CN2243129Y

CN2243129Y - Earthing device of connector

Info

Publication number: CN2243129Y
Application number: CN 95223714
Authority: CN
Inventors: 甘克俭; 郑启升
Original assignee: Hon Hai Precision Industry Co Ltd
Current assignee: Hon Hai Precision Industry Co Ltd
Priority date: 1995-10-11
Filing date: 1995-10-11
Publication date: 1996-12-18
Anticipated expiration: 2005-10-11

Abstract

The utility model relates to an earthing device of a connector, which comprises a body, a first shielding member, a second shielding member and an earthing strip. Except that the first shielding member and the second shielding member of the earthing device of a connector are used for shielding the five surfaces of a connector housing, a socket is arranged in the first shielding member, and the surface is provided with a jagged ferrule used for shielding the socket of the connector. In addition, a stable assembling mode for the earthing strip is provided for contacting a computer host casing. Therefore, the problem of signal disturbance caused by the accumulation of external electromagnetic waves and internal static charges is solved simultaneously, and the excellent shielding and earthing effects are achieved.

Description

The earthing device of connector

The utility model is the earthing device about a kind of connector, particularly at being installed in the connector earthing device that circuit board end limit has firm earthing device structure.

For preventing that connector in use is subjected to electromagnetic interference, in the industry cycle adopt two kinds of methods usually.First method is to add filter at the adapter connector connecting place, and to filter unnecessary signal, second method is to utilize metallic shield to cover the appearance of connector, so that completely cut off the insulation shell that extraneous electromagnetic interference penetrates connector.For being located at the end edge connector of circuit board end limit in order to transmission casing external signal, because its housing is a plastic casing, appearance there is no the metal cap shielding, so the dealer adopts above-mentioned second method mostly, the housing that covers this end edge connector with metallic shield prevents electromagnetic interference.Yet, owing to still have a gap between this end edge connector and the host computer casing, therefore, outside the situation of its electromagnetic interference of bound pair must be noted that, still must be noted that the problem of the electrostatic interference of above-mentioned gap existence.In the past know technology, at the solution countermeasure of the noise jamming problem of above-mentioned end edge connector three kinds of methods are arranged haply.First method is to utilize two metallic shields that separate, housing in order to shielding end edge connector, as shown in Figure 1, Fig. 1 shows the three-dimensional exploded view of knowing a kind of end edge connector shielding construction, the shielding construction of this end edge connector is made up of body 1, external shield member 2 and interior contact member 3, wherein, external shield member 2 is provided with two grounding legs 4, and interior contact member 3 also is provided with grounding leg 5, when this shielding construction is connected on the circuit board, above-mentioned grounding leg 4,5 just is connected with earthed circuit on the circuit board, has formed ground path.Yet; above-mentioned shielding construction; a kind of more complete shielding protection can not be provided; still having the housing appearance of this end edge connector of part is to be shielded by external shield member 2 or interior contact member 3; the part electromagnetic interference noise will penetrate other not by housing that this shield member shielded; therefore; the interference that still can't completely cut off the external electromagnetic ripple effectively; moreover; its earthing device of above-mentioned shielding construction is that electromagnetic interference noise fully is disposed in the earthed circuit of circuit board; because the current densities height of circuit board; too much electromagnetic interference noise is disposed to circuit board also can disturbs to some extent other circuit in the circuit board, related also can the generation back this end edge connector disturbed phenomenon, in addition; owing to have a gap between this end edge connector and the host computer casing; the existence in this gap has often caused the accumulation of electrostatic charge, thereby produces the problem of electrostatic interference; therefore, shielding is unsatisfactory with the effect of ground connection.U.S. Patent number: 4,913,664,4,936,795,4,938,714,5,017,158,5,035,651, the TaiWan, China patent No.: 76210812,77208107,78204790,79200300,79204356,79206847,79209245,80208028,80208342,81205167, be all this type of case.Second method is device one ground strip on the end edge connector.Owing to have a gap between end edge connector and the host computer casing, on this end edge connector, install ground strip, it is contacted with the host computer casing, the electrostatic charge that pile up in above-mentioned gap can be drained in the casing, avoid accumulation, and cause the phenomenon that signal disturbs because of electrostatic charge.As shown in Figure 2, Fig. 2 has shown the earthing device of another kind of end edge connector, this end edge connector 6 be provided with on its one side of socket 7 mode with the screw combination with a ground strip 8 devices on end edge connector 6.Yet; above-mentioned end edge connector earthing device owing to fail provides this end edge connector housing one comparatively airtight shielding protection; so still can't avoid the interference of external electromagnetic ripple; and; in the mode that screws togather ground strip 8 is combined on the end edge connector 6; not only increase assembly cost, waste man-hour, and consume material.

