CN2454915Y - Cable connector with improved earthing device - Google Patents

Abstract

The utility model relates to a cable connector, comprising a universal serial bus (USB electric connector for short), a cable which is electrically connected with the USB electric connector, a couple of conductive locking components which are arranged at one side of the USB electric connector, a cover body which covers the USB electric connector and a couple of ground grids which are arranged on an outer surface of the cover body, wherein, each locking component is electrically connected with a conductive shielding casing of the USB electric connector and is electrically and mechanically connected with a ground plate of an abutting electronic device. Each ground grid, the conductive shielding casing of the USB electric connector and the ground plate of the abutting electronic device are electrically connected and can form an electric return circuit.

Description

Wire and cable connector with earthing device of improvement

The utility model is a kind of wire and cable connector, especially refer to a kind of wire and cable connector that has ground connection snap close piece and ground connection grizzly bar simultaneously, this ground connection snap close piece electrically connects cable shading member that is connected and the ground plate that is placed in the butt joint electric connector on the electronic installation with the ground connection grizzly bar, thereby can be, and then reduce the electromagnetic interference of the signal transmission of wire and cable connector effectively with this shading member ground connection.

Wire and cable connector is normally used for electronic installation, as personal computer, is connected to ancillary equipment, as printer etc.This wire and cable connector is covered by the conduction shielding casing usually, thereby the interference of external electromagnetic waves is avoided in protection via this wire and cable connector electrons transmitted signal.This shielding casing must be connected to a reference voltage, thereby takes away the effect that reaches emi protection with the electric charge that will accumulate thereon.Yet; the shielding casing of existing wire and cable connector does not have the ground connection tie point of sufficient amount; reliably this shielding casing is connected to reference to earth point; therefore; above-mentioned charges accumulated can not in time be led away, thus the requirement that causes the electromagnetic protection effect of this electric connector not reach industrywide standard.In addition, existing wire and cable connector lacks the device that not only has grounding function but also have the mechanical lock buckle function, so that this wire and cable connector electrically is attached on the butt joint electronic installation.Thereby a kind of improvement wire and cable connector that has above-mentioned defective in the prior art that remedies is the required of present technique field.

The purpose of this utility model is to provide a kind of wire and cable connector, this wire and cable connector has the ground connection snap close piece and the ground connection grizzly bar that can be connected to the ground plate on the butt joint electronic installation simultaneously, thereby can make the shading member effective grounding of wire and cable connector, and then improve the anti-electromagnetic interference capability of this wire and cable connector.

For realizing aforementioned purpose, the technical solution of the utility model is: wire and cable connector comprises a pair of USB (Universal Serial Bus, hereinafter to be referred as the USB electric connector), article one, be connected to the cable of above-mentioned USB electric connector, one is opposite to the conduction snap close piece of the both sides of above-mentioned USB electric connector, the lid of the above-mentioned USB electric connector of one parcel, and a pair of ground connection grizzly bar that is placed in cover outer surface.Each snap close piece is V-shape and has a first arm and one second arm, wherein the shielding casing of this first arm and a corresponding above-mentioned USB electric connector electrically connects, and this second arm extends out so that electrically reach mechanical connection with the ground plate that docks electronic installation that this wire and cable connector will be pegged graft from above-mentioned lid side.Each ground connection grizzly bar has a base portion and a pair of conducting strip that extends out from this base portion.This base portion is positioned in cover outer surface, and this extends through lid to conducting strip and enter the inside of lid and be conducted with the shielding casing of above-mentioned USB electric connector respectively.The base portion of each grizzly bar also is provided with a pair of by the outward extending elasticity of base portion finger.When the utility model wire and cable connector with dock electronic installation and peg graft after, above-mentioned snap close piece dock the also electrically connection with it of ground plate snap close of electronic installation with this.The end of the elasticity finger of above-mentioned ground connection grizzly bar is resisted against above-mentioned ground plate, electrically connects thereby set up between the ground plate of the shielding casing of above-mentioned USB electric connector and butt joint electronic installation.

