CN200953410Y - Plug connector - Google Patents

Abstract

The utility model discloses a plug connector, comprising a plastic cover, a socket and a locking piece. The plastic cover is composed of an upper plastic cover and a lower plastic cover, and a positioning hole is provided on the inner side of the top wall of the upper plastic cover. The socket is fixed in the plastic cover and extends from the front end of the plastic cover. The socket has a shell, and the shell forms a hook hole which is connected to the outside and is located on the front side of the plastic cover. The locking piece is fixed in the plastic cover, and has a side wall, which extends forward to form a clamping arm, and the front end of the clamping arm protrudes to form a clamping hook, and the clamping hook protrudes outward from the clamping hook hole. The side wall of the locking piece also protrudes upward to form a positioning protrusion, and the positioning protrusion is engaged with the corresponding positioning hole on the upper plastic cover. Through the above design, the locking piece and the plastic cover are not easy to loosen, thereby achieving the effect of ensuring the stable operation of the plug connector.

Description

plug connector

Technical field

The utility model relates to a plug connector, in particular to a plug connector which can prevent internal loosening and ensure stable operation.

Background technique

With the continuous development of computer technology, the USB plug connector has become an important way to connect the computer host with external devices.

A conventional USB plug connector with hooks includes a receptacle, a plastic cover, a locking plate and a plastic back cover. The plastic cover has an upper plastic cover and a lower plastic cover, and the upper plastic cover and the lower plastic cover form a receiving space. The socket is accommodated in the accommodating space and protrudes from the front end of the plastic cover. The locking piece has two side walls, and the two side walls respectively extend forward to form a locking arm, and the front end of the locking arm protrudes to form a hook, and the hook protrudes outward from the front side of the outer casing of the socket. The plastic back cover is connected to the rear end of the cleat.

When this kind of USB plug connector is subjected to a large pulling force or frequently plugged in, it is easy to loosen between the plastic cover and the locking plate, so that the connection between the USB plug connector and the corresponding socket connector of the computer is not firm or even makes the USB plug connector damaged and unusable.

Utility model content

The main purpose of the present utility model is to provide a plug connector capable of preventing internal looseness and ensuring stable operation in view of the defects of the above-mentioned background technology.

To achieve the above purpose, the plug connector of the present invention includes a plastic cover, a socket and a locking piece. The plastic cover is composed of an upper plastic cover and a lower plastic cover. The upper plastic cover and the lower plastic cover are fastened together to form a storage space. The socket is fixed in the receiving space and its front end protrudes from the plastic cover through the front notch. The socket includes several terminals, a terminal base and a housing, wherein the terminals are accommodated in the terminal base, and a longitudinally extending receiving groove is formed at the front end of the housing for receiving the terminal base. Both ends are connected with the outside world. The front end of the housing is provided with a hook hole connecting the receiving groove and the outside world, and the hook hole is located at the front side of the front notch. The locking piece is fixed in the storage space and has a side wall. The side wall extends forward to form a card arm extending into the storage groove. The front end of the card arm protrudes to form a hook. stick out. The side wall of the locking part protrudes upwards to form a positioning projection, and the positioning projection is engaged with the corresponding positioning hole of the upper plastic cover.

In summary, when the plug connector of the present invention is fastened with the lower plastic cover and the upper plastic cover through the lock plate, the positioning projections on the rear ends of the walls on both sides of the locking piece are inserted into the positioning holes of the upper plastic cover, so that When the plug connector is inserted into or pulled out of the corresponding socket connector, the locking part and the plastic cover are not easy to loosen, thereby achieving the effect of ensuring the plug connector operates stably.

Description of drawings

In the accompanying drawings of the manual:

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

Fig. 2 is a three-dimensional exploded view of the plug connector of the present invention.

FIG. 3 is a three-dimensional exploded view of the receptacle of the plug connector of the present invention.

FIG. 4 is a perspective view of the upper plastic cover of the plug connector of the present invention.

