CN219144557U - Electric connector - Google Patents

Abstract

The utility model provides an electric connector, which comprises an insulating body, a terminal fixed on the insulating body, a metal shell covered on the periphery of the insulating body and a cover body covered on the surface of the metal shell, wherein the metal shell is provided with a top cover, a bottom cover, a pair of side covers and a containing cavity, the cover body is provided with a substrate covered on the top cover and a pair of side baffles covered on the side covers, and the side covers of the metal shell and the side baffles of the cover body are provided with protrusions and buckling holes which are mutually in buckling fit. Compared with the prior art, the structure of the metal shell and the cover body is optimized, and the metal shell and the cover body can be reliably clamped together by adopting the buckling mode of the protrusions and the buckling holes, so that the defects of a tearing forming process and a tearing structure are avoided.

Description

Electric connector

Technical Field

The present disclosure relates to electrical connectors, and particularly to an electrical connector.

Background

With the trend of miniaturization, thinness and thinness of consumer electronic products such as notebooks, tablet computers and mobile phones, the requirements on the design and manufacturing process of parts of the products are higher, and as the products are increasingly thinner and thinner, the internal space of the products is also very narrow, so that the products are required to be densely distributed, and for some electric connectors with higher requirements on signal transmission quality, the densely compact arrangement can possibly generate mutual interference of signals, therefore, a metal shielding cover body is assembled on the surface of the electric connector, and the shielding cover body is utilized to strengthen the shielding effect on external interference signals. For some electrical connectors with metal housings, signal interference may still be encountered, in this case, the shielding housing needs to be additionally mounted on the metal housing, reliable signal shielding is achieved through a double-layer metal structure, and for the combination of the shielding housing and the metal housing, the existing electrical connector is usually provided with a snap arm formed by tearing a part of the metal housing, and the snap arm is in snap fit with a pre-set bayonet hole on the shielding housing, so that the shielding housing is mounted on the metal housing. However, the tearing process generally forms a larger tearing area on the metal shell, and the tearing-molded fastening arms are shorter and have stronger rigidity, so that the shielding cover body is easily supported to be deformed when assembled on the metal shell, thereby affecting the position accuracy of the shielding cover body, and causing that the fastening combination of the two fastening arms is easy to be not fastened in place. In addition, the cost of the tearing process is relatively high.

Disclosure of Invention

The utility model provides an electric connector, which solves the problem of poor assembly of a cover body and a metal shell in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides an electric connector, includes insulator, the terminal of fixing on insulator, cover in insulator peripheral metal casing and cover the cover body of locating metal casing surface, the metal casing is equipped with a top cap, a bottom, a pair of side cap and a chamber of acceping, the cover body is equipped with the base plate that covers on the top cap and covers a pair of side shield on the side cap, be equipped with mutual snap fit's protrusion and buckle hole on the side cap of metal casing with on the side shield of cover body.

Further, the protrusion is formed on a side cover of the metal case, and does not penetrate the side cover; the buckling holes are formed in the side baffle plate of the cover body and penetrate through the side baffle plate inwards; the protrusions and the buckling holes are round.

Further, the protrusion is formed at a central position of the side cover, and the protrusion is equidistant from the top cover and the bottom cover.

Further, the protrusions are formed on the side barriers of the cover body and do not penetrate through the side barriers; the fastening hole is formed on the side cover of the metal shell and penetrates through the side cover inwards; the protrusions and the buckling holes are round.

Further, the top cover of the metal shell is fixed with the base plate of the cover body through welding.

Further, the insulating body is provided with a first butt joint part and a second butt joint part which are integrally connected; the top cover is provided with a pair of folding sheets which downwards protrude into the accommodating cavity, and the accommodating cavity is divided into a first cavity for accommodating the first butt joint part, a second cavity for accommodating the second butt joint part and a third cavity between the first cavity and the second cavity by the pair of folding sheets.

