CN206135149U

CN206135149U - High insulating VGA serial port connecting line

Info

Publication number: CN206135149U
Application number: CN201621061912.0U
Authority: CN
Inventors: 张放
Original assignee: Beijing Hengtong Weida Technology Co Ltd
Current assignee: Beijing Hengtong Weida Technology Co Ltd
Priority date: 2016-09-18
Filing date: 2016-09-18
Publication date: 2017-04-26
Anticipated expiration: 2026-09-18

Abstract

The utility model provides a high insulating VGA serial port connecting line, be in including cable and connection the D at cable both ends the SUB connector, D the SUB connector includes the iron -clad physically, the cable include heart yearn, plastic cover layer and locate the heart yearn and plastic cover layer between metal internal shield layer, the scarf joint blackfilled compound body in the middle of the iron -clad body, be equipped with welding pin on the blackfilled compound body, welding pin is including extending blackfilled compound body rear end face being used for with heart yearn welded tin -plating end, the heart yearn with tin -plating end welded zone passage shaping inner membrance parcel, welding pin is equipped with the multirow, adjacent two rows be equipped with the insulating piece between the welding pin, the outside on metal internal shield layer is equipped with the external mold of moulding plastics, the cable is close to D the one end of SUB connector is equipped with the magnetic ring. The utility model discloses strengthen anti -extruding strength and insulating nature between the pin, avoided the solder joint of pin easily to cause the short circuit phenomenon because of the extrusion.

Description

A kind of high-insulativity VGA serial port connecting wires

Technical field

This utility model is related to electronic information technical field, more particularly, to a kind of connection of high-insulativity VGA serial ports Line.

Background technology

USB interface is a kind of D types interface, and 15 pin holes are had above, is divided into 3 rows, often arranges 5.Wherein, except 2 are NC (Not Connect) pin, 3 be video data bus signals pin, 5 be GND signal pins, 3 be R, G, B colored Component signal pin, 2 be scanning synchronizing signal HSYNC and VSYNC signal pins.Chrominance component adopts RS343 in USB interface Level standard.The peak-to-peak threshold voltage of RS343 level standards is 1V.USB interface is the interface type being most widely used on video card, Most video cards all carries this kind of interface.Some carry DVI (Digital Visual Interface numbers without USB interface Word video interface) interface video card, it is also possible to DVI interface is changed into by USB interface by a simple adaptor, usually not The video card of USB interface attached can give such adaptor.

Nowadays all it is by simulating USB interface connection, computer-internal between most computers and external display device The display image information for digitally generating, by the digital/analog converter in video card be changed into R, G, B tricolor signal and Row, field sync signal, signal is by cable transmission in display device.For analog display device, CRT monitor is such as simulated, Signal is transmitted directly to corresponding process circuit, and drive control image reproducer generates image.And for the numerical monitors such as LCD, DLP set It is standby, need to configure corresponding A/D (analog/digital) transducer in display device, it is digital signal by analog-signal transitions.Successively After D/A and A/D conversions, the loss of some image details has been inevitably resulted in.Compared to digital interface, USB interface It is applied to its advantage of CRT monitor field extremely to project.

But, there is high pressure often in course of processing test in USB interface, and insulation, short-circuit product fraction defective are up to arrived 15%, Jing are analyzed, and fault rate is concentrated mainly on high density D-SUB (pin of 3 row 15) adapter, because its in production because being pressed Power, the solder joint of the stitch of the row of upper, middle and lower three easily causes short circuit phenomenon because of extruding, causes product quality unqualified.

Utility model content

This utility model provides a kind of high-insulativity VGA serial port connecting wires, by two row's pins adjacent on D-SUB it Between add collets, increased crush resistance strength and insulating properties between pin, it is to avoid the solder joint of pin easily causes short because of extruding Road phenomenon.

This utility model provides a kind of high-insulativity VGA serial port connecting wires, including cable and is connected to the cable two The D-SUB adapters at end, the D-SUB adapters include iron-clad body, and the cable includes heart yearn, outsourcing plastic layer and located at core Metal internal shield between line and outsourcing plastic layer, one black glue body of interlocking, sets on the black glue body in the middle of the iron-clad body Have a welding pin, the welding pin include extending the black glue body rear end face for tin plating with what the heart yearn was welded End, the heart yearn is wrapped up with the region of the tin plating end welding by a molding inner membrance, and the welding pin is provided with multiple rows of, adjacent Insulating trip is provided with described in two rows between welding pin, injection external mold is provided with outside the metal internal shield, the cable is leaned on One end of the nearly D-SUB adapters is provided with magnet ring.

