CN2468179Y

CN2468179Y - Filter for cable connector

Info

Publication number: CN2468179Y
Application number: CN01209978U
Authority: CN
Inventors: 郭洲荣
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2001-03-06
Filing date: 2001-03-06
Publication date: 2001-12-26
Anticipated expiration: 2011-03-06

Abstract

The utility model relates to a filter device for cable connectors, which comprises a hollow cylindrical iron magnet core which is sheathed out of a cable and a protection cover which covers the iron magnet core. The protection cover is composed of a couple of lockable upper and lower shells which are mutually buckled, the two shells are symmetrical and both comprises body parts and conical neck parts, wherein, the inner surface of the cylindrical body is axially and separately distributed with a plurality of projected ribs, wherein, the middle projected ribs are supporting ribs, the projected ribs at both sides are provided with oblique angle-shaped top parts, so the projected ribs can elastically clamp the contained iron magnet core. Both ends of the shell are respectively provided with semi-circular flutes, and the flute is uniformly distributed with a plurality of jagged projected strips so as to clamp the cable.

Description

The filter of wire and cable connector

The utility model is a kind of filter, refers to a kind of filter that is used for wire and cable connector especially.

For solving the problem of wire and cable connector signal cross-talk, industry adopts the technology that installs a filter in the cable appropriate position additional usually, to reach the purpose of filtering noise.Existing filter comprises the ferromagnetic core ring and is nested with insulation shell in its outside, and this housing can be protected and fixing ferromagnetic core ring, and the position relation between itself and cable can not changed.The ferromagnetic core ring generally has detachable and the integral type dual mode with combining of insulation shell.Detachable filter is to be buckled into one mutually and the ferromagnetic core ring is contained in the housing by two housings.Yet,, can't prevent that this ferromagnetic core ring from relatively moving in enclosure interior though this type of existing structure can be housed in the ferromagnetic core ring in the housing at present.Severe patient can get loose because of rocking more greatly of ferromagnetic core ring causes its outside combined shell, and simultaneously, relatively moving of ferromagnetic core ring also can seriously undermine its filter effect to noise.And the integral type filter that housing and ferromagnetic core ring and cable one injection molding are formed because of it is that the time processing moulding can't be guaranteed product quality, and is that follow-up heavy industry causes difficulty because of it is difficult to dismounting, thereby the processing cost of product is improved.

Therefore, need a kind of filter that is used for wire and cable connector of improvement, make its housing firm, reach good filtering effect then with combining of ferromagnetic core ring and cable.

Main purpose of the present utility model is to provide a kind of wire and cable connector filter, is provided with the resiliency supported rib in this kind filter, makes the ferromagnetic core ring more stable with combining of insulation shell, thereby reaches good filtering effect.

Another purpose of the present utility model is to provide a kind of wire and cable connector filter, and this kind filter two ends have the zigzag raised line, makes the clamping of itself and cable, location more accurate, thereby guarantees preferable filter effect.

For reaching above-mentioned purpose, filter of the present utility model comprises that a hollow cylindrical ferromagnetic core and coats the insulation protection cover of this ferromagnetic core, and this hollow cylindrical ferromagnetic core is coated on outside the cable, in order to get rid of noise.This insulation protection cover is made up of upper and lower two housings, is provided with receiving space in it to accommodate the hollow cylindrical ferromagnetic core.This two shell structures symmetry, include a columnar body portion and a conical neck, evenly be furnished with some prominent ribs on the main part inner surface, wherein Zhong Bu prominent rib is a ribs, the prominent rib of both sides is the resiliency supported rib with inclination top, so as to the resilient clamp ferromagnetic core.The forward and backward two ends of housing are respectively equipped with a semi-circular recesses, are evenly equipped with some zigzag raised lines on this semi-circular recesses, are used to clamp built-in cable.One side of the interface that two housings mutually combine is staggeredly equipped with a pair of pin respectively, pegs graft with the slot that docks the housing relative set by this pin, forms the protective cover of ferromagnetic core thereby two housings are combined as a whole.

Because adopt such scheme, filter of the present utility model not only makes the combination between housing, ferromagnetic core and cable more firm, part is single simultaneously is convenient to production management.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the three-dimensional exploded view of the utility model filter.

Fig. 2 is the three-dimensional combination figure of the utility model filter.

Fig. 3 is the cutting stereogram of the utility model filter.

Fig. 4 is the left view of protective cover lower house shown in Figure 1.

Fig. 5 is the vertical view of protective cover lower house shown in Figure 1.

Fig. 6 is the front view of protective cover lower house shown in Figure 5.

Fig. 7 is the cutaway view of Fig. 6 A-A along the line.

Fig. 8 is the cutaway view of Fig. 6 B-B along the line.

Fig. 9 is the cutaway view of Fig. 6 C-C along the line.