Further, the metal casing is equipped with a front shroud that forms from the front side limit of top cap buckling downwards, the front shroud perpendicular to top cap and bottom, and the both sides edge an organic whole of front shroud has a pair of extension arm to the horizontal extension of back, the extension arm with the mutual joint cooperation of folded sheet and both bottom edge and trailing edge all are the flush setting.

Further, the cover body is provided with a rear baffle plate which is bent backwards and extends from the rear side edge of the base plate, the rear baffle plate extends longitudinally, and the rear baffle plate is positioned at the rear side of the base plate and the top cover and is lower than the base plate and the top cover.

Further, a pair of fixing feet protruding downwards are formed at the bottom edge of the side baffle, mounting feet formed by downwards bending and extending are arranged at the two longitudinal ends of the rear baffle, and the pair of fixing feet and the mounting feet are distributed along the front-rear direction.

Compared with the prior art, the structure of the metal shell and the cover body is optimized, and the metal shell and the cover body can be reliably clamped together by adopting the buckling mode of the protrusions and the buckling holes, so that the defects of a tearing forming process and a tearing structure are avoided.

Drawings

Fig. 1 is a perspective view of an electrical connector according to the present utility model.

Fig. 2 is an exploded perspective view of the electrical connector according to the present utility model.

Fig. 3 is a perspective view of a metal housing of the electrical connector according to the present utility model.

Fig. 4 is a schematic diagram showing the combination of the metal housing and the cover of the electrical connector according to the present utility model.

Detailed Description

Referring to fig. 1 to 4, the present utility model provides an electrical connector, which includes an insulation body 10, a terminal 20 fixed on the insulation body 10, a metal housing 30 covering the periphery of the insulation body 10, and a cover 40 covering the surface of the metal housing 30, wherein the insulation body 10 is obtained by injection molding, the terminal 20 is obtained by integral stamping, the two are integrated together for electrical butt-joint with a butt-joint end electrical connector, and the metal housing 30 and the cover 40 are used for providing reliable protection for electrical connection of the terminal 20 to shield interference of external signals. The specific structure of each of the foregoing components is described in detail below.

As shown in fig. 1 and 2, the insulating body 10 is provided with a main body 11, a first butt joint portion 12 and a second butt joint portion 13 protruding from the main body 11 forward integrally, and a blocking portion 14 located between the first butt joint portion 12 and the second butt joint portion 13, wherein the main body 11, the first butt joint portion 12, the second butt joint portion 13 and the blocking portion 14 are integrally connected, and are obtained by integrally injection molding insulating plastics. The main body 11 extends longitudinally, a rear extension portion 15 protruding backward is disposed at the rear side of the main body 11, a C-shaped surface 110 is disposed at two ends of the main body 11 longitudinally, the rear extension portion 15 also extends longitudinally and extends to the right rear of the first butt joint portion 12 and the second butt joint portion 13, and preferably, the rear extension portion 15 is flat and has a flat top surface, and the top surface is lower than the top surface of the main body 11. The first abutting portion 12, the blocking portion 14, and the second abutting portion 13 are sequentially arranged from left to right or from right to left, preferably, the first abutting portion 12 and the second abutting portion 13 have the same structure, and taking the first abutting portion 12 as an example, the first abutting portion 12 is provided with a base 120 and a tongue plate portion 121 (correspondingly, the second abutting portion 13 is provided with the base 130 and the tongue plate portion 131) integrally extending forward from the base 120, the thickness of the base 120 is greater than the thickness of the tongue plate portion 121, and the base 120 is integrally connected with the front end face 111 of the main body 11. The blocking part 14 is integrally connected with the main body 11 and is located between the first abutting part 12 and the second abutting part 13, the blocking part 14 is provided with a top surface 140, a front end surface 141 and a pair of side surfaces 142, the top surface 140 is arranged flush with the top surface of the main body 11, the top surface 140 of the blocking part 14 is also provided with an upward protruding rib 143, and the rib 143 is higher than the top surface 140 of the blocking part 14 and the top surface of the main body 11 and is used for clamping and matching with the metal shell 30; the front end surface 141 is a flat surface facing the mating end electrical connector, and the front end surface 141 protrudes forward beyond the first mating portion 12 and the second mating portion 13, and in addition, the side surfaces 142 of the blocking portion 14 extend vertically and face the first mating portion 12 and the second mating portion 13, respectively, preferably, two side edges of the blocking portion 14 are further formed with flange portions 144 located above the side surfaces 142, and the flange portions 144 protrude toward the first mating portion 12 and the second mating portion 13 and protrude beyond the side surfaces 142.