Therefore, the purpose of this utility model is to provide a kind of earthing device of connector, can prevent the interference of electromagnetism and static simultaneously, and structure is firm.

For achieving the above object, the said apparatus that the utility model provides is by a body, first shield member, secondary shielding member, and a ground strip is assembled.Wherein, this body is the cube with six planes generally, is provided with a socket in this cubical wherein one side, and is provided with at least one terminal in this socket, combines in order to the plug with this socket butt joint; And the combination of first shield member and secondary shielding member provides a kind of five metallic shield to be coated on this body, preceding ground plane central authorities at first shield member stamp out a zigzag becket, socket in order to shading body, the socket that makes plug and body in conjunction with the time, can produce the ground connection effect, and establish a fastener near the preceding ground plane end limit of circuit board in first shield member, this fastener also is provided with a horizontal part and a grounding leg, and this grounding leg can be connected with the ground path of circuit board, and first shield member respectively be provided with grounding leg near the ground plane end limit, both sides of circuit board, this grounding leg also can be connected with the ground path of circuit board; And ground strip is provided with an opening, so that plug can combine with the socket of body via this opening, and respectively be provided with buckling parts in the both sides of ground strip bottom, this buckling parts is one-body molded with ground strip, when ground strip and the assembling of first shield member, the buckling parts of this ground strip is bent into generally is parallel direction with the preceding ground plane of first shield member, both sides in this buckling parts respectively are provided with vertical component effect and horizontal part, there is a gap between the horizontal part of both sides and make, the spacing perseverance in this gap is less than the horizontal part width of the first shield member fastener, make ground strip more firmly build-in on first shield member, and share the earthed circuit of three grounding legs of first shield member, avoid because of interference noise being imported in the earthed circuit of circuit board fully, cause too much interference noise to cause the interference of board circuit and returning of connector to disturb because of the circuit of circuit board is overstocked.After connector earthing device assembling of the present utility model is finished, can make ground strip contact host computer casing, so, constituted the bulk shielding grounding system of this connector earthing device together with three grounding legs, first shield member and the secondary shielding member of first shield member.

So connector earthing device of the present utility model because first shield member and the combination hermetically of secondary shielding member provide connector body complete shielding protection, makes it avoid the interference of external electromagnetic ripple; And firm ground strip means for mounting coupling parts has solved the gap because of connector and the existence of host computer casing, the electrostatic interference of generation, and, share the earthed circuit of partial circuit plate, thereby saved manufacturing and assembly process, also saved man-hour and material cost.

For the purpose of the profit explanation, the utility model will explain with following preferred embodiment:

Fig. 1 is an isometric exploded view of knowing the connector earthing device;

Fig. 2 is another three-dimensional view of knowing the connector earthing device;

Fig. 3 is the isometric exploded view of preferred embodiment of the present utility model;

Fig. 4 is the front view of preferred embodiment of the present utility model;

Fig. 5 is in the preferred embodiment of the present utility model after the assembling of ground strip and first shield member, the preceding ground plane of first shield member and the bonding state figure of ground strip;

Fig. 6 is the upward view of preferred embodiment of the present utility model;

Fig. 7 is the end view of preferred embodiment of the present utility model;

Fig. 8 is the vertical view of preferred embodiment of the present utility model;

Fig. 9 is the three-dimensional view of preferred embodiment of the present utility model;

Figure 10 is the plane outspread drawing of ground strip in the preferred embodiment of the present utility model;

Figure 11 is the rearview of preferred embodiment of the present utility model;

Figure 12 is the user mode figure of preferred embodiment of the present utility model.

