CN215343128U - Electrical connector - Google Patents

Abstract

The utility model provides an electric connector, which comprises an insulating body, a plurality of conductive terminals fixed in the insulating body and a shielding shell covering the outside of the insulating body, wherein the insulating body is provided with a forward open butt joint cavity and a plurality of terminal grooves communicated with the butt joint cavity, each conductive terminal is provided with a contact arm exposed in the butt joint cavity and a tail part extending out of the insulating body, the shielding shell is provided with an installation space for assembling and fixing the insulating body, the electric connector is also provided with a plug-in shell combined with the shielding shell, the first side wall of the plug-in shell is provided with at least one buckling hole for buckling with the butt joint wall, and the plug-in shell and the shielding shell jointly enclose to form a plug-in groove for inserting the butt joint wall of a butt-joint connector. The electric connector has higher structural strength.

Description

Electrical connector

Technical Field

The present invention relates to an electrical connector, and more particularly, to an electrical connector with high structural strength.

Background

When the metal shell of the conventional electrical connector forms an installation space for assembling the insulating body and an insertion groove for inserting the butt wall of the butting connector, the thickness of the metal shell in the arrangement direction of the installation space and the insertion groove is larger, but the wall thickness of the metal shell is thinner, so that the structural strength of the metal shell is poorer.

In view of the above, there is a need for an improved electrical connector to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric connector with high structural strength.

In order to achieve the above object, the present invention provides an electrical connector, which includes an insulating housing, a plurality of conductive terminals fixed in the insulating housing, and a shielding housing covering the insulating housing, wherein the insulating housing has a docking cavity opened forward and a plurality of terminal slots communicated with the docking cavity, each conductive terminal has a contact arm protruding in the docking cavity and a tail extending out of the insulating housing, the shielding housing has an installation space for assembling and fixing the insulating housing, the electrical connector further has a plugging housing combined with the shielding housing, a first sidewall of the plugging housing has at least one fastening hole for fastening with the docking wall, and the plugging housing and the shielding housing together enclose a plugging slot for inserting the docking wall of the docking connector.

As a further improvement of the present invention, the plug housing further has a pair of extension walls formed by extending downward from both ends of the first side wall in the transverse direction, the shielding housing has a second side wall spaced apart from the first side wall in the height direction, the first side wall has a flange extending forward beyond the front end surface of the shielding housing, and the first side wall, the second side wall and the pair of extension walls enclose the plug slot.

As a further improvement of the present invention, the shielding case further has a third sidewall disposed opposite to the second sidewall in the height direction and a pair of connecting walls connecting the second sidewall and the third sidewall to enclose four sides of the insulating body, and the second sidewall separates the mounting space from the insertion groove.

As a further improvement of the utility model, the pair of extension walls covers the outer side of the corresponding connecting wall and is fixedly connected with the connecting wall.

As a further improvement of the present invention, each of the connecting walls has a first abutting piece protruding toward the insulating body on the inner side thereof, the insulating body has a clamping groove concavely formed on the end wall thereof, and the first abutting piece is clamped in the clamping groove.

As a further improvement of the present invention, each of the extending walls has a second abutting piece protruding toward the connecting wall at the inner side thereof, each of the connecting walls has an abutting groove, the first abutting piece extends forward from the groove wall of the corresponding abutting groove and is partially located in the abutting groove, and the second abutting piece is fastened in the corresponding abutting groove.

As a further improvement of the present invention, the insulation body has a limiting groove opened forward, and the plug-in housing has a limiting protrusion extending backward and inserted into the limiting groove.

As a further improvement of the present invention, the third sidewall is provided with a retaining arm having a front end as a free end and a rear end as a fixed end, and the insulating body has a retaining groove located at the bottom thereof for retaining with the retaining arm.

As a further improvement of the present invention, the plugging housing and the shielding housing each have mounting feet extending backward to enclose the external circuit board, and the mounting feet are distributed on both sides of the insulating body in the height direction.

As a further improvement of the present invention, the mounting feet of the plug housing include a pair of first mounting feet distributed on both sides in the transverse direction thereof and a second mounting foot located between the pair of first mounting feet in the transverse direction.