Fig. 5 is a perspective view of the plug connector of the present invention with the plastic cover removed.

Fig. 6 is a sectional view along VI-VI of Fig. 1 .

The reference numerals of each element in the figure are explained as follows:

Plug Connector 1

Socket Socket 20 Terminal 21

Terminal Block 22 Front Housing 23

Storage slot 231 Hook hole 232

Bottom plate 233 Baffle 234

Rear Housing 24 Top Plate 241

First side panel 242 slotted 243

snap arm 244 second side panel 245

Front Arrival Plate 246 Locking Part 30

Base plate 31 Stop hole 311

Limiting hole 312 side wall 32

Positioning bump 321 card arm 33

Hook 331 Holding part 34

First holding arm 341 Second holding arm 342

Lower plastic cover 40 Lower front wall 42

Lower bottom wall 41 Lower rear wall 43

Lower side wall 44 Lower front notch 421

Limit bump 411 Stop post 412

Mounting plate 413 Button 414

Contact plate 415 Lower rear notch 431

Lower button opening 441 Upper plastic cover 50

Upper front wall 52 Upper bottom wall 51

Upper rear wall 53 Upper side wall 54

Upper front notch 521 Positioning hole 511

Resisting plate 512 Upper rear notch 531

Button up port 541 plastic back cover 60

cable 61

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and drawings.

Please refer to FIG. 1 and FIG. 2 , the plug connector 1 of the present invention is a USB plug connector in this embodiment, including: a receptacle 20 , a locking member 30 , a plastic cover and a plastic back cover 60 . Wherein the plastic cover includes a lower plastic cover 40 and an upper plastic cover 50, a receiving space is formed between the upper and lower plastic covers 50, 40, the socket 20 and the locking plate 30 are accommodated in the receiving space, the socket 20 and pass through the front ends of the lower plastic cover 40 and the upper plastic cover 50. The plastic rear cover 60 is connected to the rear end of the locking piece 30 .

Please refer to FIG. 3 , the receptacle 20 includes a plurality of terminals 21 , a terminal base 22 , a front shell 23 and a rear shell 24 . Wherein, a plurality of terminals 21 are accommodated in the terminal base 22 side by side. The front end of the front housing 23 forms a longitudinally extending accommodation groove 231 for accommodating the terminal block 22. hook hole 232. A bottom plate 233 extends from a rear end of the front housing 23 , and a baffle plate 234 extends rearward from two side walls of the front housing 23 respectively. The rear housing 24 has a top plate 241, the two sides of the rear part of the top plate 241 are respectively bent vertically downwards to form two first side plates 242, the front end of the first side plate 242 is provided with a slot 243 penetrating downwards, the first side plate 242 The rear end of the bottom extends downwards and forwards to form snap-fit arms 244 . Both sides of the front end of the top plate 241 extend outward a little and then are bent vertically downward to form a second side plate 245 . The buckling arm 244 of the rear housing 24 is buckled to the rear end of the bottom plate 233 of the front housing 23, its second side plate 245 is buckled to the outer surface of the baffle 234 of the front housing 23, and its front abutting plate 246 is abutted against The rear end of the top wall of the front housing 23 .

Referring again to FIG. 2 , the locking member 30 has a base plate 31 , two circular stopper holes 311 are defined side by side at the rear end of the base plate 31 , and a square limiting hole 312 is formed at the center of the front end of the base plate 31 . Two opposite side walls 32 vertically extend upwards from the left and right sides of the base plate 31 , and the side walls 32 extend forward to the front side of the base plate 31 . A rear end of the side wall 32 protrudes upward to form a positioning protrusion 321 . The side wall 32 extends laterally inward a little at the bottom of the front end and then extends forward to form a longitudinally extending locking arm 33 . The front end of the arm 33 protrudes outward to form a hook 331 . A retaining portion 34 extends backward from the middle of the rear end of the bottom plate 31 , and the left and right ends of the retaining portion 34 are respectively bent upwards in an arc shape to form a first retaining arm 341 and a second retaining arm 342 .

