 of the present application is shown. While its basic structure is identical to that of the aforementioned electrical connector 100 , the second embodiment differs in that the front end of the first shielding member 40' begins to retract inwards near the rear of the front end face of the first body 10', stops at the front end face 101' of the first body, and extends straight forward to form a closed portion 42'. The first body 10' has an inclined surface 102' formed at the location corresponding to the retraction of the first shielding member 40' to facilitate the retraction of the first shielding member 40'.

[0017] The above embodiments are preferred embodiments of the present invention, but not all embodiments. Any equivalent changes made to the technical solutions of the present invention by persons of ordinary skill in the art after reading the specification of the present invention are covered by the scope of the patent application of the present invention.

[0018] 100:Electrical connector 10:The first ontology 10':First body 101: Front end 101': front end 102: Terminal hole 102': Terminal hole 103: Long groove 200:Electrical connector 20: Second Body 21: Docking ring 210: docking cavity 211: Locking arm 212: Anti-fouling convex strip 22: Middle 220: Installation slot 221: beam 222: Buckle hole 23: cylindrical part 30:Terminal 40: first mask 40': first mask 41: Elastic arm 42: Closing part 42': Closing part 43: Front tube 44: rear tube 45:Connection 50: Second mask 60: The third mask 61: crimping part 611: V-shaped concave part 612: Gap 70: Cable combination 71: Cable 72: Wire core 80: Strain relief 90: Connector positioning device 91: horizontal board 99: Terminal positioning device

Claims

1. An electrical connector comprising a first body, a first shielding member covering the first body, and a pair of terminals located within the first body, the first body having a front end face, a rear end face, and a pair of terminal holes penetrating the front and rear end faces, the terminals being received within the terminal holes and not extending forward beyond the terminal holes, wherein, The first shielding member includes a tapered portion that extends forward beyond the front end face of the first body. The tapered portion gradually slopes inward from the first shielding member and is located in front of the front end face of the first body.

2. The electrical connector as claimed in claim 1, wherein, The electrical connector includes a second body, in which the first body and the first shield are housed, and the opening extends forward without exceeding the second body.

3. The electrical connector as claimed in claim 2, wherein, The distance between the constricted portion and the front end face of the first body is greater than the distance between the constricted portion and the front end face of the second body.

4. The electrical connector as claimed in claim 1, wherein, The first shielding member is provided with an elastic arm, and the first body is provided with a long groove corresponding to the elastic arm, and the elastic arm can undergo elastic deformation into the long groove.

5. The electrical connector as claimed in claim 1, wherein, The electrical connector includes a cable assembly connecting the terminals and a third shielding member covering the cable assembly. The cable assembly includes two parallel cables, and the third shielding member has crimping portions at corresponding two cables, the crimping portions substantially surrounding each cable.

6. The electrical connector as claimed in claim 5, wherein, Viewed from front to back, the crimping portion includes an inwardly crimped V-shaped recess located between the two cables.

7. The electrical connector as claimed in claim 6, wherein, The electrical connector further includes a second shield that connects the first shield and the third shield. The second shield wraps forward around the rear half of the first body and backward around the crimping portion of the third shield.

8. The electrical connector as claimed in claim 5, wherein, The electrical connector includes a stress relief member, which is sleeved on the cable assembly from back to front. The front end of the stress relief member is provided with a plurality of protruding rings. The electrical connector includes a second body, in which the first body, first, second and third shielding members are all located. The second body includes a cylindrical portion located at the rear end. The stress relief member is assembled forward into the cylindrical portion. The protruding rings interfere with the inner wall surface of the cylindrical portion.

9. The electrical connector as claimed in claim 2, wherein, The first shielding member includes a front tube portion having a first inner diameter and a rear tube portion having a second inner diameter, the second inner diameter being larger than the first inner diameter, and the tapering portion extending forward from the front tube portion with its inner diameter gradually decreasing.

10. The electrical connector as claimed in claim 4, wherein, The front end of the elastic arm is located behind the front end of the terminal.

Images