According to the electric connector, the inserting shell combined with the shielding shell is arranged, the shielding shell is used for inserting the butting terminal of the butting connector, and the shielding shell and the inserting shell are jointly surrounded to form the inserting groove for inserting the butting wall of the butting connector, so that the structural strength of the connecting wall of the inserting shell and the structural strength of the shielding shell are ensured, and the structural strength of the electric connector is higher.

Drawings

Fig. 1 is a perspective assembly view of the electrical connector of the present invention.

Fig. 2-3 are views of the electrical connector of fig. 1 from another perspective.

Fig. 4 is a partially exploded view of the electrical connector shown in fig. 1.

Fig. 5 is a view of the electrical connector of fig. 4 from another perspective.

Fig. 6 is an exploded perspective view of the shield housing and the plug housing of the electrical connector of fig. 4.

Fig. 7 is a view of the shutter housing and the plug housing of fig. 6 from another perspective.

Fig. 8 is an exploded perspective view of the electrical connector shown in fig. 4 with the shielding housing and the plugging housing removed.

Fig. 9 is a view of the electrical connector of fig. 8 from another perspective.

Fig. 10 is a side view of the electrical connector of fig. 1.

Fig. 11 is a cross-sectional view of the electrical connector of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 11, an electrical connector 100 according to a preferred embodiment of the present invention is shown, wherein the electrical connector 100 includes an insulating body 1, a plurality of conductive terminals 2 fixed in the insulating body 1, and a shielding shell 3 covering the insulating body 1.

Referring to fig. 1 to 5 and 8 to 11, the insulative housing 1 has a mating cavity 101 opened forward and a plurality of terminal slots 102 communicating with the mating cavity 101, and more specifically, the insulative housing 1 has an upper wall 11, a lower wall 12 and a pair of end walls 13 connecting the upper wall 11 and the lower wall 12, the upper wall 11 and the lower wall 12 are disposed opposite to each other in a height direction and extend in a transverse direction, and the terminal slots 102 are formed by penetrating the upper wall 11 or the lower wall 12 in a front-rear direction.

The insulator body 1 further has a partition wall 14 connecting the upper wall 11 and the lower wall 12, the insulator body 1 is divided into a first portion and a second portion arranged side by side along the transverse direction by the partition wall 14, and has two docking cavities 101 arranged corresponding to the first portion and the second portion, the two docking cavities 101 are separated by the partition wall 14, the upper wall 11, the lower wall 12, the partition wall 14 and one of the end walls 13 jointly enclose to form one of the docking cavities 101, and the upper wall 11, the lower wall 12, the partition wall 14 and the other of the end walls 13 jointly enclose to form the other of the docking cavities 101.

The insulation body 1 has a limiting groove 103 opened forward, specifically, the upper wall 11 has at least two limiting grooves 103 located on the upper side thereof and penetrating the insulation body 1 along the front-back direction, the lower wall 12 has at least two limiting grooves 103 located on the lower side thereof and penetrating the insulation body 1 along the front-back direction, the upper wall 11 has at least one limiting groove 103 in the first portion and the second portion, respectively, and the lower wall 12 has at least one limiting groove 103 in the first portion and the second portion, respectively. Further, in the present embodiment, the upper wall 11 has a pair of the retaining grooves 103 at the first portion and the second portion, respectively, and the lower wall 12 has a pair of the retaining grooves 103 at the first portion and the second portion, respectively.

In addition, the upper wall 11 has at least one latching hole 104 between a pair of retaining grooves 103 located thereon in the transverse direction in the first and second portions, respectively, and the lower wall 12 has at least one latching hole 104 in the first and second portions, respectively, and the latching hole 104 of the lower wall 12 is located between a pair of retaining grooves 103 located thereon in the transverse direction. In this embodiment, the upper and lower walls 11, 12 are provided with three locking holes 104 arranged along the transverse direction, and two locking holes 104 on two sides of the lower wall 12 correspond to and communicate with the corresponding locking grooves 121.

The insulating body 1 has a pair of retaining grooves 131 at two sides in the transverse direction and a retaining groove 121 at the bottom thereof, each retaining groove 131 is recessed outside the corresponding end wall 13, and the pair of retaining grooves 121 are respectively communicated with the corresponding locking holes 104 on the lower wall 12.

