CN201392942Y - plug connector - Google Patents

Abstract

The utility model discloses a plug connector, it includes a plug body, a plurality of fixing in this internal plug terminal of plug and a metal casing. The metal shell comprises a first shell and a wire clamping shell, wherein the first shell covers the front part of the plug body, and the wire clamping shell covers the rear part of the plug body. The wire clamping shell is provided with a wire clamping shell cover plate, one side edge of the wire clamping shell cover plate vertically bends to extend out a wire clamping shell side plate, the lower side edge of the wire clamping shell side plate downwardly extends out a wire clamping shell bottom plate capable of being bent upwards, the front parts of the side edges of the wire clamping shell cover plate and the wire clamping shell bottom plate are respectively vertically bent to extend out a first buckling plate and a second buckling plate capable of being buckled together, and the rear parts of the wire clamping shell cover plate and the wire clamping shell bottom plate are respectively outwardly extended to form a first wire clamping part and a second wire clamping part which are corresponding up and down. The utility model discloses plug connector's metal casing comprises first casing and the double-layered line shell that has the double-layered line portion, and the equipment is simple and small.

Description

plug connector

technical field

The utility model relates to an electric connector, in particular to a plug connector.

Background technique

A conventional plug connector includes a plug body and a metal shell covering the plug body. The front surface of the plug body protrudes forward with a holding portion that is plugged into the mating connector. The metal shell includes a first shell and a second shell. The first shell covers the holding portion of the plug body, and the second shell covers the holding portion of the plug body. The two shells cover the part outside the holding part of the plug body. The first shell and the second shell of the metal shell are covered and closed on the outside of the plug body, effectively shielding electromagnetic interference.

However, the metal shell of the above-mentioned existing plug connector is composed of the first shell and the second shell. When the plug connector is connected to the external cable, an iron shell for clamping wires needs to be assembled in addition, so that the entire plug connector Complicated assembly and bulky.

Utility model content

The purpose of this utility model is to provide a plug connector with simple assembly and small volume for the defects and shortcomings of the above-mentioned prior art.

To achieve the above purpose, the plug connector provided by the utility model includes a plug body, a plurality of plug terminals held in the plug body and a metal shell. The metal shell includes a first shell and a clamping shell, the first shell covers the front of the plug body, and the clamping shell covers the rear of the plug body. The clamping housing has a clamping housing cover plate, one side edge of the clamping housing cover plate is vertically bent and extends out of the clamping housing side plate, and the lower side edge of the clamping housing side plate extends downward to a clamping housing which can be bent upwards The bottom plate, the front part of the side edge of the cable housing cover plate and the cable housing bottom plate are respectively vertically bent and extended to form a first fastening plate and a second fastening plate that can be fastened together, the cable housing cover plate and the cable housing bottom plate The rear part of the side edge extends outwards a first line clamping part and a second line clamping part corresponding up and down.

As mentioned above, the utility model plug connector is composed of the first shell and the metal shell with the clamping part instead of the first shell, the second shell and the clamping iron in the prior art. The metal shell composed of the shell also has a shielding effect, and in addition to ensuring good anti-electromagnetic interference performance, it reduces the number of assembly parts of the plug connector, making the assembly of the entire plug connector simple and small in size.

Description of drawings

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

FIG. 2 is an exploded perspective view of the plug connector shown in FIG. 1 , wherein the second buckling plate of the clamp housing is not buckled to the first buckling plate.

FIG. 3 is a cross-sectional view of the plug body of the plug connector shown in FIG. 1 .

FIG. 4 is a perspective view of the cable clamp housing of the plug connector shown in FIG. 1 when the second fastening plate is not fastened to the first fastening plate.

The reference signs of each component in the figure are explained as follows:

Plug body 10 first concave part 11

convex part 12 holding part 13

The second concave part 14 terminal slot 15

Holding groove 16 Holding groove 161

Fastening slot 162 Buckling slot 17

Guide groove 18 Missing groove 19

Plug Terminal 20 Base 21

Gap 211 Hook body 212

Connection part 22 Contact part 23

Contact head 24 Buckle 30

Holder 31 Hook 311

Bending part 32 Boss 321

Elastic Arm 33 Barb 34

Metal shell 40 First shell 41

Cover 410 Opening 4100

Side panel 411 Clip 4110

Card slot 4111 Bottom plate 412

Shrapnel 4121 Card 413

Bayonet 4131 Cable clamp 42

Wire clamp cover 420 Wire clamp side plate 421

Bottom plate of clamp housing 422 First fastening plate 4231

The second fastening plate 4232 Lock piece 4233

Lock Slot 4234 Card Holder 424

Grooving 425 Anti-return piece 426

The first clamping part 4271 The second clamping part 4272

Baffle 428 Baffle 429

Positioning block 50 Positioning hole 51

Chute 52 Block 53

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 accompanying drawings.