Owing to adopt such scheme, the advantage of the utility model wire and cable connector is: the conduction snap close piece is the element that this wire and cable connector is snapped into the butt joint electronic installation, be again earth element, thereby number of elements is tailed off the shadowing elements ground connection of this wire and cable connector.In addition, the ground connection grizzly bar is the dual fail-safe with this shadowing elements ground connection for the shadowing elements of this wire and cable connector provides another grounding path.

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

Fig. 1 is the schematic perspective view of the utility model wire and cable connector and the electronic installation that will peg graft with this wire and cable connector.

Fig. 2 is the three-dimensional exploded view of the utility model wire and cable connector.

Fig. 3 be after the utility model cable connector combination with electronic installation shown in Figure 1 on the stereogram of ground plate before docking.

Fig. 4 is the amplification plan view after the utility model wire and cable connector removes loam cake.

To be the utility model wire and cable connector combine the cutaway view of back along the A-A line of Fig. 3 with ground plate shown in Figure 3 to Fig. 5.

Fig. 6 is the zoomed-in view of the part that indicates with circle on Fig. 5.

Please at first with reference to figure 1, shown in Figure 2, the utility model wire and cable connector is used for and electronic installation, computer for example, and other servicing unit, as electrically connecting between the printer, so as between this electronic installation and other servicing unit transmission signal.Wherein, this electronic installation 2 comprises that a casing 21, two are installed in the ground plate 23 that first electric connector 22 on the casing 21 and are placed in side after the casing 21, wherein, this ground plate 23 is connected to a certain reference voltage (typically referring to ground connection) with a kind of for the known mode of personage of being familiar with this skill.The structure of the above-mentioned casing 21 and first electric connector 22 belongs to existing skill category, therefore, for for simplicity, is not described in detail at this.Above-mentioned ground plate 23 offers opening 24 and four blocks 25 that lay respectively at these four corners of opening of a longitudinal.All be provided with one on each limit of two relative sides of opening 24 and narrowly meet 26, this is narrow to meet 26 to be to be located between two adjacent blockers 25, and these structures help this wire and cable connector 1 reliably on the ground plate 23 attached to above-mentioned electronic installation 2.Describe in detail and hold aftermentioned.

With reference to shown in Figure 2, the utility model wire and cable connector 1 comprises a pair of second electric connector 10, USB (Universal Serial Bus for example, be called for short the USB electric connector), article one, be connected to the cable 20 on second electric connector 10, a lid 30 and an earthing device that wraps up above-mentioned second electric connector 10 and cable 20, wherein this earthing device comprises pair of conductive snap close piece 40 and first and second ground connection grizzly bar 50,51 that partly is housed in the above-mentioned lid 30.Each second electric connector 10 has a shielding casing 12; this shielding casing 12 wraps up the insulating body of this second electric connector 10 and the plurality of conductive terminals (not label) that is housed in this insulating body basically, thereby the influence of outside electromagnetic interference is avoided in protection by this conducting terminal electrons transmitted signal.The structure of this second electric connector 10 and this cable 20 belongs to existing skill category, and for for simplicity, this specification is not described in detail.

In the preferred embodiment of the utility model wire and cable connector, above-mentioned lid 30 comprises a upper cover body 32 and a lower cover 34, complies with existing skill after the whole appropriate arrangements of this upper and lower cover body 32,34 other element in needs are wrapped in it again with they combinations.This upper and lower cover body 32,34 has identical structure basically, therefore, below only the structure of lower cover 34 is done more detailed narration, and the structure of upper cover body 32 can be learnt by reference lower cover 34.