Further, it is provided with one layer of Copper Foil external shielding layer outside the molding inner membrance, the two of the Copper Foil external shielding layer Distinguish the metal internal shield and the iron-clad body boxing in individual edge.

Further, the insulating trip is made using exotic material.

Further, the welding pin arranges 3 rows, often arranges 5 pins, and the insulating trip is provided with altogether 2.

Further, the D-SUB adapters include needle-like joint or pass joint.

Further, the injection external mold is low smoke and zero halogen black injection molding material.

Further, the screw that the both sides of the iron-clad body are provided with screw and are connected with screw matching.

Further, the molding inner membrance is made using low-density clear PE material.

Further, the Copper Foil external shielding layer includes coating glue layer and Copper Foil conductive layer.

The beneficial effects of the utility model：

This utility model high-insulativity VGA serial port connecting wires, by adding exhausted between two row's pins adjacent on D-SUB Edge block, increased crush resistance strength and insulating properties between pin, it is to avoid the solder joint of pin easily causes short circuit phenomenon because of extruding..

Description of the drawings

The accompanying drawing for constituting the part of the application is used for providing further understanding to of the present utility model, of the present utility model Schematic description and description is used to explain this utility model, does not constitute to improper restriction of the present utility model.In accompanying drawing In：

Fig. 1 is the overall structure diagram of this utility model embodiment high-insulativity VGA serial port connecting wires；

Fig. 2 is that the Copper Foil external shielding layer of this utility model embodiment high-insulativity VGA serial port connecting wires is connected with iron-clad body Structural representation；

Fig. 3 is that the heart yearn of this utility model embodiment high-insulativity VGA serial port connecting wires and iron-clad attachment structure are illustrated Figure；

Fig. 4 is the molding inner membrance and iron-clad attachment structure of this utility model embodiment high-insulativity VGA serial port connecting wires Schematic diagram；

Fig. 5 is the positional structure schematic diagram of the insulating trip of this utility model embodiment high-insulativity VGA serial port connecting wires.

Description of the drawings：10th, iron-clad body；20th, heart yearn；30th, molding inner membrance；40th, Copper Foil external shielding layer；41st, metal inner shield Layer；50th, black glue body；60th, screw；70th, it is molded external mold；80th, insulating trip；90th, magnet ring.

Specific embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments describing this utility model in detail.It should be noted that not conflicting In the case of, the feature in embodiment and embodiment in the application can be mutually combined.

Referring to figs. 1 to Fig. 5, this utility model embodiment provides a kind of high-insulativity VGA serial port connecting wires, including cable With the D-SUB adapters for being connected to the cable two ends, the D-SUB adapters include iron-clad body 10, the cable include core Line 20, outsourcing plastic layer and the metal internal shield 41 between heart yearn 20 and outsourcing plastic layer, in the iron-clad body 10 Between rabbet a black glue body 50, the black glue body 50 is provided with welding pin, and the welding pin includes extending the black glue body 50 rear end faces for the tin plating end welded with the heart yearn 20, the heart yearn 20 passes through one with the region of the tin plating end welding Molding inner membrance 30 is wrapped up, and the welding pin is provided with multiple rows of, and insulating trip 80 is provided between welding pin described in adjacent two row, described The outside of metal internal shield 41 is provided with injection external mold 70, and the cable is provided with magnet ring near one end of the D-SUB adapters 90。

By to adding collets between two row's pins adjacent on D-SUB, increased between pin crush resistance strength and Insulating properties and insulating properties, it is to avoid the solder joint for pin occur short circuit phenomenon is caused because of extruding or because signal pins spacing is too low so that Insulating properties is reduced.Meanwhile, by being arranged on cable upper magnetic ring 90, can effectively suppress the common mode of analogue signal transmitted on cable Noise.

Welding pin, for plug-in unit docking, in the butt end nickel plating operation, can be prevented in one end of unwelded heart yearn 20 Welding pin is aoxidized, and is further ensured that signal transmission quality.

Further, the outside of the molding inner membrance 30 is provided with one layer of Copper Foil external shielding layer 40, the Copper Foil external shielding layer Distinguish the metal internal shield 41 and the iron-clad body 10 boxing in 40 two edges.This utility model preferred embodiment is high absolutely Edge VGA serial port connecting wires, by the way that Copper Foil is passed through into soldering-tin layer and iron-clad and metallic shield wire bonding, compared to traditionally by gold The category single spot welding of internal shield 41 is connected to the other side of iron-clad body 10 on time, and this utility model effectively improves the anti-electricity in signals transmission Magnetic noise interference performance so that signal transmission capabilities are substantially improved, product quality is stable.

