CN202205957U

CN202205957U - Usb plug connector

Info

Publication number: CN202205957U
Application number: CN201120356213XU
Authority: CN
Inventors: 邓辉伦
Original assignee: Shenzhen Zhengyao Science & Technology Co Ltd
Current assignee: Shenzhen Zhengyao Science & Technology Co Ltd
Priority date: 2011-09-22
Filing date: 2011-09-22
Publication date: 2012-04-25
Anticipated expiration: 2021-09-22

Abstract

Disclosed is a USB plug connector, comprising an insulating body, a shielding housing covering the insulating body, a terminal set contained in the insulating body, and an insulating rear seat connected to the rear end of the insulating body, wherein part metal at the rear end of the shielding housing is folded and warped up to form a plurality of clamping points; the insulating rear seat wraps the rear ends of the insulating body and the shielding housing, in embedded fixation with the clamping points, thus to enhance the molding holding force of the insulation rear seat covering the shielding housing and make the plastic cement at the rear end of the insulating body to be tightly integrated with the plastic cement of the insulating rear seat, thereby making the product be able to bear greater tensile force and unlikely to break. Moreover, the rear end of the shielding housing is provided with a grounding pin, with a groove formed between the grounding pin and the sidewall of the shielding housing. The structure between the sidewall end face and bottom wall end face of the groove is of a fillet structure, thereby enhancing the strength between two wall surfaces and enhancing the anti-folding force of the product.

Description

The USB plug connector

Technical field

The utility model relates to the electric connector field technology, refers in particular to a kind of USB plug connector.

Background technology

We can say that present USB interface is present everybody the most used interface, and be the handlebar total interface trend of all eliminating more and more.Printer, digital camera, flash disk, MP3 Player, mouse, keyboard, external CD-ROM drive, external hard disk have all used the USB interface conduct in the interface of computer swap data now.When everybody used the memory device of USB interface in the past, chief reason was its plug and play, include the convenient feature of 5V power supply.But along with the capacity of flash disk, MP3 Player strengthens, with popularizing of USB hard disk external connection box, USB CD external connection box, the use of jumbo USB memory device is very general.

The main building block of present USB plug comprises insulating body, conducting terminal, shield shell and main body cover.Each conducting terminal is plugged in the insulating body; Shield shell is coated on outside the insulating body; And generally be connected with main body cover through an insulation back seat by the member that conducting terminal, insulating body and shield shell three form, this insulation back seat is to be folded between main body cover and the shield shell to play interconnect function.Yet owing to mainly be to lean on the frictional force that contacts between the two to form fixation between insulation back seat and the main body cover; Be unable to undergo plug more energetically; After repeatedly using repeatedly; Loosening phenomenon can take place with the member of being made up of conducting terminal, insulating body and shield shell three in the main body cover of USB plug, also can fracture when serious, and product is not durable.

The utility model content

In view of this; The utility model is to the disappearance of prior art existence, and its main purpose provides a kind of USB plug connector, can increase the molded retain strength of insulation back seat that is coated on the shield shell; Product in use can bear bigger tensile force, not frangible.

For realizing above-mentioned purpose, the utility model adopts following technical scheme:

A kind of USB plug connector; Comprise insulating body, be coated on the outer shield shell of insulating body and be accommodated in the terminal group in the insulating body; Comprise that also one is connected the insulation back seat of insulating body rear end; The part metals bending perk of said shield shell rear end forms several stuck points, and this insulation back seat is coated on the rear end of insulating body and shield shell, is mounted in each stuck point.

As a kind of preferred version, said stuck point is respectively formed at the upper edge and the lower edge of shield shell rear end.

As a kind of preferred version, the stuck point number of said upper edge and lower edge is spacing and is provided with two.

As a kind of preferred version, the both sides, rear end of said shield shell are extended with two grounding legs that are used for pcb board welding, are formed with groove between the sidewall of this two grounding leg and shield shell, are the rounding structure between the sidewall end face of this groove and the diapire end face.

As a kind of preferred version, said insulating body comprises pedestal, the hyoplastron that extends outward from pedestal front end below and the extension that extends outward from top, pedestal rear end; These both sides, pedestal front end top are concaved with breach, and the middle part of said shield shell is provided with stopper over against above-mentioned breach correspondence, and this stopper is fixed in each self-corresponding breach with the mode that patches fastening.

As a kind of preferred version, offer guide channel between said two breach, the extension surface at the terminal rear of this guide channel also is provided with a location notch; The rear end of this shield shell is provided with spacer over against above-mentioned location notch correspondence, and this spacer slips into fastening in location notch along guide channel.

As a kind of preferred version, further comprise a main body cover, this main body cover is installed on the insulation back seat through the mode that patches fastening.

The utility model compared with prior art has tangible advantage and beneficial effect; Particularly; Can know that by technique scheme it mainly is to make the part metals perk of shield shell end edge form several stuck points, with the plastic cement of these stuck point chucking insulation back seats; Can increase the molded retain strength of insulation back seat that is coated on the shield shell; The plastic cement of insulating body rear end can securely be merged and be shaped to one with the plastic cement of insulation back seat, and product in use can bear bigger tensile force, not frangible.

