TWI867951B - Anti-reverse insertion functional composite interface electrical connector - Google Patents

Abstract

A composite interface electrical connector with anti-reverse insertion function includes a plurality of terminals, an insulating structure and a metal shell. The insulation structure is combined with the terminals. The insulation structure includes a base, a tongue plate connected to the base, and a first accommodation structure connected to the base and located on opposite sides of the tongue plate. The butt portion of the terminal is provided on the tongue. On the opposite upper and lower surfaces of the plate, the fixing part is combined with the base, and the welding part protrudes from the side of the base away from the tongue plate. The metal shell is combined with the insulating structure, and the metal shell surrounds the tongue plate and the first accommodating structure to form a second accommodating structure and a pair of interfaces. The first accommodating structure is used to accommodate a first electrical connector corresponding to the first interface standard, and the second accommodating structure is used to accommodate a second electrical connector corresponding to the second interface standard. The first accommodating structure The structure is asymmetrical relative to a first axis, and the second accommodation structure is asymmetrical relative to a second axis.

Description

Composite interface electrical connector with reverse insertion prevention function

The present invention relates to the technical field of an electrical connector, and in particular to a composite interface electrical connector with a reverse insertion prevention function.

In order to connect with other electronic devices or electronic modules to complete signal transmission, electronic devices usually have multiple interfaces, such as the Universal Serial Bus (USB) interface on laptops or tablets, the HDMI or DisplayPort interface for image transmission, or the interface for inserting electronic cards. Due to the trend of thinning portable electronic devices, the thickness of laptops or tablets has been greatly reduced, and the overall size has also been reduced for easy carrying, so the number of interfaces is often reduced to accommodate thin designs. In some electronic devices, there may be multiple functions that must be set up with corresponding interfaces, such as different interfaces for connecting different image signal interfaces HDMI and DisplayPort. How to set up multiple interfaces and meet the requirements of thin design is an important issue in the current design of electrical connectors.

In view of this, the purpose of the present invention is to provide a composite interface electrical connector with anti-reverse plug-in function, which is used to integrate two interfaces with similar structures and sizes into one interface for use, and has a reverse plug-in prevention structure, thereby reducing the number of interfaces of electronic devices to facilitate the trend of thinning design.

An embodiment of the composite interface electrical connector with anti-reverse plug-in function of the present invention includes a plurality of terminals, an insulating structure and a metal shell. Each terminal includes a docking portion, a fixing portion and a welding portion, and the plurality of terminals are arranged into a first terminal row and a second terminal row in parallel. The docking portion of at least some of the terminals near the fixing portion corresponds to a first interface specification and the portion near the front end corresponds to a second interface specification. The insulating structure is coupled to the terminals, and the insulating structure includes a base, a tongue plate connected to the base, and a first accommodating structure connected to the base and located on opposite sides of the tongue plate. The docking portions of the terminals are arranged on the upper and lower surfaces of the tongue plate that are arranged oppositely, the fixing portions are coupled to the base, and the welding portions protrude from a side of the base away from the tongue plate. The metal shell is combined with the insulating structure, and the metal shell surrounds the tongue plate and the first accommodating structure to form a second accommodating structure and a pair of interfaces. The first accommodating structure is used to accommodate a first electrical connector corresponding to the first interface specification, and the second accommodating structure is used to accommodate a second electrical connector corresponding to the second interface specification. The first accommodating structure is asymmetric relative to a first axis, and the second accommodating structure is asymmetric relative to a second axis.

In another embodiment, the first accommodation structure includes a first stopper and a second stopper, the first stopper and the second stopper are arranged on opposite sides of the tongue plate, the first stopper has a first stopper inclined surface facing the tongue plate, the second stopper has a second stopper inclined surface facing the tongue plate, and the base has a first stopper surface, the first stopper surface is adjacent to the first stopper inclined surface and the second stopper inclined surface.

In another embodiment, the first limiting member further includes a limiting plane, and the limiting plane is adjacent to the first limiting inclined surface and the first stop surface.