Please refer to FIG. 1 and FIG. 2 , the plug connector of the present invention includes a plug body 10 , a plurality of plug terminals 20 , a buckle 30 , a metal shell 40 and a positioning block 50 .

Please refer to Fig. 2 and Fig. 3, the plug body 10 is an integrally formed member, and its upper surface and the middle part of the lower surface are respectively provided with a first recess 11 extending back and forth and passing through the front and rear surfaces of the plug body 10, the first recess 11 A protruding portion 12 protrudes from the roughly central portion, and the front side surface of the protruding portion 12 is a slope inclined from front to rear. A plate-shaped retaining portion 13 protrudes forward from approximately the middle of the front surface of the plug body 10, and a second concave portion 14 is provided on the middle of the upper surface of the front portion of the retaining portion 13, and is opened backward from the middle of the front end of the retaining portion 13. There are several terminal slots 15 penetrating through the plug body 10 . The upper surface of the holding part 13 is respectively provided with a holding groove 16 extending backward and penetrating the rear surface of the plug body 10 on both sides of the second concave part 14. The slot 161 and the fastening slot 162 extending forward from the rear surface of the plug body 10 . The four corners of the front surface of the plug body 10 are respectively provided with a buckling groove 17 open to the outside, and the middle part of both sides of the plug body 10 is respectively provided with a guide groove 18 extending forward and backward and penetrating through the front and rear surfaces of the plug body 10. A slot 19 is respectively defined on both sides of the plug body 10 .

Please refer to FIG. 2 , the positioning block 50 is assembled on the rear surface of the plug body 10, and a plurality of positioning holes 51 are provided on the positioning block 50 corresponding to the plug terminal 20, and a chute 52 is respectively provided on the two sides of the positioning block 50, A locking block 53 protrudes substantially from the middle of the chute 52 .

Please continue to refer to FIG. 2 , the plug terminal 20 has a vertical base 21 in the shape of a rectangular plate. One end of the base 21 is bent and extended to one side with a connecting portion 22, the connecting portion 22 is in the shape of a sheet, so the welding area is large, and the connecting portion 22 is bent and extended vertically from one side or the other side of the base 21 and then backward The extension is formed, so the extension direction of the connecting portion 22 is convenient for soldering operation. The other end of the base portion 21 extends forward with a strip-shaped contact portion 23 , the end of the contact portion 23 is bent upwards and extended, and then bent downwards to extend a contact head 24 . A notch 211 is defined at the front of the base 21 opposite to the bending direction of the contact head 24 , and a hook 212 protrudes from the rear of the base 21 at the same side as the bending direction of the contact head 24 . The base portion 21 of the plug terminal 20 is accommodated in the terminal groove 15 of the plug body 10, the hook body 212 is hooked on the groove wall of the terminal groove 15, and the contact head 24 protrudes from the second concave portion 14 to be mated with the connector (in the figure). not shown) docking. One end of the connecting portion 22 protrudes from the rear surface of the plug body 10 and passes through the positioning hole 51 of the positioning block 50, and then reliably butts with the cable (not shown in the figure) by welding. The setting of the positioning block 50 can make the distance between the connecting parts 22 of the plug terminals 20 consistent and isolated from each other, avoiding the short circuit of several plug terminals 20 during soldering. The positioning block 50 and the hook body 212 work together to hold the plug terminal 20 firmly in the plug body 10 .

Please refer to FIG. 2 and FIG. 3 again, the buckle 30 has a clamping portion 31 in the shape of a vertical long plate, and one end of the clamping portion 31 is vertically bent to form a bent portion 32 . An elastic arm 33 extends from the end of the bent portion 32 toward the holding portion 31 . The elastic arm 33 is longer than the holding portion 31 . The end of the elastic arm 33 protrudes from a hook portion 34 . Wherein the clamping portion 31 protrudes from a hook portion 311 , and the upper and lower ends of the bending portion 32 respectively extend upwards and downwards from bosses 321 . The clamping part 31 is clamped in the clamping groove 162 and is clamped on the groove wall of the clamping groove 162 by the hook part 311 , the bending part 32 is fixed in the retaining groove 161 , and the elastic arm 33 extends in the retaining groove 16 , the barb portion 34 protrudes from the upper surface of the holding portion 13 to be buckled with a mating connector (not shown in the figure).