In addition, being formed with groove between the rear end grounding leg of this shield shell and the sidewall of shield shell, is the rounding structure between the sidewall end face of this groove and the diapire end face, can increase by two intensity between the wall, lets the warping resistance power of product strengthen.

Be architectural feature and the effect of more clearly setting forth the utility model, come the utility model is elaborated below in conjunction with accompanying drawing and specific embodiment.

Description of drawings

Fig. 1 is the package assembly sketch map of the embodiment of the utility model;

Fig. 2 is the decomposition texture sketch map of the embodiment of the utility model;

Fig. 3 is the sketch map of shield shell among the embodiment of the utility model;

Fig. 4 is the rearview of Fig. 3;

Fig. 5 is the sectional view of the embodiment of the utility model.

The accompanying drawing identifier declaration:

10, insulating body 11, pedestal

111, breach 112, guide channel

12, hyoplastron 13, extension

131, location notch 132, salient point

14, terminal groove 15, insulation back seat

151, chimb

20, shield shell 21, stopper

22, spacer 23, stuck point

24, grounding leg 25, groove

26, rounding

30, terminal group 31, conducting terminal

311, contact site 312, holding parts

313, weld part

40, main body cover.

Embodiment

At first; Present embodiment is that example specifies with a USB flash disk; Please referring to figs. 1 through shown in Figure 2; It has demonstrated the concrete structure of the preferred embodiment of the utility model, and it comprises insulating body 10, be coated on the outer shield shell 20 of insulating body 10, be accommodated in the main body cover 40 that terminal group 30 and in the insulating body 10 are connected insulating body 10 rear ends.

The orientation of top to bottom, left and right, front and rear that present embodiment is mentioned is a benchmark with direction shown in Figure 1, below will describe the composition architectural characteristic of this USB plug connector in detail, and its installation process and method for using are described again.

Wherein, as shown in Figure 2, this insulating body 10 is processed with plastic material, and it probably is step-like.This insulating body 10 comprises pedestal 11, the hyoplastron 12 that extends outward from pedestal 11 front ends below and the extension 13 that extends outward from top, pedestal 11 rear ends.The upper surface of this hyoplastron 12 offers the several terminal grooves 14 that penetrate into extension 13 lower surfaces; Each terminal groove 14 level interval is arranged and is provided with; Be used for terminal group 30 inlayed and be fixed on insulating body 10, the terminal groove 14 in the present embodiment has four, but its quantity is not as limit.The lower surface of this extension 13 is provided with two salient points 132, so that this insulating body 10 cooperates with main body and obtains strong fix when installing.Both sides, this pedestal 11 front ends top are concaved with between breach 111, two breach 111 and offer guide channel 112, this guide channel 112 that direction is set is identical with the bearing of trend of terminal groove 14.In addition, extension 13 surfaces at the rear, end of this guide channel 112 also are provided with a

location notch

131, and 131 of this location notchs and guide channel 112 maintain spacing and the two is located along the same line.

This insulating body 10 also further includes an insulation back seat 15, and this insulation back seat 15 is coated on the middle part and the rear portion of shield shell 20 through the mode of injection mo(u)lding, through this insulation back seat 15 this USB plug and main body cover 40 is connected as one.For the assembly that insulating body 10 and shield shell 20 are constituted can be located; Can not extend toward the main inside of stopping; The plastic cement edge of the front end of this insulation back seat 15 is provided with the chimb 151 of an annular; And the thickening of this chimb 151 front ends forms obliquely domatic, snaps onto 15 last times of this insulation back seat at main body cover 40 and obtains firm installation effect.

Like Fig. 3 and shown in Figure 4, this shield shell 20 is to process with electric conductivity good metal material, and it is the hollow frame structure of both ends open.The front end of this shield shell 20, middle part and rear end be hyoplastron 12, pedestal 11 and the extension 13 of coated insulation body 10 respectively.The corresponding above-mentioned breach 111 in the middle part of this shield shell 20 is provided with two stoppers 21, and this two stopper 21 is fixed in each self-corresponding breach 111 with the mode that patches fastening.The corresponding above-mentioned location notch 131 in the rear end of this shield shell 20 is provided with spacer 22; This spacer 22 is to offer breach 111 by the upper surface of shield shell 20; Again the downward bending of the sheet metal in the breach 111 is formed, make this spacer 22 have certain elastic deformation ability.In the time of in insulating body 10 is inserted into shield shell 20, this spacer 22 is embedded in the guide channel 112, and the groove of insulating body 10 has been gone into the guiding position-limiting action, just snaps onto in the location notch 131 at guide channel 112 rears at last, and insulating body 10 is locked.