Referring to fig. 1 to 4 in combination with fig. 8 and 9, each of the conductive terminals 2 has a contact arm 21 exposed in the mating cavity 101 and a tail portion 23 extending out of the insulating body 1, in this embodiment, the electrical connector 100 has two rows of the conductive terminals 2 oppositely disposed along a height direction, the conductive terminals 2 are divided into two groups located at two sides of the partition wall 14 in a transverse direction, and two rows of the conductive terminals 2 in each group are oppositely disposed along the height direction. The contact arms 21 of the conductive terminals 2 have elasticity, and each contact arm 21 has a contact portion 211 which is formed by protruding towards the other row of conductive terminals 2 and is bent.

Referring to fig. 1 to 7 in combination with fig. 10 and 11, the shielding shell 3 has an installation space 30 for assembling and fixing the insulating housing 1. The electrical connector 100 further has a plug housing 4 combined with the shielding housing 3, the first side wall 41 of the plug housing 4 has at least one fastening hole 411 for fastening with a mating wall (not shown), and the plug housing 3 and the shielding housing 4 together enclose a plug slot 40 for inserting the mating wall of the mating connector (not shown). In this embodiment, the first side wall 41 is provided with a pair of the latch holes 411 at a middle portion thereof for latching with a latch (not shown) of the mating connector.

The inserting housing 4 further has a pair of extending walls 42 extending downward from two ends of the first side wall 41 in the transverse direction, the shielding housing 3 has a second side wall 31 spaced apart from the first side wall 41 in the height direction, the second side wall 31 covers the upper side of the insulating body 1, and the first side wall 41, the second side wall 31 and the pair of extending walls 42 enclose the inserting groove 40.

Further, the first side wall 41 has a flange 412 extending forward beyond the front end surface of the shielding shell 3, so that the mating wall of the mating connector can be easily inserted into the insertion groove 40 along the inner side of the flange 412, thereby preventing the mating wall from being inserted into the insertion groove 40 due to incorrect insertion position, and further improving the convenience of the electrical connector 100 and the mating connector.

The shielding case 3 further has a third sidewall 32 disposed opposite to the second sidewall 31 in the height direction and a pair of connecting walls 34 connecting the second sidewall 31 and the third sidewall 32, so that the shielding case 3 is frame-shaped and covers four sides of the insulating main body 1, and the second sidewall 32 separates the mounting space 30 from the insertion groove 40.

Specifically, the upper and lower sides of the insulating body 1 are respectively covered by the second sidewall 31 and the third sidewall 32, and the left and right sides thereof are respectively covered by the pair of connecting walls 34, so as to form a complete electromagnetic shield on the outer side of the insulating body 1.

The third side wall 32 is provided with a holding arm 321 with a free end at the front end and a fixed end at the rear end, and the holding arm 321 is fastened with the corresponding fastening groove 121. Further, the free end of the catching arm 321 protrudes toward the inside of the shielding shell 3, and the rear end of the catching arm 321 is a fixed end and the front end is a free end, so as to prevent the shielding shell 3 from being withdrawn forward and loosened after being assembled outside the insulating body 1 from the front to the back.

Each of the connecting walls 34 has a first abutting piece 341 protruding toward the insulating body 1 inside thereof, and the first abutting piece 341 is clamped in the clamping groove 131. In addition, each of the connecting walls 34 has a supporting groove 342, and the first supporting piece 341 extends forward from the groove wall of the corresponding supporting groove 342 and is partially located in the supporting groove 342.

The pair of extension walls 42 covers the outside of the corresponding connecting wall 34 and is fixedly connected therewith. After the inserting housing 4 is combined with the shielding housing 3, the pair of extending walls 42 are fixedly connected with the corresponding connecting walls 34, further, in this embodiment, the pair of extending walls 42 cover the outer sides of the corresponding connecting walls 34 and are welded and fixed therewith, in other embodiments, the combining manner of the inserting housing 4 and the shielding housing 3 may also adopt other forms such as assembling or buckling.