Further, the insulating trip 80 is made using exotic material.The resistance to elevated temperatures of this utility model embodiment More preferably, so ensure serial port connecting wire quality.

Illustratively, D-SUB adapters adopt 15 signal pins modes, the welding pin to be set to 3 rows, often arrange 5 pins, phase Ying Di, insulating trip 80 need to be provided with altogether 2 in this utility model preferred embodiment.Wherein, the positioning difference of 15 signal pins For：1st foot, " red " of analogue signal；2nd foot, " green " of analogue signal；3rd foot, " indigo plant " of analogue signal；4th foot, address Signal pins；5th foot, it is empty；6th foot, the earth terminal of " red " of analogue signal；7th foot, the earth terminal of " green " of analogue signal；8th Foot, the earth terminal of " indigo plant " of analogue signal；9th foot is standby；10th foot, the earth terminal of digital signal；11st foot, screen and master Control or address code between machine；12nd foot, control or address code between screen and main frame are (for the multiple displays of main frame Screen)；13rd foot, the horizontal row field signal of numeral；14th foot, the vertical row field signal of numeral；15th foot, hole.

Further, the D-SUB adapters include needle-like joint or pass joint.

Further, the injection external mold 70 is low smoke and zero halogen black injection molding material.

Further, the screw 60 that the both sides of the iron-clad body 10 are provided with screw and are connected with screw matching.

Further, the molding inner membrance 30 is made using low-density clear PE material.

Further, the Copper Foil external shielding layer 40 includes coating glue layer and Copper Foil conductive layer.By this kind of mode, copper Paper tinsel external shielding layer 40 can just can be with gluing positioning, then in gluing positioning when the tin plating end of heart yearn 20 and welding pin is wrapped up On the basis of again Copper Foil conductive layer and iron-clad body 10 and metal internal shield 41 are carried out into annular solder with scolding tin, formed one it is thorough The electromagnetic shielding chamber at bottom.

Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this For the technical staff in field, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims

1. a kind of high-insulativity VGA serial port connecting wires, it is characterised in that：Including cable and the D- for being connected to the cable two ends SUB adapters, the D-SUB adapters include iron-clad body (10), and the cable includes heart yearn (20), outsourcing plastic layer and is located at Metal internal shield (41) between heart yearn (20) and outsourcing plastic layer, one black glue body of interlocking in the middle of the iron-clad body (10) (50), the black glue body (50) is provided with welding pin, and the welding pin includes extending black glue body (50) rear end face For the tin plating end welded with the heart yearn (20), the heart yearn (20) passes through a molding with the region of the tin plating end welding Inner membrance (30) is wrapped up, and the welding pin is provided with multiple rows of, is provided with insulating trip (80) described in adjacent two row between welding pin, described Injection external mold (70) is provided with outside metal internal shield (41), the cable is provided near one end of the D-SUB adapters Magnet ring (90).

2. high-insulativity VGA serial port connecting wires according to claim 1, it is characterised in that：The molding inner membrance (30) Outside is provided with one layer of Copper Foil external shielding layer (40), and the metal inner shield is distinguished at two edges of the Copper Foil external shielding layer (40) Layer (41) and the iron-clad body (10) boxing.

3. high-insulativity VGA serial port connecting wires according to claim 1, it is characterised in that：The insulating trip (80) adopts Exotic material makes.

4. high-insulativity VGA serial port connecting wires according to claim 1, it is characterised in that：The welding pin arranges 3 Row, often arranges 5 pins, and the insulating trip (80) is provided with altogether 2.

5. high-insulativity VGA serial port connecting wires according to claim 1, it is characterised in that：The D-SUB adapters include Needle-like joint or pass joint.

6. high-insulativity VGA serial port connecting wires according to claim 1, it is characterised in that：It is described injection external mold (70) be Low smoke and zero halogen black injection molding material.

7. according to the arbitrary described high-insulativity VGA serial port connecting wires of claim 1 to 6, it is characterised in that：The iron-clad body (10) screw (60) that both sides are provided with screw and are connected with screw matching.

8. according to the arbitrary described high-insulativity VGA serial port connecting wires of claim 1 to 6, it is characterised in that：The molding inner membrance (30) made using low-density clear PE material.

9. high-insulativity VGA serial port connecting wires according to claim 2, it is characterised in that：The Copper Foil external shielding layer (40) including coating glue layer and Copper Foil conductive layer.