CN2741234Y

CN2741234Y - Core wire stand of crystal plug

Info

Publication number: CN2741234Y
Application number: CNU2004200838557U
Authority: CN
Inventors: 杨钧义
Original assignee: HUIZHOU JIAYI ELECTRONIC CO Ltd
Current assignee: HUIZHOU JIAYI ELECTRONIC CO Ltd
Priority date: 2004-09-10
Filing date: 2004-09-10
Publication date: 2005-11-16
Anticipated expiration: 2014-09-10

Abstract

The utility model discloses a core thread bracket of a crystal plug for telecommunication. The utility model comprises a main body and slot holes, wherein the slot holes on the main body are used for fixing a core thread and are arrayed on the main body in a cross shape; the external shape of the main body is a cuboid. More specifically, two middle holes of the slot holes are H-shaped holes with an upper and a lower openings; the tops or the lower parts of the slot holes at the left and the right sides are provided with openings used for fixing four sets of multiple-twin core threads. The utility model has the advantages that with the utility model, an eight-core pair-twist core thread cable is fixed in the crystal plug reliably, and the part of each pair of pair-twist core thread, of which pair twist is broken, is the shortest when each pair of pair-twist core thread is disassembled in the core thread bracket; the spacing distance of core threads in the core thread bracket and the crystal plug is increased, and accordingly, parasitic capacity and electromagnetic interference are reduced; thus, the crystal plug which adopts the core thread bracket of the utility model satisfies the requirement of six types of wire laying standard on two important parameter indexes of NEXT (near-end crosstalk) and RL (return loss).

Description

The heart yearn support that is used for quartzy plug

Technical field

The utility model relates to telecommunications and uses the connector field, particularly a kind of support that is used for fixing four groups of multiple twin heart yearns of 8 cores that is embedded in 8 lead-in wire (8P) quartzy plug inner chambers.

Background technology

Along with the IT technology rapid development, as the comprehensive wiring system of network infrastructure and information transmission platform also at synchronized development, the six type routing standard of latest edition (Cat.6 standard) is exactly to release for the raising that adapts to network speed and the needs of spread bandwidth, and the development of whole industry has been produced very important influence.

The six type routing system is by constituting such as many assemblies such as cable, wire jumper, connectors.So intrasystem each parts, link and channel all should satisfy the Cat.6 standard, more should be like this as the quartzy plug (also claiming crystal head) of primary element.

At present popular prior art 8 lead-in wire (8P) quartzy plugs (claiming RJ45 connector again) be the quartzy plug (as shown in Figure 1, 2) of " four high four is low " formula that common bilayer misplaces one by one and arranges, place a heart yearn support in its cuboid inner chamber, support is provided with heart yearn perforation---8 holes that just two-layer dislocation is one by one arranged, and is used for fixing fixing four groups of 8 heart yearns after the pair twist destruction.The shortcoming of this heart yearn support is that heart yearn is fixing separately within it, the double-deck dislocation of height is arranged, make split the solving long (also claiming: destroy pair twist) in heart yearn termination of wiring back pair twist, line between the distance less, parasitic capacitance is big, electromagnetic interference is serious, thereby causes the quartzy plug of prior art 8P to be difficult to satisfy the requirement of six type routing standard (Cat.6 standard) on NEXT (near-end crosstalk) and two important parameter indexs of RL (return loss).

Summary of the invention

Task of the present utility model is the defective that will overcome prior art, designs a kind of novel heart yearn support, and adapted can make the NEXT (near-end crosstalk) of the quartzy plug of 8 heart yearns and RL (return loss) reach minimum with it, thereby satisfies the requirement of up-to-date six type routing standard.

The technical solution of the utility model is as follows:

A kind of heart yearn support that is used for quartzy plug, comprise body and on the slotted eye that is used for fixing heart yearn, the profile that it is characterized in that said body is a cuboid, its size matches with the afterbody cavity of the quartzy plug of 8 cores of institute adapted; Described slotted eye is arranged by " ten " font on body.

Furthermore, two holes, centre of described slotted eye are " H " shape hole of band upper and lower opening, and the top of left and right sides slotted eye or bottom also are provided with opening, are used for fixing the heart yearn of four groups of multiple twins.