This lower cover 34 comprises that a main part 36 and is by main part 36 outer wall 38 of vertical extent certain altitude upwards.Main part 36 is provided with two through holes 362 in its front portion.Adjoiner at each through hole 362 rear portion all is provided with a depressed part 364 that is communicated with to recessed and corresponding with this through hole 362 of outer surface by the inner surface of lower cover 34.Main part 36 further is formed with a fin 39 on its outer surface.Each outer arm 38 is provided with a conduit 382 to accommodate above-mentioned conduction snap close piece 40 at its lateral surface.

Each conduction snap close piece 40 is V-shape basically and comprises a first arm 42 and one second arm 44.The first arm 42 forms one to the elastic cantilever 422 away from the second arm direction deflection.Second arm 44 is provided with a V-shape breach 442 in each of its end 444 to stile.

The first and second ground connection grizzly bars 50,51 are structurally similar each other, and therefore, the structure that only is described in detail the first ground connection grizzly bar, 50, the second ground connection grizzly bars 51 below then can be by learning with reference to first grizzly bar 50.The first ground connection grizzly bar 50 comprises the base portion 52 of a longitudinal, and the cross section of this base portion is the U font basically.Middle part at this base portion 52 upwards then extends back earlier pair of conductive sheet 54.The distance of described pair of conductive sheet 54 spaces equals the distance between the through hole 362 on the lower cover 34, thereby makes this can be passed described through hole 362 respectively rightly to conducting strip.The front portion of base portion 52 forms a pair of elasticity finger 58, and wherein, each elasticity finger 58 all has an end away from base portion 52 certain distances.The forwards outstanding and space certain distance in above-mentioned two elasticity fingers 58.

Please then refer to Fig. 3,4, when this wire and cable connector of combination, the second and first ground connection grizzly bar 51,50 is set to respectively on the upper and lower cover body 32,34.The base portion 52 of the first ground connection grizzly bar 50 is accommodated fin 39 and the combination with it on the lower cover 34.Conducting strip 54 on the first ground connection grizzly bar 50 extends through the through hole 362 on the lower cover 34 and enters depressed part 364.The second ground connection grizzly bar 51 is assembled into upper cover body 32 with the same manner.The end of the elasticity finger 58,59 of the first and second ground connection grizzly bars 50,51 will more close the utility model wire and cable connector 1 with respect to its base portion 52,53 front end, therefore, they will be prior to base portion 52,53 and the ground plate that docks electronic installation 2 23 butts, and make butt more reliable by its elasticity.Then, conducting strip 54,55 is bent certain angle so that the end of this conducting strip 54,55 can flexibly be connected on the shielding casing 12 of corresponding second electric connector 10 to the center near lid 30.Cable 20 is by being welded to the lead on it 202 on second connector terminals (not shown), thereby is electrically connected on aforementioned second electric connector 10.Second electric connector 10 is followed by placed side by side on lower cover 34, and the shielding casing 12 of each second electric connector 10 and conducting strip 54, the 55 elasticity butts on the ground connection grizzly bar 50,51.Like this, two shielding casings 12 electrically connect by the first ground connection grizzly bar 50.Aforementioned conduction snap close piece 40 is assembled into lower cover 34, and wherein, each the first arm 42 is housed in the corresponding with it conduit 382, and each second arm 44 is stretched by lower cover 34 1 epitaxial lateral overgrowths.Each elastic cantilever 422 projection inwardly and elasticity are connected to the outside of the shielding casing 12 of the second adjacent electric connector 10.Upper and lower cover body 32,34 then makes up mutually by existing skill.Therefore, the conducting strip on the second ground connection grizzly bar 51 55 just flexibly is connected to the top of the shielding casing 12 of second electric connector 10.Correspondingly, the electric charge on the shielding casing 12 just can be derived by first and second ground connection grizzly bar 50,51.Wire and cable connector 1 after the assembling is formed with two Bu Kou (not label), so that wire and cable connector 1 can be connected to two first electric connectors 22 (Fig. 1 shows) on the electronic installation 2 simultaneously.