In another embodiment, the first stop member further includes a second stop surface, which is parallel to the first stop surface and adjacent to the limit plane and the first limit inclined surface.

In another embodiment, the second containing structure includes a top wall, a bottom wall arranged opposite to the top wall, a limiting inclined wall connecting the top wall and the bottom wall, a first limiting vertical wall, and a second limiting vertical wall connecting the top wall and the bottom wall, and the limiting inclined wall and the first limiting vertical wall are arranged opposite to the second limiting vertical wall.

In another embodiment, the metal shell further includes a first limiting spring sheet, the first limiting spring sheet is arranged on the top wall, the first limiting spring sheet is arranged close to the first limiting member, and the side edge of the first limiting spring sheet is flush with the limiting plane.

In another embodiment, the first limit spring sheet includes a first connecting portion and a first elastic arm portion, the top wall has a first notch near the limit inclined wall, one end of the first connecting portion is connected to a side of the first notch near the docking port, the first elastic arm portion is connected to the free end of the first connecting portion and extends parallel to the first connecting portion, and the first elastic arm portion is bent into the second accommodating structure.

In another embodiment, the metal shell further includes a second limiting spring piece, the second limiting spring piece is arranged on the bottom wall, the second limiting spring piece is arranged close to the first limiting member and is arranged opposite to the first limiting spring piece.

In another embodiment, the second limit spring sheet includes a second connection portion and a second elastic arm portion, the bottom wall has a second notch near the limit inclined wall, one end of the second connection portion is connected to a side of the second notch near the docking port, the second elastic arm portion is connected to the free end of the first connection portion and extends parallel to the second connection portion, and the second elastic arm portion is bent into the second accommodating structure.

In another embodiment, the metal shell further includes a plurality of third limit springs, which are arranged on the bottom wall and correspond to the lower surface of the tongue plate.

The composite interface electrical connector with reverse plug-in prevention function of the present invention integrates two different interface specifications into one electrical connector. The first accommodating structure formed on the insulating structure and the second accommodating structure formed on the metal shell are used to accommodate the first electrical connector of the first interface specification and the second electrical connector of the second interface specification respectively. The first accommodating structure and the second accommodating structure each form an asymmetric structure, which can prevent the first electrical connector or the second electrical connector from being reversely plugged in.

1: Composite interface electrical connector with anti-reverse insertion function

10: Terminals

10a: Docking section

10b: Fixed part

10c: Welding section

20: Insulation structure

21: Base

22: Tongue plate

23: First accommodating structure

30:Metal shell

31: Second accommodating structure

32: Docking port

33: The first limiting spring

34: Second limit spring

35: The third limiting spring

211: First stop surface

221: Upper surface

222: Lower surface

231: First limiter

232: Second limiter

311: Top wall

312: Bottom wall

313: Limiting inclined wall

314: First limiting vertical wall

315: Second limiting vertical wall

316: The first gap

317: The second gap

331: First connection part

332: First arm part

341: Second connection part

342: Second elastic arm

2311: First limiting slope

2312: Limit plane

2313: Second stop surface

2321: Second limiting slope

A: First terminal row

B: Second terminal row

E1: First electrical connector

E11: Metal housing

E2: Second electrical connector

E21: Metal housing

L1: First axis

L2: Second axis

Figure 1 is a three-dimensional diagram of an embodiment of the composite interface electrical connector with reverse insertion prevention function of the present invention.

Figure 2 is a three-dimensional exploded view of the composite interface electrical connector with reverse insertion prevention function shown in Figure 1.

Figures 3 to 5 are schematic diagrams of the manufacturing process of the composite interface electrical connector with anti-reverse insertion function shown in Figure 1.

FIG6 is a perspective view of the metal shell and the insulating structure of the composite interface electrical connector with anti-reverse insertion function in FIG1.

FIG. 7 is a three-dimensional diagram of the composite interface electrical connector with reverse insertion prevention function shown in FIG. 1 from another perspective.

FIG8 is a front view of the composite interface electrical connector with anti-reverse insertion function shown in FIG1.