In addition; The outside bending perk of part metals on all edges, these shield shell 20 rear ends is formed with several stuck points 23; These stuck points 23 can increase the molded retain strength of insulation back seat 15; Make the plastic cement of insulating body 10 rear ends be shaped to one with these back seat 15 fusions of insulating, product in use can bear bigger tensile force, not frangible.The stuck point 23 of present embodiment be the top that is arranged on shield shell 20 rear ends along and the end along last, and the top along and stuck point 23 numbers on edge, the end be spacing and be provided with two.

Also have, the both sides, rear end of this shield shell 20 are extended with two grounding legs 24 downwards, and this two grounding leg 24 is connected with the earth terminal of PCB circuit through scolding tin.Being formed with groove 25 between the sidewall of this grounding leg 24 and shield shell 20, is rounding 26 structures between the sidewall end face of this groove 25 and the diapire end face, can increase by two intensity between the wall, lets the warping resistance power of product strengthen.

As shown in Figure 2, said terminal group 30 comprises several conducting terminals 31, and the conducting terminal 31 in the present embodiment has four, is respectively to be used for transmitting data information and ground protection.Each conducting terminal 31 is mounted in the terminal groove 14 of insulating body 10, and each conducting terminal 31 comprises the contact site 311 that is positioned at front end, the holding parts 312 in the middle of being positioned at and be positioned at the weld part 313 of rear end.Have the right angle bending between this contact site 311 and the holding parts 312, thereby sting plastic cement tightly when making each conducting terminal 31 be embedded in insulating body 10, reduce the pulling function of processing such as follow-up assembling welding to conducting terminal 31, retain strength is effectively strengthened.And weld part 313 is the formation that after the downward 90 degree bendings of the tail end of holding parts 312, extends back again, in order to weld with the PCB circuit board.

As shown in Figure 5, during assembling, each conducting terminal 31 of this terminal group 30 is inserted in respectively in insulating body 10 each self-corresponding terminal groove 14, thereby conducting terminal 31 firmly is installed on this insulating body 10; Then insulating body 10 is inserted in the shield shell 20 from front to back, fairleads in the shield shell 20 is embedded in the gathering sill of insulating body 10 slides, till fairlead is clamped in the location notch 131 of insulating body 10; The back seat 15 that will insulate again is coated on the rear end of shield shell 20 through the mode of injection mo(u)lding, and main body cover 40 is placed in outside the insulation back seat, promptly accomplishes assembling process.

In the use, when this USB flash disk was inserted into butt joint USB socket (not shown), the elastic contact part 311 of conducting terminal 31 pushed against on the terminal of butt joint USB socket, thereby realized that electric current is connected and the transmission of data.

In sum; The design focal point of the utility model is that it mainly is to make the part metals perk of shield shell end edge form several stuck points, with the plastic cement of these stuck point chucking insulation back seats; Can increase the molded retain strength of insulation back seat that is coated on the shield shell; The plastic cement of insulating body rear end can securely be merged and be shaped to one with the plastic cement of insulation back seat, and product in use can bear bigger tensile force, not frangible.

The above; It only is the preferred embodiment of the utility model; Be not that the technical scope of the utility model is done any restriction; So every technical spirit according to the utility model all still belongs in the scope of the utility model technical scheme any trickle modification, equivalent variations and modification that above embodiment did.

Claims

1. USB plug connector; Comprise insulating body, be coated on the outer shield shell of insulating body and be accommodated in the terminal group in the insulating body; It is characterized in that: comprise that also one is connected the insulation back seat of insulating body rear end; The part metals bending perk of said shield shell rear end forms several stuck points, and this insulation back seat is coated on the rear end of insulating body and shield shell, is mounted in each stuck point.

2. USB plug connector according to claim 1 is characterized in that: said stuck point is respectively formed at the upper edge and the lower edge of shield shell rear end.

3. USB plug connector according to claim 2 is characterized in that: the stuck point number of said upper edge and lower edge is spacing and is provided with two.

4. USB plug connector according to claim 1; It is characterized in that: the both sides, rear end of said shield shell are extended with two grounding legs that are used for pcb board welding; Being formed with groove between the sidewall of this two grounding leg and shield shell, is the rounding structure between the sidewall end face of this groove and the diapire end face.

5. USB plug connector according to claim 4 is characterized in that: said insulating body comprises pedestal, the hyoplastron that extends outward from pedestal front end below and the extension that extends outward from top, pedestal rear end; These both sides, pedestal front end top are concaved with breach, and the corresponding above-mentioned breach in the middle part of said shield shell is provided with stopper, and this stopper is fixed in each self-corresponding breach with the mode that patches fastening.

6. USB plug connector according to claim 5 is characterized in that: offer guide channel between said two breach, the extension surface at the terminal rear of this guide channel also is provided with a location notch; The corresponding above-mentioned location notch in the rear end of this shield shell is provided with spacer, and this spacer slips into fastening in location notch along guide channel.

7. USB plug connector according to claim 1 is characterized in that: further comprise a main body cover, this main body cover is installed on the insulation back seat through the mode that patches fastening.