Please refer to Fig. 3, Fig. 3 is the isometric exploded view of a preferred embodiment of the present utility model, and connector earthing device of the present utility model mainly comprises:

One body 9, it is for being the cube with six planes generally, wherein one side in these six faces is provided with a socket 10, and be provided with at least one terminal 11 in this socket 10, combine in order to plug with these socket 10 butt joints, the pin of this terminal 11 is by stretching out (that is the bottom surface shown in Fig. 3) perpendicular to a plane on this plane, socket 10 place, to be connected on the circuit board, and the copline 12 on the plane of stretching out perpendicular to the pin of the plane at socket 10 places and terminal 11 is provided with a guide groove 13 at the same time, and is provided with clamping part 14 in guide groove 13;

First shield member 15, by preceding ground plane 16, two side ground planes 17, and a top clamping part 18 constitutes (be sharp explanation, special label 16 elements with Fig. 3-lower right of ground plane 16 hollows out before promptly calling in the following text, in order to label 26 elements-promptly call in the following text fastener 26 is described); Wherein, be provided with buckle insertion section 20 internally curved mutually and that mouth 19 is inserted in formation respectively at its two sides ground plane 17, after slipping in order to guide groove 13 by body 9, be snapped in the clamping part 14 of body 9, so that two side ground planes 17 can fix the location, and stamp out shell fragment 21, after slipping in order to guide groove 13 by body 9 with respect to first shield member, 15 inside in two side ground planes 17, be equipped on the plane 12 at guide groove 13 places of body 9, to strengthen the usefulness of fixing; And, be provided with grounding leg 22 respectively at its two sides ground plane 17 with respect to the end limit of circuit board, in order to be connected, in addition, and respectively be provided with internally curved mutually stage portion 23 in an end limit of two side ground planes 17 (being the upper end shown in Fig. 3) with the ground path of circuit board; And the central authorities in preceding ground plane 16 are arranged with an opening 24, so that the socket 10 of body 9 exposes, so that and combine (as shown in Figure 4) with the plug of connector butt joint, and, these opening 24 places stamp out a zigzag becket 25, socket 10 in order to shading body 9, when combining with this socket 10 with the plug of connector butt joint, this becket 25 has the effect of ground connection, and stamp out a fastener 26 with respect to the end limit middle position of circuit board at preceding ground plane 16, this fastener 26 tools one relatively perpendicular to horizontal part 27 of preceding ground plane 16 and perpendicular to the grounding leg 28 of this horizontal part 27 (as Fig. 5, shown in 6), this grounding leg 28 will be in order to be connected with the earthed circuit of circuit board;

Secondary shielding member 29, constituted by a top ground plane 30 and back ground plane 31, wherein, this top ground plane 30 is provided with a fastening part 32 in the socket 10 end limits of relative body 9, engage (as Fig. 7 in order to top clamping part 18 with first shield member 15, shown in 8), and respectively be provided with two insertion sections 33 in the end limit vertical direction of two side ground planes 17 of back ground plane 31 relative first shield members 15, and be provided with a shell fragment 34 in this insertion section 33, in order to when inserting the buckle insertion section 20 of first shield member 15, fix the insertion mouth 19 of this buckle insertion section 20, and, be respectively equipped with lip portions 35 with stage portion 23 overlap joints of first shield member 15 in the two side ends limit of this back ground plane 31, in order to when first shield member 15 combines with secondary shielding member 29, keep two side ground planes 17 parallel of first shield member 15 and eliminate first shield member 15 and secondary shielding member 29 combine after the gap, so that first shield member 15 is become one with secondary shielding member 29, be coated on body 9 outer (as shown in Figure 9);

One ground strip 36, these ground strip 36 central authorities are provided with an opening 37, so that plug can be combined with the socket 10 of body 9 via this opening 37, and respectively be provided with buckling parts 38 in the two side ends of ground strip 36 bottoms, this buckling parts 38 is and ground strip 36 one-body molded (as shown in figure 10), when

ground strip

36 and 15 assemblings of first shield member, the buckling parts 38 of this ground strip 36 is bent into generally is parallel direction (as shown in Figure 5) with the preceding ground plane 16 of first shield member 15, and be provided with vertical component effect 39 (as the Z-direction of Fig. 3) in this buckling parts 38, and horizontal part 40 (as the X-direction of Fig. 3), and be provided with a gap 41 between the horizontal part 40 of dual-side, the clearance distance d1 perseverance in this gap 41 is less than the width d2 of the horizontal part 27 of the fastener 26 of first shield member, make ground strip 36 build-ins on first shield member 15 (as shown in Figure 5), and do not have the possibility that comes off.

