CN1299167A

CN1299167A - Socket using resistance element for applying plug discharging

Info

Publication number: CN1299167A
Application number: CN 00126894
Authority: CN
Inventors: E·伯恩斯坦; J·陈; R·G·施林
Original assignee: Baer Fox Corp
Current assignee: Baer Fox Corp; Bel Fuse Inc
Priority date: 1999-08-30
Filing date: 2000-08-30
Publication date: 2001-06-13

Abstract

A socket comprises a housing of the chamber for receiving the plug; a number of socket contacts are located in the chamber for contacting with the corresponding contact feet of the plug; a number of earthed contacts relative to the number of contacts of each socket, wherein the earthed contacts are located in the chamber by conduction bearing, so that before contacting with the socket contacts, the contact feet of the plug are engaged with or departed from the earthed contacts consecutively. The earthed contacts are earthed by conduction bearing, and before contacting of the contact feet of the plug with the socket contacts, each contact foot of the plug can discharge by resistance element so that any of the static electricity on the contact feet of the plug can be discharged.

Description

The socket of plug discharging is provided by resistive element

The present invention relates to the plug and socket system, this system be used for computer equipment or other to electrostatic sensitive electrical equipment with interconnecting that the multiconductor connecting line carries out.More clearly, the present invention relates to provide the socket of plug discharging, particularly provide plug discharging by resistive element.

Common connecting line and plug haptic element static electrification, before inserting the computer aperture, plug at first is inserted in the discharge socket and pulls out, and the discharge socket makes the short circuit of plug haptic element, allows haptic element and connecting line discharge.Even so after, when plug inserts the computer aperture, other charged situation may take place also.Accordingly, in circuit, also have arresting element usually,, further make the haptic element discharge as diode.

The invention provides a kind of electric discharge device, this electric discharge device be made of one as the socket in equipment aperture.Needs have been removed like this to independent discharge step; Guaranteed discharge and contact at first between the aperture shortest time at interval, and prevented from when connecting, to take place because accident is neglected the possibility of discharge step.Needs have also been significantly reduced in the equipment self to the supplementary protection circuit.This electric discharge device further provides by the resistive element discharge, has prevented to feed back to any damage that the discharge on other hardware of connecting line causes.

By the following explanation that the reference accompanying drawing carries out, other characteristic of the present invention and advantage will be apparent.

Fig. 1 is: the cross-sectional view of first embodiment of the invention;

Fig. 2 is: the cross-sectional view of first embodiment of the invention insert profiled part;

Fig. 3 is: the cross-sectional view of second embodiment of the invention;

Fig. 4 is: the perspective view of second embodiment of the invention contact tube profiled part;

Fig. 5 is: the perspective view of third embodiment of the invention.

In first embodiment, with reference to figure 1, socket 10 has shell 11, and wherein a plurality of socket contacts 12 are arranged in the chamber 13 of shell 11.Socket contact 12 is used for admitting the haptic element 14 (one of them only is shown) of plug 16, and plug 16 can be received in the chamber 13 by aperture 17.The same with existing way, 17 have earth shield 18 on every side in the aperture.

Just in time within aperture 17, crossed shielding 18, insert 19 has been arranged.With reference to figure 2, insert 19 comprises the forming blocks 20 that the conductive plastics by known resistivity is molded into, and passes wherein and works as the flat wire 21 (only showing one of them among Fig. 1 and Fig. 2) of earthing contact.Advantageously, can when end pin 22 is formed on the wire 21, separate this band then, produce insert 19 by being shaped to band shape.

Quantity wiry equals the quantity of the haptic element 14 of plug 16, and the quantity of haptic element 14 is consistent with the quantity of socket contact 12.For example, if plug 16 has eight (8) individual haptic elements 14, just have eight (8) bar flat wire 21.When socket 10 was assembled, the pin 22 of insert 19 buckled in the groove 23 in the comb shape part 33 of socket 10, and insert 19 turns over 180 ° and puts in place.Like this at the pressure that forms on the wire 21 between arc 24 and assurance shielding 18 inner surfaces and the piece 19.

When plug 16 inserted and extracts, the pin 22 of wire 21 moved up and down in groove 23 separately, thereby makes wire 21 required moving both vertically become possibility.

When plug 16 inserts in the aperture 17, and just in time plug haptic element 14 touches socket contact 12 in chamber 13 before, because the position of the arc 24 of wire 21 has hindered the motion of plug haptic element 14, and plug haptic element 14 is by pushing away wire 21 downwards in groove 23, push wire 21 open, thereby between plug haptic element 14 and wire 21, produced and electrically contact.Because wire 21 is grounding in the shielding 18 by piece 19, the result has produced transient earthing, and has produced a series of resistance of any static process that will generate on the plug haptic element 14, the i.e. resistance of piece 19, discharge over the ground simultaneously.

The position of wire 21 and move is convenient to its ground connection with the plug haptic element and is connected in plug haptic element 14 and contact disconnection before with socket contact 12, thereby has prevented the damage that brings because of the internal circuit mistake ground connection of inline combination hub contact 12.