The terminals 20 include a first terminal module 21 fixed on the first docking portion 12, and a second terminal module 22 fixed on the second docking portion 13, wherein the first terminal module 21 and the second terminal module 22 each include a plurality of terminals 20, and the plurality of terminals 20 are distributed on the upper and lower surfaces of the first docking portion 12 and the second docking portion 13 for electrically connecting with the docking-end electrical connector. Preferably, the number of the terminals 20, the structure of the terminals 20 and the distribution manner of the terminals 20 in the first terminal module 21 and the second terminal module 22 are the same, and the first terminal module 21 and the second terminal module 22 are provided with welding pins 23 protruding backward from the insulating body 10, the welding pins 23 are located below the rear extension 15, and part of the welding pins protrude backward from the rear extension 15, and part of the welding pins are covered by the rear extension 15.

As shown in fig. 2 and 3, the metal housing 30 is provided with a top cover 31, a bottom cover 32, a pair of side covers 33 and a front cover 34, the top cover 31 and the bottom cover 32 are disposed parallel to each other, the pair of side covers 33 are located at two ends of the top cover 31 and the bottom cover 32 and integrally connected with the top cover 31 and the bottom cover 32, the top cover 31, the bottom cover 32 and the side covers 33 are integrally formed by stamping metal plates and jointly form a containing cavity 35 for containing the insulating body 10, and preferably, the side covers 33 are C-shaped for being mounted in a matching manner with the C-shaped surface 110. The top cover 31 is provided with at least one opening 310 and a pair of folding tabs 311 bent downwards from the inner edges of the opening 310, the opening 310 penetrates the accommodating cavity 35 downwards, the pair of folding tabs 311 extend downwards into the accommodating cavity 35, and divide the accommodating cavity 35 into three areas, namely a first cavity 351, a second cavity 352 and a third cavity 353 between the first cavity 351 and the second cavity 352, which respectively accommodate the first butt joint part 12, the second butt joint part 13 and the blocking part 14, it should be noted that the number of the openings 310 can be one or two, when the number of the openings 310 is 1, the pair of folding tabs 311 are bent downwards from two opposite inner edges of the opening 310, and when the number of the openings 310 is two, the pair of folding tabs 311 are respectively formed at the inner edges of the two openings 310, in the preferred embodiment of the utility model, the number of the openings 310 is two; it should be noted that the first cavity 351 and the second cavity 352 are formed between the folded piece 311 and the side cover 33, the third cavity 353 is formed between the folded piece 311, the folded piece 311 is attached to two sides of the blocking portion 14, a folded concave portion 312 matching the flange portion 144 is provided, and the folded piece 311 is further formed with a tab 38 facing the first cavity 351 and the second cavity 352; the top cover 31 is further provided with a spring plate 36 protruding downwards at a position corresponding to the first cavity 351 and the second cavity 352, and the spring plate 36 protrudes downwards from the top cover 31 into the first cavity 351 and the second cavity 352 for being pressed and connected to the electric connector at the butt end. The front cover 34 is sheet-shaped and is covered on the front side of the third cavity 353 and is vertically disposed, the front cover 34 is bent and extended from the front side edge of the top cover 31, the front cover 34 is covered on the front side of the third cavity 353, and is used for covering the blocking portion 14 in the third cavity 353, that is, the front end face 141 of the blocking portion 14 is covered by the front cover 34, preferably, two sides of the front cover 34 are integrally connected with a pair of extending arms 37 extending backwards, the extending arms 37 extend horizontally from two side edges of the front cover 34 backwards and extend into the first cavity 351 and the second cavity 352 respectively, the extending arms 37 are disposed opposite to the side cover 33, a bayonet 39 for accommodating the tab 38 is formed on each extending arm 37, so that the extending arms 37 and the folded piece 311 are clamped together to form a relatively stable and reliable structure, and the bottom edges S1 and the rear side edges S2 of the extending arms 37 and the folded piece 311 are flush. The dimension of the front cover 34 in the vertical direction is larger than the dimension of the extension arm 37 in the vertical direction. As can be seen from the above, the metal housing 30 is formed by integrally stamping a metal plate, and two interfaces are formed on the mating sides of the pair of tabs 311, so that the two electrical connectors at the mating ends can be inserted simultaneously by using the dual-interface structure.