FIG9 is a three-dimensional diagram of the first electrical connector being connected to the composite interface electrical connector with anti-reverse insertion function of the present invention.

Figure 10 is a top view of Figure 9.

Figure 11 is a cross-sectional view of Figure 10 along line A-A.

FIG. 12 is a three-dimensional diagram of the second electrical connector being connected to the composite interface electrical connector with anti-reverse insertion function of the present invention.

Figure 13 is a top view of Figure 12.

Figure 14 is a cross-sectional view of Figure 13 along line B-B.

FIG. 15 is a three-dimensional diagram of the first electrical connector and the composite interface electrical connector with reverse insertion prevention function of the present invention being reversed.

Figure 16 is a top view of Figure 15.

Figure 17 is a cross-sectional view of Figure 16 along line C-C.

Please refer to Figures 1, 2, 3, 4 and 5, which show an embodiment of the anti-reverse plug-in function type composite interface electrical connector of the present invention. The anti-reverse plug-in function type composite interface electrical connector 1 of this embodiment includes a plurality of terminals 10, an insulating structure 20 and a metal shell 30.

Each terminal 10 includes a docking portion 10a, a fixing portion 10b and a welding portion 10c, and the plurality of terminals 10 are arranged in parallel to a first terminal row A and a second terminal row B. At least a portion of the docking portion 10a of the terminal 10 near the fixing portion 10b corresponds to a first interface specification, and at least a portion of the docking portion 10a of the terminal 10 near the front end corresponds to a second interface specification. The first interface specification of this embodiment is a high-definition multimedia interface (HDMI), and the second interface specification is DisplayPort. However, the present invention is not limited thereto, and other interface specifications are also applicable. The first terminal row A has 11 terminals, corresponding to 10 pins, and the connecting portion 10a of the two terminals 10 of the 10th pin is arranged in a straight line. The second terminal row B has 11 terminals, and the connecting portion 10a of the two terminals 10 of the 9th pin is arranged in a straight line, which is used to correspond to the pins of different signals of the first interface specification and the second interface specification.

The insulating structure 20 is combined with the terminals 10, and the insulating structure 20 includes a base 21, a tongue plate 22 connected to the base 21, and a first accommodating structure 23 connected to the base 21 and located on opposite sides of the tongue plate 22. The mating portion 10a of the terminal 10 of the first terminal row A is arranged on the upper surface 221 of the tongue plate 22, and the mating portion 10a of the terminal 10 of the second terminal row B is arranged on the lower surface 222 of the tongue plate 22. The fixing portion 10b of the terminal 10 is combined with the base 21, and the welding portion 10c of the terminal 10 protrudes from the side of the base 21 away from the tongue plate 22. The welding portions 10c of all the terminals 10 of this embodiment are arranged in a row. The first accommodating structure 23 is used to accommodate a first electrical connector corresponding to the first interface specification.

The metal housing 30 is combined with the insulating structure 20, and the metal housing 30 surrounds the tongue plate 22 and the first receiving structure 23 to form a second receiving structure 31 and a docking port 32. The docking port 32 is used for inserting a handheld electrical connector. The second receiving structure 31 is used to accommodate a second electrical connector corresponding to the second interface specification.

Please refer to Figure 8. The first accommodating structure 23 includes a first stopper 231 and a second stopper 232. The first stopper 231 and the second stopper 232 are convex block structures and are convexly disposed on the base 21. The base 21 has a first stopper surface 211 on a side connected to the tongue plate 22. The first stopper 231 and the second stopper 232 are convexly disposed on the first stopper surface 211. The first stopper 231 and the second stopper 232 are disposed on opposite sides of the tongue plate 22.

The first limiting member 231 is provided with a first limiting inclined surface 2311 and a limiting plane 2312 on the side facing the tongue plate 22. The first limiting inclined surface 2311 is connected to the limiting plane 2312, and the limiting plane 2312 is located above the first limiting inclined surface 2311. The connection between the first limiting inclined surface 2311 and the limiting plane 2312 is arc-shaped. The first limiting inclined surface 2311 and the limiting plane 2312 are both adjacent to the first stop surface 211 and perpendicular to the first stop surface 211. The first limiting member 231 is provided with a second stop surface 2313 on the plane facing the docking port 32. The first limiting inclined surface 2311 and the limiting plane 2312 are both perpendicular to the second stop surface 2313.