Each of the extending walls 42 has a second abutting piece 421 protruding toward the connecting wall 34 inside thereof, and the second abutting piece 421 is fastened in the corresponding abutting groove 342. Meanwhile, each extension wall 42 further has a front protrusion 423 adjacent to the first side wall 41, and a front end surface of the front protrusion 423 is coplanar with a front end surface of the flange 412, so that the pair of front protrusions 423 and the flange 412 together form a guide structure that can guide three sides of the docking wall, thereby enabling the docking wall to be inserted into the insertion groove 40 without error and quickly.

The electrical connector 100 of the present invention utilizes the plug housing 4 and the shielding housing 3 to plug the mating wall and the mating terminal of the mating connector, respectively, the shielding housing 3 has a smaller dimension in the height direction to ensure the structural strength of the connecting wall 34, and the plug housing 4 is combined with the connecting wall 34 through the extending wall 42, so that the structural strength of the extending wall 42 can be enhanced by the connecting wall 34, and the overall structural strength of the plug housing 4 is also enhanced.

In addition, referring to fig. 4 to 7 in combination with fig. 10 and 11, the plug housing 4 has a limiting protrusion 43 extending backward and inserted into the limiting groove 103, and the limiting protrusion 43 is located in the middle of the plug housing 4 in the transverse direction and is formed by extending downward and backward from the rear end of the first side wall 41.

In addition, in this embodiment, the plug housing 4 further includes an inclined portion 44 formed by continuously extending from the rear end of the first side wall 41 rearward and horizontally, and a flange portion 45 formed by horizontally extending from the rear end of the inclined portion 44 rearward, wherein the inclined portion 44 is disposed at an angle to the horizontal plane and shields the opening of the plug slot 40 from the rear side of the plug slot 40. The rear side of the insulating body 1 is provided with a raised part 15, and the flanging part 45 abuts against the upper surface of the raised part 15.

In addition, in the present invention, the plug housing 4 and the shielding housing 3 each have mounting legs 46, 35 extending rearward to fit an external circuit board (not shown), and the mounting legs 46, 35 are distributed on both sides of the insulating body 1 in the height direction.

Specifically, in this embodiment, the mounting pin 46 of the plug housing 4 is located on one side of the insulating body 1 in the height direction, and the mounting pin 35 of the shielding housing 3 is located on the other side of the insulating body 1 in the height direction, so as to perform mounting and positioning on two sides of the insulating body 1, thereby ensuring the stability of the insulating body 1 and the inner conductive terminals 2 thereof.

Further, the mounting feet 46 of the plug housing 4 include a pair of first mounting feet 461 distributed on two sides in the transverse direction thereof and a second mounting foot 462 located between the pair of first mounting feet 461 in the transverse direction, and the second mounting foot 462 is disposed adjacent to the limiting protrusion 43 to mount and position the plug housing 4 in the middle thereof. The first mounting legs 461 are mounted and positioned at two ends of the plug housing 4 in the length direction.

The inclined portions 44 include first, second and third inclined portions 441, 442 and 443 having different extension lengths, the first inclined portion 441 having a longer extension length than the second inclined portion 442, the first mounting leg 461 being horizontally extended rearward from the corresponding first inclined portion 441, and the second mounting leg 462 being horizontally extended rearward from the third inclined portion 443.

Referring to fig. 2, 8, 9 and 11, the electrical connector 100 further includes an insulating member 5 accommodated in the insulating housing 1, and the conductive terminals 2 are embedded and formed in the insulating member 5.

The insulating member 5 has a positioning portion 51 and a locking portion 52 protruding from the upper and lower sides, and the positioning portion 51 and the locking portion 52 located on the same side are disposed in a staggered manner in the front-rear direction and fixed to the corresponding locking holes 104 of the insulating main body 1. Specifically, the locking hole 104 includes a first locking hole 1041 cooperating with the positioning portion 51 and a second locking hole 1042 cooperating with the locking portion 52.

Specifically, in the present embodiment, the insulating member 5 includes a first insulating member 5a and a second insulating member 5b combined in the height direction, and a third insulating member 5c and a fourth insulating member 5d combined in the height direction, wherein the first insulating member 5a and the third insulating member 5c are located at the upper side, the second insulating member 5b and the fourth insulating member 5d are located at the lower side, and two rows of the conductive terminals 2 are insert-molded in the first to fourth insulating members 5a, 5b, 5c, 5d, respectively, to constitute four terminal modules.