Please refer to FIG. 2 , the metal shell 40 includes a first shell 41 and a wire clamping shell 42 . The first housing 41 has a substantially rectangular plate-shaped cover plate 410, the cover plate 410 is covered on the upper surface of the holding portion 13 of the plug body 10, and the two sides of the cover plate 410 are respectively vertically bent and extended to extend a side plate 411, Side edges of the two side panels 411 are bent inward to extend out of a bottom panel 412 covering the lower surface of the holding portion 13 . The rear edges of the two side panels 411 respectively extend backward to form a long strip 4110 , and the end of the strip 4110 defines a slot 4111 . An opening 4100 is defined on the cover plate 410 . The rear edges of the cover plate 410 and the bottom plate 412 are respectively bent and extended vertically outwards, and then bent and extended vertically backwards to form a card 413 . The card 413 is provided with a slot 4131 . An elastic piece 4121 is punched outward on the bottom plate 412 to elastically abut against the mating connector (not shown in the figure).

Please refer to Fig. 2 and Fig. 4, the clamping housing 42 has a clamping housing cover plate 420 which is roughly in the shape of a rectangular plate, and one side edge of the clamping housing cover plate 420 is vertically bent and extended with a clamping housing side plate 421, the clamping wire The shell cover 420 covers the upper surface of the plug body 10 . The lower edge of the side plate 421 of the clamping case extends downwards out of the bottom plate 422 of the clamping case, and the bottom plate 422 of the clamping case can be bent upward. The right edge of the front part of the clamp housing cover plate 420 and the clamp housing bottom plate 422 is respectively vertically bent and extended to form a first buckle plate 4231 and a second buckle plate 4232, and a lock is punched outward on the first buckle plate 4231. The piece 4233 and the second fastening plate 4232 are provided with a lock slot 4234 . A first wire clamping portion 4271 and a second wire clamping portion 4272 corresponding up and down extend outwards from the right side of the rear part of the wire clamping housing cover 420 and the wire clamping housing bottom plate 422 . Both the side plate 421 of the clamping case and the first fastening plate 4231 are punched inward with a retaining piece 424 that engages with the slot 19 of the plug body 10, and the cover plate 420 of the clamping case and the bottom plate 422 of the clamping case are both Two slots 425 are defined, and an anti-retraction piece 426 extends from one side edge of the slots 425 into the wire tension housing 42 . Both ends of the front edge of the clamp housing bottom plate 422 are vertically bent upwards to extend a blocking piece 428, and the front edges of the clamping housing side plate 421 and the first fastening plate 4231 are both bent inward and vertically extended to extend a blocking piece 428, Both the middle part of the front edge of the cable housing cover 420 and the cable housing bottom plate 422 are bent vertically inward and extend with a baffle plate 429 .

Referring to FIG. 1 and FIG. 4 , when assembling the plug connector of this embodiment, firstly, insert the plug terminal 20 into the terminal slot 15 from the rear of the plug body 10 to the front. Next, the buckle 30 is inserted into the holding groove 16 forward from the rear of the plug body 10 until the boss 321 of the bent portion 32 abuts against the groove wall of the holding groove 161, so that the buckle 30 is accurately and firmly held In the plug body 10 without deflection. Next, cover the first shell 41 on the plug body 10 from the front to the rear of the plug body 10, insert the clamping strip 4110 into the guide groove 18, and clamp the card 413 into the first concave portion 11, the bayonet 4131 and The convex parts 12 are engaged with each other. At this time, the barb portion 34 of the locking member 30 passes through the opening 4100 of the first housing 41 upwards and protrudes from the cover plate 410 . Then, the positioning block 50 is covered on the rear surface of the plug body 10, and the locking block 53 of the positioning block 50 is fastened in the slot 4111 of the first housing 41, so that the fixing block 50 is reliably assembled on the plug body 10 on the back surface. Finally, cover the clamp housing 42 on the plug body 10 from the top to the bottom of the plug body 10, the clamp housing cover plate 420 covers the upper surface of the plug body 10, and the clamping piece 424 is engaged in the slot 19 To prevent the clamping shell 42 from shaking up and down. The baffle piece 428 is stuck in the buckle groove 17 of the plug body 10 to prevent the clamping shell 42 from retreating, and the baffle plate 429 covers the part where the cover plate 410 of the first housing 41 is connected with the card 413 to make the first shell The body 41 and the clamping shell 42 are in contact with each other. Bend the bottom plate 422 of the clamping case upwards, and the lock piece 4233 and the lock groove 4234 are locked together, so that the first buckle plate 4231 and the second buckle plate 4232 are locked tightly, and the anti-retraction piece 426 is stuck against the buckle 30 The rear side prevents the plug body 10 inserted with the buckle 30 from retreating. The cable (not shown in the figure) is welded to the plug terminal 20 through the notch surrounded by the first wire clamping portion 4271 and the second wire clamping portion 4272 .

