Electric connector

Abstract

The utility model provides an electric connector, which comprises an insulating body, a terminal module clamped on the inner side of the insulating body, a metal shell arranged on the insulating body and a metal cover covered on the metal shell, and the metal cover comprises a top cover, a pair of side covers and a rear cover, the side cover comprises a first fixing piece, a second fixing piece and a positioning piece which are distributed from front to back, the first fixing piece or the second fixing piece is connected with the bottom edge of the side cover through a supporting piece extending horizontally, and a glue hiding through hole is formed in the supporting piece. According to the utility model, the structure of the metal cover is optimized, and the glue hiding through holes on the supporting sheets are used for accommodating redundant glue, so that the glue is prevented from flowing around and arching up the metal cover and the terminal welding pins, the coplanarity of the welding pins of the terminal module and the circuit board during installation is improved, and the risks of pseudo soldering, missing soldering, short circuit and the like are avoided or reduced.

Description

Technical Field

[0001] The utility model relates to the field of electrical connection, in particular to an electrical connector. Background Art

[0002] The Type C USB connector is a widely used component in various digital and electronic products. It typically consists of an insulating plastic body, a terminal module, and a metal housing. The terminal module is typically enclosed within the insulating body. To ensure good signal transmission quality, existing Type C USB connectors also incorporate a metal isolation plate within the terminal module. This plate is sandwiched between the upper and lower rows of terminals to shield against interference signals. The metal housing surrounds the insulating body, securing the connector and providing both shielding and protection. Initially, the Type C connector is typically assembled and printed. At this point, adhesive is applied to secure the connector. This adhesive is typically applied to a surface or edge of the metal housing. However, in practice, the adhesive can easily cause the solder pins of the connector terminals to arch, creating the risk of cold solder joints, empty solder joints, or short circuits. Utility Model Content

[0003] The technical problem solved by the present invention is to provide an electrical connector to improve the risk in the prior art of excessive glue flowing to cause the metal shell to arch up, thereby causing terminal short circuits and the like.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: an electrical connector, comprising an insulating body, a terminal module clamped on the inner side of the insulating body, a metal shell mounted on the insulating body, and a metal cover arranged on the metal shell, the metal cover comprising a top cover, a pair of side covers and a back cover, the side cover comprising a first fixing plate, a second fixing plate and a positioning plate distributed from front to back, the first fixing plate or the second fixing plate is connected to the bottom edge of the side cover through a horizontally extending support plate, and a glue-containing through hole is provided on the support plate.

[0005] Furthermore, the support piece is in the shape of a flat plate, the glue-containing through hole passes through the upper and lower surfaces of the support piece in the vertical direction, and the support piece is integrally connected to the first fixing piece and the bottom edge of the side cover.

[0006] Furthermore, both the first fixing piece and the second fixing piece protrude outward beyond the outer surface of the side cover, and the protruding distance of the first fixing piece exceeds the protruding distance of the second fixing piece.

[0007] Furthermore, the first fixing plate and the second fixing plate are both vertically arranged to be inserted into a circuit board, and the first fixing plate and the second fixing plate are both provided with a through hole.

[0008] Furthermore, the width of the supporting piece in the front-to-back direction is greater than the width of the first fixing piece in the front-to-back direction.

[0009] Furthermore, the positioning piece is located at the rear edge of the side cover and is fixed to the back cover by a snap buckle, and a snap hole is provided on the positioning piece; the back cover includes a transversely extending main cover plate and a pair of folding plates bent forward and extended from both ends of the main cover plate, the main cover plate is integrally connected to the top cover, and the bottom edge of the main cover plate is provided with a pair of vertically extending plug pins.

[0010] Furthermore, the plug pin protrudes out of the bottom surface of the insulating body, the pair of folded plates overlap the outer surface of the positioning piece, and are provided with a protrusion that is clamped into the buckle hole.

[0011] Furthermore, a slot hole is provided on the side cover of the metal cover and is snap-fitted with the metal shell. The metal shell is provided with an outwardly protruding piece, and the outwardly protruding piece is snap-fitted into the slot hole.

[0012] Furthermore, the terminal module includes an upper row of terminals, a lower row of terminals and a metal partition. The metal partition is flat and has a pair of mounting feet on both side edges that are bent and extended outward. The mounting feet are integrally connected to the metal partition through a thickened portion, and the thickened portion is wider than the mounting feet.

[0013] Compared with the prior art, the present invention optimizes the structure of the metal cover and utilizes the glue-receiving holes on its supporting plate to accommodate excess glue, thereby preventing the glue from flowing around and arching the metal cover and the terminal soldering feet, improving the coplanarity of the soldering feet of the terminal module and the circuit board during installation, and avoiding or reducing the risks of cold solder joints, empty solder joints, short circuits, etc. 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 It is a three-dimensional diagram of the terminal module of the electrical connector of the present invention.

[0016] Figure 3 This is an exploded view of the electrical connector of the present invention.