As shown in fig. 2, the cover 40 is disposed on the surface of the metal housing 30 from top to bottom, and the cover 40 is provided with a longitudinally extending base plate 41, side baffles 42 bent and extended downward from two longitudinal ends of the base plate 41, and rear baffles 43 bent and extended rearward from the rear side edges of the base plate 41, the base plate 41 is covered on the top cover 31 of the metal housing 30, and through holes 44 corresponding to the positions of the spring plates 36 are formed on the base plate 41, so that the spring plates 36 are exposed in the through holes 44 and are in a visible state, and holes are not formed in the middle position of the base plate 41, so that the openings 310 of the top cover 31 below the base plate are completely covered, thereby providing a better protection effect. The side shield 42 has a pair of fixing legs 45 formed at the bottom side thereof to be fixed to a circuit board (not shown). The rear baffle 43 extends longitudinally and is located at the rear side of the base plate 41 and the top cover 31 but is lower than the base plate 41 and the top cover 31, and is used for covering the surface of the rear extension portion 15 of the insulating body 10, so as to play a role of shielding signals on the welding pins 23 below the rear extension portion 15, and mounting pins 46 formed by bending and extending downwards are arranged at two longitudinal ends of the rear baffle 43 and are used for being mounted on the circuit board (not shown), and the pair of fixing pins 45 and the mounting pins 46 are distributed along the front-rear direction. In this way, the cover 40 is securely soldered to a circuit board (not shown) by the fasteners and mounting feet 46.

It should be noted that, in order to enhance the connection reliability between the cover 40 and the metal housing 30, in the preferred embodiment of the present utility model, at least one fastening hole 421 is formed on the two side plates 42 of the cover 40, the fastening hole 421 penetrates the side plates 42 inside and outside, and accordingly, at least one protrusion 331 is formed on the pair of side covers 33 of the metal housing 30, the protrusion 331 does not penetrate the side covers 33, as shown in fig. 4, the protrusion 331 is fastened to the fastening hole 421, so that the metal housing 30 and the cover 40 are fastened to each other, preferably, the protrusion 331 and the fastening hole 421 are circular, the fastening hole 421 is interposed between the pair of fixing legs 45 and penetrates the side plates 42 inside and outside, and the protrusion 331 is formed in the center of the side covers 33, which is equidistant from the top cover and the bottom cover. Of course, the positions of the protrusion 331 and the fastening hole 421 may be interchanged, that is, the protrusion 331 is disposed on the side baffle 42 of the cover 40, and the fastening hole 421 is disposed on the side cover 33 of the metal housing 30, so that the fastening between the cover 40 and the metal housing 30 can still be achieved, which is also within the scope of the present utility model. In addition, the cover 40 and the metal housing 30 may be additionally reinforced by welding, and the cover 40 and the metal housing 30 may be firmly combined together by welding, fastening the fastening hole 421 and the protrusion 331.