The second limiting member 232 has a second limiting inclined surface 2321 facing the tongue plate 22, and the second limiting inclined surface 2321 is perpendicular to the first stop surface 211. The side of the second limiting member 232 opposite to the second limiting inclined surface 2321 abuts against the side wall of the metal shell 30. In this way, the first accommodating structure 23 forms an asymmetric structure relative to a first axis L1, and the first axis L1 is perpendicular to the extension direction of the tongue plate 22.

Please refer to FIG. 6 and FIG. 7 together. The second accommodating structure 31 includes a top wall 311, a bottom wall 312 disposed opposite to the top wall 311, a limiting inclined wall 313 and a first limiting upright wall 314 connecting the top wall 311 and the bottom wall 312, and a second limiting upright wall 315 connecting the top wall and the bottom wall. The limiting inclined wall 313 is connected to the first limiting upright wall 314 and the bottom wall 312, and the first limiting upright wall 314 is connected to the top wall 311 and the limiting inclined wall 313. The limiting inclined wall 313 and the first limiting upright wall 314 are opposite to the second limiting upright wall 315. The second limiting member 232 of the first accommodating structure 23 abuts against the second limiting upright wall 315, so that the second limiting inclined surface 2321 of the second limiting member 232 is adjacent to the second limiting upright wall 315. The second accommodating structure 31 is asymmetric relative to the first axis L1, and the second accommodating structure 31 is asymmetric relative to a second axis L2. The second axis L2 is parallel to the extension direction of the tongue plate 22.

Since the size and structure of the first electrical connector of the first interface specification are different from the size and structure of the second electrical connector of the second interface specification, the structure of the metal housing 30 is matched with the second electrical connector of larger size. Therefore, in order to enable the first electrical connector of smaller size to accurately dock with the tongue plate, multiple limit structures are provided on the metal housing 30.

The metal housing 30 further includes a first position-limiting elastic sheet 33, which is disposed on the top wall 311 of the second accommodating structure 31. The first position-limiting elastic sheet 33 is disposed near the first position-limiting member 231 of the first accommodating structure 23 of the insulating structure 20. The first position-limiting elastic sheet 33 includes a first connecting portion 331 and a first elastic arm portion 332. The top wall 311 has a first notch 316 near the first position-limiting upright wall 314. One end of the first connecting portion 331 is connected to one side of the first notch 316 near the docking port 32. The first elastic arm portion 332 is connected to the free end of the first connecting portion 331 and extends parallel to the first connecting portion 331, so that the first position-limiting elastic sheet 33 forms a U-shape. The first elastic arm portion 332 is bent into the interior of the second accommodating structure 31. The side edge of the first elastic arm portion 332 is flush with the limiting plane 2312 of the first limiting member 231 of the first accommodating structure 23.

The metal shell 30 further includes a second limiting elastic sheet 34, which is disposed on the bottom wall 312 of the second accommodating structure 31. The second limiting elastic sheet 34 is disposed near the first limiting member 231 of the first accommodating structure 23 of the insulating structure 20 and is disposed opposite to the first limiting elastic sheet 33. The second limiting elastic sheet 34 includes a second connecting portion 341 and a second elastic arm portion 342. The bottom wall 312 has a second notch 317 near the limiting inclined wall 313. One end of the second connecting portion 341 is connected to one side of the second notch 317 near the docking port 32. The second elastic arm portion 342 is connected to the free end of the first connecting portion 341 and extends parallel to the second connecting portion 341. The second elastic arm portion 342 is bent into the interior of the second accommodating structure 31.

The metal shell 30 further includes a plurality of third limit springs 35, which are disposed on the bottom wall 312 and correspond to the lower surface 222 of the tongue plate 22. The third limit springs 35 are bent into the interior of the second accommodating structure 31.