[0017] Figure 4 It is a partial enlarged view of the metal shell of the electrical connector of the present invention. DETAILED DESCRIPTION

[0018] See also Figures 1 to 4As shown, the present invention provides an electrical connector, comprising: an insulating body 10 , a terminal module 20 clamped inside the insulating body 10 , a metal shell 30 mounted on the insulating body 10 , and a metal cover 40 covering the metal shell 30 .

[0019] The insulating body 10 is provided with a base 11 and a docking tongue 12 extending forward from the base 11. The upper and lower surfaces of the base 11 are provided with protrusions 13 for interfering and fixing with the metal shell 30. In addition, both ends of the base 11 are provided with C-shaped side surfaces 14 for abutting against the metal shell 30, and the side surfaces 14 are also provided with protrusions 13 for interfering and fixing with the metal shell 30. The docking tongue 12 is flat and is used to dock with a docking end electrical connector (not shown), and the upper and lower surfaces of the docking tongue 12 are used to support the terminal module 20. Preferably, a pair of raised positioning posts 15 are provided on the bottom or lower surface of the base 11, and the positioning posts 15 are used to position the insulating body 10 on a circuit board (not shown).

[0020] The terminal module 20 includes an upper row of terminals 210 and a lower row of terminals 220 distributed on the upper and lower sides of the docking tongue plate 12, and is used to achieve electrical connection with the docking end electrical connector (not shown). Figure 2 As shown, the ends of the upper row of terminals 210 and the lower row of terminals 220 extend out of the insulating body 10 for soldering to a circuit board, wherein the upper row of terminals 210 and the lower row of terminals 220 are each provided with a soldering foot 21, thereby being distributed into two rows of soldering feet 21 on the bottom surface of the insulating body 10, and the soldering feet 21 protrude from the bottom surface of the base 11 of the insulating body 10, and are soldered to the circuit board as the ends of the upper row of terminals 210 and the lower row of terminals 220. Preferably, the upper row of terminals 210 and the lower row of terminals 220 each include a pair of grounding terminals 22 located on the outermost side, and the outer edge of the grounding terminal 22 is provided with an integrally protruding overlapping foot 24 for overlapping to a metal partition 23 (as described below). Preferably, the terminal module 20 includes a metal partition 23 between the upper row of terminals 210 and the lower row of terminals 220. The metal partition 23 is flat and has a pair of mounting feet 25 extending outward from its two side edges. The mounting feet 25 are integrally connected to the metal partition 23 via a thickened portion 26. The thickened portion 26 is wider than the mounting feet 25. The ends of the mounting feet 25 extend vertically and perpendicular to the surface of the metal partition 23. In addition, the front edge of the metal partition 23 is provided with a plurality of vertically extending openings 27, which are embedded in the docking tongue 12.

[0021] The metal shell 30 includes a top wall 31, a bottom wall 32 and a pair of C-shaped side walls 33. A plug-in cavity 34 is formed between the top wall 31, the bottom wall 32 and the side walls 33, and the top wall 31 and the bottom wall 32 respectively cover the upper surface and the lower surface of the base 11. The top wall 31 is provided with a pair of elastic arms 35 protruding toward the plug-in cavity 34.

[0022] The metal cover 40 includes a top cover 41, a pair of side covers 42 and a back cover 43 that are integrally stamped. The pair of side covers 42 are integrally bent from both sides of the top cover 41 and together with the top cover 41 form a U-shaped structure. The top cover 41 covers the top wall 31 of the metal shell 30, and the side cover 42 covers the pair of side walls 33. The side cover 42 includes a first fixing piece 44, a second fixing piece 45 and a positioning piece 46 distributed from front to back. The first fixing piece 44 and the second fixing piece 45 extend in the vertical direction to be inserted into the circuit board for fixation, and the first fixing piece 44 and the second fixing piece 45 are arranged in front and back. The bottom edge of the side cover 42 is integrally connected to the first fixing piece 44 through a horizontally extending support piece 47. The support piece 47 is integrally connected between the bottom edge of the side cover 42 and the first fixing piece 44, and the width of the support piece 47 along the front-to-back direction is greater than the width of the first fixing piece 44 along the front-to-back direction, and is used to support the surface of the circuit board, which is beneficial for the metal cover 40 to be positioned between the circuit board during the board punching operation. In a preferred embodiment of the present utility model, the support piece 47 is flat, and a glue through hole 470 is provided on its surface. The glue through hole 470 passes through the upper and lower surfaces of the support piece 47 in the vertical direction. The setting of the glue through hole 470 is beneficial for glue to enter the hole during the flow process, thereby reducing excess glue between the lower surface of the support piece 47 and the circuit board, avoiding excessive glue that cannot be discharged and arching the support piece 47, and ensuring that there is no problem of cold soldering between the electrical connector and the circuit board. The second fixing piece 45 is located on the rear side of the first fixing piece 44 and is integrally connected to the side cover 42. The second fixing piece 45 is offset outward from the side cover 42 by a certain distance, thereby protruding outward beyond the outer surface of the side cover 42. It should be noted that the first fixing piece 44 also protrudes outward beyond the outer surface of the side cover 42, and the protruding distance of the first fixing piece 44 exceeds the protruding distance of the second fixing piece 45, that is, the distance between the first fixing piece 44 and the outer surface of the side cover 42 is greater than the distance between the second fixing piece 45 and the outer surface of the side cover 42. Preferably, each of the first fixing piece 44 and the second fixing piece 45 is provided with a through-hole 450, which is inserted into the circuit board to improve the bonding strength with the circuit board. The positioning piece 46 is located at the rear edge of the side cover 42 and is used for snap-fitting with the back cover 43. The positioning piece 46 is provided with a snap-fit ​​hole 460 for snap-fitting with the back cover 43.The back cover 43 extends laterally to the rear side of the U-shaped structure, and the back cover 43 includes a laterally extending main cover plate 430 and a pair of folding plates 431 extending forward from both ends of the main cover plate 430, the main cover plate 430 is integrally connected to the top cover 41, and the bottom edge of the main cover plate 430 is provided with a pair of vertically extending plug pins 432, the plug pins 432 protrude from the bottom surface of the base 11, the pair of folding plates 431 overlap the outer surface of the positioning piece 46, and are provided with a protrusion 433 that is clamped into the clamping hole 460, so that the folding plate 431 is clamped and positioned with the positioning piece 46.

