CN2739846Y - Connector - Google Patents

Abstract

The utility model discloses a connector, comprising a metal upper and a metal lower case, a plug arranged between the upper and the lower case, a lock screw, pins arranged in the plug. The interior of the plug is provided with 28 pins; the front and the rear ends of the pins are arranged as following: the front ends of the pins are divided into two rows, each row has 14 stitches, and each line interval of the stitches is 0. 8 millimetre; the rear ends of the pins extending rearwardly are divided into four rows, each row has 7 stitches, and the stitches in the first row and the fourth row are contracted inward, forming symmetrical step shaped arrangement with the second and the third row; the line interval in each row of the stitches on the rear end is 1. 6 millimetres; each draw-in stitch in the first row is provided between two adjacent stitches in the second row of the stitches; each draw-in stitch in the fourth row is provided between two adjacent stitches in the third row of the stitches. As each distance among the stitches is 0. 8mm, the volume of the connector can be reduced, and as many as cables arrangement on certain length of the handhold strip can be satisfied; simultaneously, the connectors can be arranged in a stacked mode; as the structure of the metal upper and lower case is used, the shielding property of the connector is good.

Description

A kind of connector

Technical field

The utility model relates to the plant equipment of communication field, is specifically related to a kind of connector.

Background technology

A lot of serial communication interfaces from the veneer handle bar outlet are arranged in communication product, need the front and back panel of slave unit to draw a various serial communication cable.As the interface of communication, need much be installed on the veneer and be fixed on shielded connector socket on Handle Bar or the panel, need accordingly multiple accessory cables connector with its coupling.

Along with the development of modern data communication career, product more and more develops to high power capacity, multi-functional, many interfaces direction, correspondingly be that communication interface device as product also more and more develops to small size, high density direction.

In numerous connections, D connector is the more a kind of of usefulness, and so-called D connector is meant that the interface profile of connector is a similar trapezium structure, on one side big little on one side, as alphabetical D; Dual edge refers to that the contacting metal of connector partly is distributed in the both sides of connector, realizes the conducting function of electricity by contact.

Along with the high speed development of mechanics of communication, communication apparatus serial ports device is to high density, small size, multifunctional direction development.That often uses in the market has a D type 25pin connector that uses on veneer side and the cable, and it adopts the contact pin counter bore structure to realize electrically conducting, and spacing is 2.77mm between pin and the pin, and gap ratio is bigger.

There is following shortcoming in existing connector:

1, volume ratio is bigger, need take the space of equipment Handle Bar;

2, density is not high enough, and the stitch spacing is 2.77mm, has only 25PIN; Because lengthwise dimension is 53.04mm, will take Handle Bar expensive real estate resource

3, shield effectiveness is poor.The front portion of existing connector is divided into metal-back, and the rear portion of device is divided into non-metallic member, and shield effectiveness is bad.

The utility model content

The purpose of this utility model is, a kind of connector is provided, and has that volume is little, high density and a good advantage of shield effectiveness.

The technical scheme that the utility model provides is as follows:

A kind of connector, comprise be fastened and connected on, lower house, be positioned at described on, plug between lower house, lock screw, be arranged on the contact pin in the described plug, in described plug, be provided with 28 contact pins, the front and back end arrangement architecture of contact pin is as follows: the contact pin front end is two rows, each 14 stitch of every row, be divided into 0.8 millimeter in the ranks between stitch, the contact pin rear end that extends back is made as four rows, 7 stitch of every row, first row and the 4th row's stitch inwardly shrink, the step that constitutes symmetry with the second and the 3rd row's stitch is arranged, be divided into 1.6 millimeters in the ranks between the every row's stitch in rear end, first row in each shortening pin is arranged between the two adjacent stitch of second stitch, the 4th row in each shortening pin is arranged between the two adjacent stitch of the 3rd row's stitch.