The first and second insulating members 5a, 5b each have a fitting post 53 and a fitting hole 54 adapted to each other, that is, the fitting post 53 of the first insulating member 5a is adapted to the fitting hole 54 of the second insulating member 5b, the fitting post 53 of the second insulating member 5b is adapted to the fitting hole 54 of the first insulating member 5a, and the fitting post 53 and the fitting hole 54 of the first insulating member 5a are arranged at intervals in the transverse direction, so as to achieve a mutual coupling relationship. Likewise, the third and fourth insulating members 5c and 5d have similar fitting structures.

The electric connector 100 of the utility model is provided with the inserting shell 4 mutually combined with the shielding shell 3, and the inserting shell 4 and the shielding shell 3 are utilized to respectively insert and connect the butt wall and the butt terminal of the butt connector, thereby ensuring the structural strength of the connecting wall 43 of the inserting shell 4 and the structural strength of the shielding shell 3, and further ensuring the structural strength of the electric connector 100 to be higher.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.

Claims (10)

1. An electric connector comprises an insulating body, a plurality of conductive terminals fixed in the insulating body and a shielding shell covering the outside of the insulating body, wherein the insulating body is provided with a forward open butt joint cavity and a plurality of terminal grooves communicated with the butt joint cavity, each conductive terminal is provided with a contact arm protruding in the butt joint cavity and a tail part extending out of the insulating body, and the shielding shell is provided with an installation space for assembling and fixing the insulating body and is characterized in that: the electric connector is also provided with a plug-in shell combined with the shielding shell, the first side wall of the plug-in shell is provided with at least one buckling hole used for buckling with the butting wall, and the plug-in shell and the shielding shell jointly enclose a plug-in groove for the butting wall of the butting connector to be inserted into.

2. The electrical connector of claim 1, wherein: the plug-in housing also has a pair of extension walls formed by extending downwards from two ends of the first side wall of the plug-in housing in the transverse direction, the shielding housing is provided with a second side wall arranged at intervals with the first side wall in the height direction, the first side wall is provided with a flange extending forwards to exceed the front end face of the shielding housing, and the first side wall, the second side wall and the pair of extension walls are arranged in an enclosing manner to form the plug-in slot.

3. The electrical connector of claim 2, wherein: the shielding shell is also provided with a third side wall and a pair of connecting walls, wherein the third side wall is arranged opposite to the second side wall in the height direction, the pair of connecting walls are used for connecting the second side wall and the third side wall so as to cover four sides of the insulating body, and the second side wall separates the installation space from the plug groove.

4. The electrical connector of claim 3, wherein: the pair of extension walls covers the outer side of the corresponding connecting wall and is fixedly connected with the connecting wall.

5. The electrical connector of claim 4, wherein: each connecting wall is provided with a first abutting piece protruding towards the insulating body on the inner side of the connecting wall, the insulating body is provided with a clamping groove concavely arranged on the end wall of the insulating body, and the first abutting pieces are clamped in the clamping grooves.

6. The electrical connector of claim 5, wherein: each extending wall is provided with a second abutting piece which is formed by extending towards the connecting wall on the inner side of the extending wall in a protruding mode, each connecting wall is provided with an abutting groove, the first abutting piece extends forwards from the groove wall of the corresponding abutting groove and is partially located in the abutting groove, and the second abutting piece is buckled in the corresponding abutting groove.

7. The electrical connector of claim 3, wherein: the insulation body is provided with a limiting groove which is opened forwards, and the plug-in shell is provided with a limiting protruding part which extends backwards and is inserted into the limiting groove.

8. The electrical connector of claim 7, wherein: the third side wall is provided with a clamping arm of which the front end is a free end and the rear end is a fixed end, and the insulating body is provided with a buckling groove which is positioned at the bottom of the insulating body and is buckled with the clamping arm.

9. The electrical connector of any one of claims 1 to 8, wherein: the plug-in shell and the shielding shell are respectively provided with a mounting pin which extends backwards to be installed in an external circuit board, and the mounting pins are distributed on two sides of the insulating body in the height direction.

10. The electrical connector of claim 9, wherein: the installation foot of grafting casing is including distributing in its horizontal direction both sides a pair of first installation foot and lie in the horizontal direction second installation foot between a pair of first installation foot.

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