Please refer to Fig. 3-5, when the utility model wire and cable connector was plugged on two first electric connectors 22 of electronic installation 2, the front end of wire and cable connector 1 was inserted into the opening 24 on the ground plate 23.During insertion, the external force that second arm 44 of conduction grip tab 40 is applied in is thereon inwardly pushed, and like this, each of second arm 44 terminal 444 just can extend through the opening 24 of ground plate 23.Corresponding first electric connector 22 is firmly after the butt joint on second electric connector 10 and electronic installation 2, remove aforementioned external force, under the effect of elastic force, the end 444 of second arm 44 outwards moves a certain distance and is housed in corresponding narrow meeting in 26, terminal 444 V-shape breach 442 and corresponding block 25 be snap close mutually, thereby, can prevent the utility model wire and cable connector 1 unexpected disengaging from the electronic installation 2, and between each shielding casing 12 and the ground plate 23 that docks electronic installation 2, set up grounded circuit.Elasticity finger 58,59 (Fig. 2 shows) resilient abutment of first and second ground connection grizzly bar 50,51 is in the outer surface (Fig. 6 shows) of ground plate 23, thereby just set up reliable electric connection between the two.Because ground plate is ground connection, shielding casing 12 is also ground connection thus, thereby do not have charges accumulated on shielding casing 12, thereby can guarantee that signal is successfully by 10 transmission of second electric connector.

Included a pair of second electric connector 10 of the most preferred embodiment of above-mentioned the utility model wire and cable connector is to be arranged side by side after separating manufacturing, and still, described two second electric connectors 10 also can be stacked up and down.In addition, described two second electric connectors 10 also can be integrally manufactured and be offered two interfaces, with respectively with dock electric connector and peg graft.These changes all should be considered as other execution mode of the present utility model.

Claims (7)

1. wire and cable connector, be used for being connected with butt joint electric connector on the ground plate that is placed in an electronic installation, this wire and cable connector comprises: at least one electric connector insulating body, some terminals that are housed in the insulating body, the conduction shielding casing of the described insulating body of at least one parcel, elements such as the lid of the described conduction shielding casing of one parcel and at least one conduction snap close piece, it is characterized in that: this conduction snap close piece has one and is immobilizated on the lid and is used for the first arm and that the conduction shielding casing electrically connects and the ground plate snap close of described electronic installation and set up second arm that electrically connects with ground plate, and this wire and cable connector also comprises at least one ground connection grizzly bar, this ground connection grizzly bar has a base portion and an at least one conducting strip that extends into lid and electrically connect with described shielding casing from base portion that is placed in the outer surface of described lid, described base portion is formed with at least one elasticity finger, this elasticity finger is protruded out forward by base portion so that elasticity is connected to described ground plate, when wire and cable connector with after described butt joint electric connector is connected, foundation electric connection between the shielding casing of conduction snap close piece and the online cable connector of ground connection grizzly bar and the ground plate that dock electric connector.

2. wire and cable connector according to claim 1 is characterized in that: the base portion of ground connection grizzly bar has certain distance apart from the front end of this electric connector.

3. wire and cable connector according to claim 2 is characterized in that: the end of the elasticity finger of described base portion protrudes out certain distance forward from this base portion, thereby the end of finger is than the front end of the more close electric connector of base portion.

4. wire and cable connector according to claim 1 is characterized in that: the first arm comprises an elastic cantilever that extends and electrically connect with this shielding casing to described shielding casing.

5. wire and cable connector according to claim 1 is characterized in that: second arm its end each to stile be provided with a V-shape breach with described ground plate snap close.

6. wire and cable connector according to claim 1, it is characterized in that: described lid is the U font basically at the cross section that its outer surface forms the base portion of at least one fin and described ground connection grizzly bar, this base portion combines with fin, thereby the ground connection grizzly bar is secured to lid securely.

7. wire and cable connector according to claim 1 is characterized in that: lid is provided with at least one allows the conducting strip of ground connection grizzly bar extend the through hole that passes through.

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