[0023] Preferably, the side cover 42 of the metal cover 40 is also provided with a slot 421 that snaps into engagement with the side wall 33 of the metal shell 30. Correspondingly, the side wall 33 of the metal shell 30 is provided with an outwardly protruding tab 331. When the metal cover 40 is assembled with the metal shell 30, the outward protruding tab 331 is snapped into the slot 421.

[0024] Of course, as an alternative embodiment of the present invention, the support sheet 47 and the adhesive hole 470 can also be provided on the second fixing sheet 45, requiring only a simple design change. This also falls within the scope of the present invention and will not be further described here. In other words, the support sheet 47 and the adhesive hole 470 can be formed on the first fixing sheet 44 or the second fixing sheet 45.

[0025] In summary, the present invention optimizes the structure of the metal cover 40 and utilizes the glue storage holes 470 on its support plate 47 to accommodate excess glue, thereby preventing the glue from flowing around and arching the metal cover 40 and the terminal soldering feet 21, improving the coplanarity of the soldering feet 21 of the terminal module 20 and the circuit board during installation, and avoiding or reducing the risks of cold solder joints, empty solder joints, short circuits, etc.

[0026] 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 module clamped on the inner side of the insulating body, a metal shell mounted on the insulating body, and a metal cover covering the metal shell, characterized in that: The metal cover includes a top cover, a pair of side covers and a back cover. The side cover includes a first fixing plate, a second fixing plate and a positioning plate distributed from front to back. The first fixing plate or the second fixing plate is connected to the bottom edge of the side cover through a horizontally extending supporting plate, and a rubber through hole is provided on the supporting plate.

2. The electrical connector according to claim 1, wherein: The support sheet is in the shape of a flat plate, the glue-hiding through hole passes through the upper and lower surfaces of the support sheet in the vertical direction, and the support sheet is integrally connected to the first fixing sheet and the bottom edge of the side cover.

3. The electrical connector according to claim 2, wherein: The first fixing plate and the second fixing plate both protrude outward beyond the outer surface of the side cover, and the protruding distance of the first fixing plate exceeds the protruding distance of the second fixing plate.

4. The electrical connector according to claim 3, wherein: The first fixing plate and the second fixing plate are both vertically arranged to be inserted into a circuit board, and the first fixing plate and the second fixing plate are both provided with a through hole.

5. The electrical connector according to claim 4, wherein: The width of the supporting piece along the front-to-back direction is greater than the width of the first fixing piece along the front-to-back direction.

6. The electrical connector according to claim 5, wherein: The positioning piece is located at the rear edge of the side cover and is fixed with the back cover by a buckle, and a buckle hole is provided on the positioning piece; the back cover includes a transversely extending main cover plate and a pair of folding plates extending forward from both ends of the main cover plate, the main cover plate is integrally connected to the top cover, and a pair of vertically extending plug pins are provided at the bottom edge of the main cover plate.

7. The electrical connector according to claim 6, wherein: The plug-in pin protrudes out of the bottom surface of the insulating body, the pair of folding plates overlap the outer surface of the positioning piece, and are provided with a protruding portion that is clamped into the buckle hole.

8. The electrical connector according to claim 7, wherein: The side cover of the metal cover is also provided with a slot hole which is snap-fitted with the metal shell. The metal shell is provided with an outer protruding piece protruding outward, and the outer protruding piece is snap-fitted into the slot hole.

9. The electrical connector according to claim 8, wherein: The terminal module includes an upper row of terminals, a lower row of terminals and a metal partition. The metal partition is in the shape of a flat plate, and the two side edges of the metal partition are provided with a pair of mounting feet that are bent and extended outward as a whole. The mounting feet are integrally connected to the metal partition through a thickened portion, and the thickened portion is wider than the mounting feet.

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