As mentioned above, the metal shell 40 of the utility model plug connector is composed of the first shell 41 and the clamping shell 42 with the first clamping part 4271 and the second clamping part 4272. The metal shell 40 replaces the In the prior art, the metal shell composed of the first shell, the second shell, and the clamping iron shell also has a shielding effect, and in addition to ensuring good anti-electromagnetic interference performance, it reduces the power of the plug connector. The number of assembly parts makes the assembly of the entire plug connector simple and small in size.

Claims (7)

1. pin connector, comprise a header body, several are immobilizated in a plug terminal and a metal shell in the header body, it is characterized in that: this metal shell comprises one first housing and a clamp shell, first housing is covered on the front portion of header body, the clamp shell is covered on the rear portion of header body, this clamp shell has the clamp housing-plate, clamp shell-side plate is extended in the vertical bending of clamp housing-plate one lateral margin, clamp shell-side plate lower lip is extended the clamp shell base plate that can upwards bend downwards, the clamp housing-plate extends first buckling plate and second buckling plate that can snap together mutually with the vertical respectively bending in the front portion of clamp shell base plate lateral margin, and the rear portion of clamp housing-plate and clamp shell base plate lateral margin extends outward the first clamp portion and the second clamp portion.

2. pin connector as claimed in claim 1, it is characterized in that: the upper surface of described header body and lower surface center offer one first recess respectively, the first recess approximate mid-section place convexes with protuberance, and the approximate mid-section place of header body front surface protrudes out a tabular holding parts forward; First housing has cover plate, biside plate and base plate, vertically bend backward again after the outwards vertical respectively bending of cover plate and base plate back edge is extended and extend a card, offer bayonet socket on the card, cover plate, biside plate and base plate are covered on the holding parts, card is placed in first recess, and bayonet socket engages mutually with protuberance.

3. pin connector as claimed in claim 1, it is characterized in that: the outside die-cut locking plate that has on described first buckling plate, offer locked groove on second buckling plate, after clamp shell base plate upwards bent, first buckling plate and second buckling plate snapped together by locking plate and locked groove.

4. pin connector as claimed in claim 1 is characterized in that: all offer a short slot on the two sides of described header body, the place, four angles of header body front surface offers a button respectively and holds groove; The all inwardly die-cut retaining sheet that has the short slot with header body to fasten on the clamp shell-side plate and first buckling plate all is extended with on the leading edge of clamp shell base plate, clamp shell-side plate and first buckling plate and is sticked in button and holds catch in the groove; The all inwardly vertical bending in clamp housing-plate and clamp shell base plate leading edge middle part is extended with one and covers be connected with the card baffle plate of part of cover plate at first housing, all offers fluting on clamp housing-plate and the clamp shell base plate and be extended with the resistance of replacing on the header body rear surface from the lateral edges of fluting in the clamp shell to move back sheet.

5. pin connector as claimed in claim 1, it is characterized in that: the upper surface both sides of the holding parts of described header body are offered one respectively and are extended back and run through the holding slot of header body rear surface, and holding slot has the fixing slot that the retaining that extends up and down and run through the upper and lower surface of header body is held groove and extended forward from the header body rear surface; Described pin connector also comprises a fastener, bending part that fastener comprises the holding section, vertically be bent to form by an end of holding section and bending part end are to the extended elastic arm of being longer than the holding section of holding section one side, and bending part extends boss respectively in two ends up and down up and down; Described holding section is fastened in the fixing slot, and bending part is immobilizated in retaining and holds in the groove, and elastic arm extends in the holding slot, and boss is resisted against retaining and holds on the cell wall of groove.

6. pin connector as claimed in claim 1, it is characterized in that: described pin connector also comprises a positioning block, locating piece is mounted on the rear surface of header body, offers some location holes on the locating piece, and an end of plug terminal stretches out the rear surface of header body and passes location hole.

7. pin connector as claimed in claim 6 is characterized in that: the two sides center of described header body offers the guide channel that the forward and backward surface of header body is extended and run through in front and back respectively; The back edge of the biside plate of first housing extends back a card article respectively, and the end of card article offers a draw-in groove; Offer a chute on the both side surface of described locating piece respectively, the chute approximate mid-section convexes with a fixture block, and card article passes guide channel, and fixture block is fastened in the draw-in groove.

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