The utlity model has following advantage: because the spacing of stitch is 0.8mm; Stitch has 28PIN, can dwindle the volume of connector, and the interface size of connector can be accomplished 26.6 * 7.0 millimeters, and the cable that can satisfy on the Handle Bar certain-length as much as possible lays; Simultaneously can pile up placement, the cable that satisfies on the Handle Bar certain altitude as much as possible lays; High density; Adopt metal shell structure up and down simultaneously, make the advantages of good shielding performance of connector; Small size, highdensity requirement have been satisfied.

Description of drawings

Fig. 1 is the stereogram of the utility model connector;

Fig. 2 is the three-dimensional exploded view of connector among Fig. 1;

Fig. 3 is a connector front-end architecture front view shown in Figure 1;

Fig. 4 is a plug construction front view in the connector shown in Figure 1;

Fig. 5 is Fig. 4 end view.

Embodiment

With reference to Fig. 1, Fig. 2, connector mainly consists of the following components: metal upper casing 1, metal lower shell 2, plug 3, upper and lower shell trip bolt, plugs and sockets trip bolt, wire clamp trip bolt, wire clamp, earlier plug and cable wire are welded during process and assemble, then the plugs and sockets trip bolt is put into metal lower shell 2, put into plug 3, wire clamp 5 then, cable tightened with the wire clamp trip bolt, snap in metal upper casing 1, lower casing trip bolt in the locking.

With reference to Fig. 2, metal upper and lower shell 1,2 adopts the kirsite injection-compression molding, and the nickel dam that outer spraying plating at least 50 μ m are thick constitutes.Lower casing forms a cavity by clamping on the metal, and the shackle portion of plug, cable and the cable of connector is placed in the inside.Metal upper and lower shell 1,2 has certain intensity and metallic luster, has good metal-like and good view effect.The shackle portion of cable is made up of two parts: metal wire clamp 5 and the sawtooth pattern bayonet socket that is arranged on the metal upper and lower shell, cable adds and pulls out the wire rod crust man-hour, expose the wire rod wire sheathing, with Copper Foil the wire rod braid is twined, cable wire after finishing is put into lower casing afterbody on the device metal, press the metal wire clamp, fastening with the wire clamp trip bolt.Like this, the common metal-back that constitutes a sealing of the metal shielding of metal upper and lower shell, plug and wire clamp, the external emission that effectively prevents the signal of telecommunication is disturbed and the interference of outer bound pair plug institute transmission signals, forms effective shield effectiveness.The second portion of clamping is made up of the sawtooth pattern structure of lower casing on the metal, and when last lower casing crust, the twice clamping strengthens reliability and EMC effect.The screw end of wire clamp adopts slotted hole to guarantee that wire clamp has certain affluence amount when mounted, satisfies different line footpath requirements.This cable connector can satisfy the processing of the round cable of diameter below 6.5mm.