Please refer to FIG. 9, FIG. 10 and FIG. 11, which show the state of the first electrical connector E1 of the first interface specification being inserted into the anti-reverse insertion function type composite interface electrical connector 1 of the present invention. When the first electrical connector E1 is inserted into the metal shell 30, the metal shell E11 of the first electrical connector E1 is limited by the first limit spring 33, the second limit spring 34 and the third limit spring 35, and is guided to move toward the first accommodating structure 23, and finally the two sides of the metal shell E11 of the first electrical connector E1 are respectively against the first limit member 231 of the first accommodating structure 23. and the second stopper 232, the top of the metal shell E11 of the first electrical connector E1 abuts against the top wall 311 of the second accommodating structure 31 of the metal shell 30, the bottom of the metal shell E11 of the first electrical connector E1 abuts against the third stopper spring 35, and the front end of the metal shell E11 of the first electrical connector E1 abuts against the first stopper surface 211 of the base 21 of the insulating structure 20. In this way, the first electrical connector E1 is connected to the composite interface electrical connector 1 with the function of preventing reverse insertion.

Please refer to FIG. 12 , FIG. 13 and FIG. 14 , which show the state where the second electrical connector E2 of the second interface specification is inserted into the anti-reverse insertion type composite interface electrical connector 1 of the present invention. When the second electrical connector E2 is inserted into the metal housing 30, the metal housing E21 of the second electrical connector E2 is accommodated in the second accommodation structure 31 of the metal housing 30, the first limiting spring 33, the second limiting spring 34 and the third limiting spring 35 are clamped on the metal housing E21 of the second electrical connector E2, and the front end of the metal housing E21 of the second electrical connector E2 abuts against the second stop surface 2313 of the first accommodation structure 23 of the insulating structure 20, so that the second electrical connector E2 is connected to the composite interface electrical connector 1 with the function of preventing reverse insertion.

Please refer to Figures 15, 16 and 17, which show the first electrical connector E1 of the first interface specification and the composite interface electrical connector 1 with the function of preventing reverse insertion of the present invention in a reverse insertion state. When the first electrical connector E1 is inserted into the composite interface electrical connector 1 with the function of preventing reverse insertion of the present invention in a reverse posture, since the first accommodation structure 23 of the insulating structure 20 is an asymmetric structure, the first electrical connector E1 cannot enter the first accommodation structure 23, so that the terminal of the first electrical connector E1 cannot form a docking with the terminal 10 of the composite interface electrical connector 1 with the function of preventing reverse insertion of the present invention. The effect of preventing reverse insertion can be achieved by making the first accommodation structure 23 an asymmetric structure.

The composite interface electrical connector with reverse plug-in prevention function of the present invention integrates two different interface specifications into one electrical connector. The first accommodating structure formed on the insulating structure and the second accommodating structure formed on the metal shell are used to accommodate the first electrical connector of the first interface specification and the second electrical connector of the second interface specification respectively. The first accommodating structure and the second accommodating structure each form an asymmetric structure, which can prevent the first electrical connector or the second electrical connector from being reversely plugged in.

However, the above is only the preferred embodiment of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. That is, all simple equivalent changes and modifications made according to the scope of the patent application and the new description of the present invention are still within the scope of the present invention. In addition, any embodiment of the present invention or the scope of the patent application does not need to achieve all the purposes, advantages or features disclosed by the present invention. In addition, the abstract and title are only used to assist in searching for patent documents, and are not used to limit the scope of the rights of the present invention. In addition, the terms "first" and "second" mentioned in this specification or the scope of the patent application are only used to name the element or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements.