Another embodiment as shown in Figure 3 and Figure 4.This embodiment adopts the segmentation of known resistivity to fill carbonaceous conductive pipe 25.It is flexible and link respectively with plug haptic element 14 to fill each part charge 26 of carbonaceous conductive pipe 25.Pipe 25 is inserted between the wall of shielding 18 and comb shape part 33, and is fixed on the appropriate location with lock toe 27.Contact tube 25 electrically contacts by earthed surface 28 and shielding 18.

In operation, when plug 16 inserts in the apertures 17, and just in time before plug haptic element 14 touches socket contact 12, plug haptic element 14 engages with part charge 26.Because the elasticity of part charge 26, subsection part 26 is removed, and the result produces plug haptic element 14 by a series of resistance, promptly manages 25 resistance, the transient earthing that (both shielded 18) over the ground.Identical with the situation of first embodiment, the position of part charge 26 and move, the ground connection that is convenient to part charge and plug haptic element is connected in the disconnection before that links of plug haptic element and socket contact 12.

Another embodiment as shown in Figure 5.This embodiment adopts single moulding conduction O shape ring 29, and O shape ring 29 is positioned at the groove 31 of the conductance supporting element 32 of known resistivity, and the mode that works is identical with part charge 26 among Fig. 4 embodiment with Fig. 3.

Though the present invention describes with its relevant embodiment, many other variation and change and other purposes are conspicuous to the people who is proficient in this technology.Therefore propose, the invention is not restricted to special published content, only be subject to claims at this.

Claims

1. socket comprises:

Shell has the inner chamber of admitting plug;

The socket contact of at least one in described inner chamber is used for contacting with the plug haptic element of at least one;

At least one earthing contact, be arranged in the described inner cavity with conductance supporting with known resistivity, and be positioned on the path of described at least one plug haptic element and electrically contact with described plug haptic element, this moment, described plug inserted described socket, but fully inserted so that before described plug haptic element touches described socket contact at described plug; The shape of described at least one earthing contact and be designed to the distance of described at least one socket contact, when described plug further inserts, described plug haptic element is before electrically contacting with described at least one socket contact, and disconnection contacts with described earthing contact.

2. the socket of claim 1 is characterized in that: further comprise can ground connection shielding, and wherein said at least one earthing contact is electrically connected with described shielding by described conductance supporting.

3. socket comprises:

Shell has the inner chamber of admitting plug;

A plurality of socket contacts in described inner chamber are used for when plug is received in described inner chamber contacting with corresponding haptic element in the plug, and described plug is received in the described inner chamber along prescribed path;

A plurality of earthing contacts, be arranged in the described inner chamber with conductance supporting with known resistivity, and be positioned on the path of plug haptic element and electrically contact with described plug haptic element, this moment, described plug inserted described socket, but fully inserted so that before described plug haptic element touches described socket contact at described plug; The shape of described earthing contact and be designed to the distance of described socket contact, when described plug further inserted, described plug haptic element disconnected and the contacting of described earthing contact before electrically contacting with described socket contact.

4. according to the socket of claim 3, it is characterized in that: the described conductance supporting of each earthing contact is positioned at the porch of described inner chamber, each earthing contact comprises: conductive wire, one end embeds in the conductance supporting of described conductive wire, and upwards the free end that stretches is downwards again blocked by the wire guide plate, each conductive wire forms arc like this, free end is received in the groove that forms on the wire guide plate movably, this conductive wire can be moved down from initial position, in initial position, the part of this conductive wire is positioned on the path of corresponding plug haptic element, when it enters inner chamber and this plug haptic element electrically contact, and moved down by this plug haptic element, break away from this plug haptic element and this wire then and be returned to initial position after electrically contacting.

5. according to the socket of claim 4, it is characterized in that: further comprise can ground connection shielding, and wherein the conductance supporting of each described a plurality of socket contact by separately is connected with described shielding.

6. socket comprises:

Shell has the inner chamber of admitting plug;

A plurality of earthing contacts, segmented conductive pipe by known resistivity forms, the contact tube transverse arrangement of turbo enters under the motion path of inner chamber at the plug haptic element, each segmentation has an initial position and each segmentation flexible in the path of plug haptic element, thereby when engaging with corresponding plug haptic element, it moves down, and makes this plug haptic element can pass through this segmentation and corresponding socket contact contact, this divided reset after being disengaged with this plug haptic element.

7. according to the socket of claim 6, it is characterized in that: further comprise can ground connection shielding, and wherein each described segmentation is connected with described shielding by described contact tube.

8. according to the socket of claim 3, it is characterized in that: each earthing contact comprises conduction O shape ring.

9. according to the socket of claim 6, it is characterized in that: supporting includes the conducting element of the known resistivity of a plurality of grooves, and each ring of a plurality of O shape rings is placed in one of them of groove respectively.

10. according to the socket of claim 9, it is characterized in that: further comprise can ground connection shielding, and wherein each O shape ring is connected with described shielding by described conducting element.