The utility model optimizes the structure of the insulating body 10 and the metal shell 30, so that the structure of the insulating body 10 and the metal shell 30 is provided with two double-interface structures, the plugging of two butt-joint end connectors can be simultaneously satisfied, the characteristics of smaller volume and lighter weight are realized, the trouble that two independent electric connectors are required to be manufactured respectively and installed respectively is avoided, meanwhile, the arrangement space in the horizontal direction is saved, thereby effectively saving the space of a circuit board (not shown), particularly for a Type C USB connector, the utility model ensures that the two Type C USB connectors are combined into 1, the metal shell 30 plays good limiting and supporting roles by mutually buckling the folded piece 311 and the extension arm 37 which are bent inwards, the original assembly procedure of 2 metal shells is changed into the stamping bending of 1 metal shell, the assembly manufacturing cost is lower, and the precision is higher, thereby avoiding the problem that the plugging precision is influenced by the position errors generated by the respective manufacturing and the respective assembly of 2 metal shells.

Meanwhile, the structure of the metal shell 30 and the cover body 40 is optimized, and the metal shell 30 and the cover body 40 can be reliably clamped together by adopting the buckling mode of the protrusion 331 and the buckling hole 421, so that the defects of a tearing forming process and a tearing structure are avoided.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make many possible variations and modifications to the technical solution of the present utility model using the above disclosed method without departing from the scope of the technical solution of the present utility model, which is defined in the claims.

Claims (9)

1. The utility model provides an electric connector, includes insulator, the terminal of fixing on insulator, cover in insulator peripheral metal casing and cover and locate the cover body of metal casing surface, the metal casing is equipped with a top cap, a bottom, a pair of side cap and a chamber of acceping, the cover body is equipped with the base plate of cover on the top cap and covers a pair of side shield on the side cap, its characterized in that: the side cover of the metal shell and the side baffle of the cover body are provided with a protrusion and a buckling hole which are mutually buckled and matched.

2. The electrical connector of claim 1, wherein: the protrusion is formed on the side cover of the metal shell and does not penetrate through the side cover; the buckling holes are formed in the side baffle plate of the cover body and penetrate through the side baffle plate inwards; the protrusions and the buckling holes are round.

3. The electrical connector of claim 2, wherein: the protrusion is formed at a central position of the side cover, and the protrusion is equidistant from the top cover and the bottom cover.

4. The electrical connector of claim 1, wherein: the protrusions are formed on the side baffles of the cover body and do not penetrate through the side baffles; the fastening hole is formed on the side cover of the metal shell and penetrates through the side cover inwards; the protrusions and the buckling holes are round.

5. The electrical connector of any one of claims 1 to 4, wherein: the top cover of the metal shell is fixed with the base plate of the cover body through welding.

6. The electrical connector of any one of claims 1 to 4, wherein: the insulating body is provided with a first butt joint part and a second butt joint part which are integrally connected; the top cover is provided with a pair of folding sheets which downwards protrude into the accommodating cavity, and the accommodating cavity is divided into a first cavity for accommodating the first butt joint part, a second cavity for accommodating the second butt joint part and a third cavity between the first cavity and the second cavity by the pair of folding sheets.

7. The electrical connector of claim 6, wherein: the metal casing is equipped with a front shroud that forms from the front side limit of top cap buckling downwards, the front shroud perpendicular to top cap and bottom, and the both sides edge an organic whole of front shroud is connected with a pair of extension arm to back horizontal extension, the extension arm with the mutual joint cooperation of folded sheet and both bottom edge and trailing edge are the flush setting.

8. The electrical connector of claim 7, wherein: the cover body is provided with a rear baffle which is bent backwards and extends from the rear side edge of the base plate, the rear baffle extends longitudinally, and the rear baffle is positioned at the rear sides of the base plate and the top cover and is lower than the base plate and the top cover.

9. The electrical connector of claim 8, wherein: the side shield is characterized in that a pair of fixing feet protruding downwards are formed at the bottom edge of the side shield, mounting feet formed by downwards bending and extending are arranged at the two longitudinal ends of the rear shield, and the pair of fixing feet and the mounting feet are distributed along the front-rear direction.

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