See also Fig. 1 and Fig. 2, the utility model filter 100 comprises a hollow cylindrical ferromagnetic core 10 and an external insulation protection cover 20.This hollow cylindrical ferromagnetic core 10 is a tri-iron tetroxide magnetic core, and it is coated on cable 200 outsides, in order to get rid of the wire and cable connector noise of (figure does not show).The insulation protection cover 20 of filter 100 is to be coated on ferromagnetic core 10 outsides, so as to fixing and protect this ferromagnetic core 10 in the appropriate position of cable 200.Insulation protection cover 20 is made up of 21,22 of upper and lower disymmetrical half housings, is provided with a receiving space 29 in it to accommodate hollow cylindrical ferromagnetic core 10.

See also Fig. 3, Fig. 4 and Fig. 5, lower house 22 comprises a main part 23 and a

conical neck

24,23 one-tenth hollow semi-cylindricals of main part, evenly be furnished with four prominent ribs 231,232 on its inwall, a pair of prominent rib at middle part is a ribs 232, the ferromagnetic core 10 of the contact-making surface that this top to ribs 232 is a rough inclination to support to be accommodated, the prominent rib of its both sides is elastic ribs 231 that the top is wedge angle, so as to resiliency supported ferromagnetic core 10, with its accurate location, prevent its slip simultaneously.The antetheca 251 of this lower house 22 and rear wall 252 upper edge semi-circular recesses 253 evenly are furnished with some zigzag raised lines 254, so as to the cable 200 that holds wire and cable connector.24 of the main part 23 of lower house 22 and conical neck are formed with one against rib 28, and fixing is also located hollow cylindrical ferromagnetic core 10.See also Fig. 6 to Fig. 9, a side of lower house 22 interfaces 30 vertically extends a pair of pin 233, and the top of this pin 233 is barb-like.The opposite side relative to pin 233 with this in axial direction is arranged at intervals with a pair of slot 235, and plugging together mutually with the corresponding pin 211 (Fig. 1) of upper shell 21, thereby affixed upper and

lower casing

21,22 is an one.Offer the groove 236 of having strong market potential in 233 of two pins on interface 30, be formed with a bar shaped pin rib 234 in the opposite side of this cotter way 236, this pin rib 234 and cotter way 236 can engage mutually with cotter way 236, the pin rib 234 of relative set on the upper shell 21.Wall 251 and rear wall 253 also are respectively arranged with a pair of guide posts 26 and draw-in groove 27 before the lower house 22 on its interface 30, and this guide posts 26 is positioned at the same side with pin 233.

During combination; please continue to consult first figure; at first hollow cylindrical ferromagnetic core 10 is placed on the cable 200 of wire and cable connector; then; ferromagnetic core 10 and cable 200 are placed in the lower house 22 of protective cover 20 together; at this moment, ferromagnetic core 10 1 ends are resisted against on the rear wall 252 of lower house 22, and cable 200 then stretches out respectively from two semi-circular recesses 253.At last, by each guide posts 26 and corresponding draw-in groove 27 butt joints, each pin 233 and corresponding slot 235 buckles, thereby upper and lower two

housings

21,22 are buckled into one.Because the top of elastic rib 231 has wedge angle, therefore behind upper and lower two housings, 21,22 buckles, four elastic ribs 231 of upper and

lower casing

21,22 form a radial load when clamping hollow cylindrical ferromagnetic core 10, this radial load not only firmly is clamped in ferromagnetic core 10 center of upper and

lower casing

21,22, and makes pin 233 more reliable with engaging of slot 235.Simultaneously, joint and last zigzag raised line 254 thereof by two semi-circular recesses 253 make cable 200 accurate positionings of clamping, thereby make the relative position between this cable 200 and the ferromagnetic core 10 fix, to reach preferable filter effect.

Claims

1. filter is used on the wire and cable connector to get rid of noise, and it comprises that one is located on the hollow cylindrical ferromagnetic core and a protective cover of appropriate position, the cable outside, and this protective cover is coated on the ferromagnetic core outside; It is characterized in that: be furnished with some prominent ribs on the cylindrical inner wall of protective cover at interval and reach fixedly ferromagnetic core in order to support; wherein Zhong Bu prominent rib is a ribs; the prominent rib of ribs both sides is the elastic ribs with tip-angled shape top, but this elastic rib elasticity is supported ferromagnetic core, and makes its accurate positioning.

2. filter according to claim 1 is characterized in that: the top of ribs has a contact-making surface that inclination arranged slightly.

3. filter according to claim 2 is characterized in that: protective cover is made up of upper and lower two housings of symmetrical configuration.

4. filter according to claim 3 is characterized in that: on the front and back walls of protective cover, is respectively equipped with a groove, evenly is furnished with some dentation raised lines in this groove, but the cable of this raised line clamping, fixed cable connector.

5. filter according to claim 4 is characterized in that: a side of each housing interface is arranged at intervals with some pins, and relative opposite side then is arranged at intervals with some slots, with the slot and the pin buckle of another housing that docks.

6. filter according to claim 5 is characterized in that: on interface, offer a cotter way between adjacent two pins, the corresponding bar shaped pin rib that forms of the opposite side of this cotter way, cotter way and pin rib can with dock housing on sell rib and cotter way clamping accordingly.

7. filter according to claim 6 is characterized in that: the interface of protective cover front and back walls is respectively equipped with draw-in groove and guide posts, with dock housing on the guide posts of relative set and draw-in groove engage.