With reference to Fig. 3, Fig. 4, Fig. 5, plug 3 mainly is made up of several parts: a plurality of contact pins 6, plug shielding case, plastic parts.Wherein contact pin 6 is divided into two parts: front end and tail end, front end are fixed on the interface of plastic parts, and the socket of realizing and matching is electrically connected; Tail end is the weldering cup 601 of an elliptical slot shape, and when the cored wire conductor of welding cable wire rod, welding wire melts and splashes into this cup.The shielding case 8 that is used to contain plug 3 is metal-backs that are D shape structure, as shown in Figure 3, its major function has two: shielding action and anti-wrong plug function, owing to be metal shell, reveal and reduce the interference of external electromagnetic from the interface sides of plug so can prevent electromagnetism effectively fully, good shielding action is just arranged transmission signals in the cable.Adopt the design of D type, on one side big little on one side, can prevent that the cable direction when being connected with socket that adopts this device to make is anti-inserted, guarantee the uniqueness and the correctness of cable installation direction.Plastic parts is the carrier of stationary positioned contact pin, and material adopts high-temperature material: the LCP+30% glass fibre is made, and can reach the temperature of 300 degree, prevents the too high thawing plastic body of temperature of electric iron in the cable welding processing process.Owing on metal lower shell, may put back at plug, can carry out asymmetric design to plug plastic spare, side in plug head is provided with a breach 301, also is provided with a breach 302 in the bottom surface of plug, and a side of lower house 2 and its bottom are provided with and above-mentioned two boss that breach matches.Can't put in the lower house 2 if plug direction has just been put back, guarantee the uniqueness of assembling.Reduce device volume and increase density, mainly need to reduce the line space and the column pitch of stitch, present 5.8mm, 3.96mm, 2.54mm, 2.5mm, 2.0mm, 1.0mm, the 0.8mm of mainly containing commonly used of processing technology comparative maturity, the line space that this connector is selected for use is 0.8mm.Because the dual edge structure distribution in the interface both sides, has reduced per-interface space, so the Rational structure of this jack interface place volume minimum is arranged to 2 rows, 14 row dual edge structures exactly, with reference to Fig. 3.Equally, in unit length, realize minimum spacing, also realized the maximum stitch density on the unit length simultaneously.From the angle of welding processing, the spacing of welding is more little, and the inter-adhesive probability of tin silk becomes big during welding, and is unfavorable more to the machinability of welding, also is inconvenient to operate.So tail end at stitch, the arrangement of stitch is made as 4 rows, 7 row, first row and the 4th row's stitch inwardly shrink, the step that constitutes symmetry with the second and the 3rd row's stitch is arranged, be divided into 1.6 millimeters in the ranks between the every row's stitch in rear end, each interior shortening pin of first row is arranged between the two adjacent stitch of second row's stitch, each interior shortening pin of the 4th row is arranged between the two adjacent stitch of the 3rd row's stitch, each end face of plug is 2 rows, 7 row, stepped distribution, like this each stitch in the pitch enlargement of weldering cup weld one times become 1.6mm, convenient welding and reduce the processing error rate.

The advantage of this connector: small size, high density, good shield effectiveness. Inverse plugging and counnter attack Dress. Use different gauge or diameter of wires. 0.8mm spacing and stitch 4 rows distribute and realize small size, high density Requirement. Black box adopts metal parts and the multiple crimping of wire rod screen layer to realize high shield effectiveness more; Cable inverse plugging and counnter attack assembling function. The wire rod processing request that adapts to different wire diameters.

Claims (4)

1, a kind of connector, comprise be fastened and connected on, lower house, be positioned at described on, plug between lower house, lock screw, be arranged on the contact pin in the described plug, it is characterized in that, in described plug, be provided with 28 contact pins, the front and back end arrangement architecture of contact pin is as follows: the contact pin front end is made as two rows, each 14 stitch of every row, be divided into 0.8 millimeter in the ranks between stitch, the contact pin rear end that extends back is made as four rows, 7 stitch of every row, first row and the 4th row's stitch inwardly shrink, and constitute the step arrangement of symmetry with the second and the 3rd row's stitch, are divided into 1.6 millimeters in the ranks between the every row's stitch in rear end, each interior shortening pin of first row is arranged between the two adjacent stitch of second row's stitch, and each interior shortening pin of the 4th row is arranged between the two adjacent stitch of the 3rd row's stitch.

2, according to the described connector of claim 1, it is characterized in that described upper and lower casing is the metallic shield member, a side of described plug head is provided with a breach, the bottom surface of described plug also is provided with a breach, and described lower house one side and its bottom are provided with the boss that matches with described breach.

3, according to the described connector of claim 1, it is characterized in that, be provided with the D shape metal shielding that can contain described plug head in described plug head.

According to the described connector of claim 3, it is characterized in that 4, the cable wedging position of described upper and lower shell rear end is equipped with the sawtooth pattern bayonet socket, also be provided with the metal wire clamp that is used for fixing cable at the wedging position of lower house; Shielded metal housing that is electrically connected to each other of the common formation of described metal upper and lower shell, plug metal shielding and wire clamp.

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