Please continue to refer to FIG. 2 , the lower plastic cover 40 includes a lower bottom wall 41 , a lower front wall 42 , a lower rear wall 43 and two lower side walls 44 protruding vertically upward from the lower bottom wall 41 . Wherein, the lower front wall 42 defines a lower front notch 421 in the middle, the top of the lower front notch 421 communicates with the outside world, and the bottom is located on the upper surface of the lower bottom wall 41 . A limiting protrusion 411 protrudes upward from the center of the lower bottom wall 41 . The lower bottom wall 41 is provided with two stop posts 412 behind the position limiting protrusion 411 . The lower rear wall 43 defines a lower rear notch 431 through the top. The two lower side walls 44 respectively define lower button openings 441 . The lower bottom wall 41 protrudes upwards on the rear side of the lower button opening 441 to form a fixed plate 413 that abuts against the inner side of the lower side wall 44. The front end of the fixed plate 413 extends forward to form an elastic button 414. The outer surface of the button 414 is roughly arc-shaped. shape and protrude outward from the button opening 441 . The front end of the button 414 extends to form a contact plate 415 , and the contact plate 415 is closely attached to the inner side of the lower side wall 44 .

Please refer to FIG. 4 , the upper plastic cover 50 includes an upper top wall 51 , and an upper front wall 52 , an upper rear wall 53 and two upper side walls 54 extending vertically upward from the upper top wall 51 . Wherein, the upper front wall 52 defines an upper front notch 521 matching with the lower front notch 421 of the lower plastic cover 40 . Two positioning holes 511 are respectively defined on two sides of the upper top wall 51 near the two upper side walls 54 . A resisting plate 512 connected to the upper sidewall 54 protrudes from a rear side of each positioning hole 511 . The upper rear wall 53 defines an upper rear notch 531 matching the lower rear notch 431 of the lower plastic cover 40 . The two upper sidewalls 54 respectively define an upper button opening 541 corresponding to the lower button opening 441 at the front side of the positioning hole 511 .

The plastic back cover 60 is connected to the back side of the plastic cover, and has a cable 61 passing through the plastic back cover 60 . The cable 61 has several wires (not shown in the figure).

Please refer to FIG. 5 and FIG. 6 together. When the plug connector 1 of the present invention is assembled, the upper and lower plastic covers 50 and 40 are engaged so that the upper and lower front notches 521 and 421 jointly form the front notch. The lower rear notches 531, 431 jointly form a rear notch, and the upper and lower button openings 541, 441 jointly form a button opening. The socket 20 is fixed in the accommodation space formed by the upper and lower plastic covers 50, 40 through the interlocking between the front and rear shells 23, 24 and the upper and lower plastic covers 50, 40, wherein the snap arms The bottom end of 244 abuts against the upper surface of the bottom wall 41 under the lower plastic cover 40, and the front end of the socket 20 protrudes from the plastic cover through the front notch, and the hook hole 232 is located at the front side of the front notch. The locking piece 30 is also accommodated in the accommodating space, wherein the limiting hole 312 and the stopper hole 311 on the base plate 31 of the locking piece 30 are snapped together with the limiting projection 411 and the stopper column 412 of the lower plastic cover 40 . The rear end of the locking member 30 stops against the resisting plate 512 of the upper plastic cover 50 , and the positioning protrusion 321 at the rear end of the side wall 32 of the locking member 30 engages in the positioning hole 511 of the upper plastic cover 50 . The outer front and rear ends of the side wall 32 of the locking member 30 abut against the inner surface of the fixing plate 413 of the lower plastic cover 40 and the contact plate 415 of the button 414 respectively. The two locking arms 33 of the locking member 30 respectively extend into the rear housing 24 through the slot 243 of the rear housing 24 and extend into the terminal base 22 and both sides of the front housing 23 along the inner side of the baffle plate 234 of the front housing 23. Between the walls, that is, the two sides of the receiving groove 231 . The hook 331 at the front end of the arm 33 protrudes outward from the hook holes 232 on the two side walls of the front housing 23 . By pressing or releasing the button 414 , the hook 331 at the front end of the arm 33 connected to the side wall 32 can be controlled to retract into or extend out of the hook hole 232 of the front housing 23 . The plastic rear cover 60 is fixedly connected to the rear end of the plastic cover, wherein the cable 61 extends into the accommodation space of the plastic cover through the rear notch, and the cable 61 is locked by the holding part 34 at the rear end of the locking member 30 fixed. Several wires of the cable 61 are soldered forward to corresponding terminals to achieve electrical continuity (not shown in the figure).