10: Terminals

22: Tongue plate

33: The first limiting spring

34: Second limit spring

211: First stop surface

231: First limiter

232: Second limiter

311: Top wall

312: Bottom wall

313: Limiting inclined wall

314: First limiting vertical wall

315: Second limiting vertical wall

332: First arm part

342: Second elastic arm

A: First terminal row

B: Second terminal row

L1: First axis

Claims (10)

A composite interface electrical connector with an anti-reverse plug-in function, comprising: a plurality of terminals, each of which comprises a mating portion, a fixing portion and a welding portion, wherein the plurality of terminals are arranged in parallel into a first terminal row and a second terminal row, wherein at least a portion of the mating portion of the terminals close to the fixing portion corresponds to a second interface specification, and at least a portion of the terminals close to the front end corresponds to a first interface specification; an insulating structure, combined with the terminals, comprising a base, a tongue plate connected to the base, and a first accommodating structure connected to the base and located on opposite sides of the tongue plate, wherein the mating portions of the terminals are connected to the fixing portion and the welding portion are connected to the first terminal row. The fixing parts are arranged on the upper and lower surfaces of the tongue plate, the fixing parts are combined with the base, and the welding parts protrude from the base on a side away from the tongue plate; and a metal shell is combined with the insulating structure, and the metal shell surrounds the tongue plate and the first accommodating structure to form a second accommodating structure and a docking interface; wherein the first accommodating structure is used to accommodate a first electrical connector corresponding to the first interface specification, and the second accommodating structure is used to accommodate a second electrical connector corresponding to the second interface specification, and the first accommodating structure is asymmetric relative to a first axis, and the second accommodating structure is asymmetric relative to a second axis. The composite interface electrical connector with reverse plug-in prevention function as described in claim 1, wherein the first accommodation structure includes a first stopper and a second stopper, the first stopper and the second stopper are arranged on opposite sides of the tongue plate, the first stopper has a first stopper inclined surface facing the tongue plate, the second stopper has a second stopper inclined surface facing the tongue plate, and the base has a first stopper surface, the first stopper surface is adjacent to the first stopper inclined surface and the second stopper inclined surface. The composite interface electrical connector with reverse plug-in prevention function as described in claim 2, wherein the first limiting member further includes a limiting plane, the limiting plane is adjacent to the first limiting inclined surface and the first stop surface. As described in claim 3, the composite interface electrical connector with anti-reverse insertion function, wherein the first stop member further includes a second stop surface, the second stop surface is parallel to the first stop surface and is adjacent to the stop plane and the first stop slope. The composite interface electrical connector with reverse plug-in prevention function as described in claim 2, wherein the second accommodation structure includes a top wall, a bottom wall arranged opposite to the top wall, a limiting inclined wall and a first limiting vertical wall connecting the top wall and the bottom wall, and a second limiting vertical wall connecting the top wall and the bottom wall, wherein the limiting inclined wall and the first limiting vertical wall are arranged opposite to the second limiting vertical wall. As described in claim 5, the composite interface electrical connector with anti-reverse insertion function, wherein the metal shell further includes a first limiting spring sheet, the first limiting spring sheet is arranged on the top wall, the first limiting spring sheet is arranged close to the first limiting member, and the side edge of the first limiting spring sheet is flush with the limiting plane. As described in claim 6, the composite interface electrical connector with reverse plug-in prevention function, wherein the first limit spring sheet includes a first connection portion and a first spring arm portion, the top wall has a first notch near the limit inclined wall, one end of the first connection portion is connected to a side of the first notch near the docking port, the first spring arm portion is connected to the free end of the first connection portion and extends parallel to the first connection portion, and the first spring arm portion is bent into the interior of the second accommodating structure. As described in claim 7, the composite interface electrical connector with anti-reverse insertion function, wherein the metal shell further includes a second limit spring, the second limit spring is arranged on the bottom wall, the second limit spring is arranged near the first limit member and is arranged opposite to the first limit spring. As described in claim 8, the composite interface electrical connector with reverse plug-in prevention function, wherein the second limit spring sheet includes a second connection portion and a second elastic arm portion, the bottom wall has a second notch near the limit inclined wall, one end of the second connection portion is connected to a side of the second notch near the docking port, the second elastic arm portion is connected to the free end of the first connection portion and extends parallel to the second connection portion, and the second elastic arm portion is bent into the second accommodating structure. As described in claim 5, the composite interface electrical connector with anti-reverse insertion function, wherein the metal shell further includes a plurality of third limiting springs, which are arranged on the bottom wall and correspond to the lower surface of the tongue plate.

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