As shown in figure 12, after connector earthing device of the present utility model is finished in assembling, make ground strip 36 contact host computer casings 42, so, constituted the integral ground shielding harness of this connector earthing device together with two grounding legs 22, a grounding leg 28 (as shown in figure 11), first shield member and the secondary shielding member of first shield member 15.

As mentioned above, according to connector earthing device structure of the present utility model, the shielding construction that combines by first shield member 15 and secondary shielding member 29, a kind of five airtight screening arrangement is provided, enable more effectively to prevent electromagnetic interference, in addition, a firm again ground strip 36 easy to assembly is still arranged in order to contact host computer casing 42, can prevent the generation of electrostatic interference, and then reach better ground connection effect.

In sum, above institute disclosure only is a preferred embodiment of the present utility model, any personage who is familiar with this technology, when can be under the scope that does not break away from essence spirit of the present utility model and appended claim, the utility model is done a little retouching and modification, thereby these designs, all be contained within the accompanying Claim scope.

Claims

1, a kind of earthing device of connector is characterized in that it comprises:

One body, it is cube, wherein simultaneously is provided with a socket in this cube, and this socket is provided with at least one terminal, combines in order to the plug with this socket butt joint, and the pin of this terminal is stretched out by described cubical another plane, to be connected on the circuit board;

At least one shield member, each shield member has a ground plane at least, establishes an opening on the ground plane of a shield member therein, so that the socket of body exposes, and establishes a fastener at this ground plane, this fastener also is provided with a horizontal part;

One ground strip, this ground strip is provided with an opening, so that plug can combine with the socket of body via this opening, the both sides of this ground strip respectively are provided with buckling parts, this buckling parts is provided with vertical component effect and horizontal part, have a gap and make between the horizontal part of both sides, the spacing perseverance in this gap can firmly be mounted on this shield member ground strip less than the horizontal part width of above-mentioned shield member.

2, the earthing device of connector according to claim 1 is characterized in that this shield member is first shield member, and by ground plane, two side ground planes before one, and a top clamping part constitutes.

3, the earthing device of connector according to claim 1 is characterized in that, is provided with guide groove on the copline perpendicular to plane, socket place and face circuit board plane simultaneously at described body, and this guide groove is provided with clamping part.

4, as the earthing device of connector as described in the claim 2, it is characterized in that other establishes a secondary shielding member, this secondary shielding member is made of a top ground plane and a back ground plane.

5, as the earthing device of connector as described in the claim 2, it is characterized in that, establish a zigzag becket at the opening part of described first shield member, in order to shield the socket of described body.

6, as the earthing device of connector as described in the claim 2, it is characterized in that two side ground planes of described first shield member are respectively equipped with shell fragment, slip into the described body of back blocking in order to guide groove by described body.

7, as the earthing device of connector as described in the claim 2, it is characterized in that, be provided with grounding leg on described first shield member two side ground plane end limits, in order to be connected with the ground path of circuit board near circuit board.

8, as the earthing device of connector as described in the claim 2, it is characterized in that the horizontal part of ground plane fastener is provided with the grounding leg perpendicular to this horizontal part before described first shield member.

9, as the earthing device of connector as described in the claim 3, it is characterized in that, the described two side ground planes of described first shield member are respectively equipped with and can form the buckle insertion section of inserting mouth, after slipping in order to guide groove by described body, be snapped in the clamping part of this guide groove, and make described two side ground planes can fix the location.

As connector earthing device as described in the claim 4, it is characterized in that 10, the described top ground plane of described secondary shielding member is provided with a fastening part in the end limit near described body socket relatively, in order to the described first shield member top clamping part engaging.

11, as the earthing device of connector as described in the claim 4, it is characterized in that, limit, ground plane two ends behind the described secondary shielding member of described relatively first shield member, two side ground planes, respectively be provided with the insertion section on vertical this limit, two ends, this insertion section is provided with a shell fragment, when inserting the buckle insertion section of described first shield member, fix the insertion mouth of this buckle insertion section when the insertion section of described secondary shielding member.

12, as the earthing device of connector as described in the claim 4, it is characterized in that, two side ground plane end limits at described first shield member respectively are provided with stage portion, and the two side ends limit of ground plane is respectively equipped with lip portions with the stage portion of above-mentioned first shield member overlap joint behind described secondary shielding member.