To sum up, the plug connector 1 of the present utility model engages in the positioning hole 511 of the upper plastic cover 50 through the positioning protrusion 321 on the locking member 30, so that the plug connector 1 can be inserted or pulled out correspondingly. When the socket connector is used, the locking part 30 and the plastic cover are not easy to loosen, so as to ensure the stable operation of the plug connector 1 .

Claims (10)

1. A plug connector, comprising: Plastic cover. The plastic cover is composed of an upper plastic cover and a lower plastic cover. The upper plastic cover and the lower plastic cover are fastened to form a storage space. The front end of the plastic cover has a front notch; A socket, the socket is fixed in the receiving space and its front end protrudes from the plastic cover through the front notch, including a plurality of terminals, a terminal seat and a housing, wherein the terminals are accommodated in the terminal seat The front end of the housing forms a longitudinally extending receiving groove for accommodating the terminal base. the hook hole is located on the front side of the front notch; and Locking piece, the locking piece is fixed in the storage space, has a side wall, the side wall extends forward to form a card arm extending into the receiving groove, the front end of the card arm protrudes to form a hook, and the hook is formed by The hook hole protrudes outward; It is characterized in that: the side wall of the locking piece protrudes upwards to form a positioning bump, and the inner side of the top wall of the upper plastic cover is provided with a positioning hole, and the positioning bump is fastened with the corresponding positioning hole. 2. The plug connector according to claim 1, wherein the locking member has a base plate held by the lower plastic cover, and two opposite side walls respectively extend upward from the left and right sides of the base plate. The side wall extends forward to the front side of the substrate. 3. The plug connector according to claim 2, wherein the rear end of the side wall protrudes upward to form the positioning protrusion. 4. The plug connector according to claim 1, wherein the side wall extends laterally inward a little at the bottom of the front end and then extends forward, thereby forming a longitudinally extending locking arm, the locking arm The front end protrudes outward to form the hook. 5. The plug connector according to claim 1, characterized in that: the lower bottom wall of the lower plastic cover protrudes upwards with a limiting projection, and the bottom plate of the locking plate is correspondingly provided with a limiting hole to engage with it. 6. The plug connector according to claim 1, characterized in that: the lower bottom wall of the lower plastic cover protrudes upwards from the stop post, and the bottom plate of the locking plate is correspondingly opened with a stop hole to engage with it. 7. The plug connector according to claim 1, wherein the housing includes a front housing and a rear housing buckled therewith, a bottom plate extends from the rear end of the front housing, and the rear housing has A top plate, the two sides of the rear part of the top plate are respectively bent vertically downwards to form two first side plates, the rear end of the bottom of the first side plate extends downward and then extends forward to form a buckle arm, and the buckle arm is fastened to the front The bottom plate rear end of the housing. 8. The plug connector according to claim 1, characterized in that: the plug connector further comprises a plastic back cover, the plastic back cover is connected to the rear end of the plastic cover, and a cable runs through the plastic back cover , the cable has a plurality of wires, and the wires are forwardly welded to corresponding terminals to achieve electrical conduction. 9. The plug connector according to claim 1, characterized in that: the plug connector includes a button, and the hook at the front end of the arm connected to the side wall can be controlled to retract or extend by pressing or releasing the button. out the hook hole of the front case. 10. The plug connector according to claim 1, wherein the plug connector is a USB plug connector.

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