The utility model has the advantages that can to make 8 core pair twist heart yearn cables not only reliable at the quartzy plug internal fixation of 8P, and the heart yearn in the heart yearn support (or saying in quartzy plug) of (4 pairs) pair twist is disassembled for each and to destroy the part of pair twist the shortest, the spacing distance of each heart yearn in heart yearn support and the quartzy plug of 8P increases, thereby parasitic capacitance is diminished, and electromagnetic interference descends.Test shows that the quartzy plug of the 8P of adapted the utility model heart yearn support has all satisfied the requirement of six type routing standard (Cat.6 standard) on NEXT (near-end crosstalk) and two important parameter indexs of RL (return loss).

Description of drawings

Fig. 1 is the combination schematic diagram of quartzy plug of prior art 8 heart yearns and internal core wire support thereof;

Fig. 2 is the structural representation of the utility model heart yearn support;

Fig. 3 is that Fig. 2 is the end face structure schematic diagram of heart yearn support;

Fig. 4 is the assembly method schematic diagram of four group of 8 core twisted-pair feeder in the utility model heart yearn support;

Fig. 5 is the schematic cross-section of 8 core cables.

Fig. 6 is the end view of the quartzy plug of 8 heart yearns.

Embodiment

The heart yearn support that is used for quartzy plug shown in Fig. 1-6, is seen on body 1 profile to be roughly cuboid, and its size matches with the afterbody cavity 10 of the quartzy plug of 8 lead-in wires of adapted.Body 1 is provided with 4 slotted eyes 2,3,4,5 that are used for fixing heart yearn, arranges by " ten " font.Two holes 3,4, centre of slotted eye 2,3,4,5 are " H " shape hole of band upper and lower opening 31,41, the top of left and right sides slotted eye 2,5 or bottom also are provided with opening 21,51, are used for fixing 8P heart yearn cable 7 and are opened four groups in 8 cores that expose behind the sheath 8 (or say outer by) heart yearn 6 of pair twist in twos.

The utility model and cable core are (referring to the Fig. 4) that connects like this: 1, select to meet four couple (8 core) heart yearn cable 7 of six type routing standard, peel the sheath 8 of one end off; 2, four pairs of heart yearns 6 are outwards separated along the soft cross 71 in the heart yearn cable 7, again four pairs of heart yearns 6 are embedded in the slotted eye 2,3,4,5 of the utility model heart yearn supports by soft cross 71 original position, hole 72,73,74,75 correspondences.3, the heart yearn end portion of pair twist is taken each apart (claiming to destroy pair twist again), smooth out with the fingers straight; 4, each is filled in the quartzy plug 9 together with the utility model heart yearn support the heart yearn termination, and make in the location hole 11 of corresponding each heart yearn that inserts quartzy plug 9 in each heart yearn termination; 4, last, with crimping tool gold plaque 12 is punctured and to be pressed into each lead-in wire, just can make each heart yearn high and low low by 1,3,7 heart yearns from left to right corresponding to gold plaque 12, the high sequence arrangement of 2,4,5,6,8 heart yearns reaches the purpose that reduces cross-talk and return loss.

The heart yearn support adopts that rigid plastics, benefit have three: 1, each is fixed in the corresponding groove heart yearn, and ruined pair twist part (particularly 36 pairs and 45 pairs of lead-in wires) is the shortest during separated time, can reduce cross-talk and return loss.2, line between distance increase, the big more line capacitance of distance is more little, thereby reduces near-end crosstalk (NEXT).3, more convenient in the operation, heart yearn is fixed can be not messy yet, and the plug heart yearn is more smooth.

Claims

1, a kind of heart yearn support that is used for quartzy plug, comprise body (1) and on the slotted eye that is used for fixing heart yearn (2,3,4,5), the profile that it is characterized in that said body (1) is a cuboid, and its size matches with the afterbody cavity (10) of the quartzy plugs of 8 cores (9) of institute adapted; Described slotted eye (2,3,4,5) is gone up by " ten " font at body (1) and is arranged.

2, according to the described quartzy plug of claim 1, it is characterized in that " H " shape hole of two holes, centre (3,4) of described slotted eye (2,3,4,5) for band upper and lower opening (31,41), the top of left and right sides slotted eye (2,5) or bottom also are provided with opening (21,51), are used for fixing the heart yearn (6) of four groups of multiple twins.

3,, it is characterized in that described body (1) made by hard material according to claim 1 or 2 described quartzy plugs.